KR200377880Y1 - Auto-grinder - Google Patents

Abstract

The present invention relates to an automatic polishing device in which a polishing operation is performed while a workpiece is automatically transferred.

The automatic polishing apparatus according to the present invention is composed of a film type and is in contact with the workpiece 130, the film polishing material 162 for polishing the surface of the workpiece, and the film polishing material 162 in contact with the surface of the workpiece 130 A super precision polishing machine (160) provided with a plunger (170) for sliding support; A pair of polishing rollers 120 are installed on one side of the superfine polishing machine 160 to cross each other at a predetermined angle to force the workpiece 130 processed by the superfine polishing machine 160 to move to one side at the same time as the rotation. Has a configuration including; Each step of the polishing operation by the automatic polishing device having such a configuration is performed sequentially or simultaneously. According to the automatic polishing apparatus according to the present invention having such a configuration, it is possible to precisely grind and have an advantage of improving work efficiency.

Description

Automatic Grinding Device {Auto-grinder}

The present invention relates to a polishing machine, and more particularly to an automatic polishing device in which a polishing operation is performed while the workpiece is automatically transferred.

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 order to solve the above problems, it is proposed and used to perform grinding while mounted on a jig (not shown) capable of artificially moving the workpiece 30 left and right. The risk was reduced but precise grinding was difficult.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide an automatic polishing device in which a fine polishing operation is automatically provided with a polishing roller for rotating and transferring a film polishing material and a workpiece.

Automatic polishing apparatus according to the present invention for achieving the above object, the film polishing material is composed of a film (film) type in contact with the workpiece to polish the workpiece surface, and the sliding support to the film abrasive material in contact with the workpiece surface An ultra precision polishing machine having a plunger; One side of the ultra-precision polishing machine is installed so as to cross each other at a predetermined angle, characterized in that it has a configuration comprising a pair of polishing rollers forcing the workpiece processed by the ultra-precision polishing machine to move to one side at the same time as the rotation.

The ultra-precision polishing machine, the supply roller for supplying the film polishing material; A recovery roller installed at one side of the supply roller to recover the film abrasive used for polishing the workpiece; A plurality of support rollers supporting the film polishing material moving from the supply roller to the recovery roller; A moving unit provided on one side of the plunger to selectively contact the surface of the workpiece with the film abrasive supported by the plunger; It is installed on one side of the plunger, characterized in that the rocking means for further reciprocating the plunger to the left and right a predetermined section.

The plunger is removably mounted to the plunger bracket interlocked with the shank moving means.

The front end of the plunger is characterized in that the center portion is formed recessed round.

The polishing roller is rotated by a roller rotating means having a configuration comprising a pair of power transmission shafts each connected to one end of the pair of polishing rollers, and a roller motor for providing rotational power to the power transmission shaft. It features.

The power transmission shaft is characterized in that it is installed to have a predetermined angle with the polishing roller.

The polishing roller has a cylindrical shape having a predetermined length, characterized in that the outer diameter gradually decreases from both ends to the center portion.

The outer circumferential surface of the polishing roller is characterized in that a plurality of discharge guide grooves for guiding the discharge of by-products generated during the polishing operation is formed.

According to the automatic polishing apparatus according to the present invention having such a configuration, it is possible to precisely grind and have an advantage of improving work efficiency.

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 a perspective view and a front view of the automatic polishing apparatus according to the present invention, respectively. 4 is a partial perspective view showing a state in which a workpiece is polished by the automatic polishing apparatus according to the present invention, and FIG. 5 is a schematic configuration diagram of the ultra-precision polishing machine constituting the automatic polishing apparatus according to the present invention. .

As shown in these figures, the support die 100 is provided in the lower portion of the automatic polishing apparatus according to the present invention. The support die 100 is formed at a predetermined height to serve to support a plurality of parts to be described below, and the rotation of the support die 100 provides rotational power to the polishing roller 120 to be described below. Parts such as a roller motor (not shown) may be installed.

The support die 100 is formed to have a substantially rectangular shape, and the die guide 102 is formed at a predetermined height along the upper edge of the support die 100. The die guide 102 serves to prevent leakage of by-products such as cooling water to be described below.

The roller support 110 is provided on an upper surface of the support die 100. That is, a square roller support 110 is provided at the upper left portion of the support die 100. And the roller support 110 is provided with a pair of polishing roller 120. The polishing roller 120 is formed to have a predetermined length from side to side, and has a cylindrical shape.

The pair of polishing rollers 120 are rotated at the same time in the clockwise or counterclockwise direction (as seen from the side) by the roller rotating means to be described below, the workpiece 130 by the rotation of the polishing roller 120 Will rotate. That is, the workpiece 130 inserted and supported between the pair of polishing rollers 120 rotates by friction in accordance with the rotation of the polishing rollers 120. For example, the polishing rollers 120 counterclockwise. In the case of rotation, the workpiece 130 rotates clockwise. (See FIG. 4).

Meanwhile, the pair of polishing rollers 120 are installed to be spaced apart from each other at a predetermined interval and at the same time to cross each other at a predetermined angle. And the polishing roller 120 is formed so that the outer diameter gradually decreases from both ends to the center portion. That is, when the pair of polishing rollers 120 are viewed from the front as shown in FIG. 3, the left and right ends thereof are installed to be inclined upward and downward by a predetermined portion so that the front and rear polishing rollers 120 cross each other, and the polishing rollers 120 At both ends, the outer diameter is relatively larger than the center portion.

Therefore, the workpiece 130 in contact with the pair of polishing rollers 120 is moved in one direction while rotating. That is, the pair of polishing rollers 120 form a curved surface in the longitudinal direction. That is, the outer diameter is gradually reduced from both ends of the polishing roller 120 toward the center portion so that the polishing roller 120 has a very large radius of curvature when viewed from the front.

Therefore, when a pair of abrasive rollers 120 having such a curved surface intersect with each other at a predetermined angle and rotate in contact with the workpiece 130, the outer surface of the workpiece 130 is in spiral contact with the outer peripheral surface of the abrasive roller 120. The workpiece 130 is moved to one side by itself.

At this time, the angle of the pair of polishing rollers 120 are inclined to cross each other is usually used 1 ° ~ 2 °, more preferably about 1.5 ° is suitable.

The outer circumferential surface of the polishing roller 120 is formed with a plurality of discharge guide grooves 122 for guiding the discharge of by-products generated during the polishing operation. That is, the discharge guide groove 122 having a predetermined depth is formed on the outer surface of the polishing roller 120 at equal intervals, and the metal chips polished by the coolant sprayed from the coolant nozzle 184 and the film abrasive 162 to be described below. Guide the chip to be discharged quickly.

One side of the polishing roller 120 is provided with a roller rotating means for providing rotational power to the polishing roller 120. The roller rotating means includes a pair of power transmission shafts 140 connected to the right ends of the pair of polishing rollers 120, respectively, and a roller motor for providing rotational power to the power transmission shafts 140. Or the like).

The power transmission shaft 140 is made of a shaft that can be adjusted in length, such as a universal joint, one end is connected to one end of the polishing roller 120, the other end is provided on the upper surface of the support die 100 It is supported by the support 142. And the installation height and position of the shaft support 142 and the polishing roller 120 is different from each other. Therefore, the power transmission shaft 140 is installed to be inclined at a predetermined angle with respect to the polishing roller 120.

As such, when the power transmission shaft 140 maintains a predetermined angle with the polishing roller 120, the power transmission shaft 140 receives a torsional resistance, and thus has the appropriate rigidity and durability as the power transmission device of the vehicle. It should be configured to

The pulley cover 144 is installed on the right side of the shaft support 142. A pulley (not shown) is provided inside the pulley cover 144, and one end of a power transmission member such as a belt or a chain is hooked to the pulley, and a belt or a chain The other end of) is hooked to a roller motor (not shown) installed inside the support die 100.

Therefore, the rotational power generated from the roller motor is transmitted to the power transmission shaft 140 through a power transmission member (belt or chain), and the polishing roller 120 rotates by the rotation of the power transmission shaft 140. Will be.

The polishing machine support 150 is formed at the rear end of the upper surface of the support die 100. The grinder support 150 is formed at a predetermined height upward from the rear end of the upper surface of the support die 100 to support the ultra-precision polisher 160 to be described below, and the inner or rear surface of the grinder support 150 Many parts may be installed.

The grinder mounting plate 152 is mounted on the front left side of the grinder support 150. And the front surface of the polishing machine mounting plate 152 is provided with a super precision polishing machine 160 for contacting the workpiece 130 and fine processing the surface of the workpiece 130.

As shown in FIG. 5, the superfine polishing machine 160 is formed of a film type and supplies a film polishing material 162 which directly contacts the work material and polishes the work surface, and supplies the film polishing material 162. A feed roller 164, a recovery roller 166 installed at the rear side of the feed roller 164 to recover the film abrasive 162 used for polishing the workpiece, and a supply roller 164 supplied from the feed roller 164 to recover A plurality of support rollers 168 for supporting the film abrasive 162 moving to the roller 166, a plunger 170 formed to protrude downward and slidingly supporting the film abrasive 162 in contact with the workpiece surface; Is installed on the upper side of the plunger 170, the film polishing material 162 supported by the plunger 170 and the movable means 172 for selectively contacting the workpiece surface, and on one side of the plunger 170 Installed on the plunger 170 It is constituted by a swing means (not shown) to reciprocate for a predetermined period to the left or right.

The support roller 168 is provided with at least two or more on the lower side of the supply roller 164 and the recovery roller 166, the plunger 170 is located between the left and right support rollers 168. The plunger 170 is detachably mounted to the plunger bracket 174. The plunger bracket 174 is provided below the shank moving means 172 and moves up and down together with the shank moving means 172. .

And the front end (lower in Figure 5) of the plunger 170 is formed recessed so that the center portion. That is, as shown in FIG. 5, the lower center portion is recessed upward to form a curved surface corresponding to the outer surface of the work piece 130. Therefore, when the film polishing material 162 is pushed by the tip of the plunger 170 and the bottom surface of the plunger 170 and closely adhered to the outer surface of the workpiece 130, surface contact is possible, thereby improving processing efficiency compared to the line contact.

Although not shown in detail, the swinging means is configured to cause the plunger 170 to swing left and right by converting the rotational motion of the motor into a linear motion by a cam. Therefore, the film polishing material 162 is polished while sliding reciprocating left and right in contact with the surface of the workpiece 130.

The shank moving means 172 is to allow the plunger 170 to move up and down to selectively contact with the workpiece 130, the hydraulic cylinder having a structure for converting the pressure energy of the fluid into mechanical energy of linear motion type ( Hydraulic cylinders are used. Accordingly, the plunger bracket 174 flows up and down according to the vertical movement of the hydraulic cylinder, and as a result, the plunger 170 mounted on the lower side of the plunger bracket 174 is moved up and down to the film polishing material 162. To selectively contact the surface of the workpiece 130.

The right surface of the ultra-precision polisher 160 is provided with a cooling water pipe 180 to which cooling water is supplied. In addition, a coolant motor 182 is installed above the coolant pipe 180 to force the supply of coolant, and a coolant nozzle 184 is connected to the lower end of the coolant pipe 180 so that the coolant is the workpiece 130. Guide them to be sprayed on the surface.

The control box 190 is installed on one side of the ultra-precision polishing machine 160. More specifically, the rectangular cylindrical control box 190 is installed spaced apart from the ultra-precision polishing machine 160 by a predetermined interval, such a control box 190 is a control support that is formed extending from the top of the grinder support 150 ( It is supported by the 192, a plurality of control parts are built in the control box 190 to control the operation of a plurality of parts, such as the ultra-precision polishing machine 160 or the polishing roller 120. In addition, the front of the control box 190 is provided with a plurality of operation buttons 194, the user is configured to set the operation of the automatic polishing device.

Hereinafter, the operation of the automatic polishing apparatus having the above configuration and the control system of the automatic polishing apparatus will be described with reference to FIGS. 2 to 7.

First, when power is applied from the outside to the automatic polishing device, the user operates the operation button 194 of the control box 190 to set the operating conditions of the automatic polishing device. Of course, at this time, it is also possible to set the automatic polishing device to operate automatically or manually to operate in one step.

Hereinafter, a case in which the automatic polishing device is set to operate automatically will be described as an example. First, when the automatic polishing apparatus is operated by the above operation, a workpiece input step (S200) for introducing the workpiece 130, a cooling water supply step (S210) for supplying cooling water to the workpiece 130 surface, and Each step such as the rotation and transfer step (S220) for moving the work piece 130 to one side at the same time as the rotation, and the polishing step (S230) for grinding the work piece 130 with the film polishing material 162 are sequentially or It is done automatically at the same time.

Looking in more detail, the workpiece input step (S200) is a process of loading the workpiece (130) to the left end of the polishing roller 120, the loading (loading) of such a workpiece 130 is the operator It may be configured to be manually or automatically by a facility.

In the cooling water supplying step (S210), after the cooling water supplied from the outside by the operation of the cooling water motor 182 passes through the cooling water pipe 180, a workpiece in which polishing is performed through the cooling water nozzle 184. 130 to spray on the surface.

And the rotation and transfer step (S220) is a process for the workpiece 130 to be transferred from the left to the right at the same time by the rotation of the pair of polishing roller 120 (see Fig. 3), this process is the By the operation of a roller motor (not shown). That is, when the roller motor generates a rotational power, the rotational power is transmitted to the pair of polishing rollers 120 through the power transmission shaft 140, the pair of polishing rollers installed to cross each other at a predetermined angle. As the 120 is rotated, the workpiece 130 moves from left to right simultaneously with rotation.

At this time, the rotation direction of the polishing roller 120 and the rotation direction of the workpiece 130 are opposite to each other. That is, for example, when the polishing roller 120 rotates in a counterclockwise direction, the workpiece 130 that rotates in contact with the pair of polishing rollers 120 rotates in a clockwise direction, on the contrary, the polishing roller 120 If) rotates clockwise, the workpiece 130 will rotate counterclockwise.

The polishing step (S230) is a step of polishing the surface of the workpiece 130 with the film polishing material 162 of the film type (film), this step, the film polishing material 162 has a constant tension (tension) Tension control process (S232) to adjust so that, the rocking process (S234) to rock the film abrasive material 162 to the left and right, and the contact process (S236) to make the film abrasive material (162) rocking from side to side to the workpiece surface (S236) ), And the process of polishing the workpiece by the film abrasive (162) (S238) and the like, each of these processes are carried out simultaneously or sequentially automatically.

The tension control process (S232) is to maintain a constant tension of the film polishing material 162 is provided from the supply roller 164 to the support roller 168 and the plunger 170 and the recovery roller 166. Although not shown, the feed roller 164 and the collecting roller 166 are provided on one side of the feed roller 164 and the collecting roller 166 is provided by the supply motor and the recovery motor to provide rotational power.

And the rocking process (S234) is a process for rocking the plunger 170 to the left and right by the rocking means described above, it is made by the operation of a cam (cam) provided in the ultra-precision polishing machine (160).

The contact process (S236) is a process to move the plunger 170 to the lower side in contact with the workpiece 130, it is made by the operation of the hydraulic cylinder constituting the shank movement means (172). That is, when the plunger 170 mounted on the plunger bracket 174 moves downward by the shank moving means 172, the film abrasive 162 supported by the plunger 170 is applied to the polishing roller 120. Will be in contact with the surface of the workpiece 130 to be moved.

When the film polishing material 162 touches the surface of the rotating workpiece 130 by the above process, polishing is performed. That is, the film abrasive material 162 moves slowly while sliding the lower end of the plunger 170 (in FIG. 5), and in this process, the surface of the work piece 130 which contacts the film abrasive material 162 is made. .

At this time, the cooling water used for cooling the workpiece 130 by the metal chip cut by the film abrasive 162 or the cooling water nozzle 184 and used to cool the work 130 is discharge guide grooves formed in the polishing roller 120 ( 122 is moved downwards and is discharged.

After the workpiece 130 is polished by the film abrasive 162 by the above process, the workpiece 130 exits to the right side of the polishing roller 120. In this case, the polishing work is completed and the user can work in the next process.

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.

As described above, according to the present invention, an ultra precision polishing machine equipped with a film polishing material for polishing a workpiece is used. Therefore, there is an effect that the roughness of the workpiece surface is improved compared to the conventional grindstone work. That is, since the processing is performed by the film abrasive having a narrow particle distribution, there is an advantage that the processing precision is improved.

In addition, in the automatic polishing device according to the present invention it is possible to perform the polishing operation automatically. That is, the workpiece is automatically transferred to one side by the pair of polishing rollers crossing each other at a predetermined angle, so that continuous work is possible. Therefore, the work efficiency is improved.

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 showing the configuration of a preferred embodiment of the automatic polishing apparatus according to the present invention.

Figure 3 is a front view of a preferred embodiment of the automatic polishing device according to the present invention.

Figure 4 is a partial perspective view showing a state in which the polishing operation is made by the embodiment of the present invention.

Figure 5 is an internal configuration showing a schematic configuration of a super fine polishing machine constituting a preferred embodiment of the automatic polishing device according to the present invention.

Figure 6 is a flow chart showing a preferred embodiment of the automatic polishing device control system according to the present invention.

7 is a flowchart showing a detailed process of the polishing step of the automatic polishing device control system according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Supporting die 102. Die guide

110. Roller support 120. Polishing roller

122. Exhaust guide groove 130. Workpiece

140. Power transmission shaft 142. Shaft support

144. Pulley Cover 150. Grinder Support

152. Polishing machine mounting plate 160. Super precision polishing machine

162. Film Abrasive 164. Feed Roller

166. Recovery Roller 168. Supporting Roller

170. Plunger 172. Shanghai East Sudan

174. Plunger Bracket 180. Coolant pipe

182. Coolant motor 184. Coolant nozzle

190. Control Box 192. Control Support

S200. Workpiece insertion step S210. Cooling water supply stage

S220. Rotation and feed step S230. Polishing Step

S232. Tension control process S234. Rocking course

S236. Contact process S238. Processing

Claims (8)

A super fine polishing machine having a film type and having a film polishing material for polishing the surface of the work in contact with the work, and a plunger for sliding support of the film polishing material in contact with the work surface; It is installed on one side of the ultra-precision polishing machine to cross each other at a predetermined angle, the automatic polishing comprising a pair of polishing rollers for forcing the workpiece processed by the ultra-precision polishing machine to move to one side at the same time as the rotation Device. The ultra-precision polishing machine according to claim 1, A feed roller for supplying the film polishing material; A recovery roller installed at one side of the supply roller to recover the film abrasive used for polishing the workpiece; A plurality of support rollers supporting the film polishing material moving from the supply roller to the recovery roller; A moving unit provided on one side of the plunger to selectively contact the surface of the workpiece with the film abrasive supported by the plunger; It is installed on one side of the plunger, the automatic polishing device characterized in that the plunging means is further provided to reciprocate a predetermined section to the left and right. 3. The automatic polishing apparatus according to claim 2, wherein the plunger is detachably mounted to the plunger bracket interlocked with the shank moving means. 4. The automatic polishing apparatus according to any one of claims 1 to 3, wherein the tip of the plunger is formed to be recessed in a central portion. The method of claim 1, wherein the polishing roller, Auto-polishing characterized in that it is rotated by a roller rotating means having a configuration comprising a pair of power transmission shafts each connected to one end of the pair of polishing rollers and a roller motor for providing rotational power to the power transmission shafts. Device. 6. The automatic polishing apparatus according to claim 5, wherein the power transmission shaft is installed to have a predetermined angle with the polishing roller. The method of claim 1, wherein the polishing roller, It has a cylindrical shape having a predetermined length, the automatic polishing device characterized in that the outer diameter gradually decreases from both ends to the center portion. The automatic polishing apparatus according to claim 1 or 7, wherein a plurality of discharge guide grooves are formed on the outer circumferential surface of the polishing roller to guide discharge of by-products generated during the polishing operation.