JP5490550B2 - H-shaped steel groove processing equipment - Google Patents

Description

 The present invention relates to a groove processing apparatus for H-section steel that enables groove processing to be performed at both ends by one apparatus without turning the H-section steel.

 When connecting the H-shaped steel to be a beam to the steel column for building, as shown in FIGS. 8A and 8B, the diaphragm 42 is welded to the steel column 41, and the flange F of the H-shaped steel S is connected to the diaphragm 42. And the web W is further welded to the steel column 41. As shown in FIGS. 9 to 11, the abutting portion of the H-shaped steel S with respect to the diaphragm 42 is subjected to follow-up processing, scallop processing, and groove processing for the purpose of improving welding quality and workability. Specifically, notches 30 with arcs at the back are formed on both sides of the web W at both ends of the H-section steel S (scallop processing), and a right-angled flat root surface 31 and inclined surfaces at both flange ends. A chamfered surface 32 is formed (groove processing). As shown in FIG. 11, a processing apparatus for performing this scallop processing and groove processing includes a hemispherical scallop cutter 19 for performing notch processing, a cylindrical driving cutter 18 for performing route surface processing, and chamfering surface processing. And a groove cutter 20 for performing A general groove processing apparatus is provided with a pair of left and right mounting these three cutters 18 to 20 on a common lifting head. Then, by raising or lowering the elevating head, first, an L-shaped notch is processed on both the left and right sides of the end of the H-shaped steel S by the driving cutter 18, and then the L-shaped notch is processed by the scallop cutter 19. Arc-shaped cutouts 30 are machined toward the backs on both sides of the web W so as to go partially, and finally a chamfered surface 32 is machined on the tip of the flange F with a groove cutter 20. When the groove processing of the front end of the H-shaped steel S is finished, the H-shaped steel S is turned 180 ° and the rear end of the H-shaped steel S is processed in the same manner.

JP-A-62-176707 JP-A-8-155720

Since the conventional groove processing device swivels the H-shaped steel 180 ° in order to replace the front end and the rear end of the H-shaped steel, a wide space for swiveling the long H-shaped steel is necessary at the work site. In addition, the turning work of the H-shaped steel has a problem that it takes time to ensure safety. There is no suggestion that the front and rear ends of the H-section steel can be grooved with one apparatus without swiveling the H-section steel (for example, see Patent Documents 1 and 2), but it has not yet been put into practical use. In addition, if two groove processing devices are installed back to back for the front end and the rear end of the H-shaped steel, it is not necessary to turn the H-shaped steel and the work efficiency is improved. There is a problem that requires.
The present invention has been made to solve such a problem, and an object of the present invention is to make it possible to perform groove processing on one end of an H-shaped steel without turning it.

The groove processing apparatus for H-section steel according to claim 1 is configured to open an H-section steel, which performs a follow-up process by a follow-up cutter, a scallop process by a scallop cutter, and a bevel process by a groove cutter at an end of the H-section steel. A pair of processing frames, a pair of support frames erected at opposite positions in the transverse direction of the H-shaped steel to be processed, a pair of cutter heads mounted on the support frame so as to be movable up and down, and the pair of cutters Drive-up cutter, scallop cutter and groove cutter mounted side by side in two longitudinal positions on the head in the longitudinal direction of the H-section steel, and the drive cutter, scallop cutter and groove cutter are rotated. Processing the H-section steel, the cutter driving means, the driving cutter, the scallop cutter and the groove cutter That the processing position, and advancing drive means said for independently advancing drive between a retracted position where it does not interfere with the H-shaped steel, a lifting drive means for lifting the cutter head is attached to the pair of support frames, wherein And a clamp for fixing the H-shaped steel in the vertical direction between two longitudinal positions of the H-shaped steel, to which three cutters are mounted .

In the present invention, a driving cutter, a scallop cutter, and a groove cutter are arranged in two rows in front and rear in each of a pair of cutter heads, and each cutter can be retracted to a retracted position when not needed. The rear end of the H-shaped steel can be processed with the rear cutter. As a result, it is possible to perform groove processing on the front and rear ends of the H-section steel with one apparatus without turning the H-section steel.
In addition, since the reaction force from each cutter during H-section steel processing acts on the support frame that supports the cutter head, the distance between the clamp and the end of the H-section steel by attaching the clamp to the support frame itself The rigidity of the clamp can be increased in combination with the shortening of the length of the H-shaped steel, and the H-shaped steel can be fixed more securely. In addition, since the clamp can be disposed in the middle of the front and rear cutter rows, the cutter head can be configured compactly.

The groove processing apparatus for H-section steel according to claim 2 , wherein the cutter driving means includes a total of six cutters including two driving cutters, two scallop cutters, and two groove cutters disposed in one cutter head. Is a single rotational drive means for rotationally driving in common. Thereby, the structure of a groove processing apparatus can be simplified and cost reduction can be aimed at.

  In the present invention, a driving cutter, a scallop cutter, and a groove cutter are arranged at two positions in the front and rear in each of a pair of cutter heads, and each cutter can be retracted to a retracted position by an advancing / retreating driving means when not required. In the process of conveying steel in a straight line, the front end can be processed with a front cutter, and the rear end can be processed with a rear cutter. As a result, it is possible to perform groove processing on the front and rear ends of the H-section steel with one apparatus without turning the H-section steel. In addition, since the pair of cutter heads can be arranged close to each other, the apparatus can be made compact.

The top view of the groove processing apparatus which concerns on this invention Front view of a groove processing apparatus according to the present invention The principal part top view of the groove processing apparatus which concerns on this invention The principal part front view of the groove processing apparatus which concerns on this invention Principal plan view of the front end of H-section steel Plan view of the main part during rear end machining of H-section steel Side view of main part during front end machining of H-section steel (A) is a plan view of a steel column and H-shaped steel, (B) is a front sectional view thereof Top view of H-section steel End perspective view of H-section steel End plan view of H-section steel

Embodiments of a groove working apparatus according to the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the groove processing apparatus 1 has a front roller table 3 and a rear roller table 4 on a base 2. The H-section steel S is transported from these arrow tables 3 and 4 in the direction of arrow A. A left support frame 5 and a right support frame 6 are erected on the base 2 symmetrically on both sides of the roller tables 3 and 4. The left support frame 5 is movably mounted on a pair of rails 25 disposed on the base 2 at right angles to the longitudinal direction of the roller tables 3 and 4. The hydraulic cylinder 7 is disposed on the base 2 between the pair of rails 25, and the piston rod of the hydraulic cylinder 7 is connected to the lower portion of the left support frame 5. The left support frame 5 can be moved left and right along the rail 25 by the expansion and contraction operation of the hydraulic cylinder 7, so that the width (web width) depending on the type of H-section steel S can be accommodated. The right support frame 6 is movably mounted on a pair of rails 11 disposed in parallel with the longitudinal direction of the roller tables 3 and 4 on the base 2. A hydraulic cylinder 8 is disposed on the base 2 between the pair of rails 11, and a piston rod of the hydraulic cylinder 8 is connected to a lower portion of the right support frame 6. When the end of the H-section steel S is cut obliquely instead of perpendicularly, the right support frame 6 is advanced by the hydraulic cylinder 8 so as to fit the position to be processed. An upper clamp cylinder 9 and a lower clamp cylinder (not shown) are disposed in the center of the left and right support frames 5 and 6 facing each other. The upper clamp cylinder 9 has a holding jig 10 extending downward, and the upper end of the flange of the H-section steel S is pushed down by the holding jig 10. The lower end of the flange of the H-shaped steel S is supported by pushing up a receiving jig 12 disposed upward and slidable by a hydraulic cylinder (not shown) (see FIGS. 4 and 5). The receiving jig 12 is provided on each of the left and right sides, and on both sides of the receiving jig 12, two small rollers 13 that support the lower end of the flange are rotatable with respect to the support frames 5 and 6. Arranged. The height of the roller 13 is the same as the height of the front roller table 3 and the rear roller table 4 described above.

 A left cutter head 14 and a right cutter head 15 are respectively disposed on the left support frame 5 and the right support frame 6 so as to be movable up and down. Each cutter head 14, 15 has a U-shape in plan view, and this U-shaped concave portion is slidably fitted to the left and right support frames 5, 6. A cutter head lifting / lowering motor 16 is disposed on the upper rear side of the left and right support frames 5 and 6. The motor 16 is connected to a feed screw 17 extending downward in the vertical direction, and the forward and reverse rotation of the feed screw 17 causes the cutter heads 14 and 15 partially engaged with the feed screw 17 to move up and down. Yes.

 A driving cutter 18, a scallop cutter 19, and a groove cutter 20 are disposed on the opposite sides of the left and right cutter heads 14 and 15, respectively. The rotation axes of the cutters 18 to 20 are horizontal and parallel to each other, and all the rotation axes are perpendicular to the flange surface of the H-section steel. The cutters 18 to 20 mounted on the left and right cutter heads 14 and 15 are a driving cutter 18, a scallop cutter 19, and a groove cutter 20 in order from the bottom. In this embodiment, the driving cutter 18 and the groove cutter 20 are constituted by up-cutting cutters, and only the scallop cutter 19 is constituted by a down-cutting cutter. Here, “up cut” refers to a process in which the cutter blade sharpens from a cut part, and “down cut” refers to a process in which the cutter blade scrapes from an uncut part. Since the cutters 18 to 20 of the left and right cutter heads 14 and 15 that are diagonally opposed to each other have the same rotation direction, there are only two types of cutters.

 Specifically, as shown in FIG. 7, the rotation axis of each cutter head is arranged such that the rotation axis of the scallop cutter 19 is closest to the center of the cutter head, the second is the rotation axis of the driving cutter 18, and the third is This is the rotation axis of the groove cutter 20. The reason why the rotation axis of the scallop cutter 19 is closest to the center is that the diameter of the scallop cutter 19 is made as small as possible because the scallop processing processes the deepest position of the H-shaped steel end. The horizontal distances from the positions of the front and rear cutters 18 to 20 to the holding jig 10 and the receiving jig 12 are set equal. That is, the holding jig 10 and the receiving jig 12 are arranged at the exact center positions of the front and rear cutters 18 to 20. Thereby, the clamping conditions at the front and rear ends of the H-shaped steel S are made equal.

On the back side of the left and right cutter head 14, 15 is arranged a cutter driving motor 21, the rotation axis of the total of six of this cutter driving motor 21 on each cutter head 14, 15 via a plurality of gears It comes to drive. Each cutter head 14, 15 has a cutter advance / retreat motor 22 individually connected to the rear ends of the six rotary shafts of the cutters 18-20. The cutter advancing / retreating motor 22 selectively moves each of the cutters 18 to 20 to a machining position for the H-section steel S and a retreat position that does not interfere with the H-section steel S. A cylinder may be provided instead of the cutter advance / retreat motor 22. The cutter advancing / retreating motor 22 also functions for adjusting the groove processing amount. For example, when there is no scallop processing (non-scallop processing), the cutter advance / retreat motor 22 moves the scallop cutter 19 back to a position where it does not interfere with the H-section steel S, and then moves the driving cutter 18 back to a position slightly retracted than usual. Then, it is driven. When the width of the route surface formed by the driving cutter 18 is to be adjusted, the width of the route surface is adjusted by adjusting the protrusion amount of the groove cutter 20 with the cutter advance / retreat motor 22.

Next, the process by the groove processing apparatus of this invention is demonstrated.
As shown in FIG. 1, the cutter advancing / retracting motor 22 is first driven to retract the rear cutters 18 to 20 of the left and right cutter heads 14 and 15 to a position where they do not interfere with the H-section steel S. At this time, the cutter heads 14 and 15 are raised. In this state, when the H-section steel S is conveyed in the direction of arrow A in FIG. 1 and its front end E reaches the position indicated by the two-dot chain line , the conveyance of the H-section steel S is stopped. Next, the upper clamp cylinder 9 and the lower clamp cylinder (not shown) are driven, and the upper and lower ends of the flange of the H-shaped steel S are pressed by the holding jig 10 and the receiving jig 12, thereby fixing the H-shaped steel S. (FIG. 4).

Next, each cutter 18-20 is rotationally driven by the cutter driving motor 21, and the cutter heads 14, 15 are gradually lowered by the lifting motor 16, and the driving cutter 18, the scallop cutter 19, and the groove cutter 20 are in the order of H. Cut into shape steel S. FIG. 7 shows a state in which groove processing is performed after scalloping by the scallop cutter 19 is finished. When the processing of the chamfered surface by the groove cutter 20 is completed, the cutter heads 14 and 15 are raised to their original height positions, the cutter driving motor 21 is stopped, and then the forward / backward motor 22 is driven to move each cutter on the front side. Retract 18-20. In this state, the clamp of the H-section steel S is once released, the H-section steel S is conveyed forward, and the rear end corresponds to the cutters 18 to 20 on the rear side of the groove processing apparatus 1 as shown in FIG. When it reaches the specified position, the conveyance is stopped. Then, similarly to the front end machining, the H-shaped steel S is fixed by the upper clamp cylinder 9 and the lower clamp cylinder (not shown), and the respective rear cutters 18 to 20 are advanced from the retracted position by the advance / retreat motor 22, and the cutter The cutters 18 to 20 are rotationally driven by the drive motor 21, and the cutter heads 14 and 15 are gradually lowered by the lift motor 16. As a result, the rear end is grooved in the same manner as the front end of the H-shaped steel S. In this way, groove processing is performed on both front and rear ends of the H-shaped steel S. When the rear end groove processing is finished, the cutter heads 14 and 15 are raised to their original height positions in preparation for the next processing of the H-shaped steel S, and the cutter driving motor 21 is stopped, as shown in FIG. The advancing / retreating motor 22 is driven to retract the respective cutters 18 to 20 on the rear side of the cutter heads 14 and 15 and advance the respective front cutters 18 to 20.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above-described embodiment, the H-section steel S is processed while the left and right cutter heads 14 and 15 are lowered, but this is to eliminate the influence on cutting by chips generated during the processing. If it is not necessary to consider the influence of chips, it is not impossible to process the H-section steel S while raising the left and right cutter heads 14 and 15. In that case, the arrangement of the cutters 18 to 20 with respect to the left and right cutter heads 14 and 15 is referred to as the driving cutter 18, the scallop cutter 19, and the groove cutter 20 in order from the top. For example, the front side of one cutter head is, for example, the driving cutter 18, the scallop cutter 19, and the groove cutter 20 in order from the bottom. It is also possible to use the cutter 20. Alternatively, the reverse is also possible on the front side and the rear side. In addition, when processing the H-section steel S while raising the cutter heads 14, 15, the rotation direction of the cutters 18 to 20 is reversed from that at the time of lowering, and the cutter type is also replaced with a reverse one.

DESCRIPTION OF SYMBOLS 1 Groove processing apparatus 5 Left support frame 6 Right support frame 9 Upper clamp cylinder 10 Holding jig 12 Receiving jig 14 Left cutter head 15 Right cutter head 16 Cutter head raising / lowering motor 17 Feed screw 18 Drive-in cutter 19 Scallop cutter 20 Open Tip cutter 21 Cutter drive motor 22 Cutter advance / retreat motor

Claims (3)

A groove processing device for H-section steel, which performs a chasing process by a chasing cutter, a scalloping process by a scallop cutter, and a groove process by a groove cutter at the end of the H-section steel,
A pair of support frames erected at opposing positions in the transverse direction of the H-shaped steel to be processed;
A pair of cutter heads mounted on the support frame to be movable up and down;
On the pair of cutter heads, a driving cutter, a scallop cutter and a groove cutter, which are mounted side by side in the vertical direction at two positions spaced apart in the longitudinal direction of the H-shaped steel,
Cutter driving means for rotationally driving the driving cutter, scallop cutter and groove cutter;
Advancing and retreating driving means for independently driving the retreating cutter, the scallop cutter and the groove cutter between a processing position for processing the H-shaped steel and a retracted position which does not interfere with the H-shaped steel;
Elevating drive means for elevating the cutter head;
A clamp that is attached to the pair of support frames and that is attached to the three cutters and that fixes the H-shaped steel in the vertical direction between two positions in the longitudinal direction of the H-shaped steel,
An H-shaped steel groove processing apparatus comprising: The cutter driving means is a single rotational driving means for rotationally driving a total of six cutters including two driving cutters, two scallop cutters, and two groove cutters disposed in one cutter head. Item 1. A groove processing apparatus according to Item 1. It is a groove processing apparatus for H-section steel that performs the follow-up process with a follow-up cutter and the groove process with a groove cutter at the end of the H-section steel,
A pair of support frames erected at opposing positions in the transverse direction of the H-shaped steel to be processed;
A pair of cutter heads mounted on the support frame to be movable up and down;
On the pair of cutter heads, a driving cutter and a groove cutter, which are mounted side by side in the vertical direction at two positions spaced apart by a predetermined distance in the longitudinal direction of the H-shaped steel,
Cutter driving means for rotationally driving the driving cutter and the groove cutter;
Advancing and retreating driving means for independently driving the retreating cutter and the groove cutter between a processing position for processing the H-shaped steel and a retracted position that does not interfere with the H-shaped steel;
Elevating drive means for elevating the cutter head;
A clamp attached to the pair of support frames and fixed to the H-shaped steel in the vertical direction between two positions in the longitudinal direction of the H-shaped steel, to which the two cutters are attached,
An H-shaped steel groove processing apparatus comprising:

Images