TWI835582B - Processing device - Google Patents

Abstract

A processing device includes a first capstan, a second capstan, a first cutter and a second cutter. The first capstan has a first side surface, a first surface and a second surface. The first surface is opposite to the second surface, and the first side surface is located between the first surface and the second surface. The second capstan is dispose on the first surface. The second capstan has a third surface and a second side surface. The third surface is facing to the first surface, and the second side surface is connected to the third surface. The first cutter is disposed on the first capstan and has a first processing end protruding from the first side surface. The second cutter is disposed on the second capstan and has a second processing end protruding from the second side surface. On an axis of the first capstan, the first processing end and the second processing end are offset from each other.

Description

Processing equipment

The present invention relates to a manufacturing device, in particular to a processing device.

With the development of modern technology, compared with traditional precision machining, the accuracy of ultraprecision machining has improved by at least one order of magnitude. Furthermore, ultra-precision machining has special requirements for workpiece material, processing equipment, tools, measurement and environmental conditions. For example. The material of the workpiece must be extremely fine and uniform, the processing device needs to have extremely high movement accuracy, and the processing environment must mostly maintain constant temperature, constant humidity and clean air to ensure that the processing error can be controlled at least to about 0.1 microns.

Generally speaking, most of the conventional processing devices are equipped with a cutterhead, and the cutterhead is equipped with a cutting tool. However, the number of tools in the conventional processing device is limited because the space of the cutterhead for fixing the tools is limited. Therefore, conventional processing devices often require frequent tool replacement, resulting in delays in the processing schedule.

The present invention provides a processing device to provide more space for arranging cutting tools.

The processing device provided by the invention includes a first cutterhead, a second cutterhead, a first cutter and a second cutter. The first cutterhead has a first side, a first surface and a second surface. The first surface and the second surface are opposite, and the first side is located between the first surface and the second surface. The second cutterhead is disposed on the first surface. The second cutterhead has a third surface and a second side. The third surface faces the first surface, and the second side is connected to the third surface. The first tool is disposed on the first cutterhead and has a first processing end protruding from the first side surface. The second tool is disposed on the second cutterhead and has a second processing end protruding from the second side surface. In the axial direction of the first cutter head, the first processing end and the second processing end are offset from each other.

In an embodiment of the present invention, the above-mentioned first surface may have a first positioning structure. The second cutterhead may have two second positioning structures corresponding to the two first positioning structures, and the second cutterhead is disposed on the first surface via the two second positioning structures and the two first positioning structures.

In an embodiment of the present invention, the two first positioning structures include, for example, two first positioning holes, and the two second positioning structures may include two first positioning posts corresponding to the two first positioning holes.

In an embodiment of the present invention, the above-mentioned processing device further includes, for example, a third cutterhead and a third tool. The third cutterhead has a fourth surface and a third side. The fourth surface faces the second surface, and the third side is connected to the fourth surface. The third tool is disposed on the third cutterhead and has a third processing end protruding from the third side surface. The first processing end, the second processing end and the third processing end are axially offset from each other.

In an embodiment of the present invention, the two first positioning structures are arranged along the first radial direction of the first cutterhead. The second surface has, for example, two third positioning structures. The two third positioning structures are arranged along the second radial direction of the first cutterhead, and the second radial direction and the first radial direction are staggered. The third cutterhead may have two fourth positioning structures corresponding to the two third positioning structures, and the third cutterhead is disposed on the second surface via the two third positioning structures and the two fourth positioning structures.

In an embodiment of the present invention, the two first positioning structures may include two first positioning holes, and the two second positioning structures may include two first positioning posts corresponding to the two first positioning holes. The two third positioning structures may include two second positioning posts, and the second fourth positioning structure may include two second positioning holes corresponding to the two second positioning posts.

In one embodiment of the present invention, the above-mentioned first cutter is disposed along the circumferential direction of the first cutterhead and surrounds the two first positioning structures. The second cutter may be disposed along the circumference of the second cutterhead and surround the two second positioning structures. The third cutter can be disposed along the circumferential direction of the third cutterhead and surrounds the two fourth positioning structures.

In an embodiment of the present invention, the above-mentioned processing device may further include a first fixing component. The second surface has a groove, and the third surface has a first rib corresponding to the groove. The first fixing piece passes through the first surface from the groove and extends into the first rib.

In an embodiment of the present invention, the above-mentioned first fixing member may have a connected head part and a rod part. The head is embedded in the first cutterhead from the second surface. The stem extends through the first surface and into the first rib.

In an embodiment of the present invention, the above-mentioned second surface also has a slot, and the first tool is fixed in the slot. The sipe is spaced apart from the groove in the circumferential direction of the first cutter disc, and the second surface is formed with a second rib between the groove and the sipe. The sipe has a first width in the circumferential direction, the second rib has a second width in the circumferential direction, and the second width is greater than or equal to the first width.

In an embodiment of the present invention, the above-mentioned processing device may further include a second fixing member, and the second fixing member is penetrated through the second rib. The first tool is fixed in the tool groove through the second fixing part.

In an embodiment of the present invention, the above-mentioned sipe groove has a depth in the axial direction, and the depth is, for example, equal to the first width.

In an embodiment of the present invention, the above-mentioned processing device further includes a fixing member, for example. The second surface has a groove, and the second tool corresponds to the groove. The retaining member passes from the groove through the first surface and extends into the second cutter.

In an embodiment of the present invention, the above-mentioned processing device may further include a cutter cover, and the first cutter head is sandwiched between the cutter cover and the second cutter head.

In an embodiment of the present invention, the above-mentioned processing device further includes a tool holder, for example. The cutter cover has a surface facing away from the first cutter head, and the cutter seat is arranged on the surface.

The processing device of the present invention uses a first cutterhead and a second cutterhead that overlap each other, and the first cutter and the second cutter are staggered with each other, so that the first processing end and the second processing end are in the axial direction of the first cutterhead. misaligned with each other. Based on the above, the processing device of the present invention can provide more space for setting tools, which not only increases the number of tools, but also provides a variety of tool settings with different specifications. Therefore, the processing device of the present invention can not only reduce the time cost required for maintenance and avoidance of delaying the processing schedule, but also has the advantage of good expandability.

In order to make the above and other objects, features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram of a processing device according to an embodiment of the present invention. FIG. 2 is a schematic view of the first cutterhead and the second cutterhead of FIG. 1 separated. FIG. 3 is a schematic top view of the processing device of FIG. 1 . FIG. 4 is a schematic side view of the processing device of FIG. 1 .

Please refer to FIGS. 1 and 2 . The processing device 100 includes a first cutterhead 110 , a second cutterhead 120 , a first tool 130 and a second tool 140 . The first cutterhead 110 has a first side 111 , a first surface 112 and a second surface 113 . The first surface 112 and the second surface 113 are opposite, and the first side 111 is located between the first surface 112 and the second surface 113 . The second cutterhead 120 is disposed on the first surface 112 . The second cutterhead 120 has a third surface 121 and a second side 122 . The third surface 121 faces the first surface 112, and the second side 122 is connected to the third surface 121. The first cutter 130 is disposed on the first cutter head 110 and has a first processing end 131 protruding from the first side 111 . The second cutter 140 is disposed on the second cutter head 120 and has a second processing end 141 protruding from the second side 122 . In the axial direction A of the first cutter head 110 (also marked in FIG. 3 ), the first processing end 131 and the second processing end 141 are offset from each other.

The first cutterhead 110 and the second cutterhead 120 are both disk-shaped, for example, and the second cutterhead 120 can be overlapped with the first cutterhead 110 along the axial direction A of the first cutterhead 110 . Furthermore, the first cutterhead 110 and the second cutterhead 120 can be substantially coaxially disposed and can be disposed together on the machine axis of the processing machine, but the present invention does not limit the application of the processing device 100 .

Please refer to Figures 2 and 3. In this embodiment, the first surface 112 (marked in Figure 2) can have two first positioning structures 1120, wherein the two first positioning structures 1120 in this embodiment are formed by two first positioning holes H1 Example; furthermore, the two first positioning holes H1 are, for example, perforations passing through the first surface 112 and the second surface 113, but the present invention does not limit the specific features of the two first positioning structures 1120. In this embodiment, the second cutterhead 120 may have two second positioning structures 123 corresponding to the two first positioning structures 1120, and the second cutterhead 120 is disposed on the First surface 112. To be specific, the two first positioning structures 1120 are arranged around the axial direction A of the first cutterhead 110 , for example. On the other hand, the shapes of the two second positioning structures 123 may be complementary to the shapes of the two first positioning structures 1120 , and the positions of the two second positioning structures 123 may correspond to the positions of the two first positioning structures 1120 . In this way, the two first positioning structures 1120 can be combined with the two second positioning structures 123, so that the first cutterhead 110 and the second cutterhead 120 are overlapped with each other and can be substantially coaxially arranged. In detail, as mentioned above, the two first positioning structures 1120 may include two first positioning holes H1, and the second second positioning structures 123 may include two first positioning posts P1 corresponding to the two first positioning holes H1. In this way, by aligning the two first positioning posts P1 of the second cutterhead 120 and extending into the two first positioning holes H1 of the first cutterhead 110, the second cutterhead 120 can be overlapped with the first cutterhead 110. First surface 112. Incidentally, in this embodiment, the first cutterhead 110 and the second cutterhead 120 are, for example, two cutterheads formed using the same mold, and are further connected by two first positioning structures 1120 and two second positioning structures 123 The position design enables the first cutter 130 and the second cutter 140 to be offset from each other in the axial direction A.

In this embodiment, the first cutter 130 and the second cutter 140 are, for example, diamond cutters, but the invention is not limited thereto. In addition, the first processing end 131 is, for example, the end where the first tool 130 processes the workpiece. In this embodiment, it is shown as the tip of the first tool 130 , but other embodiments are not limited thereto. Similarly, the second processing end 141 is, for example, the end where the second tool 140 processes the workpiece. In this embodiment, it is shown as the tip of the second tool 140 , but the invention is not limited thereto. The first cutter 130 in this embodiment is, for example, disposed along the circumferential direction C (shown in FIG. 3 ) of the first cutterhead 110 and surrounds the two first positioning structures 1120 . The second cutter 140 may be disposed along the circumferential direction C of the second cutterhead 120 and surround the two second positioning structures 123 . Specifically, the first cutter 130 may be disposed along the edge of the second surface 113 and surround the axial direction A of the first cutterhead 110 together with the two first positioning structures 1120 and the two third positioning structures 1130 . Similarly, the second cutter 140 may be disposed along the edge of the third surface 121 and surround the axial direction A of the first cutterhead 110 together with the two second positioning structures 123 .

Compared with the conventional technology, the processing device 100 of this embodiment uses a first cutterhead 110 and a second cutterhead 120 that are superimposed on each other, and the first processing end 131 and the second processing end 141 are on the first cutterhead 110 . are misaligned with each other in the axial direction A. Based on the above, the processing device 100 of this embodiment can provide more space for setting tools, which not only increases the number of tools, but also provides a variety of tool settings with different specifications. Therefore, the processing device 100 of this embodiment can not only reduce the time cost required for maintenance and avoidance of delaying the processing schedule, but also has the advantage of good scalability.

Please refer to FIGS. 2 and 4 . Incidentally, the processing device 100 may also include a first fixing member 150 . The second surface 113 has a groove G1, and the third surface 121 has a first rib 1210 corresponding to the groove G1. The first fixing member 150 passes through the first surface 112 from the groove G1 and extends into the first rib 1210 to further fix the first cutterhead 110 and the second cutterhead 120 . Specifically, the groove G1 can reduce the local thickness of the first cutterhead 110 so that the first fixing member 150 can pass through. In addition, as shown in FIG. 3 , the first rib 1210 can overlap the groove G1 in the axial direction A of the first cutterhead 110 so that the end of the first fixing member 150 can be inserted and fixed. Please refer to FIG. 4 again. Furthermore, the first fixing member 150 may have a connected head portion 151 and a rod portion 152 . The head 151 is embedded in the first cutterhead 110 from the second surface 113 . The stem 152 passes through the first surface 112 and extends into the first rib 1210 . In this way, the first fixing member 150 can be further prevented from loosening due to external force, and the first cutterhead 110 and the second cutterhead 120 can be fixed more firmly. In this embodiment, the first fixing member 150 may be a screw, but the invention is not limited thereto.

Please refer to FIGS. 2 and 3 together. For example, the second surface 113 of this embodiment also has a slot G2, and the first tool 130 is fixed in the slot G2. The groove G2 is spaced apart from the groove G1 in the circumferential direction C of the first cutter head 110, and the second surface 113 is formed with a second rib 1121 between the groove G1 and the groove G2 (also marked in Figure 4) . As shown in FIG. 3 , the sipe G2 has a first width W1 in the circumferential direction C, and the second rib 1121 has a second width W2 in the circumferential direction C. The second width W2 is greater than or equal to the first width W1. Specifically, because the first cutter 130 is fixed between two adjacent second ribs 1121 , the second ribs 1121 can have basic structural strength to further enhance the durability of the first cutterhead 110 . In one embodiment, the first width W1 of the slot G2 is, for example, approximately between 6 mm and 20 mm, and the second width W2 of the second rib 1121 may be approximately between 6 mm and 20 mm. However, the present invention does not allow this. Make more restrictions. Incidentally, in this embodiment, the second cutter 140 is fixed between two adjacent first ribs 1210, so the width condition of the first rib 1210 can be similar to the width condition of the second rib 1121, but in this embodiment The invention places no further restrictions on this.

Please refer to FIG. 2 and FIG. 4 again, the processing device 100 may further include a second fixing part 160 , and the second fixing part 160 is inserted through the second rib 1121 . The first tool 130 is fixed in the tool groove G2 via the second fixing part 160 . Specifically, the second fixing member 160 can extend from the groove G1 through the second rib 1121 and into the slot G2 to fix the first cutter 130 . In this embodiment, the second fixing member 160 is, for example, a screw, and the head of the screw can be embedded in the second rib 1121 to prevent loosening. It can be appreciated that the second cutterhead 120 can secure the second cutter 140 in a similar manner to the first cutterhead 110 . Incidentally, the groove G2 has a depth D in the axial direction A, and the depth D is equal to the first width W1, for example. Simply put, the depth D and the first width W1 of the slot G2 can be designed according to the size of the second fixing member 160 and the structural strength requirements of the first cutterhead 110 . In one embodiment, the depth D of the slot G2 may be approximately 6 mm to 20 mm. In another embodiment, the depth D of the groove G1 may be slightly greater than half of the depth D of the groove G1 , for example, approximately between 3 mm and 13 mm, but the present invention does not limit this.

Incidentally, the processing device 100 further includes a fixture F, for example. The second tool 140 may correspond to the groove G1. The fixing piece F passes through the first surface 112 from the groove G1 and extends into the second cutter 140 . In this way, the first cutter head 110 and the second cutter head 120 can be further fixed, and the second cutter 140 can also be further fixed. In detail, the orthographic projection of one of the second cutters 140 on the second surface 113 overlaps the groove G1 , and the fixing member F can pass through the first cutter disc 110 and extend into the second cutter 140 . Similarly, the portion of the fixing member F located outside the second cutter 140 can be embedded in the first cutter head 110 to prevent it from falling off from the first cutter head 110 .

Figure 5 is a schematic diagram of a processing device according to another embodiment of the present invention. Fig. 6 is a schematic diagram of the first cutterhead, the second cutterhead and the third cutterhead of Fig. 5 being separated. FIG. 7 is a schematic top view of the processing device of FIG. 5 . The structure and advantages of the processing device 100a of this embodiment are similar to the embodiment of FIG. 1, and only the differences will be described below. Please refer to FIGS. 5 and 6 . The processing device 100a further includes a third cutterhead 170 and a third tool 180 , for example. The third cutterhead 170 has a fourth surface 171 and a third side 172 . The fourth surface 171 faces the second surface 113 (marked in FIG. 6 ), and the third side 172 is connected to the fourth surface 171 . The third cutting tool 180 is disposed on the third cutter head 170 and has a third processing end 181 protruding from the third side 172 . The first processing end 131 , the second processing end 141 and the third processing end 181 are offset from each other in the axial direction A. In short, the second cutterhead 120 and the third cutterhead 170 can be disposed on opposite sides of the first cutterhead 110, which can further increase the number of tools of the processing device 100a.

Furthermore, as shown in FIGS. 6 and 7 , the two first positioning structures 1120 are arranged along the first radial direction R1 of the first cutterhead 110 . The two second positioning structures 123 are arranged along the second radial direction R2 of the first cutterhead 110, and the second radial direction R2 and the first radial direction R1 are staggered. The third cutterhead 170 may also have two fourth positioning structures 173 corresponding to the two second positioning structures 123 , and the third cutterhead 170 is disposed on the second surface 113 via the two second positioning structures 123 and the two fourth positioning structures 173 . In detail, the first cutterhead 110 , the second cutterhead 120 and the third cutterhead 170 can be three cutterheads formed by the same mold, and by connecting the first radial direction R1 between the two first positioning structures 1120 and the second radial direction R2 between the two second positioning structures 123 are arranged to stagger each other, so that the first processing end 131, the second processing end 141 and the third processing end 181 can be misaligned with each other in the axial direction A. Furthermore, the first cutterhead 110 , the second cutterhead 120 and the third cutterhead 170 can be substantially coaxially arranged, and the second radial direction R2 and the first radial direction R1 can intersect with the axial direction of the first cutterhead 110 A. Please continue to refer to FIG. 6. In this embodiment, the second fourth positioning structure 173 may include two second positioning holes H2 corresponding to the two second positioning posts P2, but the present invention does not limit this. By the way, the third cutting tool 180 can be disposed along the circumferential direction C (also marked in FIG. 7 ) of the third cutter head 170 and surround the two fourth positioning structures 173 so that the third processing end 181 protrudes from the third side 172 out.

FIG8 is a schematic diagram of a processing device of another embodiment of the present invention. FIG9 is a schematic diagram of the first cutter disc, the second cutter disc, the third cutter disc and the cutter cover of FIG8 being separated. The structure and advantages of the processing device 100b of this embodiment are similar to those of the embodiment of FIG1 , and only the differences are described below. Referring to FIG8 and FIG9 , the processing device 100b may further include a cutter cover 190, and the first cutter disc 110 is sandwiched between the cutter cover 190 and the second cutter disc 120, and the cutter cover 190 can further prevent the first cutter 130 or the third cutter 180 from falling off. For example, in this embodiment, the first blade disc 110 is located between the third blade disc 170 and the second blade disc 120, the third cutter 180 is disposed on the surface 174 (marked in FIG. 9 ) of the third blade disc 170 facing away from the first blade disc 110, and the blade cover 190 covers the surface 174. In this way, the blade cover 190 can further prevent the third cutter 180 from falling off the third blade disc 170. In addition, please refer to FIG. 1 and FIG. 8 together. In the embodiment of FIG. 1 , the blade cover 190 can cover the second surface 113 of the first blade disc 110 to further prevent the first cutter 130 from falling off the first blade disc 110. By the way, please continue to refer to FIG8 , the blade cover 190 of this embodiment can be locked to the third blade disc 170 via a screw SC, and the head of the screw SC can be embedded in the blade cover 190 to prevent the screw SC from loosening due to external force. In the embodiment of FIG1 , the blade cover 190 can be locked to the first blade disc 110 via a screw SC, and the features of the screw SC are similar to those of this embodiment, and the relevant description is omitted here.

Figure 10 is a schematic diagram of a processing device according to another embodiment of the present invention. FIG. 11 is a schematic diagram of the tool holder of FIG. 10 exposing the tool. The structure and advantages of the processing device 100c of this embodiment are similar to the embodiment of FIG. 8 , and only the differences will be described below. Referring to FIGS. 10 and 11 , the processing device 100c further includes a tool holder B, for example. The cutter cover 190 has a surface 191 facing away from the first cutter head 110 , and the cutter seat B is disposed on the surface 191 . Specifically, the tool holder B can be provided with the tool N (shown in FIG. 11 ), thereby further increasing the number of tools of the processing device 100c. It is worth mentioning that the tool holder B can be configured with tools N that are different in specifications, shapes or sizes from the first tool 130, the second tool 140 and the third tool 180, thus further improving the scalability of the processing device 100c.

To sum up, the processing device of the present invention uses a first cutterhead and a second cutterhead that overlap each other, and the first processing end and the second processing end are offset from each other in the axial direction of the first cutterhead. Based on the above, the processing device of the present invention can provide more space for setting tools, which not only increases the number of tools, but also provides a variety of tool settings with different specifications. Therefore, the processing device of the present invention can not only reduce the time cost required for maintenance and avoidance of delaying the processing schedule, but also has the advantage of good expandability.

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make some modifications 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 appended patent application scope.

100, 100a, 100b, 100c: processing device

110:The first cutterhead

111:First side

112: First surface

113: Second surface

120: Second cutterhead

121:Third surface

122:Second side

123: Second positioning structure

130:The first tool

131: First processing end

140:Second tool

141: Second processing end

150:First fixing piece

151:Head

152: Rod

160:Second fixing piece

170:Third cutterhead

171:Fourth surface

172:Third side

173: The fourth positioning structure

174, 191: Surface

180:Third tool

181: The third processing end

190:Knife cover

1120: First positioning structure

1121:Second rib

1130:Third positioning structure

1210:First rib

A:Axis

B: Knife holder

C: circumferential direction

D: Depth

F: Fixing parts

G1: Groove

G2: Knife groove

H1: first positioning hole

H2: Second positioning hole

N: cutter

P1: first positioning post

P2: Second positioning post

R1: first radial

R2: second radial

SC: screw

W1: first width

W2: second width

Figure 1 is a schematic diagram of a processing device according to an embodiment of the present invention. FIG. 2 is a schematic view of the first cutterhead and the second cutterhead of FIG. 1 separated. FIG. 3 is a schematic top view of the processing device of FIG. 1 . FIG. 4 is a schematic side view of the processing device of FIG. 1 . Figure 5 is a schematic diagram of a processing device according to another embodiment of the present invention. Fig. 6 is a schematic diagram of the first cutterhead, the second cutterhead and the third cutterhead of Fig. 5 being separated. FIG. 7 is a schematic top view of the processing device of FIG. 5 . Figure 8 is a schematic diagram of a processing device according to another embodiment of the present invention. FIG. 9 is a schematic diagram of the first cutterhead, the second cutterhead, and the third cutterhead of FIG. 8 separated from the cutter cover. Figure 10 is a schematic diagram of a processing device according to another embodiment of the present invention. FIG. 11 is a schematic diagram of the tool holder of FIG. 10 exposing the tool.

100:Processing device

110:The first cutterhead

111:First side

112: First surface

113: Second surface

120: Second cutterhead

121:Third surface

122:Second side

130:The first tool

131: First processing end

140:Second tool

141: Second processing end

A:Axis

Claims (14)

A processing device includes: a first cutterhead having a first side, a first surface and a second surface, the first surface and the second surface are opposite, and the first side is located between the first surface and the second surface. Between the second surfaces; a second cutterhead is disposed on the first surface, the second cutterhead has a third surface and a second side, the third surface faces the first surface, and the second cutterhead The side is connected to the third surface; a first cutter is provided on the first cutterhead and has a first processing end protruding from the first side; and a second cutter is provided on the second cutterhead. , and has a second processing end protruding from the second side; wherein in an axial direction of the first cutterhead, the first processing end and the second processing end are offset from each other; wherein the first surface has two The first positioning structure, the second cutterhead further has two second positioning structures corresponding to the two first positioning structures, and the second cutterhead is arranged on the second positioning structure through the two second positioning structures and the two first positioning structures. A surface. The processing device according to claim 1, wherein the two first positioning structures include two first positioning holes, and the two second positioning structures include two first positioning posts corresponding to the two first positioning holes. The processing device as claimed in claim 1, further comprising a third cutterhead and a third tool, wherein the third cutterhead has a fourth surface and a third side surface, and the fourth surface faces the second surface, The third side is connected to the fourth surface, the third cutter is disposed on the third cutterhead, and has a A third processing end protrudes from the side, and the first processing end, the second processing end and the third processing end are offset from each other in the axial direction. The processing device according to claim 3, wherein: the two first positioning structures are arranged along a first radial direction of the first cutterhead; the second surface has two third positioning structures, and the two third positioning structures are arranged along a first radial direction of the first cutterhead. The first cutterhead is arranged in a second radial direction, and the second radial direction and the first radial direction are staggered; the third cutterhead has two fourth positioning structures corresponding to the two third positioning structures, and the third The three cutterheads are arranged on the second surface through the two third positioning structures and the two fourth positioning structures. The processing device according to claim 4, wherein the two first positioning structures include two first positioning holes, the two second positioning structures include two first positioning posts corresponding to the two first positioning holes, and the two third positioning The structure includes two second positioning posts, and the two fourth positioning structures include two second positioning holes corresponding to the two second positioning posts. The processing device according to claim 4, wherein the first tool is arranged along the circumferential direction of the first cutterhead and surrounds the two first positioning structures, and the second tool is arranged along the circumferential direction of the second cutterhead, And surrounding the two second positioning structures, the third cutter is arranged along the circumference of the third cutter head and surrounds the two fourth positioning structures. The processing device according to claim 1, further comprising a first fixing member, wherein the second surface has a groove, the third surface has a first rib corresponding to the groove, and the first fixing member is from The groove passes through the first surface and extends into the first rib. The processing device as claimed in claim 7, wherein the first fixing member has a connected head and a rod, the head is embedded in the first cutterhead from the second surface, and the rod passes through the The first surface extends into the first rib. The processing device as claimed in claim 7, wherein the second surface further has a slot, the first tool is fixed in the slot, and the slot is spaced apart from the groove in a circumferential direction of the first cutter disc, And the second surface forms a second rib between the groove and the sipe, the sipe has a first width in the circumferential direction, and the second rib has a second width in the circumferential direction, The second width is greater than or equal to the first width. The processing device as claimed in claim 9, further comprising a second fixing component passing through the second rib, wherein the first tool is fixed in the tool groove via the second fixing component. The processing device of claim 9, wherein the tool groove has a depth in the axial direction, and the depth is equal to the first width. The processing device according to claim 1, further comprising a fixing member, wherein the second surface has a groove, the second tool corresponds to the groove, the fixing member passes through the first surface from the groove, and Insert the second tool. The processing device of claim 1 further includes a cutter cover, wherein the first cutter head is sandwiched between the cutter cover and the second cutter head. The processing device according to claim 13, further comprising a tool holder, wherein the tool cover has a surface facing away from the first cutter disc, and the tool holder is disposed on the surface.

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