JP2023154275A - Bevel processing machine, jig and jig set - Google Patents

Abstract

To provide a bevel processing machine which can easily and reliably perform bevel processing in the state that an H-shaped steel is fixed.SOLUTION: A bevel processing machine, which can perform bevel processing for an H-shaped steel S having a wide flange at an end part thereof, comprises: a fixation mechanism which can fix the flange; and a processing part 10 which performs bevel processing in the state that the H-shaped steel is fixed. The fixation mechanism has: a placement part on which a lower end of a wide part Fa of the flange can be placed; a pressing member 16 which is arranged above the placement part, can press an upper end of the wide part Fa downward; and a contact member 14 which contacts the upper end of the flange other than the wide part Fa.SELECTED DRAWING: Figure 5

Description

The present invention relates to a beveling machine, a jig, and a jig set.

Shaped steel such as H-shaped steel is used for columns, beams, girders, etc. of steel structures. Shaped steel is sometimes subjected to cutting processes such as beveling and scalloping for the purpose of improving welding strength and workability during construction. An example of a machine for performing such processing is a beveling machine. A beveling machine performs beveling on a flange of a shaped steel using a bevel cutter or the like while the end of the shaped steel is fixed at a predetermined cutting position. For example, Patent Document 1 describes a beveling machine including an upper clamp that comes into contact with the upper end of a flange of an H-shaped steel and presses the H-shaped steel onto a receiving surface.

Japanese Patent Application Publication No. 6-8083

However, some H-section steels have flange widths that are not constant, and the height of the upper end of the flange changes along the longitudinal direction of the section steel. If the technique of Patent Document 1 is used for such an H-shaped steel, it is difficult to enlarge the contact area between the upper clamp and the flange, so there is a possibility that the H-shaped steel cannot be securely fixed. Furthermore, there is a risk that machining accuracy may be reduced due to vibrations of the H-shaped steel during bevel machining.

The present invention was made based on such circumstances, and an object of the present invention is to provide a beveling machine that can easily and reliably perform beveling with an H-section steel fixed.

A beveling machine according to one aspect of the present invention, which has been made to solve the above problems, is a beveling machine that can bevel an H-section steel having a wide flange at the end, A fixing mechanism that can fix the flange, and a processing mechanism that performs bevel processing with the H-beam fixed, the fixing mechanism being a mounting mechanism that can place the lower end of the wide portion of the flange. a pressing member disposed above the mounting portion and capable of pressing the upper end of the wide portion downward; and an abutting member that abuts the upper end of the flange other than the wide portion.

The beveling machine according to one aspect of the present invention can easily and reliably perform beveling with the H-section steel fixed.

FIG. 1 shows a section steel that is beveled by a beveling machine according to an embodiment of the present invention. FIG. 2 is a schematic plan view of a beveling machine according to an embodiment of the present invention. FIG. 3 is a schematic front view of the beveling machine shown in FIG. 2. FIG. 4 is a schematic front view of the beveling machine of FIG. 2 in a state in which the section steel of FIG. 1 is fixed. FIG. 5 is a partial perspective view of the beveling machine of FIG. 4, with the web portion of the H-section steel omitted. FIG. 6 is a schematic cross-sectional view taken along the line VI-VI of the beveling machine shown in FIG. FIG. 7 is a left side view of the beveling machine of FIG. 4. FIG. 8 is an enlarged left side view of the beveling machine shown in FIG. 4. FIG.

[Description of embodiments of the present invention]
First, embodiments of the present invention will be listed and explained.

A beveling machine according to one aspect of the present invention is a beveling machine capable of bevelling an H-section steel having a wide flange at an end, and includes a fixing mechanism capable of fixing the flange. , a processing mechanism that performs bevel processing with the H-shaped steel fixed; The flange has a pressing member that can press the upper end of the wide portion downward, and an abutting member that abuts the upper end of the flange other than the wide portion (hereinafter referred to as the central portion).

The beveling machine fixes the H-section steel in the vertical direction by causing the pressing member to press downwardly the wide portion of the flange placed on the mounting portion. Moreover, the vibration of the central portion of the flange can be suppressed by the contact member contacting the upper end of the central portion of the flange. For this reason, the beveling machine can easily and reliably perform beveling even if the H-beam has a wide flange at its end while the H-beam is fixed.

It is preferable that the abutment member is vertically adjustable. Since the position of the abutting member is vertically adjustable in this manner, the abutting member can be appropriately brought into contact with the upper end of the central portion in accordance with the height of the upper end of the central portion.

Preferably, the fixing mechanism has a lower auxiliary member attached to the lower end of the wide portion, and the lower auxiliary member has a support portion that extends in the axial direction and supports the lower end of the wide portion. Generally, the mounting section of a beveling machine may be configured with a roller conveyor or the like so that the position of the H-section steel can be easily adjusted. In such a case, if the axial length of the lower end of the wide portion is small, there is a possibility that a sufficient contact area between the lower end of the wide portion and the mounting portion cannot be ensured. On the other hand, as described above, since the fixing mechanism includes the lower auxiliary member, the lower end of the wide portion can be stably placed on the placement portion via the lower auxiliary member.

Preferably, the pressing member presses the upper end of the wide portion using a hydraulic cylinder. In this manner, the pressing member presses the upper end of the wide portion using the hydraulic cylinder, so that the H-shaped steel can be fixed more reliably.

It is preferable to further include a height-adjustable support stand for supporting the H-shaped steel and transporting it toward the placing section. By further providing a support stand in this manner, the operation for transporting the shaped steel to the processing position can be easily carried out. Further, since the height of the support base is adjustable, the H-section steel can be supported at an appropriate height corresponding to the shape of the H-section steel.

It is preferable that the device further includes a guide rail laid toward the placement section, and the support base is attached so as to be movable along the guide rail. By further providing a guide rail laid toward the above-mentioned placement section in this manner, the work for transporting the above-mentioned H-shaped steel to the processing position can be performed more easily.

A jig according to another aspect of the present invention is a jig that is attached to the upper end of the flange in order to perform bevel processing on an H-section steel having a wide flange at the end, the jig being attached to the upper end of the flange. The flange includes a base portion placed on the upper end of the portion, and a contact portion fixed to the base portion and abutting the upper end of the flange other than the wide portion (hereinafter referred to as the center portion).

The jig can fix the shaped steel in the vertical direction by pressing the base portion downward when performing beveling on the shaped steel. Furthermore, the contact portion contacts the upper end of the central portion of the flange, thereby suppressing vibration of the central portion of the flange. Therefore, the jig can easily and reliably fix the H-section steel when beveling the H-section steel having a wide flange at the end.

A jig according to still another aspect of the present invention is a jig that is attached to the lower end of the flange in order to perform beveling on an H-section steel having a wide flange at the end, the jig being attached to the lower end of the flange. A support portion is provided that extends in the axial direction and supports the lower end of the wide portion of the flange.

As mentioned above, when the mounting section of the beveling machine is composed of a roller conveyor or the like, if the axial length of the lower end of the wide section is small, the lower end of the wide section may come into contact with the mounting section. There is a possibility that a sufficient area cannot be secured. On the other hand, the jig extends in the axial direction of the flange and supports the lower end of the wide portion of the flange, so that the lower end of the wide portion is stably placed on the mounting portion. I can do it.

A jig set according to yet another aspect of the present invention includes a jig attached to the upper end of the above-mentioned flange and a jig attached to the lower end of the above-mentioned flange.

This jig set includes a jig that is attached to the upper end of the above-mentioned flange and a jig that is attached to the lower end of the above-mentioned flange, so it is useful when performing beveling on H-beam steel that has a wide flange at the end. In addition, the H-section steel can be easily and reliably fixed.

In this specification, "lower" means vertically downward, and "upper" means the opposite side. In addition, "lower end" means the lower end when the width direction of the flange is aligned with the up-down direction, and "upper end" means the upper end when the width direction of the flange is aligned with the up-down direction, "Axial direction" means the longitudinal direction of the section steel.

Embodiments of the present invention will be described below with appropriate reference to the drawings.

In describing the beveling machine, first, an H-beam S, which is an example of an H-beam processed by the beveling machine, will be described with reference to FIG. 1.

[H-beam steel]
The H-section steel S in FIG. 1 has a pair of wide flanges F at its ends. The pair of flanges F are plate-shaped members each extending in the axial direction of the H-section steel S as a longitudinal direction. The surfaces of the pair of flanges F are parallel and opposite to each other. Further, the web W of the H-section steel S is a rectangular plate-like member, and is spanned between a pair of flanges F such that its short side is perpendicular to the opposing surfaces of the pair of flanges F. There is.

Each flange F has a wide portion (wide portion Fa) at both ends in the axial direction where the width (the length in the lateral direction of the flange F) is maximum. Moreover, the flange F has a central portion (narrow width portion Fb) smaller in width than the wide portion Fa between the wide portions Fa. The widths of the wide portion Fa and the narrow portion Fb are constant along the axial direction. The width of the narrow portion Fb is smaller than the width of the wide portion Fa from both ends of the flange F in the lateral direction.

[Bevel processing machine]
The beveling machine 1 shown in FIGS. 2 to 8 performs beveling on a wide portion Fa of a flange F of an H-beam S.

The beveling machine 1 includes a pair of processing sections 10 and 101 for beveling an H-section steel S. Each of the pair of processed parts 10 and 101 has a placing part (a first placing surface 121a and a second placing surface 193a, which will be described later), on which the lower end of the wide part Fa of the flange F is placed. The beveling machine 1 also includes a conveyance section 20 for conveying the H-beam S toward the above-described placement section of the machining sections 10 and 101. The pair of processing sections 10 and 101 are arranged with a distance in the transport direction (X-axis direction) of the H-section steel S. While the processing section 10 is fixed, the processing section 101 is movable toward or away from the processing section 10.

Before explaining the details of the configuration of the beveling machine 1, the procedure until the H-section steel S is placed in the pair of processing sections 10 and 101 will be explained with reference to FIGS. 2 to 4.

First, the H-section steel S is placed between the pair of processing sections 10 and 101, and is supported by a support stand 22, which will be described later, of the transport section 20 (FIGS. 2 and 3). The H-section steel S is placed on the support stand 22 so that the axial direction coincides with the above-mentioned transport direction and the width direction of the flange F coincides with the vertical direction (Z-axis direction). By placing the H-shaped steel S in this manner, the wide portions Fa at both axial ends of the flange F are directed toward the pair of processed portions 10 and 101.

Next, before the H-shaped steel S is conveyed and placed on the above-mentioned placement section of the processing section 10, 101, a contact member 14 and a lower auxiliary member 18, which will be described later, perform beveling of the flange F. They are respectively attached to the wide part Fa. The contact member 14 is attached to the upper end of the wide portion Fa, and the lower auxiliary member 18 is attached to the lower end of the wide portion Fa.

After the abutting member 14 and the lower auxiliary member 18 are attached, the H-beam S is supported by the support stand 22 and transported along the transport direction toward the placement section of the processing section 10 . Here, as a method of transporting the H-shaped steel S, for example, a method of manually sliding the H-shaped steel S on the support stand 22 may be used. When the wide portion Fa on one side in the axial direction of the H-section steel S reaches the above placement portion of the processing section 10, the lower end of this wide portion Fa is placed on the above placement portion of the processing section 10 via the lower auxiliary member 18. be placed.

Furthermore, after placing the wide portion Fa on the above-mentioned placement section, the processing section 101 is brought closer to the processing section 10. When the above mounting portion of the processing section 101 reaches the wide section Fa on the other axial side of the H-section steel S, the lower end of this wide section Fa is placed on the above mounting section of the processing section 101 via the lower auxiliary member 18. be placed. As a result, the wide portions Fa at both ends in the axial direction of the H-beam S are placed on the placement portions of the processed portions 10 and 101. Thereafter, the H-beam S is adjusted so that the ends of the wide parts Fa at both ends in the axial direction are placed at predetermined cutting positions, and then fixed by a pair of processed parts 10 and 101, as shown in FIG. Processed.

<Transport section>
The conveyance section 20 includes a support stand 22 for supporting the H-shaped steel S and conveying it toward the above-mentioned placement section of the processing section 10, and a guide laid along the above-mentioned conveyance direction toward the above-mentioned placement section. It has a rail 21. The support stand 22 is attached to the guide rail 21 so as to be movable along the guide rail 21. Since the support stand 22 is movable along the transport direction, the position of the support stand 22 can be easily adjusted in accordance with the axial length and center of gravity of the H-section steel S when the H-section steel S is transported. It can be adjusted to Further, the processing section 101 is also attached to the guide rail 21 so as to be movable along the guide rail 21.

(guide rail)
The guide rails 21 are configured as a pair of rails that are arranged parallel to the transport direction and spaced apart from each other in a direction perpendicular to the transport direction (Y-axis direction). The support stand 22 and the processing section 101 are movably mounted on the pair of rails. Although not particularly limited, the pair of rails each have, for example, a protrusion portion having a rectangular cross section that extends along the conveyance direction and protrudes upward.

The lower limit of the interval between the pair of rails (the protrusion) is preferably 1500 mm, more preferably 2000 mm. On the other hand, the upper limit of the distance between the pair of rails is preferably 3000 mm, more preferably 2500 mm. If the distance between the pair of rails is less than the lower limit, the H-section steel S will be stably supported by the support base 22 attached to the pair of rails, such as when the width of the web W of the H-section steel S is large. There is a possibility that it cannot be done. On the other hand, if the distance between the pair of rails exceeds the upper limit, the support base 22 attached to the pair of rails may become too large and the efficiency of transporting the H-section steel S may decrease.

The lower limit of the longitudinal length of the pair of rails is preferably 16 m, more preferably 20 m. On the other hand, the upper limit of the longitudinal length of the pair of rails is preferably 30 m, more preferably 25 m. If the length of the pair of rails in the longitudinal direction is less than the lower limit, there is a possibility that the H-section steel S cannot be transported appropriately when the length of the H-section steel S in the axial direction is large. On the other hand, if the length in the longitudinal direction of the pair of rails exceeds the upper limit, the transport distance of the H-section steel S will be too long, and the efficiency of transporting the H-section steel S may decrease.

(Support stand)
The support stand 22 is a substantially rectangular stand in plan view. In this embodiment, the support stand 22 is arranged so that its transversal direction coincides with the above-mentioned transport direction and its longitudinal direction coincides with the above-mentioned orthogonal direction in plan view. The support stand 22 supports the lower ends of the narrow portions Fb of the pair of flanges F. In order to stably support the H-shaped steel S, it is preferable that a plurality of support stands 22 are arranged along the above-mentioned transport direction. The support stand 22 has a support part at the top and a rail engagement part 221 at the bottom.

The support section has a plurality of rollers at the top. Each roller is arranged so that its longitudinal direction faces the above-mentioned orthogonal direction and is substantially horizontal. These rollers form a substantially horizontal support surface 222 for supporting the lower end of the narrow portion Fb. In this way, since the support surface 222 is formed by the plurality of rollers, it is possible to easily slide the H-section steel S in the conveyance direction on the support surface 222. transport becomes easier.

The lower limit of the longitudinal length of the roller is preferably 1500 mm, more preferably 2000 mm. On the other hand, the upper limit of the longitudinal length of the roller is preferably 3000 mm, more preferably 2500 mm. If the length in the longitudinal direction of the roller is less than the lower limit, there is a possibility that the support base 22 cannot stably support the H-section steel S, such as when the width of the web W of the H-section steel S is large. On the other hand, if the length of the roller in the longitudinal direction exceeds the upper limit, the support base 22 may become too large and the efficiency of the work of transporting the H-beam S may be reduced. Note that the length of the support surface 222 in the orthogonal direction matches the length of the roller in the longitudinal direction.

Preferably, the support surface 222 is height adjustable. The support surface 222 supports the lower end of the narrow portion Fb so that the height of the lower end of the portion of the H-section steel S to be beveled (wide portion Fa) substantially matches the height of the placement portion. In other words, as shown in FIGS. 3 and 4, the support surface 222 is higher than the mounting portion of the narrow portion Fb by the difference between the height of the lower end of the wide portion Fa and the height of the lower end of the narrow portion Fb. Support the bottom end. Therefore, since the support surface 222 of the support stand 22 is height adjustable, it can be adjusted to an appropriate height corresponding to the difference in height between the lower end of the wide part Fa and the lower end of the narrow part Fb. It can support H-section steel S. Thereby, the H-section steel S can be supported at an appropriate height corresponding to various shapes of the flange F. Examples of a method for adjusting the height of the support surface 222 include a press cylinder that expands and contracts in the vertical direction while supporting the support surface 222.

The rail engaging portion 221 supports the upper part of the support stand 22 and engages with the pair of rails so that the support stand 22 can move along the transport direction. At the lower end of the rail engaging portion 221, a pair of concave portions having a rectangular cross section and being concave downward and capable of engaging with the protruding portions of the pair of rails, for example, are formed.

<Processing section>
The processing section 10 includes a fixing mechanism that can fix the flange F, and a processing mechanism that performs bevel processing with the H-section steel S fixed.

As shown in FIGS. 2 to 8, the fixing mechanism has a lower vice 19 for clamping and fixing the lower part of the wide part Fa of the flange F. The lower vice 19 has a second placement surface 193a on which the lower end of the wide portion Fa is placed. The fixing mechanism also includes a pressing member 16 disposed above the second mounting surface 193a and capable of pressing the upper end of the wide part Fa downward, and an abutting member 14 that abuts the upper end of the narrow part Fb of the flange F. and a lower auxiliary member 18 attached to the lower end of the wide portion Fa.

On the other hand, the processing mechanism has a cutting header 17 for performing bevel processing on the wide portion Fa.

The processing section 10 includes a mounting table 12 on which the H-shaped steel S is placed, a support frame 13 that supports the pressing member 16, the cutting header 17, and the lower vice 19, the above-mentioned fixing mechanism, the above-mentioned processing mechanism, the mounting table 12, and It further includes a housing 11 that houses a support frame 13.

The processing section 10 includes a pair of the fixing mechanism, the processing mechanism, and a support frame 13 spaced apart from each other in a direction orthogonal to the conveying direction of the H-shaped steel S. The housing 11 houses the pair of fixing mechanisms, the processing mechanism, and the support frame 13. As described above, since the processing section 10 is provided with a pair of the fixing mechanism, the processing mechanism, and the support frame 13 at a distance in the orthogonal direction, the pair of flanges F of the H-section steel S can be beveled at the same time. can.

In the conveyance direction, the processing section 101 that is opposed to the processing section 10 is provided with an engagement structure at its lower end that engages with the guide rail 21 so that it can move along the guide rail 21 . This engagement structure is configured, for example, as a pair of downwardly recessed recesses with a rectangular cross section that can engage with the protrusion of the guide rail 21 . The configuration of the processing section 101 can be the same as that of the processing section 10 except for the above-mentioned engagement structure. Each component of the processing section 101 other than the above-mentioned engagement structure is arranged in line symmetry with each component of the processing section 10 with a straight line parallel to the orthogonal direction as an axis. The configuration of the processing section 10 will be described in detail below.

(Case)
As shown in FIGS. 2 and 3, the housing 11 includes a base portion 111, four pillar portions 112, two first beam portions 113, and a second beam portion 114. The base portion 111 has a generally rectangular upper surface in plan view surrounded by an edge along the conveyance direction and an edge along the orthogonal direction. The column portion 112 has a substantially rectangular cross section. The four pillar parts 112 are erected at the four corners of the upper surface of the base part 111. That is, the four pillar parts 112 are configured in two pairs, each pair being two pillar parts 112 that are erected at a distance in the transport direction. The two first beam parts 113 are placed horizontally on the pair of pillar parts 112, respectively. The second beam portion 114 is spanned between the two first beam portions 113 along the orthogonal direction.

The height (vertical length) of the base portion 111 can be, for example, 400 mm or more and 600 mm or less.

The lower limit of the distance between the inner surfaces of the pair of pillars 112 facing in the orthogonal direction and the inner surfaces of the other pair of pillars 112 facing in the orthogonal direction is preferably 1500 mm, more preferably 2000 mm. On the other hand, the upper limit of the above distance is preferably 3000 mm, more preferably 2500 mm. If the above-mentioned interval is less than the above-mentioned lower limit, there is a possibility that it will be difficult to convey the H-section steel S into the housing 11, such as when the width of the web W of the H-section steel S is large. On the other hand, if the above-mentioned interval exceeds the above-mentioned upper limit, there is a possibility that the casing 11 is too large than the H-section steel S, and the working efficiency for adjusting the position of the H-section steel S in the above-mentioned orthogonal direction decreases.

The lower limit of the distance between the upper surface of the base portion 111 and the lower surface of the second beam portion 114 is preferably 2500 mm, more preferably 3000 mm. On the other hand, the upper limit of the above distance is preferably 4000 mm, more preferably 3500 mm. If the above-mentioned interval is less than the above-mentioned lower limit, there is a possibility that a sufficient space for arranging the pressing member 16 and the cutting header 17 within the housing 11 cannot be secured. On the other hand, if the above-mentioned interval exceeds the above-mentioned upper limit, there is a possibility that the housing 11 is too large and compresses the space in which the beveling machine 1 is stored.

(Support frame)
As shown in FIG. 6, the support frame 13 is a columnar member with a substantially rectangular cross section that stands between the base portion 111 and the second beam portion 114 in the vertical direction. A pair of support frames 13 are provided at a distance in the orthogonal direction. Each support frame 13 supports a pressing member 16, a cutting header 17, and a lower vice 19.

Of the pair of support frames 13 , the support frame 13 on the Y-axis negative direction side (hereinafter referred to as the fixed side) is fixed to the second beam portion 114 . On the other hand, of the pair of support frames 13, the support frame 13 on the Y-axis positive direction side (hereinafter referred to as the movable side) is attached to the second beam portion 114 so as to be movable along the direction perpendicular to the transport direction. In other words, the movable support frame 13 is movable toward or away from the fixed support frame 13. By making one side of the support frame 13 movable in this way, the H-shaped steel S is attached to the support frame 13 on the movable side in accordance with the width of the web W in the transverse direction (width of the web W). The positions of the pressing member 16, cutting header 17, and lower vice 19 can be adjusted in the orthogonal direction.

In the processing section 10, for example, after the flange F disposed on the fixed side is fixed by the above-mentioned fixing mechanism on the fixed side, the support frame 13 on the movable side is adjusted in the orthogonal direction, and then the flange F disposed on the fixed side is fixed by the above-mentioned fixing mechanism on the movable side. The flange F arranged on the movable side can be further fixed.

(Placement stand)
The mounting table 12 is a substantially rectangular table in plan view that is placed on the base portion 111 . In the present embodiment, the mounting table 12 is arranged so that its transverse direction coincides with the above-mentioned transport direction and its longitudinal direction coincides with the orthogonal direction when viewed from above. As shown in FIGS. 3 and 5, the mounting table 12 is arranged between the support frame 13 and the support stand 22 and adjacent to the support frame 13 in the above-mentioned transport direction.

The mounting table 12 has a plurality of rollers 121 on its top surface. Each roller 121 is arranged so that its longitudinal direction faces the above-mentioned orthogonal direction and is substantially horizontal.

The plurality of rollers 121 form a substantially horizontal first mounting surface 121a. As described above, after the H-beam S is supported by the support stand 22 and transported to the first mounting surface 121a along the transport direction, the wide portion Fa on one side in the axial direction of the H-beam S is transferred to the first mounting surface 121a. It is placed on the placement surface 121a. This wide portion Fa is conveyed from the first mounting surface 121a along the above-mentioned conveyance direction toward a cutting position to be described later. Since the plurality of rollers 121 form the substantially horizontal first mounting surface 121a, the H-beam S placed on the first mounting surface 121a can be easily moved to the cutting position along the conveyance direction. Can be transported.

The lower limit of the longitudinal length of the roller 121 is preferably 1500 mm, more preferably 2000 mm. On the other hand, the upper limit of the longitudinal length of the roller 121 is preferably 3000 mm, more preferably 2500 mm. If the length of the roller 121 in the longitudinal direction is less than the above-mentioned lower limit, there is a possibility that the H-section steel S cannot be placed on the mounting table 12 when the width of the web W of the H-section steel S is large. Conversely, if the length of the roller 121 in the longitudinal direction exceeds the above upper limit, the support base 22 will be too large than the H-section steel S, and the working efficiency for adjusting the position of the H-section steel S in the above-mentioned orthogonal direction will decrease. There is a risk. Note that the length of the first mounting surface 121a in the orthogonal direction corresponds to the length of the roller 121 in the longitudinal direction.

The lower limit of the height of the first mounting surface 121a from the floor (the sum of the vertical lengths of the mounting table 12 and the base portion 111) is preferably 1000 mm, and more preferably 1200 mm. On the other hand, the upper limit of the height of the first mounting surface 121a is preferably 1800 mm, more preferably 1600 mm. If the height of the first mounting surface 121a is less than the above-mentioned lower limit, for example, when manually transporting the H-section steel S, there is a risk that work efficiency will decrease due to the low position of the H-section steel S. On the other hand, if the height of the first mounting surface 121a exceeds the above upper limit, for example, when manually transporting the H-shaped steel S, there is a risk that work efficiency will decrease due to the high position of the H-shaped steel S. .

(cutting header)
As shown in FIGS. 5 and 7, the cutting header 17 is vertically movably attached to the side surface of the support frame 13 that faces the opposite side of the mounting table 12 in the transport direction (the side surface that faces the negative direction of the X-axis). .

The cutting header 17 is equipped with a bevel cutter so as to protrude from the cutting header 17 toward the inner side of the support frame 13 (in the case of the fixed support frame 13, on the side facing the Y-axis positive direction). By moving the attached groove cutter up and down together with the cutting header 17, a groove can be formed at the end of the wide part Fa of the flange F. The position of the groove cutter attached to the cutting header 17 in the transport direction means the cutting position in the transport direction. Moreover, the cutting position in the orthogonal direction is adjusted by expanding and contracting the groove cutter in the orthogonal direction.

The shapes of the cutting header 17 and the groove cutter can be similar to the shapes of the known cutting header 17 and groove cutter. Further, the cutting header 17 may be equipped with, for example, a scallop cutter, a drive cutter, etc. in addition to the groove cutter described above.

(lower vise)
As shown in FIGS. 7 and 8, the lower vice 19 is attached to the inner surface of the support frame 13. The lower vice 19 is arranged between the mounting table 12 and the cutting header 17 in the conveyance direction when viewed from the front. The lower vice 19 includes a fixed vice 191, a movable vice 192, and a roller 193.

The fixed vice 191 has an abutment surface 191a that is spaced apart from the inner surface of the support frame 13 in the orthogonal direction. The contact surface 191a extends in the vertical direction and the above-mentioned transport direction. The contact surface 191a faces the inner surface of the support frame 13. The fixed vice 191 includes, for example, a beam portion extending from the inner surface of the support frame 13 in the above-described orthogonal direction, and a fixed abutment portion extending upward from the beam portion and having an abutment surface 191a. That is, the fixing vise 191 is configured to have a substantially L-shape, for example, when viewed from the side.

The movable vice 192 is disposed between the inner surface of the support frame 13 and the fixed abutting portion. The movable vice 192 has a movable contact portion that can move toward or away from the contact surface 191a. When adjusting the position of the wide part Fa of the flange F in accordance with the cutting position, the wide part Fa of the flange F is located between the fixed abutting part of the fixed vise 191 and the movable abutting part of the movable vise 192. will be placed in The wide portion Fa of the flange F whose position has been adjusted in accordance with the cutting position is clamped and fixed in the thickness direction (the orthogonal direction) by the movable contact portion approaching the contact surface 191a.

The movable vise 192 is rotatably attached to the beam portion of the fixed vise 191, for example. Furthermore, the movable vice 192 has, for example, a rotation fulcrum for the beam at the lower part, and the movable abutment part at the upper part, which moves toward or away from the abutment surface 191a as the movable vice 192 rotates.

A plurality of rollers 193 are provided, for example, so as to span between the inner surface of the support frame 13 and the contact surface 191a. The roller 193 is arranged so that its longitudinal direction faces the above-mentioned orthogonal direction and is substantially horizontal.

The plurality of rollers 193 form a substantially horizontal second mounting surface 193a. The second mounting surface 193a is flush with the first mounting surface 121a. As described above, the wide portion Fa on one side in the axial direction of the H-section steel S is transported from the first mounting surface 121a along the transport direction, and is further placed on the second mounting surface 193a. However, when beveling the pair of wide parts Fa on one side in the axial direction at the same time, after the support frame 13 on the movable side is adjusted in the orthogonal direction together with the lower vise 19, the pair of wide parts Fa are placed on the second placement surface 193a of the lower vice 19 on the fixed side and the second placement surface 193a of the lower vice 19 on the movable side, respectively. Since the second mounting surface 193a is flush with the first mounting surface 121a, the wide portion Fa can be easily mounted on the second mounting surface 193a. Further, the position of the wide portion Fa placed on the second placement surface 193a is adjusted in accordance with the cutting position. As described above, by forming the substantially horizontal second mounting surface 193a by the plurality of rollers 193, the position of the H-beam S placed on the second mounting surface 193a is cut along the conveyance direction. Can be easily adjusted to position.

The fixed contact portion and the movable contact portion protrude upward from the second placement surface 193a so that the wide portion Fa placed on the second placement surface 193a can be clamped and fixed.

The lower limit of the longitudinal length of the roller 193 is preferably 70 mm, more preferably 80 mm. On the other hand, the upper limit of the longitudinal length of the roller 193 is preferably 100 mm, more preferably 90 mm. If the length in the longitudinal direction of the roller 193 is less than the above lower limit, there is a possibility that the wide part Fa cannot be placed between the fixed vise 191 and the movable vise 192 when the thickness of the flange F of the H-beam S is large. . Conversely, if the longitudinal length of the roller 193 exceeds the upper limit, the contact surface 191a will be too far away from the support frame 13, making it difficult to arrange the wide portion Fa at the cutting position of the groove cutter in the orthogonal direction. There is a risk. Note that the length of the second mounting surface 193a in the above-mentioned orthogonal direction matches the length of the roller 193 in the longitudinal direction.

(Lower auxiliary member)
As shown in FIGS. 5 and 6, the lower auxiliary member 18 includes a lower auxiliary member main body 181 and a fixing plate 182. The lower auxiliary member main body 181 is a rod-shaped member having an L-shaped cross section and includes a side plate extending in the vertical direction and a support plate 181a vertically connected to the side plate. The length in the longitudinal direction of the lower auxiliary member main body 181 is larger than the length in the axial direction of the wide part Fa. On the other hand, the fixing plate 182 is a plate-like member whose longitudinal length matches the longitudinal length of the lower auxiliary member main body 181.

The lower auxiliary member 18 is attached to the lower end of the wide part Fa of the flange F before the H-shaped steel S is placed on the first mounting surface 121a as described above. The lower auxiliary member 18 is used as a jig attached to the lower end of the flange F.

The lower limit of the length in the longitudinal direction of the lower auxiliary member main body 181, that is, the side plate and support plate 181a, is preferably 200 mm, more preferably 300 mm. The upper limit of the longitudinal length of the lower auxiliary member main body 181 is preferably 800 mm, more preferably 600 mm. If the longitudinal length of the lower auxiliary member main body 181 is less than the above lower limit, the lower auxiliary member main body 181 cannot be attached because the longitudinal length of the lower auxiliary member main body 181 is less than the axial length of the wide part Fa. may become difficult. On the other hand, if the length in the longitudinal direction of the lower auxiliary member main body 181 exceeds the above upper limit, the efficiency of the attachment work may decrease because the length in the longitudinal direction of the lower auxiliary member 18 is large.

In the lower auxiliary member main body 181, the side plate contacts the outer surface of the wide portion Fa (in the case of the wide portion Fa of the fixed side flange F, the side surface facing the Y-axis negative direction), and the support plate 181a contacts the outer surface of the wide portion Fa. It is arranged to support the lower end. The lower auxiliary member main body 181 is arranged so that its longitudinal direction extends along the axial direction of the H-shaped steel S from the wide part Fa of the flange F toward the narrow part Fb. The fixed plate 182 is in contact with the inner surface of the wide portion Fa (in the case of the wide portion Fa of the fixed side flange F, the side surface facing the Y-axis positive direction), and the longitudinal direction extends from the wide portion Fa of the flange F to the narrow portion Fb. It is arranged so as to extend along the axial direction of the H-beam S towards the end.

The lower limit of the length of the support plate 181a in the transverse direction (horizontal length perpendicular to the longitudinal direction) is preferably 10 mm, more preferably 12 mm. The upper limit of the length of the support plate 181a in the lateral direction is preferably 16 mm, more preferably 14 mm. If the length of the support plate 181a in the lateral direction is less than the above-mentioned lower limit, there is a possibility that the lower end of the wide portion Fa cannot be stably supported. Conversely, if the length of the support plate 181a in the lateral direction exceeds the above upper limit, when the thickness of the wide part Fa is small, the support plate 181a protrudes beyond the wide part Fa in the orthogonal direction, and the lower vice 19 may not be able to hold the wide portion Fa.

When the fixed plate 182 is arranged, the lower end of the fixed plate 182 is located above the lower end of the wide part Fa. Therefore, the inner surface of the wide portion Fa is exposed at least in the range from the lowest end to the lower end of the fixing plate 182 in the vertical direction. In this way, the inner surface of the wide portion Fa is exposed at least in the vertical direction from the lowest end to the lower end of the fixing plate 182 when viewed from the rear, so that the inner surface of the wide portion Fa is exposed to the contact surface 191a of the fixing vise 191. It is possible to secure a contact area with the

Since the longitudinal lengths of the lower auxiliary member main body 181 and the fixing plate 182 are larger than the axial length of the wide part Fa, the side plates of the lower auxiliary member main body 181 partially connect to the fixing plate 182 without passing through the wide part Fa. is facing. Therefore, the lower auxiliary member 18 is fixed, for example, by a bolt passing through the side plate and the fixing plate 182 in the horizontal direction.

The fixing plate 182 has a through hole 182a penetrating in the thickness direction. Since the fixing plate 182 has the through hole 182a, a bolt passing through the through hole 182a can be placed. The bolt can be fixed so that its tip abuts against the wide portion Fa. By fixing the bolt whose tip abuts the wide part Fa using the through hole 182a in this way, the wide part Fa moves in the thickness direction between the side plate of the lower auxiliary member main body 181 and the fixing plate 182. This can definitely be suppressed.

As shown in FIG. 8, when the H-shaped steel S is placed on the second placement surface 193a together with the lower auxiliary member 18, the support plate 181a is disposed between the second placement surface 193a and the lower end of the wide part Fa. be done. The support plate 181a extends in the axial direction of the H-beam S and partially supports the lower end of the wide portion Fa. Since the second mounting surface 193a is formed by a plurality of rollers 193, if the lower end of the wide portion Fa is placed directly on the second mounting surface 193a, the width may be increased when the axial length of the wide portion Fa is small. There is a possibility that a sufficient contact area between the lower end of the portion Fa and the second mounting surface 193a cannot be ensured. On the other hand, as described above, the support plate 181a extends in the axial direction of the H-beam S and supports the lower end of the wide portion Fa, so that the H-beam S can be stably placed on the second mounting surface 193a. can.

When the wide part Fa of the flange F is placed on the second mounting surface 193a together with the lower auxiliary member 18, the wide part Fa of the flange F is clamped and fixed by the lower vice 19 after being positioned in accordance with the cutting position. Specifically, the contact surface 191a of the fixed vice 191 directly contacts the above-mentioned exposed range of the inner surface of the wide portion Fa. On the other hand, the movable vise 192 approaches the contact surface 191a of the fixed vise 191, thereby clamping and fixing the wide portion Fa via the side plate of the lower auxiliary member main body 181.

(Abutting member)
As shown in FIGS. 5 and 6, the contact member 14 includes a base 141 placed on the upper end of the wide part Fa of the flange F, a fixed plate 142, and a contact member that contacts the upper end of the narrow part Fb of the flange F. It has a contact portion 143.

The contact member 14 is attached to the upper end of the wide part Fa of the flange F before the H-shaped steel S is placed on the first placement surface 121a as described above. The contact member 14 is used as a jig attached to the upper end of the flange F.

The base 141 is a rod-shaped member having a substantially upside-down L-shaped cross section and a protrusion that protrudes downward. The length of the base portion 141 in the longitudinal direction is greater than the length of the wide portion Fa of the flange F in the axial direction.

As shown in FIGS. 5, 6, and 8, the base portion 141 is placed on the upper end of the wide portion Fa. At this time, the inner surface 141a of the protrusion (the side surface facing the negative direction of the Y-axis in the case of the base 141 on the fixed side) is the inner surface of the wide part Fa (the side surface facing the positive direction of the Y-axis in the case of the flange F on the fixed side). side). Further, the base portion 141 is disposed such that its longitudinal direction extends along the axial direction of the H-beam S from the wide portion Fa of the flange F toward the narrow portion Fb. Since the longitudinal length of the base 141 is larger than the axial length of the wide part Fa of the flange F, the base 141 is partially placed on the wide part Fa and partially extends from the wide part Fa to the H-beam S. It extends in the axial direction (hereinafter referred to as the extension part).

The fixing plate 142 is arranged so as to face the inner surface 141a of the protrusion of the base 141 with the wide portion Fa interposed therebetween. The fixing plate 142 and the base 141 are fixed, for example, by bolts that pass through the fixing plate 142 and the base 141 in the horizontal direction. Further, in order to more reliably fix the wide portion Fa, a bolt may be further fixed, for example, passing through the fixing plate 142 in the horizontal direction and coming into contact with the outer surface of the wide portion Fa.

The lower limit of the longitudinal length of the base 141 is preferably 200 mm, more preferably 300 mm. The upper limit of the longitudinal length of the base 141 is preferably 800 mm, more preferably 600 mm. If the length in the longitudinal direction of the base 141 is less than the above-mentioned lower limit, the length in the longitudinal direction of the base 141 is less than the length in the axial direction of the wide portion Fa, so there is a possibility that the contact portion 143 described below cannot be arranged. On the other hand, if the length in the longitudinal direction of the base 141 exceeds the above upper limit, the length in the longitudinal direction of the base 141 is large, so there is a risk that work efficiency will be reduced.

The lower limit of the length of the base 141 in the transverse direction (horizontal length perpendicular to the longitudinal direction) is preferably 50 mm, more preferably 60 mm. The upper limit of the longitudinal length of the base 141 is preferably 120 mm, more preferably 110 mm. If the length of the base 141 in the lateral direction is less than the above lower limit, the strength of the base 141 may be insufficient. On the other hand, if the length of the base 141 in the transverse direction exceeds the above upper limit, the length of the base 141 in the transverse direction becomes too large than the thickness of the wide part Fa, making it difficult to attach the contact member 14 to the wide part Fa. may become difficult.

In the present embodiment, the base portion 141 has a recessed portion in the upper portion that can be contacted by a lower portion of a pressing member main body 161, which will be described later. As shown in FIG. 8, the recess is formed, for example, at a corner formed by the top surface of the base 141 and the outer surface of the protrusion (in the case of the base 141 on the fixed side, the side facing in the positive direction of the Y-axis). be done. The recess has an L-shaped cross section formed by a vertical contact surface that contacts the lower part of the pressing member main body 161 and a horizontal surface when viewed from the side. The upper part of the base 141 is clamped and fixed in the orthogonal direction by a notch formed in the lower part of the pressing member main body 161, as will be described later. If the length of the base 141 in the transverse direction (the length in the orthogonal direction) corresponds to the width that can be held by the notches, the length of the base 141 in the transverse direction will be insufficient, and the contact member 14 will be There is a possibility that it cannot be stably attached to the top end. On the other hand, as described above, since the base portion 141 has a recessed portion in the upper part that can be contacted by the above-mentioned notch in the lower part of the pressing member main body 161, it is possible to stably attach the contacting member 14 to the upper end of the wide portion Fa, and to press the It is easy to configure the base 141 so that it can be held by the lower part of the member main body 161.

The base portion 141 has a through hole penetrating in the vertical direction for arranging the contact portion 143. In order to appropriately adjust the arrangement of the contact portion 143 in the axial direction according to the shape of the H-beam S, the base portion 141 has a plurality of through holes along the axial direction.

The protruding portion of the base portion 141 has a fixing hole for fixing the abutting portion 143. A plurality of fixing holes are provided along the vertical direction. The plurality of fixing holes may include, for example, those that penetrate horizontally from the outer surface of the protrusion of the base 141 to the through hole, and those that penetrate only the outer surface of the protrusion.

The abutting member 14 presses the upper end of the wide portion Fa toward the second mounting surface 193a by having the base portion 141 pressed from above by the pressing member 16. By pressing the contact member 14 from above in this manner, the wide portion Fa of the flange F can be fixed in the vertical direction.

The contact portion 143 is, for example, a cylindrical columnar member. The abutting portion 143 is disposed so as to pass through the through hole in the extended portion of the base 141 and abut against the upper end of the narrow portion Fb of the flange F. That is, the contact portion 143 at least partially extends downward from the extended portion of the base portion 141 so as to contact the upper end of the flange F. As described above, since a plurality of the through holes are provided along the axial direction, the arrangement of the contact portion 143 can be appropriately adjusted according to the shape of the H-section steel S. Further, a plurality of contact portions 143 can be arranged in each of the plurality of through holes.

The contact portion 143 may have a diameter reduced in a portion that penetrates the through hole of the base portion 141 with respect to a portion that abuts the upper end of the narrow portion Fb of the flange F (not shown). By reducing the diameter of the portion of the contact portion 143 that passes through the through hole, the through hole of the base portion 141 can be made smaller. This makes it easy to ensure the strength of the base 141.

The contact portion 143 preferably has a horizontal fixing hole on its side. Since the abutting part 143 has a fixing hole on the side, the abutting part 143 is fixed by passing a pin horizontally from the fixing hole of the protruding part to the fixing hole of the abutting part 143. be able to. Further, the contact portion 143 preferably has a plurality of fixing holes in the side portion along the vertical direction. Since the abutting part 143 has a plurality of fixing holes in the side part along the vertical direction in this way, the abutting part 143 can be vertically adjusted in accordance with the shape of the H-beam S.

The lower limit of the longitudinal length of the contact portion 143 is preferably 400 mm, more preferably 500 mm. The upper limit of the longitudinal length of the contact portion 143 is preferably 800 mm, more preferably 700 mm. If the length in the longitudinal direction of the abutting part 143 is less than the above lower limit, the abutting part 143 may not come into contact with the upper end of the narrow part Fb when the difference between the width of the wide part Fa and the width of the narrow part Fb is large. There is a risk that it will be difficult to bring them into contact with each other. On the other hand, if the longitudinal length of the abutting part 143 exceeds the above upper limit, there is a possibility that the workability for fixing the abutting part 143 will decrease.

The lower limit of the diameter of the portion of the contact portion 143 that contacts the upper end of the narrow portion Fb of the flange F is preferably 50 mm, and more preferably 70 mm. The upper limit of the diameter is preferably 120 mm, more preferably 100 mm. If the diameter is less than the lower limit, the narrow portion Fb of the flange F may not be stably fixed. Conversely, if the diameter exceeds the upper limit, the contact portion 143 may easily interfere with other members.

(Press member)
The pressing member 16 includes a pressing member main body 161 that contacts the base 141 of the abutting member 14, and a pressing cylinder 162 that presses the pressing member main body 161 from above.

The pressing member main body 161 is a substantially rectangular member in plan view that protrudes from the inner surface of the support frame 13 in a direction orthogonal to the conveying direction. In this embodiment, the longitudinal direction of the pressing member main body 161 corresponds to the transport direction of the H-section steel S, and the lateral direction of the pressing member main body 161 corresponds to the above-mentioned orthogonal direction. The pressing member main body 161 is supported by the support frame 13 so as to be movable up and down. The pressing member main body 161 has an upper portion that is pressed vertically from above by the pressing cylinder 162 and a lower portion that abuts the base portion 141 .

As shown in FIG. 8, the lower part of the pressing member main body 161 has a triangular cut in side view for clamping and fixing the upper part of the base 141. This notch is composed of an inner surface 161a and an inclined surface 161b. The inner surface 161a extends in the longitudinal direction and the vertical direction. The inclined surface 161b extends diagonally downward toward the support frame 13 from the upper end edge of the inner surface 161a in side view. Since the lower part of the pressing member main body 161 has a triangular cut in side view, the lower part of the pressing member main body 161 can sandwich the upper part of the base 141 in accordance with the width of the upper part of the base 141 in the orthogonal direction. Can be fixed. When the lower part of the pressing member main body 161 clamps and fixes the upper part of the base 141, the inner surface 161a of the cut comes into contact with the recess formed in the upper part of the base 141.

It is preferable that the inner surface 161a of the above-mentioned notch of the pressing member main body 161 and the contact surface 191a of the fixed vice 191 are flush with each other. Depending on the configuration and arrangement of the abutting member 14, when beveling the H-beam S, the upper end of the wide part Fa of the H-beam S may be directly pressed by the pressing member main body 161 without using the abutting member 14. Cases are expected. In this case, if the inner surface 161a and the contact surface 191a are flush, it is easy to clamp and fix the wide portion Fa of the H-beam S in the orthogonal direction. That is, since the inner surface 161a of the pressing member main body 161 and the abutting surface 191a of the fixed vice 191 are flush with each other, it is easy to perform bevel processing corresponding to different configurations and arrangements of the abutting member 14. Become. In this embodiment, the inner surface 161a of the pressing member main body 161, the inner surface 141a of the base 141, and the contact surface 191a of the fixed vice 191 are flush with each other.

The pressing cylinder 162 extends downward, for example, from the lower surface of the second beam portion 114 to the upper surface of the pressing member main body 161. After the H-shaped steel S is adjusted to the cutting position, the pressing cylinder 162 presses the upper part of the pressing member main body 161 downward. When the pressing cylinder 162 presses the upper part of the pressing member main body 161 downward, the pressing member main body 161 moves downward, and further, the lower part of the pressing member main body 161 clamps and fixes the upper part of the contact member 14 and presses it downward.

Examples of the pressure cylinder 162 include a hydraulic cylinder, a pneumatic cylinder, and an electric cylinder. Among these, hydraulic cylinders are preferred because of their high operating pressure and low vibration.

(advantage)
In the beveling machine 1, the pressing member 16 presses downward the wide part Fa of the flange F of the H-shaped steel S placed on the mounting surface 193a, thereby fixing the H-shaped steel in the vertical direction. In addition, since the contact member 14 contacts the upper end of the narrow portion Fb of the flange F, vibration of the narrow portion Fb of the flange F can be suppressed. For this reason, the beveling machine 1 can easily and reliably perform beveling in a state where the H-beam S is fixed even if the H-beam S has a wide flange at the end.

[Other embodiments]
The above embodiments do not limit the configuration of the present invention. Therefore, in the above embodiment, it is possible to omit, replace, or add components of each part of the above embodiment based on the description of this specification and common general technical knowledge, and all of these are interpreted as falling within the scope of the present invention. Should.

In the above embodiment, a case has been described in which both ends of the flange F in the axial direction are beveled at the same time, but only one end of the flange F in the axial direction may be beveled. Alternatively, a configuration may be adopted in which only one processed portion is provided.

In the embodiment described above, a case has been described in which the pair of flanges F are beveled at the same time, but only one of the flanges F may be beveled. Alternatively, only one cutting header may be provided in the processing section.

In the above embodiment, a beveling cutter is attached to the cutting header, but it is also possible to further attach a scallop cutter, a driving cutter, etc. to the cutting header and perform scalloping at the same time as beveling. good.

In the above embodiment, the H-section steel to be beveled has wide portions having the maximum width at both ends in the axial direction, but the object of the present invention is not limited to the above-mentioned H-section steel. The H-section steel to be beveled according to the present invention may have a wide portion only at one end in the axial direction, or the width of the portion other than the wide portion may vary along the axial direction. . Furthermore, the lower end of the flange F may be flush with each other.

If the lower end of the flange F of the section steel to be beveled is flush, it is not necessary to attach the lower auxiliary member to the lower end when fixing this section steel. In this case, the lower end of the flange F is placed directly on the placement surface of the lower vice of the present invention.

The lower auxiliary member may have an additional auxiliary member projecting upward from the lower auxiliary member body or fixing plate to support the lower end of the flange or the lower surface of the web.

In the above embodiment, a case has been described in which a cylindrical columnar member is used as the abutting portion of the abutting member, but the abutting portion may be a prismatic pillar. Further, the abutting portion may be a member other than a columnar member that is fixed to the base of the abutting member and that can abut the upper end of the flange other than the wide portion.

In the above embodiment, the base of the abutting member is placed on the upper end of the wide part of the flange, and the pressing member presses the base of the abutting member. The abutting member may protrude downward from the pressing member so that the member directly presses the wide portion of the flange and abuts the upper end of the flange other than the wide portion.

In the above embodiment, a case has been described in which the abutting member is placed on the upper end of the H-shaped steel and the pressing member presses the base of the abutting member, but the abutting member and the pressing member may be integrated.

In the above embodiment, a case has been described in which bolts are used to fix the abutting member and the lower auxiliary member, but the present invention is not limited to this. For example, a pin or the like may be used to fix the abutting member and the lower auxiliary member.

As mentioned above, the beveling machine of the present invention can bevel H-beams having wide flanges at the ends while easily and reliably fixing them. Applicable to beveling.

1 Bevel processing machine 10 Processing section 101 Processing section 11 Housing 111 Base section 112 Column section 113 First beam section 114 Second beam section 12 Mounting table 121 Roller 121a First mounting surface 13 Support frame 14 Contact member 141 Base 141a Inner surface 142 Fixed plate 143 Contact part 16 Pressing member 161 Pressing member main body 161a Inner surface 161b Inclined surface 162 Pressing cylinder 17 Cutting header 18 Lower auxiliary member 181 Lower auxiliary member main body 181a Support plate 182 Fixed plate 182a Through hole 19 Lower vice 191 Fixed vice 191a Contact surface 192 Movable vice 193 Roller 193a Second contact surface 20 Conveying section 21 Guide rail 22 Support stand 221 Rail engaging section 222 Support surface S H-shaped steel F Flange Fa Wide section Fb Narrow section W Web

Claims (9)

A beveling machine capable of bevelling an H-section steel having a wide flange at the end,
a fixing mechanism capable of fixing the flange;
and a processing mechanism that performs bevel processing with the H-shaped steel fixed,
The above fixing mechanism is
a placing part on which the lower end of the wide part of the flange can be placed;
a pressing member disposed above the placement portion and capable of pressing the upper end of the wide portion downward;
and a contact member that contacts an upper end of the flange other than the wide portion. The beveling machine according to claim 1, wherein the abutting member is vertically adjustable. The fixing mechanism has a lower auxiliary member attached to the lower end of the wide portion,
The beveling machine according to claim 1 or 2, wherein the lower auxiliary member has a support portion that extends in the axial direction of the flange and supports a lower end of the wide portion. The beveling machine according to claim 1 or 2, wherein the pressing member presses the upper end of the wide portion using a hydraulic cylinder. The beveling machine according to claim 1 or 2, further comprising a height-adjustable support stand for supporting and transporting the H-shaped steel toward the mounting section. Further comprising a guide rail laid toward the above-mentioned mounting section,
The beveling machine according to claim 5, wherein the support base is attached movably along the guide rail. A jig that is attached to the upper end of an H-shaped steel having a wide flange at the end in order to perform beveling on the flange,
a base placed on the upper end of the wide portion of the flange;
and a contact portion fixed to the base and abutting an upper end of the flange other than the wide portion. A jig that is attached to the lower end of an H-shaped steel having a wide flange at the end for beveling the flange,
A jig including a support portion extending in the axial direction of the flange and supporting a lower end of a wide portion of the flange. A jig set comprising the jig according to claim 7 and the jig according to claim 8.

Images