JPH02298410A - Head internal adjusting device of open point scallop process machine - Google Patents

Abstract

PURPOSE:To perform setting of a head interval according to the width of an H-steel automatically and accurately by providing a detection switch on the side of the other process head so as to detect the other flange end of the H-steel is detected, and by controlling a driving member of an interval adjusting means by the detected signal. CONSTITUTION:An H-steel (W) that is a material to be processed, with its one flange side being regulated by a guiding means (J), is moved in its longitudinal direction by a carrying means (A), and the flange position works as a reference side in adjusting interval. To this flange side, one process head Ba that is fixed corresponds. When a driving member Mb is driven in normal or reverse direction, a detection switch Lb, along with the other process head Bb, moves in a predetermined direction of interval adjustment. Owing to this movement, the other flange (b) end is detected by the detection switch, and the driving member is stopped by the detected signal, so as for the other process head to be located. The location of a process head can thus be performed property according to the width of a matter to be processed.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to groove scallop processing in which the interval between a pair of processing heads is automatically set to a predetermined position before feeding an H-section steel to a processing position. This invention relates to a machine head spacing adjustment device.

(Prior Art) For example, when H-shaped steel is used in a steel frame joint, beveling and scalloping are performed on the joint for the purpose of improving welding quality and workability.

In short, as shown in Fig. 10, notches Fa and Fb (scalloped) with arcuate inner parts are formed at both joints of the flanges a and b on both sides of the H-shaped steel W and the web C (scallop processing). Straight root surface Ra at the ends of flanges a and b
, Rb and sloped chamfered surfaces Va, vb (bevel processing) are formed.

As a processing machine for performing such beveling and scalloping, a double-headed beveling machine described in Japanese Patent Publication No. 58-22284 has been known.

This conventional beveling machine has a pair of left and right machining heads, and this machining head includes a clamping means for clamping both flanges of the H-section steel from the top and bottom, and a required beveling and scalloping process on the end. It is equipped with cutting means for processing.

In this processing machine, prior to processing, it is necessary to adjust the distance between the pair of processing heads in the left-right direction, that is, in the width direction of the H-section steel, and to set appropriate ramp positions and cutting positions.

The spacing adjustment for this purpose is performed by setting one processing head on a fixed side and setting the other processing head on a moving side, by associating a feed screw type drive means with this moving side.

(Problem to be solved by the invention) In this type of groove scalloping, workpieces of the same width are often processed continuously, but when the width dimensions are different,
Naturally, the interval must be adjusted each time.

For this adjustment, the width of the H-section steel (outside dimensions of both flanges) to be supplied to the processing head was measured in advance, and based on this measurement, for example, the drive means was adjusted by operating a hot button switch according to the display scale. However, this poses the problem that adjustment takes time and effort, and also causes other problems such as machining errors and machine damage due to measurement errors or setting errors.

In order to solve the above problems, a system has been developed in which the spacing is adjusted by NC control and the width of the workpiece is adjusted by program operation, but even with this, there is still a problem that manual settings are required. However, due to the high production cost, it was impossible to incorporate it into general-purpose machines.

The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a head spacing adjustment device that can automatically set the spacing with a simple configuration.

Means for Solving the Problems) In order to achieve the above object, the head spacing adjustment device for a groove scalloping machine of the present invention is configured as follows.

That is, the gist of the present invention is to provide a pair of machining heads on both sides equipped with a cutting means, a clamping means, etc. at the tip of an H-shaped steel that is transferred in the longitudinal direction, and to attach a pair of machining heads on both sides, each of which is equipped with a cutting means, a clamping means, etc. A back and forth adjustment means for adjusting the corresponding position in the longitudinal direction is provided on one side, and a distance adjustment means for adjusting the corresponding position in the width direction of the H-beam is provided on the other machining head side. A processing machine that performs the required beveling and scallop processing on the flange end and the joint ends of both flanges and the web, which includes a conveying means for longitudinally transporting the H-section steel and one flange on the front side of the processing head. A guide means for guiding in the transfer direction is provided, and on the other processing head side,
A detection switch is provided to detect the other flange end, and a detection signal from the detection switch is used to control the driving member of the distance adjusting means.

(Function) The H-shaped steel that is the workpiece is transported in the longitudinal direction with one flange side regulated by a guide means, and this one flange position should be used as the reference side for adjusting the interval. I can do it. Corresponding to this one flange side is one machining head that is fixed in the spacing adjustment direction.

When the drive member is driven in the forward or reverse direction, the detection switch moves in the predetermined interval adjustment direction together with the other processing head. As a result of this movement, when the detection switch detects the other flange end, the drive member is stopped in response to a detection signal, and the other machining head is positioned. Therefore, by arranging the detection switch in relation to its position, the cutting position of the processing head, and the clamping position, the processing head can be set at the appropriate position according to the width dimension of the workpiece. It's coming.

The above-mentioned detection switch recognizes the flange end of the workpiece by the operation of "no material" → "material" or "material" → "no material", and uses the detection signal to control the drive member of the distance adjustment means. Control the stop.

(Embodiment) Hereinafter, an embodiment of the distance adjusting device for the spatula 1 of the bevel scalloping machine according to the present invention will be described in detail.

Fig. 1 is a partial cross-sectional plan view of the bevel scallop processing device equipped with this interval adjustment device, Fig. 2 is a rear view, and Fig. 3 is a side view. A conveyance means A is provided in front of the head 2 (in the upper position in FIG. 1) for conveying an H-shaped steel W (hereinafter simply referred to as a workpiece), which is a workpiece, in the longitudinal direction. The above-mentioned conveyance means A is composed of a conveyor in which a large number of horizontal rollers 3 are arranged in parallel, and is reversibly driven by a drive motor Mc via a chain-type transmission means linked to each roller 3. The workpiece W is transported with both flanges a and b perpendicular to the transport surface.

Reference numeral J denotes a means for conveying the conveyor 1 provided on the upper part of the negative side of the roller 3. Pass one flange a through the gap between pieces 4.4 and guide it linearly.

Next, 5 is a front and rear guide disposed on one side of the head 2 (right position in the figure), 6 is a front and rear scoop 1 that is slidably engaged and held in the front and rear guide 5, and hese 7 is the front and rear guide 5.
The left and right guides 8 disposed on the other side of the head 2 (the left side in the figure) so as to be orthogonal to the left and right guides 7 are left and right slide bases that are slidably held on the left and right guides 7.

The means for adjusting the longitudinal slide base 6 and the means for adjusting the left and right slide bases 8 laterally will be described in detail later.

Above front and back slide base 6 and left and right slide base 8
One support frame 9 and the other support frame 10 extending upward are provided respectively.

Both support frames 9 and 10 are provided with the following components, such as cutting means, cutting feed means, clamp means, and ruler means, which constitute a pair of processing heads on both sides.

First, 11 and 11 are lifting guides provided on both support frames 9 and 10, respectively.Ba and Bb are the lifting guides 1
The cutting means Ba and Bb are symmetrical in their pair of left and right configurations. Therefore, regarding these cutting means Ba and Bb, only one cutting means Ba side is shown in FIG.

In the same figure, 12 is a herad case, 13.13 is a bear link provided on both sides of the herad case 12. Case 14 is a spindle (①) provided in the case by a bear link 15.16, and 17 is also a case by a bearing 18.19. The second spindle 20 provided inside is a hair ring 21
．． These first
, the second spindle 14.17 and the rotating cylinder 20 are installed in parallel at predetermined intervals, and each of the external gears 23 to 25
and are rotated simultaneously by an idle gear (not shown) meshing with these.

Further, the rotary cylinder 20 is equipped with a third spindle 26 equipped with the following slide mechanism. That is, the rotating cylinder 20
A third spindle 26 is tightly fitted to the third spindle 26 and connected by a spline 27 to allow free movement in the axial direction. Then, the shaft end is linked to the slide operating section via the bearing 28.

29 is a passive nut provided at the shaft end; 30 is a mounting base provided on the side of the helad case 12; and 31 is a mounting base 30.
The output shaft of the motor with a speed reducer is provided with a feed gear 32 in the direction of the spindle axis. The above motor 31 with reducer
The output is given as a sliding movement of the third spindle 26 via the feed screw shaft 32 and the driven nullers 1 to 29.

The shaft ends of the first to third spindles 14, 17, and 26 protrude laterally from the bearing case 12 to form cutter attachment portions 33 to 35. This mounting part 33-3
5 includes, in order from the top, a cylindrical drive cutter 36;
A hemispherical scallop cutter 37 and a conical bevel cutter 38 are attached. 39 each spindle 14.17.
26 drive motors rotate each cutter 36-38 in a predetermined direction.

Note that during cutting, the inner end cutting surface 37a of the scallop cutter 37 is aligned with the inner end surfaces of the flanges a and b as a reference.

Next, the cutting feed means C that moves the cutting means Ba and Bb in a predetermined cutting feed direction will be explained.

40.41 is a motor 42.43 with a reducer attached downward to the upper end of one and the other support frame 9.1°
44.45 is the feed screw shaft provided on the output shaft of the motor in the same direction as the lifting guide 11.11, and 44.45 is the cutting means Ba, Bb.
These are passive nut parts fixed to each. Each cutting means B
a and Bb move up and down by forward and reverse rotation of motors 40 and 41, and when moving up from the lower end, the workpiece W
Perform the necessary cutting work on the Note that other known mechanisms such as a hydraulic syringe system may be used as the above-mentioned feeding means.

Next, the clamping means for clamping and fixing the workpiece W during cutting will be explained with reference to FIG. 5.

This clamping means D has a function of clamping the upper and lower ends of both flanges a and b and fixing them to the support frame 9.10 side, respectively, and 46 and 47 are provided with the function of clamping the upper and lower ends of the flanges a and b, respectively, and holding them fixedly on the side of the support frame 9.10. Lifting guides 48.49 and 50.51 provided on the inner surfaces of the lifting guides 48.49 and 50.51 are upper and lower pairs of clamp claws that engage with the lifting guides 46.47, respectively. It is raised and lowered by separate hydraulic cylinders 52-55. Further, the clamp claws 48 to 51 constitute a flange holding part by a vertical reference contact surface e facing outward and a sloped pressing surface f facing inward, and the pressing surface f is connected to the flange a.
, b, and the reference contact surface e is brought into contact with the inner end surface, respectively, to perform a clamping action on the workpiece W.

Next, the longitudinal adjustment means E for longitudinally adjusting the aforementioned longitudinal slide base 6, that is, one support frame 9, will be explained.

In FIG. 3, Ma has a mounting member 5 attached to the front end of the bed 2.
A reversible motor 57 is provided through the front and rear guides 5, and a feed screw shaft is freely rotatable under the front and rear slide bases 6 in the same direction as the front and rear guides 5.58 is a feed screw shaft installed through the front and rear slide bases 6.
It is screwed into the feed screw shaft 57 through a passive nut fixed to the feed screw shaft 57. Pulleys 59 and 60 are fixed to the output shaft of the reversible motor Ma and the feed screw shaft 57, respectively. 61 is a belt stretched between the pulleys 59 and 60.

As a result, the forward and reverse slider base 6, that is, one of the support frames 9, is moved and adjusted in the forward and backward direction via the feed screw shaft 57 and the passive nut portion 58 by the forward and reverse driving of the reversible motor Ma. By moving this one support frame,
The processing heads on one side, such as the cutting means Ba and the clamping means, can be adjusted in the same front-back direction. The rotation of the reversible motor Ma is controlled by a contact detection switch of a ruler means, which will be described later.

Next, the distance adjusting means F for adjusting the corresponding position of the rework head according to the width of the workpiece W, that is, the distance between the flanges a and b, and the control means for the distance adjusting means F will be explained.

This interval adjustment means F is configured to adjust the left and right movement of the other support frame 10 with respect to one support frame 9 which is a fixed side in the left and right direction, and Mb is a mounting member attached to the side end of the bed 2. A reversible motor 63, which is a driving member, is provided via a feed shaft (this feed shaft) installed under the left and right slide bases 8 in the same direction as the left and right guides 7, allowing free rotation and slight sliding. The manner in which the screw shaft 63 is constructed will be described in detail later.)64
Using the passive nut portions fixed to the left and right slide hesses 8, the driven nut portion 64 is screwed together with the feed screw shaft 63. Pulleys 65 and 66 are attached to the output shaft of the reversible motor Mb and the feed shaft 63, respectively, and are belts stretched between the pulleys 65 and 66.

The pulley 66 of the feed screw shaft 63 is adapted to slide in the axial direction by a sliding key 68.

Here, referring to FIG. 6, the manner in which the feed shaft 63 is constructed will be explained. Reference numeral 69.70 indicates a pair of left and right bearing sleeves fixedly provided on the bed 2.
The feed screw shaft 63 is rotatably and slidably supported therein. Reference numeral 71 denotes a first compression spring interposed between the tightening nut 72 at the end of the feed screw shaft and one end of the inner cylinder of the bearing sleeve 70 via the pulley 66, which causes the feed screw shaft 63 to move to the left in the figure. energize. Reference numeral 73 denotes a second contraction spring that is interposed between the other end of the inner cylinder and the stepped portion 75 of the feed screw shaft 63 via a bear link 74, and is used to attach the feed screw shaft 63 to the right in the figure. to strengthen

76 is a switch operating body attached to the outer ring of the bearing 74. Sa and sb are limit switches for detecting slides provided corresponding to the left and right sides of the switch operating body 76.

By driving the reversible motor Mb in the forward and reverse directions, the left and right slide bases 8, that is, the other support frame 10, are moved and adjusted in the left-right direction via the feed screw shaft 63 and the driven portion 64 of the driven collar 1. By this movement of the other support frame 10, the cutting means Bb, the clamping means Rina, and the processing head on the other side are spaced apart from the processing head on the negative side.

In addition, when the processing spatula l~ is moved with no load, as in the adjustment movement described above, the first and second compression springs 71.7
3 is mostly in operation, but limit switches Sa and Sb are not operated.

Next, the control means for the above-mentioned driving member, that is, the reversible motor Mb, will be explained with reference to FIGS. 7 and 8.

In FIG. 7, La is a reflective photoelectric detection switch (hereinafter referred to as
When the workpiece W is supplied to the fixed position of the conveyance means A''-, the first detection switch detects this and outputs a detection signal to the subsequent control circuit, and also outputs a detection signal to the control circuit of the subsequent stage, and also controls the drive motor Mc of the conveyance means. to stop.

Lb is a light emitting/receiving type photoelectric detection switch (hereinafter referred to as a second detection switch) that irradiates detection light in the vertical direction, and moves in the width direction of the workpiece W together with the other support frame 10;
Depending on the flange end, "with wood" → "without wood" or "without wood"
→Outputs a detection signal when confirming "material". The detection position of the second detection switch Lb is at the clamp claw (pressing surface f) of the clamping means in the other support frame 10 in the transport direction of the workpiece W, that is, in the backward direction.
Set according to the position of. (FIG. 1) Reference numeral 77 indicates a switch mounting stay protruding from the other support room 10.

In addition, the relationship between the two detection switches La and Lb in the front and back direction is as shown in Figure 1, with the first detection switch La being located behind the second detection switch Lb, that is, in a position closer to the processing head. do.

FIG. 8 shows a control circuit diagram in which the two detection switches La, Lb and the reversible motor M) are used as circuit elements.

In the figure, MC-1 is the reversing magnet coil of the reversible motor M+), MC-2 is the forward rotating magnet coil of the reversible motor Mb, and 1 and R-2 are the relay coils La, respectively.
-a is the normally open contact of the first detection switch L b -a is the normally open contact of the second detection switch L b -11 is the normally open contact of the second detection switch
The normally closed contact of the detection switch MC-1a is the normally open contact of the reverse rotation McNet 1 to coil MC-], +1 is the normally closed contact of the reverse rotation McNet coil MC-2a is the normally open contact of the forward rotation McNet coil DC -2b is the normally closed contact R-1a of the forward magnet coil, R-2a is the normally open contact R-] of the relay coil, and b, R-2b are the normally closed contacts of the relay coil, but are reversible. Motor M L
T+ reversal circuit I! a and a normal rotation circuit pb.

Note that pc and pd are relay circuits.

Next, after setting the head spacing, in response to feeding of the workpiece W, drive control of the front and back adjustment means E, and furthermore, the ruler means Ga and Gb that contact the tip of the workpiece and regulate the position are shown in FIG. 4, etc. Refer to and explain.

This ruler means is provided on the reworking head corresponding to the flanges a and b on both sides, and is symmetrical. Therefore, only one of them will be explained here. However, each contact detection switch Sc
, Sd, only their locations are shown in FIGS. 1 and 2.

That is, 78 is a longitudinal slide guide provided on the upper part of the head case 12 in the cutting means, 79 is a mounting base engaged with the slide guide 78, and 80 is a mounting base 79.
A slide adjustment screw 81 is an operating knob for the adjustment screw 80.

Reference numeral 82 denotes a lateral moving body that is movable in the left and right directions with respect to the mounting base 79, and a horizontal support shaft 83 in the same direction of movement is provided on this lateral moving body 82 so as to be rotatable. Reference numeral 84 denotes a rotating arm that is provided in a hanging manner at the tip of the horizontal support shaft 83, and a contact piece 85 is provided on the free end side of the rotating arm. The abutment piece 85 is moved left and right by a hydraulic cylinder 86 associated with the lateral moving body 82, and when the piston rod of the hydraulic cylinder 86 is extended, it protrudes above the cutter position of the cutting head and the workpiece W. This corresponds to the front ends of flanges a and b in .

Therefore, when the workpiece W is transferred and the flanges a and b come into contact with the contact piece 85, the horizontal support shaft 83 rotates via the rotation arm 84, and the contact detection switch Sc or Sd is activated by the actuation piece (not shown). outputs a detection signal. Note that the rotation range of the rotation arm 84 after this detection is regulated by a stopper member (not shown), and the position is set by abutting the workpiece W at the regulated position.

The contact detection switches Sc and Sd operate the drive motor Mc of the conveying means A and the longitudinal adjustment means E according to their detection signals.
The following control circuit is configured to control the rotation of the reversible motor Ma and set the feeding position of the workpiece W.

That is, when the processing head interval setting end signal is input in FIG. 9, the normal rotation circuit β1 of the drive motor is closed, the normal rotation magnet coil MC-2F is excited, and the drive motor Mc rotates in the normal direction. When one detection switch Sc detects the preceding flange a end due to the transfer of the workpiece W, the forward rotation circuit 12 of the reversible motor is closed, the forward rotation magnet coil MC-IF is energized, and the reversible motor Ma rotates forward. .

Due to the transfer of the workpiece W and the rearward movement of one support frame 9, the other detection switch Sd is moved to the trailing flange b.
When detected, both the normal rotation circuits 11 and 12 open,
Both motors Mc and Ma stop.

Further, when the drive motor Mc rotates forward and the other detection switch Sd first detects the trailing flange b while the workpiece W is being transferred, the forward rotation circuit 11 of the drive motor is opened and the motor Mc Stop.

Subsequently, the reversing circuit 13 of the reversible motor Ma is closed, the reversing magnet coil MC-IR is excited, and the reversible motor M
a is reversed. When one of the detection switches Sc detects the preceding flange>a due to rearward movement of one of the support frames, the reversing circuit 13 is opened and the reversible motor M
a stops.

One embodiment of the head spacing adjustment device for a bevel scalloping machine according to the present invention is as described above, and operates as follows to set an appropriate machining head spacing corresponding to workpieces of various widths. I can do it.

That is, when a workpiece W is placed on the conveyance means A and transferred backward, that is, toward the processing head side while one flange a is regulated by the guide means J, the first detection switch La detects the tip of the workpiece W. , the drive motor Mc of the conveyance means A is stopped by the detection signal. By stopping the drive motor Mc, the workpiece W reaches the width measurement position on the conveyance means.

In this state, if the widthwise position of the second detection switch Lb is open relative to the width of the workpiece W, in the control circuit of FIG. Magnet coil MC-2 is excited and reversible motor Mb rotates forward.

Due to the normal rotation of the reversible motor, the other machining head moves together with the detection switch Lb in the direction of closing the gap, and this movement causes the second detection switch Lb to close the flange b end of the workpiece W, that is, the "no material" →Detect the state of "material". This detection signal excites the relay coil R-2 of the relay circuit 1d, so that the relay contact R-2b in the forward rotation port i\84b is opened and the reversible motor Mb stops rotating.

At this time, the movement of the other machining head in the closing direction is stopped and the position is specified, and this position is the position where the clamping means and cutting means of the other machining head accurately correspond to the other flange end. becomes.

Further, when the workpiece W is supplied to the measurement position, if the widthwise position of the second detection switch LbO is closed relative to the width of the workpiece W, this detection switch operates to control the reversible motor Mb in the control circuit. Close the reversing circuit na. At this time, the coil MC-1 is excited to rotate the reversible motor Mb, and the reversible motor Mb is reversed. By reversing the reversible motor,
During this movement, the second detection switch L11 moves the flange 1) end of the workpiece W, that is, from "with material 11" to "no material". Detect the state of. This detection signal excites the relay coil R-1 of the relay circuit 1c, so that the relay contact R-111 in the reversing circuit la is opened and the rotation of the reversible motor Mb is stopped.

Therefore, at this position, the movement of the other machining head in the opening direction is stopped, and the clamping means and cutting means are set to coincide with each other at the other flange end.

As described above, according to this adjustment means, even if the width of the workpiece W is wider or narrower than the existing head spacing, the detection switch operates accurately to adjust the head movement appropriately. I can do it.

After adapting the positions of both machining heads to the width of the workpiece W as described above, the conveyance means A is driven to feed the workpiece W further toward the machining head side. b is the contact piece 85 of the ruler means Ga, Gb.
85, it is possible to adjust the processing spatula 1 back and forth according to the tip shape (gradient condition) of the workpiece, and also to smoothly perform a series of operations such as workpiece clamping and cutting operations. It can be carried out.

In addition, in the above, if the width of the workpiece W is larger than the existing machining head spacing, the spacing between the machining heads will increase and the release operation will be stopped by moving the detection switch from "material" to "non-material". It was controlled to However, in U-turn control, the processing spatula l~ is moved from the above-mentioned stop position to the release side, and then moved to the closing direction, and the detection switch is operated from "no material" to "material". When,
If the processing head is finally stopped, the head spacing can always be set in the closing direction, allowing more accurate position setting. This U-turn control method can be incorporated into a control circuit and employed as appropriate.

Further, in one embodiment, both the first detection switch and the second detection switch are of a non-contact type, but it goes without saying that they may be of a contact type, such as a limit switch. Furthermore, in one embodiment, one flange a is restricted by an id piece 4.4 to make the position of the workpiece W suitable for width measurement, or a side pressure means is provided on the flange l] side.
A structure may be adopted in which the other flange a side is pressed against an abutting type guide piece. Further, as the driving member of the distance adjusting means, not only a motor but also a hydraulic cylinder whose position can be controlled can be used.

(Effects of the Invention) As described above, the head spacing adjustment device of the bevel scalloping machine of the present invention has a simple configuration, and automatically adjusts the spatula I and spacing according to the width of the I” section steel. It also has great effects in that it can be carried out accurately.

In addition, there is no human intervention in the setting process, so
Processing defects caused by conventional measurement errors and setting errors,
It has the feature of not causing damage to the machine.

[Brief explanation of the drawing]

The drawings show an embodiment of a head spacing adjustment device in a bevel scalloping machine according to the present invention, and FIG. 1 is a partially cross-sectional plan view showing the overall configuration. FIG. 2 is a rear view as well.
FIG. 3 is a side view. FIG. 4 is a longitudinal sectional front view showing the configuration of the cutting means, together with the ruler means. FIG. 5 is a rear view showing the configuration of the clamping means. FIG. 6 is a mechanical configuration of the interval adjusting means. Fig. 7 is a rear view showing the mounting state of the detection switch in the interval adjustment means Fig. 8 is a control circuit diagram Fig. 9 is a control circuit diagram of the front and rear adjustment means Fig. 10 is a bevel scallop FIG. 2 is a perspective view of a processed steel material. A: Conveyance means MC: Drive motor W: H type #1
(Work) a, b: Flange C: Web
J guide means 4 guide piece 9 - One support frame 7: Left and right guides 10 - Other support frame Ba, Bb: Cutting means 8: Left and right slide base 36: Driving cutter 37: Scalp cutter 3
8: Bevel cutter C: Cutting feed means D = Clamp means 48-5 Clamp claw e: Reference contact surface
f: Pressing surface E: Back and forth adjustment means Ma Reversible motor F: Interval adjustment means Mb: Reversible motor 63: Feed screw shaft
64: Passive nut part La: Reflective photoelectric detection switch (first detection switch) Lb Bifurcated photoelectric detection switch (second detection switch) 77: Mounting stay Ga, Gb Ruler means 85
: Contact piece Sc, Sd: Contact detection switch

Claims (1)

[Scope of Claims] A pair of machining heads on both sides equipped with a cutting means, a clamping means, etc. are provided at the tip of the H-shaped steel to be transferred in the longitudinal direction, and one of the machining heads is provided with a A front and back adjustment means is provided for adjusting the corresponding position in the width direction of the H-section steel, and a distance adjustment means for adjusting the corresponding position in the width direction of the H-section steel is provided on either side of the other machining head. A processing machine that performs the required beveling and scalloping on the joint end of a flange and a web, the processing head having a conveying means for conveying the H-beam in the longitudinal direction, and a conveying means for guiding one flange in the conveying direction, on the front side of the machining head. In addition to providing a guide means, on the other processing head side,
A head spacing adjustment device for a bevel scalloping machine, comprising a detection switch for detecting the other flange end, and a detection signal from the detection switch controlling a driving member of the spacing adjustment means.