JPH07227754A - Wood polishing device - Google Patents

Abstract

PURPOSE:To provide a wood polishing device which provides excellent productivity by efficiently polishing a workpiece in a short time and which can reduce costs. CONSTITUTION:This wood polishing device has a freely rotating main body 20 whose outer periphery has a polishing-mated surface 14 formed into a predetermined shape to be mated with the shape of the part 11 of a workpiece 10 to be polished and a polishing element 22 located on the polishing-mated surface 14 and made of an air-permeable elastic material allowed to freely move into and out of contact with the part 11 of the workpiece 10 to be polished, and the main body 20 is provided with a communicating passage 23 through which fluids therein are expelled into the atmosphere by way of the polishing element 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus for woodworking, which is suitable for improving the finishing degree of a machined surface of wood processed by a blade, and particularly for improving the finishing degree of a curved surface portion. The present invention relates to a polishing device.

[0002]

2. Description of the Related Art Conventionally, a woodworking product often has a roughened surface when the wood as a raw material is processed into a predetermined shape with a desired cutting tool by a woodworking processing machine such as a router. However, the quality such as appearance was reduced and the commercial value was to be reduced. Therefore, conventionally, a workpiece (bare body) is processed using a polishing body made of a material such as cloth, paper, or resin coated with appropriate abrasive particles or a resin or the like having roughened surface. The surface, especially the curved surface, is polished to improve (finely) the skin finish of the processed surface to make it smooth, and even when there is a post-process such as painting, the final finished state of the woodworking product is good, Woodworking polishers are used to improve quality.

[0003] As such a conventional woodworking polishing apparatus, one for manually fixing (moving) the work piece while fixing the work piece, and one for manually working (moving) the work piece with the work piece fixed ( Two types are known, one that is adapted to move).

Such a conventional woodworking polishing apparatus will be described with reference to FIGS.

FIG. 10 is an explanatory view showing the outline of a conventional polishing apparatus for woodworking in which a polishing body is fixed and the workpiece is manually manipulated. FIG. 11 is a plan view in which a polishing body is fixed and the workpiece is manually manipulated. It is explanatory drawing which shows the outline of the other example of the conventional woodworking polishing device to operate, FIG. 12 is explanatory drawing which shows the outline of the conventional woodworking polishing device which fixes a to-be-processed object and operates a grinding body manually. FIG. 13 is an explanatory view showing an outline of another example of a conventional woodworking polishing apparatus in which a workpiece is fixed and a polishing body is manually operated.

As shown in FIG. 10, a conventional woodworking polishing apparatus 1A for fixing a polishing body and manually manipulating a workpiece.
Means that a desired polishing body 2A formed in a substantially cylindrical shape called a polishing block can be rotated and reciprocated by a drive source 3 such as an appropriate motor as shown by an arrow in the figure, and an appropriate mount 4 is provided. The work table 5 is provided at the center of the work table 5 having a substantially square shape in a plane. And
The polishing body 2A is made of a material such as cloth, paper, or resin whose surface is coated with appropriate abrasive particles, or resin whose surface is roughened.

As shown in FIG. 11, another conventional woodworking polishing apparatus 1B for fixing a polishing body and manually manipulating a workpiece is a polishing body formed in a substantially disc shape called a polishing disk. 2B and a polishing body 2C formed in the shape of an endless annular belt called a polishing belt are driven by a drive source (not shown) such as a motor to independently control the respective polishing bodies 2B and 2C, as indicated by arrows in the figure. As shown, it can be rotated, and an appropriate mount 6
Are arranged on both sides of the upper part of each of the polishing bodies 2B and 2C.
The desired work table 7 is provided so as to face the above. Further, each of the polishing bodies 2B and 2C is made of a material such as cloth, paper, or resin whose surface is coated with appropriate polishing particles, or resin whose surface is roughened, like the polishing body 2A. .

As shown in FIG. 12, a conventional woodworking polishing apparatus 1C for fixing a workpiece and manually manipulating a polishing body.
Is attached to a handy type main body 8 having a built-in drive source (not shown) such as a motor, and a removable disc-shaped polishing body 2B called a polishing disk is fixed to the main body 8 by an operator. It is possible to perform polishing processing by hand by gripping.

As shown in FIG. 13, another conventional woodworking polishing apparatus 1D for fixing a workpiece and manually manipulating a polishing body is a main body 9 of a desired shape having a gripping portion 9a of a desired shape. In addition, a polishing body 2D formed in a substantially rectangular plane shape called a removable sand paper is fixed to the above, and an operator grips the gripping portion 9a of the main body 9 to enable manual polishing. is there. Further, the polishing body 2D is formed of a material such as cloth, paper, or resin whose surface is coated with appropriate polishing particles, or a resin whose surface is roughened, like the polishing bodies 2A, 2B, and 2C. There is.

Next, an example of polishing of a workpiece using the above-described conventional woodworking polishing apparatus will be described with reference to FIG.

FIG. 14 is an explanatory view showing an example of polishing of a work piece using a conventional woodworking polishing apparatus.

FIG. 14 shows a polishing body 2 called a polishing belt.
FIG. 14 shows a case where a polishing portion 11 formed of a curved surface portion having a substantially semicircular cross section of a workpiece (wood) 10 cut by using C is subjected to polishing processing, and an arrow A in FIG.
The abrading body 2C rotating in the direction shown by is abutted by the operator's hand so that the abrading portion 11 of the workpiece 10 is directly opposed to the abrading body 2C, and the workpiece 10 is indicated by a two-dot chain line in FIG. And as indicated by a double-headed arrow B, while confirming the polishing state with the naked eye while operating to swing,
Polishing is performed by moving the workpiece in the direction indicated by a double-headed arrow C in FIG.

Further, the above-described conventional woodworking polishing apparatus 1
When the other polishing body 2 (general term for polishing bodies 2A, 2B, 2C, 2D) of (polishing device for woodworking 1A, 1B, 1C, 1D) is used, polishing of the workpiece 10 is also performed. Although there is a difference between manipulating 2 and manipulating the workpiece 10 by man, it is performed in substantially the same manner.

Such polishing of the polishing portion 11 of the workpiece 10 using the above-described conventional woodworking polishing apparatus 1 is carried out manually, so that a good polishing state can be obtained. Has a problem that it requires a skilled worker and requires a lot of time and labor.

Therefore, in order to cope with such a problem, the following two types of woodworking polishing apparatus 1 will be described, in which the polishing portion 11 of the workpiece 10 is automatically polished.
2 is proposed.

First, a first conventional woodworking polishing apparatus 12A for automatically polishing the polishing portion 11 of the workpiece 10 will be described with reference to FIG.

FIG. 15 is an explanatory view showing a main part of a first conventional woodworking polishing apparatus for automatically polishing a polished portion of a workpiece.

The first conventional polishing apparatus 12A for woodworking is used for polishing a polishing portion 11 such as an end face portion of a workpiece 10, and as shown in FIG.
The outer peripheral surface of the cylindrical main body 13 having 3a corresponds to the polishing corresponding surface 14 that matches the shape of the polishing portion 11 of the workpiece 10.
And a cloth, paper,
Desired abrasive body 1 formed of resin or the like coated with appropriate abrasive particles or resin or the like having roughened surface
5 is fixed by sticking or the like. That is, the shape of the surface of the polishing body 15 corresponds to the shape of the polishing portion 11.

In the woodworking polishing device 12A, the upper end (not shown) of the rotary shaft 13a is attached to a main shaft (chuck, not shown) of an appropriate woodworking processing device such as a router, and the rotary shaft 13a is mounted. 15 while rotating as shown by the arrow in FIG. 15 and bringing the surface of the polishing body 15 into contact with the polishing portion 11 of the workpiece 10 in the desired direction as shown by the chain double-dashed line and arrow in FIG. By moving it, the polishing processing of the polishing portion 11 is performed.

Next, a second conventional woodworking polishing device 12B for automatically polishing the polishing portion 11 of the workpiece 10.
Will be described with reference to FIGS. 16 and 17.

16 and 17 are explanatory views showing a second conventional polishing apparatus for woodworking, which automatically polishes a polishing portion of a workpiece, and FIG. 16 is a front view of a main portion, FIG. FIG. 4 is a side view of a main part.

A second conventional woodworking polishing apparatus 12B is used for polishing a polishing portion 11 such as a curved plane, and as shown in FIGS.
0 is detachable, a polishing body 2C called an endless annular belt-shaped polishing belt disposed above the processing table 16, and a back surface of the polishing body 2C contacting the processing table 14. And a pad 17 which is arranged so as to be lifted and lowered so as to be separated. And processing table 1
Reference numeral 6 is reciprocally movable at least in the left-right direction of the front by an appropriate drive device (not shown), as indicated by a double-headed arrow in FIG. Further, the polishing body 2C includes three rolls 18, 18, 18 and the pad 1 which are movable.
It is wound on the surface of 7. Each roll 18, 18, 18
Any one of them is a driving roll, and any two of them are driven rolls. By driving a driving source (not shown) such as a motor depending on the clogging state of the polishing body 2C, etc. To rotate the polishing body 2C.

Further, the pad 17 is provided with a polishing corresponding surface 14 having a shape matching the shape of the polishing portion 11 of the workpiece 10 so as to face the polishing portion 11 of the workpiece 10 ( (Fig. 17).

According to the second conventional woodworking polishing apparatus 12B thus formed, the polishing portion 11 of the workpiece 10 held on the processing table 16 by an appropriate clamp device (not shown). On the other hand, after the polishing surface 2C of the polishing body 2C is brought into contact with the polishing surface 14 of the pad 17 with a desired pressing force, the processing table 16 is pressed.
As shown by the double-headed arrow in FIG. 16, polishing is performed by reciprocating in the left-right direction on the front side. That is, in the polishing state, the shape of the surface of the polishing body 2C corresponds to the shape of the polishing portion 11.

A second conventional woodworking polishing device 12B is used.
As another example, as shown in FIG. 18, a length which is movable (swingable) about a fulcrum P as shown by a double-headed arrow in the figure following the shape of the polishing portion 11 of the workpiece 10. A woodworking polishing device 12B having a pad 17a having a short length L is also known.

[0026]

However, in the above-described first conventional woodworking polishing apparatus 12A, it is difficult to match the shape of the polishing surface 14 with the shape of the polishing portion 11 of the workpiece 10. Workpiece 10 after polishing
When the shape of the polishing part of the polishing part changes subtly, the shape before polishing may be different from the shape after polishing, or the polishing body 15 may be clogged in a short time to cause unevenness in the polishing state of the polishing part 10. There is an inconvenience in quality such as
Due to clogging of the polishing body 15, the life of the polishing body 15 is short,
Since the polishing body 15 has to be frequently replaced as a consumable item, the workpiece 10 cannot be polished efficiently in a short time, resulting in poor productivity and a large economic burden. there were.

A second conventional woodworking polishing device 12B is also provided.
In the above, for each shape of the polishing portion 11 of the workpiece 10,
It is necessary to create the pad 17 having the polishing corresponding surface 14 that matches the shape of the polishing portion 11, and the pad 17 has to be formed for each shape of the polishing portion 11 each time, and various types of pads 17 are formed. Therefore, a lot of labor and time are required, and it is necessary to replace and align the pad 17 in accordance with the shape of the polishing portion 11 of the workpiece 10, and for this reason, too much labor and time are required. Work piece 1
There was a problem that the polishing process of 0 could not be performed efficiently in a short time, the productivity was inferior, and the economic burden was large.

Incidentally, as shown in FIG.
Pad 17 movable according to the shape of the polished portion 11 of
In the woodworking polishing apparatus 12Ba having a configuration including a,
Since the length L of the pad 17a is short, the polishing region in one polishing process is reduced, and the polishing portion 1 of the workpiece 10 is reduced.
The polishing time for polishing the whole of No. 1 is increased, the polishing process of the workpiece 10 cannot be efficiently performed in a short time, the productivity is deteriorated, and the economical burden is large.

The present invention has been made in view of these points, and is capable of efficiently polishing a work piece in a short time, excellent in productivity, and capable of reducing economic burden. An object is to provide a polishing device.

[0030]

In order to achieve the above-mentioned object, a polishing apparatus for woodworking according to a first aspect of the present invention is formed on an outer peripheral surface in a predetermined shape corresponding to a shape of a polishing portion of a workpiece. And a rotatable body having a polishing surface, and a polishing body made of an air-permeable elastic body that is disposed on the surface of the polishing surface and that can be brought into and out of contact with a polishing portion of a workpiece. At the same time, the main body is provided with a communication passage through which a fluid is discharged from the inside to the atmosphere via a polishing body.

Further, in the polishing apparatus for woodworking according to the present invention, the reciprocating movable processing table on which the workpiece can be attached and detached, and the endless annular shape disposed above the processing table. In a woodworking polishing device having a polishing body and a pad that can be moved up and down from the back surface of the polishing body via the polishing body, the pad is movable so as to correspond to the shape of the polishing site of the workpiece. A plurality of pad bodies, pad body control means for switching each of the pad bodies to either a movable free state or an immovable restrained state, and a swingable arrangement at the lower end of each pad body. It is characterized by having a polishing corresponding surface forming member provided.

[0032]

According to the woodworking polishing apparatus of the present invention having the above-mentioned structure, the polishing body made of an elastic material having air permeability allows the polishing body to be polished during polishing. The surface of the polishing body is elastically deformed by bringing the surface of the polishing body into close contact with the polishing site of the workpiece. Further, at the time of polishing, since the fluid can be supplied to the polishing section through the polishing body, the clogging of the polishing body can be surely reduced, and the polishing site is cooled to reduce friction between the workpiece and the polishing body. It is possible to reliably reduce the heat generation due to.

According to the polishing apparatus for woodworking of the second aspect of the present invention, one pad is formed by a large number of pad bodies which are movable so as to correspond to the shape of the polishing portion of the workpiece. It is possible to easily form the polishing surface corresponding to the shape of the polishing portion of a wide variety of workpieces on the surface of the polishing surface forming member.

[0034]

The present invention will be described below with reference to the embodiments shown in the drawings. Incidentally, the same or corresponding configurations as those of the conventional one described above are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

1 and 2 show the essential parts of a first embodiment of a polishing apparatus for woodworking according to the present invention. FIG. 1 is a partially cutaway front view, and FIG. 2 is A- of FIG. It is a cross-sectional view along the line A.

As shown in FIGS. 1 and 2, the polishing apparatus 19 for woodworking according to the present embodiment has a cylindrical main body 20.
A spindle shaft 21 whose lower end is fixed to a through hole 20a formed in the axial center of the main body 20, and a polishing body 22 fixed to the outer peripheral surface of the main body 20.

The workpiece 10 is provided on the outer peripheral surface of the main body 20.
A polishing corresponding surface 14 having a predetermined shape corresponding to the shape of the polishing portion 11 (not shown) is formed. That is, the shape of the surface of the polishing body 22 corresponds to the shape of the polishing portion 11. Then, in the central portion of the main body 20 in the thickness direction, eight communication holes 23 having a desired shape and size that radially penetrate the main body 20 are radially formed.
The polishing-corresponding surface 14 of the outer peripheral surface of the main body 20 of each of the communication holes 23.
In this embodiment, a ventilation groove 24 having a circular front shape is formed at the side end.

The lower end of the spindle shaft 21 is
It is fitted in the through hole 20a of the main body 20 and fixed to the main body 20 by an appropriate fastening means 25 such as a desired washer and nut. Also, the spindle shaft 2
A fluid supply path 26 having a desired shape is formed at 0, and a fluid such as air sent from a compressor (not shown) or the like can be supplied to the communication hole 23 of the main body 20. Then, the other end of the spindle shaft 19 is attached to a rotating main spindle (not shown) of an appropriate existing woodworking machine such as a router, and in the machined state, the spindle shaft 21 is rotated in a desired direction. It is supposed to be movable. In addition, as the spindle shaft 21,
As long as the fluid can be supplied to the communication hole 23 of the main body 20, the main body 20 and the spindle shaft 21 may be integrated, and the configuration of the present embodiment is not particularly limited.

As the polishing body 22, for example, a rubber-like elastic body made of various rubbers, resins, etc., called an elastomer or the like, mixed with a desired polishing agent and formed into a mesh-like annular shape, , A rubber-like elastic body formed into a mesh-like ring and coated with a desired abrasive on the surface, or an elastic body made of sponge (open cells) coated with a desired abrasive, etc. Can be illustrated. When a sponge is used, use the sponge for the ventilation groove 24 of the main body 20.
May be formed so as to be filled in the portion or the ventilation groove 24 and the portion of the communication hole 23. Further, when the desired abrasive is applied to the surface of the elastic body, the application may not be applied to the entire surface and may be, for example, a lattice shape, a zigzag shape, a stripe shape, or the like. The configuration is not limited to the example.
Further, the rubber-like elastic body and the main body 20 may be integrated or separated.

Next, the operation of this embodiment having the above-mentioned structure will be described with reference to FIGS.

FIG. 3 shows a first polishing apparatus for woodworking according to the present invention.
It is explanatory drawing which shows an example of the processing state by an Example.

Polishing of the workpiece 10 by the woodworking polishing apparatus 19 of the present embodiment will be described. As shown in FIG. 3, the polishing body 22 fixed to the polishing corresponding surface 14 formed on the outer peripheral surface of the main body 20. The surface of the workpiece is brought into contact with the polishing portion 11 of the workpiece 10 fixed at a predetermined position, and while the spindle shaft 21 is rotated, air is supplied from the compressor (not shown) or the like to the fluid supply passage 26 of the spindle shaft 21. Is supplied (FIG. 1), and the main body 20 is moved along the polishing site 10 of the workpiece 9 as shown by the chain double-dashed line in FIG.

At the time of polishing, by supplying a fluid such as air to the fluid supply passage 26 of the spindle shaft 21 from a compressor (not shown) or the like, as shown by the arrow in FIG. After passing through the communication hole 23 of the main body 20 and being fed to the ventilation groove 24, internal pressure is applied, and thereafter, the air is discharged from the surface of the air-permeable polishing body 22 to the atmosphere (polishing portion). The fluid can be selected from various types such as air and nitrogen gas, but it is preferable to use air that is easy to handle, safe, and low cost (compressed air formed by a compressor). Further, during the polishing process, the fluid released from the surface of the polishing body 22 into the atmosphere is supplied to the polishing section, so that the clogging of the polishing body 22 due to the polishing powder can be surely reduced and the workpiece 10 of the workpiece 10 can be reliably reduced. The polishing portion 11 and the polishing body 22 are cooled, heat generation due to friction between the workpiece 10 and the polishing body 22 during polishing is reliably reduced, and polishing processing can be performed in a short time, and
It is possible to further improve the finishing degree of the processed surface and obtain a smooth finished surface (polished surface).

Further, the polishing body 22 is formed of an air-permeable elastic body, and even when the shape of the polishing portion 11 of the workpiece 10 and the surface shape of the polishing body 22 are slightly different, When the polishing body 22 is brought into contact with the polishing portion 11 of the workpiece 10 during polishing, the polishing body 22 elastically deforms, and the shape of the surface of the polishing body 22 follows the shape of the polishing portion 11 of the workpiece 10. It can be surely brought into close contact.

Therefore, according to the woodworking polishing apparatus 19 of this embodiment, unlike the conventional case, the polishing body 22 can be easily matched with the shape of the polishing portion 11 of the workpiece 10 and the polishing body 22 can be used.
Clogging is reliably reduced, the polishing state of the polishing portion 11 is made uniform, the life of the polishing body 22 is improved, and the polishing of the workpiece 10 can be efficiently performed in a short time. And the economic burden can be surely reduced.

In the present embodiment, the workpiece 10
Although the structure is fixed and the polishing device 19 for woodworking is moved, the polishing device 19 for woodworking may be fixed and the workpiece 10 may be moved so that the workpiece 10 and the polishing device 19 for woodworking are The structure is not particularly limited to the structure of this embodiment as long as the structure moves relatively.

FIGS. 4 to 8 show a second embodiment of a woodworking polishing apparatus according to the present invention, FIG. 4 is a front view showing the outline of the entire construction, and FIG. 5 is an enlarged view of the essential parts. 6 is a side view, FIG. 6 is a perspective view showing an essential part of a pad body, FIG. 7 is a partially enlarged perspective view showing an essential part of a polishing surface forming member, and FIG. 8 is a pad body and a polishing surface. It is a partially expanded explanatory view showing a mounting state with a forming member.

As shown in FIG. 4, the overall construction of the polishing apparatus 27 for woodworking of the present embodiment is roughly as follows: the processing table 16 on which the workpiece 10 is detachable, and the processing table 16 disposed above the processing table 16. Abrasive body 2 called an endless annular belt-like polishing belt made of a material such as a cloth, paper or resin coated with appropriate abrasive particles or a resin having roughened surface
C, and a pad 28 that is arranged so as to be able to come into contact with and separate from the processing table 16 via the polishing body 2C. Then, the processing table 16 is moved by an appropriate driving device (not shown).
As shown by a double-headed arrow in FIG. 4, it is reciprocally movable at least in the front left-right direction. Further, the polishing body 2C is
Three rolls 18, 18, 18 movable according to need
And is wound around the surface of the pad 28. Each roll 1
Any one of 8, 18, 18 is a drive roll, and any two are driven rolls, and a drive source (not shown) such as a motor is operated depending on the clogging state of the polishing body 2C. By rotating the drive roll by rotating the polishing body 2C
To be able to rotate.

As shown in FIG. 5, the pad 28 of this embodiment is used.
Are arranged in the case body 29, a large number of pad bodies 30, 30, ... Arranged in the case body 29 so that the lower ends thereof protrude. Pad body control means 31 referred to as a one-touch clamp for switching each pad body 30 to either one of a free state in which it can be slidably moved in the vertical direction in the drawing, or a restrained state in which it cannot move. And a large number of pad bodies 30,
It is formed of a substantially flat plate-shaped polishing surface-forming member 32 disposed below.

Each part of the pad 28 will be further described.

The case body 29 has a case base 33 arranged substantially parallel to the processing table 16 and a case base 3.
3 has a right side wall 34a and a left side wall 34b extending downward from both end portions toward the processing table 16, and is formed in a generally U-shape that is open downward.

Each pad body 30 is composed of a flat plate-shaped main body 35 having a substantially quadrangular front surface, and a polishing-corresponding-surface-forming-member mounting body 36 provided at a lower end portion of the main body 35. Further, as shown in detail in FIG. 6, two elongated holes 37 penetrating in the plate thickness direction are formed in the main body 35 so as to extend in parallel with each other with the longitudinal direction of each elongated hole 37 being the vertical direction. There is. Further, the polishing surface-attaching member attaching body 36 provided at the lower end of the main body 35 has a flat plate-like base portion 38 provided along the lower end portion of the main body 35 and a lower portion at both end portions in the longitudinal direction of the base portion 38. Protrusions 39, 39 having a substantially kamaboko shape protruding toward
And each of the protrusions 39, 39 is provided with a through hole 40 having a desired inner diameter and having the same axis.

Returning to FIG. 5, the pad body control means 31
Is a large number of pad bodies 30 arranged in the case body 29,
Case body 29 so that the long holes 37 of 30, ...
Desired through holes 41, 4 formed in both side walls 34a, 34b of the
Two penetrating shafts 42 (only one is shown) having a diameter substantially the same as the width W of the long hole 37 arranged so as to penetrate 1 and the right side of the case body 29 at the right end of the penetrating shaft 42. A substantially circular stopper 4 having a diameter larger than the diameter of the penetrating shaft 42 fixed so as to be arranged outside the wall 34a.
3 and the left side wall 34b of the case body 29 of the through shaft 42
And a clamp lever 44 having a screw portion (not shown) screwed to a screw portion (not shown) formed at the left end portion protruding outward from the. The pad body control means 31 is, in this embodiment, the processing table 1
It is provided in two places so as to be substantially parallel to 6.

That is, by rotating the clamp lever 44 of the pad body control means 31 clockwise, for example, the side walls 34a and 34b of the case body 29 are elastically deformed and moved so as to come close to each other, and the case body 29 is moved. Each pad body 30 disposed in the inside 29 of the case body 29 has side walls 34
Due to the approaching movements of a and 34b, the tightening state occurs,
Each pad body 30 can hold a restrained state in which the pad body 30 cannot slide (slide) vertically with respect to the working table 16. Further, by rotating the clamp lever 44 of the pad body control means 31 counterclockwise, for example, both side walls 34a, 3 of the case body 29 which are elastically deformed.
4b return to their original state so as to be separated from each other, and the pad bodies 30 arranged in the case body 29 are slidable (sliding) with respect to each other, and are brought into contact with and separated from the processing table 16. As described above, the pad bodies 30 can be slid in the vertical direction so that they can be kept movable.

In this way, the pad body control means 31 can switch each pad body 30 to either the movable free state or the immovable restrained state by operating the clamp lever 44. ing.

As shown in FIG. 7, the polishing surface forming member 32 has a substantially planar rectangular rubber layer 45 made of a desired rubber, and a planar surface made of a desired resin fixed to the lower surface of the rubber layer 45. With the rectangular sheet-shaped resin layer 46,
It is formed in at least a two-layer structure. The surface of the rubber layer 45 opposite to the surface on which the resin layer 46 is provided (upper surface)
A mounting portion 47 having a substantially semi-cylindrical shape is formed on the inner surface of the pad body 30 so as to correspond to the polishing-corresponding-surface-forming-member mounting body 36 of each pad body 30 shown by a two-dot chain line in the figure. The through-hole 4 having substantially the same diameter as the through-hole 40 formed in the protrusion 39 of the polishing-corresponding surface forming member attachment portion 47 of the pad body 30 is provided in each mounting portion 47.
8 is formed.

Then, each mounting portion 47 of the polishing surface forming member 32 is attached to each pad body 30 as indicated by an arrow in FIG.
Of the polishing-corresponding-surface-forming-member attaching body 36, the through-hole 48 formed in the mounting portion 47 of the polishing-corresponding-surface-forming member 32 and the polishing-corresponding-surface forming of each pad body 30. By arranging an appropriate shaft 49 (FIG. 8) so as to pass through the through holes 40 formed in both the projections 39 of the member attachment body 36, as shown in FIG. On the other hand, the polishing surface forming member 32 is swingably mounted as shown by a double-headed arrow in FIG.

Next, the operation of this embodiment having the above-mentioned structure will be described with reference to FIGS.

FIG. 9 shows a second embodiment of a woodworking polishing apparatus according to the present invention.
It is explanatory drawing which shows the edge sagging prevention state of the pad body by an Example.

In the polishing process of the workpiece 10 by the woodworking polishing apparatus 27 of this embodiment, the workpiece 10 is set at a desired position on the processing table 16 by a well-known appropriate clamping means (not shown). Be started by.

Next, by rotating the clamp lever 44 of the pad body control means 31 counterclockwise, for example, each pad body 30 is held in a free state in which it can be slid vertically with respect to the working table 16. Then, the pad 28 is attached to each roll 18, 18, 18 and the polishing belt 2C.
Together with or while moving the rolls 18, 18 and 18 to loosen the polishing belt 2C, it is lowered onto the polishing portion 11 of the workpiece 10.

Then, each pad body 30 of the pad 28 is
Each slides so as to follow the shape of the polishing portion 11 of the workpiece 10, and the resin layer 46 of the polishing surface-forming member 32.
The surface of is adhered to the polishing portion 11 of the workpiece 10. In this case, since each mounting portion 47 of the rubber layer 45 of the polishing surface forming member 32 is swingable with respect to each pad body 30 (FIG. 8), the resin layer 46 of the polishing surface forming member 32 is formed. It is possible to easily form the surface corresponding to the surface 14 corresponding to the shape of the polishing portion 11 of the workpiece 10 to be polished.

In this state, the pad body control means 31
By rotating the clamp lever 44 of, for example, in the clockwise direction, each pad body 30 is constrained in a state in which the pad body 30 retains the shape following the shape of the polishing portion 11 of the workpiece 10. That is, it is possible to easily form the polishing corresponding surface 14 that matches the shape of the polishing portion 11 of the workpiece 10.

Next, the pad 28 and the rolls 18, 18 and 18 and the polishing belt 2C, each having the polishing-corresponding surface 14 conforming to the shape of the polishing portion 11 of the workpiece 10, are properly processed. The pad 28 is brought into contact with the polishing portion 11 of the workpiece 10 via the polishing belt 2C (FIG. 5). Then, the polishing process is performed by reciprocating the processing table 16 as shown by the double-headed arrow in FIG.

Further, since the polishing surface-forming member 32 has the rubber layer 45, the shape of the polishing portion 11 of the workpiece 10 and the shape of the surface of the resin layer 46 of the polishing-surface forming member 32 (polishing). Even if the corresponding surface 14) is slightly different,
When the pad 28 is brought into contact with the polishing portion 11 of the workpiece 10 via the polishing belt 2C with a desired pressing force during the polishing process, the polishing surface-forming member 32 swings with respect to the pad body 30, and the polishing is performed. Since the rubber layer 45 of the corresponding surface forming member 32 is elastically deformed, the polishing belt 2C is attached to the workpiece 1
It is possible to surely adhere the state in which the shape of the polished portion 11 of 0 is surely matched.

Further, the resin layer 4 of the polishing surface forming member 32.
It is preferable that 6 is formed of a slippery resin such as Teflon or Duracon, because friction with the polishing belt 2C can be reduced.

Therefore, according to the polishing apparatus 27 for woodworking of this embodiment, unlike the conventional one, one pad 28 can easily adapt to various shapes of the polishing portion 11 of the workpiece 10. Polished part 1 of workpiece 10
Since the polishing corresponding surface 14 corresponding to the entire width of 1 can be easily formed, the polishing processing of the workpiece 10 can be efficiently performed in a short time, the productivity is surely improved, and the economical efficiency is achieved. The burden can be surely reduced.

In the present embodiment, the workpiece 10
Although the processing table 16 with the fixed workpiece is reciprocated, the processing table 16 with the workpiece 10 fixed may be fixed and the polishing belt 2C is reciprocated together with the pad 28. In particular, the configuration of the present embodiment. It is not limited to.

In the present embodiment, as shown in FIG. 9, the lower end of the pad body 30a located outside the end surface of the polishing portion 11 of the workpiece 10 (outside the polishing portion 11) is covered with By locating the pad 30b above the lower end of the polishing portion 11 of the workpiece 10 above the lower end, it is possible to reliably prevent the end surface 11a of the polishing portion 11 of the workpiece 10 from sagging.

Further, the present invention is not limited to the above-mentioned embodiment, but can be modified as necessary.

[0071]

As described above, according to the polishing apparatus for woodworking of the present invention, the surface of the polishing body can be surely brought into close contact with the polishing portion of the workpiece, and the polishing processing of the workpiece can be performed in a short time. It has an extremely excellent effect that it can be efficiently carried out, and the productivity is excellent and the economical burden can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cut front view showing a main part of a first embodiment of a woodworking polishing apparatus according to the present invention.

FIG. 2 is a transverse cross-sectional view taken along the line AA of FIG. 1 showing a main part of the first embodiment of the wood working polishing apparatus according to the present invention.

FIG. 3 is an explanatory view showing an example of a processing state of the polishing apparatus for woodworking according to the first embodiment of the present invention.

FIG. 4 is a front view showing the outline of the main part of the overall configuration of the second embodiment of the wood working polishing apparatus according to the present invention.

FIG. 5 is an enlarged side view of essential parts of a second embodiment of a woodworking polishing apparatus according to the present invention.

FIG. 6 is a perspective view showing a main part of a pad body of a second embodiment of a wood working polishing apparatus according to the present invention.

FIG. 7 is a partially enlarged perspective view showing a main part of a polishing surface forming member of a second embodiment of a wood working polishing apparatus according to the present invention.

FIG. 8 is a partially enlarged explanatory view showing a mounted state of the pad body and the polishing surface forming member of the second embodiment of the polishing apparatus for woodworking according to the present invention.

FIG. 9 is an explanatory view showing a state where the pad body is prevented from being drooled by a second embodiment of the wood working polishing apparatus according to the present invention.

FIG. 10 is an explanatory view showing an outline of a conventional woodworking polishing apparatus that fixes a polishing body and manually operates a workpiece.

FIG. 11 is an explanatory view showing an outline of another conventional polishing apparatus for woodworking in which a polishing body is fixed and a workpiece is manually operated.

FIG. 12 is an explanatory view showing an outline of a conventional woodworking polishing apparatus in which a workpiece is fixed and a polishing body is manually operated.

FIG. 13 is an explanatory view showing an outline of another conventional polishing apparatus for woodworking, in which a workpiece is fixed and a polishing body is manually operated.

FIG. 14 is an explanatory diagram showing an example of polishing of a workpiece using a conventional polishing apparatus for woodwork that is manually operated.

FIG. 15 is an explanatory view showing a main part of a first conventional woodworking polishing apparatus for automatically polishing a polished portion of a workpiece.

FIG. 16 is an explanatory diagram showing a second conventional woodworking polishing apparatus that automatically polishes a polished portion of a workpiece.

FIG. 17 is a front view of the main part of FIG.

FIG. 18 is a side view of the main part of FIG.

[Explanation of Codes] 2C Polishing Body 10 Workpiece 11 Polishing Part 14 Polishing Surface 16 Processing Table 19 Woodworking Polishing Device 20 Main Body 21 Spindle Shaft 22 Polishing Body 23 Communication Hole 24 Ventilation Groove 26 Fluid Supply Channel 27 Woodworking Polishing Device 28 pad 30 pad body 31 pad body control device 32 polishing surface forming member 45 rubber layer (of polishing surface forming member) 46 resin layer (of polishing surface forming member)

Claims (2)

[Claims] 1. A rotatable body having, on its outer peripheral surface, a polishing-compatible surface formed in a predetermined shape corresponding to the shape of a polished portion of the workpiece, and a workpiece disposed on the surface of the polishing-compatible surface. And a polishing body made of an elastic material having air permeability, which can be brought into contact with and separated from the polishing site, and a communication passage for discharging a fluid from the inside to the atmosphere through the polishing body is provided in the main body. A polishing device for woodworking characterized by the above. 2. A reciprocating processing table to which a work piece is detachably attached, an endless annular polishing body disposed above the processing table, and a rear surface of the polishing body through the polishing body. In a woodworking polishing device having a vertically movable pad, the pad is a large number of pad bodies that are movable so as to correspond to the shape of the polished portion of the workpiece,
Pad body control means for switching each of the pad bodies to one of a movable free state and an immovable restrained state, and a polishing-corresponding surface formed at the lower end of each pad body so as to be swingable. A polishing device for woodworking, comprising: a member.