KR100431922B1 - Polishing apparatus - Google Patents

Abstract

A three-dimensional processing grinder is disclosed. The disclosed three-dimensional processing polishing apparatus includes a vertical linear clamping device having a clamp capable of clamping a workpiece, a vertical linear clamping device installed to be vertically lifted and rotated relative to the main frame, and a component for supplying the workpiece to the clamp of the vertical linear clamping machine. The feeder, the horizontal stage mounted on the main frame so as to be movable in a plane intersecting at a predetermined angle with respect to the vertical lifting direction of the vertical linear clamping machine, and the workpiece to be mounted on the horizontal stage and held in the clamp by means of a polishing disc. And a control unit for controlling the movement of the horizontal stage and the vertical linear clamping machine so that the polishing disk drive unit provided to be polished and the object to be processed can be processed by the polishing disk in a predetermined shape. According to such a three-dimensional processing polishing apparatus, the processing object can be freely processed into a desired shape, the process reproducibility can be maintained, and the processing time can be shortened.

Description

3D processing polishing machine {Polishing apparatus}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional processing polishing apparatus, and more particularly , to three-dimensional processing of a tip of an object to be processed in a hemispherical shape, such as a ferrule, which is one of optical fiber connecting connector parts. It relates to a work polishing device.

Typically, a grinding machine is a device that can process a workpiece into a desired shape by cutting.

A generally used grinding machine is structured to rotate an abrasive disk made of a material of high hardness, and the worker processes the object to be in close contact with the rotating abrasive disk. Such a processing method is difficult to use to process a product requiring high precision because the operator's artificial error range is large.

On the other hand, unlike the standard polishing disk provided in the form of a circular plate disk having a certain thickness so as to form the machining shape of the object to be processed by rotating the polishing disk at a predetermined position, the shape of the outer peripheral surface that becomes the processing surface is processed There is a method of forming and using a shape corresponding to the target shape, but there is a disadvantage in that the polishing disk needs to be replaced or the shape of the polishing disk needs to be replaced if the portion corresponding to the processing shape of the polishing disk is worn by use. In particular, when it is necessary to use an abrasive disk made of diamond material, it takes too much time to mold the abrasive disk to the processing shape, and when the molded part is worn out, most of the remaining parts of the abrasive disk that are not molded cannot be used. There is a problem of wasting resources.

The present invention has been made to improve the above problems, and can be processed to a desired shape in three dimensions while being able to use a standard abrasive disk as it is, in particular a ferrule (which is one of optical fiber connection connector parts) It is an object of the present invention to provide a three-dimensional processing polishing apparatus capable of increasing the processing speed in processing a tip portion of a pin-like object to be processed in a hemispherical shape, as in a ferrule .

1 is a perspective view showing a part of a three-dimensional processing polishing apparatus according to the present invention,

2A is a cross-sectional view showing when the clamp of FIG. 1 is clamping a workpiece.

2B is a cross-sectional view illustrating a state in which the clamp of FIG. 2A releases clamping;

Figure 3a is a cross-sectional view showing a workpiece to be polished by the three-dimensional processing polishing apparatus of Figure 1,

FIG. 3B is a cross-sectional view illustrating a form in which the component of FIG. 2A is finished in the three-dimensional polishing apparatus of FIG. 1;

3C is a view illustrating a state in which the processed parts of FIG. 2B are coupled to each other by a connector.

<Description of the reference numerals for the main parts of the drawings>

100: three-dimensional processing polishing apparatus 110; Horizontal stage

120: abrasive disc 130: vertical linear clamping machine

150, 160: clamp 180: direction selector

190: transfer repeater 199: dressing polishing machine

200: object to be processed

In order to achieve the above object, a three-dimensional processing polishing apparatus according to the present invention comprises: a three-dimensional processing polishing apparatus for performing a polishing processing on a target object in a predetermined desired shape, comprising: a main frame; A pair of clamps installed side by side at regular intervals on one side of the main frame to clamp the workpiece; A component supply unit for supplying the object to the clamp, respectively; A vertical linear clamping device for supporting the clamp to drive up and down a predetermined section; A driving source mounted to the vertical linear clamping machine to respectively rotate the clamps; An abrasive disk rotatably installed on the main frame; A horizontal stage for movably driving the XY rectangular coordinates on the main frame such that the polishing discs selectively meet the clamps, respectively; And a control unit for driving the vertical linear clamping machine and the horizontal stage so as to be driven in association with each other so that the polishing disk can grind the object to a predetermined shape.

According to the present invention, the parts feeder is capable of loading the processing object, the feeder to be supplied in a row in a row along the set transfer line the processing object is loaded; A direction sorting feeder for identifying an alignment direction of the object to be processed supplied from the feeder and aligning the object to be processed in a set alignment direction using the identified direction information; And a transfer repeater for transferring the object to be processed, which is transferred from the direction selection conveyor, to a position where the clamp can hold .

In addition, the direction sorting feeder is a rotary loading stage which can be individually mounted to the long hole-shaped seating groove formed along the direction across the rotation center of the object to be transferred from the feeder rotatably; A sensor installed in a direction crossing the rotary loading stage to irradiate light onto a workpiece loaded in the rotary loading stage, and to detect reflected light to identify an alignment direction of the workpiece; A discharge unit having a discharge port formed along a radial direction of the rotary loading stage, and configured to transfer the processing object loaded in the seating groove to the transfer repeater through the discharge hole; The control unit controls the driving unit so that the processing object loaded on the rotary loading stage may be transferred to the transfer repeater through the sending unit in a set alignment direction using a signal input from the sensor.

Hereinafter, with reference to the accompanying drawings will be described in more detail a three-dimensional processing polishing apparatus according to a preferred embodiment of the present invention.

1 is a perspective view showing a part of a three-dimensional processing polishing apparatus according to the present invention.

Referring to the drawings , the three-dimensional processing polishing apparatus 100 according to the present invention , the main frame 101 and a pair of clamps are installed side by side at regular intervals on one side of the main frame so as to clamp the object ( 150, 160, parts supply units 170, 171, 180, 190 for supplying the object to the pair of clamps (150, 160), respectively, and the pair of clamps ( 150 and 160 to support the vertical linear clamping device 130 to drive up and down a certain section, and the vertical linear clamping device 130 to rotate the pair of clamps 150, 160, respectively Drive motors 132 and 136 to be installed, an abrasive disk 120 installed on the main frame 101 so as to be rotatable drive, and the abrasive disk 120 alternately alternately with the pair of clamps, respectively. Driving to move on the XY rectangular coordinates on the main frame 101 to meet The horizontal stage 110 and the vertical linear clamping machine 130 and the horizontal stage 110 to drive in conjunction with each other so that the grinding disk 120 can be polished to a predetermined shape in the time series It includes a control unit (not shown) for controlling.

The horizontal stage 110 is installed to be movable in the X and Y directions with respect to the main frame 101.

That is, the guide rail 113 is formed along the X direction on the first plate 112 slidably installed on the guide rail 111 formed along the Y direction on the main frame 101. The horizontal stage 110 is formed in 113 so that sliding is possible. In addition, the first plate 112 is advanced in the Y direction by the first ball screw 116 rotated by the first motor 115, the horizontal stage 110 is rotated by the second motor 117 The second ball screw 118 is advanced in the X direction.

Accordingly, the horizontal stage 110 may be freely positioned in the X and Y planes by the first motor and the second motor 115 and 117.

The polishing disk 120 is coupled to the rotating shaft 119 rotatably installed along the X direction on the horizontal stage 110.

The rotating shaft 119 is coupled to be rotated by the belt 125 coupled to the pulley 123 of the third motor 122.

The vertical linear clamping machine 130 is provided in parallel with each other so as to be able to vertically move up and down in the Z-axis direction with respect to the abrasive disc 120.

That is, the vertical linear clamping device 130 is installed on the vertical sliding plate 149 slidably installed in the vertical direction along the guide rail formed in the main frame in the vertical direction. The vertical sliding plate 149 is advanced vertically by the ball screw rotated by the motor 147.

The vertical linear clamping device 130 is inserted into the clamping controller 135, 139 and the brackets 135b, 139b of the clamping controller 135, 139, the middle of which is the support guide member 141. And clamps 150 and 153 supported through 143. The clamps 150 and 153 are rotatably connected by belts 134 and 138 coupled to the pulleys 133 and 137 connected to the motors 132 and 136.

The clamping controllers 135 and 139 are provided to be lifted up and down by the air cylinders 135a and 139a.

Clamps 150 and 160 freely inserted into brackets 135b and 139b of clamping controller 135 and 139 are shown in FIG. 2A.

Referring to FIG. 2A, the clamps 150, 160 are rotatably mounted within the shafts 154, 164 and the shafts 154, 164 rotatably installed in the outer housings 151, 161. Inserted rods 153 and 163 and holding portions 152 and 162 that expand and contract as the rod advances and contracts at the rod tip. The shafts 154 and 164 are coupled with the belts 134 and 138.

The shafts 154 and 164 and the rods 153 and 163 are coupled to be rotated together. Springs 155 and 165 are interposed between the bases 151a and 161a formed to extend under the rods 153 and 163 and the lower ends of the shafts 154 and 164.

The holding parts 152 and 162 coupled to the upper ends of the rods 151 and 161 are formed to be expanded / contracted by the retraction of the rods 151 and 161. That is, FIG. 2A shows a state in which the bases 151a and 161a of the rods 151 and 161 are spaced apart from the brackets 135b and 135b. In this case, the holding parts 152 and 162 are partially disposed in the interference member. It is in a state of being caught and contracted. On the other hand, when the brackets 135a and 135a are raised by the advancing of the cylinders 135a and 135a and the bases 151a and 161a are pushed up, the holding parts 152 by the rods 153 and 163 which are raised. As the 162 deviates from the interference member, the holding parts 152 and 162 in which the pressing force is released are extended to allow the withdrawal of the object as shown in FIG. 2B.

The holding parts 152 and 162 are made of a metal material with strong elasticity, and when the external force is not applied, the holding parts 152 and 162 may be expanded to be expanded, and when the external force is applied, the holding parts 152 and 162 may be contracted. However, the upper part is wide and the lower part is formed in the form of narrow.

Inside the rod 153, air tubes 159 and 169 are formed to discharge the clamping-released workpiece through the opening 157.

Therefore, the holding parts 152 and 162 are moved forward by interlocking with the rods 153 and 163, and the predetermined angles are opened. Referring to FIG. 1, the parts feeders 170, 171, 180, and 190 may receive a large amount of a workpiece in a loading container 171 like a normal vibration part feeder to align the workpiece to a supply path by vibration or the like. The feeder 170 to be sequentially supplied, the direction sorting feeder 180 for sorting and aligning the front end and the rear end of the object to be fed from the feeder 170, and the direction sorting feeder 180. It includes a transfer repeater 190 for transferring the object to be aligned in the direction to the position where the pair of clamps (150, 160) can hold. According to an embodiment of the present invention, the loading container 171 is loaded with a pin-like processing object 200 such as a ferrule, which is one of optical fiber connection connector parts, as shown in FIG. 3A. By the operation of the feeder 170, it is possible to supply to each of the clamps 150, 160 of the vertical linear clamping device 130.

According to the present invention, the parts feeder 170 and 171 may be applied to the known parts feeder of various forms depending on the shape of the object to be applied.

Here, the direction sorting feeder 180 and the feed repeater 190 is a technical configuration of the "fiber-optic ferrule alignment device (No. 10-2001-0014814)" patent filed March 22, 2001 by the present applicant The action is introduced in detail.

In the following embodiment will be described taking a machining process for the processing object 200 in the form of a pin as shown in Figure 3a as an example.

The three-dimensional polishing machine 100 according to the preferred embodiment of the present invention rounds one end of the object 200 as shown in FIG. 3A as shown in FIG. 3B in a hemispherical three-dimensional rounding process.

Here, the processing object 200 shown in FIG. 3A is a hollow material 220 having a diameter of about 125 μm formed of a ceramic material as a component for an optical coupler, and one end of the workpiece 200 is easier than the hollow 220 to facilitate the insertion of the optical fiber. An extended opening 210 is formed. Rounding the opposite side 230 of the expanded opening 210 of the object to be processed as shown in Figure 3b, the product is completed, when used as a connector for connecting the optical path through the expanded opening 210 of the product through the optical fiber ( It may be inserted into the connector holder 220 as shown in Figure 3c with the core of the (not shown).

When direction identification of the object to be polished is required as described above, the component feeder preferably includes a feeder 170, a direction selector 180, and a transfer repeater 190.

The feeder 170 may load the object to be processed 200, and the loaded object 200 may be supplied to each other in rows along a set transfer line.

That is, the feeder 170 is formed so that the conveyance guide line is gradually raised in a spiral along the circumferential direction in the stacking cylinder 171, and is then supplied to the sorting feeder 180 along the linear line. The feeder 170 is provided with a vibrator (not shown) for applying vibration to the loading container 171.

The direction-specific feeder 180 identifies the alignment direction of the workpiece to be supplied in a row from the feeder 170, and arranges and transfers the workpiece in the set alignment direction using the identified direction information. .

The directional feeder 180 includes a rotary loading stage 181, a sensor 182, and a delivery unit 185.

The rotary loading stage 181 is formed with a long mounting groove 181a that can individually seat the object to be processed 200 transferred from the feeder 170 to the inlet 184. The rotary loading stage 181 is rotated by a motor (installed under the rotary loading stage) controlled by a controller (not shown).

The long mounting recess 181a formed in the rotary loading stage 181 is formed to a predetermined depth along a direction crossing the rotation center.

A plurality of sensors 182 may be installed in a direction crossing the rotary loading stage 181 to irradiate light onto a workpiece loaded on the rotary loading stage 181 and to detect reflected light to identify an alignment direction of the workpiece. Output to the controller so that. Both ends of the object to be processed have different opening sizes so that the amount of light emitted from the light source and reflected is different, thereby identifying the alignment direction of the object.

The delivery unit 185 includes a plurality of lead pipes 187 and 188. The delivery unit 185 selectively outputs the processing object introduced into the outlet 186 formed along the radial direction of the rotary loading stage 181 to either the first outlet pipe 187 or the second outlet pipe 188. The delivery unit 185 alternately outputs the processing object 200 supplied through the outlet 186 while being reciprocated in the X direction through the first outlet pipe 187 and the second outlet pipe 188.

The transfer repeater 190 has first to third sliders 192, 194 and 193 that can be retracted relative to the auxiliary frame 191 coupled to the mainframe.

The first slider 192 has a hole formed in the lower portion of the auxiliary frame 191 so as to receive the processing object transferred through the drawer pipes 187 and 188 from the direction selective feeder 180. 191) to be retracted. An air pipe is connected to the hole so as to discharge the object to be processed through the hole.

The first slider is retracted by the air drawn in through the air pipe, and the state shown shows the advanced state.

The second slider 194 is also installed to be advanced by the air supplied to the auxiliary frame 191, and the third slider 193 is installed to be advanced by the air on the second slider. On the third slider 193, air tubes 195 and 196 and discharge tubes 197 are formed to hold the object to be discharged from the holes of the first slider 192.

The air pipes 195 and 196 on the third slider 193 are connected to a plurality of air pipes through one suction pipe, and are formed to communicate with each other in the slider 193, and to one air pipe 195. A pin cylinder is installed.

By the retraction control of the second slider 194 and the third slider 193, loading of the object to the clamps 150 and 160 and discharge of the processed object to the clamps 150 and 160 may be performed. . That is, when the second slider 194 and the third slider 193 are in the backward state while the first slider 192 is advanced, the object to be discharged through the hole of the first slider 192 is an air pipe ( 195, and then, when the second slider 194 is advanced, the discharge pipe 197 of the third slider 193 is positioned to face the clamps 150 and 160 so as to discharge the processed object. do.

In addition, when both the second slider 194 and the third slider 193 are advanced, the workpiece to be held through the air pipe 195 may be introduced into the clamps 150 and 160.

Each slider 192-194 is provided so that it may advance and retreat by pneumatic pressure.

Reference numeral 199 denotes a dressing machine in which the dressing disk 199 is installed to rotate in engagement with the polishing disk 120. When the polishing disk 120 is to be rotated in engagement with the dressing disk 199, the position of the horizontal stage 110 may be adjusted.

Dressing disk 199 is preferably applied to a material lower than the hardness of the abrasive disk 120. Reference numerals 122, 123, and 125 denote abrasive disc drives for rotating the abrasive disc 120, 122 denotes a drive motor, 123 and 125 denote a rotary drive shaft 119 on which the abrasive disc 120 is installed. It shows the belt pulley to be connected.

The abrasive disc 120 is installed to remove foreign substances generated in the process of polishing the object, and to inject a predetermined liquid and / or air toward the processing position to maintain a constant polishing conditions. The injector has been omitted to avoid the complexity of the figure.

Each of the above-described components are interconnected by a control unit (not shown) including a control panel and a control box, for example, such as a conventional automation facility, so that the processing object 200 may be processed while being transported in a set process sequence. Is controlled in time series to be driven .

The operation of the three-dimensional processing polishing apparatus will be described below.

The workpiece 200 loaded in the loading container 171 of the feeder 170 is transferred while forming heat along the spiral guide line and the straight guide line by the oscillation of the feeder 170 to reach the inlet 184.

The rotary loading stage 181 is rotated by the control unit so that the seating groove 181a is opposed to the inlet 184, the workpiece 200 transferred to the inlet 184 of the direction selector 180 is the rotary loading stage 181. It is seated in the mounting groove (181a) of.

Then, the rotary loading stage 181 is rotated so that the seating groove 181a faces the position of the sensor 182, and the direction is identified using the signal output from the light receiving unit of the sensor 182.

In order to reduce the direction identification error rate, the apparatus may be rotated 180 degrees and then driven to determine whether the direction identification information previously identified by the sensor is correct using the signal output from the light receiving unit of the sensor 182. Once the direction of the object to be processed 200 is identified, the rotary loading stage 181 is rotated to be arranged in the set alignment direction so as to be transferred through the outlet 186. Thereafter, the workpiece to be transferred through the outlet 186 is transferred to the hole of the first slider 192 of the transfer repeater 190 through the selected outlet tube 187 or 188.

This process is repeated according to the machining cycle of the object to be processed 200. In the embodiment of the present invention, the two vertical linear clamps 130 are capable of holding the object to be processed alternately, so that the delivery unit 185 of the direction selector 180 alternately moves the outlet pipes 187 and 188. The reciprocating motion is performed in accordance with the part inlet cycle so that the object to be processed is transferred.

On the other hand, the object to be processed sent through the sending unit 185 is seated in the hole of the first slider 192 in the retracted state, and then, when the seating plate is advanced a predetermined distance, the second slider 194 and the third slider 193 The object to be discharged from the hole by holding back) is held.

Thereafter, the second slider 194 is advanced to position the discharge pipe 197 opposite the clamps 150 and 160, and then the corresponding one of the clamping controllers 135 and 139 is mounted to the brackets 135b and 139b. ) So that the holding unit 152, 162 is expanded, and the air is supplied to discharge the finished object 200 from the holding unit 152, 162 through the discharge pipe 197. .

Thereafter, the third slider 193 is advanced with respect to the advanced second slider 194 to introduce the workpiece to be held through the air pipe 195 into the clamps 150 and 160, and the holding unit 152 ( The brackets 135b and 139b descend to drive the corresponding one of the clamping controllers 135 and 139 so that the 162 can hold the object 200.

On the other hand, the round processing of the object to be held in the holding unit 152, 162, while the horizontal position of the rotating polishing disk 120 through the rotation control of the first and second motor, the motor 147 in the Z direction ).

This process is usually controlled to be performed alternately on each of the vertical linear clampers 130.

As described so far, the three-dimensional processing polishing apparatus according to the present invention can freely process the desired object into a desired shape, maintain process reproducibility, and shorten the processing time. In addition, there is an advantage that the standard abrasive disc supplied in the form of a disc can be used as it is without additional post-processing, there is an advantage that can be used evenly polished surface.

Claims (5)

In the three-dimensional polishing apparatus for polishing the object to be processed into a predetermined desired shape, Main frame 101; A pair of clamps 150 and 160 installed side by side at regular intervals on one side of the main frame to clamp the workpiece; A component supply unit for supplying the object to the clamp, respectively; A vertical linear clamping device (130) for supporting the clamp to drive up and down a predetermined section; A driving source mounted to the vertical linear clamping machine to respectively rotate the clamps; An abrasive disc 120 rotatably installed on the main frame; A horizontal stage (110) for movably driving the XY orthogonal coordinates on the main frame such that the polishing disk selectively meets the clamps; And a control unit for controlling the time-series to drive the vertical linear clamping machine and the horizontal stage in association with each other so that the polishing disk can grind the object to a predetermined shape. Device. The method of claim 1, wherein the component supplier A feeder capable of loading the object to be processed, wherein the loaded object may be supplied in a row along a set transfer line; A direction sorting feeder for identifying an alignment direction of the object to be processed supplied from the feeder and aligning the object to be processed in a set alignment direction using the identified direction information; And a conveying repeater for conveying the object to be processed from the direction selection conveyer to a position where the clamp can hold. The method of claim 2, wherein the direction sorting feeder A rotary loading stage capable of individually loading the object to be processed transported from the feeder into a slot-type seating groove formed along a direction crossing a rotation center, and rotatably installed; A sensor installed in a direction crossing the rotary loading stage to irradiate light onto a workpiece loaded in the rotary loading stage, and to detect reflected light to identify an alignment direction of the workpiece; A discharge unit having a discharge port formed along a radial direction of the rotary loading stage, and configured to transfer the processing object loaded in the seating groove to the transfer repeater through the discharge hole; The control unit controls the driving unit so that the processing object loaded on the rotary loading stage can be transferred to the transfer repeater through the sending unit in a set alignment direction using a signal input from the sensor. Processing grinding machine. The method of claim 2, wherein the transfer repeater A first slider having a hole in which the object to be processed conveyed from the direction selector is seated and installed to be retracted with respect to the main frame; A second slider mounted retractably with respect to the main frame; And And a third slider installed to be able to move forward and backward with respect to the second slider, wherein the third slider is installed to hold the workpiece to be seated in the hole of the first slider and to discharge the finished workpiece to the clamp. Dimensional Grinding Machine. The three-dimensional processing polishing apparatus according to claim 1, further comprising a dressing machine provided with a dressing disk so as to rotate in engagement with the polishing disk.