KR102419511B1 - Apparatus for changing a workpiece of a turning center - Google Patents

Abstract

The workpiece exchange apparatus of the turning center may include a separation unit, an exchange unit, and a first transfer unit. The separation unit may be disposed on one side of the chuck of the turning center, and may preliminarily take out the processed material from the chuck. The exchange unit may take out the processed material from the separation unit and bring in the unprocessed material into the chuck. The first transfer unit may move the exchange unit to dispose the exchange unit between the chuck and the separation unit. Therefore, in a state where the processed material is taken out from the chuck to the separation unit, the exchange unit can unload the processed material from the separation unit and simultaneously bring in the unprocessed material into the chuck, significantly reducing the material exchange operation time. have.

Description

MATERIAL CHANGE DEVICE IN TURNING CENTER

The present invention relates to a material exchange apparatus for a turning center, and more particularly, to an apparatus for unloading a processed material from a vertical turning center and carrying in an unprocessed material.

In general, machine tools can be divided into turning centers and machining centers. Machining centers can machine workpieces using rotating tools. On the other hand, a turning center can machine a rotating workpiece using a tool. The turning center may include a material exchange device for discharging the processed material from the turning center and bringing the unprocessed material into the turning center.

According to the related technologies, the material exchange device may unload the processed material from the turning center and then bring the unprocessed material into the turning center. That is, the material exchange device cannot simultaneously perform the operation of unloading the processed material and the operation of loading the unprocessed material. Therefore, since the loading of the unprocessed material must be in a standby state while the processed material is taken out from the turning center, there may be a problem in that the exchange operation time of the material becomes long.

The present invention provides a material exchange device for a turning center that can significantly shorten the material exchange time.

A material exchange apparatus of a turning center according to an aspect of the present invention may include a separation unit, an exchange unit, and a first transfer unit. The separation unit may be disposed on one side of the chuck of the turning center, and may preliminarily take out the processed material from the chuck. The exchange unit may take out the processed material from the separation unit and bring in the unprocessed material into the chuck. The first transfer unit may move the exchange unit to dispose the exchange unit between the chuck and the separation unit.

In exemplary embodiments, the material exchange device may further include a second transfer unit for moving the separation unit.

In example embodiments, the separation unit may include a bracket connected to the second transfer unit, and a first gripper mounted on the bracket to clamp the processed material from the chuck.

In exemplary embodiments, the material exchange device may further include a second rotation unit for rotating the separation unit about a second axis.

In exemplary embodiments, the material exchange device may further include a first rotation unit for rotating the exchange unit about a first axis.

In exemplary embodiments, the exchange unit includes a guide member rotated by the first rotation unit, a second gripper mounted on a first surface of the guide member to clamp the processed material from the separation unit, and and a third gripper mounted on a second surface of the guide member opposite to the first surface, clamping the unprocessed material, and carrying it into the chuck.

In exemplary embodiments, the guide member includes a guide block connected to the first rotation unit, a transfer block movably connected to the guide block and having the first surface and the second surface, and the transfer block It may include a spring for elastically supporting upwards.

In exemplary embodiments, the first transfer unit may include an actuator and a slider for moving the exchange unit by the actuator.

According to the present invention as described above, in a state in which the processed material is discharged from the chuck to the separation unit, the exchange unit can unload the processed material from the separation unit and simultaneously load the unprocessed material into the chuck. Therefore, since the unloading operation of the processed material and the unprocessed loading operation are performed substantially simultaneously, the time for the exchange of the material can be significantly reduced.

1 is a perspective view showing a material exchange device of a turning center according to an embodiment of the present invention.
Figure 2 is a front view showing the material exchange device shown in Figure 1;
Figure 3 is a left side view showing the material exchange device shown in Figure 1;
Figure 4 is a plan view showing the material exchange device shown in Figure 1;
5 is an enlarged cross-sectional view of the exchange unit of the material exchange device shown in FIG. 1 .
6 to 15 are front views sequentially illustrating a material exchange operation of the device shown in FIG. 1 .

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

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 is a perspective view showing a material exchange apparatus of a turning center according to an embodiment of the present invention, FIG. 2 is a front view showing the material exchange apparatus shown in FIG. 1, FIG. 3 is a material exchange apparatus shown in FIG. It is a left side view, and FIG. 4 is a plan view showing the material exchange device shown in FIG. 1 , and FIG. 5 is an enlarged cross-sectional view showing the exchange unit of the material exchange device shown in FIG. 1 .

1 to 5 , the material exchange apparatus of the turning center according to the present embodiment includes a separation unit 110 , a second rotation unit 120 , a second transfer unit 130 , an exchange unit 140 , and a first It may include a first rotation unit 160 and a first transfer unit 170 .

In this embodiment, the turning center may include a vertical turning center. Therefore, the vertical turning center is installed on the upper surface of the bed (B), the spindle mounted on the upper surface of the bed (B) to rotate the material, the chuck (C) mounted on the spindle to clamp the material, and the bed (B). It may include a frame (F), and a tool clamp disposed on the frame (F) for clamping the tool for processing the material.

The separation unit 110 may be disposed on the chuck C. The separation unit 110 may separate the material processed by the tool from the chuck C. The separation unit 110 may include a bracket 112 and a first gripper 114 . The bracket 112 may be connected to the frame (F). The first gripper 114 may be installed on the bracket 112 . The first gripper 114 may clamp the processed material. That is, when the clamping force applied to the processed material by the chuck C is released, the first gripper 114 may clamp the processed material.

The second rotation unit 120 may rotate the separation unit 110 about a second axis. The second axis may be a second horizontal axis. The second rotation unit 120 may be connected to the bracket 112 . In this embodiment, the second rotation unit 120 may rotate the separation unit 110 by 180 degrees. Accordingly, the first gripper 114 may be directed toward the chuck C or opposite to the chuck C by the second rotation unit 120 . The second rotation unit 120 may include a motor, a cylinder, and the like. Also, the cylinder may include a pneumatic cylinder or a hydraulic cylinder.

The second transfer unit 130 may elevate the second rotation unit 120 . The second transfer unit 130 may be mounted on the frame (F). Accordingly, the separation unit 110 may also be raised and lowered together with the second rotation unit 120 by the second transfer unit 130 . The first gripper 114 may also be lowered toward the chuck C or raised toward the opposite side of the chuck C.

The exchange unit 140 may include a guide member 150 , a second gripper 142 , and a third gripper 144 . The exchange unit 140 may finally unload the processed material clamped to the separation unit 110 from the turning center, and may transfer the unprocessed material to the chuck C at the same time. That is, the exchange unit 140 may substantially simultaneously perform the operation of unloading the processed material and the loading operation of the unprocessed material. Accordingly, there is no need to wait for the loading operation of the unprocessed material during the discharging operation of the processed material, so that the exchange time of the material can be significantly reduced.

The guide member 150 may include a guide block 152 , a transfer block 154 , and a spring 156 . The guide block 152 may be fixed to the first rotation unit 160 . The transfer block 154 may be connected to the guide block 152 to be elevating. The transfer block 154 may have a first surface and a second surface. The first side may be opposite to the second side. The first surface may be the upper surface of the transfer block 154 . The second surface may be a lower surface of the transfer block 154 . The spring 156 may elastically support the transfer block 154 upward. The spring 156 may have a function of returning the transfer block 154 to its original position.

The second gripper 142 may be disposed on the first surface of the transfer block 154 . The second gripper 142 may clamp the processed material clamped to the first gripper 114 . That is, when the clamping force applied to the processed material by the first gripper 114 is released, the second gripper 142 may clamp the processed material.

The third gripper 144 may be disposed on the second surface of the transfer block 154 . The third gripper 144 may clamp the raw material. Accordingly, when the third gripper 144 releases the clamping force applied to the raw material, the chuck C may clamp the raw material.

As described above, since the second gripper 142 and the third gripper 144 are installed on one transfer block 154, the operations of the second gripper 142 and the third gripper 144 may be linked to each other. . Accordingly, the unloading operation of the processed material of the second gripper 142 and the loading operation of the unprocessed material of the third gripper 144 may be substantially simultaneously performed.

The first rotation unit 160 may rotate the guide block 152 about a first axis. The first axis may be a first horizontal axis. The first rotation unit 160 may rotate the guide block 152 by 180 degrees about the first horizontal axis. Accordingly, since the transfer block 154 is also rotated by the first rotation unit 160 , the directions in which the first surface and the second surface of the transfer block 154 are directed may be reversed. Therefore, the second gripper 142 installed on the first surface may face downward, and the third gripper 144 installed on the second surface may face upward. In this embodiment, the first horizontal axis may be substantially orthogonal to the second horizontal axis. As another embodiment, the first horizontal axis and the second horizontal axis may form an acute angle to each other or may be parallel to each other.

The first transfer unit 170 may move the first rotation unit 160 along the second horizontal axis direction. Accordingly, the exchange unit 140 may be moved to the space between the chuck C and the separation unit 110 by the first transfer unit 170 , that is, to an exchange position of the material. The first transfer unit 170 may include an actuator 172 and a slider 174 . The actuator 172 may include a motor, a cylinder, and the like. The cylinder may include a hydraulic cylinder or a pneumatic cylinder. The slider 174 may be connected to the frame F via a bracket 176 . The slider 174 may be disposed along the second horizontal axis direction.

6 to 15 are front views sequentially illustrating a material exchange operation of the device shown in FIG. 1 .

Referring to FIG. 6 , the chuck C may be clamping a material processed by a tool. The exchange unit 140 may be disposed on the left side of the slider 174 . The third gripper 144 may be clamping the raw material.

Referring to FIG. 7 , the second transfer unit 130 may lower the separation unit 110 . Accordingly, the first gripper 114 may be positioned close to the chuck C by descending toward the chuck C. As shown in FIG. When the clamping force applied to the processed material by the chuck C is released, the first gripper 114 may clamp the processed material.

Referring to FIG. 8 , the second transfer unit 130 may raise the separation unit 110 . Accordingly, the first gripper 114 clamping the processed material may also be raised. At the same time, the first transfer unit 170 may move the exchange unit 140 to the right toward the chuck (C).

Referring to FIG. 9 , the exchange unit 140 may be disposed between the chuck C and the first gripper 114 . Accordingly, the second gripper 142 may face the first gripper 114 , and the third gripper 144 may face the chuck C.

Referring to FIG. 10 , the second transfer unit 130 may lower the separation unit 110 again. When the first gripper 114 releases the clamping force applied to the processed material, the second gripper 142 may clamp the processed material.

Referring to FIG. 11 , the second transfer unit 130 may continuously lower the separation unit 110 . Then, the transfer block 154 is lowered while the spring 156 is compressed, so that the third gripper 144 may be disposed close to the chuck C. As shown in FIG. When the third gripper 144 releases the clamping force applied to the raw material, the chuck C may clamp the raw material. An unprocessed material may be loaded into the chuck C by this operation.

Here, the first gripper 114 unclamps the processed material, the second gripper 142 clamps the processed material, the third gripper 144 unclamps the unprocessed material, and the chuck C ) to the raw material can be made substantially simultaneously. Accordingly, the final unloading of the processed material and the loading of the unprocessed material can be performed substantially simultaneously, so that the exchange time of the material can be greatly shortened.

Referring to FIG. 12 , the second transfer unit 130 may raise the separation unit 110 . As the spring 156 is tensioned, the transfer block 154 may be raised to its original position.

Referring to FIG. 13 , the first transfer unit 170 may move the exchange unit 140 to the left side of the slider 174 , that is, to the original position. Since the processed material is clamped by the second gripper 142 , the processed material may be finally unloaded from the turning center by this movement operation.

In this way, since the exchange unit 140 can bring the processed material into the chuck C at substantially the same time as the processed material is unloaded from the separation unit 110, the unprocessed material can be brought into the chuck C during the unloading operation of the processed material. It may not be necessary to wait for the import of As a result, the exchange time of the material can be greatly reduced.

Referring to FIG. 14 , when it is necessary to reverse the material in a subsequent process, the first rotation unit 160 may rotate the guide block 152 by 180°. Accordingly, the first side of the transfer block 154 may face downward and the second side face upward. That is, the second gripper 142 clamping the processed material may face downward, and the third gripper 144 may face upward.

Referring to FIG. 15 , the second rotation unit 120 may rotate the first gripper 114 by 180°. Accordingly, the first gripper 114 may face upward. As a result, there is no structure in the upper portion of the chuck (C) to interfere with the tool, so that the tool moves to the upper portion of the chuck (C) to process the raw material clamped in the chuck (C).

As described above, according to the present embodiments, in a state in which the processed material is discharged from the chuck to the separation unit, the exchange unit may unload the processed material from the separation unit and simultaneously bring in the unprocessed material into the chuck. Therefore, since the unloading operation of the processed material and the unprocessed loading operation are performed substantially simultaneously, the time for the exchange of the material can be significantly reduced.

As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. and may be changed.

B; bed C; chuck
F; frame 110 ; separation unit
112 ; bracket 114 ; first gripper
120 ; second rotation unit 130 ; second transfer unit
140 ; exchange unit 142 ; second gripper
144 ; third gripper 150 ; no guide
152; guide block 154 ; transport block
156; spring 160 ; first rotation unit
170 ; a first transfer unit 172 ; actuator
174; slider 176 ; bracket

Claims (8)

a separation unit disposed on one side of the chuck of the turning center to preliminarily take out the processed material from the chuck;
an exchange unit for discharging the processed material from the separation unit and loading the unprocessed material into the chuck;
a first transfer unit for moving the exchange unit to dispose the exchange unit between the chuck and the separation unit; and
a first rotation unit for rotating the exchange unit about a first axis;
the exchange unit
a guide member rotated by the first rotation unit;
a second gripper mounted on the first surface of the guide member to clamp the processed material from the separation unit; and
and a third gripper mounted on a second surface of the guide member opposite to the first surface to clamp the unprocessed material and carry it into the chuck;
The guide member
a guide block connected to the first rotation unit;
a transfer block movably connected to the guide block and having the first surface and the second surface; and
A material exchange device for a turning center comprising a spring for elastically supporting the transfer block upward. The apparatus of claim 1, further comprising a second transfer unit for moving the separation unit. The method of claim 2, wherein the separation unit is
a bracket connected to the second transfer unit; and
and a first gripper mounted on the bracket to clamp the processed material from the chuck. The apparatus of claim 1, further comprising a second rotation unit configured to rotate the separation unit about a second axis. delete delete delete According to claim 1, wherein the first transfer unit is
actuator; and
and a slider for moving the exchange unit by the actuator.

Images