KR102375422B1 - Grinding apparatus for roll type work - Google Patents

Abstract

The polishing apparatus for a roll-type workpiece according to the present invention includes a workpiece rotating device for rotatably supporting a roll-type workpiece, a first rail disposed parallel to a rotation center axis of the workpiece rotation device, and linear movement along the first rail a first movable frame to be formed, a second rail disposed on the first movable frame to be perpendicular to the first rail, a second movable frame installed to move linearly along the second rail, and installed on the second movable frame, A grinding unit having a grinding wheel for grinding a roll-type workpiece, a sandpaper unit installed on the second movable frame and provided with a sandpaper assembly for surface treatment of the roll-type workpiece in contact with the roll-type workpiece; It includes a super-finishing unit having a finishing grindstone having a finer grain size than a grinding grindstone in order to finish the roll-type workpiece in contact with the grinding wheel.

Description

Grinding device for roll-type workpieces {GRINDING APPARATUS FOR ROLL TYPE WORK}

The present invention relates to a polishing apparatus for a roll-type workpiece, and more particularly, to a polishing apparatus for a roll-type workpiece capable of surface treatment by grinding the surface of the roll-type workpiece.

Metal workpieces can be manufactured in a wide variety of ways. Representative metal processing methods include plastic working, cutting, and the like.

Plastic working is a method of forming a metal material into a product having a predetermined shape and dimensions by using plasticity of the metal. Most of the metal products that are commonly encountered in daily life are manufactured through plastic processing. Plastic working includes rolling, extrusion, forging, shearing, drawing, press working, and the like. Metallic materials may be improved in strength or other properties by plastic working. Plastic working is a method suitable for mass production of objects of the same shape and size, and is developing in the direction of efficiently producing high-precision products according to the increase in precision of machinery and tools used.

The cutting process is a method of cutting various metal materials to a predetermined size by using a cutting tool, such as a bite, using rotational force. Cutting processing is the processing of metal materials with a machine, and typical examples include milling, lathe, and drilling. The characteristic of cutting is a processing method in which a part that is not needed when cutting a material is cut out as a chip.

A metal workpiece is subjected to a grinding process according to its use. The grinding process is a process of fine-tuning the surface of a metal workpiece with a whetstone or other abrasive tool in order to match the precise dimensions of the metal workpiece. In particular, since a roll-type workpiece has to have a uniform surface uniformity, the grinding process occupies an important portion in the manufacturing process.

In the case of roll-type workpieces that require fine surface roughness and a high level of surface uniformity, they are periodically polished and then reused.

Currently, although polishing apparatuses of various structures are used, research and development for structural improvement are continuously being made.

Registered Patent Publication No. 0950943 (2010.03.26.)

The present invention has been devised in view of the above points, and an object of the present invention is to provide a polishing apparatus for a roll-type workpiece capable of increasing the working efficiency of the polishing process for the roll-type workpiece and improving the polishing quality.

According to an aspect of the present invention, there is provided a polishing apparatus for a roll-type workpiece for polishing a surface of the roll-type workpiece, comprising: a workpiece rotating device for rotatably supporting the roll-type workpiece; a first rail disposed parallel to the central axis of rotation of the workpiece rotating device; a first movable frame installed to move linearly along the first rail; a second rail disposed on the first movable frame to be perpendicular to the first rail; a second movable frame installed to move linearly along the second rail so as to approach or away from the rolled workpiece coupled to the workpiece rotating device; A grinding unit shaft installed in the second movable frame and disposed parallel to the rotation center axis of the workpiece rotating device, a grinding unit driver providing a rotational force to the grinding unit shaft, and grinding the roll-type workpiece in contact with the roll-type workpiece a grinding unit having a grinding wheel separably coupled to the grinding unit shaft for the purpose; A sandpaper unit shaft installed in the second movable frame and disposed parallel to the rotational center axis of the workpiece rotating device, a sandpaper unit driver providing a rotational force to the sandpaper unit shaft, and surface treatment of the roll-type workpiece in contact with the roll-type workpiece a sandpaper unit having a sandpaper assembly detachably coupled to the shaft of the sandpaper unit to do so; and a super finishing unit shaft installed on the second movable frame and disposed perpendicular to the rotation center axis of the workpiece rotating device, and a super finishing unit driver providing rotational force to the super finishing unit shaft, the super finishing unit shaft and a superfinishing unit detachably coupled to and having a finishing grindstone having a finer grain size than the grinding grindstone to finish the roll-type workpiece in contact with the roll-type workpiece.

The sandpaper unit includes a sandpaper unit frame that supports the sandpaper unit shaft and the sandpaper unit driver and is detachably coupled to the second movable frame by a fixing member fixed to the second movable frame, the super The finishing unit may include a super finishing unit frame that supports the shaft of the super finishing unit and the super finishing unit driver, and is detachably coupled to the second movable frame by a fixing member fixed to the second movable frame. there is.

The second movable frame includes a linear moving frame placed on the second rail, the grinding unit, the sandpaper unit, and the super-finishing unit mounted thereon, and rotates a pivot axis parallel to a rotation center axis of the workpiece rotating device. It may include a tilting frame that is tiltably coupled to the linear moving frame so as to be tilted with respect to the center.

The second movable frame may include a spring interposed between the linear movable frame and the tilting frame to apply an elastic force to the tilting frame.

The superfinishing unit includes an inclined frame coupled to the second movable frame and inclined with respect to an imaginary plane including an imaginary line parallel to the first rail and an imaginary line parallel to the second rail; The super-finishing unit shaft, and supporting the super-finishing unit driver, may include a carriage installed on the inclined frame to move linearly in a direction parallel to the inclined frame.

The superfinishing unit may include a carriage driver that provides a linear movement force to the carriage.

The superfinishing unit includes an inclined frame coupled to the second movable frame and inclined with respect to an imaginary plane including an imaginary line parallel to the first rail and an imaginary line parallel to the second rail; A moving frame installed on the inclined frame so as to be able to move linearly in a direction parallel to the inclined frame, the shaft of the superfinishing unit, and the superfinishing unit driver are supported, and are linear in a direction parallel to the moving direction of the moving frame. It may include a carriage installed on the moving frame to move.

The superfinishing unit includes a moving frame guide rail disposed on the first movable frame in parallel with the second rail, and the moving frame guide rail connected to the second movable frame according to the movement of the second movable frame. a moving frame installed so as to be able to move linearly along may include

The polishing apparatus according to the present invention can grind a roll-type workpiece to have various surface roughness using a grinding unit having different surface treatment characteristics, a sandpaper unit, and a super-finishing unit. That is, the grinding process can be performed by selectively using the grinding unit, the sandpaper unit, and the super-finishing unit according to the surface roughness required for the roll-type workpiece.

In addition, the polishing apparatus according to the present invention performs a grinding process using a grinding unit for a roll-type workpiece requiring ultra-precision surface treatment, then performs a surface treatment process using a sandpaper unit, and finally, a super finishing unit using a super finishing unit. A finishing process may be performed. Therefore, it is possible to efficiently perform the surface treatment for the roll-type workpiece.

In addition, the polishing apparatus according to the present invention enables efficient operation compared to the prior art of performing a grinding process using a grinding wheel, a surface treatment process using sandpaper, or a super-finishing process using a finishing grindstone, respectively, and reduces the cost of surface treatment It can be economical

1 is a perspective view showing a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
2 is a perspective view showing a partial configuration of a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
3 is an exploded perspective view showing a partial configuration of a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
4 is a side view showing a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
5 is a side view showing a super-finishing unit of a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
6 to 8 are for explaining the operation of the polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.
9 is a side view showing a modified example of the super-finishing unit.
10 is a front view showing the super-finishing unit shown in FIG.
11 is a side view showing a modified example of the polishing apparatus for a roll-type workpiece.

Hereinafter, an apparatus for grinding a roll-type workpiece according to the present invention will be described in detail with reference to the drawings.

Figure 1 is a perspective view showing a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention, Figure 2 is a perspective view showing a partial configuration of the polishing apparatus for a roll-type workpiece according to an embodiment of the present invention, Figure 3 is the present invention An exploded perspective view showing a partial configuration of a polishing apparatus for a roll-type workpiece according to an embodiment of the present invention, and FIG. 4 is a side view showing the polishing apparatus for a roll-type workpiece according to an embodiment of the present invention.

As shown in the drawing, the polishing apparatus 100 for a roll-type workpiece according to an embodiment of the present invention includes a bed 102, a workpiece rotating device 106 for rotating the roll-type workpiece 10 to be polished, and a roll-type workpiece. A first movable frame 112 capable of linear movement in the longitudinal direction of (10), a second movable frame 118 movably installed in the first movable frame 112, and a second movable frame 118 It includes a grinding unit 130 and a sand paper unit 140 and a super-finishing unit 160 to be installed. The polishing apparatus 100 may perform a grinding process using the grinding unit 130 , a surface treatment process using the sandpaper unit 140 , and a super-finishing process using the super-finishing unit 160 .

A first rail 110 for guiding a post 104 , a workpiece rotating device 106 , and a first movable frame 112 is installed on the bed 102 . The work piece rotating device 106 includes a rotating shaft 107 supporting the roll-type work piece 10 , and a rotating actuator 108 providing a rotational force to the rotating shaft 107 . The posts 104 are disposed on the bed 102 such that a pair of them face each other to support the rotation shaft 107 . A roll-type workpiece 10 is detachably coupled to the rotating shaft 107 . The rolled workpiece 10 is coupled to the rotation shaft 107 so as to be coaxially disposed with the rotation shaft 107 . The workpiece rotation device 106 may provide a rotational force to the rotation shaft 107 to rotate the roll-type workpiece 10 coupled to the rotation shaft 107 . The first rail 110 is disposed parallel to the longitudinal direction of the roll-shaped workpiece 10 coupled to the rotation shaft 107 . That is, the first rail 110 is parallel to the central axis of rotation of the rotation shaft 107 .

The first movable frame 112 is installed to move linearly along the first rail 110 . The linear movement direction of the first movable frame 112 is the x-axis direction in the drawing. The first movable frame 112 is moved by receiving a linear movement force from the first linear movement mechanism 114 installed on the bed 102 . The first linear movement mechanism 114 may take a variety of structures capable of providing a linear movement force to the first movable frame 112, such as a rack-and-pinion type, a ball screw type. A second rail 116 for guiding the second movable frame 118 is installed on the first movable frame 112 . The second rail 116 is disposed on the first movable frame 112 to be perpendicular to the first rail 110 .

The second movable frame 118 is installed on the first movable frame 112 to linearly move along the second rail 116 . The linear movement direction of the second movable frame 118 is the y-axis direction in the drawing. The second movable frame 118 includes a linear moving frame 119 that is placed on the second rail 116 and a tilting frame 120 that is tiltably coupled to the linear moving frame 119 . An installation groove 121 in which at least a portion of the tilting frame 120 is accommodated is provided in the linear moving frame 119 .

A grinding unit 130 , a sandpaper unit 140 , and a super-finishing unit 160 are mounted on the tilting frame 120 . The tilting frame 120 may be tilted with the pivot axis 122 parallel to the central axis of the rotation shaft 107 as the rotation center. The tilting frame 120 may rotate at a predetermined angle about the pivot axis 122 by the tilting mechanism 124 installed on the linear moving frame 119 . A spring 125 is interposed between the linear moving frame 119 and the tilting frame 120 to apply an elastic force to the tilting frame 120 . The spring 125 may buffer an impact applied to the tilting frame 120 and reduce shaking of the tilting frame 120 when the tilting frame 120 tilts. A plurality of coupling holes 127 for installing the sandpaper unit 140 and the super-finishing unit 160 are provided on the upper surface of the tilting frame 120 .

The second movable frame 118 is moved by receiving a linear movement force from the second linear movement mechanism 129 installed on the first movable frame 112 . The action of the second linear movement mechanism 129 allows the second movable frame 118 to approach or move away from the rolled workpiece 10 coupled to the rotation shaft 107 . The second linear movement mechanism 129 may take various structures capable of providing a linear movement force to the second movable frame 118, such as a rack-and-pinion type, a ball screw type, and the like.

1 to 4 , the grinding unit 130 may be installed on the second movable frame 118 to perform a grinding process on the roll-type workpiece 10 . The grinding unit 130 includes a grinding unit shaft 131 , a grinding unit driver 132 providing a rotational force to the grinding unit shaft 131 , and a grinding unit shaft 131 to be in contact with the surface of the roll-type workpiece 10 . ) includes a grinding wheel 134 coupled to. The grinding unit shaft 131 is disposed parallel to the central axis of rotation of the rotation shaft 107 . The grinding wheel 134 is detachably coupled to the grinding unit shaft 131 so that it can be replaced. The grinding unit driver 132 provides a rotational force to the grinding unit shaft 131 through the power transmission mechanism 133 . The specific structure of the grinding unit driver 132 or the power transmission structure for the grinding unit shaft 131 may be variously changed.

The grinding unit 130 can grind the roll-type workpiece 10 by rotating the grinding wheel 134 at high speed in contact with the surface of the roll-type workpiece 10 . In addition, the grinding unit 130 moves in the longitudinal direction of the roll-type workpiece 10 according to the movement of the first movable frame 112 , so that it is possible to grind the entire roll-type workpiece 10 .

Although not shown in the drawings, the polishing apparatus 100 may include a device for supplying cooling water or abrasive liquid between the roll-type workpiece 10 and the grinding wheel 134 during the grinding process of the grinding unit 130 .

In addition to the structure shown, the grinding unit 130 may be changed to various other structures capable of performing a grinding process on the roll-type workpiece 10 .

The sandpaper unit 140 may be installed on the second movable frame 118 to perform a surface treatment process for the roll-type workpiece 10 . The sandpaper unit 140 includes a sandpaper unit frame 141 coupled to the tilting frame 120 , a sandpaper unit shaft 142 , and a sandpaper unit driver 143 that provides a rotational force to the sandpaper unit shaft 142 , and a roll type and a sandpaper assembly 146 for surface treatment of the workpiece 10 . The sandpaper unit shaft 142 is disposed parallel to the central axis of rotation of the rotation shaft 107 . The sandpaper unit frame 141 is detachably installed on the tilting frame 120 . That is, the tilting frame 120 may be detachably coupled to the tilting frame 120 through the fixing member 150 inserted into the coupling hole 127 of the tilting frame 120 . The sandpaper unit driver 143 provides a rotational force to the sandpaper unit shaft 142 through the power transmission mechanism 144 . The specific structure of the sandpaper unit driver 143 or the power transmission structure for the sandpaper unit shaft 142 can be variously changed.

The sandpaper assembly 146 is detachably coupled to the sandpaper unit shaft 142 to be replaceable. The sandpaper assembly 146 includes a sandpaper 147 and a support roll 148 for supporting the sandpaper 147 . The sandpaper 147 may be coupled to the support roll 148 in such a way that it is wound around the outer circumferential surface of the support roll 148 . The support roll 148 is detachably coupled to the sandpaper unit shaft 142 so as to be coaxially disposed with the sandpaper unit shaft 142 .

The structure of the sandpaper assembly 146 is not limited to the illustrated one, and may be changed to various other structures capable of surface-treating the rolled workpiece 10 in contact with the surface of the rolled workpiece 10 .

The sandpaper unit 140 can surface-treat the roll-type workpiece 10 by rotating the sandpaper 147 at high speed in contact with the surface of the roll-type workpiece 10 . In addition, the sandpaper unit 140 moves in the longitudinal direction of the roll-type workpiece 10 according to the movement of the first movable frame 112 , so that the surface treatment of the entire roll-type workpiece 10 is possible. The sandpaper unit 140 may surface-treat the surface of the roll-type workpiece 10 with a finer surface roughness than the grinding unit 130 .

Although not shown in the drawings, the polishing apparatus 100 may include a device for supplying cooling water or abrasive solution between the roll-type workpiece 10 and the sandpaper 147 during the surface treatment process of the sandpaper unit 140 .

In addition to the structure shown, the sandpaper unit 140 may be changed to various other structures capable of performing a surface treatment process for the roll-type workpiece 10 .

1 to 5 , the super-finishing unit 160 may be installed on the second movable frame 118 to perform a super-finishing process on the roll-type workpiece 10 . The super finishing unit 160 is a super finishing unit frame 161 coupled to the tilting frame 120, a super finishing unit shaft 166, and a super finishing unit driver that provides rotational force to the super finishing unit shaft 166 ( 168 , a carriage 170 supporting the super finishing unit shaft 166 and the super finishing unit actuator 168 , and a finishing grindstone 175 coupled to the super finishing unit shaft 166 . The superfinishing unit shaft 166 is disposed perpendicular to the rotation center axis of the rotation shaft 107 . A disk 167 for supporting the finishing grindstone 175 is provided at the end of the super-finishing unit shaft 166 .

The super finishing unit frame 161 is detachably installed on the tilting frame 120 . That is, the super finishing unit frame 161 may be detachably coupled to the tilting frame 120 through the fixing member 150 inserted into the coupling hole 127 of the tilting frame 120 . The super finishing unit frame 161 includes a base frame 162 coupled to the tilting frame 120 through a fixing member 150 so as to be in contact with the tilting frame 120 , and an inclined frame coupled to the base frame 162 at an angle. (163). The inclined frame 163 is inclined with respect to an imaginary plane including an imaginary line parallel to the first rail 110 and an imaginary line parallel to the second rail 116 . That is, the inclined frame 163 is disposed obliquely with respect to the xy plane in the drawing. A carriage guide rail 164 inclined with respect to the xy plane is disposed on the inclined frame 163 .

The carriage 170 is installed on the inclined frame 163 to linearly move along the carriage guide rail 164 . The carriage 170 is provided with a slider 171 that is slidably disposed on the carriage guide rail 164 . The carriage 170 is moved by receiving a linear movement force from the carriage driver 173 . The action of the carriage driver 173 allows the carriage 170 to move at an angle with respect to the xy plane. That is, the carriage 170 may advance to a position where the rolled workpiece 10 is placed as shown in FIG. 5(a), or may move away from the rolled workpiece 10 as shown in FIG. 5(b). The carriage driver 173 may take a variety of structures capable of providing a linear moving force to the carriage 170 .

The finishing grindstone 175 is detachably coupled to the disk 167 to be replaceable. The finishing grindstone 175 has a finer grain size than the grinding grindstone 134 . The finishing grindstone 175 can advance toward or retract from the rolled workpiece 10 as the carriage 170 is moved along the carriage guide rail 164 by the carriage driver 173 , and thus the rolled workpiece. The contact pressure for (10) can be adjusted. Therefore, the finishing grindstone 175 may rotate in contact with the surface of the roll-type workpiece 10 at various pressures depending on the material of the roll-type workpiece 10 or the surface roughness required for the roll-type workpiece 10 .

The super-finishing unit 160 can finish the surface of the roll-type workpiece 10 with high precision by rotating the finishing grindstone 175 at a high speed by contacting the surface of the roll-type workpiece 10 with light pressure. In addition, the super-finishing unit 160 moves in the longitudinal direction of the roll-type workpiece 10 according to the movement of the first movable frame 112 , so that ultra-precise finishing of the entire roll-type workpiece 10 is possible.

Hereinafter, the operation of the polishing apparatus 100 according to an embodiment of the present invention will be described.

The polishing apparatus 100 according to an embodiment of the present invention may perform a grinding process, a surface treatment process, and a superfinishing process for the roll-type workpiece 10 .

When the polishing apparatus 100 performs the grinding process, as shown in FIG. 6 , the grinding wheel 134 is coupled to the grinding unit shaft 131 . When the grinding wheel 134 rotates in contact with the surface of the roll-shaped work piece 10 , the surface of the roll-shaped work piece 10 is subjected to a grinding treatment. While the grinding wheel 134 rotates in contact with the surface of the rolled workpiece 10 , the rolled workpiece 10 may also be rotated by the workpiece rotating device 106 .

The grinding wheel 134 may be advanced toward or retracted from the rolled workpiece 10 by the second movable frame 118 moving along the second rail 116 . Accordingly, the grinding wheel 134 may rotate in contact with the roll-type workpiece 10 at various pressures. In addition, the grinding wheel 134 moves in the longitudinal direction of the roll-type workpiece 10 by the first movable frame 112 moving along the first rail 110 to perform a grinding process on the entire roll-type workpiece 10. can

When the surface roughness required for the roll-type workpiece 10 is at a level that cannot be achieved using the grinding unit 130 , a surface treatment process using the sandpaper unit 140 may be performed. As shown in FIG. 7 for the surface treatment process using the sandpaper unit 140, the grinding wheel 134 is separated from the grinding unit shaft 131, and the sandpaper assembly 146 is coupled to the sandpaper unit shaft 142. . By rotating the sandpaper assembly 146 in contact with the surface of the roll-type workpiece 10, the surface of the roll-type workpiece 10 may be surface-treated to have a finer surface roughness. While the sandpaper assembly 146 rotates in contact with the surface of the rolled workpiece 10 , the rolled workpiece 10 may also be rotated by the workpiece rotating device 106 .

The sandpaper assembly 146 may be advanced toward or retracted from the rolled workpiece 10 by the second movable frame 118 moving along the second rail 116 . Therefore, the sandpaper assembly 146 can rotate in contact with the roll-type workpiece 10 with various pressures. In addition, the sandpaper assembly 146 moves in the longitudinal direction of the roll-type workpiece 10 by moving the first movable frame 112 along the first rail 110 to perform a surface treatment process for the entire roll-type workpiece 10 . can do.

When the surface roughness required for the roll-type workpiece 10 is at a level that cannot be achieved with the sandpaper unit 140 , a superfinishing process using the superfinishing unit 160 may be performed. As shown in FIG. 8 in the super-finishing process by the super-finishing unit 160, the finishing grindstone 175 of the super-finishing unit 160 rotates in contact with the surface of the roll-type workpiece 10, so that the surface of the roll-type workpiece 10 It can be surface-treated to have a finer surface roughness. While the finishing grindstone 175 rotates in contact with the surface of the rolled workpiece 10 , the rolled workpiece 10 may also be rotated by the workpiece rotating device 106 .

The finishing grindstone 175 may be advanced toward or retracted from the rolled workpiece 10 by the second movable frame 118 moving along the second rail 116 . In addition, the finishing grindstone 175 may move forward and backward as the carriage 170 moves along the carriage guide rail 164 . Therefore, the finishing grindstone 175 can rotate in contact with the roll-type workpiece 10 with various pressures, and the contact pressure for the roll-type workpiece 10 can be adjusted. In addition, the finishing grindstone 175 moves in the longitudinal direction of the roll-type workpiece 10 by the first movable frame 112 moving along the first rail 110 to perform a superfinishing process on the entire roll-type workpiece 10 . can do.

As described above, the polishing apparatus 100 according to an embodiment of the present invention uses a grinding unit 130 having different surface treatment characteristics, a sandpaper unit 140 and a super-finishing unit 160 to form a roll-type workpiece. (10) can be polished to have various surface roughness. That is, the grinding process can be performed by selectively using the grinding unit 130 , the sandpaper unit 140 , and the super-finishing unit 160 according to the surface roughness required for the roll-type workpiece 10 .

For example, after performing the grinding process using the grinding unit 130 for the roll-type workpiece 10 requiring ultra-precision surface treatment, the surface treatment process using the sandpaper unit 140 is performed, and finally, the super A super-finishing process using the finishing unit 160 may be performed. Therefore, it is possible to efficiently perform the surface treatment for the roll-type workpiece (10).

In addition, in the polishing apparatus 100 according to an embodiment of the present invention, since the sandpaper unit 140 and the super-finishing unit 160 are separably installed in the second movable frame 118, the sandpaper unit 140 as needed. ) or the super-finishing unit 160 may be performed in a separated state. That is, a surface treatment operation is performed on the roll-type workpiece 10 in a state in which the superfinishing unit 160 is separated, or a surface treatment operation is performed on the roll-type workpiece 10 in a state in which the sandpaper unit 140 is separated. there is. And since the sandpaper unit 140 and the super-finishing unit 160 are installed in a prefabricated manner, replacement or repair of the sandpaper unit 140 or the super-finishing unit 160 is easy.

Meanwhile, FIG. 9 is a side view showing a modified example of the super finishing unit, and FIG. 10 is a front view showing the super finishing unit shown in FIG. 9 .

The super finishing unit 180 shown in FIGS. 9 and 10 includes a super finishing unit frame 181 coupled to the second movable frame 118 and a moving frame 185 movably coupled to the super finishing unit frame 181 . ), a super finishing unit shaft 190, a super finishing unit actuator 192 providing rotational force to the super finishing unit shaft 190, and a super finishing unit shaft 190 and a super finishing unit actuator 192. It includes a carriage 194 and a finishing grindstone 198 coupled to the superfinishing unit shaft 190 . The superfinishing unit shaft 190 is disposed perpendicular to the rotation center axis of the workpiece rotating device 106 (refer to FIG. 1). A disk 191 for supporting the finishing grindstone 198 is provided at the end of the super-finishing unit shaft 190 .

The super finishing unit frame 181 includes a base frame 182 coupled to the second movable frame 118 through a fixing member 150 , and an inclined frame 183 coupled to the base frame 182 at an angle. . The inclined frame 183 is inclined with respect to an imaginary plane including an imaginary line parallel to the first rail 110 (refer to FIG. 2 ) and an imaginary line parallel to the second rail 116 (refer to FIG. 2 ). On the inclined frame 183 , the moving frame guide rail 184 is disposed parallel to the inclined frame 183 .

The moving frame 185 is installed on the inclined frame 183 to linearly move along the moving frame guide rail 184 . The moving frame 185 is provided with a slider 186 slidably disposed on the moving frame guide rail 184 . Also, a carriage guide rail 187 parallel to the moving frame guide rail 184 is disposed on the moving frame 185 .

The moving frame 185 is moved by receiving a linear moving force from the moving frame driver 189 . The moving frame 185 may move in a direction parallel to the moving frame guide rail 184 by the action of the moving frame driver 189 . The moving frame driver 189 may take various structures capable of providing a linear moving force to the moving frame 185 .

The carriage 194 is installed on the moving frame 185 to linearly move along the carriage guide rail 187 . The carriage 194 is provided with a slider 195 slidably coupled to the carriage guide rail 187 . The carriage 194 is moved by receiving a linear movement force from the carriage driver 197 . The carriage 194 may move in a direction parallel to the moving direction of the moving frame 185 by the action of the carriage driver 197 . Carriage driver 197 can take a variety of configurations that can provide linear movement force to carriage 194 .

The finishing grindstone 198 is detachably coupled to the disk 191 so that it can be replaced. The finishing grindstone 198 may advance toward or retract from the rolled workpiece 10 as the carriage 194 is moved by the carriage driver 197 . Also, the finishing grindstone 198 may advance toward or retract from the rolled workpiece 10 as the moving frame 185 supporting the carriage 194 is moved by the moving frame driver 189 .

As such, the superfinishing unit 180 according to this embodiment can move so that the carriage 194 supporting the finishing grindstone 198 can advance toward the roll-type workpiece 10 or retreat from the roll-type workpiece 10, The moving frame 185 supporting the carriage 194 is also movable such that it can be advanced toward or retracted from the rolled workpiece 10 . Accordingly, the moving distance of the finishing grindstone 198 can be increased, and the finishing grindstone 198 can be positioned at various positions according to the size of the roll-type workpiece 10 and the superfinishing process can be performed.

On the other hand, Figure 11 is a side view showing a modified example of the polishing apparatus for a roll-type workpiece.

11, the structure of the superfinishing unit 201 of the polishing apparatus 200 for a roll-type workpiece is modified.

The super-finishing unit 201 of the polishing apparatus 200 according to this embodiment includes a moving frame guide rail 202 disposed parallel to the second rail 116 on the first movable frame 112, and a moving frame guide. A moving frame 204 installed to move along the rail 202 , a super finishing unit shaft 212 , and a super finishing unit driver 215 providing rotational force to the super finishing unit shaft 212 , and a super finishing unit It includes a carriage 217 supporting the shaft 212 and the super-finishing unit actuator 215 , and a finishing grindstone 222 coupled to the super-finishing unit shaft 212 . The superfinishing unit shaft 212 is disposed perpendicular to the rotation center axis of the workpiece rotating device 106 . A disk 213 for supporting the finishing grindstone 222 is provided at the end of the superfinishing unit shaft 212 .

The moving frame 204 is installed to move linearly along the moving frame guide rail 202 . The moving frame 204 is provided with a slider 205 that is slidably disposed on the moving frame guide rail 202 . The movable frame 204 is coupled to the second movable frame 118 by a connecting member 208 . Accordingly, the movable frame 204 moves together with the second movable frame 118 . A carriage guide rail 210 parallel to the moving frame guide rail 202 is disposed on the moving frame 204 .

The carriage 217 is installed on the moving frame 204 to linearly move along the carriage guide rail 210 . The carriage 217 is provided with a slider 218 that is slidably disposed on the carriage guide rail 210 . The carriage 217 is moved by receiving a linear movement force from the carriage driver 220 . The carriage 217 may move in a direction parallel to the moving direction of the moving frame 204 by the action of the carriage driver 220 . The carriage driver 220 may take a variety of structures capable of providing a linear movement force to the carriage 217 .

The finishing grindstone 222 is detachably coupled to the disk 213 so that it can be replaced. The finishing grindstone 222 may advance toward or retract from the rolled workpiece 10 as the carriage 217 is moved by the carriage driver 220 . Also, the finishing grindstone 222 may advance toward or retreat from the rolled workpiece 10 according to the movement of the moving frame 204 supporting the carriage 217 .

The superfinishing unit 201 according to the present embodiment is movable so that the carriage 217 supporting the finishing grindstone 222 can advance toward or retract from the rolled workpiece 10, and the carriage 217 ) supporting the moving frame 204 is also movable so that it can advance toward or retract from the rolled workpiece 10 . Therefore, it is possible to position the finishing grindstone 222 in various positions according to the size of the roll-type workpiece 10, etc., and perform the superfinishing process.

Although preferred examples of the present invention have been described above, the scope of the present invention is not limited to the forms described and illustrated above.

For example, in the drawing, the grinding unit 130 is shown to be installed on the tilting frame 120 of the second movable frame 118 , but the grinding unit 130 is a linear moving frame of the second movable frame 118 . (119) can be installed.

In addition, the second movable frame 118 is a grinding unit 130, a sandpaper unit 140, and a super-finishing unit 160 in addition to the structure including the linear moving frame 119 and the tilting frame 120 as shown. It can be modified into a variety of other structures that can support it.

In addition, the sandpaper unit 140 and the super-finishing unit 160 may be fixedly installed on the second movable frame 118 .

In the foregoing, the present invention has been shown and described in connection with preferred embodiments for illustrating the principles of the present invention, but the present invention is not limited to the construction and operation as shown and described as such. Rather, it will be apparent to those skilled in the art that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims.

100, 200: polishing device 102: bed
106: workpiece rotating device 110: first rail
112: first movable frame 114: first linear moving mechanism
116: second rail 118: second movable frame
119: linear moving frame 120: tilting frame
124: tilting mechanism 129: second linear movement mechanism
130: grinding unit 132: grinding unit actuator
134: grinding wheel 140: sandpaper unit
143: sandpaper unit actuator 146: sandpaper assembly
160, 180, 201: super finishing unit 163, 183: inclined frame
167, 191, 213: Disc
168, 192, 215: Super finishing unit actuator
170, 194, 217: carriage 173, 197, 220: carriage actuator
175, 198, 222: finishing grindstone 185, 204: moving frame
189: moving frame driver

Claims (8)

In the polishing apparatus of a roll-type workpiece for grinding the surface of the roll-type workpiece,
a workpiece rotating device for rotatably supporting a roll-type workpiece;
a first rail disposed parallel to a central axis of rotation of the workpiece rotating device;
a first movable frame installed to move linearly along the first rail;
a second rail disposed on the first movable frame to be perpendicular to the first rail;
a second movable frame installed to move linearly along the second rail so as to approach or away from the rolled workpiece coupled to the workpiece rotating device;
A grinding unit shaft installed in the second movable frame and disposed parallel to the rotation center axis of the workpiece rotating device, a grinding unit driver providing a rotational force to the grinding unit shaft, and grinding the roll-type workpiece in contact with the roll-type workpiece a grinding unit having a grinding wheel separably coupled to the grinding unit shaft for the purpose;
A sandpaper unit shaft installed in the second movable frame and disposed parallel to the rotational center axis of the workpiece rotating device, a sandpaper unit driver providing a rotational force to the sandpaper unit shaft, and surface treatment of the roll-type workpiece in contact with the roll-type workpiece a sandpaper unit having a sandpaper assembly detachably coupled to the shaft of the sandpaper unit to do so; and
A super finishing unit shaft installed on the second movable frame and disposed perpendicular to the rotation center axis of the workpiece rotating device, a super finishing unit driver providing rotational force to the super finishing unit shaft, and the super finishing unit shaft Including; and a superfinishing unit separably coupled and provided with a finishing grindstone having a finer grain size than the grinding grindstone to finish the roll-type workpiece in contact with the roll-type workpiece;
The second movable frame,
a linear moving frame overlying the second rail;
The grinding unit, the sandpaper unit, and the super-finishing unit are mounted, and tilting is rotatably coupled to the linear moving frame so that it can be tilted with a pivot axis parallel to the central axis of rotation of the workpiece rotating device. A grinding apparatus for a roll-type workpiece, characterized in that it comprises a frame.
The method of claim 1,
The sandpaper unit includes a sandpaper unit frame that supports the sandpaper unit shaft and the sandpaper unit driver and is detachably coupled to the second movable frame by a fixing member fixed to the second movable frame,
The super finishing unit includes a super finishing unit frame that supports the shaft of the super finishing unit and the super finishing unit driver and is detachably coupled to the second movable frame by a fixing member fixed to the second movable frame. A grinding device for a roll-type workpiece, characterized in that.
delete The method of claim 1,
and the second movable frame includes a spring interposed between the linear movable frame and the tilting frame to apply an elastic force to the tilting frame.
The method of claim 1,
The super finishing unit,
An inclined frame coupled to the second movable frame and inclined with respect to an imaginary plane including an imaginary line parallel to the first rail and an imaginary line parallel to the second rail;
and a carriage which supports the shaft of the super finishing unit and the super finishing unit driver and is installed on the inclined frame to move linearly in a direction parallel to the inclined frame.
6. The method of claim 5,
and the superfinishing unit includes a carriage driver that provides a linear movement force to the carriage.
The method of claim 1,
The super finishing unit,
An inclined frame coupled to the second movable frame and inclined with respect to an imaginary plane including an imaginary line parallel to the first rail and an imaginary line parallel to the second rail;
a moving frame installed on the inclined frame so as to be able to move linearly in a direction parallel to the inclined frame;
A polishing apparatus for a roll-type workpiece, characterized in that it includes a carriage installed on the moving frame to support the shaft of the super finishing unit, the super finishing unit driver, and to move linearly in a direction parallel to the moving direction of the moving frame. .
The method of claim 1,
The super finishing unit,
a moving frame guide rail disposed parallel to the second rail on the first movable frame;
a moving frame connected to the second movable frame and installed so as to be able to move linearly along the moving frame guide rail according to the movement of the second movable frame;
A polishing apparatus for a roll-type workpiece, characterized in that it includes a carriage installed on the moving frame to support the shaft of the super finishing unit, the super finishing unit driver, and to move linearly in a direction parallel to the moving direction of the moving frame. .

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