KR102155847B1 - Elbow and tee drilling method - Google Patents

Abstract

The present invention relates to a method of operating an elbow and tee drilling machine, and more specifically, to a method of drilling a high-pressure fitting, and to a method of operating an elbow and tee drilling machine, which drills a fitting such as a hot-forged elbow or tee by using one drill machine. The present invention comprises: a step (P1) of inserting a fitting into a fixing jig (30); a step (P2) of allowing, after the insertion step (P1), a clamping cylinder (21) to be operated such that a shaft descends to fix the fitting (5); a step (P3) of allowing, after the fixing step (P2), a drill machine (10) to horizontally move and drill one side surface part of the fitting (5); a step (P4) of allowing, after the drilling step (P3), the drill machine (10) to be returned to the original position thereof, and a turn table (50) to be rotated by a rotating motor part (70) via a ring gear shaft (60); a step (P5) of allowing, after the rotation step (P4), the drill machine (10) to horizontally move and drill the other one side surface part of the fitting (5); a step (P6) of allowing, after the drilling step (S5), the clamping cylinder (21) to be operated such that the shaft ascends and releases the fixing of the fitting (5); and a step (P7) of allowing, after the fixing releasing step (P6), the fitting (5) drilled in the fixing jig (30) to be discharged, wherein the above steps are repeated. The present invention has a one-way clutch between a turn table and a ring gear and thus, can rotate a fixing jig manually even without a rotating motor.

Description

Elbow and tee drilling method {Elbow and tee drilling method}

The present invention relates to a method of operating a dedicated machine for elbow and tee drills, and in more detail, as a method of drilling fittings for high pressure, drilling of fittings of elbows to tees using one drill machine for hot forged elbows or tees. It relates to a method of operating an elbow and tee drill machine, characterized in that.

Fittings are a generic term for pipe fittings, and are members used for changing the direction and diameter of the pipe, finishing, extending, and controlling the flow of fluid.

In general fittings, products are manufactured by cutting after plastic processing, whereas for high pressure or special purposes, products pressed by forging are manufactured. As an example, fittings used in chemical plants must withstand chemicals (chemical resistance), and fittings of marine plants must not cause corrosion (corrosion resistance) even in seawater, so carbon or stainless materials are difficult to cut. Fittings are manufactured in a hot forging method that reinforces the rigidity of the material through the process of forging using heat-treated materials.

Hot-forged fittings are completed through precision processing using NC equipment after center hole formation and drilling with a dedicated drill.

The present invention relates to a special machine for forming and drilling a center hole in hot forged fittings.

As conventional technologies for the above technology, Korean Patent Registration Nos. 10-1647645 and 10-1647642 are representative. The known technology discloses a multi-direction simultaneous drilling machine and a manufacturing method for improving the efficiency and productivity of work by simultaneously processing two elbow-shaped pipes in one process.

However, the above technology requires a plurality of drill equipment at the front and side, and is subject to the prerequisite that the installation space of the equipment is large.

Nowadays, there is a need for a technology capable of lowering the manufacturing cost by simultaneously performing small-scale production of multiple varieties and mass production of multiple varieties. In that respect, the above technology is suitable for mass production of small items, but not suitable for small quantity production of multiple kinds.

Therefore, it is possible to drill not only vertical elbows,'T'-shaped tees, but also 135 degree inclined fittings and'Y'-shaped split fittings using one drill machine. There is a need for a technology on the operation method of a dedicated drill that can improve productivity by renewing the operation method that exists and the operation method of the index support and turntable.

1. KR 10-1647642,'Multi-direction simultaneous drilling machine', registration date: 2016.08.11. 2. KR 10-2013-0115883,'Drilling machine capable of bidirectional drilling', Publication date: 2013.10.22. 3. KR 20-1994-0012056, '3-way automatic drilling machine', Publication date: 1994.06.15.

The present invention was invented to solve the above problems, and the operation method of an elbow and tee drill dedicated machine capable of drilling hot forged elbows, tees, inclined fittings and Y split fittings in various directions with one drill machine It is an object of the present invention to disclose.

In order to achieve the above object of the invention, the main frame 1 supporting the drill machine 10, the index support 2 and the clamping support 3 while maintaining a constant height from the ground, and fastened to the main frame 1 The fittings 5 are gripped with a fixing jig 30, and an index unit 100 capable of tilting and height adjustment, an index support 80 accommodating the index unit 100 therein, and the index unit ( Drilling of an elbow and tee drill machine including a clamping part 20 that fixes the fittings 5 held in 100) while the cylinder descends, and the center of the fittings 5 and a drill machine 10 for drilling In the method, in order to tilt the fixing jig 30 in the index unit 100, a table frame 51 fastened to the fixing jig 30, and one or more fastened to the outer circumferential surface of the table frame 51 The handle 52, the disk shaft 53 fastened to one side of the table frame 51, the connector shaft 55 formed in the center of the end of the disk shaft 53, and the disk shaft 53 A ten table 50 having a disk gear 54 having gears having a triangular column shape; A ring gear shaft (60) having a disk gear groove (62) mating with the disk gear (54) of the ten table (50) formed at an end portion and forming a ring gear (61) on an outer circumferential surface thereof; Including, the fixing jig 30; including; a pinion gear 71 connected to the ring gear 61 and a rotation motor 72 having a rotation motor 72 for rotating the pinion gear 71 Inserting fittings into (P1); After the insertion step (P1), the clamping cylinder 21 is operated to lower the shaft to fix the fittings (5) (P2); After the fixing step (P2), the drilling machine (10) is horizontally moved to drill one side of the fittings (5) (P3); After the drilling step (P3), the drill machine (10) returns to its original state, and the turntable (50) is rotated by the rotary motor unit (70) via the ring gear shaft (60) (P4); After the rotating step (P4), the drilling machine 10 horizontally moves to drill the other side of the fittings (5) (P5); After the drilling step (P5), the clamping cylinder (21) is operated and the shaft is raised to release the fixing of the fittings (5) (P6); After the unfixing step (P6), including the step (P7) of discharging the fittings (5) drilled in the fixing jig (30), the method of operating an elbow and tee drill dedicated machine, characterized in that repeating the above process I want to start.

In addition, the present invention, in order to adjust the height of the fixing jig 30 in the index portion 100, and a fastening member 95 connected to the lower end of the ring gear shaft 60; A screw 94 connected to the fastening member 95 and rotating, a reducer and a worm gear 93; The step of inserting fittings into the fixing jig 30, including a height adjustment unit 90 having a handle 91 for rotating the reducer and the worm gear 93 via the handle shaft 92 ( P1) Prior to, further comprising the step of matching the center line of the fittings 5 and the center line of the drill machine 10, but if only the handle 91 is rotated to the position indicated on the index support 80 It is intended to disclose a method of operating an elbow and tee drill dedicated machine, characterized in that the center line of the fittings 5 and the center line of the drill machine 10 coincide.

In addition, the clamping part 20 of the present invention further includes a holder 24 having a groove 25 for fixing the handle of the turntable 50 to maintain a fixed state during drilling of large-diameter fittings. It is intended to disclose a method of operating a special machine for elbow and tee drills.

In addition, in the present invention, the disk gear groove 62 of the ring gear shaft 60 and the gear of the disk gear 54 of the turntable 50 are formed in a radial shape at an angle of 45 degrees, and have a triangular column shape. It is formed and rotates only in a one-way direction, to disclose a method of operating an elbow and tee drill dedicated machine characterized in that the turntable is also rotated manually.

Due to the above solution, the present invention has the following effects.

First, it is possible to control the rotation angle and height of the fixed jig due to the index part, so that various types of fittings can be drilled with one drill machine.

Second, since a one-way clutch is provided between the turntable and the ring gear, the fixed jig can be rotated manually without a rotating motor.

Third, the installation space is small by applying one drill machine, so productivity can be secured when several units are installed in parallel.

1 is a side view (A) and a front view (B) of a preferred embodiment of the present invention.
2 is a perspective view (A) of the index unit 100 and an operation perspective view (B) of the holder 24.
3 is a perspective view of the index number unit 100 on which the index frame 83 is projected.
4 is a diagram showing the interior (A) and the interior configuration of the index frame 83 (B).
5 is an upper perspective view (A) and a lower perspective view (B) of the turn table 50 and the ring gear shaft 60.
6 is a configuration diagram of the height adjustment unit 90.
7 is a modified form of the fixing jig 30.
Figure 8 is a schematic view of the operation of a preferred embodiment of the present invention, a schematic diagram (A) for clamping and drilling, and a schematic diagram (B) in which the unclamping and drilling machine returns to the origin after the operation.
9 is a flow chart of a method of operation of a preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts that are not related to the description (general matters such as electric circuits, other necessary parts, etc.) are omitted, and the same reference numerals are attached to the same or similar components throughout the specification.

In addition, the size, color, and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, so the present invention is not necessarily limited to those shown in the drawings. In order to clearly express various parts and regions in the drawings, colors for each component are expressed as in the drawings, but it is obvious that the scope of the patent right includes all of the various colors.

The thickness and size of the drawings and components are also enlarged to clarify the expression. In addition, in the drawings, the thicknesses of some parts and regions are exaggerated for convenience of description.

The present invention relates to a method of operating a dedicated machine for elbow and tee drills, and in more detail, as a method of drilling fittings for high pressure, drilling of fittings of elbows to tees using one drill machine for hot forged elbows or tees. It relates to a method of operating an elbow and tee drill machine, characterized in that.

The present invention relates to a method of operating a dedicated machine for forming a center hole and drilling in hot forged fittings.

As conventional technologies for the above technology, Korean Patent Registration Nos. 10-1647645 and 10-1647642 are representative. The known technology discloses a multi-direction simultaneous drilling machine and a manufacturing method for improving the efficiency and productivity of work by simultaneously processing two elbow-shaped pipes in one process.

However, the above technology requires a plurality of drill equipment at the front and side, and is subject to the prerequisite that the installation space of the equipment is large.

Nowadays, there is a need for a technology capable of lowering the manufacturing cost by simultaneously performing small-scale production of multiple varieties and mass production of multiple varieties. In that respect, the above technology is suitable for mass production of small items, but not suitable for small quantity production of multiple kinds.

In the present invention, an effort was made to develop a flexible system capable of producing a wide variety of products, which is a problem of a wide installation space, which is a disadvantage of the prior art.

As a result, we intend to disclose the following technology.

The first is to apply only one drill machine 10 for drilling elbows, tees and 135 degree inclined fittings. .

Second, the fixed jig 30 is tilted and an index table that can be adjusted in height is to be started.

The third is to develop a structure capable of mechanical control rather than electric and electronic control due to chips or cutting oil generated in the drilling process.

Fourth, it is intended to apply a one-way clutch capable of manually rotating the turntable when the rotary motor 70 is broken or not operated.

In order to achieve the above object, the present invention is a fixed jig for fixing an elbow, a tee, and a 135 degree inclined fitting, and the one drill machine 10 has a shaft that moves horizontally and returns to the origin after performing a drilling operation. A dedicated machine capable of drilling and center holes of fittings of various angles by applying the index unit 100 that rotates 30 at a set angle, and a method of operation thereof are disclosed.

Figure 8 is a schematic view of the operation of a preferred embodiment of the present invention, a schematic diagram (A) for clamping and drilling, and a schematic diagram (B) in which the unclamping and drilling machine returns to the origin after the operation.

As shown in FIG. 8, in the order of drilling the fittings that are typically hot forged, first the clamping unit 20 is operated to fix the fittings 5 held in the fixing jig 30, the drill machine 10 ) Moves horizontally to perform center hole and drilling work.

Thereafter, the drill machine 10 returns to the origin, and when the clamping unit 20 also returns to its original position, the operator discharges the fittings or rotates it at a different angle and places it on the fixing jig.

1 is a side view (A) and a front view (B) of a preferred embodiment of the present invention, FIG. 3 is a perspective view of an index number unit 100 on which an index frame 83 is projected, and FIG. 4 is an index frame 83 It is an interior (A) and an interior configuration diagram (B).

1 to 4, the present invention maintains a constant height from the ground and supports the drill machine 10, the index support 2 and the clamping support 3, the main frame 1, and the main frame An index part 100 that is fastened to (1) and grips the fittings 5 with a fixing jig 30 and allows tilting and height adjustment, and an index support 80 that accommodates the index part 100 therein. , An elbow including a clamping unit 20 for fixing the fittings 5 held by the index unit 100 while the cylinder descends, and a center of the fittings 5 and a drill machine 10 for drilling It relates to a drilling method of a dedicated tee drill machine.

In more detail, in order to tilt the fixing jig 30 in the index unit 100, the table frame 51 fastened to the fixing jig 30, and one or more fastened to the outer circumferential surface of the table frame 51 The handle 52, the disk shaft 53 fastened to one side of the table frame 51, the connector shaft 55 formed in the center of the end of the disk shaft 53, and the disk shaft 53 A ten table 50 having a disk gear 54 having gears having a triangular column shape; A ring gear shaft (60) having a disk gear groove (62) mating with the disk gear (54) of the ten table (50) formed at an end portion and forming a ring gear (61) on an outer circumferential surface thereof; Including, but the fixed jig 30; including; a pinion gear 71 connected to the ring gear 61, and a rotation motor 72 having a rotation motor 72 for rotating the pinion gear 71 Inserting fittings into (P1); After the insertion step (P1), the clamping cylinder 21 is operated to lower the shaft to fix the fittings (5) (P2); After the fixing step (P2), the drilling machine (10) is horizontally moved to drill one side of the fittings (5) (P3); After the drilling step (P3), the drilling machine (10) returns to its original state, and the turntable (50) is rotated by the rotary motor unit (70) via the ring gear shaft (60) (P4); After the rotating step (P4), the drilling machine 10 horizontally moves to drill the other side of the fittings (5) (P5); After the drilling step (P5), the clamping cylinder (21) is operated and the shaft is raised to release the fixing of the fittings (5) (P6); After the unfixing step (P6), the step of discharging the fittings (5) drilled in the fixing jig (30) (P7); including, and repeating the above process.

The main frame 1 is a body that maintains a constant height from the ground and supports the drill machine 10, the index support 2 and the clamping support 3.

The drill machine 10 is fastened to one side of the main frame 1 and drills the central portion of the fittings 5 clamped to the fixing jig 30. Usually, 70 to 80% of the diameter of the finished product is cut. The rest of the part is processed through CNC to form internal pipes and threads.

2 to 3, the index support 80 accommodates a part of the ten table 50, the ring gear shaft 60, the rotary motor 70, and the height adjustment part 90 therein.

It is preferable that the index support 80 has a closed structure in order to protect the internal components from chips generated during the drilling process and cutting currents injected.

The index support 80 includes an index frame 83 having an inner receiving portion; An indicator 81 that is fastened to one side of the index frame 83 and displays the position of the handle of the ten table 50; Includes; an accessory pedestal 82 that is fastened to the internal components of the index frame 83.

The indicator 81 is simply a member for displaying a scale or a current state, and may include a stopper or a limit function.

It is preferable that the auxiliary support supports or is fastened to the reducer and the worm gear 93 of the rotary motor 70 and the height adjustment unit 90.

The index part 100 is fastened to the upper end of the index support 2 of the main frame 1, and is fastened with a fixing jig 30 that grips the fittings 5, and the rotation angle of the fixing jig and It is desirable to have a structure that can adjust the height.

When the clamping part 20 is located opposite the fixing jig 30, it is fastened with one side of the clamping support 3, and a clamping cylinder 21 for moving the shaft 22 in a vertical reciprocation, and , A shaft 22 forming a sealed space together with the clamping cylinder 21, and a contact member 23 for fixing the fittings by pressing the fittings 5 in contact with one side of the shaft 22. do.

2 is a perspective view (A) of the index unit 100 and an operation perspective view (B) of the holder 24.

As shown in FIG. 2, the clamping part 20 is characterized in that it further includes a holder 24 having a groove 25 for fixing the handle of the turntable 50.

Since the drill machine 10 moves horizontally and drills, a lot of force is not transmitted in the direction of rotation of the ten table. However, if the diameter of fittings is more than 300mm, cutting resistance increases, so vibration and turntable may rotate minutely during drilling.

Therefore, when drilling fittings of a large diameter, in order to suppress micro-rotation of the turntable, the clamping shaft 21 further includes a holder 24 having a groove 25 for fixing the handle of the turntable 50. do.

The clamping part 20 further includes a holder 24 having a groove 25 for fixing the handle of the turntable 50, and is characterized in that it maintains a fixed state during drilling of large-diameter fittings.

The biggest feature of the present invention is that only one drill machine 10 is configured.

Therefore, the method for forming the center hole of the elbow, tee, 135 degree inclined fittings and Y-shaped distribution fittings requires an index table that rotates the fixing jig 30 in the cutting direction of the fixed drill machine 10. .

As an example, the elbow and tee should be rotated 90 degrees after drilling on one side, and 135 degree fittings should be rotated 135 degrees after drilling on one side, and the Y-shaped distribution fittings are sequentially 135 after drilling on one side. You have to rotate 90 degrees.

Therefore, in order to tilt the fixing jig 30 in the index unit 100 of the present invention, the table frame 51 fastened to the fixing jig 30 and one or more fastened to the outer peripheral surface of the table frame 51 The handle 52, the disk shaft 53 fastened to one side of the table frame 51, the connector shaft 55 formed in the center of the end of the disk shaft 53, and the disk shaft 53 A ten table 50 having a disk gear 54 having gears having a triangular column shape; A ring gear shaft (60) having a disk gear groove (62) mating with the disk gear (54) of the ten table (50) formed at an end portion and forming a ring gear (61) on an outer circumferential surface thereof; And a rotation motor unit 70 having a pinion gear 71 connected to the ring gear 61 and a rotation motor 72 for rotating the pinion gear 71.

The fixing jig 30 includes a fixing frame 31 that is fastened to the turntable frame 51 and a pyramid 32 that fits to fit the shape of the fittings 5, and the pyramid 32 is curved depending on the case. Includes older brother.

7 is a modified form of the fixing jig 30.

As shown in Fig. 7, it is preferable that the fixing jig 30, like a printer ink cartridge, can be variously changed according to the diameter and shape of the fittings in order to hold the elbow, tee and Y-shaped distribution fittings. Accordingly, it is preferable that the fixing jig 30 has a structure that is easily fastened to the turntable frame 51.

FIG. 4 is an inner (A) and an inner configuration diagram (B) of the index frame 83, and FIG. 5 is an upper perspective view (A) and a lower perspective view (B) of the turntable 50 and the ring gear shaft 60. .

The turn table 50 includes a table frame 51 fastened to the fixing jig 30, at least one handle 52 fastened to the outer circumferential surface of the table frame 51, and the table frame 51 A disk gear 54 having a disk shaft 53 fastened to the side, a connector shaft 55 formed at the central end of the disk shaft 53, and a gear having a triangular column shape at the end of the disk shaft 53 Includes.

The handle 52 has two functions.

The first has an indicator function.

That is, it has a function of showing an angular state in connection with the indicator 81 of the index support 80. Each color of the handle to ensure more discernment. The shape and size may be different.

The second has a hand operated handle function.

That is, when the rotating motor is fixed or not operated, it has a handle function to manually rotate the fixing jig. This is possible because a one-way clutch is formed between the turntable 50 and the ring gear shaft 60.

5 is an upper perspective view (A) and a lower perspective view (B) of the turn table 50 and the ring gear shaft 60.

As shown in FIG. 5, in the present invention, the disk gear groove 62 of the ring gear shaft 60 and the gear of the disk gear 54 of the turntable 50 are formed in a radial shape at an angle of 45 degrees, It is formed in the form of a triangular column and is characterized by rotating only in a one-way direction.

The disk gear 54 is composed of a triangular pillar and a triangular pillar groove, and can be easily rotated by the handle 52 of the turntable 50, and rotates in only one direction due to the shape of the triangular pillar.

The reason that the disk gear 54 is configured in a radial form at an angle of 45 degrees is because the angle of the fittings is mostly included in a combination of 45 degrees or multiples thereof.

The disk gear groove 62 of the ring gear shaft 60 and the gear of the disk gear 54 of the turntable 50 are formed in a radial shape at an angle of 45 degrees, and formed in a triangular column shape in a one-way direction. It only rotates, and the operator can manually rotate the turntable by using the handle.

The connector shaft 55 is for securing a center position between the turntable 50 and the ring gear shaft 60, and has a rotating shaft function when manually rotating the handle.

The ring gear shaft 60 includes a disk gear groove 62 that mates with the disk gear 54 of the ten table 50 formed at an end thereof; It includes a ring gear 61 formed on the outer peripheral surface.

The rotation motor unit 70 includes a pinion gear 71 connected to the ring gear 61 and a rotation motor 72 that rotates the pinion gear 71.

The rotary motor 72 may also include a reducer and an oscillator function.

Oscillating refers to the function of converting the output shaft into a reciprocating rotational repetitive motion using an input shaft rotating at a continuous constant speed.

6 is a configuration diagram of the height adjustment unit 90.

As shown in Figure 6, for adjusting the height of the fixing jig 30 in the index portion 100 in the present invention, a fastening member 95 connected to the lower end of the ring gear shaft 60; A screw 94 connected to the fastening member 95 and rotating, a reducer and a worm gear 93; It characterized in that it comprises a height adjustment unit 90 having; a handle 91 for rotating the reducer and the worm gear 93 through the handle shaft 92 as a medium.

The fastening member 95 is connected to or fastened to the lower end of the ring gear shaft 60, and rises or descends by rotation of the screw 94.

In order to check the moving distance of the handle 91 and the position of the fixing jig, it is preferable to provide an indicator or a display device on one side of the index frame 83. The reason for installing the indicator on one side is that if only the handle 91 is rotated to the position indicated on the index support 80, the center line of the fittings 5 and the center line of the drill machine 10 match. Because.

The present invention has the following effects.

First, due to the index part, it is possible to control the rotation angle and height of the fixed jig, so that it is possible to drill various kinds of fittings.

Second, by providing a one-way clutch between the turntable and the ring gear, the fixing jig can be rotated manually.

Third, the installation space is small by applying one drill machine, so productivity can be secured when several units are installed in parallel.

Fourth, since the components of the present invention do not use electronic devices or electronic devices, but use a mechanical operation method, the greatest advantage is that an operator can manually operate when a failure occurs.

1: main frame, 2: index support, 3: clamping support,
4: controller, 5: elbow,
10: drill machine,
20: clamping part 21: clamping cylinder, 22: shaft,
23: contact member, 24: holder, 25: groove,
30: fixing jig, 31: fixing frame, 32: pyramid,
50: turntable, 51: table frame, 52: handle,
53: disk shaft, 54: disk gear, 55: connector shaft,
60: ring gear shaft, 61: ring gear, 62: disc gear groove,
70: rotary motor unit, 71: pinion gear, 72: rotary motor,
80: index support, 81: indicator, 82: accessory support,
83: index frame,
90: height adjustment unit, 91: handle, 92: handle shaft,
93: reducer and worm gear, 94: screw, 95: fastening member,
100: index part.

Claims (4)

The main frame (1) that maintains a constant height from the ground and supports the drill machine (10), the index support (2) and the clamping support (3), and is fastened to the main frame (1) and fixes the fittings (5). An index unit 100 gripped by a jig 30 and capable of tilting and adjusting height, an index support 80 accommodating the index unit 100 therein, and fittings gripped by the index unit 100 ( In the drilling method of an elbow and tee drill dedicated machine comprising a clamping unit 20 for fixing 5) while the cylinder is lowered, and a drill machine 10 for drilling and a center of the fittings 5,
In order to tilt the fixing jig 30 in the index part 100, the table frame 51 fastened to the fixing jig 30, and one or more handles 52 fastened to the outer circumferential surface of the table frame 51 And, a disk shaft 53 fastened to one side of the table frame 51, a connector shaft 55 formed in the center of the end of the disk shaft 53, and a triangular column shape at the end of the disk shaft 53 A ten table (50) having a disk gear (54) having a gear; A ring gear shaft (60) having a disk gear groove (62) mating with the disk gear (54) of the ten table (50) formed at an end portion and forming a ring gear (61) on an outer circumferential surface thereof; Including; a rotation motor unit 70 having a pinion gear 71 connected to the ring gear 61 and a rotation motor 72 for rotating the pinion gear 71,
Inserting fittings into the fixing jig 30 (P1);
After the insertion step (P1), the clamping cylinder 21 is operated to lower the shaft to fix the fittings (5) (P2);
After the fixing step (P2), the drilling machine (10) is horizontally moved to drill one side of the fittings (5) (P3);
After the drilling step (P3), the drilling machine (10) returns to its original state, and the turntable (50) is rotated by the rotary motor unit (70) via the ring gear shaft (60) (P4);
After the rotating step (P4), the drilling machine 10 horizontally moves to drill the other side of the fittings (5) (P5);
After the drilling step (P5), the clamping cylinder (21) is operated and the shaft is raised to release the fixing of the fittings (5) (P6);
After the unfixing step (P6), including the step (P7) of discharging the fittings (5) drilled in the fixing jig (30), the method of operating an elbow and tee drill dedicated machine, characterized in that repeating the above process .
The method of claim 1,
In order to adjust the height of the fixing jig 30 in the index unit 100,
A fastening member 95 connected to the lower end of the ring gear shaft 60;
A screw 94 connected to the fastening member 95 and rotating, a reducer and a worm gear 93;
Including a height adjustment unit 90 having; a handle 91 for rotating the reducer and the worm gear 93 via the handle shaft 92,
Prior to the step (P1) of inserting fittings into the fixing jig 30, the step of matching the center line of the fittings 5 and the center line of the drill machine 10 is further included,
The method of operating an elbow and tee drill dedicated machine, characterized in that the center line of the fittings 5 and the center line of the drill machine 10 are matched by rotating only the handle 91 to the position indicated on the index support 80 .
The method of claim 1,
The clamping part 20 further includes a holder 24 having a groove 25 for fixing the handle of the turntable 50, and an elbow, characterized in that it maintains a fixed state during drilling of large-diameter fittings. How to operate the tee drill machine.
The method of claim 1,
The disk gear groove 62 of the ring gear shaft 60 and the gear of the disk gear 54 of the turntable 50 are formed in a radial shape at an angle of 45 degrees, formed in a triangular column shape, and are in a one-way direction. Elbow and tee drill operation method, characterized in that it rotates only and can rotate the turntable manually.

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