KR100698019B1 - An apparatus for polishing an inside diameter of a pipe - Google Patents

Abstract

Disclosed is a pipe inner diameter polishing device for polishing an inner diameter of a product (pipe) such as a stainless steel pipe used in semiconductor tubes, food and beverage tubes, sanitary tubes, and the like. The pipe internal polishing apparatus includes a base, one end of which can be converted into an oblique phase with respect to the other end. Pipe operation line is installed on one side of the base to fix and rotate the pipe. The polishing rod operation line is installed on the other side of the base to fix and move the polishing rod to fit inside the pipe mounted on the pipe operation line. Due to this structure, it is possible to effectively polish the inner diameter of the stainless steel pipes used in semiconductor tubes, food and beverage tubes and sanitary tubes.

Grinding rods, pipes, stainless steel and internal grinders.

Description

Pipe Internal Grinding Device {AN APPARATUS FOR POLISHING AN INSIDE DIAMETER OF A PIPE}

1 is a block diagram of a pipe inner diameter polishing apparatus according to a preferred embodiment of the present invention;

Figure 2 is a front view of the pipe inner diameter polishing apparatus according to a preferred embodiment of the present invention;

3 is a plan view of the first operating unit of the pipe storage line shown in FIG. 2;

Figure 4 is an enlarged perspective view of the main portion of the state just before fitting the pipe to the first connecting rotary tube of the first operating unit shown in FIG.

5 is a front view of FIG. 4;

6 is a cross-sectional view along the line A-A shown in FIG.

7 is a perspective view and an enlarged view illustrating a second operation unit and a storage unit shown in FIG. 1;

FIG. 8 is a front view of FIG. 7, in which FIG. 8A is before the pipe is coupled to the second connecting rotary tube, and FIG. 8B is the state in which the pipe is coupled to the second connecting rotary tube.

9 shows FIG. 7 in a different direction;

FIG. 10 is a perspective view from behind of the pipe storage line shown in FIG. 2; FIG.

FIG. 11 is a perspective view of FIG. 10 shown in another direction;

12 is a partial cross-sectional view showing a first support unit in FIG.

13 is a side view of FIG. 12;

FIG. 14 is an installation state diagram of the first support unit and the clamping unit in FIG. 11; FIG.

FIG. 15 shows the pipe operation line shown in FIG. 2 from the direction of the water storage unit; FIG.

16 is a perspective view of the polishing rod operating line shown in FIG.

17 is an enlarged perspective view of the third operating unit shown in FIG. 16;

18 is a front view of FIG. 16;

19 is a rear view of FIG. 16;

20 is a view from above of FIG. 16;

FIG. 21 is a perspective view of FIG. 19 viewed from another direction; FIG.

22 is a view showing an installation state of the second mobile unit shown in FIG.

23 is an enlarged perspective view of main parts of the driving rail and the driving roller shown in FIG. 22;

24 is a view showing a coupling relationship between the third operating unit and the first mobile unit shown in FIG. 16;

25 is a view showing a movement state of the polishing rod according to the operation of the first mobile unit shown in FIG. 16, FIG. 25A is before the movement of the first operating unit, FIG. 25B is after the movement of the first mobile unit, and FIG. 25C After the movement of the second mobile unit;

Figure 26 is a perspective view of the installation state of the protective cover of the pipe internal polishing apparatus according to a preferred embodiment of the present invention; And

27 is an enlarged perspective view illustrating main parts of FIG. 26.

<Description of the symbols for the main parts of the drawing>

GM: Polishing rod P: Pipe

B: Base 100: Pipe Operating Line

110: first operating unit 120: second operating unit

130: sliding member 140: water storage unit

150: first receiving unit 160: clamping unit

200: grinding rod operating line 210: third unit

220: first mobile unit 230: guide

240: second mobile unit 260: reservoir

270: second support unit 280: support

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe internal polishing apparatus, and more particularly, to a pipe internal polishing apparatus for polishing an internal diameter of a pipe such as a stainless steel pipe used in semiconductor tubes, food and beverage tubes, and sanitary tubes.

Generally, a pipe is manufactured using the strip | belt-shaped board | plate material which has a predetermined width as a raw material. That is, the pipe is a first step of continuously supplying a strip-shaped plate; A second step of winding the plate material supplied through the first step to have a circular cross section as a plurality of rollers; A third process of forming a circle through the second process and continuously welding the portions where both ends contact each other by a method such as argon (Ar) welding; A fourth step of compressing and treating the weld bead protruding from the inner and outer peripheral surfaces of the welded portion through the third step; And a fifth step of cutting the pipe passed through the fourth step into a predetermined length.

In the pipe manufactured as described above, even if a welding bead formed on the outer circumferential surface of the pipe during the welding process is compressed into a bead processing machine, the pipe cannot be processed smoothly. Since the outer circumferential surface of the pipe is exposed to the outside, polishing is very difficult. The weld bead on the outer circumferential surface can be polished smoothly and smoothly, while the inner circumferential surface of the pipe is concealed inside, so that the polishing process is not easy, and the longer the length of the pipe, the more difficult the polishing of the inner diameter is.

By the way, the pipe used as a sanitary pipe for transporting food materials in food processing companies, etc. should be that the inner diameter is processed very smoothly, more preferably should be the inner diameter plating with a plating material that is not harmful to the human body, as described above Naturally, it is impossible to use the sanitary pipe without removing the beads generated during welding on the inner circumferential surface of the manufactured pipe, or even if the weld beads of the inner diameter of the pipe are crimped with the bead processor, the compressed beads are not processed smoothly. Since both parts protrude from the inner diameter of the pipe with fine unevenness, the use as a sanitary pipe is inadequate, and furthermore, the inner surface of the pipe cannot be sanitized without polishing or grinding. For this reason, pipes that are not polished and sanitary plated with smooth and smooth roughness cannot be used as sanitary pipes.

As a typical representative method for meeting this demand, it was filed by Daemyung Metal Industry Co., Ltd. and registered Korean Utility Model No. 20-0258105 (Invention: Pipe inner diameter grinder) as of December 7, 2001. There is a bar. This had the effect of being able to cleanly remove foreign substances and inner beads attached to the inner surface of the pipe. However, the polished state of the pipe inner diameter must satisfy the demanding standards to be suitable for semiconductor tubes, food and beverage tubes and sanitary tubes. However, when the inner diameter of the pipe is polished using the pipe inner diameter grinder according to the prior art, the polishing condition is not good, and thus the semiconductor tube or the like cannot be satisfied. In addition, the pipe inner diameter grinder of the prior art has a problem that it is inconvenient to use because it is not partially automated.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a pipe internal polishing apparatus that can effectively polish the pipe internal diameter using air pressure.

In order to achieve the above objects, the present invention

Pipe internal polishing device,

A base whose one end is inclined relative to the other end;

A pipe operation line installed at one side of the base to fix and rotate the pipe; And

An operation line which is installed on the other side of the base to fix and move the polishing rod to fit inside the pipe mounted on the pipe operation line, and the air pressure is injected into the polishing rod to stretch the surface of the polishing rod.

It provides a pipe internal polishing device comprising a.

Preferably, the pipe operation line is a first operation unit which is disposed at one end of the base is coupled to a portion of the pipe; A second operation unit installed at the base so as to be slid at a predetermined interval from the first operation unit and to which the other end of the pipe is connected; And a first support unit provided in at least one of the bases between the first operation unit and the second operation unit.

Preferably, the first operating unit comprises a first fixed housing provided on the surface of the base; A hollow first connecting rotary tube rotatably penetrating in the longitudinal direction of the first fixed housing and having one end fitted with a portion of the pipe; A first connection pulley connected to one side of the first connection rotary tube to transmit a driving force; And a first drive motor rotatably installed with a first drive shaft to transmit a driving force to the first connection pulley.

Preferably, a first fastener is screwed to an outer diameter of the free end of the first connecting rotary tube so that the pipe is tightly coupled to an inner diameter of the first connecting rotary tube, wherein the first fastener is coupled to A plurality of first tightening grooves are formed in the longitudinal direction at the free end of the first connecting rotary tube, and a first expansion groove is formed on the inner inner wall of the first tightening groove.

Preferably, the second operating unit includes a second fixed housing provided on the surface of the base; A hollow second connecting rotary tube rotatably penetrating in the longitudinal direction of the second fixed housing and having one end fitted with one end of the pipe; A second connection pulley connected to one side of the second connection rotary tube to transmit a driving force; And a second drive motor rotatably connected to the second connection pulley to output a driving force.

Preferably, the second operating unit further includes a sliding member including a sliding member to be slidably moved toward the first operating unit, the second base disposed on the surface of the base and provided with a pair of fixed hinges at both ends, respectively. plate; A pair of moving guide shafts whose ends are pivotally coupled to each of the fixed hinges; A pair of moving holes slidably fitted to each of the movement guide shafts and moved along the movement guide shafts; And a moving plate on which each said moving tool is respectively coupled to the rear surface and to which the second fixed housing is coupled.

Preferably, the second operation unit further includes a polishing rod guide tube extending from one end of the second connecting rotary tube and penetrating through the second fixed housing.

Preferably, the free end of the polishing rod guide tube is formed to enlarge the diameter toward the tip so that the polishing rod can be easily fitted.

Preferably, the base of the free end portion of the polishing rod guide tube further comprises a storage unit, the water storage unit is disposed on the base of the free end portion of the polishing rod guide tube, the first side on both sides Reservoir body with an upper opening is formed, respectively; It is coupled to one side of the reservoir body rotatably closes the open upper portion of the reservoir body, and includes a reservoir cover with an open bottom is formed on each side of the second entrance hole corresponding to the lower entrance hole, respectively; In the open inner space of the reservoir body and the reservoir cover, a free end portion of the abrasive guide tube is positioned to store the polishing liquid leaked to the outside.

Preferably, the first support unit comprises a pair of first support rollers; And a second hinge bracket on which both ends of the first support roller are rotatably axially coupled and installed on the base.

Preferably, one side of the base further includes a clamping unit for fixing the pipe is located so as not to move the first support unit.

Preferably, the clamping unit may include a clamping lever axially coupled to one side of the base so as to be movable in a seesaw motion; A clamping roller rotatably coupled to one end of the clamping lever to press a pipe mounted on the support roller of the first support unit; And a clamping cylinder installed at one side of the base such that the clamping shaft of the front end is forwardly or backwardly coupled to the other end of the clamping lever so as to move forward or backward.

Preferably, the polishing rod operating line is installed to be slidably movable in multiple stages in the base portion at a position opposite to the first operating unit, and the polishing rod may be passed through the polishing rod guide tube and introduced into the pipe. A third actuating unit; And a second support unit disposed on the base between the second operation unit and the third operation unit to support the polishing rod mounted to the third operation unit.

Preferably, the third operation unit comprises: a third base plate slidably disposed on the base; A third fixed housing fixedly disposed on the third base plate; A fixed tube positioned in the third fixed housing such that one end penetrates through one surface thereof, and an insertion groove of an abrasive rod is formed therein; And a first supply hose and a second supply hose connected to the fixed tube via the third fixed housing.

Preferably, the first moving unit is further included between the base and the base plate, the first moving unit is disposed in the longitudinal direction on the bottom surface of the base plate and the drive hole is formed inside the female screw hole; A screw rod rotatably coupled to the female screw hole of a male thread formed on an outer circumferential surface thereof; A plurality of second hinge brackets provided on a base located in an axial direction on an extension line of the driving rod such that both ends of the driving rod are rotatably coupled; And a third driving motor connected to transmit a driving force to one end of the driving rod protruding from the second hinge bracket, and as the driving rod is rotated by the driving force of the driving motor, the driving opening is operated to be straight. The third operating unit equipped with the polishing rod is repeatedly moved in the linear direction.

Preferably, the third base plate on both sides of the drive mechanism is provided with a guide hole through the guide hole, the guide rod of the guide hole is passed through the guide rods, both ends of which are respectively fixed to the base.

Preferably, a second moving unit is additionally included between the base and the first moving unit, and the second moving unit includes a top plate and the top plate on which the driving hole, the guide hole, and the driving hinge bracket are disposed on the surface, respectively. A moving housing made of a pair of side plates extending vertically at both ends of the pair to be slidably coupled to the base; A rack disposed in the longitudinal direction of the side surface of the base; A pinion rotatably axially coupled to an inner side surface of the side plate of the movable housing and gear coupled to the rack; And a third drive motor rotatably coupled to an outer surface of the side plate of the mobile housing and connected to the rack, and transmitting a driving force to the rack.

Preferably, driving rails are disposed in the longitudinal direction on both side walls of the base, and at least one driving roller is rotatably coupled to the inner side of the side plate of the movable housing.

Preferably, the support unit is a support rod which is installed standing on the base between the second unit and the third unit; And a second support guide roller rotatably coupled to the free end of the support rod.

Preferably, the support rod is provided with a protective cover to prevent contact with water.

Preferably, a reservoir is installed at one end of the base to collect and reuse the fluid supplied into the pipe.

Preferably, a plurality of supports are installed on both ends of the base, the free end of each of the supporting member is installed horizontally, the connecting member is blocked blocking the pipe operating line and the polishing rod operating line as a whole The member is provided to be able to slide open and close.

As described above, in the pipe internal polishing apparatus according to the preferred embodiment of the present invention, the pipe is rotatably mounted between the first unit and the second unit of the base surface, and the sliding of the third unit is mounted with the polishing rod of the base surface. As the movement moves, the inner rod of the pipe is polished by inserting a polishing rod into the pipe. Due to this structure, the pipe inner diameter polishing apparatus greatly improves the polishing effect of the pipe inner diameter, making it suitable for semiconductor tubes, food and beverage tubes, sanitary tubes, and the like.

The objects and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

1 is a block diagram illustrating a pipe internal polishing apparatus according to a preferred embodiment of the present invention as a whole. 2 is a front view of a pipe inner diameter polishing apparatus according to a preferred embodiment of the present invention.

1 and 2, the internal polishing apparatus according to a preferred embodiment of the present invention is a pipe operating line 100 and the polishing rod operating line 200 disposed on the base (B) and the upper surface of the base (B) It includes. 1 and 2, the pipe actuation line 100 is provided on the left side of the base B, while the polishing rod actuation line 200 is provided on the right side of the base B, but in this arrangement state. Can do the opposite.

One end of the base B is formed to be inclined low or high with respect to the other end. Preferably it is inclined by being rotated clockwise or counterclockwise about the center point of the base (B). More preferably, the base B is manufactured with one end inclined low relative to the other end at the time of initial manufacture. In particular, in order to store the polishing liquid used in the process of polishing the inner diameter of the pipe (P), the water storage unit 140 is disposed at the lower end of the base (B).

Pipe operation line 100 is to fix and turn the pipe (P), and includes a first operation unit 110, a second operation unit 120, a first support unit 150 and a clamping unit 160. . In particular, the second operation unit 120 is moved in the upper surface of the base (B) by the sliding member 130. The third operation unit 210 includes a first storage tank 219 for storing the polishing liquid and a second storage tank 219a for storing air.

Grinding rod operation line 200 is to fix and move the grinding rod (GM) to fit inside the pipe (P) mounted on the pipe operation line 100, the third operation unit 210, the second support unit 270, the first mobile unit 220 and the second mobile unit 240.

3 is a front view of the first operating unit of the pipe storage line shown in FIG.

Referring to FIG. 3, the pipe operation line 100 includes a first operation unit 110 disposed at one end of the base B to which a portion of the pipe P is coupled. The second operation unit 120 is installed on the base B so as to be slidable from the first operation unit 110 at predetermined intervals, and the other end of the pipe P is connected. At least one first supporting unit 150 is provided in the base B between the first operating unit 110 and the second operating unit 120.

4 is a view showing a state immediately before fitting a pipe to the first connecting rotary tube of the first operating unit shown in FIG. 5 is a view showing the front of FIG. FIG. 6 is a cross-sectional view of the bonded state along the line A-A shown in FIG.

4 to 6, the first operating unit 110 includes a first fixed housing 112 provided on the surface of the base B. As shown in FIG. The hollow first connection rotary tube 114 is rotatably penetrated in the longitudinal direction of the first fixed housing 112, and a part of the pipe P is fitted into one end thereof. The first connection pulley 118 is connected to one side of the first connection rotary tube 114 to transfer the driving force. The first drive motor 119 is rotatably installed with a first drive shaft 119a to transmit a driving force to the first connection pulley 118.

A male thread is formed at an outer diameter of the free end of the first connecting rotary tube 114, and a first fastener 116 having a female thread formed at an inner diameter is screwed thereto. One end of the pipe P is fitted into the inner diameter of the first connecting rotary tube 114, and the first fastener 116 is screwed into the outer diameter of the first connecting rotary tube 114 at the portion where the pipe P is fitted. Tighten by tightening. To this end, a plurality of first tightening grooves 114a are formed in the longitudinal direction at the free end of the first connection rotary tube 114 at the portion at which the first fastener 116 is coupled, and the first tightening grooves 114a. Inner inner wall of the first expansion groove 114b is formed extending.

7 is an enlarged perspective view and main parts of the second operation unit and the storage unit shown in FIG. FIG. 8 is a front view of FIG. 7, in which FIG. 8A is before the pipe is coupled to the second connecting rotary tube, and FIG. 8B is the state in which the pipe is coupled to the second connecting rotary tube. 9 is a view showing FIG. 7 from another direction.

7 to 9, the second operation unit 120 includes a second fixed housing 122 provided on the surface of the base B. As shown in FIG. The hollow second connection rotary tube 124 is rotatably penetrated in the longitudinal direction of the second fixed housing 122 and one end of the pipe P is fitted into one end thereof. The second connection pulley 126 is connected to one side of the second connection rotary tube 124 to transfer the driving force. The second drive motor 128 is rotatably connected to the second drive shaft 128a to the second connection pulley 126 to output a driving force.

The second operating unit 120 further includes a sliding member 130 to be slidably moved toward the first operating unit 110. The second base plate 132 is disposed on the upper surface of the base B and is provided with a pair of fixed hinges 133 at both ends thereof. The pair of movement guide shafts 134 are axially coupled to each of the fixed hinges 133 so as to be rotatable. The pair of moving holes 136 are slidably fitted to the respective moving guide shafts 134 and moved along the moving guide shafts 134. Each of the moving holes 136 is coupled to the bottom of the moving plate 138, and the second fixed housing 122 is coupled to the top of the moving plate 138. The second fixed housing 122 includes a first operating hose 122a and a second operating hose 122b provided with hydraulic pressure. The supply of hydraulic pressure and the like by these first actuating hoses 122a and the second actuating hoses 122b has a moving direction in the opposite direction to each other.

A male thread is formed at an outer diameter of the free end of the second connecting rotary tube 124, and a second fastener 125 having a female thread formed at an inner diameter is screwed thereto. The other end of the pipe P is fitted into the inner diameter of the second connecting rotary tube 124, and the second fastener 125 is screwed into the outer diameter of the second connecting rotary tube 124 at the portion where the pipe P is fitted. Tighten by tightening. To this end, a plurality of second tightening grooves 124a are formed in the longitudinal direction at the free end of the second connection rotary tube 124 of the portion where the second fastener 125 is coupled, and the second tightening grooves 124a are provided. Inner inner wall of the second expansion groove 124b is formed extending.

The second operating unit 120 further includes an abrasive rod guide tube 139 extending from one end of the second connecting rotary tube 124 and penetrating through the second fixed housing 122. The free end of the polishing rod guide tube 139 is formed to expand in diameter toward the tip so that the polishing rod GM can be easily fitted.

15 is a view showing the pipe operation line shown in FIG. 2 from the direction of the water storage unit.

As shown therein, the storage unit 140 is further included in the base B of the free end portion of the polishing rod guide tube 139, and the storage unit 140 is the free end of the polishing rod guide tube 139. It is disposed on the base (B) of the site, and includes a reservoir body 142, the upper portion of which the first entrance hole (142a) is formed on each side. Reservoir cover 144 is rotatably coupled to one side of the reservoir body 142 to close the open upper portion of the reservoir body 142, the second entry and exit corresponding to the first access hole (142a) on both sides The balls 144a are each formed, and the lower part is opened. In the open inner space of the reservoir body 142 and the reservoir cover 144, a free end portion of the abrasive guide tube 139 is positioned to store the polishing liquid leaked to the outside.

FIG. 10 is a view showing the pipe storage line shown in FIG. 2 from the rear. FIG. 11 is a perspective view of FIG. 10 shown in another direction. 12 is a partial cross-sectional view showing the first support unit in FIG. 13 is a side view of FIG. 12. FIG. 14 is an installation state diagram of the first support unit and the clamping unit in FIG. 11.

10 to 14, the first support unit 150 includes a pair of first support rollers 152. The second hinge bracket 226 is axially coupled to both ends of the first support roller 152 so as to be rotatable, and is installed on the base B. In addition, the second hinge bracket 226 is installed on the upper plate 156 and the lower plate 156b may be coupled to the bottom plate 156 by a plurality of gap retaining rods 156a and nuts. . The bottom plate 1156b may also be coupled to the bottom plate 158a by a plurality of vertical plates 158 thereunder.

One side of the base (B) is further included a clamping unit 160 for pressing the pipe (P) located in the first support unit 150.

The clamping unit 160 includes a clamping lever 162 axially coupled to one side of the base B so as to be seesawed. The clamping roller 164 is rotatably axially coupled to one end of the clamping lever 162 and presses the pipe P mounted on the first support roller 152 of the first support unit 150. The clamping cylinder 166 is installed at one side of the base B so that the clamping shaft 166a at the front end of the clamping lever 162 can be forward or backward coupled to the other end of the clamping lever 162 so that the clamping lever 162 can seesaw. .

FIG. 16 is a perspective view of the polishing rod operating line shown in FIG. 2, and as shown therein, the polishing rod operating line 200 slides in multiple stages at a portion of the base B at a position opposite to the first operating unit 110. It includes a third operating unit 210 is installed to be movable. In addition, the third operation unit 210 allows the polishing rod GM to pass through the polishing rod guide tube 139 to be introduced into the pipe P. The second support unit 270, which will be described later with reference to FIG. 20, is disposed on the base B between the second operation unit 120 and the third operation unit 210 and mounted on the third operation unit 210. Support the GM.

17 is an enlarged perspective view of the third operating unit shown in FIG. 16. 18 is a front view of FIG. 16. 19 is a rear view of FIG. 16. 20 is a view from above of FIG. 16. 21 is a perspective view of FIG. 19 viewed from another direction. 22 is a view showing an installation state of the second mobile unit shown in FIG. FIG. 23 is an enlarged perspective view illustrating main parts of the driving rail and the driving roller shown in FIG. 22. 24 is a view showing a coupling relationship between the third operating unit and the first mobile unit shown in FIG.

17 to 24, the third operation unit 210 includes a third base plate 212 that is slidably disposed on the base B. The third fixed housing 214 is fixedly disposed on the third base plate 212. The fixed tube 216 is positioned in the third fixed housing 214 so that one end penetrates through one surface thereof, and a hollow of the polishing rod GM is formed therein. The first supply hose 218 and the second supply hose 218a are connected to the fixed pipe 216 via the third fixed housing 214. As shown in FIG. 1, the first supply hose 218 is connected to the first storage tank 219, and the second supply hose 218a is connected to the second storage tank 219a. It is preferable that the polishing liquid is stored in the first storage tank 219 and air is stored in the second storage tank 219a.

The first moving unit 220 is further included between the base B and the third base plate 212. The drive port 222 of the first moving unit 220 is disposed in the longitudinal direction on the bottom surface of the third base plate 212 and the internal thread hole 222a is formed therein. The driving rod 224 is rotatably screwed to the female threaded hole 222a of the driving tool 222, and a male thread is formed on an outer circumferential surface thereof. The plurality of second hinge brackets 226 are provided on the base B positioned in the axial direction of the extension of the driving rod 224 so that both ends of the driving rod 224 are axially rotatably coupled. The third driving motor 228 is connected to transmit a driving force to one end of the driving rod 224 protruding from the second hinge bracket 226. As the driving rod 224 is rotated by the driving force of the third driving motor 228, the driving tool 222 is operated straight so that the third operating unit 210 mounted with the polishing rod GM moves in a linear direction. do.

Guide holes 230 through which guide holes 232a penetrate are provided in the third base plate 212 on both sides of the driving hole 222, and both ends of the guide holes 232a of the guide hole 230 are respectively provided in the base. The fixed guide rod 234 is passed through.

A second moving unit 240 is additionally included between the base B and the first moving unit 220, and the second moving unit 240 includes a drive hole 222, a guide hole 230, and a second hinge. A mobile housing (226) having a top plate (242a) disposed on the surface and a pair of side plates (242b extending vertically to both ends of the top plate (b), which are slidably coupled to the base (B). 242. The rack 244 is disposed in the longitudinal direction of the side of the base B. The pinion 246 is axially rotatably coupled to the inner side of the side plate 242b of the moving housing 242 and rack 244. The fourth drive motor 248 is rotatably coupled to the outer surface of the side plate 242b of the mobile housing 242 and connected to the rack 244, and a driving force to the rack 244. To pass.

In particular, the rotational force of the fourth driving motor 248 is transmitted to the pinion 246 by the first driving pulley 248a, the second driving pulley 248b, the first driving belt 248c and the second driving belt 248d. Delivered. That is, the first drive pulley 248a and the second drive pulley 248b are rotatably coupled to the side plate 242b of the movable housing 242. The driving shaft 248e of the fourth driving motor 248 is connected to the first driving pulley 248a by the first driving belt 248c, and the first driving pulley 248a and the second driving pulley 248b are made of It is connected to each other by two driving belts (248d).

The drive rail 250 is disposed in the longitudinal direction on both side walls of the base B, and at least one of the first drive roller 252 and the second drive roller 252a inside the side plate 242b of the moving housing 242. ) Is rotatably axially coupled. The first drive roller 252 is in contact with the drive rail 250 to apply a force in the vertical direction, the second drive roller 252a is in contact with the drive rail 250 to apply a force in the horizontal direction. . That is, the first driving roller 252 is in contact with the upper surface of the driving rail 250, the second driving roller 252a is in contact with the side of the driving rail 250.

The second support unit 270 includes a support rod 272 which is installed standing on the base B between the second operation unit 120 and the third operation unit 210. The second support guide roller 274 is rotatably coupled to the free end of the support rod 272. The supporting rod 272 is provided with a protective cover 276 made of a material such as vinyl to prevent contact with water.

A reservoir 260 is installed at one end of the base B to collect and reuse the fluid supplied into the pipe P. That is, the reservoir 260 is provided in the base B of the low portion.

Figure 27 is a perspective view of the installation state of the protective cover of the inner diameter polishing apparatus according to a preferred embodiment of the present invention. 28 is an enlarged perspective view illustrating main parts of FIG. 27.

Referring to FIGS. 27 and 28, a plurality of supports 280 are installed at both ends of the base B, and a connecting member such as a connecting line 282 is horizontally installed at the free ends of each support 280. The connecting line 282 is provided with a blocking member such as a blocking film 284 made of a material such as a vinyl covering the pipe operating line 100 and the polishing rod operating line 200 as a whole. The blocking film 284 is installed on the connecting line 282 to be slidably moved by a plurality of connecting rings 286.

With reference to the accompanying drawings will be described the operation of the inner diameter polishing apparatus according to a preferred embodiment of the present invention having the structure as described above.

[Pipe operation line (100)]

3 to 5, first, one end of the pipe P for grinding the inner diameter is inserted into the first connection rotary tube 114 of the first operation unit 110. Subsequently, the first fastener 116 is screwed to the free end of the first connecting rotary tube 114 to rotate. Then, the interval between the first tightening grooves 114a formed in the first connection rotary tube 114 is narrowed to the state in which the outer diameter of the pipe P is pressed. At this time, when the first fastener 116 moves to the portion of the first expansion groove 114b, one end of the pipe P is fixed without moving in the first connection rotary tube 114.

Next, the intermediate middle of the pipe (P) having one end fixed to the second operation unit 120 is in a state supported by the first support unit 150 disposed on the upper surface of the base (B). In more detail, the first hinge bracket 154 is vertically erected on the upper surface of the base B, and the first support roller 152 of the first support unit 150 is formed of the first hinge bracket 154. It is installed on the free end so as to rotate horizontally. The first support roller 152 is preferably formed in a shape corresponding to the outer diameter of the pipe (P).

In this case, referring to FIG. 7, the other end of the pipe P is spaced apart from the second connecting rotary tube 124 of the second operation unit 120 at a predetermined interval. In this state, the controller (not shown) is operated to operate the sliding member 130 by an operation means such as pneumatic. That is, when pneumatic or the like is supplied to the second fixed housing 122 through the first operating hose 122a, the second operating unit 120 is in the other direction of the pipe P, that is, in the left direction when viewed in FIG. Move. For this reason, the other end of the pipe P is fitted into the second connecting rotary tube 124. At this time, when the second fastener 125 is rotated in the clockwise or counterclockwise direction by the operator, the intervals of the second fastening grooves 124a formed in the second connection rotary tube 124 are narrowed. For this reason, the pipe P is firmly fixed so that it may not move in the inner diameter of the 2nd connection rotary pipe 124. FIG.

In this state, when the first driving motor 119 and the second driving motor 128 are operated simultaneously to generate rotational force, the rotational force of the first driving motor 119 is first fixed by the first connection pulley 118. The first connecting rotary tube 114 is rotated in the housing 112. The rotational force of the second drive motor 128 rotates the second connection rotary tube 124 in the second fixed housing 122 by the second connection pulley 126. Accordingly, the pipe P is rotatable in a state where both ends are fixed to the first connecting rotary tube 114 and the second connecting rotary tube 124.

10 to 15, the pipe P is supported by the plurality of first supporting units 150. That is, the pair of first support rollers 152 are rotatably coupled to the free end of the first hinge bracket 154 installed on the base B in a set. The pipe P is positioned between these first support rollers 152 and rotated together when the pipe P is rotated.

In addition, swinging may occur because the length of the pipe P is relatively long in the rotation operation. For this reason, the clamping unit 160 which presses the pipe P from the upward direction is provided. The clamping unit 160 is rotated about the portion of the clamping lever 162 hinged to the base (B) by the straight movement of the clamping cylinder 166. In other words, the clamping hinges 168 formed on the base B and the clamping lever 162 are coupled to each other by the clamping hinge shaft 169 in a state in which they are coupled to each other. The rotation operation of the clamping lever 162 is performed by clamping roller 164 axially coupled to one end of the clamping lever 162 to the pipe P on the first support roller 152 of the first support unit 150 from the top. Will be pressed. This is also rotated together in the rotational operation of the pipe P.

For reference, the first driving motor 119 of the first operating unit 110 and the second driving motor 128 of the second operating unit 120 are operated simultaneously as described above, or the first driving motor as necessary. Only one of the 119 or the second driving motor 128 may be operated.

[Polishing rod operation line (200)]

Meanwhile, referring back to FIGS. 16 to 24, the polishing rod GM is fitted into and fixed to the fixing tube 216 of the third operation unit 210. In more detail, one end of the polishing rod GM is provided with the insertion portion GM2 by the coupling flange GM1. A plurality of coupling holes GM3 are formed in the coupling flange GM1. Correspondingly, one end surface of the fixing pipe 216 is a state in which the engaging protrusion 216a is formed at a position corresponding to the engaging hole GM3.

In this state, the insertion part GM2 of the grinding | polishing rod GM is fitted in the inside of the fixed pipe 216. As shown in FIG. At this time, the coupling protrusions 216a of the fixed tube 216 are fitted into each coupling hole GM3 of the coupling flange GM1 to protrude. A fastening means such as a nut is fitted into the protruding engagement protrusion 216a to be fixed.

In addition, the polishing rod GM having one end coupled to the fixed tube 216 is supported by the second support unit 270. That is, in the state in which the supporting rod 272 of the second supporting unit 270 is erected on the upper surface of the base B, the second supporting guide roller 274 rotatably coupled to the upper end of the supporting rod 272. Is supported by.

25 is a view showing a movement state of the polishing rod according to the operation of the first mobile unit shown in Figure 16, Figure 25a is before the movement of the first operating unit, Figure 25b is after the movement of the first mobile unit 25C is after the movement of the second mobile unit.

As shown in the drawing, the third operating unit 210 is moved by a predetermined distance toward the direction of the polishing rod guide tube 139 of the second operating unit 120 by the operation of the first moving unit 220. That is, when the third driving motor 228 of the first mobile unit 220 is operated to generate a rotational force, the driving rod 224 installed in the second hinge bracket 226 is rotated by the rotational force. At this time, the driving rod 224 is screwed to the female threaded hole 222a of the driving hole 222, the rotation action of the driving rod 224, the driving hole 222 is a second along the guide rod 234 Move toward the direction of the operating unit 120. Here, the operation of the third drive motor 228 is set so that the drive port 222 of the guide rod 234 can be moved only by the length of the guide rod 234.

As a result, the third operating unit 210 including the third base plate 212 which has been coupled to the drive opening 222 is opened in the second connecting rotary tube 124 of the second operating unit 120. Proceed towards the end. Accordingly, the free end of the polishing rod GM mounted on the fixed tube 216 of the third operating unit 210 is located close to the second connecting rotary tube 124 of the second operating unit 120.

In order to insert the polishing rod GM into the inner diameter of the pipe P, when the fourth driving motor 248 of the second moving unit 240 is driven to generate rotational force, the rotational force of the fourth driving motor 248 is set to zero. The first driving belt 248c is transmitted to the first driving pulley 248a, and the transmitted rotational force is again transmitted to the second driving pulley 248b by the second driving belt 248d. As a result, the pinion 246 integrally coupled with the side plate 242b of the moving housing 242 is also rotated together. The rotational force of this pinion 246 is converted into a straight motion along the rack 244. Accordingly, the movable housing 242, that is, the third operating unit 210 is moved in close proximity to the second operating unit 120. By doing so, the polishing rod GM mounted on the third operation unit 210 is deeply fitted into the inner diameter of the pipe P mounted between the first operation unit 110 and the second operation unit 120.

In this state, as the pipe P is rotated, the polishing operation by the polishing rod GM is performed. At this time, the polishing liquid is supplied into the polishing rod GM through the first supply hose 218 of the third fixed housing 214 of the third operation unit 210, while the second supply hose 218a is supplied. Air pressure is injected into the inside of the polishing rod GM to inflate the surface of the polishing rod GM. That is, the inner diameter of the pipe (P) is in contact with the inner diameter of the pipe (P) while the polishing means (not shown) on the surface of the polishing rod (GM) is inflated, and the polishing between the pipe (P) and the polishing rod (GM) This is done while supplying the liquid.

On the other hand, the water storage unit 140 is installed on the upper surface of the base (B) of the free end portion of the second connection rotary tube 124 of the second operation unit 120, the upper portion of the second connection rotary tube 124 and It is to be wrapped by the reservoir body 142 and the reservoir cover 144 of the reservoir unit 140 in the lower portion. At this time, the first entry hole 142a of the reservoir body 142 and the second entry hole 144a of the reservoir cover 144 form a substantially circular shape, and the polishing rod GM enters and exits the circular portion thereof. In this state, it is possible to prevent the polishing liquid flowing in the polishing rod GM from leaking to the outside and damaging the operator or the mechanical equipment.

By this process, after the internal diameter of the pipe P is polished, the polishing liquid used for the polishing operation is drained toward the lower place because the base B itself is inclined in one direction. At this time, since the reservoir 260 is located at a low position of the base B, the polishing liquid flows into the reservoir 260 and is stored. In particular, the reservoir 260 is in a state of being connected to the first storage tank 219 in which the polishing liquid is stored. For this reason, the polishing liquid can be re-supplied from the reservoir 260 into the inside of the first storage tank 219 by the pressure of a pump, not shown, and used again.

Referring to FIGS. 26 and 27 again, as described above, in the process of polishing the inner diameter of the pipe P using the polishing rod GM, the polishing liquid flowing through the inside of the polishing rod GM leaks to the outside. There is a risk of damaging the operator or mechanical equipment. In order to prevent this, the support 280 is erected on both ends of the base (B), respectively, between the support 280 is connected by a connecting member such as a connecting line 282. By using a plurality of connecting rings 286 in the connecting line 282, a blocking member such as a blocking film 284 is provided to be capable of sliding opening and closing. The barrier layer 284 is in a state in which the pipe operation line 100 and the polishing rod operation line 200 are opened when the pipe P and the polishing rod GM are mounted or removed before the polishing operation. The state is entirely covered to perform the polishing operation. At this time, the movement of the blocking film 284 is performed by moving along the connecting line 282 by a plurality of connecting rings (286).

As mentioned above, according to the pipe internal-polishing apparatus according to the embodiment of the present invention, the base is bent to fix and / or change the base inclined, and the pipe operation line and the polishing rod operation line on the base. After the installation, it was configured to automatically insert the polishing rod into the inner diameter of the pipe to automatically process the inner diameter of the pipe. At this time, the air pressure is injected into the inside of the polishing rod so that the surface of the polishing rod, ie, the abrasive, can elastically act. Therefore, when the inner diameter polishing apparatus of the present invention is used, the inner diameter of the pipe can be polished much more effectively, thereby meeting the manufacturing standards of semiconductor tubes and the like.

In addition, the pipe internal-polishing apparatus according to the present invention is an invention in which the polishing operation of the pipe is greatly improved because only the installation work of the pipe and the polishing rod is performed manually, and the entire polishing operation is performed completely automatically.

In the above, the present invention has been described in detail with reference to the above-described embodiments, but the present invention is not limited thereto, and those skilled in the art may change or improve the technology within the scope of ordinary knowledge.

Claims (22)

Pipe internal polishing device, A base B whose one end can be converted into an inclined phase with respect to the other end; A pipe operation line (100) installed at one side of the base (B) to fix and rotate the pipe (P); And It is installed on the other side of the base (B) to fix and move the polishing rod (GM) to fit inside the pipe (P) mounted on the pipe operation line 100, the air pressure inside the polishing rod (GM) The injection rod comprises a polishing rod operating line 200 is stretched and the surface of the polishing rod (GM), The pipe operation line 100 A first operating unit (110) disposed at one end of the base (B) to which one end of the pipe (P) is coupled; A second operating unit (120) installed on the base (B) to be slidably moved from the first operating unit (110) at predetermined intervals and to which the other end of the pipe (P) is connected; And At least one first supporting unit 150 provided in the base (B) between the first operating unit 110 and the second operating unit 120 Pipe internal polishing device comprising a. delete The method of claim 1, wherein the first operating unit 110 A first fixed housing 112 provided on the surface of the base B; A hollow first connection rotary tube 114 rotatably penetrating in the longitudinal direction of the first fixed housing 112 and having one end fitted with one end of the pipe P; A first connection pulley 118 connected to one side of the first connection rotary tube 114 to transmit a driving force; And The first drive motor 119 is rotatably installed to the first drive shaft 119a to transmit a driving force to the first connection pulley 118. Pipe internal polishing device comprising a. According to claim 3, wherein the first fastener 116 is screwed to the outer diameter of the free end of the first connecting rotary tube 114, the pipe P is tightened to the inner diameter of the first connecting rotary tube 114. A plurality of first tightening grooves 114a are formed at a free end of the first connection rotary tube 114 at a portion at which the first fastener 116 is coupled, and the first fastening grooves are formed in a lengthwise direction. Inside inner wall of the (114a) pipe inner diameter polishing apparatus, characterized in that the first expansion groove (114b) is formed extending. The method of claim 1, wherein the second operation unit 120 A second fixed housing 122 provided on the surface of the base B; A hollow second connection rotary tube 124 rotatably penetrating in the longitudinal direction of the second fixed housing 122 and having one end fitted with one end of the pipe P; A second connection pulley 118 connected to one side of the second connection rotary tube 124 to transmit a driving force; And The second driving motor 128 is rotatably connected to the second connection pulley 126 to output a driving force. Pipe internal polishing device comprising a. The method of claim 5, wherein the second operation unit 120 further includes a sliding member 130 so as to slide toward the first operation unit 110, the sliding member 130 is A second base plate 132 disposed on a surface of the base B and provided with a pair of fixed hinges 133 at both ends thereof; A pair of movement guide shafts 134 rotatably axially coupled to each of the fixed hinges 133; A pair of moving holes 136 slidably fitted to each of the movement guide shafts 134 and moved along the movement guide shafts 134; And Moving plate 138 to which each of the moving holes 136 is coupled to one surface, respectively, and the second fixed housing 122 is coupled to the other surface. Pipe internal polishing device comprising a. According to claim 5, The second operation unit 120 is added to the polishing rod guide tube 139 extending from one end of the second connecting rotary tube 124 and penetrates into the second fixed housing 122 Pipe internal polishing device, characterized in that included. The inner diameter polishing apparatus according to claim 7, wherein the free end of the polishing rod guide tube (139) is enlarged toward the tip thereof so that the polishing rod (GM) can be easily fitted. According to claim 8, wherein the base (B) of the free end portion of the polishing rod guide tube 139 further includes a water storage unit 140, the water storage unit 140 A reservoir body 142 which is disposed at the base B of the free end portion of the polishing rod guide tube 139 and has an upper portion at which first entrance holes 142a are formed at both sides thereof; It is rotatably coupled to the open end of the reservoir body 142 to close the open upper portion of the reservoir body 142, the second entrance hole corresponding to the first entrance hole (142a) on both sides ( 144a includes a reservoir cover 144 having an open bottom, respectively, In the inner space of the reservoir body 142 and the reservoir cover, the free end portion of the abrasive guide tube 139 is located inside the pipe polishing apparatus, characterized in that to store the polishing liquid leaked to the outside. The method of claim 1, wherein the first support unit 150 is A pair of first supporting rollers 152; And Both hinge brackets 226 are rotatably coupled to both ends of each of the first supporting rollers 152, and are installed on the base B. Pipe internal polishing device comprising a. According to claim 1, One side of the base (B) is characterized in that it further comprises a clamping unit 160 for fixing the pipe (P) located in the first support unit 150 so as not to move Pipe internal polishing device. The method of claim 11, wherein the clamping unit 160 A clamping lever 162 axially coupled to one side of the base B to enable a seesaw movement; A clamping roller 164 that is rotatably coupled to one end of the clamping lever 162 and presses a pipe P mounted on the support roller 152 of the first support unit 150; And The clamping cylinder 166a of the front end is coupled to the other end of the clamping lever 162 so that the clamping lever 162 can move forward or backward so that the clamping lever 162 can be seesawed. 166) Pipe internal polishing device comprising a. The method of claim 1, wherein the polishing rod operating line 200 The base (B) in a position opposite to the first operating unit 110 is installed to be slidably moved in multiple stages and the polishing rod (GM) is passed through the polishing rod guide tube 139 to the pipe (P) Third operating unit 210 to be fitted into the interior of; And A second support unit disposed on the base B between the second operation unit 120 and the third operation unit 210 to support the polishing rod GM mounted on the third operation unit 210. (270) Pipe internal polishing device comprising a. The method of claim 13, wherein the third operating unit 210 A third base plate 212 disposed slidably on the base B; A third fixed housing 214 fixedly disposed on the third base plate 212; A fixing tube 216 positioned in the third fixing housing 214 so that one end thereof is exposed through one surface thereof, and an insertion groove of the polishing rod GM is formed therein; And First supply hose 218 and second supply hose 218a connected to the fixed pipe 216 via the third fixed housing 214. Pipe internal polishing device comprising a. The method of claim 14, wherein the base (B) and the base plate 212 is further included between the first mobile unit 220, the first mobile unit 220 is A drive hole 222 disposed in one side of the base plate 212 in a length direction and having an internal thread hole 222a formed therein; A drive rod 224 that is rotatably screwed to the female threaded hole 222a of the drive hole 222 and a male thread is formed on an outer circumferential surface thereof; A plurality of second hinge brackets 226 provided on the base B in the axial direction of the extension line of the driving rod 224 such that both ends of the driving rod 224 are rotatably coupled; And a third driving motor 228 connected to transmit a driving force to one end of the driving rod 224 protruding from the second hinge bracket 226, As the driving rod 224 is rotated by the driving force of the driving motor 228, the driving tool 222 is operated straight so that the third operation unit 210 in which the polishing rod GM is mounted is in a linear direction. Pipe internal polishing device, characterized in that moved to. The guide base 230 through which the guide hole 232a penetrates is provided in the third base plate 212 on both sides of the driving hole 222, and the guide hole of the guide hole 230. (232a) is an internal grinding apparatus for pipes, characterized in that both ends of the guide rod (GM) fixed to the base (B) is passed. The method of claim 14, wherein the base (B) and the first mobile unit 220, the second mobile unit 240 is further included, the second mobile unit 240 is A pair of side plates which are bent vertically by extending to both ends of the upper plate 242a and the upper plate 242a on which the driving holes 222, the guide holes 230, and the second hinge brackets 226 are disposed on the surface, respectively ( 242b, a moving housing 242 which is slidably coupled to the base B; A rack 244 disposed in the longitudinal direction of the side surface of the base B; A pinion 246 rotatably coupled to an inner surface of the side plate 242b of the movable housing 242 and gear-coupled with the rack 244; And A third drive motor 228 is rotatably coupled to the outer surface of the side plate 242b of the mobile housing 242 and connected to the rack 244, and transmits a driving force to the rack. Pipe internal polishing device comprising a. 18. The method of claim 17, wherein the drive rails 250 are disposed in the longitudinal direction on both sidewalls of the base B, and at least one first drive roller 252 inside the side plate 242b of the movable housing 242. ) And the second driving roller 252a are rotatably coupled to each other, and the first driving roller 252 is contacted to apply a force in a vertical direction with respect to the driving rail, and the second driving roller 252a is Pipe internal polishing apparatus characterized in that the contact with the drive rail 250 to apply a force in the horizontal direction. The method of claim 13, wherein the second support unit 270 is A support rod 272 installed on the base B between the second operation unit 120 and the third operation unit 210; And Second support guide roller 274 is axially rotatably coupled to the free end of the support bar (272) Pipe internal polishing device comprising a. 20. The apparatus of claim 19, wherein the support rod is provided with a protective cover to prevent contact with water. The internal polishing apparatus of claim 1, wherein a reservoir (260) is installed at one end of the base (B) to collect and reuse the polishing liquid supplied into the pipe (P). According to claim 1, A plurality of support 280 is installed on both ends of the base (B), the connection member is horizontally installed on the free end of each of the support 280, the connection member is the pipe operation Pipe line internal polishing device, characterized in that the line 100 and the blocking member surrounding the polishing rod operating line 200 is provided to be sliding open and close.

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