JPH0134728B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a beveling scalloping device for H-beam steel, and in particular, it relates to a beveling scalloping device for H-beam steel, and particularly to a device for cutting a steel material at right angles to its longitudinal direction. Even when the web is cut diagonally, beveling can be performed on both flanges and scalloping can be performed on both the joints of the flanges and the web in one process.

(Conventional technology) Bevel processing on both side flanges of H-beam steel,
As a processing device that simultaneously performs scallop processing on a web, the one disclosed in Japanese Patent Publication No. 58-22284 is well known. This is applied to steel sections whose end faces are cut at right angles to the longitudinal direction.
In other words, the beveling of both flange ends located at the same longitudinal position and the scalloping of the web can be simultaneously performed using two symmetrically arranged cutting machines, greatly improving processing efficiency. Ta. However, in the case of structural steel for roofs, etc. whose end faces are cut diagonally with respect to the longitudinal direction, the flange processing positions in the longitudinal direction are different on both sides, making it impossible to perform simultaneous processing. This was accomplished by cutting twice on each side.

(Problems to be Solved by the Invention) Therefore, with conventional processing machines, when machining diagonal members, it takes twice the effort, resulting in redundant machining time, resulting in extremely low productivity.

The present invention has been made in view of the problems of the prior art described above, and can be used not only for steel materials whose end surfaces are perpendicular to the longitudinal direction, but also for steel materials whose end surfaces are oblique to the longitudinal direction. The object of the present invention is to provide an efficient processing device that can simultaneously perform preprocessing and scallop processing on both sides of the web in one process.

(Means for Solving the Problems) In order to achieve the above object, the processing device of the present invention provides a processing device having a pair of cutters on both sides at both side flange ends of the H-beam steel and at both joint ends of both side flanges and the web. an interval adjustment means for adjusting the cutter interval according to the width of both side flanges, and a front-rear adjustment means for adjusting the cutter position in the longitudinal direction of the H-shaped steel orthogonal to the interval adjustment direction; The cutter is provided with a cutting feed means for moving the cutter in a required cutting direction orthogonal to the interval adjustment direction and the front-rear adjustment direction.

(Function) For a steel material whose end face is cut perpendicular to the longitudinal direction, the pair of cutter means on both sides are aligned in symmetrical positions by the front and back adjustment means, and For steel materials whose end surfaces have been cut diagonally, adjust the position of one of the cutter means in the front-rear direction so that the cutter position is aligned with each flange end, and in either case, cut the required part of the flange and web. Beveling and scalloping are performed simultaneously in one process.

(Example) Hereinafter, an example of the processing machine according to the present invention will be specifically described with reference to the drawings.

Figure 1 is a partially cutaway front view, Figure 2 is a partially cutaway plan view, and Figure 3 is a side view. A roller conveyor 3 is disposed on the bed 2 as a loading section for the H-shaped steel material W (hereinafter simply referred to as a work). This roller conveyor 3 is composed of a large number of actively driven rollers, and exerts a feeding action in the front-rear direction (vertical direction in FIG. 2), that is, in the longitudinal direction of the work W. Next, reference numeral A indicates a clamping device that clamps and fixes the work W on the roller conveyor 3 in a fixed position, and includes a pair of pressing plates 4 and 5 that press the flanges a and b on the work W from both left and right sides, and a flange a. , b, which press the upper edges from above to correct them, and clamp pieces 8, 9 which press the lower edges of flanges a, b from the sides to correct them. Ru. Here, one pressing plate 4 is fixed to one side of the bed 2, and has a vertical pressing surface 4a on the inside corresponding to the outer surface of one flange a. The other pressing plate 5 is movable and has a vertical pressing surface 5a on the inside corresponding to the outer surface of the other flange b. Reference numeral 10 denotes a slide guide in the left and right direction provided on the bed 2, and the pressing plate 5 is engaged with this slide guide 10 via a base 11.
Reference numeral 12 denotes a cylinder for operating the pressing plate 5, which connects the cylinder body 12a to the bed 2 side and connects the piston rod 12b side to the pressing plate 5, and opens and closes the clamp interval by the expansion and contraction of the piston rod 12b. The clamping pieces 6 and 7 that press the upper edges of the flanges a and b downward have sloped surfaces 6 at their lower ends that contact the inner upper edges of the flanges a and b.
a, 7a, and these slope surfaces 6a, 7a
, the upper ends of flanges a and b are pressed toward vertical pressing surfaces 4a and 5a. Reference numerals 13 and 14 indicate actuating cylinders which are attached downward to the upper ends of the pressing plates 4 and 5, respectively, and have clamping pieces 6 and 7 fixed to the ends of the piston rods, and move the clamping pieces 6 and 7 up and down by telescopic movements. In addition, the clamping pieces 8 and 9 that press the lower edges of the flanges a and b from the sides are the pressing plates 4 and 9.
Actuation cylinder 1 installed horizontally at the lower end of 5
5 and 16, respectively, and the clamping pressure surface 8
a, 9a toward the vertical pressing surfaces 4a, 5a. The workpiece W thus clamped by both the pressing plates 4 and 5 is moved to its flanges a and b by the operation of the upper and lower clamping pieces 6 and 7 and the clamping pieces 8 and 9.
is vertically corrected and held in place.

Next, each structure of the cutting device disposed on the front side of the clamp device A will be explained.

The cutting devices B are arranged in pairs in the left and right direction corresponding to the cutting locations on both sides of the workpiece W.
The interval is set according to the width of the workpiece W, and after the interval is set, the cutter position is determined and the cutter is sent in a required cutting direction.

Reference numeral 20 denotes a pair of left and right slide guides 21 and 22 disposed on the front side of the frame 1, which are a pair of left and right movable bases that are engaged with the slide guides 20, and each of these movable bases 21 and 22 has an upright column 23. and 24 have been established.
These columns 23 and 24 are provided with lifting guides 25 and 26 in the same direction, that is, in the vertical direction, and lifting bases 27 and 28 are engaged with these lifting guides 25 and 26. A horizontal guide 29 that protrudes forward is provided on one of the lifting bases 28 (in this embodiment, the side corresponding to the pressing plate 5 on the movable side), and a cutting head is mounted on this horizontal guide 29 via a movable base 30. Provide 31.
The other lifting base 27 is fixedly equipped with a cutting head 32.

In this way, each of the cutting heads 31 and 32 is equipped to be movable in two directions, ie, the left-right direction and the vertical direction, and one of the cutting heads 31 is movable in the front-back direction in addition to the above two directions. It's summery. The longitudinal adjustment means for adjusting the cutting head 31 back and forth includes a feed screw shaft 33 rotatably supported within the horizontal guide 29, a nut 34 of the movable base 30 screwed onto the feed screw shaft 33, and the feed screw shaft 33. It is constituted by a handle 35 at the end of the. Note that 36 is a scale plate 37 that indicates the amount of movement of the cutting head 31. When the scale plate 37 indicates the number 0 on the scale plate 36, it is assumed that both the cutting heads 31 and 32 are at the same position in the front-rear direction.

Further, the cutting heads 31 and 32 have three spindles 31a and 31 in the vertical direction, respectively.
b, 31c and 32a, 32b, 32c are rotatably supported, and are arranged in this order from above: a drive-in cutter shaft, a bevel cutter shaft, and a scallop cutter shaft. In the case of this embodiment, spindles 31b, 31c and 32b, 32c
Attach beveling cutters 38, 38 and scalloping cutters 39, 39 to the respective sides. Reference numbers M ₁ and M ₂ are motors that rotationally drive each spindle 31a to 31c and 32a to 32c in a required cutting direction via a transmission gear (not shown).

Next, the cutting feed means for driving each cutting head 31, 32 in a required cutting direction, that is, in the vertical direction, will be explained. This cutting feed means includes columns 23,
Feed screw shafts 40, 41 are supported with only rotation freely in 24, and passive nuts 42, 4 of elevating bases 27, 28 screwed onto these feed screw shafts 40, 41.
3 and a motor linked to the feed screw shafts 40, 41
Consists of M ₃ and M ₄ . Then the cutting head 3
1 and 32 are driven upward from the waiting position at the lower end, and the beveling cutters 38 and 3
8 and the scalloped cutters 39, 39 are activated. Note that the motors M ₃ and M ₄ may be of a variable speed type controlled by an inverter or the like.

Next, a distance adjusting means for opening and closing the distance between the two cutting heads 31 and 32 to the left and right and setting the cutter distance to the machining position of the workpiece W will be explained. The reference setting position of the cutter is determined based on the straight cutting surface of the scalloping cutters 39, 39, and is set so that the inner surfaces of the flanges a and b of the workpiece W are aligned with this reference surface. That is, reference numerals 44 and 45 are feed screw shafts that are rotatably supported at one end and the other end of the slide guide 20, respectively. Motors M ₅ and M ₆ are connected to the ends of the feed screw shafts 44 and 45, respectively, and the cutter positions of both cutting heads 31 and 32 are adjusted by driving the motors. Reference numerals 48 and 49 denote abutment docks extending forward from the clamping pressure pieces 8 and 9, and these abutment docks 48 and 49 correspond to limit switches LS ₁ and LS ₂ mounted on the moving bases 21 and 22, respectively.
The motors M ₅ and M ₆ are controlled by opening and closing the contacts of the switch, and the cutter position is set. Note that the code is 50
What is indicated by is a piece for regulating the feeding position of the workpiece W located at the front end of the roller conveyor 3, and this regulating piece 5
0 is brought into contact with the flange b on the fixed pressing plate 4 side, and the workpiece W is fixed in a fixed position. This regulating piece 50 is actuated by a cylinder 51 and is projected onto the conveyor only when the workpiece W is being fed.

Each of the operating means configured as described above performs sequential operations based on commands from an electric control circuit (not shown) associated with the operating member (motor, cylinder). correction,
Necessary operations such as setting the cutter position and feeding the cutter are performed in a series.

One embodiment of the groove scallop processing apparatus according to the present invention is constructed as described above, and the required grooves are formed at the end faces of both flanges a and b and at the joint end of flanges a and b and web c. A case where processing and scallop processing are performed will be explained.

First, in a state where processing is expected, the actuating cylinder 12 of the pressing plate 5 in the clamp device A retracts the piston rod 12b into the retracted end, and separates the pressing surface 5a from the fixed pressing surface 5b. Also, the upper clamping pieces 6 and 7 are also attached to the cylinder 1.
3 and 14, the lower clamping pressure piece 6,
7 is located near the center of the conveyance line due to the extension of the piston rod. Furthermore, the cutting head 31,
32 lifting/lowering operation motors M ₃ and M ₄ position these cutting heads 31 and 32 at the lower end, and each cutter is immersed in the conveyor conveyance surface, and motors M ₅ and M ₆ of the interval adjustment means are used for both cutting heads 31 and 32. The heads 31 and 32 are set at left and right separated positions, and the feeding position regulating piece 50 projects to the flange abutting position.

In the above state, for the workpiece W whose end face is cut at right angles to the longitudinal direction, the cutting head 31 is first adjusted by the front and back adjustment means, and the spindles 31a to 31c are moved to the other cutting heads 32.
It is set so that it is in line with the spindles 32a to 32c. This adjustment operation is performed by reading the index 37 on the scale plate 36, and the index 37 is set to "0" on the scale plate 36. When the longitudinal adjustment of both cutting heads 31 and 32 is completed in this way, the workpiece W is fed onto the roller conveyor 3, and moved forward while applying the flange a to the pressing plate 4 on the fixed side, and the end is moved to the feeding position. It is brought into contact with the regulating piece 50. When the feeding portion of the workpiece W is completed, the operating members (motor, cylinder) are operated in sequence by a control switch (not shown).

By operating the switch, first, the cylinder 12 of the clamping device operates the piston rod 12b in the extending direction, and the pressing plate 5 presses the other flange b of the workpiece W. As a result, the workpiece W is pressed against the pressing plate on the stationary side and is clamped and fixed. Next, the upper cylinders 13, 14 are operated, and the clamping pieces 6, 7 at the lower end of the piston rod engage with the upper ends of the flanges a, b, and the sloped surfaces 6a, 6b
In order to act on the inner edge of the upper end, flanges a and b
The upper end is pressed toward the pressing surfaces 4a, 5a and straightened vertically. Next, the lower cylinders 15 and 16
is activated, and the clamping pieces 8 and 9 press the lower ends of the flanges a and b from the sides toward the pressing surfaces 4a and 5a. Therefore, the lower end of the flange is also vertically corrected and fixed. Furthermore, the movement of the clamping pressure pieces 8 and 9 at this time causes the abutting docks 48 and 49 to follow and move in directions away from each other, thereby indicating the positions of both inner surfaces of the flanges a and b, respectively. Ru.

When the work W is corrected and clamped, the feeding position regulating piece 50 is retracted, and the motors M ₅ and M ₆ of the interval adjustment means are driven to move the cutting heads 31 and 32 at the open ends in the closing direction, respectively. Ru. As a result of this movement, the abutting dot 4
Limit switches LS ₁ and LS ₂ on the movable bases 21 and 22, respectively, come into contact with 8 and 49.
At this time, the motors M ₅ and M ₆ are stopped, and the cutting heads 31 and 32, that is, the cutter positions are determined. It goes without saying that the cutter positions at this time correspond accurately to both inner surfaces of the flanges a and b on the workpiece W, respectively.

Then, the motors M ₁ and M ₂ are driven to rotate the cutters 38, 38, 39, and 39 in the cutting direction, and then the motors M ₃ and M ₄ of the cutting feed means are driven to rotate the cutting heads 31 and 32. from the bottom position to the top. As a result of this movement, the beveling cutters 38, 38 and the scalloping cutters 39, 39 act on the work W in sequence, and in one stroke, the required beveling and scalloping are performed on both flanges and on both the joints of both flanges and the web. Processing can be done at the same time. (Refer to Fig. 4) After the cutting process is completed, by operating each operating member (motor, cylinder) in the opposite direction to return each means to its original standby state, the processed material can be taken out. can be easily done.

Next, a case of a workpiece W whose end face is cut obliquely with respect to the longitudinal direction will be described. in this case,
First, the flange a on the retracted side when seen from a plane is fed along with the pressing plate 4 on the stationary side, and the end of the flange a is set in contact with the feeding position regulating piece 50. After the clamping device A is operated to clamp the bridge at this position, the front and rear adjustment means are operated to adapt the cutters 38 and 39 of the cutting head 31 to the flange b on the projecting side. For adjustment, operate the handle 35 of the adjustment means and visually check the position of the indicator 37 corresponding to the numerical value on the scale plate 36 to make the settings to match the longitudinal dimension difference between the flanges a and b on both sides. Make it. Once the front and back settings of the cutter have been performed as described above, the spacing between the cutting heads 31 and 32 is set as described above, and then the cutter is rotated and raised in the cutting direction to perform cutting. make it possible to do so. In this way, by adjusting and setting the pair of left and right cutting heads in both the front and back and left and right directions, the edges can be cut diagonally, and the required cutting process can be performed simultaneously in one stroke even when the bevel scrap positions are different. It is something that can be done. (See Fig. 5) In the above embodiment, the cutting heads 31, 32
Although only two of the three spindles were used, if necessary, the upper one can be equipped with a drive cutter, and the middle spindle can be equipped with both a scalloped cutter and a beveled cutter. It can also be installed. Furthermore, although only one of the two heads is provided with a longitudinal adjustment means for the cutting head, it may be provided in both heads respectively. In addition, the guide and moving base of the interval adjustment means and the front and rear adjustment means can be provided with a locking means after adjustment, thereby greatly damping the vibration of the cutter during cutting. It is. In the embodiment, only the cutting head was adjusted in the front-rear direction in order to simplify the structure, but instead of this, the entire column to which the cutting head is attached may be moved.

(Effects of the Invention) As is clear from the above description of the embodiments, according to the present invention, a pair of cutter means are provided on both sides corresponding to the flanges on both sides of the H-section steel, and the interval between these cutter means is adjusted. The cutter position can be adjusted to correspond to the flange width by means of a longitudinal adjustment means, and the cutter position can be set at each longitudinal end of the flange on both sides of the flange by adjusting the cutter position by means of a longitudinal adjustment means. Cutting can be performed under these setting conditions. By doing this, it is possible to simultaneously process two locations on both sides in one process, not only for materials whose end surfaces are cut at right angles, but also for materials whose end surfaces are cut obliquely. Therefore, it is possible to achieve the effect that the efficiency of the bevel work can be greatly improved.

[Brief explanation of drawings]

The drawings show an embodiment of the groove scalloping device of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a partially cross-sectional plan view, Fig. 3 is a side view, and Fig. 4 is a partially cutaway front view. Fig. 5 is an explanatory diagram of processing an H-beam steel whose edges are cut at a right angle. Fig. 5 is an explanatory diagram of how an H-beam steel is machined whose edges are cut diagonally. 1: Frame, 2: Bed, 3: Roller conveyor, W: Work, a, b: Flange, c: Web, A: Clamp device, 4, 5: Press plate, 6,
7: Clamping piece, 8, 9: Clamping piece, 12: Cylinder,
B: Cutting device, 21, 22: Moving base, 27,
28: Lifting base, 30: Moving base, 31,3
2: Cutting head, 31a-31c, 32a-32
c: spindle, 38: beveling cutter, 3
9: Scallop processing cutter, _M1 to _M6 : Motor, 48, 49: Contact dock, 50: Feed position regulating piece, _LS1 , _LS2 : Limit switch.

Claims (1)

[Claims] 1. A pair of cutter means on both sides is arranged to correspond to both side flange ends and both joint ends of both side flanges and the web of the H-section steel, and the cutter spacing is adjusted in accordance with the width of the both side flanges in at least one of the cutter means. It is provided with an interval adjustment means and a longitudinal adjustment means for adjusting the cutter position in the longitudinal direction of the H-beam steel perpendicular to the interval adjustment direction, and further provided with a longitudinal adjustment means for adjusting the cutter position in the longitudinal direction of the H-beam steel, which is orthogonal to the interval adjustment direction, and further provided with a longitudinal adjustment means for adjusting the cutter position in the longitudinal direction of the H-section steel, which is perpendicular to the interval adjustment direction, and further provided with a longitudinal adjustment means for adjusting the cutter position in the longitudinal direction of the H-section steel, which is orthogonal to the interval adjustment direction. A beveling scalloping device for H-beam steel, characterized in that it is equipped with a cutting feed means for moving a cutter in the cutting direction.