TWI613033B - Tool changing method and machine tool using the same - Google Patents

Abstract

A tool changing method and a machine tool using the same. The tool change method includes the following steps. First, a cutter transport device is moved to a knife receiving position. The cutter transport device is equipped with a knife seat, and the knife seat holds a cutting knife facing upward. Then, at the knife receiving position, a knife receiving holder grabs the knife holder from the knife transport device. Then, turn the knife holder so that the cutting knife on the knife holder faces down. Then, the tool holder is moved to a tool chuck to assemble the tool holder to the tool chuck.

Description

Tool changing method and machine tool using same

The invention relates to a tool changing method and a machine tool using the same, and more particularly to a tool changing method using a tool transport device and a machine tool using the same.

Optical films usually require a cutting machine to cut the size. After the cutter of the cutting machine is blunt, the cutting knife is usually removed from the chuck manually, and then a new cutting knife is manually replaced. However, the manual knife change method is necessarily time-consuming, and the operator is easily injured by the cutting knife, causing accidents at work.

Therefore, a new tool changing method is urgently needed to improve the aforementioned conventional problems.

Therefore, the present invention proposes a tool changing method and a machine tool using the same, which can improve the learning problem.

According to an embodiment of the present invention, a tool changing method is proposed. The tool change method includes the following steps. Move a cutter transport device to a knife receiving position. The cutter transport device is equipped with a first cutter holder, and the first cutter holder holds a first cutting face facing upward. A knife holder; at the knife receiving position, a knife holder grasps the first knife holder from the knife transport device; rotate the knife holder so that the first cutting knife on the knife holder faces downward; and move the knife holder to a A tool chuck to assemble the first tool holder to the tool chuck.

According to another embodiment of the present invention, a machine tool is proposed. The machine tool includes a cutter transport device, a cutter holder, and an operating mechanism. The cutter transport device includes a first cutter holder and a first cutting blade. The first cutting knife is clamped on the first knife seat. The knife holder is used for grasping the first knife holder. The operation mechanism is connected to the cutter transport device, and is used for translating the cutter transport device to a knife receiving position, for translating and rotating the knife receiving seat.

In order to have a better understanding of the above and other aspects of the present invention, preferred embodiments are described below in detail with the accompanying drawings, as follows:

100‧‧‧ Tool transport device

110‧‧‧ knife carrier

111‧‧‧ Insertion

120‧‧‧The first knife seat

120a1‧‧‧first insertion hole

120a2‧‧‧Second insertion hole

130‧‧‧The first cutting knife

140‧‧‧Second knife holder

150‧‧‧Second cutting knife

160‧‧‧ the first carrier board

165‧‧‧Second carrier board

170‧‧‧ Positioning piece

200‧‧‧tool machine

210‧‧‧ knife holder

211‧‧‧Insertion lever

220‧‧‧tool chuck

230‧‧‧platform

240‧‧‧ the first operating element

250‧‧‧Second operating element

260‧‧‧Third operating element

261‧‧‧first drive shaft

262‧‧‧Gear Set

263‧‧‧chain

264‧‧‧Second transmission shaft

265‧‧‧first gear

266‧‧‧ Rack

270‧‧‧Fourth operating element

271‧‧‧third drive shaft

272‧‧‧Second Gear

273‧‧‧Third gear

274‧‧‧Fourth drive shaft

A1, A2‧‧‧angle

P1‧‧‧Cutting knife replacement position

P2‧‧‧ middle position

P3‧‧‧ knife position

Figures 1A (a) to 1E show process diagrams of a tool changing method according to an embodiment of the present invention.

2A to 2H are process diagrams of a tool changing method according to another embodiment of the present invention.

FIG. 3A is an external view of a machine tool according to an embodiment of the present invention.

FIG. 3B is a schematic diagram of the mechanism for connecting the third operation element and the knife receiving seat in FIG. 3A.

FIG. 3C is a schematic diagram of a mechanism for connecting the fourth operation element and the knife receiving seat in FIG. 3A.

Figures 1A (a) to 1E show process diagrams of a tool changing method according to an embodiment of the present invention.

First, as shown in FIGS. 1A (a) and 1A (b), FIG. 1A (a) shows a schematic diagram of a tool transport device 100 according to an embodiment of the present invention, and FIG. 1A (b) shows 1A (a) A cross-sectional view of the tool transporting device 100 in the direction 1A (b) -1A (b) '. The tool transporting device 100 is, for example, located at the cutting blade replacement position P1. The cutter transport device 100 includes a cutter base stage 110, a first cutter base 120, a first cutter 130, a second cutter base 140, and a second cutter 150. The first cutting blade 130 is clamped on the first blade holder 120, and the second cutting blade 150 is clamped on the second blade holder 140. The first knife holder 120 and the second knife holder 140 are respectively mounted on the upper and lower surfaces of the knife holder stage 110 so that the first cutting knife 130 held by the first knife holder 120 faces upward and is held by the second knife. The second cutting blade 150 of the seat 140 faces downward, that is, the arrangement directions of the first cutting blade 130 and the second cutting blade 150 are different.

In an embodiment, the first cutting blade 130 and the second cutting blade 150 may be strip-shaped blades or blades, cutting dies or other cutting tools. In one embodiment, a plurality of first cutting blades 130 may be disposed on the first blade holder 120 and / or a plurality of second cutting blades 150 may be disposed on the second blade holder 140. In an embodiment, the foregoing first cutting blades 130 or the plurality of second cutting blades 150 may be arranged in parallel, but the embodiment of the present invention is not limited thereto.

As shown in FIG. 1A (b), the tool holder stage 110 includes an insertion portion 111, and the first tool holder 120 includes a first insertion hole 120a1. Insertion of knife holder stage 110 The insertion portion 111 is inserted into the first insertion hole 120 a 1 of the first tool holder 120 to connect the tool holder stage 110 and the first tool holder 120. The shape of the insertion portion 111 and the first insertion hole 120a1 are substantially consistent. For example, the insertion portion 111 is a T-shaped rail, and the first insertion hole 120a1 is a T-shaped groove. Due to the T-shaped design, the first tool holder 120 and the tool holder stage 110 are not separated from each other in the vertical direction. In addition, the second tool holder 140 includes a hole structure similar to the first insertion hole 120a1 to produce a similar effect, which is not described again here.

Then, as shown in FIG. 1B, it is a schematic diagram showing the movement of the tool transporting device 100 of FIG. 1A (a) toward a knife receiving base 210. The tool transporting device 100 is translated to a tool receiving position P3 in the direction of the tool receiving 210, where the tool receiving position P3 is a position where the tool receiving 210 can grasp the first tool receiving 120.

Then, as shown in FIGS. 1C (a) and 1C (b), FIG. 1C (a) shows a schematic diagram of the tool holder 210 grasping the first tool holder 120, and FIG. 1C (b) shows the 1C (a) A cross-sectional view of the knife holder 210 and the first knife holder 120 in the direction 1C (b) -1C (b) 'in the figure.

As shown in FIG. 1C (a), the knife holder 210 grasps the first knife holder 120. After the first tool holder 120 is grasped, the tool transporting device 100 can be translated away from the tool holder 210 to a middle position P2, which is located at the cutting blade replacement position P1 (as shown in FIG. 1A (a)). (Shown) and the knife position P3 (as shown in Figure 1B).

As shown in FIG. 1C (b), the tool holder 210 includes at least one insertion rod 211, and the first tool holder 120 has a second insertion hole 120a2. The tool holder 210 is inserted into the second insertion hole 120a2 by the insertion rod 211 to grasp the first tool holder 120. In an embodiment, the shape of the insertion rod 211 and the second insertion hole 120a2 are substantially the same. The rod 211 is a T-shaped rail, and the second insertion hole 120a2 is a T-shaped groove. In another embodiment, in the step of the tool holder 210 grasping the first tool holder 120, a pressure source provides a clamping force (not shown) on at least one insertion rod 211 to fix the first tool holder 120. Relative position to the knife holder 210. For example, the two insertion rods 211 can be moved in a relatively close direction or a relatively distanced direction to abut against the wall surface of the corresponding two second insertion holes 120a2, so as to firmly grasp the knife holder 210. The aforementioned pressure source is, for example, air pressure or oil pressure.

Then, as shown in FIG. 1D, after grasping the first blade holder 120, the blade holder 210 is rotated by an angle A1, and the first cutting blade 130 on the blade holder 210 is changed from upward to downward. . This angle A1 is, for example, 180 degrees. Under the aforementioned T-shaped design and / or clamping force, even after the first cutting blade 130 is turned downward, the first blade holder 120 does not fall down from the blade holder stage 110.

Then, as shown in FIG. 1E, the tool holder 210 is moved to an adjacent tool chuck 220 to assemble the first tool holder 120 on the tool chuck 220, for example, the tool chuck 220 holds the first tool holder under oil pressure. Knife holder 120. Then, the tool chuck 220 can drive the first tool holder 120 for processing, for example, cutting an optical film, an optical film such as a protective film with a single layer structure, or a polarizing film with a multilayer structure.

When the first cutting blade 130 assembled on the tool chuck 220 needs to be replaced (such as when the first cutting blade 130 has been dulled or damaged), the tool transport device 100 can be used for tool replacement, such as replacing the second cutting blade. Cutting knife 150. The following description is based on Figures 2A to 2H. 2A to 2H are process diagrams of a tool changing method according to another embodiment of the present invention.

First, as shown in FIG. 2A, the cutter holder 210 grasps the first cutter holder 120 from the cutter chuck 220 and rotates the first cutter blade 130 upward.

Then, as shown in FIG. 2B, the tool transport device 100 is translated to the knife receiving position P3. Next, the tool holder 210 transmits the first tool holder 120 to the tool transport device 100. The first tool holder 120 is directly transmitted to the tool transport device 100 through the tool holder 210, which can save time for manual disassembly operations, reduce the waiting time for cutting work, and avoid being cut or pressed during manual tool replacement operations. Risk of injury.

Then, as shown in FIG. 2C, the tool transport device 100 is moved to the intermediate position P2.

Then, as shown in FIG. 2D, at the intermediate position P2, the knife holder stage 110 is rotated to drive the second knife holder 140 to rotate at an angle A2, so that the second cutting knife 150 faces upward. This angle A2 is, for example, 180 degrees.

Then, as shown in FIG. 2E, the tool transport device 100 is moved to the knife receiving position P3.

Then, as shown in FIG. 2F, the tool holder 210 grabs the second tool holder 140 from the tool transport device 100.

Then, as shown in FIG. 2G, after grasping the second knife holder 140, the knife holder 210 is rotated by an angle A1 so that the second cutting knife 150 on the knife holder 210 faces downward. This angle A1 is, for example, 180 degrees. Due to the aforementioned T-shaped design, even after the second cutting blade 150 faces downward, the second blade holder 140 does not fall down from the blade holder stage 110.

Then, as shown in FIG. 2H, move the knife holder 210 to the adjacent knife A chuck 220 is used to assemble the second tool holder 140 to the tool holder 220. For example, the tool holder 220 holds the second tool holder 140 with oil pressure. Then, the tool chuck 220 can drive the second tool holder 140 for processing, such as cutting an optical film, an optical film such as a protective film with a single layer structure, or a polarizing film with a multilayer structure.

It can be seen from the above that the removal of the first tool holder 120 and the installation of the second tool holder 140 are completed by the tool transport device 100, which can save time for manual disassembly operations, reduce the waiting time for cutting work, and avoid manual replacement. Risk of cutting or crushing during tool operation.

In addition, as shown in FIGS. 2G and 2H, while the tool holder 210 is moved to the tool chuck 220, the tool transport device 100 can be translated to the cutting blade replacement position P1, so that the operator can remove the first cutting blade 130, and clamp another available first cutting knife 130 on the first knife holder 120. In addition, in one embodiment, the operator can also selectively assemble another second knife holder (not shown) on the knife holder stage 110, and the other second cutting knife can be clamped on the other A second knife seat. In addition, the aforementioned mobile tool transport device 100, the rotary tool holder stage 110, the mobile tool holder 210 and / or the rotary tool holder 210 may be manually operated or controlled by a controller.

Although the aforementioned tool holders are described using two groups as an example, in other embodiments, the number of tool holders may be more than two groups, such as three groups, four groups, or more, that is, the cutting blades on each tool holder The configuration direction is different. And the angle A1 and the angle A2 can be changed according to the number of tool holders, and are not limited to 180 degrees. For example, if the number of tool holders in an embodiment is four groups, the angle A1 and the angle A2 can be 90 degrees.

FIG. 3A is an external view of a machine tool 200 according to an embodiment of the present invention. The machine tool 200 includes a tool transport device 100, a tool holder 210, a tool chuck 220 (not shown in FIG. 3A), a platform 230, and an operating mechanism. The operation mechanism includes, for example, a first operation element 240, a second operation element 250, a third operation element 260, and a fourth operation element 270.

The location of the knife transport device 100 in FIG. 3A is, for example, the cutting blade replacement position P1, which is substantially on the edge of the platform 230, which is convenient for the operator to replace the cutting blade.

The tool transport device 100 further includes a first carrier plate 160 and a second carrier plate 165 which are oppositely disposed, which are respectively located on opposite sides of the platform 230 and are connected to the first operating element 240 through a first transmission mechanism (not shown). To be controlled by the first operating element 240. By rotating the first operating element 240, the first transmission mechanism can be driven to drive the tool transport device 100 to perform a translational movement, such as moving between the cutting blade replacement position P1, the intermediate position P2, and the receiving position P3. In an embodiment, the first operating element 240 is, for example, a hand wheel, and the first transmission mechanism is, for example, a pulley set.

In addition, the tool transporting device 100 further includes a positioning member 170 that can be inserted into a rotation shaft (not shown) hole of the tool carrier 110. In this way, during the translation process of the tool holder carrier 110, the tool holder carrier 110 can be prevented from shaking or even rotating, and thus the first tool holder 120 and the second tool holder 140 assembled thereon can be shaken or even rotated and exchanged freely. position.

The second operating element 250 drives the tool holder carrier 110 of the tool transport device 100 to rotate through a second transmission mechanism (not shown), so as to drive the first tool holder 120 and The second knife holder 140 is turned upside down. By rotating the second operating element 250, the second transmission mechanism can be driven to rotate the knife holder stage 110 to rotate. In an embodiment, the second operating element 250 is, for example, a hand wheel, and the second transmission mechanism is, for example, a gear set.

As shown in FIG. 3A, the third operation element 260 can drive the tool holder 210 to perform a translational movement, and the fourth operation element 270 can drive the tool holder 210 to rotate.

For example, please refer to FIGS. 3B and 3C. FIG. 3B shows a schematic diagram of the mechanism connecting the third operation element 260 and the knife holder 210 in FIG. 3A, and FIG. A schematic diagram of the mechanism with the knife holder 210.

As shown in FIG. 3B, the machine tool 200 further includes a first transmission shaft 261, a gear set 262, a chain 263, a second transmission shaft 264, a first gear 265, and a rack 266, wherein the first transmission shaft 261 is connected to the third operation The element 260 is connected to the gear set 262. The two gears of the gear set 262 are connected through a chain 263. The second transmission shaft 264 connects the gear set 262 and the first gear 265. The first gear 265 meshes with the rack 266, and the rack 266 is disposed at接 刀 座 210。 The knife holder 210. In this way, by operating the third operating element 260, the first transmission shaft 261, the gear set 262, the second transmission shaft 264, and the first gear 265 can be driven to rotate, so as to drive the rack 266 to translate in the +/- Y axis The movement further drives the tool holder 210 to perform translational movement along the +/- Y axis.

As shown in FIG. 3C, the machine tool 200 further includes a third transmission shaft 271, a second gear 272, a third gear 273, and a fourth transmission shaft 274. The third transmission shaft 271 connects the fourth operating element 270 and the second gear. 272, the second gear 272 It meshes with the third gear 273, and the fourth transmission shaft 274 connects the third gear 273 and the knife holder 210. In this way, by operating the fourth operation element 270 to rotate about the + X axis, the third transmission shaft 271, the second gear 272, the third gear 273, and the fourth transmission shaft 274 can be driven to rotate, and then the tool holder 210 is driven. Rotate around the -X axis (clockwise viewed from Figure 1D or 2G).

In summary, although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.

100‧‧‧ Tool transport device

110‧‧‧ knife carrier

120‧‧‧The first knife seat

130‧‧‧The first cutting knife

140‧‧‧Second knife holder

150‧‧‧Second cutting knife

210‧‧‧ knife holder

211‧‧‧Insertion lever

220‧‧‧tool chuck

1A (b) -1A (b) ’‧‧‧ Section direction

P1‧‧‧Cutting knife replacement position

X, Y, Z‧‧‧ axial

Claims (17)

A tool changing method comprises: providing a tool transporting device, the tool transporting device is equipped with a first tool holder, a first cutting knife is clamped on the first tool holder, and a tool receiving device is provided on the tool transporting device; Grasp the first tool holder; rotate the tool holder by an angle so that the first cutting knife on the tool holder is changed from upward to downward; and move the tool holder to a tool chuck, The first tool holder is assembled on the tool chuck. The tool changing method according to item 1 of the patent application scope, wherein the tool holder includes an insertion rod, the first tool holder has an insertion hole, and the first tool holder is grasped from the tool transport device. In the step of receiving, the knife receiving seat is inserted into the insertion hole through the insertion rod to grasp the first knife receiving seat. The tool changing method according to item 2 of the scope of patent application, wherein in the step of the tool holder grasping the first tool holder, a pressure source provides a clamping force to the insertion rod to fix the first tool. The relative position between the seat and the knife receiving seat, and / or the shape of the insertion rod and the insertion hole substantially coincides. The tool changing method according to item 1 of the scope of patent application, wherein the tool transport device is equipped with a second tool holder, and a second cutting knife is clamped on the second tool holder, Wherein, the arrangement direction of the first cutting blade is different from that of the second cutting blade; the method for changing the tool further includes: the tool receiving holder grasps the first tool holder from the tool chuck; A tool holder is transmitted to the tool transport device; the tool transport device is moved to an intermediate position; in the intermediate position, the second tool holder is rotated so that the second cutting knife faces upward; the tool transport device is moved to a A knife position; at the knife receiving position, the knife receiving holder grabs the second knife holder from the tool transport device; and moves the knife receiving holder to the tool chuck to assemble the second knife holder to the tool Chuck. The tool changing method described in item 4 of the scope of patent application, further comprising: moving the tool transporting device to a cutting knife replacement position; removing the first cutting knife from the tool transporting device; and replacing another first A cutting knife is on the first knife seat. The knife changing method described in item 4 of the patent application scope, wherein the intermediate position is between the knife receiving position and a cutting knife changing position. A machine tool includes: a cutter transport device including: A first knife holder; and a first cutting knife held on the first knife holder; a knife holder for grasping the first knife holder; and an operation mechanism connected to the knife transport device For translating the cutter transport device to a knife receiving position or a cutting knife replacement position, and / or for translating and rotating the knife receiving seat; wherein the knife receiving seat is allowed to rotate at an angle to make the knife receiving seat The first cutting blade is changed from upward to downward. The machine tool according to item 7 of the patent application scope, wherein the tool holder includes an insertion rod, and the first tool holder has an insertion hole. The machine tool according to item 8 of the scope of application for a patent, wherein the shape of the insertion rod and the insertion hole substantially coincide. The machine tool according to item 8 of the patent application scope further includes: a pressure source that provides a clamping force to the insertion rod to fix the relative position between the first tool holder and the tool holder. The machine tool according to item 7 of the scope of patent application, wherein the tool transport device is equipped with a second tool holder, and a second cutting knife is clamped on the second tool holder; the operation mechanism is further used for: Moving the tool transport device to an intermediate position; in the intermediate position, rotating the second tool holder so that the second tool faces upwards; and moving the tool transport device to the knife receiving position. The machine tool according to item 7 of the scope of patent application, wherein the tool transport device is located at a knife receiving position when it is adjacent to the knife receiving seat, and the intermediate position is between the knife receiving position and the cutting knife replacement position. The machine tool according to item 7 of the scope of patent application, wherein the operating mechanism includes: an operating element including: a first transmission shaft; a gear set; a chain; a second transmission shaft; a first gear; and A rack; wherein the first transmission shaft connects the operating element with the gear set, the gear set is connected through the chain, the second transmission shaft connects the gear set with the first gear, and the first gear meshes with the tooth And the rack is arranged on the tool holder. The machine tool according to item 7 of the scope of patent application, wherein the operating mechanism It includes: an operating element, including: a third transmission shaft; a second gear; a third gear; and a fourth transmission shaft; wherein the third transmission shaft connects the operation element and the second gear, the first Two gears are meshed with the third gear, and the fourth transmission shaft connects the third gear with the knife receiving seat. The machine tool according to item 7 of the scope of patent application, wherein the tool transport device further includes a tool holder carrier, the tool holder carrier has an insertion portion, and the first tool holder has a first insertion hole, wherein The shape of the insertion portion substantially matches the shape of the first insertion hole. According to the machine tool described in claim 7 of the scope of patent application, the tool transport device further includes a positioning member and is inserted into the tool carrier. The machine tool according to item 7 of the scope of patent application, wherein the first cutter seat is provided with a plurality of the first cutting blades, and / or the first cutting blades are strip-shaped blades or blades or cutting Knife mold.