JPH01159115A - Drilling facility for h-shaped steel - Google Patents

Abstract

PURPOSE:To drill a flange hole quickly at the correct position through one positioning by forcing an H-shaped steel on a conveyor to be carried using double pushing trucks to position the steel, having a web drilling device approach to it, and having a flange drilling device approach and lift up and down. CONSTITUTION:An H-shaped steel 1 laid on a conveyor 4 is held at both ends with pushing trucks 8A and 8B, transferred to the position where the specified positions of the steel 1 are aligned with drilling devices 11 and 12, respectively, and the pushing trucks 8A and 8B are forced to approach to each other, and positioned. By both the movement of a sliding part 29 with respect to a widthwise guiding member 14 and the movement of a movable part 34 with respect to the sliding part 29, a drill 38 is brought to face to the web part 2 and the drilling part 37 is lowered with respect to the movable part 34 to approach to the web part 2 to drill it. By the movement of the sliding part 16 with respect to a fro-and-rear guiding member 15 and the lowering movement of a lifting up-and-down device 21 with respect to the sliding part 16, the drill 25 is brought to face to a flange part 3 and the drilling part 24 is moved to the right and the left with respect to the lifting up-and-down part 21. The drill 25 is approached to make a flange hole 46a and the lifting up-and-down part 21 is lifted to make a flange hole 46b.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to drilling equipment employed for drilling holes in H-shaped steel for construction to connect the H-shaped steel to each other.

BACKGROUND ART As shown in FIGS. 6 and 7, an H-shaped steel 120 consists of a central web portion 121 and a pair of flange portions 122.
For example, holes are formed in the end portions for connecting the end portions via the web connecting plate 123, the flange connecting plate 124, and bolts and nuts 125. In other words, the web portion 121 has a plurality of (
In the figure, a web hole 126 of 4f [II] is formed, and both flange portions 122 are provided with a web portion 126, respectively.
21, in a total of 4 rows distributed on both sides of the 21, at a predetermined interval g from the end face (in the figure, 4 pieces in total, 1 piece)
6) flange holes 127 are formed. Conventionally, to form such holes 126 and 127, an H-type 1120 is placed on a conveyor H@128 such as a roller type.
The web portion 121 is placed horizontally, and 4
The web perforating unit [130 with a book drill 129 is lowered to form four web holes 126 at the same time. Further, a flange drilling device 132 having two drills 131 on the upper and lower sides is provided on each side of the conveyor Huff 128, and these flange drilling devices 132 are moved closer to each other to drill two holes in each of the seven runs 9 parts 122. A total of four flange holes 127 are formed. And type 1 l1112
0 is moved by a predetermined distance g by the conveyor device 128 to form the next four flange holes 127, and by repeating this process, all the flange holes 127 are formed.

Problems to be Solved by the Invention According to the conventional method as described above, for example, 1611! l
When forming the flange hole 121, the H-shaped steel 120 must be moved three times after the first drilling, and the movement via the fast conveyor device 128 is necessary to accurately obtain the predetermined distance ρ. The overall drilling work cannot be carried out efficiently because it requires frequent adjustment and movement.

An object of the present invention is to provide a type steel drilling equipment that can perform drilling operations accurately and efficiently.

Means for Solving the Problems In order to achieve the above object, the H-shaped steel drilling equipment of the present invention is provided with a conveyor device that supports the H-shaped steel in the longitudinal direction with its web section in the lateral direction. A pair of push carts are provided that can run freely on the perforation line formed by the above and can freely come into contact with the end face of the H-shaped steel, and a pair of flange borings that can freely face the flange portion of the H-shaped steel with the perforation line in the middle are provided. 'lArl1, and a web punching device that can freely face the web part, and the flange punching device has a punching part that can move freely in an up-and-down direction, in a direction along the punching line, and in a direction toward and away from the punching line, This drilling section protrudes toward the drilling line and has a plurality of drills in the direction of the drilling line.

According to the configuration of the present invention, the H-beam on the conveyor device is conveyed on the perforation line by both push carts running in the same direction, and a predetermined portion of the H-beam is placed opposite to both the perforations 8@. Afterwards, both push carts are urged to move toward each other, thereby accurately positioning the H-shaped steel and maintaining that position. Thereafter, by moving the web punching device closer to the web portion, a plurality of web holes can be formed using the plurality of drills. In addition, leveling is performed by lifting and lowering, and by moving the perforation part, which has been adjusted in the length direction by moving along the perforation line, closer to the 7 run 9 part, multiple drills can be used in the perforation line direction. Holes for flanges are formed at multiple locations. The flange hole is formed on one side of the web portion, and the flange hole on the other side can be formed by raising and lowering the perforation.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 5.

In FIG. 1, reference numeral 1 denotes an H-shaped steel, which is formed from a central web portion 2 and a pair of 7-run 9 portions 3. Reference numeral 4 denotes a conveyor device, which is a roller conveyor type formed on a pair of left and right frames 5 and a number of rollers 6 freely rotatably attached between these frames 5, and carries the H-shaped a1 with its web portion 2 horizontally. It is supported in the direction and conveyed in the length direction on the perforation line 7.

The end face 1 of the H-shaped a1 can run freely on this perforation line 7.
A pair of push carts 8A and 8B that can freely come into contact with the frame 5 have wheels 9A and 9B attached to a guide portion 5a formed on the upper surface of the frame 5.
They are supported and guided through a self-propelled system that allows them to move forward and backward independently. The opposing surfaces of the push carts 8Δ and 8B are push surfaces 1 and OA, 103 that can freely come into contact with the end surface 1a.
is formed.

7 runs 9 of the H-shaped steel 1 with the perforation line 7 inside.
A pair of flange perforations Hlff11 that can freely face the portion 3;
A web punching device 12 that can freely face the web portion 2 is provided. That is, a pair of left and right fixing members 13 are erected with the perforation line 7 in between, a width direction guide member 14 is provided between the upper ends of these fixing members 13, and a front and rear direction guide member 15 is provided in series from the front side forward. There is. The flange drilling device 11 has a sliding part 16 that is supported and guided by a front-rear guide member 15 and is movable.
is moved back and forth by forward and reverse rotation of a first screw shaft 18 driven by a first motor 17 attached to the fixed member 13. The sliding portion 16 has this J! ! An elevating section 21 is provided which moves up and down by the forward and reverse rotation of a second screw shaft 20 that is moved by a second motor 19 attached to the tlJJ section 16, and the elevating section 21
In this case, the third motor 22 attached to this lifting section 21 is
A perforation portion 24 is provided that moves left and right (in a direction toward and away from the perforation line 7) by forward and reverse rotation of the third screw shaft 23.

This drilling section 24 has a plurality of (four in the embodiment) drills 25 that protrude toward the drilling line 7 (in the left-right direction) and extend in the direction of the drilling line 7 . and sliding part 16
A drill storage section 27 that is interlocked with and covers the lifting drive unit W126 is provided on the front side. The web punching device 12 has a sliding part 29 that is supported and guided by the width direction guide member 14 and is movable. It moves left and right by forward and reverse rotation of the screw shaft 31. The sliding part 29 is provided with a movable part 34 that moves back and forth by forward and reverse rotation of a fifth screw shaft 33 that is linked to a fifth motor 32 attached to the sliding part 29. A perforated portion 37 is provided that moves up and down by forward and reverse rotation of a sixth screw shaft 36 that is interlocked with a sixth motor 35 attached to the movable portion 34 . This perforation 3
7 has a plurality of drills 38 (four in the embodiment) protruding toward the drilling line 7 (facing downward) and extending in the left and right direction. A drill storage section 40 is provided on the lower surface side of the M moving section 29 and is movable back and forth in conjunction with the e-movement e-device 39. In addition, each motor 17.19.22.30.32.3
The rotation of No. 5 is appropriately decelerated midway through.

Clamp devices W141 are provided on both sides of the perforation line 7 to further securely fix the T1 type steel 1. The clamping device 41 is of a conventional type, and includes a pressing member 42 that can freely come into contact with the outer surface of the flange portion 3, and an engaging member 43 that can freely engage the edge of the flange portion 3 from above.

As shown in FIGS. 2 and 3, the perforation part 24 of the flange perforation device 11 (the perforation part 37 of the web perforation device 12 also has a similar configuration with a different direction) has a box-shaped case-like main body 5.
0, this main body 50 rotatably supports a drive shaft 51 in the direction along the perforation line 7, and a drive device (
A motor) 52 is attached, and an output shaft 53 of this drive vJ device 52 is connected to a drive shaft 51 via a coupling 54 or the like. Four transmission VJ gears 56 are attached to this drive shaft 51 via one-way clutches 55, respectively. A passive shaft 57 extending orthogonal to the drive shaft 51 is rotatably supported by the main body 50 via a bearing 58, and a passive gear 59 that is constantly meshed with the transmission gear 56 is attached to its base end. Note that both gears 56 and 59 are bevel gears. A universal joint 60 is provided at the outer end of the passive shaft 57.
A spline cylindrical shaft 61 is connected to the spline cylindrical shaft 61 via a universal joint 63, and a nut body 64 is provided at the outer end of the spline shaft 62 that fits inside the spline cylindrical shaft 61. A drill holder 66, which has a threaded portion 65 formed at its base end to be screwed into the nut body 64, is rotatably supported on the movable portion 69 side via a needle bearing 67, a thrust bearing 68, etc. The movable part 69 is guided by a guide part 70 formed in the main body 50m and is slidable only in the direction along the drive shaft 51. Book Boruto Natsuto 71
The guide position can be adjusted freely.

The movable portion 69 can be moved by threading a nut body 72 integral with the movable portion 69 onto a screw shaft 73, and interlocking the screw shaft 73 with a servo motor 74 attached to the main body 50. At this time, the movement m (movement position) can be confirmed by an absolute scale (magnetic absolute value scale) 75, but an encoder may be provided in the servo motor 74. In order to fix the movement position of the movable part 69, the movable part 69 has a piston 7 that can freely come into contact with the guide part 70 side.
6 is provided, and an oil or water pipe 78 is connected to the cylinder chamber 77 thereof. The drill holder 66 is formed with a tapered hole 79 having an open outer end and a large diameter.
Furthermore, an elongated engagement groove 80 is provided at the innermost part of the tapered hole portion 79.
is formed. A penetration part 81 is formed in the drill holder 66 from the base end to the engagement W480, and the inner end of a bottle 82 disposed in the penetration part 81 faces the engagement groove 80, and the outer end is It is exposed at the universal joint 63. 83 is a spring for maintaining the neutral position of the bottle 82. The drill 25 has at its base a tapered portion 85 that can be fitted into the tapered hole portion 79 and an engagement plate portion 86 that can be engaged with the engagement groove 80.

The drill storage section 27 has a drill supply device 91 inside a box-shaped case-like main body 90. This drill supply device 91
A front and rear movable body 93 that is supported and guided by a front and rear guide rod 92 attached to the main body 90 and is movable in the length direction of the drill holder 66, a front and rear screw shaft 94 that is screwed into this front and rear movable body 93, and A front and rear servo motor 95 is linked to a screw shaft 94, an upper F movable body 97 is supported and guided by a vertical guide rod 96 attached to the front and rear movable body 93, and a vertical screw shaft 98 is screwed into this vertical movable body 97. , a vertical servo motor 99 that MIJs to this vertical pivot shaft 98, a pair of left and right movable bodies 1o1a and 101b supported and guided by a left and right guide rod 100 attached to the vertical movable body 97, and these left and right movable bodies 101a and 101b. A left and right screw shaft 102 with a reverse threaded portion screwed together, a left and right servo motor 103 that moves on this left and right screw shaft 102, and a left and right movable body 101a.
, 101b on opposing inner surfaces. It consists of clamp tools 104a and 104b, and these clamp tools 1
A drill 25 is provided on the opposing inner surfaces of 04a and 104b.
recessed part 105a for the lamp, which can be held from the left and right sides, 1
05b is formed. In the main body 90, there are provided a drill holder 11G and a rotation drive device 111 that partially rotates the drill holder 110 in an angular manner. That is, the drill holder 110 is attached to the drill holder 66.
a rotation axis 112 along the length of the rotation axis 112;
The holding portion 113 is capable of elastically holding the drill 25 at fixed angles (in the embodiment, at 90 degrees) at θ on the outer surface of the drill 25 in the circumferential direction. The rotary shaft 112 is integrated with an output shaft 115 of the rotary drive device 111 attached to a bracket 114. The main body 90 is attached to the base 1181 via the H spring 116 and the stopper 117! 1, and this base 118 is interlocked with the lifting drive device [126].

Next, the operation of the above embodiment will be explained.

The H-type w41 placed on the conveyor device 4 via a pair of 7-run 9 parts 3 is pushed onto its end face 1a and 10A, I
By bringing the OB into contact with each other, the OB is held between the pair of push carts 8A and 8B in the length direction. In this state, 8
By moving A forward and moving the other 8B backward,
The H-shaped steel 1 is conveyed on the perforation line 7, and a predetermined portion is made to face both perforators W111.12. If the conveyance is too high, adjustment can be made by retracting one side 8A and advancing one side 8B. After performing the position adjustment in this manner, the push carts 8A and 8B are urged to move toward each other, thereby accurately positioning the H-shape 11 and maintaining that position. Note that the pressing member 42 and the engaging member 43
Clamping device such as! ! By operating 41, the position can be maintained more firmly. Then, both punching devices 11.
12 may be performed at the same time or one of them may be performed in advance. That is, in the web punching device 12, f! By moving the J iIJ portion 29 in the width direction and moving the movable portion 34 back and forth with respect to the sliding portion 29 , the drill 38 is made to face a predetermined location of the web portion 2 . Next, by lowering the drilling part 37 with respect to the movable part 34, the rotating drill 38 moves close to the web part 2, comes into contact with it, and then performs drilling. This allows 4 in the width direction.
Web holes 45 may be formed at the locations. Further, in the flange drilling device 11, the sliding portion 16 is moved back and forth with respect to the front-back direction guide member 15, and the lifting portion 2 is moved with respect to the sliding portion 16.
1, the drill 25 is made to face the flange portion 3. At this time, the drill 25
For example, it is facing downward with the inside.

Next, by moving the drilling part 24 left and right with respect to the elevating part 21, the rotating drill 25 moves closer to the flange part 3, comes into contact with it, and then performs drilling. As a result, the web part 2
Below, flange holes 46a can be formed at four locations in the direction of the perforation line 7 at predetermined locations on the seven run 9 portion 3. By making the elevating portion 21 uppermost, four flange holes 46b can be formed in the upper row.

The movement of each part is performed by rotating the screw shaft forward and backward using a motor, but the control is computer-controlled based on a program.

During the drilling operation as described above, the drill storage section 27.
40 is in the backward position, and the movement of the perforated portion 24.37 is carried out without any hindrance. Further, the rotation of the drills 25 and 38 is performed as follows. That is, the rotational force of the drive shaft 51 rotated by the forward drive of the e-equipment W152 is applied to the one-way clutch 55, the transmission gear 56, the passive gear 59, the universal joint 60,
Spline cylinder shaft 61, spline shaft 62, universal joint 63
, are transmitted to the drill holder 66 via the nut body 64, causing the drill holder 66 to rotate. The rotation of the drill holder 66 is controlled by the drill 25 via the engagement plate portion 86.
．． 38 and rotates this drill 25 degrees 38.

At that time, fine adjustment of the pitch P and position between the drills is performed by releasing the piston 76 from being suppressed, moving the movable part 69 by rotating the screw shaft 73 in the forward and reverse directions by the servo motor 74, and then pushing the piston 76. This is done by locking the That amount of movement! [, control is performed via an absolute scale 75.

When the drill 25.28 is damaged or when a hole of a different diameter is to be formed, the drill housing 27 is first moved to face the tip of the drill 25.28.

The perforation 24.37 is then advanced and plunged into the body 90 as shown in FIG. At this time, the drill supply device 9
1, the clamping tools 105a, 105b have moved apart and are at the same level as the drill 25, 28. In this state, the front and rear movable body 93 is moved forward, and the clamps 104a and 104b are externally fitted onto the drills 25 and 28 as shown by the imaginary lines in FIG. Then, after clamping the drill 25.28 by moving the clamping tools 104a and 104b closer to each other, the clamping tools 105a and 104b are moved together with the front and rear movable body 93.
t05b is made to retire and the drills 25 and 28 are extracted from the drill holder 66. Next, the vertically movable body 97 is lowered, and the clamped drills 25 and 28 are pushed into the empty holding portion 113 against its elasticity and held therein.

After the clamping tools 104a and 104bfi are moved apart and released upward, the drill holder 110 is partially rotated once or multiple times by the rotational drive device 111 at an angle θ, and the drill 25.28 to be used next is rotated by the rotation drive device 111. are located on the side of the clamp tools 104a and 104b. Next, the clamping tools 104a, 104b are lowered and positioned on both sides of the drill 25.28, and then moved closer to clamp the drill 25.28, and the clamping tools 104a, 104b are raised to elastically push the drill 25.28 away from the holding part 113. and then take it out.

When the front and rear movable body 93 is advanced in this state, the drill 25
, 28 enters the tapered hole 79. At this time, the drive shaft 51 is rotating in the opposite direction, and therefore the drill holder 66 is rotating slowly and without being subjected to forced force only by the frictional transmission of the one-way clutch 55. When the drill 25° 28 is inserted in this state as described above, a timing occurs when the engagement groove 80 matches the engagement plate portion 86, and at this time, the engagement plate portion 86 is engaged with the engagement groove 80. That will happen. At the time of this engagement, the drills 25 and 28 are in a non-rotating and fixed state, and the drive shaft 51 is rotating in the opposite direction, but this does not pose any problem since the one-way clutch 55 is in the direction in which it does not operate.

In addition, due to the change in the length of the drill 25.28, the clamp j0
4a and 104b may be strained during the forward and backward movement strokes, but this is absorbed by the #l impact spring 116.
It will be done.

In an emergency when the drill 25 or 28 cannot be extracted automatically, drive a tapered bottle into the universal joint 63.
It is sufficient to push out the engagement plate portion 86 by retracting the pin 82 against the force of the spring 83, and this is done manually.

Effects of the Invention According to the present invention having the above configuration, the H-beam on the conveyor device can be conveyed on the perforation line by both push carts running in the same direction, and a predetermined portion of the 1''-shape can be conveyed by both perforations. By forcing both push carts, which are placed opposite to the device, to move toward each other, it is possible to accurately position the H-shaped steel and to maintain that position.

Thereafter, by moving the web punching device closer to the web portion, a plurality of web holes can be formed at once using the plurality of drills. In addition, with the flange drilling device, it is possible to perform level adjustment by moving up and down, and final adjustment in the length direction can be made by moving in the direction along the drilling line.Then, the drilling part can be moved closer to the flange part. By doing so, flange holes can be formed at multiple locations in the drilling line direction using the lj-type drill. This group of flange holes is formed on one side with the web part inside, and the group of flange holes on the other side can be formed by lowering the perforated portion.

According to the present invention, once the H-shaped steel is positioned, all the flange holes can be formed without moving the H-shaped steel and by stirring down the perforated portion only once. Drilling work can be performed accurately and efficiently.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a perspective view, Figure 2 being a partly cutaway plan view of the drilling section, and Figure 3 being a longitudinal cross-section of the main parts when replacing the drill. A side view, FIG. 4 is a view taken from the IV-IV arrow in FIG. 3, FIG.
The figure is a schematic perspective view showing a conventional example, and FIG. 7 is a longitudinal sectional view of the same. 1... H-shaped steel (workpiece), 1a... end face, 2...
・Web part, 3...7 run 9 parts, 4...conveyor device, 7...perforation line, 8A, 8B...push truck,
10A. 103... Push surface, 11... Flange punching device, 1
2... web perforation device, 24... perforation section, 25.
...Drill, 27...Drill storage section, 37...Drilling section, 40...Drill storage section, 45...Web hole,
46a, 46b...Flange hole, 51...Drive shaft, 55...One-way clutch, 66...Drill holder, 79...Taber hole portion, 80...Engagement groove, 8
5... Taper part, 86... Engagement plate part, 91... Drill supply device, 104a, 104b... Clamp tool, 110... Drill holder, 111... Rotation drive device, 113... ...Holding part, θ... constant angle. Agent Yoshihiro MorimotoFigure 4

Claims (1)

[Claims] 1. A conveyor device is provided to support the H-shaped steel in the longitudinal direction with its web section in the lateral direction, and a pair of conveyor devices are provided that can freely travel on the perforation line formed by this conveyor device and can freely come into contact with the end face of the H-shaped steel. A push cart is provided, and a pair of flange punching devices that can freely oppose the flange portion of the H-shaped steel and a web punching device that can freely oppose the web portion are provided with the punching line inside, and the flange punching device includes: A perforation part is provided that is movable in the lifting direction, the direction along the perforation line, and the direction toward and away from the perforation line, and this perforation part is
Drilling equipment for H-shaped steel characterized by having a plurality of drills protruding toward the perforation line and extending in the direction of the perforation line.