JPH02218508A - Bevel scallop processing device for wide flange shape steel - Google Patents

Abstract

PURPOSE:To make it possible to accurately set up the position of the various kinds of slope members by controlling the action of a fore-and-aft regulating means in connection with a front and a rear carrying means based on the detected signals of each detecting switch disposed to each position corresponding to the flange of a wide flange shape steel. CONSTITUTION:A work piece W is rested on a front carrying means Aa so as to be transferred to the sides of cutting heads Ba and Bb by a drive motor M1. When a flange (a) comes in contact with one abutting piece 62 at the cutting head Bb side while actuating a detecting switch Sa, the reversible motor M3 of a fore-and-aft regulating means is rotated in the normal direction so that the cutting head Ba side is moved forward. In this case, when a flange (b) comes in contact with the other abutting piece 62 at the cutting head Bb side while actuating a detecting switch Sb, the reversible motor M3 and a drive motor M1 are suspended, the both of the flanges (a) and (b) of the work piece W are restricted by the abutting pieces 62 so as to set up a feed-in position so that the work piece W is clamped by clamping means Da and Db. The respective abutting pieces 62 are evacuated from their restricted positions by means of a hydraulic cylinder 64 thereafter so that the work piece W is processed by the cutting heads Ba and Bb.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to various H-shaped structural members whose end faces are cut at right angles or at an angle, and which have required grooves at the front and rear ends in the longitudinal direction. This relates to a processing machine that performs scalloping and scalloping, and focuses on controlling the movement of the workpiece by means of a conveying means and controlling the positioning of the cutting means so that efficient cutting can be performed.

(Prior Art) Based on the request to perform groove scalloping on both the front and rear ends of H-beam steel, the present applicant previously filed a patent application filed in 1986-18.
No. 964 (Japanese Unexamined Patent Publication No. 62-176707) proposed a "beveling device for H-shaped steel, etc."

The main points of this beveling device are: [a front transport means that transports the workpiece at least rearward; a conveying means, a series of material feeding paths formed by the front and rear conveying means, a cutter-type cutting device that is driven reciprocally in a direction perpendicular to the material feeding path, and the material feeding path. a front end positioning means that protrudes to the front end of the workpiece to set the cutting front end of the workpiece to a predetermined cutting position; a rear end positioning means that also projects to the material feeding path and sets the cutting end of the workpiece to a predetermined cutting position; and the cutting device. The front end of the workpiece is clamped and fixed near the reciprocating path of the workpiece. A front clamp means and a rear clamp means for clamping and fixing the rear end of the workpiece.

When performing bevel scalloping on the front end of the workpiece, the workpiece on the front transport means is sent rearward by the drive of the same means, the front end is regulated by the front end positioning means, and then fixed by the clamp means. . The front end of this clamped workpiece is then processed by a cutting device.

When the rear end of the workpiece is to be machined after the front end machining described above is completed, the workpiece is sent backward one step by driving the front and rear conveyance means, and then the workpiece is transferred forward by reversing the rear conveyance means. Then, the rear end of the workpiece is regulated by the rear end positioning means, and then fixed by the clamp means. Then, the rear end of this clamped workpiece is processed by a cutting device.

After the required bevel scalloping has been performed on both longitudinal ends as described above, the workpiece is discharged backward by the conveyance means for processing, which facilitates the work while transporting the workpiece in a fixed direction. This made it possible to achieve greater efficiency.

(Problems to be Solved by the Invention) By the way, when performing the above-mentioned groove scalloping, each cutting dimension is generally set as follows.

That is, as shown in FIG. 12, with the outer tips of flanges a and b (indicated by points P and Q in the same figure) as a reference, the drive cutter 33 drives the flanges a and b by dimension 1 from there.
a and Hb are determined, and the root surface heights Ra and Rb are set using the groove cutter 35 for the root surface cut by this driving process. Further, the web C is scalloped by a scallop cutter 34 using the inner end of the root surface as a reference.

Here, in the above-mentioned beveling machine, when focusing on the configuration of the front end and rear end positioning means for setting the above-mentioned cutting dimensions, these two positioning means correspond only to one flange, and both end faces are under the same conditions. This is a simple configuration suitable for certain right-angle cut steel materials.

However, among the H-beams used as building structural members, there are not only those with right-angled end faces, but also many gradient members with inclined end faces. Of course, as shown in Figure 8, the machining positions on the flange A side and the flange B side are shifted in the front and back direction, and the required accuracy cannot be achieved by simply regulating the position on either side. Cutting cannot be performed. In addition, on the flange b side, there is a deviation L between the 7-lunge contact position R of the positioning means and the processing reference point Q.
This also caused the problem that accurate cutting could not be performed. In addition, this processing device has a disadvantage in that the structure is complicated because positioning means are provided separately for the front and rear of the same flange.

The present invention has been made by focusing on the various problems of the above-mentioned prior art, and is capable of accurate position setting for various graded materials and efficient cutting of both front and rear ends. H that can simplify the configuration of the positioning means.
The object of the present invention is to provide an apparatus for scalloping a section steel.

(Means for Solving the Problems) In order to achieve the above object, a groove scalloping device according to the present invention is configured as follows.

That is, the gist of the present invention is to expose the end portions of both flanges of the H-beam steel and the joint end portions of the flanges on both sides and the wear to the path of a cutting means provided with a group of cutters, and to In a processing machine that moves in a predetermined cutting feed direction to perform required beveling and scalloping on the end, the H-beam is transferred in the longitudinal direction to the front and rear of the passage path of the cutting means. At the same time, a front and rear conveying means is provided on either side of the cutting means to adjust the cutting position of the 1-1 section steel in the conveying direction, and a front and rear adjusting means is provided on either side of the cutting means to adjust the cutting position of the 1-1 section steel in the conveying direction. One switch actuating member is provided at each corresponding position of the flange on the section steel,
Detection switches are provided oppositely to the front and contact portions of the switch actuating member, and the detection signals from these detection switches are used to control the operations of the longitudinal adjustment means and the front and rear conveyance means in relation to each other. be.

(Function) When an H-beam steel material is supplied onto the front conveyance means and the conveyance means is driven backward, one of the flanges on both sides of the workpiece comes into contact with the corresponding switch actuating member.

When the cutting means on the longitudinal adjustment side is provided with a detection switch corresponding to the actuating member, the cutting means moves in the same direction as the direction in which the workpiece is transferred. Since the workpiece is still being transported rearwardly, this movement causes the other flange to abut the corresponding switch actuating member. At this time, another detection switch outputs a detection signal, and the driving of the conveyance means and the longitudinal adjustment means is stopped.

Therefore, it is possible to set the workpiece and both cutting means at positions regulated by both detection switches.

Furthermore, when the front and rear fixed side switch actuating members operate first due to the supply of H-shaped steel, the detection switch stops driving the conveying means. Then, the back-and-forth adjusting means drives one of the cutting means in the opposite direction to the transport direction. This movement is stopped when the other switch actuating member abuts the other flange and the detection switch is actuated. Therefore, in the same manner as described above, it is possible to set the workpiece and both cutting means to the regulation positions of both detection switches.

In the above state, if the workpiece is clamped and both cutting side means are fed for cutting, the required beveling and scalloping can be performed on the longitudinal front end of the H-section steel.

The workpiece whose front end has been processed can be transported rearward by the cooperation of the front end transport means and the rear transport means. When the workpiece placed on the rear transport means by the above-mentioned transfer is returned to the front by the reverse drive of the means, one of the flanges first comes into contact with the switch actuating member and actuates the detection switch. The switch actuating member described above acts in the opposite direction to the movement of the front end of the flange described above, and a detection switch corresponding to this movement outputs a detection signal.

That is, although the switch actuation member described above is the same as that described above, the actuation direction is different, and the corresponding detection switch is naturally different. However, the movements of the conveyance means and the front-rear adjustment means controlled by the detection switch are substantially the same as described above, only the direction is different.

When the detection switch corresponding to the switch actuating member is provided in the cutting means on the longitudinal adjustment side, the longitudinal adjustment means moves the cutting means in the same forward direction as the workpiece. This movement and the transport movement of the rear conveying means are stopped when the other switch actuating member detects the other flange.

Further, when the front and rear fixed side switch actuating members are activated first, the movement of the workpiece is thereby stopped. and,
The back and forth adjustment side transports the cutting means in a direction opposite to the transport direction, and this movement is stopped when the other flange end actuates the switch actuating member.

Therefore, similarly to the front end of the workpiece described above, it is possible to set the H-shaped steel, or even the cutting means, at the position regulated by both detection switches.

Further, by adjusting the operating position of the detection switch relative to the switch operating member in the front-rear direction, it is possible to adjust the set position of the cutting means corresponding to the end of the workpiece.

Therefore, it is possible to correct the deviation dimension of the cutting reference point, and by active use, it is possible to arbitrarily set the cut-in dimension.

(Example) Hereinafter, an example of the groove scallop processing apparatus according to the present invention will be described.

Fig. 1 is a plan view showing the overall configuration, in which 1 is a machine base and Aa is a front conveyance means disposed on the front side (right side of the figure) of the machine base 1; The means Aa is composed of a roller conveyor in which a large number of rollers 2a... are arranged in parallel. M is a chain or gear type transmission means (not shown)
A first drive motor linked to the rollers 2a through drives the front conveyance means Aa rearward (from right to left in the figure).

Ab is the rear conveyance means 2b installed on the rear side of the machine base 1.
... is a large number of rollers that constitute the rear conveyance means Ab.
A second drive motor linked to the rollers 2b through the MJ transmission means selectively drives the rear conveying means Ab rearward and forward. The H-shaped steel material W (hereinafter simply referred to as work W), which is a workpiece, has flanges a and b on both sides.
The paper is transported on the front and rear transport means Aa and Ab with the paper perpendicular to the transport surface.

Next, reference numeral 3 denotes a longitudinal slide guide provided on one side of the machine base 1 (lower position in the figure), and a longitudinally movable base 4 is provided on this slide guide 3. The means for adjusting the back and forth movement base 4 back and forth will be described later. In addition, a gate-shaped frame 5a is erected on the back-and-forth movable base 4 via a pivot shaft (not shown) at the base, and one cutting head Ba can be raised and lowered via a lifting guide 6a provided on the inner surface. hold it freely.

Reference numeral 7 denotes a slide guide in the left-right direction provided on the other side of the machine base 1 (in the upper position in the figure), and a left-right moving base 8 is provided on this slide guide 7. A means for adjusting the left and right movement base 8 laterally will be described later. A circular frame 5b is also erected on the left-right movable base 8 via a pivot (not shown) at the base, and the other cutting head Bb is held by the inner elevation guide 6b so as to be movable up and down.

The above-mentioned one cutting head 3a and the other cutting head Bb are located at an intermediate portion between the above-mentioned front and rear conveyance means Aa and Ab and are moved up and down. Note that the above-mentioned cutting heads Ba and Bb are symmetrical in their pair of left and right configurations.

Therefore, individual explanations including their internal configurations will be omitted, and the cutting heads will be collectively shown in FIG. 2 with respect to one cutting head Ba side.

That is, 9 is a helad case, 10.10 is a bearing case provided on both sides of the head case 9, 11 is a first spindle provided in the case by bearings 12.13, and 14 is a first spindle provided in the case by bearings 15.16. The second spindle 17 is a rotating cylinder provided in the case by bearings 18 and 19, and these are the first and second spindles.
The spindles 11, 14 and the rotary tube 17 are arranged in parallel at predetermined intervals, and each of the external gears 20 to 22,
The idle gear (not shown) that meshes with these
They are rotated in unison.

Further, the rotary cylinder 17 is equipped with a third spindle 23 equipped with the following slide mechanism. That is, the rotating cylinder 1
A third spindle 23 is tightly fitted into the third spindle 7 and connected by a spline 24 to allow free movement only in the axial direction. Then, the shaft end is linked to the slide operating section via the bearing 25.

26 is a passive nut provided at the shaft end 27 is a mounting base
Reference numeral 28 denotes a motor with a speed reducer provided on the mounting base 27, and its output shaft is provided with a feed screw shaft 29 in the direction of the spindle axis.

The output of the motor 28 with a speed reducer is applied as a sliding motion to the third spindle 23 via a transmission system of a feed screw shaft 29 and a passive nut 26.

The first to third spindles 11.14.23 described above are
One end protrudes from the head case 9, and cutter attachment parts 30 to 32 are provided in this part. Above mounting parts 30 to 32
From above, a cylindrical drive-in cutter 33, a hemispherical scallop cutter 34, and a conical bevel cutter 35 are installed.
Attach. Reference numeral 36 denotes a drive motor for each spindle 11, 14, 23, which rotates the cutter group in a predetermined direction. The spindles 11, 14, and 23 described above are arranged so that their rotational axes are on the same line when viewed from the vertical direction.

Next, the cutting feed means C for transporting the cutting heads 3a, 3b in a predetermined cutting feed direction will be explained with reference to FIG. 3 and the like.

This cutting feed means has the same configuration in each of the cutting heads Ba and Bb.

37 is a motor with a reducer attached downward to the upper end of the gate-shaped frame 5a1 (5b). 38 is a lifting guide 6a, (
A feed screw shaft 39 provided on the output shaft of the motor 37 in the same direction as 6b) is a passive nut fixed to the cutting head Ba, (Bb).

The cutting heads 3a, (Bb) are moved in the vertical direction by the forward and reverse rotation of the motor 37 with a reduction gear, and perform cutting on the workpiece W when moving upward from the lower end.

Note that this motor type cutting feed means can be replaced with a hydraulic cylinder type.

Next, the clamping means Da-[)d for clamping and fixing the workpiece W during cutting will be explained with reference to FIG. 4 and the like.

This clamping means has a function of clamping the upper and lower ends of both flanges a and b from the same upper and lower directions, and is fixedly held on the circular frames 5a and 5b, respectively, and the cutting head B
a.

They are provided on the front side and the rear side, respectively, with the passage path of 8b interposed therebetween.

The clamping means [)a, [)b provided on the front side and the clamping means [)c, [)d] provided on the rear side have the same configuration, and therefore, these will be explained together with respect to the front side. .

That is, 40 and 41 are lifting guides provided on the inner surfaces of one and the other gate-shaped frames 5a and 5b, respectively.
42.43 and 44.45 are the above lifting guides 42.4
These clamp claws 42 to 45 are actuated by separate hydraulic cylinders 46 to 49, respectively. The above clamp claw 42~
45 constitutes a flange clamping part by a vertical reference contact surface e facing outward and a sloped pressing surface f facing inward, and the pressing surface f is attached to the outer edge of flanges a and b. Reference contact surface e
are in contact with the inner surfaces of flanges a and b, respectively, and the workpiece W
Clamp.

Next, the distance setting means E for adjusting the corresponding positions of both cutting heads Ba and Bb according to the width of the workpiece W, that is, the left side of the flanges a and b, will be explained. This interval setting means E
is constituted by means for adjusting the movement of the left-right moving base 8 described above in the same direction. (See Figures 3 and 5) 5
0 is a feed screw shaft provided at the lower part of the left-right moving base 8 in the same direction as the slide guide 7. 51 is a nut member screwed onto the feed screw shaft 50. 52 is a holding member on the side of the left-right moving base 8 that accommodates the nut member 51. Cylinder 53. 53 is a compression spring engaged with both sides of the nut member 51. 54 is the nut member 51.
The detent pin 56 that is locked in the slide groove 55 is a forward/reverse motor with a speed reducer connected to the feed screw shaft 50.

When the forward/reverse motor 56 rotates forward, the cutting head Bb is moved to the right (downward in FIG. 1) via the left-right moving base 8 and the other portal frame 5b, and both cutting heads Ba, Close the distance between Bb. Also, when rotating in the opposite direction, the distance is separated.

Then, during the above interval adjustment, the clamping means [)
When the distance between a and Db (DclDd) is set to correspond to the flanges a and b of the workpiece W, the movement is stopped. The rotation of the forward/reverse motor 56 is controlled by a forward/reverse operation switch.

Next, the longitudinal adjustment means F that adjusts the movement of one cutting head Ba in the longitudinal direction and adjusts both cutting heads Ba and Bb to the slope of the workpiece W will be described. This longitudinal adjustment means F includes means for adjusting the movement of the longitudinal movement base 4 described above in the same direction.

Reference numeral 57 denotes a feed screw shaft provided at the bottom of the longitudinally movable base 4 in the guiding direction of the slide guide 3. 58 indicates a passive nut M on the longitudinally movable base 4 side screwed onto the feed screw shaft 57.
, is a reversible motor with a speed reducer connected to the feed screw shaft 57. When the reversible motor M is rotated forward, one cutting head Ba is moved backward (first left direction) via the back-and-forth movable base 4 and the circular frame 5a, and both cutting heads Ba, Bb The displacement interval is widened, and the displacement interval is shortened when rotating in the opposite direction.

Next, a detection switch Sa-Sd for controlling the drive of the reversible motor M1 of the longitudinal adjustment means F, the drive motor M of the front conveyance means Aa, and the drive motor Mp of the rear conveyance means Ab, and a switch for operating this detection switch. Operating member G
a and Qb will be explained with reference to FIG. 6 and the like.

The above-mentioned switch actuating member is provided by utilizing the structure of the contact piece that regulates the feeding tip position of the workpiece W, and corresponds to the workpiece W being sent backward and the workpiece W being returned forward, respectively. In addition, the switch operating member G
a, Qb and the detection switch 3a-36 are connected to the flanges a on both sides.
, b, respectively, the spindle head Ba side and Bb
placed at the top of the side.

The switch actuating members Qa, Gb are symmetrical in their pair of left and right configurations. Therefore, individual explanations including their internal configurations will be omitted.
This is shown in Figure 6 etc. The other switch actuating member Q
Regarding b, only the locations of the detection switches Sb and Sd are shown.

In the figure, 59 is a mounting base provided on the upper part of the spindle head Ba, 60 is an operating shaft supported freely to rotate and slide on bearings 61, 61 of the mounting base 59, and 62 is a passive arm 63 attached to one end of the operating shaft 60. The abutment piece 62 attached through the cutter is placed in the passage path of the cutter so that both the front and rear surfaces correspond to the flanges a and b of the workpieces w and w''.6
Reference numeral 4 denotes a hydraulic cylinder connected to the other end of the operating shaft 60 via a ball joint 65, which sets the contact piece 62 at a position corresponding to the flange when the screw 1 to the rod is extended, and is moved there when the screw is retracted. evacuate from.

In the above, the axis of the operating shaft 60 is the spindle 1
It is set to match the axes of 1, 14, and 23,
Further, the abutting piece 62 has a distance between both sides of the abutting piece 62 and the cutter 3.
It is set almost equal to the diameter of No. 3.

Reference numeral 66 denotes an operating arm provided at the other end of the operating shaft 60, and this operating arm 66 rotates in synchronization with the abutment piece 62. The workpieces w and w1 are detected using the movement of the actuating arm 66, and a detection switch described later corresponds to the rotation range thereof.

67 and 68 are slide guides 69 and 7σ provided in the movement direction of the operating arm 66, that is, in the front-back direction.
are moving pieces engaged with the slide guides 67 and 68, respectively; 71 and 72 are feed screw shafts screwed into the nuts of the moving pieces 69 and 70; and 73 and 74 are operation buttons provided on the feed screw shafts 71 and 72, respectively. Mami 75 and 76
is a dock arm provided at each end of the movable pieces 69, 10 so as to sandwich the above-mentioned operating arm 66. and 80
is imparted with a rotational tendency by means of which the free end projects towards said actuating arm 66. Reference numerals 81 and 82 are one ends of the stoppers of the movable pieces 69, 70 that come into contact with the dock arms 75, 76 and restrict the rotation ends thereof.

Next, Sa and Sc are moved via the mounting brackets 83.84 to the moving pieces 69.701. : Detection switches are attached respectively, and the contacts are made to correspond to the dock arms 75 and 76.

Therefore, the dock arm 75 prepared for the moving piece 69.70
．． 76 and the detection switch 5aXSc are connected to the operation knob 73.
74, the corresponding position with respect to the actuating arm 66 is adjusted.

85 and 86 are dimension scale plates provided on the mounting base 59
87 and 88 are indicators attached to the moving pieces 69 and γ0, respectively, corresponding to the dimension scale plates 85 and 86. The dimensional numerical values of the dimensional scale plate 85.86 indicated by the indicators 87.88 are set to indicate the amount of movement of the actuating arm 66 in the longitudinal direction.

Next, returning to FIG. 1, Aa- and Aa- are front relay means Ml- and Ml in which the transport surface of the front transport means Aa extends close to the passage path of the cutting heads [3a, 13b].
' is a drive motor that drives the relay means Aa=, Aa-, and these motors M, -1M, - are the first drive motor M,
It is driven in conjunction with. Ab' and Ab'' are rear relay means M in which the conveyance surface of the rear conveyance means Ab extends forward.
2-1 is a drive motor for the relay means Ab-Ab-, which is driven in conjunction with the second drive motor M2.

FIG. 11 is an electric control circuit diagram in which circuit elements include the detection switches 5a to 8d, the reversible motor M1 of the front-rear adjustment means F, the drive motor M3 of the front conveyance means Aa, and the drive motor MA of the rear conveyance means Ab. It is.

When the manual operation switch 5W-2 is operated, the normal rotation circuit j+ of the drive motor is closed, and the normal rotation magnet coil MS
-IF is excited and the drive motor M rotates forward. This drive motor M.

Due to the rotation of , the workpiece W on the front transport means Aa is
It is transported towards the rear.

Here, when one of the detection switches 3a detects the flange a first, the forward/reverse circuit of the reversible motor is closed, the forward magnet coil MS-3F is excited, and the reversible motor Mμ is rotated forward. Due to this normal rotation, one cutting head Ba including the detection switch 3a is transferred rearward. In this state, when the other detection switch Sb detects the flange b, the normal rotation circuit of the drive motor! 7. The forward rotation circuits 12 of the reversible motors are both opened, and both motors M3 and MI are stopped.

In the above, when comparing the transport speed of the workpiece W by the drive motor M and the transport speed of the cutting head Ba by the reversible motor M3, the former is set to be faster than the latter or equal to it.

Further, when the workpiece W is transferred backward from the front transport means Aa, if the other detection switch sb detects the flange b first, the forward rotation circuit of the drive motor is activated! , opens and the drive motor M stops. Subsequently, the reversible motor's reversing circuit is closed, the reversing magnet coil MS-3R is energized, and the reversible motor M is reversed. By this reversal, one of the cutting heads Ba including the detection switch Sa is moved forward. As a result of this transfer, when one detection switch Sa detects the flange a, the reversing circuit 23 of the reversible motor is opened, and the reversible motor M is stopped.

Further, when the manual operation switch 5W-5 is operated, both the normal rotation circuit ll of the drive motor in the front conveyance means Aa and the normal rotation circuit of the drive motor in the rear conveyance means Ab are closed, and the respective normal rotation magnet coils MS are closed. -IF, MS
-3F is energized and drive motors M1 and Mj rotate forward. By rotating this drive motor M,, M, (7), the work W
is fed from the front transport means Aa onto the rear transport means Ab.

When the end of the work W reaches the rear transport means Ab, the photoelectric switch SL detects passage of the end, and the normal rotation circuit! Potatoes are cultivated.

Next, when the manual operation switch 5W-3 is operated, the drive motor Mp reverse circuit! is closed, the reversing magnet coil MS-2R is energized, and the drive motor Mj is reversely rotated. By this rotation of the drive motor Mp, the workpiece W- on the rear transport means Ab is transported forward.

Here, when one of the detection switches Sc detects the flange a first, the reversing circuit of the reversible motor is closed, the reversing magnet coil MS-3R is energized, and the reversible motor M3 is reversed. Due to the reversal, one cutting head Ba including the detection switch SC is transferred forward. In this state, when the other detection switch Sd detects the flange b, the reversing circuit of the drive motor Mp and the reversing circuit of the reversible motor M1 are both opened, and both motors M
Oh MIfi stops.

The relationship between the feed speed of the workpiece W by the drive motor M and the transfer speed of the cutting head 13a by the reversible motor M is the same as the relationship between the drive motor M and the reversible motor M3 described above.

Further, when the workpiece W' is transferred forward, when the other detection switch 3d detects the flange b first, the reverse rotation circuit of the drive motor is opened and the drive motor Mp<ff
Stop. Subsequently, the normal rotation circuit e of the reversible motor is closed, the normal rotation magnet coil MS-3F is energized, and the reversible motor M rotates in the normal direction. Due to this normal rotation, one of the cutting heads Ba including the detection switch Sc is transferred rearward. As a result of this transfer, when one of the detection switches SC detects the flange a, the normal rotation circuit of the reversible motor is opened and the reversible motor M is stopped.

In addition, when operating the manual operation switch 5W-5 in the above, the operating contact piece 62. of the detection switch 3a-36.
62 shall be retracted from the protruding position. Further, in each of the configurations described above, each operating member such as the other motor and the hydraulic cylinder is operated in a timely manner by command signals from an electric control circuit other than those shown.

The configuration of the groove scallop processing apparatus for H-section steel according to the present invention is as described above. Therefore, by operating as described below, it is possible to perform efficient double-end machining that accurately corresponds to various graded materials.

That is, at the start of machining, both cutting heads Ba and B
It is assumed that b is arranged without deviation in the front-rear direction as shown by the solid line in FIG. And both front heads Ba, a
b is in an open state by moving to one end of the other gate-shaped frame 5b, and is set at the lower end position in the cutting feed direction.

Each clamp claw 42 in the clamping means [)a-[)d
45 are at the stroke starting ends, and the contact pieces 62 and 62 of the workpiece W are at the protruding position.

To process the front end of the work W, first, the forward/reverse motor 56 of the interval setting means E operates the front cutting head Bb in the opening direction, and the clamp claws 42 to 45 are attached to the flanges a and b of the work W. Configure to correspond. Then, as shown in the figure, the workpiece W is shifted to one side and the front transport means A
a, and is transferred forward, that is, toward the cutting heads 8a and Bb side, by activation of the drive motor M1. (FIG. 9A) As the workpiece W moves, the flange a first comes into contact with the abutment piece 62 on one of the cutting heads 3a, causing it to rotate and actuating the detection switch Sa. At this time, the reversible motor M of the longitudinal adjustment means F is driven in forward rotation to move the cutting head 13a side forward. (FIG. 9B) During this movement, the flange b comes into contact with the contact piece 62 on the other cutting head Bb side, causing it to rotate and actuating the other detection switch sb.

At this time, the reversible motor M3 and the drive motor M stop, and the workpiece W connects the ends of both flanges a and b to the contact pieces 62 and 62.
The feeding position is set according to the regulation. Also, during this positioning, the front clamping means [)a, [)b]
is activated, and the workpiece W is clamped and fixed. (Fig. 9C) By the way, in the groove scalloping of the above-mentioned gradient material (work W), as shown in Fig. 8, the outer tips of flanges a and b (indicated by points P and Q in the figure) are Each cutting dimension is set as a reference.

Therefore, on the trailing flange b side, a dimensional deviation occurs between the abutting end and the reference point Q. This deviation dimension is 1=t・where t is the flange thickness and θ is the slope.
It is expressed as tanθ. Therefore, the other cutting head Bb
In order to perform the harrowing while matching the reference point with the reference point, it is necessary to set the above-mentioned deviation dimension in advance using the dimension scale plate 86 and to correct the position of the detection switch Sb and the position of the restriction end.

After completing the positioning of the workpiece W and the cutting head Ba as described above, the hydraulic cylinder 64
．． 64, each contact piece 62, 62 is retracted from the normal position t111, and then each cutter 33 to 35 is rotated to feed the cutting heads Ba and Bb upward. Due to this rise, required machining such as driving-in machining V, scallop machining W, and beveling machining X is performed on both ends of the workpiece W. (Fig. 1Q) When the cutting heads Ba, Bb reach the ascending end and the cutting process is completed, the cutting heads are quickly returned to the descending end, and the clamping means Da, Db are released. Then, the front and rear transport means Aa and Ab are rotated backward to transfer the workpiece W onto the rear transport means Ab, and stop at this position. (
FIG. 9D) With the above moving operation, the rear end of the workpiece W' corresponds to the cutting heads Ba and Bb, so this workpiece W' is now moved by the reverse drive of the rear transport means Δb. Move forward. If the rear end of the stiff workpiece W' is cut at right angles to the end face, for example, the flange a comes into contact with the contact piece 62 on one cutting head Ba side, and rotates it in the anti-λ/j direction. Detection switch SC
Activate. (Fig. 9E) At this time, the longitudinal adjustment means F
The reversible motor Mp reverses and moves the cutting head 3a backward. Therefore, the workpiece W' moves roughly backwards with its other end in contact with the contact piece 62. During this movement, the flange b operates the other detection switch Sd, thereby causing the cutting head to 3a and the conveying means Ad stop, and the positioning of the workpiece W- and the positioning of the cutting head Ba are completed.Then, the rear clamping means [)c, [)
d is activated, and the workpiece W- is clamped and fixed. (9th
Figure F) If the end face of the workpiece W' is at right angles as shown above,
Since tan90'-Q is obtained, the deviation dimension=0, and therefore no correction is required for the reference points P and Q.

The cutting process after the work clamp is performed in the same manner as the front end process. After the cutting is completed, the workpiece whose front end and rear end have both been machined is sent out to a carry-out conveyor (not shown) by the rear conveyance means Ab at the rear, and is processed there.

Regarding the illustrated workpiece W, the required groove scalloping can be performed on both the front and rear ends by repeating the same operation.

However, in the case of a workpiece having a symmetrical shape to that described above, that is, the front end is at a right angle and the rear end is sloped, the operating order of the detection switches operated by the abutting ends 62, 62 is different from that described above. That is, in this case, the flange b side is the other cutting head B.
The contact piece 62 on the b side is contacted first, and the detection switch Sb (
Sd) works.

In this case, the front or rear transport means will be △
a (Aai stops and the workpiece feed position is determined.

Next, one of the cutting heads moves rearward or forward in a follow-up manner, and when the contact piece 62 detects the flange a due to this movement, the movement of this one cutting head stops.

Therefore, in this case as well, the feeding position of the workpiece and the positioning of the cutting head can be accurately determined by the contact piece and the detection switch.

In the above embodiment, when the detection switch on one of the cutting heads is activated first, the cutting head is moved forward or backward in response to the detection switch in accordance with the movement of the workpiece. When the detection switch on the other cutting head side detects the flange b during this movement, the following movement is stopped and the position of one cutting head is set.

However, U-turn control, that is, the cutting head is moved one step forward or backward from the above-mentioned stop position,
This U-turn control method allows more accurate positioning of the cutting head by moving it at a very slow speed in the opposite direction and stopping when the detection switch is activated by flange a. It can be incorporated into a control circuit and employed as appropriate.

In addition, by using variable speed drive motors that drive the front and rear conveyance means and setting the deceleration range close to the cutting head, it is possible to reduce workpiece inertia and improve positioning accuracy. .

Generally speaking, in one embodiment, the switch actuating member is rotatable and corresponds to the front and rear ends of the workpiece, but the switch actuating member may also be a reciprocating stroke type to achieve the same effect.

(Effects of the Invention) As described in detail above, the groove scalloping device of the present invention has a front section that transfers the H-beam steel in the longitudinal direction to the front and rear portions of the passage path of the cutting means consisting of a pair of both sides. A conveyance means and a rear conveyance means are respectively provided, and a back and forth adjustment means for moving and adjusting the cutting position in the direction of conveyance of the workpiece is provided on one of the cutting means sides, and roughly on each cutting head side. A switch operating member is provided at a position corresponding to the flange of the H-section steel, and detection switches are provided oppositely at the front and rear parts of this switch operating member, and detection signals from these detection switches are used to control the longitudinal adjustment means, the front and rear parts. The conveying means are operated in relation to each other. Therefore, if the flange positions on both sides of the sloped material are unexpectedly different, the detection switch detects this and
It is possible to automatically position the workpiece and the cutting means. Furthermore, since the same switch operating member is used, the front end and rear end of the workpiece can be handled under the same conditions, allowing accurate positioning and further simplifying the configuration.

Furthermore, by appropriately operating the front and rear conveying means in forward and reverse directions, the front and rear ends of the H-section steel can be made to correspond to the cutting means, allowing efficient cutting work to be carried out.

Furthermore, since the front and rear detection switches are moved and adjusted in correspondence with one switch operating member, it is possible to easily correct the cutting position without changing the reference point.

[Brief explanation of the drawing]

The drawings show an embodiment of the H-section steel beveling scallop processing apparatus according to the present invention, and FIG. 1 is a partially cross-sectional plan view showing the overall configuration. FIG. 2 is a configuration of the cutting head and switch actuating member. Fig. 3 is a side view showing each component provided on the base on the left and right side. Fig. 4 is a front view showing the structure of the clamping means. Fig. 5 is a longitudinal sectional front view of the feeding mechanism in the interval adjusting means. 6 and 7 are a partially longitudinal side view and a plan view showing the structure of the switch actuating member and the mounting state of the detection switch. FIG. 8 is an explanatory diagram showing the shape of the gradient material in the H-section steel. Figure 9F is an explanatory diagram of the groove scalloping operation. Figure 10 is a perspective view showing the machining shape of a gradient material. Figure 11 is an electrical control circuit diagram. Figure 12 is an explanatory diagram of machining an H-beam steel whose end face is at right angles. . Aa: Front transport means Ab = Rear transport means AaA
b”: Relay means M,: First drive motor M2: Second
Drive motor 3a, 3b: Cutting head C: Cutting feed means [)a-Qd: Clamping means E: Back and forth adjustment means F: Spacing adjustment means (3a, Qb: Switch actuation member W, W: H-beam steel (work) a, b: Flange C leek nib 4: Post movable base 5a, 5b: Portal frame 8: Left and right slide base 33, Driving cutter 3
4 Varnish carving cutter 35: Bevel cutter 42-4
5: Clamp claw M,: Reversible motor 5a-3d: Detection switch 60: Operating shaft 62: Contact piece 66: Operating 7-
15.76: Dock arm 81.82: One end of stopper 85.86: Dimension scale plate 87.88: Index P
, Q: Reference point

Claims (3)

[Claims] (1) The ends of the flanges on both sides of the H-section steel and the joint ends of the flanges on both sides and the web are respectively exposed to the passage path of a cutting means equipped with a group of cutters, and these cutting means are moved in a predetermined cutting feed direction. A processing machine that performs the required beveling and scalloping on the end portion using the cutting means, front and rear conveying means for conveying the H-beam in the longitudinal direction to the front and rear of the passage of the cutting means. At the same time, a back and forth adjusting means for adjusting the cutting position in the transfer direction is provided on one of the cutting means sides, and further on each cutting means side, at a corresponding position of the flange on the H-beam steel,
One switch actuation member is provided respectively, and detection switches are provided oppositely to the front and rear parts of the switch actuation members, and the detection signals from these detection switches are used to control the operations of the front and back adjustment means and the front and rear conveyance means in relation to each other. A beveling scallop processing device for H-beam steel that controls the (2) Claim (1) wherein the front conveyance means is driven at least rearward by the first drive motor, and the rear conveyance means is driven forward and rearward by the second drive motor. ) A groove scalloping device for H-beam steel. (3) Claim (1) in which each detection switch installed opposite to the switch actuating member is movable and adjustable in the front and back direction.
The described groove scalloping device.