KR101226636B1 - Apparatus for forming a hollow - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow processing apparatus for processing a long hollow shape on a workpiece.
Hollow processing apparatus of the present invention, the main frame formed with a rail in the vertical direction; A moving frame mounted on one surface of the workpiece and movable to the main frame in a vertical direction along the rail; A driving unit for moving the moving frame in a vertical direction; The lower part is fixedly mounted to the lower portion of the main frame vertically, and the bit is rotated mounted on the upper portion is made of a perforated portion disposed on the lower portion of the moving frame, the workpiece by the perforated portion when the moving frame is lowered It is characterized by processing a hollow shape in the.

Description

Hollow Processing Equipment {APPARATUS FOR FORMING A HOLLOW}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow processing apparatus for processing a long hollow shape on a workpiece.

The hollow processing apparatus can process hollow shapes on various workpieces and is mainly used for processing various kinds of wood such as conifers and hardwoods.

Such hollow processing apparatus can be applied to the market for wood building, landscaping materials market, interior market and household goods market.

Specifically, in the household goods market, various functions such as lighting, tables, consoles, chairs, umbrella flowers, golf club flowers, etc. are emphasized in terms of thermal insulation, heat insulation, humidity control, light weight, corrosion resistance, and storage space. It can be applied and can be applied considering practicality and aesthetics.

The conventional hollow processing apparatus as described above is shown in Registered Utility Model Publication No. 20-0210388.

1 is a front view showing a conventional hollow processing apparatus.

Conventional hollow processing apparatus is composed of a die 50, a transfer screw 24, a fluid 22 and a drill 14, as shown in FIG.

The die 50 is horizontally disposed to be long, a pedestal 40 is formed on the upper left end, and the frame 30 is formed on the upper right end.

In addition, a bracket 26 is formed between the frame 30 and the pedestal 40.

The upper part of the pedestal 40 is formed with a case 32 into which the workpiece 100 such as wood is inserted.

The workpiece 100 inserted into the case is supported in the right direction by a fixing bracket 36 disposed at the left end of the case at the top of the bar bed.

The motor 28 is mounted on the right side of the frame to rotate the transfer screw 24.

The bracket 26 supports the transfer screw 24 rotated by the motor 28 in the upward direction.

The transfer screw 24 has a left end rotatably coupled to the pedestal, the right end rotatably coupled to the frame 30 is rotated by the motor 28.

In addition, the bracket 26 is upwardly supported.

The fluid 20 is coupled to the transfer screw 24 to be horizontally movable.

Specifically, the fluid 20 moves to the left and right as the transfer screw 24 rotates by the motor 28.

The gearbox 12 is mounted on the upper portion of the fluid, and the motor 10 is mounted on the gearbox 12 to operate the gearbox 12.

The drill 14 has a right end mounted on the gearbox 12, and a left end disposed in the direction of the workpiece 100, and rotates as the gearbox 12 is operated by the motor 10. Done.

Accordingly, when the transfer screw 24 is rotated to move the fluid 20 to the left side, the drill 14 processes a hollow shape on the workpiece 100.

However, when the conventional hollow processing apparatus as described above is horizontally disposed so that the drill 14 forms a hollow shape in the workpiece 100, a machining chip is generated to generate the workpiece 100 and the drill 14. There is a problem that the machining is difficult as it is stacked between.

In addition, there is a limitation in the size of the workpiece that can be processed is difficult to process a workpiece of various sizes.

The present invention is to solve the above-mentioned problems, by placing the workpiece vertically and vertically and moved in the vertical direction, the processing chip generated during the hollow-shaped processing is naturally discharged to the lower side, the processing is easy and the workpiece of various sizes It is an object of the present invention to provide a hollow processing apparatus capable of processing.

In order to achieve the above object, the hollow processing apparatus of the present invention includes: a main frame in which a rail is formed in a vertical direction; A moving frame mounted on one surface of the workpiece and movable to the main frame in a vertical direction along the rail; A driving unit for moving the moving frame in a vertical direction; The lower part is fixedly mounted to the lower portion of the main frame vertically, and the bit is rotated mounted on the upper portion is made of a perforated portion disposed on the lower portion of the moving frame, the workpiece by the perforated portion when the moving frame is lowered Machine the hollow shape in

The moving frame includes a vertical frame which moves up and down along the rail by the driving unit; The workpiece is mounted on one surface, and consists of a rotating frame rotatably coupled to the vertical frame by a shaft.

The vertical frame is mounted with a horizontal cylinder for advancing the shaft back and forth in the direction of the rotation frame.

The vertical frame is formed with a coupling hole to which the shaft is coupled, one end of the shaft is coupled to the rotating frame, the other end is inserted through the coupling hole, the horizontal cylinder is one end is mounted to the vertical frame, The other end is mounted to the other end of the shaft.

Fixing plates for fixing the workpiece are respectively coupled to both ends of the rotating frame, and a plurality of fixing protrusions protrude from one surface of the fixing plates facing each other.

The fixing plate is provided with a through hole into which the bit is inserted, and the fixing protrusion is disposed in a circular shape around the through hole in the fixing plate, and the fixing protrusion is disposed at different distances from the center of the fixing plate.

The rotating frame is equipped with a compression cylinder for moving the fixed plate in the longitudinal direction of the rotating frame.

One end of the rotating frame is formed with guide plates on both sides of the fixing plate, the guide plate is formed with a guide groove in the longitudinal direction of the rotating frame, one end of the compression cylinder is mounted to the fixing plate, the other end of the guide plate Is mounted on, the fixed plate is moved along the guide groove by the compression cylinder.

It further comprises an air pump connected to the perforations, the pneumatic passage is formed in the perforations, the air pump injects compressed air to the top of the bit through the pneumatic passage.

A limit switch is mounted below the main frame, and when the vertical frame is lowered and the limit switch is pressed, the driving unit moves the vertical frame upward.

One surface of the vertical frame is formed with a seating groove for mounting the other surface of the rotating frame when the shaft is retracted.

Hollow processing apparatus according to the present invention has the following effects.

The moving frame equipped with the workpiece such as wood moves in the vertical direction and processes the hollow shape on the workpiece, so that the processing chip generated during the hollow processing is naturally discharged to the lower portion, so that the processing is easy.

In addition, the rotating frame is rotated with respect to the vertical frame and the upper and lower sides are changed to process both ends, it is possible to process a workpiece of various sizes, such as a long workpiece.

In addition, the rotation frame is moved back and forth with respect to the vertical frame, it is easy to mount the workpiece to the rotation frame or to rotate the rotation frame.

In addition, the fixing projection protrudingly formed on the fixing plate, it is possible to more firmly fix the workpiece.

In addition, the fixing plate protrudes a plurality of fixing projections different from each other from the center of the fixing plate, it is possible to easily fix the workpieces of various sizes to the rotating frame.

In addition, the compressed air is injected into the upper end of the bit through the pneumatic passage by the air pump, it is easy to discharge the processing chip generated during the processing of the workpiece, there is an effect to cool the bit.

In addition, the rotation frame is seated in the seating groove formed in the vertical frame, it can be fixed so that the rotation frame does not rotate during the vertical movement of the moving frame.

1 is a front view showing a conventional hollow processing apparatus,
2 is a front view of a hollow processing apparatus according to an embodiment of the present invention,
3 is a plan view of a hollow processing apparatus according to an embodiment of the present invention,
4 is a side view of a hollow processing apparatus according to an embodiment of the present invention,
5 is an exploded view showing an exploded view of FIG. 4;
6 is a front view of a vertical frame of the hollow processing apparatus according to the embodiment of the present invention,
7 is a front view of a rotating frame of the hollow machining apparatus according to the embodiment of the present invention,
8 is a plan view of the fixing plate of the hollow processing apparatus according to the embodiment of the present invention,
9 is a cross-sectional view taken along line AA of FIG. 2;
10 is a cross-sectional view taken along line BB of FIG.
11 is a plan view of a bit of a hollow processing apparatus according to an embodiment of the present invention,
12 is a front view showing a state in which the moving frame is lowered in FIG.
Figure 13 is a side view showing a state in which the rotating frame is advanced in FIG.
14 is a front view showing a state in which the rotating frame is rotated in Figure 2,
15 is a front view showing a state in which the rotating frame further rotated in FIG. 14,
16 is an operating state of the hollow processing apparatus according to an embodiment of the present invention,

2 is a front view of a hollow machining apparatus according to an embodiment of the present invention, FIG. 3 is a plan view of a hollow machining apparatus according to an embodiment of the present invention, and FIG. 4 is a side view of a hollow machining apparatus according to an embodiment of the present invention. 5 is an exploded view illustrating an exploded view of FIG. 4, and FIG. 6 is a front view of the vertical frame of the hollow processing apparatus according to the embodiment of the present invention, and FIG. 7 is a view of the rotating frame of the hollow processing apparatus according to the embodiment of the present invention. 8 is a plan view of a fixing plate of a hollow processing apparatus according to an embodiment of the present invention, FIG. 9 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 10 is a cross-sectional view taken along line BB of FIG. 4, Fig. 11 (a) is a plan view of the bit of the hollow working apparatus according to the embodiment of the present invention, and Fig. 11 (b) is a side view of the bit of the hollow working apparatus according to the embodiment of the present invention.

Hollow processing apparatus of the present invention, as shown in the drawing, the main frame 100, the moving frame 200, the driving unit 300, the drilling unit 400, the air pump (not shown) and the control unit (not shown) Is done.

The main frame 100 includes a base 110 and a support frame 120.

As shown in FIGS. 2 and 3, the base 110 is formed in a quadrangular shape and disposed on the ground, and the support frame 120 protrudes upward from the top.

Although not shown in the drawings, a dust collecting part (not shown) is formed at the upper portion of the base 110 to collect the processed chips generated during the processing of the workpiece 101 around the perforation part.

In this way, by forming the dust collecting part capable of collecting the processed chips, the generated processed chips can be used for biofuels such as pulp or felyl.

As shown in FIGS. 2 and 3, the support frame 120 is disposed to be spaced apart from each other, and a rail R ₁ is formed to extend in a vertical direction on one surface facing each other.

The moving frame 200 has a workpiece 101 mounted on one surface thereof, and is mounted to the main frame 100 so as to be movable upward and downward along the rail R ₁ .

The moving frame 200 is composed of a vertical frame 210 and a rotating frame 220.

The vertical frame 210 moves up and down along the rail R ₁ by the driving part 300.

In detail, the vertical frame 210 is formed in a rectangular parallelepiped shape, and as shown in FIG. 3, guide members G ₁ moving along the rail R _{1 are} provided at both sides of the support frame 120. Is mounted.

As shown in FIG. 6, the guide member G ₁ is mounted on a plurality of side surfaces of the vertical frame 210.

A mounting groove 211 is formed on one surface of the vertical frame 210, that is, the front surface to which the rotating frame 220 is coupled, on which the other surface of the rotating frame 220 is seated.

The seating groove 211 is recessed from the front of the vertical frame 210 to the rear as shown in Figures 3 and 6 is formed long up and down.

The rotation frame 220 is seated in the seating groove 211 as described above to prevent rotation of the rotation frame 220.

And the vertical frame 210 is formed with a coupling hole 212 is coupled to the shaft 214 to be described later.

As shown in Figure 6 and 9, the coupling hole 212 is formed in a circular shape and penetrates in the front and rear direction.

In addition, the vertical frame 210 is mounted with a horizontal cylinder 213 for advancing the shaft 214 back and forth in the direction of the rotation frame 220.

Specifically, as shown in FIG. 10, one end of the horizontal cylinder 213 is mounted to the vertical frame 210, and the other end is mounted to the shaft 214.

The horizontal cylinder 213 advances the shaft 214 back and forth by hydraulic pressure.

The shaft 214 rotatably couples the rotating frame 220 to the vertical frame 210.

The shaft 214 is formed in a cylindrical shape, as shown in Figure 9, one end is coupled to the rotating frame 220, the other end is inserted through the coupling hole 212.

5 and 9, the engaging jaw 215 is protruded from the outer circumferential surface of the shaft 214 so that the rotary frame 220 is one end of the shaft 214, that is, from the front end to the front and rear direction. It is fixed.

As described above, one end of the horizontal cylinder 213 is mounted to the vertical frame 210, and the other end is coupled to the other end of the shaft 214 to lift the shaft 214 by the horizontal cylinder 213. Rotate back and forth in the direction of the rotating frame 220.

Accordingly, the other surface of the rotating frame 220 is seated in the seating groove when the shaft 214 is reversed.

The rotating frame 220 is formed in a rectangular parallelepiped shape and seated in the seating groove 211 as described above.

In addition, the rotating frame 220 is formed with a rotating hole 221 penetrating in the front and rear direction.

The rotating hole 221 is formed in a circular shape as shown in Figure 7, the front end of the shaft 214 is inserted.

Accordingly, as described above, the rotation frame 220 is disposed between the front end of the shaft 214 and the locking step 215 to move in the front and rear direction together with the shaft 214.

In addition, the rotation frame 220 is rotatably coupled to the front end of the shaft 214 is rotated with respect to the vertical frame 210.

In some cases, an additional motor may be provided to automatically rotate the rotating frame 220.

In this case, the motor is operated by the controller (not shown) to be described later.

In addition, fixing plates 222 (a) and 222 (b) fixing the workpiece 101 are formed at upper and lower ends of the rotating frame 220, respectively.

The fixing plates 222 (a) and 222 (b) are formed in a rectangular plate shape as shown in FIG. 8 and a through hole 223 is formed therein.

The through hole 223 is formed to penetrate in a circular shape and the bit 420 is inserted therein.

A plurality of fixing protrusions 224 are formed to protrude from one surface of the fixing plates 222 (a) and 222 (b) facing each other.

As shown in FIG. 8, the fixing protrusion 224 is disposed in a circle around the through hole 223 in the fixing plates 222 (a) and 222 (b).

In addition, the fixing projections 224 are arranged differently from the center of the fixing plate 222 (a), 222 (b).

As the fixing projections 224 protrude from the fixing plates 222 (a) and 222 (b) as described above, the workpiece 101 can be more firmly fixed, and the fixing protrusions 224 are fixed to the fixing plates. Since the distances from the centers of the centers 222 (a) and 222 (b) are different from each other, the workpieces 101 having various sizes can be easily fixed to the rotating frame 220.

The fixing plates 222 (a) and 222 (b) include a first fixing plate 222 (a) and a second fixing plate 222 (b).

As shown in FIG. 7, the first fixing plate 222 (a) is disposed at an upper end of the rotating frame 220, and guide members G ₂ are mounted at both sides thereof.

In addition, guide plates 225 are formed at both sides of the first fixing plate 222 (a) in the rotating frame 220.

The guide plate 225 is formed in a rectangular plate shape as shown in Figures 4 and 5 is formed perpendicular to the front of the rotating frame 220.

3 and 7, rails R ₂ are formed on one surface of the guide plate 225 facing each other in the vertical direction.

The first fixing plate 222 (a) on which the guide member G ₂ is mounted moves along the rail R ₂ .

In addition, as shown in Figure 4, the guide plate 225 is formed with a guide groove 226 in the longitudinal direction of the rotating frame 220.

Compression cylinders 227 are mounted to the guide plates 225 formed on both sides of the first fixing plate 222 (a).

The compression cylinder 227 is disposed in the longitudinal direction of the rotating frame 220, that is, opposite to the first fixing plate 222 (a) as shown in Figure 7 The workpiece 101 is fixed by moving in the direction of the second fixing plate 222 (b).

Specifically, as shown in FIGS. 4 and 7, one end of the compression cylinder 227 is mounted to the first fixing plate 222 (a) through the guide groove 226, and the other end of the compression cylinder 227. 225 is mounted.

The compression cylinder 227 allows the first fixing plate 222 (a) to move along the guide groove 226 by hydraulic pressure.

In addition, as described above, the guide part G ₂ moves along the rail R ₂ .

As shown in FIG. 7, the second fixing plate 222 (b) is disposed at a lower end of the rotating frame 220, that is, on the opposite side to which the first fixing plate 222 (a) is disposed.

The second fixing plate 222 (b) has the same shape as the first fixing plate 222 (a) and is disposed to face each other.

Meanwhile, unlike the first fixing plate 222 (a), the second fixing plate 222 (b) is fixedly mounted to the rotating frame 220 and compressed by the first fixing plate 222 (a). Support and fix the workpiece 101.

The driving unit 300 moves the moving frame 200, that is, the vertical frame 210 in the vertical direction.

The drive unit 300 is composed of a drive motor 310 and the transfer screw 320 as shown in FIG.

The driving motor 310 is disposed between the support frame 120 on the upper surface of the base 110.

The transfer screw 320 is disposed between the support frame 120, the lower end is connected to the drive motor 310 and the upper end is connected to the vertical frame 210.

Accordingly, the transfer screw 320 is rotated by the drive motor 310 to move the vertical frame 210 up and down.

As shown in FIG. 9, the perforation part 400 is disposed in front of the driving part 300, and a lower part thereof is fixedly mounted perpendicularly to the lower part of the main frame 100, that is, the base 110.

The perforation 400 is composed of a housing 410, a bit 420 and a processing motor (not shown).

The housing 410 is formed in a cylindrical shape, and the bit 420 is rotatably mounted on an upper portion of the housing 410, and is disposed below the moving frame 200.

In addition, a pneumatic passage (not shown) is formed in the housing 410.

One end of the pneumatic passage is connected to the air pump (not shown) and the other end is connected to the upper end of the bit 420.

The bit 420 is rotatably mounted on the upper portion of the housing 410.

The bit 420 is detachably mounted to the housing 410 and can be replaced.

As shown in FIG. 11, the bit 420 is formed to protrude to both sides, and the processing blade 422 is mounted on the top thereof.

As shown in FIG. 11B, the processing blade 422 is formed to be spaced apart from each other to smooth discharge of the processing chip generated during processing of the workpiece 101 and to cool the processing blade 422. It is effective to let.

An injection hole 421 is formed between the processing edge 422 at the upper end of the bit 420 to communicate with the pneumatic passage.

In some cases, a drill may be mounted on the upper end of the bit 420 to facilitate processing.

The processing motor (not shown) rotates the bit 420.

Accordingly, when the moving frame 200, that is, the vertical frame 210 descends, the bit 420 rotated by the processing motor penetrates the through hole 223 and is hollow in the workpiece 101. Will be processed.

The air pump (not shown) is connected to the pneumatic passage as described above to inject compressed air to the upper end of the bit 420, that is, the injection hole 421 through the pneumatic passage.

In this way, by blowing compressed air to the upper end of the bit 420, it is easy to discharge the processing chip generated during the processing of the workpiece 101, it is effective to cool the bit 420.

The controller (not shown) controls the hydraulic pressure to operate the horizontal cylinder 213 and the compression cylinder 227 to advance and rotate the rotating frame 220 and operate the first fixing plate 222 (a).

In addition, a lower limit switch (not shown) is mounted on the lower portion of the main frame 100, that is, the upper portion of the base 110, and when the vertical frame 210 descends to press the limit switch, the driving unit is controlled by the controller. By operating 300, the vertical frame 210 is moved upward.

Specifically, when the hollow shape is processed on the workpiece 101, the vertical frame 210 is lowered, and when the descending vertical frame 210 presses the limit switch, the controller controls the driving unit 300. The vertical frame 210 is moved in the opposite direction, ie, upward direction by the driving unit 300 by operating in the opposite direction.

In addition, the control unit stabilizes the system by controlling the drive motor when the bit 420 is overloaded when the workpiece 101 is hollowed.

As described above, the moving frame 200 equipped with the workpiece 101 such as wood moves upward and downward, and processes the hollow shape on the workpiece 101, so that the processing chip generated during the hollow processing is naturally lowered. Is discharged to the processing of the workpiece 101 is easy.

Hereinafter, the operation method of the hollow processing apparatus according to the above-described configuration.

FIG. 12 is a front view showing a state in which the moving frame is lowered in FIG. 2, FIG. 13 (a) is a side view showing a state in which the rotating frame is advanced in FIG. 4, and FIG. Figure 1 is a plan view showing a state, Figure 14 is a front view showing a state in which the rotating frame is rotated in Figure 2, Figure 15 is a front view showing a state in which the rotation frame further rotated in Figure 14, Figure 16 (a) is the present invention 16 is a view showing a state in which the workpiece is mounted in the hollow processing apparatus according to an embodiment of the present invention, Figure 16 (b) is a view showing a state in which the moving frame is processed to the workpiece in Figure 16 (a), Figure 16 (c) is a view showing a state in which the moving frame is raised in Figure 16 (b), Figure 16 (d) is a view showing a rotation frame rotated in Figure 16 (c), Figure 16 (e) At 16 (d), the rotating frame is rotated further to change the top and bottom of the rotating frame. FIG. 16 (f) is a view showing a state in which a moving frame descends to process a workpiece in FIG. 16 (e).

FIG. 16 schematically shows a hollow processing apparatus in which the workpiece 101 is mounted.

As shown in Figure 16 (a), the moving frame 200 That is, the workpiece 101 such as wood is mounted on the rotating frame 220.

When the workpiece 101 is mounted, the workpiece 101 is mounted on the rotary frame 220 by advancing the rotary frame 220 as shown in FIG. 13.

After mounting the workpiece 101 to the rotating frame 220, the compression cylinder 227 is operated so that the first fixing plate 222 (a) presses the workpiece 101 downward. Let's do it.

Alternatively, as shown in FIG. 14, the rotating frame 220 is rotated in a state in which the rotating frame 220 is advanced to be horizontally disposed on the ground, and then the workpiece 101 may be mounted.

After the workpiece 101 is mounted on the rotating frame 220, the horizontal frame 213 is moved backwards by rotating the vertically arranged vertically rotating frame 220.

When the rotating frame 220 is reversed, it is inserted into the seating groove 211 as described above and cannot rotate.

In the state in which the rotating frame 220 is seated in the seating groove 211, as shown in FIG. 16B, the driving unit 300 is operated to lower the moving frame 200.

Figure 16 (b) is shown by cutting a portion of the lower end of the workpiece 101 to show the state in which the workpiece 101 is processed.

At this time, the bit 420 is rotated by the processing motor, the workpiece through the through-hole 223 formed in the second fixing plate 222 (b) as the vertical frame 210 is lowered The hollow shape is machined at 101.

Specifically, the bit 420 rotates to process a hollow shape from the bottom of the workpiece 101 and at the same time, the top of the bit 420 sprays compressed air through the pneumatic passage by the air pump.

As such, by processing the hollow shape vertically and vertically on the workpiece 101, the processing chip generated during the hollow processing is naturally discharged to the lower portion.

Furthermore, by injecting compressed air from the upper end of the bit 420 during the hollow processing, it is easy to process the hollow shape on the workpiece 101 by increasing the discharge speed of the processing chip.

When the vertical frame 210 descends and processes the hollow shape by a predetermined length (usually half of the length of the workpiece 101) at one end of the workpiece 101, the limit switch is pressed.

Accordingly, as shown in FIG. 16C, the controller changes the rotation direction of the driving unit 300 so that the moving frame 200 is raised by the driving unit 300.

When the vertical frame 210 rises and is disposed above the perforation part 400, the rotating frame 220 is rotated in the same manner as described above to move away from the seating groove 211 and then rotate.

Then, as shown in Figure 16 (d) and 16 (e), by rotating the rotating frame 220 to change the position of the top and bottom of the rotating frame 220.

That is, the first fixing plate 222 (a) is disposed below and the second fixing plate 222 (b) is disposed above.

In the above state, the rotating frame 220 is reversed to repeat the hollow shape processing on the workpiece 101 as shown in FIG. 16 (f).

Figure 16 (f) is shown by cutting a portion of the lower end of the workpiece 101 to show the state in which the workpiece 101 is processed as shown in Figure 16 (b).

Specifically, the hollow shape is processed at the other end of the workpiece 101 disposed below and communicates with the hollow shape previously formed at one end of the workpiece 101.

As such, when the hollow shape penetrates the workpiece 101 in the longitudinal direction, the moving frame 200 is raised as shown in FIG.

And when the hollow shape is processed on the workpiece 101, the hollow shape is formed on the workpiece 101 by using a bit having a diameter that is primarily smaller than the bit used for the primary processing in the secondary processing. Replace with bits to machine larger hollow shapes.

In this way, a larger hollow shape can be efficiently processed through secondary processing.

In addition, by processing the hollow shape on both ends of the workpiece 101, the long workpiece (101) can also be easily and quickly process the hollow shape.

The hollow working apparatus of the present invention is not limited to the above-described embodiments, and can be variously modified and implemented within the range in which the technical idea of the present invention is permitted.

100: main frame, 101: workpiece, 110: base, 120: support frame, 200: moving frame, 210: vertical frame, 211: seating groove, 212: coupling hole, 213: horizontal cylinder, 214: shaft, 215: Hanging jaw, 220: rotating frame, 221: rotating hole, 222 (a): first fixing plate, 222 (b): second fixing plate, 223: through hole, 224: fixing protrusion, 225: guide plate, 226: guide groove , 227: compression cylinder, 300: drive part, 310: drive motor, 320: feed screw, 400: perforation part, 410: housing, 420: bit, 421: injection hole, 422: cutting blade,

Claims (7)

delete A main frame in which rails are formed in the vertical direction;
A moving frame mounted on one surface of the workpiece and movable to the main frame in a vertical direction along the rail;
A driving unit for moving the moving frame in a vertical direction;
The lower part is fixedly mounted to the lower portion of the main frame vertically, and the bit is rotated mounted on the upper portion is made of a perforated portion disposed in the lower portion of the moving frame,
When the moving frame is lowered by processing the hollow shape on the workpiece by the perforations,
The moving frame,
A vertical frame moving up and down along the rail by the driving unit;
The workpiece is mounted on one surface, the hollow processing device, characterized in that consisting of a rotating frame rotatably coupled to the vertical frame by a shaft. The method of claim 2,
In the vertical frame,
Is equipped with a horizontal cylinder for advancing the shaft back and forth in the direction of the rotation frame,
A coupling hole to which the shaft is coupled is formed,
The shaft is one end is coupled to the rotating frame, the other end is inserted through the coupling hole,
The horizontal cylinder is hollow processing apparatus, characterized in that one end is mounted to the vertical frame, the other end is mounted to the other end of the shaft. The method of claim 2,
Both ends of the rotating frame are fixed to each of the fixing plates for fixing the workpiece,
A plurality of fixing protrusions protrude from one surface of the fixing plate facing each other,
The fixing plate is formed with a through hole into which the bit is inserted,
The fixing projection is arranged in a circular shape around the through hole in the fixing plate, the hollow processing apparatus, characterized in that the distance from the center of the fixing plate is arranged different from each other. 5. The method of claim 4,
The rotating frame is a hollow processing device, characterized in that the compression cylinder for mounting the fixed plate in the longitudinal direction of the rotating frame is mounted. The method of claim 2,
It further comprises an air pump connected to the perforation,
The perforated part is formed with a pneumatic passage,
And the air pump injects compressed air to the upper end of the bit through the pneumatic passage. The method of claim 3,
Hollow processing apparatus, characterized in that the one side of the vertical frame is formed with a seating groove is seated on the other side of the rotating frame when the shaft is retracted.

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