KR920006469Y1 - Pipe punching apparatus - Google Patents

Abstract

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Description

Pipe borers for handrail handrails

1 is a perspective view of a perforator in which the present invention is installed.

Figure 2 is an exploded view of the main parts of the drilling machine, including this draft.

Figure 3 is a longitudinal side view showing the drilling process in sequence.

4 is a longitudinal sectional front view showing a state in which a chip is removed.

5 is a longitudinal cross-sectional view of the heart as seen from the pierced state.

* Explanation of symbols for main parts of the drawings

4: drilling device 41: fixed plate

411, 421, 433: punch guide 43: the top

44: 45: pipe guide member

451: punch rod 452: cylinder

454, 455: punch ball 456, 457: chip guide groove

46 punch 5: hand pipe

The present invention relates to a pipe perforator for handrail handles to be installed on stairs, handrails, etc. of various building structures, and in particular, the smooth discharge of chips generated when boring holes for inserting the support posts and auxiliary pipes into the handrail pipes, and A pipe perforator for handrail handles that facilitates a firm insertion fixation of an auxiliary rod.

In conventional pipe railings, when drilling holes to be inserted into handle pipes fitted on tops of props and reinforcement pipes, chips that fall through the holes stay at the bottom of the inner surface of the pipe. Chips were often inserted in the gap between the guide member inserted to easily support the hole in the pipe and the outer surface of the pipe, which hindered the movement of the pipe.

In addition, if the hole drilled in the handle pipe is made of a round pipe between the support and the auxiliary rail, the circular hole must be drilled according to its cross-sectional shape. It must be drilled with an ellipse so that it is easy to insert the support and the support vertically and to prevent the edge of the hole from being crushed between the support and the support when standing up vertically. Because of the ball could not achieve the above expected effect.

Therefore, an object of the present invention, the handrail pipe so that the chip for the handrail handle is carried out in the pipe when going out through the process of drilling so as not to be caught in the gap between the pipe and the inner support guide member. It is to provide a pipe perforator for handrail handles that can perform a perforation operation smoothly.

Another object of the present invention is to provide a good railing base that allows the support pipe to be vertically straightened by drilling an elliptical hole in the handle pipe into which the support and the auxiliary rail will be inserted. .

The present invention, which is suitably configured to achieve the above object, has an elliptical punch for drilling the holes to be inserted into the elliptical holes so as to conform to the inclination of the stair railings, and when drilling the elliptical holes in the pipe direction in the punch direction. On the support member to be supported is characterized in that a chip guide groove of the same width as at least the punch hole is dug from the punch hole to the end of the guide member in the direction of travel of the pipe.

Here, the elliptical punch means an elliptical cross section, and the punch hole of the guide member corresponds to this.

And the outer diameter of the guide member is almost the same as the inner diameter of the pipe for the handle, the present invention is particularly useful under the drilling conditions such that the chip can not escape at least a gap between them.

The hole drilled by using the present invention is elliptical and the chip generated during the drilling can be achieved by being carried in a pipe moving after receiving the chip guide groove of the guide member.

Hereinafter, the present invention will be described in detail according to the accompanying drawings.

1 to 5 show one embodiment of the present invention.

In the drawing, reference numeral 1 denotes a perforator body, which is composed of a body 2, a lifting platform 3, and a perforation device 4.

The body (2) guides and supports the lifting platform (3) up and down in the up and down direction, and a base plate (21) is installed below the pipe material to be processed and the drilling device (4) during the lowering drilling. have.

The lifting platform 3 operates the drilling device 4 in the up and down direction, and the drilling device 4 is fixed plate 41 and the guide plate 42 and the upper and lower bottles 43 and 44 and the pipe guide member 45 and The punch 46 is comprised.

The fixing plate 41 and the guide plate 42 are integrated by assembling and fastening with bolts, and punch holes 411 and 421 in the center thereof, and the punch guide holes 411 and 421 are formed of elliptical holes, respectively.

In addition, the guide pins 422 protrude downward from each corner of the guide plate 42, and a bolt hole 432 is formed on one side of each guide pin 422, and with the middle between the guide pins 422. At about the same time, a screw hole 424 is also formed.

The bolt 425 is fastened to the bolt hole 423 for maintaining the spacing, but the bolt 425 head is caught by the bolt ball 423 so that the head is elevated within a predetermined stroke distance within the bolt ball 423. Also, by placing the stroke adjusting nut 426 in the gap holding bolt 425, it is possible to determine the falling distance of the guide plate 42 to be described later.

In addition, the screw pin 427 and the cushioning material 428 such as urethane rubber are inserted together in the screw hole 424 to reduce the operating shock between the guide plate 42 and the top frame 43.

The upper 43 and 44 respectively form tube narrow grooves 431 and 441 formed in semi-circular pieces in the longitudinal direction in the middle thereof, and guide holes 432 and 442 for guide pins are also provided at each corner.

The guide pin 432 of the guide plate 42 loosely enters and guides the guide hole 432 of the top frame 43 to help the precise operation of the top frame 43.

In the center of the upper frame 43, an elliptical hole 433 for guiding a punch penetrates the upper frame 43 so as to penetrate the tube narrow groove 431, and guide plates for each screw hole 434 placed on one side of each guide hole 432. By fastening the space maintenance bolt 425 installed in (42) to maintain a constant distance between the guide plate 42 and the top frame 43, and also a plurality of pin holes 435 between each guide hole (432) The guide plate 42 and the top frame 43 are inserted by inserting the screw pin 427 which is vertically drilled and fixed to the guide plate 42 so that the buffer pipe 428 is installed between the guide plate 42 and the top frame 43. The interval of is kept elastically constant.

On the other hand, the punch 46 has an elliptical cross section, and is loosely fitted to the fixing guide 41, the guide plate 42, and the punch guide holes 411, 421, 433 of the upper frame 43 to be operated in the vertical direction. In addition, the end of the punch 46 is positioned in the punch guide hole 433 of the upper frame 43 when the cushion plate 428 provided between the guide plate 42 and the upper frame 43 is expanded in its original state. And the compressed end of the punch 46 is exposed to the tube narrow groove 431 of the upper frame 43, so that the drilling operation can be made for the handrail handle pipe 5 to be described later.

Since the fixing plate 41 and the punch 46 of the punching device 4 are fixed to the lifting table 3, the lifting plate 3 has a sense of unity.

In addition, since the guide plate 42 and the upper frame 43 are integrated in the fixed plate 41, the lifting plate 3 is elevated together with the lifting platform 3, and the lower 44 is the upper frame 43 on the mounting plate 21 of the body 2. It should be installed underneath to ensure accurate matching with each other.

Pipe guide member 45 is composed of a punch rod 451 and a cylinder 452, one side of the punch rod 451 is installed to reciprocate back and forth by the cylinder 452 by integrating the shaft rod 453. .

Also drills the elliptical punch hole 454 corresponding to the punch of the elliptical cross section up and down in the middle portion of the punch rod 451, and penetrates the transverse hole 455 in a direction perpendicular to the punch hole 454. Simultaneously with the punch hole 454, the punch hole 454 and the cross hole 455 are positioned so as not to cross at right angles to each other, and the bottom circumference of the punch hole 454 and one side end of the cross hole 455 are also provided. Long chip guide grooves 456 and 457 are formed on the outer circumferential surface of the punch rod 451 including the edges up to the tip in the longitudinal direction thereof.

The width of the chip guide grooves 456 and 457 should be at least equal to the width of the chip drawn by the respective associated punches, so that the chip can be deliberately escaped without being jammed.

The cylinder 452 is hydraulic or pneumatic and is provided outside the body 2 so as to have a stroke longer than at least the pipe 5 in consideration of the fact that the length of the handle pipe 5 is generally long.

Reference numeral 51 in the drawing denotes a chip.

In the present invention configured as described above, in order to drill the elliptical hole for fitting the support or the support to the pipe 5 for the handle, the pipe 5 for the handle is inserted into the pipe guide member 45.

At this time, the pipe 5 has a dimension smaller than the outer diameter of the pipe guide member 45, and the length of the pipe 5 conforms to the railing standard, and the guide member 45 does the same.

And the punch rod 451 of the pipe guide member 45 is settled in the tube clamping groove 441 of the turtle 44.

Of course, at this point, since the pipe 5 is already fitted, the pipe canal groove 441 of the heart 44 is not different from the one in which the pipe 5 is placed, but it is easy to understand the situation where the punch rod 451 is located. In order to do so, the punch rod 45 is described as if it is placed in the heart 44.

In this manner, the punch hole 454 of the punch rod 451 is previously adjusted to match the punch guide hole 433 of the upper frame 43 so that the punch 46 is correctly inserted into the punch guide hole 454 when the punch 46 descends. Be sure to

Subsequently, when the platform 3 is lowered as shown in FIG.

That is, the tube narrowing groove 431 of the upper frame 43 is in contact with the upper surface of the pipe 5 and at the same time the guide pin 422 is inserted into the guide hole 442 of the heart 44, the upper, the lower 43 (44) is closely molded to prevent displacement or flow.

Then, the buffer tube 428 is expanded and returned to its original state as shown in FIGS. 3B and 4.

After that, the fixed plate 41 and the guide plate 42 are lowered in succession as the descending platform 3 descends. At this time, the top frame 43 is prevented from being lowered by the bottle 44 and stays as it is.

Therefore, as shown in FIG. 3 (c), the buffer tube 428 installed at the guide plate 42 and the top frame 43 is compressed by the lowering of the fixed plate 41 and the guide plate 42, and the punch 46 is connected to the pipe 5. ) Is punched out and then cut into the punch hole 454 of the punch rod 451.

The punching operation of the punch 46 immediately produces a chip 51 which falls under the punch hole 454 of the punch rod 451 into the chip guide groove 456.

After drilling the elliptical hole in the pipe 5 in this way, the guide plate 42 is caught by the spacer nut 426 installed in the spacer bolt 425 and can no longer be lowered.

Because, the lower end of the interval maintenance bolt 425 is fixed to the upper frame 43, so that the interval maintenance bolt 425 is not allowed to fall and the upper end is operated up and down at the bolt hole 423 of the guide plate 42 (guide plate ( This is because the lowering motion is restrained by the catching nut 426 when 42 is lowered.

Thus, by changing the fastening state of the gap holding nut 426 it is possible to easily adjust the falling stroke of the guide plate 42 and the punch 46 at the same time.

After performing the elliptical hole drilling operation on the pipe 5, the lifting platform 3 is raised in the reverse order to the above, so that the upper frame 43 rises in the order of FIG. 3 (c) → (b) → (a). 5) The drilling operation of the elliptical hole is finished.

At this time, as the guide plate 42 caught by the gap retaining nut 426 also rises, the gap between the guide plate 42 and the top frame 43 opens and the elastically compressed buffer tube 428 is expanded and returned to its original shape. Then, the pipe 5 is moved forward by a certain length to drill the next ellipse hole, and then again another elliptical hole drilling operation as described above is repeated.

On the other hand, the chip 51 dropped downward through the punch hole 454 of the punch rod 451 is loaded on the sea surface of the pipe 5 within the region of the chip guide groove 456 and follows the pipe as it moves.

In this way, the chip 51 is naturally discharged out of the punch hole 454, so that there is no obstacle to other subsequent elliptical drilling.

In other words, since the punch hole 454 and the chip guide groove 456 are exposed to the outer circumferential surface of the punch rod 451 to communicate with the inner circumferential surface of the pipe 5 in succession, the chip 51 falling therein eventually ends up in the pipe 5. And the chip 51 dropped to the inner circumferential surface of the pipe 5 is carried out as it is when the pipe 5 moves, which is accumulated between the punch hole 454 or the chip guide groove 456. It does not interfere with the work between them.

The other punch hole 455 is for use when drilling a round hole in the pipe 5, and the chip guide groove 457 for the above purpose is formed therein.

It is easy to drill the elliptical hole for holding on the stairs handrail handle pipe made of pipe of the present invention, and also the chip generated during drilling is discharged to lead the dragon. It can be improved.

Claims (1)

In the pipe perforator provided with a mounting plate 21 and a pipe inner support member 45 provided with a pipe clamping groove on the body 2, and a punching punch 46 on the platform 3, The punch 46 is formed to have an elliptical cross section, and the punch guide holes 411 and 421 of the fixing plate 41 and the guide plate 42 and the upper and lower hearts 43 and 44 which guide the lifting and lowering of the punch 46 are formed. 433 and the punch holes 454 and 455 of the pipe guide member 45 are formed as elliptical holes corresponding to the elliptical punch 46, and the punch holes 454 and 455 of the guide member 45 are formed. Handrail pipe puncher for the handrail, characterized in that the chip guide grooves (456) (457) leading from the bottom of the pipe (5) to the leading end direction.