KR200424874Y1 - Film transfer guide for interior-finishing device - Google Patents

Abstract

The present invention relates to a film transfer guide provided in the inner surface finishing apparatus for automatically polishing the inner surface of the workpiece to guide the transfer of the film abrasive.

The film transfer guide of the inner surface finishing apparatus according to the present invention is formed in the longitudinal direction, the supply groove 300 for guiding the film abrasive 202 is guided to the tip; A recovery groove 302 formed in the longitudinal direction and configured to guide the film abrasive 202 transferred to the tip through the supply groove 300 to be recovered; An internal flow passage 340 formed through the inside to guide the cutting oil; A key surface 320 formed in a plane on an outer circumference thereof and in contact with one surface of the fixing key 226; A guide surface 312 formed at the front end and gradually decreasing in outer diameter toward the end; It consists of a header end portion 310 and the like extending from one end of the guide surface 312. According to the film transfer guide of the inner surface finishing apparatus according to the present invention, there is an advantage that the inner surface polishing of the workpiece can be more precise.

Polishing, Interior, Guide, Film Polishing

Description

Film transfer guide for interior finishing equipment

1 is a perspective view showing a state of use of the polishing machine according to the prior art.

Figure 2 is a perspective view of the inner finishing device is adopted a preferred embodiment of the film transfer guide according to the present invention.

Figure 3 is a perspective view of the inner surface polishing machine is adopted a preferred embodiment of the film transfer guide according to the present invention.

Figure 4 is a perspective view of a preferred embodiment of the film transfer guide according to the present invention.

5 is a front view of an embodiment of the present invention.

6 is a rear view of the present invention embodiment.

7 is a front sectional view of an embodiment of the present invention.

Figure 8 is an internal configuration diagram of the swinging means constituting the inner finishing device that the embodiment of the present invention is employed.

Figure 9 is a block diagram schematically showing the operating state of the inner finishing apparatus adopted embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100. Supporting die 102. Adjusting screw

110. Left and right transport means 112. Right and left guide

114. Left and right rail 116. Left and right screws

118. Left and Right Motors 120. Moving Dies

130. Means of forward and backward transport 132. Back and forth rail

134. Front and rear screw 140. Body base

200. Internal polishing machine 202. Film polishing material

204. Feed roller 206. Recovery roller

208,208 '. Support Rollers 210. Film Transfer Guide

220.Plunger 222.Body

224., 224 '. Guide Roller 226. Sticky Key

230. Swinging means 240. Tension adjusting means

250. Stop sensor 260. Guide tube

270. Film transport means 280. Work support means

290. Operation Panel 300. Supply Groove

302. Recovery groove 310. Header end

312.Information surface 314. Outlet

320. If it is 322. Inlet

330. Contact members 340. Internal flow path

The present invention relates to a polishing machine, and more particularly to a film transfer guide provided in the inner surface finishing apparatus for automatically polishing the inner surface of the workpiece to guide the transfer of the film abrasive.

In general, polishing means a finishing method of improving the quality of a workpiece by grinding and polishing the surface of the workpiece using granular or powdery materials having high hardness.

In general, a conventional grinding operation is performed by using a grindstone, the processing method using the grindstone particles collectively referred to as grindstone grain processing.

That is, the conventional grinding machine has a configuration in which a circular grindstone 20 is mounted and rotated on a rotation shaft 10 of a motor (not shown), as shown in FIG. 1. Therefore, in the state in which the user grips the work 30 directly by hand, the work 30 is brought into contact with the circumferential surface of the grindstone 20 and polished.

As such, when the user directly touches the workpiece 30 to the abrasive grindstone 20 to perform polishing, it is difficult to precisely grind the work and there is a problem that a safety accident occurs.

In addition, in the prior art as described above, the outer surface of the workpiece 30 can be polished, but the inner surface is difficult to polish. That is, there is a problem that the operation is difficult because there is no appropriate guide for internal polishing.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, to provide a film transfer guide of the inner surface finishing apparatus to effectively enable the inner surface polishing of the workpiece.

The film transfer guide of the inner finishing device according to the present invention for achieving the above object is formed in the longitudinal direction, the supply groove for guiding the film polishing material is guided to the tip; A recovery groove which is formed in a longitudinal direction and guides the film abrasive material transferred to the tip through the supply groove to be recovered; An internal flow passage formed therein to guide the cutting oil; It is formed in a plane on the outer circumferential surface, the key back and in contact with one surface of the fixed key; A guide surface formed at the tip portion and gradually decreasing in outer diameter toward the end portion; And a header end portion extending from one end of the guide surface.

The guide surface is characterized in that the discharge port for discharging the cutting oil guided through the inner passage is formed.

The key surface is characterized in that the inlet for guiding the cutting oil flowing into the inner flow path is formed.

The guide surface is characterized in that the contact member for protruding to the outside to the film polishing material is in close contact with the inner surface of the workpiece.

The contact member is characterized in that made of urethane (urethane).

According to the film transfer guide of the inner surface finishing apparatus according to the present invention having such a configuration, there is an advantage that the inner surface processing of the workpiece can be effectively performed.

Hereinafter, preferred embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

2 and 3 are perspective views of the inner finishing device and the inner polishing machine employing the embodiment of the present invention, respectively.

As shown in these figures, the support die 100 is provided in the lower portion of the inner surface finishing apparatus according to the present invention. The support die 100 is formed to a predetermined height to serve to support a plurality of parts including the inner polishing machine 200 to be described below, the lower end of the support die 100 is adjustable adjustment screw 102 is provided.

The support die 100 is formed to have a substantially rectangular shape, and the die guide 104 is formed at a predetermined height along the upper edge of the support die 100. The die guide 104 serves to prevent leakage of by-products, such as cutting oil, to be described below.

The upper surface of the support die 100 is provided with a left and right conveying means 110 for moving the inner surface polishing machine 200 to be described later. The left and right conveying means 110 is composed of a left and right guide 112, a left and right rail 114, and a left and right screw 116 and the left and right motor 118.

The left and right guides 112 are provided on a pair of upper surfaces of the support die 100. That is, the left and right guides 112 are formed at left and right sides of the upper and rear ends of the support die 100 to guide left and right movements of the inner polishing machine 200 to be described below.

The left and right rails 114 are provided on the upper surface of the left and right guides 112. The left and right rails 114 are formed to have the same length as the left and right guides 112 and directly contact the bottom surface of the moving die 120 supporting the inner surface polishing machine 200 to be described below. Therefore, when the moving die 120 slides from side to side in contact with the left and right rails 114, the inner surface polishing machine 200 to be described below is to move left and right.

The left and right screws 116 are provided to the left and right between the pair of left and right guides 112. The left and right screws 116 have a relative motion with left and right nuts (not shown) formed in the moving die 120 to be described below to force the left and right movement of the moving die 120 and the inner polishing machine 200. Accordingly, male screws are formed on the outer surface of the left and right screws 116.

The left and right motors 118 are installed at right ends of the left and right screws 116. The left and right motors 118 provide rotational power to the left and right screws 116. Therefore, when the left and right motor 118 is rotated by the power applied from the outside, such rotational power is transmitted to the left and right screws 116 to rotate the left and right screws 116.

The moving die 120 is installed above the support die 100. That is, the left and right guides 112 and the left and right screws 116 are provided with a rectangular moving die 120, the lower half and the first half of the bottom of the moving die 120 and the left and right rails 114, respectively; It is in contact with the left and right screws 116.

On the upper surface of the moving die 120 is provided with a front and rear transfer means 130 for forcing the front and rear movement of the internal polishing machine 200 to be described below. The front and rear transfer means 130 is composed of a front and rear rail 132, a front and rear screw 134 and a front and rear motor (not shown).

The front and rear rails 132 are formed long before and after the left end and the right end of the moving die 120, and guide the main body base 140 to be slid back and forth.

The front and rear screws 134 are provided inside the moving die 120. The front and rear screws 134 correspond to the left and right screws 116, and serve to force the main body base 140 and the inner surface polishing machine 200 to be moved back and forth.

Therefore, the front and rear screw 134 has a shape corresponding to the front and rear nuts (not shown) formed on the bottom of the body base 140 to be described below, such as the left and right screws 116 to perform a relative movement. That is, a male screw is formed on the outer surface of the front and rear screw 134 so as to be relative to the female screw formed in the front and rear nuts.

On the other hand, although not shown, the rear end of the front and rear screw 134 is provided with the front and rear motor. The front and rear motors (not shown) rotate the front and rear screws 134 by generating power by a power source applied from the outside similarly to the left and right motors 118.

The body base 140 is spaced apart above the moving die 120. The body base 140 has a flat plate shape, and supports the inner surface polishing machine 200 to be described below. The bottom surface of the body base 140 is in contact with the front and rear rails 132 and the front and rear screws 134.

An inner surface polishing machine 200 is provided above the main body base 140. The inner polishing machine 200 is formed in a rectangular cylindrical shape, and is a part in which a direct part for performing an inner polishing operation is installed.

As shown in FIG. 3, the internal polishing machine 200 is formed of a film type and supplies a film polishing material 202 that directly contacts the work material and polishes the work surface, and supplies the film polishing material 202. A recovery roller 206 which is provided below the supply roller 204 and the supply roller 204 to recover the film abrasive 202 used to polish the workpiece, and is supplied from the supply roller 204 to recover A plurality of support rollers 208 and 208 'supporting the film abrasive 202 moving to the roller 206 and protruded to one side (left) to support and transport the film abrasive 202 in contact with the inner surface of the workpiece. The film transfer guide 210 for guiding the guide, the plunger 220 for supporting the film transfer guide 210, and is installed on the right side of the plunger 220 so that the plunger 220 reciprocates for a predetermined period from side to side. Rocking means 230 and the like.

The support rollers 208 and 208 'are provided in pairs of at least two on the left side of the supply roller 204 and the recovery roller 206. That is, an upper support roller 208 is provided on the left side of the supply roller 204, and a lower support roller 208 'is provided below the upper support roller 208, respectively, from the supply roller 204. The film abrasive 202 to be supplied and the film abrasive 202 recovered to the recovery roller 206 are guided. Further, in addition to the upper support roller 208 and the lower support roller 208 ', a separate support roller may be further provided.

The tension adjusting means 240 is further provided between the upper support roller 208 and the supply roller 204. The tension adjusting means 240 is for adjusting the tension of the film abrasive material 202 supplied from the supply roller 204. That is, by appropriately adjusting the tension of the film polishing material 202 to facilitate the polishing operation.

The tension adjusting means 240 is a control hinge 242 is formed to protrude forward from the front of the inner surface of the polishing machine 200, and the adjustment weight 244 of a predetermined length rotatably provided around the control hinge 242 And a contact roller 246 formed to protrude forward from the front surface of the adjusting weight 244 to directly contact the film abrasive 202.

As shown in the adjustment hinge 242, one end (the left end in FIG. 3) of the adjustment weight 244 is rotatably fastened. The contact roller 246 is formed of a circular roller, and the film polishing material 202 is in contact with the outer circumferential surface of the contact roller 246. The contact roller 246 is fixed to the control weight 244, or is rotatably fastened.

The adjustment weight 244 is further provided with an elastic spring 248, the elastic spring 248 pulls the control weight 244 downward with a predetermined elastic force, the film polishing material 202 is a predetermined tension It will play a role.

The stop sensor 250 is further installed on the right side of the adjustment weight 244. The stop sensor 250 detects the degree of rotation of the adjustment weight 244, to stop the operation of the internal polishing machine 200. That is, when the tension applied to the film polishing material 202 is excessively increased and the right end of the adjusting weight 244 approaches the stop sensor 250, the operation of the inner polishing machine 200 is stopped. .

The plunger 220 is provided near the front left end of the inner surface polishing machine 200. The plunger 220 supports the film transfer guide 210, and has a body 222 installed to be movable from side to side, and a pair of guide rollers 224 and 224 ′ provided on the front surface of the body 222. And a fixing key 226 for fixing the film transfer guide 210.

The pair of guide rollers 224 and 224 ′ include an upper guide roller 224 for guiding the film polishing material 202 supplied from the supply roller 204 to the film transfer guide 210, and the film transfer guide 210. And a lower guide roller 224 'for guiding the film polishing material 202 coming out from the < RTI ID = 0.0 > The lower guide roller 224 ′ has a size corresponding to that of the upper guide roller 224, and is spaced apart from the upper guide roller 224 by a predetermined interval below.

The pair of guide rollers 224 and 224 ′ are fixedly or rotatably installed on the front surface of the plunger 220. Preferably, the pair of guide rollers 224 and 224 'will be more properly installed to be rotatable.

The fixing key 226 is formed to have a predetermined length from side to side, and fixes the right end of the film transfer guide 210. The fixing key 226 is formed so that the side cross section has a trapezoidal shape. That is, the rear end of the fixing key 226 has a larger upper and lower width than the front end so that the side cross section has a trapezoidal shape. Therefore, the fixing key 226 is fastened to the plunger 220 by two fixing screws 226 '.

One end of the cutting oil hose 228 is connected to the fixing key 226. The cutting oil hose 228 is for supplying cutting oil to the film transfer guide 210, one end (upper end) is connected to the front surface of the inner polishing machine 200, and the other end (lower end) is the fixing key 226. ) Therefore, although not shown, a passage for guiding the cutting oil supplied through the cutting oil hose 228 to the film transfer guide 210 is formed in the fixing key 226.

The film transfer guide 210 has a cylindrical shape and is installed to protrude from the left end of the inner surface polishing machine 200 to the left side. That is, as shown, the left side of the film transfer guide 210 protrudes to the left side from the inner surface polishing machine 200. Therefore, the film polishing material 202 is wound around the left end (tip) of the film transfer guide 210 to polish the inner surface of the work W. The configuration of the film transfer guide 210 will be described in detail below.

The plunger 220 is guided by the guide tube 260 and flows from side to side. Looking in more detail, the upper and lower ends of the plunger 220, the cylindrical guide tube 260 is inserted into the left and right. Therefore, the plunger 220 is guided by the guide tube 260 and flows to the left and right, the left and right side ends of the guide tube 260 is fixed to the front surface of the inner surface polishing machine 200 by the fastener 262. .

The rocking means 230 is provided on the right side of the plunger 220. The swinging means 230 is installed to be connected to the right end of the plunger 220, the plunger 220 and the film feed guide 210 to the reciprocating flow to the left and right within a predetermined range by an eccentric mechanism provided therein Play a role. In other words, the rotational motion of the rocking motor (not shown) serves to convert the left and right movements. The configuration of the swinging means 230 will be described in detail below.

A film transfer means 270 is provided between the base paper roller 208 ′ and the recovery roller 206. The film transfer means 270 is to allow the film polishing material 202 to be supplied and recovered at a constant speed, and the two gears are engaged with each other. That is, the film polishing material 202 is pulled by one step while the two gears are engaged with each other. Thus, at least one of these two gears is preferably configured to be rotated by a step motor (not shown).

Work support means 280 for supporting and rotating the workpiece (W) is further provided on the upper side of the support die (100). The work support means 280 is provided at the left end of the support die 100, and is spaced apart from the upper surface of the support die 100 by a work support 280 ′ at a predetermined distance.

The work support means 280 includes a chuck 282 for picking up the work W, and a motor assembly 284 for rotating the chuck 282. The motor assembly 284 is spaced apart from the chuck 282 by a predetermined interval, and the rotational power generated by the motor assembly 284 is transmitted to the chuck 282 by a belt (not shown). Since the configuration of the chuck 282 is a generally known technique, a detailed description thereof will be omitted.

A scattering cover 286 is further provided at an upper end of the work support means 280. The scattering cover 286 is rotatably installed to serve to block the scattering of the cutting oil supplied through the left end (tip) of the film transfer guide 210, and the internal working process can be viewed from the outside. It is preferably made of a transparent material.

An operation panel 290 is further provided at the front of the support die 100. The operation panel 290 is supported by a panel support 292 protruded forward from the support die 100 and then bent upwards. In addition, the operation panel 290 includes a display unit 294 for displaying the operation state of the internal polishing machine 200 as described above, and a plurality of operations for adjusting and setting the operation state of the internal polishing machine 200. Button 296 and the like.

5 and 6 illustrate the configuration of the film transfer guide 210 in more detail. That is, FIG. 5 is a front view of the film transfer guide 210, and FIG. 6 is a rear view of the film transfer guide 210.

As shown in these figures, the film transfer guide 210 has a cylindrical shape as a whole, and the supply groove 300 and the recovery groove 302 are formed on the front side in the longitudinal direction (left and right), respectively. The supply groove 300 and the recovery groove 302 are narrow grooves of upper and lower sides, and are separated from each other by a thin flat partition wall 304.

The supply groove 300 is a groove formed on an upper side of the partition wall 304, and the film polishing material 202 supplied from the supply roller 204 through the supply groove 300 is the film transfer guide 210. Is guided from the right end to the tip (left end in FIG. 5).

The recovery groove 302 is a groove formed at the lower side of the partition wall 304, and the film polishing material passes through the front end of the film transfer guide 210 through the recovery groove 302 (the left end in FIG. 5). 202 is guided to the right end of the film transfer guide 210.

The front end of the film transfer guide 210 (the left end in FIG. 5) is formed to have a relatively smaller diameter than the center part to form the header end part 310, and the right end of the header end part 310 (FIG. 5). In the guide surface 312 is formed to be inclined. That is, the guide surface 312 is formed in the vicinity of the front end of the film transfer guide 210 gradually decreases the outer diameter toward the end, the end of the guide surface 312 is further extended to form the header end portion (310). The guide surface 312 is a portion around which the film abrasive 202 is wound.

As shown in the guide surface 312, the discharge port 314 is formed in pairs. The discharge port 314 is a portion for cutting oil is supplied to the front end of the film transfer guide 210, it is formed in communication with the internal flow path 340 to be described below.

Therefore, the cutting oil supplied through the cutting oil hose 228 is discharged and supplied to the distal end portion of the film transfer guide 210 through the discharge hole 314. The cutting oil supplied through the discharge port 314 is introduced between the film abrasive 202 and the guide surface 312 formed at the tip of the film transfer guide 210.

The key surface 320 is formed on the upper surface of the film transfer guide 210. The key back surface 320 is formed on the right side (in FIG. 5) of the film transfer guide 210 and has a flat surface.

Therefore, the bottom surface of the fixing key 226 is in close contact with the key 320. As such, when the bottom surface of the fixing key 226 is tightly fixed to the key surface 320, the film transfer guide 210 is fixed to the plunger 220.

An inlet 322 is formed at the key surface 320. The inlet 322 is a portion in communication with the internal flow passage 340 to be described below, and guides the cutting oil to flow into the film transfer guide 210. The inlet 322 is also in communication with a cutting oil flow path (not shown) formed inside the fixing key 226. Therefore, the cutting oil supplied through the cutting oil hose 228 is introduced into the film transfer guide 210 via the fixing key 226.

An adhesion member 330 is further provided at the front end portion of the film transfer guide 210 (the left end in FIG. 5 and the right end in FIG. 6). More specifically, the front end of the guide surface 312 (front in Figure 6) is provided with a contact member 330 of a predetermined size. The adhesion member 330 is a portion that allows the film abrasive 202 to be in close contact with the inner surface of the work W, and is made of a material having a predetermined elastic force and wear resistance.

In this embodiment, the urethane (urethane) is used as the contact member 330, the surface is mounted to protrude about 2.5mm outward from the surface of the film transfer guide 210. That is, the contact member 330 is formed in a roller shape fixedly mounted to the front end of the film transfer guide 210, the outer surface of the contact member 330 is about 2.5mm outward than the outer surface of the film transfer guide 210 More protrudes.

Therefore, the film abrasive 202 of the portion surrounding the outer surface of the contact member 330 is in direct contact with the inner surface of the workpiece (W) to be polished.

The inner flow path 340 is formed long in the longitudinal direction (left and right) inside the film transfer guide 210. That is, a circular inner flow passage 340 is formed at the inner center of the film transfer guide 210 to the left and right, the left end of the inner flow passage 340 communicates with the discharge port 314, and the right end is upward. It is bent and in communication with the inlet 322. Therefore, the cutting oil introduced through the inlet 322 is guided to the front end portion (the left end in FIG. 5) of the film transfer guide 210 through the inner passage 340 and discharged through the discharge hole 314.

8 shows an internal configuration of the swinging means 230.

As shown therein, the rocking means 230 is composed of a rocking frame 232 coupled to the plunger 220, an eccentric mechanism 234 forcing the flow of the rocking frame 232 and the like.

The left end of the rocking frame 232 is link-coupled with the right end of the body 222 of the plunger 220 by the link shaft 236, the inner side of the right portion of the rocking frame 232 is a circular contact hole ( 238 is formed through.

The eccentric mechanism 234 is composed of circular flat plates having different diameters. That is, the eccentric mechanism 234 is composed of a circular center piece 234 'serving as a center of rotation and a circular contact piece 234 "having a diameter larger than that of the center piece 234'. The piece 234 'and the contact piece 234 "are fixed or integrally formed with each other and rotate together about the center O of the center piece 234'.

The contact piece 234 ″ is a portion in direct contact with the rocking frame 232. That is, the contact piece 234 ″ is inserted into a contact hole 238 formed in the rocking frame 232. . Therefore, the outer diameter of the contact piece 234 "has a size corresponding to the inner diameter of the contact hole 238. More specifically, the outer diameter of the contact piece 234" is the inner diameter of the contact hole 238. FIG. It is formed slightly smaller. This is to allow the inner surface of the contact hole 238 and the outer surface of the contact piece 234 "to slide smoothly with each other.

The center O of the center piece 234 'and the center O' of the contact piece 234 " are separated from each other by a 'd' distance. Therefore, the plunger is rotated as the eccentric mechanism 234 rotates. 220 is to move left and right by a distance of '2d', that is, the plunger 220 is installed only to the left and right movement, the rocking frame 232 and the plunger 220 is fastened by link coupling Therefore, the plunger 220 is left and right by the rotational movement of the eccentric mechanism 234.

Hereinafter, the operation of the inner finishing device and the film transfer guide having the configuration as described above will be described.

First, when power is applied from the outside to the inner finishing apparatus, the user mounts the workpiece W on the chuck 282 and operates the operation button 296 of the operation panel 290 to control the operating conditions of the inner finishing apparatus. Will be set. Of course, at this time, it may be possible to set the inner finishing device to be automatically operated or to be manually operated in one step.

Hereinafter, a case in which the internal polishing machine 200 is set to operate automatically will be described as an example.

As shown in Figure 9, the operation of the inner finishing device according to the present invention, the front and rear movement to move the inner surface polishing machine 200 back and forth so that the workpiece (W) and the film transfer guide 210 is located on the same line Step (S400), and the left and right movement step (S410) so that the front end (left end) of the film transfer guide 210 is inserted or exposed into the workpiece (W), and the chuck 282 is rotated to the workpiece ( Workpiece rotation step (S420) for rotating the W), cutting oil supply step (S430) for supplying the cutting oil to the film feed guide 210 through the cutting oil hose 228, and the film feed guide 210 It consists of a rocking step (S440) for reciprocating the plunger 220 to the left and right.

Many of the above steps are performed sequentially, group by group or simultaneously.

Looking in more detail, the front and rear movement step (S400) is a process to move the internal polishing machine 200 back and forth by the front and rear transfer means 130, the body base in accordance with the operation of the front and rear motor (not shown) 140 is a step of moving back and forth.

The left and right moving step (S410) is a step in which the inner surface polishing machine 200 is moved left and right by the left and right transport means (110). That is, when the polishing operation is performed, the inner polishing machine 200 moves to the left side so that the film transfer guide 210 and the workpiece W are in contact with each other, and after the polishing operation is performed, the inner polishing machine 200 ) Is moved to the right to be separated from the film transfer guide 210 and the workpiece (W).

By the above-mentioned front and rear movement step (S400) and the left and right movement step (S410), the workpiece (W) and the film transfer guide 210 is positioned at each other in the correct position. That is, by moving the inner surface polishing machine 200 by the front and rear movement step (S400) and the left and right movement step (S410), the film abrasive material 202 in contact with the contact member 330 of the film transfer guide 210 is In contact with the inner surface of the workpiece (W) to enable the polishing operation.

The workpiece rotating step S420 is a step in which the chuck 282 holding the workpiece W is rotated by the workpiece supporting means 280, which is enabled by the rotation of the motor assembly 284. That is, when the motor assembly 284 is rotated by a power source applied from the outside, this rotational force is transmitted to the chuck 282 by a belt (not shown) to rotate the chuck 282. In this case, the workpiece W fixedly mounted to the chuck 282 is rotated.

The cutting oil supply step (S430) is a process in which the cutting oil is supplied to the front end of the film transfer guide 210 through the cutting oil hose 228, when the workpiece (W) is processed by the film transfer guide 210. .

In more detail, the cutting oil supplied through the cutting oil hose 228 is passed through the fixing key 226 through the inlet 322 formed in the film feeding guide 210 and the film transfer guide ( 210) Come inside. The cutting oil introduced into the film transfer guide 210 through the inlet 322 is moved to the front end through the internal flow path 340 and discharged to the outside of the film transfer guide 210 through the discharge port 314. do.

In this way, the cutting oil discharged through the discharge port 314 cools the film transfer guide 210 and the work W, and removes the foreign matter adhering to the film abrasive 202 and the like so that the polishing operation can be performed more efficiently. On the other hand, the rust and washing functions are also performed at the same time.

In the rocking step S440, when the inner surface of the work W is processed by the film polishing material 202, the film transfer guide 210 reciprocates from side to side so that the work of the work W is performed. In order to be more effective, this rocking step (S440) is made by the rocking means 230 described above. That is, when the right end (in FIG. 8) of the rocking frame 232 flows up and down and left and right by the eccentric mechanism 234, the flow is transmitted to the plunger 220 to reciprocate the left and right of the plunger 220. You will be forced to exercise.

On the other hand, when the polishing operation is performed by the above process, the film abrasive material 202 is supplied from the supply roller 204 is recovered to the recovery roller 206, the tension of the film abrasive material 202 is It is adjusted by the tension adjusting means 240. That is, the film polishing material 202 supplied from the supply roller 204 is pressed by the adjusting weight 244, and the film polishing material supplied to the film transfer guide 210 by the pressing force of the adjusting weight 244 ( 202 is to adjust the tension.

Therefore, when the film transfer guide 210 reciprocates left and right by the swinging means 230, the tension applied to the film abrasive 202 is changed, so that the adjustment weight 244 is adjusted at the left end. The tension of the film abrasive 202 is adjusted while rotating the hinge 242 counterclockwise or clockwise. When the tension of the film abrasive 202 increases abnormally due to a failure or the like, and the right end (in FIG. 2 or FIG. 3) of the adjusting weight 244 approaches the stop sensor 250, such a signal is generated. Transfer to the control unit (not shown) stops the polishing operation.

In addition, the film polishing material 202 supplied through the supply roller 204 is sequentially passed through the upper support roller 208 and the upper guide roller 224, and the supply groove 300 of the film feed guide 210. In accordance with the film transfer guide 210 to the contact member 330, the film polishing material 202 reached to the contact member 330 after processing the surface of the workpiece (W), the film transfer guide ( Guided along the recovery groove 302 of the 210 and sequentially passed through the lower guide roller 224 'and the lower edge roller 208', and then through the film transfer means 270, the recovery roller 206 Is wound on.

When the polishing operation is completed by the above process, the internal polishing machine 200 is moved to the right again, and the film transfer guide 210 is spaced apart from the workpiece (W). Then, the rotation of the chuck 282 is stopped.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention may be made by those skilled in the art within the above technical scope.

For example, in the above embodiment, the discharge port 314 and the inlet 322 are configured to be formed on the guide surface 312 and the key surface 320, respectively. Of course, it is also possible to be configured to be formed in other portions of the film transfer guide 210.

According to the present invention as described above, since the round bar-shaped film transfer guide is inserted into the rotating workpiece to perform the polishing operation, it is possible to effectively polish the inner surface of the workpiece compared to the conventional configuration.

In addition, the film transfer guide of the inner finishing apparatus according to the present invention is formed so that the flow path to which the cutting oil is supplied is configured to supply the cutting oil directly to the processing site of the workpiece, there is an advantage that the processing precision of the workpiece is improved.

Claims (5)

It is formed in the longitudinal direction, the supply groove 300 for guiding the film abrasive 202 is guided to the tip; A recovery groove 302 formed in the longitudinal direction and configured to guide the film abrasive 202 transferred to the tip through the supply groove 300 to be recovered; An internal flow passage 340 formed through the inside to guide the cutting oil; A key surface 320 formed in a plane on an outer circumference thereof and in contact with one surface of the fixing key 226; A guide surface 312 formed at the front end and gradually decreasing in outer diameter toward the end; And a header end portion 310 extending from one end of the guide surface 312. The film transfer guide of the inner finishing apparatus. The film transfer guide of the inner finishing apparatus according to claim 1, wherein the guide surface (312) is formed with a discharge port (314) through which the cutting oil guided through the inner channel (340) is discharged. The film transfer guide of the inner finishing apparatus according to claim 2, wherein an inlet 322 is formed in the key surface 320 to guide the cutting oil flowing into the inner flow channel 340. The method according to any one of claims 1 to 3, The film guide of the inner finishing device, characterized in that the guide surface (312) is in contact with the film polishing material 202 is in close contact with the inner surface of the workpiece (W) is formed to protrude to the outside. The method of claim 4, wherein the contact member 330, Film transfer guide of the inner finishing device, characterized in that made of urethane (urethane).

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