JP3462268B2 - Surface treatment equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment apparatus, and more particularly to a novel surface treatment apparatus adaptable to the treatment of surfaces having various curved surface shapes.

[0002]

2. Description of the Related Art Conventionally, in order to polish a workpiece, buffing is generally performed by using a polishing tool having a shape corresponding to the workpiece. For example, for polishing the inner surface of a pipe. In the above, a cylindrical polishing member is inserted into the pipe, and the polishing member is rotated for polishing. In this case, when a long object is polished by the buffing method, the workability of polishing and the polishing accuracy are deteriorated because the insertion distance of the polishing member becomes long.

Therefore, a magnet is attached to the inside of a ring-shaped rotating member, and while the pipe is inserted into the rotating member, the rotating member is rotated around the pipe,
A magnetic polishing method is used, which is configured to feed in the axial direction of the pipe, and drives the magnetic polishing abrasive grains and the like contained in the pipe by the rotation of the rotating member. In this case, as a magnetic polishing apparatus that employs the magnetic polishing method, there are a magnetic rotating apparatus that rotates a pipe during polishing, and an apparatus that performs polishing while inserting an iron core into the pipe.

[0004]

However, the magnetic polishing apparatus described above polishes only a straight pipe, and cannot polish objects of other shapes. For example, even if the pipes are the same, a T-shaped pipe, an L-shaped pipe, etc. cannot be polished while being inserted into a rotating member, and in particular, polishing of a branched portion or a bent portion of these pipes is almost impossible. It is possible. Further, a pipe once installed in a building or the like has a problem that a fitting for fixing and supporting the pipe is an obstacle, and polishing or cleaning treatment is difficult even if the above device is modified. . This situation also applies to the buffing method. Therefore, the present invention is to solve the above problems, and the problem is that there is an obstacle even on the surface of an object to be processed having various shapes such as a curved surface or between the object to be processed. Even in the case of doing so, it is to obtain a new surface treatment device which can easily cope with the situation.

In order to solve the above-mentioned problems, the means taken by the present invention is a rotary shaft which is rotationally driven by a drive means, and a flexible and elastic structure which is connected to the rotary shaft and has a processing member attached to a plate surface. A rotating plate having a rotating plate and a restricting plate that comes into contact with the rotating plate and restricts the rotating plate to a predetermined bent shape or curved surface shape, and when the rotating shaft rotates at a predetermined rotation speed,
The rotating plate is pressed against the regulation plate by centrifugal force,
It is deformed into a saddle-shaped curved surface shape along the inner surface of the magnetic tube, and the rotary plate is arranged to approach or contact the non-magnetic tube to directly or indirectly treat the surface of the non-magnetic tube. Is. More specifically, the regulation plate is
It is preferable that a flat plate portion having an insertion hole through which the rotary shaft is inserted and a swash plate portion continuously formed on both left and right sides of the flat plate portion are formed. In this case, it is desirable that the inclination angle of the swash plate portion be changeable.

Further, it is preferable that the regulating plate has a shape for holding the rotary plate which is rotationally driven by the rotary shaft in a shape along the surface to be processed.

In these cases, it is preferable to provide means for changing the distance between the rotary plate and the regulating plate.

Further, it is preferable to provide means for changing the shape of the regulation plate.

According to the present invention , since the regulation plate regulates the rotary plate, the rotary plate having flexibility is regulated by the regulation plate.
Since it is deformed , the plate surface of the rotary plate can be adjusted to a shape suitable for the surface of the object to be processed.

Further, by regulating the rotation plate shape along the surface to be processed by the regulating plate, since it is possible to the distance between the surface of the object of the rotary plate constant, the surface of the workpiece It can be processed uniformly.

Further , by restricting the distance between the rotary plate and the restriction plate, the restriction amount of the restriction plate with respect to the rotary plate can be changed and the shape of the rotary plate can be changed.

Further, by changing the shape of the regulation plate, it is possible to change the shape of the rotary plate is regulated.

[0013]

Embodiments of the present invention will now be described with reference to the drawings. First Embodiment FIG. 1 shows a main structure of a magnetic surface treatment apparatus according to a first embodiment of the present invention. The non-magnetic tube 1 is a pipe made of stainless steel or aluminum, for example.
A rotary shaft 2 rotated by a motor (not shown) extends from above toward the non-magnetic tube 1. The rotating shaft 2 is
It is connected to the flexible rotary plate 3 at its lower end.
The rotating plate 3 is formed by processing a soft resin sheet into a disk shape, and the lower surface of the rotating plate 3 is composed of rare earth magnets or the like so as to be dispersed in different directions centering on the connecting portion with the rotating shaft 2. A plurality of magnets 4 are distributed and attached.

The regulation plate 5 has an insertion hole 5 through which the rotary shaft 2 is inserted.
It is composed of a flat plate portion 5a provided with d, and swash plate portions 5b and 5c formed continuously on the left and right sides of the flat plate portion 5a, and is supported by a frame (not shown). Swash plate parts 5b, 5c
Is a predetermined angle (for example, 30
Angle), and the outer peripheral portion of the rotary plate 3 is pressed downward. Here, when the rotating shaft 2 rotates at a predetermined number of rotations, the rotating plate 3 having flexibility is pressed against the regulating plate 5 by a centrifugal force, and as shown in the drawing, the rotating plate 3 is substantially along the inner surface 1a of the non-magnetic tube 1. It is transformed into a curved surface shape (saddle type).

The material of the rotary plate 3 may be any material other than the above-mentioned materials as long as it has flexibility, such as a natural or synthetic rubber sheet, a thin metal plate, etc., but a material having a predetermined elasticity. Is preferred. Moderate elasticity stabilizes the rotating posture of the rotating plate. In addition, it is preferable that the surface shapes of the rotary plate 3 and the regulation plate 5 are made smooth so that the sliding resistance between them is as low as possible. At the time of connection between the rotary shaft 2 and the rotary plate 3, the gap between the rotary plate 3 and the regulating plate is adjusted in advance so that the rotary plate 3 in the rotating state is deformed into a curved surface that matches the inner surface 1a of the non-magnetic tube 1. It is fixed.

Inside the non-magnetic tube 1, there is contained a slurry 6 made by mixing abrasive grains, magnetic grains having a predetermined grain size, and polishing oil. The slurry 6 is attracted by the magnetic flux generated by the magnet 4 attached to the rotary plate 3 so as to generate a predetermined polishing pressure on the inner surface portion facing the magnet 4 as shown in the figure, and the slurry 6 is not rotated as the rotary plate 3 rotates. It rotates on the inner surface 1a of the magnetic tube 1.

FIG. 2 is a perspective view showing a state in which the above magnetic polishing apparatus is applied to the non-magnetic tube 1. In this figure, the rotary shaft 2 is rotationally driven by a motor 7. The motor 7 is supported by a frame (not shown), and is driven by a known transport mechanism so as to be movable in the axial direction of the non-magnetic tube 1. On the other hand, since the magnetized tube 1 is rotated in a predetermined direction by a rotation mechanism (not shown), its inner surface is uniformly polished over the entire circumference.

In this embodiment, since the plate surface of the rotary plate 3 is maintained by the rotation of the rotary plate 3 in the same manner as the inner surface shape of the non-magnetic tube 1 to be polished, the non-magnetic tube 1 also has an annular shape. Regardless, the distance between the magnet 4 and the inner surface 1a can be made sufficiently close. Therefore, the polishing efficiency can be improved with respect to the magnetic strength. Further, by changing the shape of the regulation plate 5, the shape of the rotating plate 3 during rotation can be changed, so that the surface of an arbitrary shape can be efficiently polished.

Next, a second embodiment according to the present invention will be described with reference to FIG. In this embodiment, a swinging mechanism is further added to the same structure as the above embodiment, which faces the outer surface of the non-magnetic tube 1. The rotary shaft 2, the rotary plate 3 to which the magnet 4 is attached, the restricting plate 5, and the motor 7 are the same as those in the above-described embodiment, and therefore their explanations are omitted. However, a flange portion 2a is formed on the rotary shaft 2, and the flange portion 2a is rotatably attached to the regulation plate 5 via a bearing. Two support rods 8 and 8 are fixed to the regulation plate 5.
Is connected to the engagement member 9 at the top. A pair of engagement wheels 10 and 10 having a rubber peripheral surface are rotatably attached to the engagement member 9, and the engagement wheel 10 is fitted into an arc groove 11a formed in a frame 11. There is. Frame 11
Are attached so as to be movable in the axial direction of the non-magnetic tube 1 by a mechanism (not shown).

The engaging member 9 incorporates the drive mechanism shown in FIG. In this drive mechanism, the output pinion 13a of the motor 13 drives the output gear 12 via the drive belt 15 which is strained by the side gears 14, 14 and rotationally drives the engagement vehicle 10. By this drive mechanism, the rotary shaft 2, the rotary plate 3, the regulating plate 5, and the motor 7 are swung in the left-right direction via the support rods 8, 8, and this swing causes the polishing site on the inner surface of the non-magnetic tube 1 to move to the left and right. It is designed to move in the direction.

According to this embodiment, the wide inner surface portion of the non-magnetic tube 1 can be polished without rotating the non-magnetic tube and the magnetism generating mechanism, so that the T-shaped tube and the L-shaped tube can be polished. A pipe material having a branched portion or a bent portion such as can also be polished without avoiding the branched portion or the bent portion. Also,
Even when the inner surface of a pipe already installed in a building or the like is polished or washed, the treatment can be easily performed without being obstructed by a structure such as a pipe fitting.

In the above embodiment, the case where the permanent magnet is attached to the rotary plate has been described, but an electromagnetic coil may be used for this magnet. On the other hand, when polishing the outer surface of the tube by buffing without using magnetism, even if the buff is attached to the plate surface of the rotating plate and the surface of the rotating plate is in direct contact with the surface to be polished, good. Also, by attaching an indirect polishing member such as a magnet together with a direct polishing member such as a buff to the plate surface of the rotating plate, the outer surface of the pipe material can be buffed and the inner surface of the pipe material can be magnetically polished. Simultaneous polishing of the outer surface is possible.

In the above embodiment, an example of polishing the inner surface of the non-magnetic tube has been described. However, even a magnetic tube can be polished in the same manner as above if the tube is thin to some extent. Further, it is apparent that the present invention can be applied to not only the inner surface of the tube but also the outer surface of the tube. Furthermore, not only polishing, but also all surface treatments such as surface cleaning treatment, chemical etching, and surface coating can be similarly applied by substituting chemicals for the abrasive grains used with the magnetic substance.

In the above embodiment, the regulating plate is arranged on the opposite side of the non-magnetic tube which is the object to be treated as viewed from the rotating plate. However, when treating the concave surface, the regulating plate is conversely on the side of the object to be treated. The same processing can be performed by arranging the above. Here, also in the above embodiment, for example, by forming the rotating plate in advance as a curved plate having a curvature greater than or equal to the curvature of the tube wall of the non-magnetic tube, the regulating plate is arranged on the non-magnetic tube side. Conversely, it is also possible to function so as to suppress the curvature of the rotary plate.

FIG. 5 shows the configuration of the essential parts of a third embodiment according to the present invention. In this embodiment, the chuck 16 is attached to the output shaft of the motor 7, and the rotary shaft 2 is gripped by the claw portion 16a of the chuck 16. Support rod 3
1 is fixed to a frame (not shown) that rotatably supports the chuck 16. In this case, by changing the gripping position of the claw portion 16a of the chuck 16 with respect to the rotation shaft 2, the center position of the rotation plate 3 can be moved up and down with respect to the regulation plate 4.

When the center position of the rotating plate 3 is moved up and down by moving the rotating shaft 2 up and down as described above, as shown by the alternate long and short dash line in FIG.
The radius of curvature of the rotary plate 3 during rotation can also be changed by using. Therefore, it is possible to easily cope with pipe materials having different diameters. Here, although the rotating shaft 2 is moved up and down by the chuck 16 in the above embodiment, means for changing the connection position between the rotating shaft and the rotating plate may be provided,
Further, a means for changing the position of the regulation plate may be provided.

FIG. 6 shows the construction of the essential parts of a fourth embodiment according to the present invention. In this embodiment, the flat plate portion 5a of the regulation plate 5 and the swash plate portions 5b and 5c are rotatably connected by the hinge fittings 17. The hinge fitting 17 rotates about the hinge shaft 17a, but is fixed at a predetermined angle by a fixing fitting (dotted line in the figure) 18 attached to the end of the hinge shaft 17a. An arc groove 18 is provided on the fixing bracket 18.
a is formed, and the swash plate portions 5b and 5c are formed in the arc groove 18a.
The thumbscrew 19 screwed into the end face of the is inserted. By tightening this thumbscrew 19, the swash plate parts 5b, 5c
Is positioned and fixed with respect to the fixing bracket 18. The support rod 32 fixes the flat plate portion 5a to a frame (not shown).

In this embodiment, the radius of curvature of the rotary plate 3 can be changed by changing the shape of the regulating plate 5 by changing the angles of the swash plate portions 5b and 5c, so that pipes having different diameters can be very easily obtained. Can respond. Of course, by considering the shape of the regulation plate 5, not only the tubular body but also the surface of any other shape can be made to correspond to the shape of the rotary plate to perform polishing or other surface treatment.

[0029]

As described above, according to the present invention, since the regulating plate regulates the rotating plate, the flexible rotating plate is deformed by the regulating plate. The surface of the object to be treated can be adjusted to a suitable shape before the treatment. Therefore, the surface of the object to be processed having various shapes can be flexibly dealt with and the processing can be efficiently performed. In addition, the deformation state of the rotary plate can be adjusted in a wide range by exchanging the regulation plate or deforming the regulation plate according to the surface shape of the object to be treated, so that it is possible to easily deal with various objects to be treated.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a schematic configuration of a first embodiment according to the present invention.

FIG. 2 is a perspective view showing a polished state of the first embodiment.

FIG. 3 is a cross-sectional view of a main part showing a second embodiment according to the present invention.

FIG. 4 is a perspective view for explaining a part of a swinging mechanism according to the second embodiment.

FIG. 5 is a cross-sectional view of essential parts showing a third embodiment according to the present invention.

FIG. 6 is a cross-sectional view of a main part showing a fourth embodiment according to the present invention.

[Explanation of symbols]

1 Magnetic tube 2 rotation axes 3 rotating plate 4 magnets 5 regulation plate 5a Flat plate part 5b, 5c Swash plate part 6 slurry 7,13 motor 9 Engagement member 10 engaging car 11a arc groove 16 chuck 16a claw 17 Hinge fittings 17a hinge shaft 18 Fixing bracket 18a arc hole 19 thumbscrew

Claims (3)

(57) [Claims] 1. A rotary shaft which is rotationally driven by a driving means.
And a processing member attached to the plate surface connected to the rotary shaft
The rotating plate with flexibility and elasticity, and contacting the rotating plate
Regulating the rotating plate to a predetermined bent shape or curved shape
Has a regulation plate,When the rotation shaft rotates at a predetermined rotation speed, the rotation plate
It is pressed against the regulation plate by centrifugal force and is
It is transformed into a saddle type curved surface shape along the surface, The rotating plateThe non-magnetic tubeClose to or in contact with
Directly or indirectlyNon-magnetic tubeTo treat the surface of
A structured surface treatment device. 2. The regulating plate according to claim 1, comprising a flat plate portion having an insertion hole through which the rotary shaft is inserted, and swash plate portions continuously formed on both left and right sides of the flat plate portion. A surface treatment device. 3. The surface treatment apparatus according to claim 2, wherein the inclination angle of the swash plate portion is changeable.