JP2001153226A - End plate for fixing bellows, bellows fixed with the end plate, and bellows set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an end plate which can be fitted very simply. SOLUTION: This end plate 10 for fixing a bellows is fixed to the front or the back of a bellows 1 having an expansible horizontal part 3 where a crest part 3a and a valley part 3b are alternately formed, on expansible leg part 4 connected to one end of the horizontal part 3 to be extended downward, in which a crest part 4a and a valley part 4b are alternately formed, and the other expansible leg part 5 connected to the other end of the horizontal part 3 to be extended downward, in which a crest part 5a and a valley part 5b are alternately formed. The end plate 10 is equipped with a horizontal plate part 11 formed to have the substantially same shape as the front or the back of the horizontal part 3 of the bellows 1, one vertical plate part 12 connected to one end of the horizontal plate part 11 to be extended downward, the other vertical plate part 13 connected to the other end of the horizontal plate part 11 to be extended downward, one passing part 14 formed on the back of the above one vertical plate part 12 for passing one leg part 4 constituting the bellows 1, and the other passing part 15 formed on the back of the above other vertical plate part 13 for passing the other leg part 5 constituting the bellows 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bellows fixing end plate used for attaching a bellows to a machine tool or a device, and to a bellows to which the end plate is fixed and a bellows set.

[0002]

2. Description of the Related Art Hitherto, bellows have been used as components constituting, for example, a camera and an accordion.
In recent years, it has been used as a component of a machine tool such as a laser beam machine or a welding machine. on the other hand,
Some industrial machines such as machine tools have a drive table as a component for mounting a reciprocating work or fixing various drive units such as a welding unit and a cutting unit. As a device for driving such a driving table in a linear direction, a linear motion device is used. And
Such a linear motion device includes a guide rail, and a moving body such as a drive table attached to the guide rail and reciprocating along the guide rail.
Some of the guide rails are configured as long screws that are rotated by a motor, and the moving body is moved in the length direction of the screws by turning the screws. In such a linear motion device, lubrication is conventionally provided on the front and back surfaces of the moving body as a component for ensuring that the moving body is smoothly reciprocated along a guide rail or a long screw. There is a plate in which a grease nipple or the like for discharging grease, which is oil, is fixed, and a plate in which an end seal is fixed to this plate.

[0003] However, the configuration of such a conventional linear motion device is not a measure for preventing cutting oil or cutting waste discharged from machine tools or the like, or dust from factories or the like from adhering to guide rails or the like. This is sufficient, and it may not always be possible to guarantee that the moving body is smoothly reciprocated along the guide rails or the like. Therefore, conventionally, in order to solve such a problem, a bellows is attached between the end side of the guide rail and the like and the moving body, and the guide rail and the like are covered with the bellows, so that the cutting oil or the cutting chips, or This prevents dust from a factory or the like from adhering to the guide rails and the like, and assures that the moving body can be smoothly reciprocated along the guide rails and the like.

[0004]

By the way, most bellows used as components of such a linear motion device or another machine tool have valleys and ridges formed alternately by bending a sheet body. Then, a metal or resin end plate is adhered to the front and back (both ends of the bellows) of the bellows main body thus formed, and the end plate is interposed therebetween.
A method is employed in which one end is fixed to an end such as a guide rail and the other end is fixed to a moving body. For example, as shown in FIG. 8, one end of a bellows main body 100 in which valleys 100a and ridges 100b are alternately formed by bending a sheet body (reference numerals are omitted) is provided with a U-shaped (portion of a gate). One end plate 101 shaped in a U-shape is fixed, and the other end plate 102 shaped in a U-shape (gate shape) is fixed to the other end of the bellows main body 100. In this fixing method, three double-sided adhesive tapes 103 are attached to the front (and back) of the bellows main body 100, respectively.
In this method, the end plates 101 and 102 are attached via the double-sided adhesive tape 103. The one and other end plates 101 and 102 are provided with through holes 101a and 102a through which screws are inserted, and the bellows are provided at the end of a guide rail or the like (not shown) or at the front of the moving body (not shown). Or the back surface), the through holes 101a, 102
It is fixed by a screw (not shown) inserted through a.

[0005] However, the method of attaching the end plate used for fixing the bellows is extremely complicated when a large number of bellows are manufactured. Also,
In recent years, bellows in which an intermediate plate is welded to the inside of each crest formed by bending a sheet body have been proposed and put into practical use, but an intermediate plate corresponding to each crest is a constituent element. For such bellows, an end plate that can be more easily attached is desired.

Accordingly, the present invention has been proposed to solve the problems of the above-mentioned conventional end plate attached to the bellows, and has as its object to provide an end plate which can be attached very easily. It is assumed that.

[0007]

Means for Solving the Problems The present invention has been proposed to solve the above-mentioned problems, and a first invention (invention of claim 1) relates to an end plate for fixing bellows. A horizontal portion in which peaks and valleys are formed alternately and expandable and contractable, and one leg that extends downward from one end of the horizontal portion and that alternately forms peaks and valleys and expands and contracts. Part, the other part of the horizontal part is continuous downward from the other end, the crest and the valley are alternately formed and provided with the other leg that expands and contracts, for fixing the bellows fixed to the front or back of the bellows An end plate, a horizontal plate portion formed in substantially the same shape as the front or back of the horizontal portion of the bellows, one vertical plate portion continuing downward from one end of the horizontal plate portion, and the horizontal plate The other vertical plate part that continues downward from the other end of the part One insertion portion into which the one leg portion forming the bellows formed on the back surface of the one vertical plate portion is inserted, and the other leg portion forming the bellows formed on the back surface of the other vertical plate portion And the other insertion portion through which is inserted.

The second invention (the invention according to claim 2)
The present invention relates to a bellows, wherein the bellows fixing end plate is attached to at least a front and / or a back of the bellows.

The third invention (the invention according to claim 3)
The present invention relates to a bellows set, which is composed of a sheet body, and has a horizontal portion which is formed of a sheet body and has a crest portion and a valley portion formed alternately and expands and contracts, and a crest portion and a valley portion which extend downward from one end of the horizontal portion. And the other leg portion, which is formed alternately and expands and contracts, and the other leg portion that extends downward from the other end of the horizontal portion and extends and expands and contracts alternately with a mountain portion and a valley portion, Composed,
A bellows provided with a plurality of intermediate plates each having a peripheral end fixed to each of the horizontal portions, the ridges formed on one and the other leg portions, and the bellows or the bellows in a direction perpendicular to the direction of expansion and contraction. An end plate for fixing the bellows according to claim 1, which is fixed to the front and back surfaces of the bellows cut at an arbitrary position, and a fixing plate that sandwiches the front side or the rear side of the bellows with an intermediate plate together with these end plates. And a plurality of screws for fixing the fixing plate to a mechanical device with one end of the bellows and an end plate interposed therebetween.

A fourth invention (the invention according to claim 4)
In the third aspect, the intermediate plate includes:
Each of the end plates is formed with a through hole through which a screw is inserted, and the end plate is formed with a through hole at a position corresponding to the through hole formed in the intermediate plate. .

It is to be noted that the end plate constituting each of the above-mentioned inventions is provided if it has the structure described in claim 1.
It does not matter whether the metal material is bent or the resin material is molded. That is, the one and the other insertion portions constituting the end plate may be formed by bending a metal plate, or may be formed integrally with a horizontal plate portion or a vertical plate portion by a resin. Is also good. The one and the other insertion portions are necessarily formed on one and the other vertical plate portions as long as the one or the other leg portion constituting the bellows has a function of being inserted. The invention is not limited to this, and a plurality of insertion portions may be formed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an end plate according to an embodiment of the present invention and a bellows to which the end plate is attached will be described in detail with reference to the drawings.

First, the bellows 1 to which the end plate is attached will be described. As shown in FIG. 1, the bellows 1 has a front shape substantially shaped like a gate, and includes a sheet body (reference numerals are omitted) and an intermediate plate 2. The sheet body is made of synthetic leather, and has a horizontal portion 3 having a width formed in a direction perpendicular to the direction of expansion and contraction and alternately forming peaks 3a and valleys 3b in the direction of expansion and contraction. Of the horizontal portion 3 and the other leg 5 continued downward from the other end of the horizontal portion 3.
A ridge (a ridge and a valley formed on one leg are not shown) 5a and a valley 5b are formed in the one and other legs 4 and 5 in the direction of expansion and contraction, respectively. ing. Therefore, the above-mentioned horizontal portion 3, one leg portion 4 and the other leg portion 5 are respectively formed alternately with mountain portions 3a,
The expansion and contraction operation is performed by the 5a and the valleys 3b and 5b.

In the bellows 1 according to this embodiment, the above-described intermediate plates 2 are welded to positions corresponding to the peaks 3a and 5a, respectively. These intermediate plates 2 are integrally formed of a synthetic resin, and as shown in FIG.
A horizontal plate portion 6 whose upper end is welded to (the back surface of) the crest portion 3a formed at the bottom, one vertical plate portion 7 that is continuous downward from one end of the horizontal plate portion 6, and the horizontal plate portion 6 and the other vertical plate portion 8 that is continuous downward from the other end of the vertical plate portion 6, as shown in FIG.
One side of the one vertical plate portion 7 is welded to (a back surface of) a ridge 4a formed on one leg 4 constituting the bellows 1, and one side of the other vertical plate portion 8 constitutes the bellows 1. Is welded to (the back surface of) a ridge 5a formed on the other leg 4 to be formed. In addition, as shown in FIG. 2, through holes 6a and 6b through which screws to be described later are inserted are formed in the horizontal plate portion 6 constituting the large number of intermediate plates 2, and the lower end of the one vertical plate portion 7 is formed. Has the other vertical plate part 8
One protruding portion 7a protruding in the direction is formed, and the other protruding portion 8a protruding in the direction of the one vertical plate portion 7 is formed at the lower end of the other vertical plate portion 8.

Next, an end plate attached to the front and back of the bellows 1 having the above-described structure will be described. The end plate 10 according to this embodiment is formed of a metal material, and has substantially the same front shape as each of the intermediate plates 2 as shown in FIG. 1 or FIG. That is, this end plate 10
Is a horizontal plate portion 11 having substantially the same length as the length of the horizontal plate portion 6 constituting the intermediate plate 2 (the front surface width of the horizontal portion 3 constituting the bellows 1); It is continuous from one end of the plate portion 11 downward and has the same height as one leg portion 4 constituting the bellows 1, and the length and width of one vertical plate portion 7 constituting the intermediate plate 2. And one vertical plate portion 12 having substantially the same length and width, and continuing downward from the other end of the horizontal plate portion 11 and having the same height as one leg portion 4 constituting the bellows 1. And the other vertical plate portion 13 having the same length and width as the other vertical plate portion 8 constituting the intermediate plate portion 2. On the back side of the one vertical plate portion 12, one insertion portion 14 through which one vertical plate portion 7 constituting the intermediate plate 2 welded to the sheet member is inserted from below to above is formed. The other side plate hose of the other vertical plate portion 13 is formed with another insertion portion 15 through which the other vertical plate portion 8 constituting the intermediate plate 2 welded to the sheet member is inserted from below to above. I have.

The one insertion portion 14 is formed by bending one vertical plate portion 12 from one side to the back surface, and the height is higher than the height of the one vertical plate portion 12. It is slightly shorter, and has a width substantially the same as that of the one vertical plate portion 12. The other insertion portion 15 is bent from one side of the other vertical plate portion 13 to the back surface, and the height is slightly shorter than the height of the other vertical plate portion 13. And
The width is substantially the same size as the other vertical plate portion 13. That is, in the present embodiment, the lower ends of the one and the other insertion portions 14 and 15 are the same as the lower end positions of the one and the other vertical plate portions 12 and 13.
The upper end is closer to the bellows 1 than the upper end position of the horizontal plate portion 11.
Are located under the same length as the length from the peaks 3a, 5a to the valleys 3b, 5b. In addition, the horizontal plate portion 11 constituting the end plate 10 includes:
Through holes 11a and 11b are formed at positions corresponding to the two through holes 6a and 6b formed in the horizontal plate portion 6 constituting the intermediate plate 2, respectively.

Next, a linear motion device 20 to which the bellows 1 is fixed using the above-described end plate 10 will be described. In the present embodiment, the linear motion device 20 includes, as shown in FIG. 1, left and right support rails 21 and 22 each having a rail 21 a formed therein, a front support plate 23 and a rear support plate 24. And a motor bracket 25 facing the front side support plate 23. A drive motor 26 is fixed to the motor bracket 25, and a long drive screw 27 having a screw threaded on the outer peripheral surface is fixed to the drive motor 26. One end of the drive screw 27 is rotatably supported by the front support plate 23, and the other end is rotatably supported by the rear support plate 24. The driving screw 27 is provided with a moving body 28 that moves in the longitudinal direction of the driving screw 27 while being guided by the rail 21a. That is, in the linear motion device 20, the moving body 28 moves in the length direction of the driving screw 27 by the rotation of the driving screw 27 by the rotational driving of the driving motor 26. The left and right support rails 21 and
A guide rail 29 having a U-shaped cross section (the left guide rail is not shown) into which the distal ends of the one or the other protrusions 7a and 8a constituting the intermediate plate 2 are inserted is fixed to the outer surface of the intermediate plate 2. ing.

Next, a method of fixing the bellows 1 to the linear motion device 20 using the above-described end plate 10 will be described. First, the first adapter 30 is fixed to the upper surface of the front support plate 23 constituting the linear motion device 20 with a screw or the like (not shown), and the second adapter 31 is not shown on the upper surface of the back support plate 24. The first to third adapters 30, 31, and 32, which are fixed by screws or the like and further fixed to the upper surface of the moving body 28 by screws or the like (not shown), have the same height. It is a block body, and has the same length and width as the front support plate 23, the back support plate 24, or the moving body 28. Note that the first adapter 30 and the second
Screw holes 30a, 30b, 31a, 31a are formed at positions corresponding to the through holes 11a, 11b formed in the end plate 10, respectively. On the back surface, screw holes 32a, 3b are provided at positions corresponding to the through holes 11a, 11b.
2b, 32c and 32d are formed.

On the other hand, on the front of the bellows 1, the above-mentioned end plate 10 is inserted from below the bellows 1, and one of the vertical plate portions 7 of the intermediate plate 2 located on the front side of the bellows 1 is inserted into one insertion portion 14. The other vertical plate portion 8 is inserted into the other insertion portion 15, and attached to the front of the bellows 1. The end plate 10 is attached to the back of the bellows 1 in the same manner as described above. Then, an end plate 10 attached to the front of the bellows 1
By using the fixing plate 38, a part of the horizontal portion 3 constituting the bellows 1 is partially fixed to the fixing plate 38 and the end plate 10.
And is fixed to the first adapter 30 using the screws 35 shown in FIG. This fixing plate 38
Is formed into an elongated rectangular shape with a metal material, and has the same length as the width of the horizontal portion 3 forming the bellows 1 as shown in FIG. Two through-holes 38a and 38b, which have a width from the peak 3a to the valley 3b, and through which the screws 35 are inserted, are formed. That is, as shown in FIG. 5, the end plate 10 is connected to the first adapter 3.
0, the fixing plate 38 and the end plate 10 sandwich the sheet body forming the bellows 1 and the horizontal plate portion 6 of the intermediate plate 2 while holding the screw 3
Fix by 5 and 35.

The method of attaching the end plate 10 to the back of the bellows 1 whose front is fixed to the first adapter 30 and the method of fixing the end plate 10 to the front of the third adapter 32 are the same as those described above. The same, and at the same time, the bellows 1 with the end plate 10 attached between the third adapter 32 and the second adapter 31 respectively
Is fixed in the same manner as described above. By such a method, as shown in FIG. 5, the two bellows 1, 1 which expand and contract by the moving operation of the moving body 28 are fixed to the front side and the back side of the moving body 28 constituting the linear motion device 20.

As described above, when the bellows 1 is fixed to the linear motion device 20, the above-described method of attaching the end plate 10 to the front and back surfaces of the bellows 1 is as follows. And the other vertical plate part 1 constituting the intermediate plate 2 including a part of
This can be achieved by inserting 2 and 13. Therefore, it is possible to perform an extremely simple operation without using a double-sided adhesive tape as in the related art.

In the above embodiment, the end plate according to the present invention has two horizontal holes through which screws are inserted in the horizontal plate portion. However, these horizontal holes are not necessarily horizontal. It is not necessary to form only two through holes 41a, 41a in the horizontal plate portion 41 as in an end plate 40 shown in FIG.
b, and the lengths of the insertion portions 44 and 45 formed in the one and the other vertical plate portions 42 and 43 are slightly shortened.
One through hole 42a, 43a may be formed in the lower end side of 43. When such an end plate 40 is used, not only the fixed plate 38 described above but also one and the other vertical plate portions 42 and 43 are used.
Use two fixing plates (not shown) that correspond to the length and width

In addition, the above-described end plates 10 and 4
In the case of No. 0, one insertion portion 14, 15, 44, 45 is formed in each of the one and the other vertical plate portions. However, the insertion portion constituting the end plate according to the present invention is not necessarily one. Not limited to one, for example, FIG.
As shown in the end plate 50 shown in FIG.
The two insertion portions 54, 55, 52 are respectively inserted into one and the other vertical plate portions 52, 53 which are continued downward from both ends of
56 and 57 may be formed.

Further, in the above-described embodiment, the bellows 1 to which the above-described various end plates (the reference numerals are omitted) are formed by forming a large number of intermediate plates 2 corresponding to the respective peak portions 3a and 5a. Although the bellows to which the end plate according to the present invention is attached is not necessarily limited to such a bellows 1, the above-mentioned end plate is attached to a bellows manufactured conventionally, The end plate may be fixed to the linear motion device with screws together with the fixing plate.

However, according to the bellows 1 described in the present embodiment, not only the shape retention of the whole bellows 1 can be maintained by the respective intermediate plates 2, but also the middle and the rear sides of the bellows 1 always have the intermediate shape. Since the plate 2 is located, the bellows 1 can be fixed to the linear motion device 20 or the like more simply, quickly and firmly by using the end plate 1 and the fixing plate 38 described above.

Since the bellows 1 is composed of the sheet and the intermediate plate 2 as described above,
An operator can easily cut the bellows 1 at an arbitrary position. That is, it is extremely easy to manufacture the long bellows 1 and cut the bellows 1 to a predetermined length in consideration of the moving stroke and the like of a moving body constituting a machine tool such as a linear motion device for fixing. Since the intermediate plate 2 is always located at or near the cut position, and since the through holes 6a, 6b are formed in all the intermediate plates 2 in the bellows 1, the screws 35, 35 are inserted. It is not necessary to form a through hole. Therefore, for example, one bellows 1 sufficient for fixing to the linear motion device 20 described above, four end plates 10, four fixing plates 38, and eight screws 35 constitute a bellows set, which is not shown. It is possible to adopt a method of selling the product in a packaging bag or the like. A user who has purchased such a bellows set cuts the bellows 1 to a length (moving stroke of the moving body or the like) corresponding to the machine tool such as the linear motion device 20 owned by the user, and the end plate 10 and the fixing plate It can be easily and quickly fixed to the linear motion device 20 by using the screw 38 and the screws 35. The screws constituting the bellows 1 are provided on the sheet body.
Is not formed, but the hole can be easily formed by using, for example, an awl.

[0027]

As is clear from the above description of the embodiment of the present invention, in the end plate according to the present invention (the invention according to claim 1), a bellows is formed on the back surface of one of the vertical plate portions. Since one insertion portion through which one leg is inserted is formed, and the other insertion portion through which the other leg constituting the bellows is formed is formed on the back surface of the other vertical plate portion, the bellows is formed. Can be easily and quickly attached to the front or back of the vehicle.

Further, the second invention (the invention according to claim 2)
In the bellows according to the above, since the above-mentioned end plate is attached to the front and / or the back of the bellows in advance, the bellows can be fixed more quickly by a mechanical device such as a linear motion device.

Further, the third invention (the invention according to claim 3)
In the bellows set according to the above, since a set of bellows composed of a number of intermediate plates each having a peripheral end fixed to each mountain, together with an end plate, a fixing plate, and a screw, is set.
The user can cut the bellows to a length corresponding to the machine to be fixed and fix the bellows to the linear motion device using the end plate, the fixing plate or the like.

In particular, the fourth invention (the invention according to claim 4)
Then, since the through holes through which screws are inserted are formed in the intermediate plate, the user can cut any part of the bellows, and the intermediate plate with all the through holes is formed on the front and back of the bellows. Located in. Therefore, the operation of fixing the bellows to the machine tool can be further simplified.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a bellows, an end plate, and the like fixed to a linear motion device.

FIG. 2 is a front view showing an intermediate plate which is a component of the bellows.

FIG. 3 is a bottom view of the bellows.

FIG. 4 is a perspective view showing an end plate and a fixing plate.

FIG. 5 is a plan sectional view showing a state in which the bellows is fixed to the linear motion device.

FIG. 6 is a rear view showing another example of the end plate.

FIG. 7 is a rear view showing still another example of the end plate.

FIG. 8 is an exploded perspective view showing a conventional end plate and bellows.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bellows 2 Intermediate plate 3 Horizontal part 3a Peak part 3b Valley part 4 One leg part 4a Peak part 4b Valley part 5 The other leg 5a Peak part 5b Valley part 6 Horizontal plate part 7 One vertical plate part 8 The other vertical part Plate part 10 End plate 11 Horizontal plate part 12 One vertical plate part 13 The other vertical plate part 14 One insertion part 15 The other insertion part 35 Screw 38 Fixing plate 40 End plate 41 Horizontal plate part 42 One vertical plate part 43 The other vertical plate portion 44 One insertion portion 45 The other insertion portion 50 End plate 51 Horizontal plate portion 52 One vertical plate portion 53 The other vertical plate portion 54, 55 One insertion portion 56, 57 The other insertion portion

Claims (4)

[Claims] 1. A horizontal portion in which a mountain portion and a valley portion are formed alternately and extend and contract, and one leg which is formed continuously from one end of the horizontal portion and extends downward and expands and contracts alternately in a mountain portion and a valley portion. Part, the other part of the horizontal part is continuous downward from the other end, the crest and the valley are alternately formed and provided with the other leg that expands and contracts, for fixing the bellows fixed to the front or back of the bellows An end plate, a horizontal plate portion formed in substantially the same shape as the front or back of the horizontal portion of the bellows, one vertical plate portion continuing downward from one end of the horizontal plate portion, and the horizontal plate The other vertical plate portion continuing downward from the other end of the portion, one insertion portion through which one leg portion formed on the back surface of the one vertical plate portion and forming a bellows is inserted, and the other vertical plate portion The bellows formed on the back of the part End plate for bellows fixed to a square and the other of the insertion portion leg portion is inserted in, that it comprises an characterized. 2. A bellows characterized in that the bellows fixing end plate is attached to at least the front and / or the back of the bellows. 3. A horizontal portion which is formed of a sheet body and has a crest portion and a valley portion formed alternately and expands and contracts, and a crest portion and a valley portion formed alternately from one end of the horizontal portion and downward. The other leg portion, which is formed of resin, and the other leg portion, which extends downward and extends from the other end of the horizontal portion, and has a crest portion and a valley portion that are alternately formed to extend and contract; A plurality of intermediate plates having peripheral ends fixed to each mountain formed on one and the other leg; and a bellows comprising: a bellows or any position in a direction orthogonal to the direction of expansion and contraction of the bellows. The bellows-fixing end plate according to claim 1, which is fixed to the front and back surfaces of the bellows cut in step, a fixing plate that sandwiches the front or rear side of the bellows with an intermediate plate together with these end plates, The fixing plate is sandwiched between one end of the bellows and the end plate. Bellows set, wherein a plurality of screws that secure the instrument, that is housed. 4. A through hole through which screws are inserted is formed in the intermediate plate, and a through hole is formed in the end plate at a position corresponding to the through hole formed in the intermediate plate. The bellows set according to claim 3, wherein the bellows set is formed.