Machining tool

Abstract

The invention relates to the technical field of product machining, in particular to a machining cutter which comprises a cutter handle, a cutter head arranged at the lower end of the cutter handle, a first cutting unit arranged on the cutter head and a first dynamic balance adjusting mechanism and / or a second dynamic balance adjusting mechanism. The first dynamic balance adjusting mechanism comprises a plurality of first adjusting pieces distributed on the periphery of the cutter handle in the circumferential direction, and the second dynamic balance adjusting mechanism comprises a plurality of second adjusting pieces distributed on the periphery of the cutter head in the circumferential direction. According to the machining tool, the dynamic balance of the tool can be adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of product processing, in particular to a processing tool. Background Art

[0002] In flat machining tools, especially those used for large-area machining, the planar or radial dimensions of the tool are much smaller than the planar surface area. Consequently, multiple passes are often required during machining, which can easily lead to tool marks on the product surface and reduce yield. Using tools with planar dimensions or diameters larger than the product surface can address this issue, but large tools are prone to unstable dynamic balance and tool drop issues due to their heavy weight. Therefore, finding a lightweight, lightweight, large tool with adjustable dynamic balance has become a pressing technical challenge. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide a machining tool.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: providing a machining tool, including a tool handle, a cutter disc arranged at the lower end of the tool handle, and a first cutting unit arranged on the cutter disc, and also including a first dynamic balance adjustment mechanism and / or a second dynamic balance adjustment mechanism, the first dynamic balance adjustment mechanism includes a plurality of first adjustment parts circumferentially distributed on the periphery of the tool handle, and the second dynamic balance adjustment mechanism includes a plurality of second adjustment parts circumferentially distributed on the periphery of the cutter disc.

[0005] Furthermore, the first adjusting member includes a first adjusting hole provided on the knife handle along the radial direction of the knife handle and a matching first adjusting column, wherein the first adjusting column can adjust its position in the first adjusting hole in the radial direction; or the first adjusting member includes a first adjusting hole provided on the knife handle along the axial direction of the knife handle and a matching first adjusting column, wherein the first adjusting column can adjust its position in the first adjusting hole in the axial direction of the knife handle;

[0006] The second adjusting member includes a second adjusting hole and a matching second adjusting column arranged on the cutter disc along a radial direction, and the second adjusting column can adjust its position in the second adjusting hole along the radial direction; or, the second adjusting member includes a second adjusting hole and a matching second adjusting column arranged on the cutter disc along an axial direction, and the second adjusting column can adjust its position in the second adjusting hole along the axial direction of the cutter disc.

[0007] Furthermore, the lower end of the hilt is configured as an annular structure, and the plurality of first adjustment members are circumferentially distributed on the periphery of the annular structure.

[0008] Furthermore, the cutter disc has a cutter ring and a plurality of ribs formed in the hollow space of the cutter ring, the outer ends of the plurality of ribs are connected to the inner side surface of the cutter ring, and the inner ends converge at the center of the cutter ring to form a gathering part, and the gathering part is coaxially connected to the lower end of the cutter handle; the plurality of second adjustment parts are circumferentially distributed on the cutter ring.

[0009] Furthermore, the height of the inner end of the rib is higher than the height of the knife ring so that the height of the collecting portion is higher than the height of the knife ring; the knife ring and / or the ribs are all hollow structures.

[0010] Furthermore, the lower end of the knife handle is provided with a first groove with a notch facing downward, and the first groove defines the lower end of the knife handle as an annular structure; the gathering part is formed with a boss protruding and connected to the first groove and a supporting surface surrounding the outer periphery of the boss, and the supporting surface is used to support the lower end surface of the annular structure.

[0011] Furthermore, the first groove is a conical groove with the small end facing upward, and the groove wall is configured as an inclined wall inclined downward and outward; the boss is configured as a conical platform adapted to the conical groove, and the conical platform protrudes and is connected to the conical groove.

[0012] Furthermore, the collecting portion is provided with a first connecting hole extending vertically therethrough, the bottom of the first groove is provided with a second connecting hole coaxially connected to the first connecting hole, and the first connecting hole and the second connecting hole are connected together by a connecting bolt;

[0013] A second groove is formed upward on the lower side of the collecting portion, the lower end of the first connecting hole passes through the bottom of the second groove, and the depth of the second groove is greater than the height of the bolt cap of the connecting bolt.

[0014] Furthermore, the first cutting unit is arranged on the periphery of the cutter disc; the periphery of the cutter disc is also provided with at least one counterweight area, and the at least one counterweight area is used to assemble a counterweight piece adapted for the first cutting unit; the counterweight piece assembled at the at least one counterweight area is evenly spaced from the first cutting unit and is arranged around the periphery of the cutter disc.

[0015] Furthermore, the counterweight is configured as a second cutting unit adapted to the first cutting unit, and the distance between the cutting edge of the second cutting unit and the processing surface is different from the distance between the cutting edge of the first cutting unit and the processing surface.

[0016] The processing tool of the present invention has at least the following beneficial effects: (1) By providing a first dynamic balance adjustment mechanism at the lower end of the tool handle and / or providing a second dynamic balance adjustment mechanism on the cutter disc, the cutter disc of the processing tool can be configured as a cutter disc of larger size, and the larger cutter disc can be accurately dynamic balanced by the first dynamic balance adjustment mechanism and / or the second dynamic balance adjustment mechanism, ensuring that the dynamic balance of the cutter disc meets the requirements. When processing the processing surface of a product of corresponding size, the processing of the processing surface can be completed in one go, solving the problem of needing multiple cutters due to insufficient tool plane size, solving the problem of tool connection marks on the product surface due to multiple cutters, and improving the product yield. (2) Through the first dynamic balance adjustment mechanism and / or the second dynamic balance adjustment mechanism, the dynamic balance of different cutters detachable from the tool handle can be adjusted according to their own conditions, ensuring that the dynamic balance of each cutter disc meets the requirements. (3) The cutter disc is configured as a cutter ring and rib structure, which can reduce the weight of the cutter disc while ensuring the strength of the cutter disc. (4) The ribs are evenly distributed in the cutter ring, and the connection between them and the cutter ring is also evenly spaced around the cutter ring, increasing the strength of the connection. Placing the installation area of ​​the cutting unit and the counterweight at this connection ensures the installation strength and connection stability of the cutting unit and the counterweight. There is no need to add reinforcement parts to the installation area of ​​the cutting unit and the counterweight, which reduces both the weight of the cutter head and the structural complexity. (5) Since the collecting part is composed of multiple ribs, its strength meets the requirements. The collecting part can be directly configured as a connecting part that can be detachably connected to the lower end of the tool handle to ensure the connection strength between the cutter head and the tool handle. The collecting part is coaxial with the cutter head and is coaxial with the tool handle after being assembled on the tool handle to ensure that the axis does not deviate from the rotation center. (6) The conical first groove provided at the lower end of the tool handle can not only define an annular structure to facilitate the assembly of the first dynamic balance adjustment mechanism, but also provide guidance when assembling the collecting part. At the same time, when connecting the collecting part, the collecting part can be pressed tightly into the first groove to increase the connection strength and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a machining tool of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure from another perspective.

[0020] Figure 3 yes Figure 1 Cross-sectional view of AA in the figure.

[0021] Figure 4 yes Figure 1Schematic diagram of the structure of the middle cutter disc.

[0022] Figure 5 yes Figure 1 Exploded view of the central assembly area.

[0023] Figure 6 It is a longitudinal cross-sectional view at the counterweight area.

[0024] The accompanying drawings in this specification are numeraled as follows:

[0025] The handle 100; the annular structure 110; the first groove 120; the cutter disc 200; the cutter ring 210; the counterweight area 211; the assembly area 212; the assembly groove 213; the third screw hole 214; the third connecting hole 215; the third bolt 216; the fourth screw hole 217; the fourth bolt 218; the rib 220; the collecting portion 230; the boss 231; the abutting surface 232; the first connecting hole 233; the connecting bolt 234; the second groove 235; the first cutting unit 300; the first dynamic balancing adjustment mechanism 400; the first adjusting hole 410; the first adjusting column 420; the second dynamic balancing adjustment mechanism 500; the second adjusting hole 510; the second adjusting column 520; the counterweight block 600. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The following disclosure provides a variety of different embodiments or examples for implementing the different features of the present invention. Specific examples of components and arrangements will be described below to simplify the present invention. Of course, these are merely examples and are not intended to limit the present invention. For example, in the following description, forming a first component above or on a second component may include an embodiment in which the first component and the second component are in direct contact, and may also include an embodiment in which other components may be formed between the first component and the second component so that the first component and the second component are not in direct contact. In addition, the present invention may repeat reference symbols and / or characters in multiple instances. This repetition is for simplicity and clarity and does not, by itself, represent a relationship between the multiple embodiments and / or configurations.

[0028] Furthermore, spatially relative terms, such as "below," "beneath," "below," "above," and "upper," may be used herein to readily describe the relationship of one element or component to another element(s) or component(s) as illustrated in the figures. Spatially relative terms are intended to encompass various orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0029] In addition, the technical parts described in the present invention and the appended claims are mainly the technical parts improved by the present invention, which does not limit the object protected by the present invention to only having such technical parts. Other known necessary components (structures and / or methods) and / or non-essential components of the protected object other than the technical parts described in the present invention and the appended claims are not described in the present invention and the appended claims because they do not fall within the scope of improvement of the present invention. However, this does not mean that the object protected by the present invention does not have these known components.

[0030] See Figure 1 and Figure 2 , Figure 1 The structural diagram of the machining tool of the present invention is exemplarily shown. Figure 2 The structural schematic diagram of the machining tool of the present invention from another perspective is exemplarily shown. In the embodiment shown, the machining tool includes a tool holder 100, a cutter disc 200 arranged at the lower end of the tool holder 100, a first cutting unit 300 arranged on the cutter disc 200, a first dynamic balance adjustment mechanism 400 arranged at the periphery of the lower end of the tool holder 100, and a second dynamic balance adjustment mechanism 500 arranged at the periphery of the cutter disc 200. When the cutter disc 200 rotates, the centrifugal force imbalance will cause the cutter disc 200 to vibrate or shake, which may aggravate the wear of the tool and reduce the service life of the tool. The first dynamic balance adjustment mechanism 400 and the second dynamic balance adjustment mechanism 500 are both used to adjust the dynamic balance of the machining tool, and change the mass distribution of the tool by adjusting the counterweight and position, thereby effectively eliminating the centrifugal force imbalance when the tool rotates, reducing the vibration and shaking of the cutter disc 200, making the cutter disc 200 rotate more balanced, and reducing the probability of safety accidents such as flying cutters. In this embodiment, the simultaneous provision of the first dynamic balancing adjustment mechanism 400 and the second dynamic balancing adjustment mechanism 500 allows adjustment at two different positions in both the axial and radial directions, thereby increasing the number of adjustment angles and improving the accuracy of dynamic balancing adjustment. It will be appreciated by those skilled in the art that, in different embodiments, the machining tool may be configured with either the first dynamic balancing adjustment mechanism 400 or the second dynamic balancing adjustment mechanism 500, and this also falls within the scope of protection of the machining tool of the present invention.

[0031] The first dynamic balance adjustment mechanism 400 includes a plurality of first adjustment members distributed circumferentially around the periphery of the tool handle 100. The first adjustment members include a first adjustment hole 410 radially disposed on the tool handle 100 and a corresponding first adjustment column 420. The corresponding first adjustment column 420 may be one or more. Depending on the counterweight adjustment, first adjustment columns 420 of different masses may be replaced to adjust the balance, or the first adjustment column 420 may be moved within the first adjustment hole 410 to adjust the balance. The first adjustment column 420 is radially adjustable within the first adjustment hole 410. The first adjustment hole 410 may be configured as a first screw hole, and the first adjustment column 420 may be a first bolt threaded into the first screw hole. When adjusting the dynamic balance, the first bolt can be screwed in or out (one adjustment method) according to the adjustment requirements to change its radial position (change the distance of the first bolt from the rotation axis), thereby achieving the corresponding dynamic balance adjustment.

[0032] In another embodiment, the first adjustment member can also be configured to be arranged along the axial direction of the tool handle 100. That is, the first adjustment member includes a first adjustment hole 410 and a matching first adjustment column 420 arranged on the tool handle 100 along the axial direction of the tool handle 100. The first adjustment column 420 can adjust its position within the first adjustment hole 410 along the axial direction of the tool handle 100. Similarly, the first adjustment hole 410 can also be configured as a first screw hole, and the first adjustment column 420 is correspondingly configured as a first bolt screwed into the first screw hole. When adjusting the dynamic balance, the position of the first bolt can be adjusted upward or downward according to the adjustment requirements, so that the distance between the first bolt and the center of the connection between the tool handle 100 and the machining spindle changes, thereby achieving the corresponding dynamic balance adjustment.

[0033] The second dynamic balance adjustment mechanism 500 includes a plurality of second adjustment members distributed circumferentially around the periphery of the cutter disc 200. The second adjustment member includes a second adjustment hole 510 radially arranged on the cutter disc 200 and a matching second adjustment column 520. The second adjustment column 520 can be adjusted radially within the second adjustment hole 510. The matching second adjustment column 520 can be one or more. Depending on the counterweight adjustment, the second adjustment column 520 of different masses can be replaced to adjust the balance, or the second adjustment column 520 can be moved within the second adjustment hole 510 to adjust the balance. The second adjustment hole 510 can be configured as a second screw hole, and the second adjustment column 520 can be a second bolt screwed into the second screw hole. When adjusting the dynamic balance, the second bolt can be screwed in or out according to the adjustment requirements to change its radial position (change the distance of the second bolt from the rotation axis), thereby achieving the corresponding dynamic balance adjustment.

[0034] In another embodiment, the second adjustment member can also be configured to be arranged along the axial direction of the cutter disc 200. That is, the second adjustment member includes a second adjustment hole 510 and a matching second adjustment column 520 arranged along the axial direction on the cutter disc 200, and the second adjustment column 520 can adjust its position in the second adjustment hole 510 along the axial direction of the cutter disc 200. Similarly, the second adjustment hole 510 can also be configured as a second screw hole, and the second adjustment column 520 is correspondingly configured as a second bolt screwed into the second screw hole. When adjusting the dynamic balance, the position of the second bolt can be adjusted upward or downward according to the adjustment requirements, so that the distance between the second bolt and the center of the connection between the tool handle 100 and the machining spindle changes, thereby achieving the corresponding dynamic balance adjustment.

[0035] In order to facilitate the assembly of the first dynamic balance adjustment mechanism 400 and to facilitate the connection with the cutter disc 200, the lower end of the tool handle 100 is configured as an annular structure 110, and the plurality of first adjustment members are circumferentially distributed on the periphery of the annular structure 110. In this embodiment, the first dynamic balance adjustment mechanism 400 includes two groups of first adjustment members symmetrically distributed on the periphery of the tool handle 100 (e.g., the annular structure 110). The two groups of first adjustment members can be located at the same height or staggered in the height direction. Each group of first adjustment members includes a plurality of first adjustment members uniformly spaced along the circumference. The spacing between each two adjacent first adjustment members in each group is equal, and each first adjustment member in each group is connected to a first adjustment member opposite to the other group through the center of the tool handle 100. For example, the first adjustment hole 410 of each first adjustment member is opened on the outer peripheral surface of the annular structure 110 in the radial direction.

[0036] See Figure 3 In this embodiment, the annular structure 110 at the lower end of the tool handle 100 can be formed in the following manner: a first groove 120 with a notch facing downward is provided at the lower end of the tool handle 100, and the first groove 120 defines the lower end of the tool handle 100 as the annular structure 110. Providing the lower end of the tool handle 100 as the first groove 120 not only defines the lower end of the tool handle 100 as the annular structure 110 to facilitate the configuration of the first dynamic balance adjustment mechanism 400, but also facilitates the assembly of the cutter head 200 to achieve the performance of a single item for multiple uses, and can also optimize the overall structure to reduce structural complexity. In order to facilitate the assembly of the cutter head 200 so that the cutter head 200 fits tightly against the lower end of the tool handle 100, the first groove 120 can be configured as a tapered groove with a small end facing upward and a large end facing downward, and its groove wall is configured as an inclined wall that tilts downward and outward. Those skilled in the art should understand that the annular structure 110 is not limited to the above-mentioned formation method. For example, directly assembling a split annular structure 110 on the lower end of the shank 100 also falls within the scope of protection of the present invention.

[0037] Referring to Figure 4 The cutter head 200 has a cutter ring 210 and a plurality of (e.g. three) ribs 220 formed in the hollow space of the cutter ring 210. The outer ends of the plurality of ribs 220 are connected to the inner side of the cutter ring 210, and the inner ends converge at the center of the cutter ring 210 to form a converging portion 230 for coaxial connection to the lower end of the cutter shank 100.

[0038] The diameter of the cutter head 200 (cutter ring 210) is much larger than the diameter of the cutter shank 100. For example, the planar size of the cutter head 200 can be larger than or adapted to the planar size of the machining surface, so that multi-cutter machining is not required in the machining process of the machining surface, and the problem of tool joint marks caused by multi-cutter machining is solved. In this embodiment, in order to reduce the weight of the cutter head 200, the cutter head 200 can be made of a metal material with low density such as aluminum alloy, and the inside of the cutter head 200 (cutter ring 210 and / or ribs 220) can be hollowed out so that the cutter head 200 is a hollow structure.

[0039] The inner end height of the ribs 220 is higher than the height of the cutter ring 210, so that the height of the converging portion 230 is higher than the height of the cutter ring 210, so that after the converging portion 230 is assembled to the lower end of the cutter shank 100, the cutter head 200 is located below the cutter shank 100. In this embodiment, a boss 231 protruding and connected to the first groove 120 is formed on the converging portion 230, and a bearing surface 232 surrounding the outer periphery of the boss 231 is formed, which is used to bear against the lower end surface of the annular structure 110. Adapted to the tapered groove described above, the boss 231 is configured as a tapered boss adapted to the tapered groove, which protrudes and is connected in the tapered groove.

[0040] The converging portion 230 can be connected to the lower end of the cutter shank 100 by threaded connection. For example, a first connecting hole 233 penetrating in the vertical direction is provided on the converging portion 230, and a second connecting hole (not shown in the figure) coaxially communicating with the first connecting hole 233 is provided on the groove bottom of the first groove 120, and the first connecting hole 233 and the second connecting hole are connected together by a connecting bolt 234. In order to reduce the thickness of the converging portion 230 while sinking the head of the bolt in the lower end of the converging portion 230, a second groove 235 recessed upward is provided on the lower side of the converging portion 230, the lower end of the first connecting hole 233 penetrates the groove bottom surface of the second groove 235, and the depth of the second groove 235 is greater than the height of the head of the connecting bolt 234.

[0041] Please continue to refer to Figure 2The second adjusting members described above are distributed circumferentially on the cutter ring 210. For example, the second adjusting holes 510 of the second adjusting members are evenly spaced around the cutter ring 210, and each second adjusting hole 510 is arranged on the cutter ring 210 in the axial direction of the cutter ring 210 (the axial direction of the entire cutter), for example, on the lower end, the upper end of the cutter ring 210, or through the cutter ring 210 in the axial direction. Those skilled in the art can understand that the arrangement of the second adjusting members is not limited to the adjustment mode described above, for example, the arrangement mode similar to the first adjusting member described above can also be used. Those skilled in the art can also understand that even if the cutter ring 210 is hollowed out, the positions of the connecting holes or adjusting holes of the cutter ring 210 should not be hollowed out, so that the connecting holes, adjusting holes, etc. can better cooperate with the corresponding connecting pins and adjusting pins.

[0042] The first cutting unit 300 described above is arranged on the periphery of the cutter head 200, and the structure of the first cutting unit 300 is determined according to the products processed in different embodiments, and any existing cutting unit structure can be used, so this text does not make any limitation and excessive repetition on the structure of the first cutting unit 300. Because the first cutting unit 300 has a certain weight, the counterweight of the cutter is unbalanced, so at least one counterweight area 211, for example, two counterweight areas 211 shown in the figure, is arranged on the periphery of the cutter head 200. Each counterweight area 211 is used to assemble a counterweight member adapted to the first cutting unit 300, which can be a counterweight block 600 with an appropriate weight, or a second cutting unit can be assembled to make the cutter ring 210 can assemble multiple cutting units (first cutting unit 300 and second cutting unit). When the counterweight area 211 is one, the counterweight area 211 is arranged on the cutter ring 210 opposite to the first cutting unit 300. When the counterweight area 211 is multiple, for example, two, the counterweight members of the multiple counterweight areas 211 are evenly spaced around the periphery of the cutter head 200.

[0043] In one embodiment, the counterweight is configured as a second cutting unit (not shown) compatible with the first cutting unit 300. Continuing with the example of the two counterweight zones 211 in this embodiment, a second cutting unit is mounted in each of the two counterweight zones 211, resulting in a total of three cutting units mounted on the knife ring 210 (one first cutting unit 300 and two second cutting units). The cutting edges of the three cutting units are located at different heights (in the axial or vertical direction), meaning that the distances between the cutting edges of each cutting unit and the machining surface are different. The machining allowance of the cutting edge of the cutting unit farthest from the machining surface is less than the product's machining allowance and greater than zero. For example, among the three cutting units (one first cutting unit 300 and two second cutting units), the first cutting unit 300 is located lowest and closest to the product's machining surface. The machining allowance of the cutting edge of the first cutting unit 300 is equal to the product's machining allowance. Assuming a machining allowance of 2 mm, the machining allowance of the cutting edge of the first cutting unit 300 is 2 mm. Of the two second cutting units, one is located at the highest position and is farthest from the processing surface of the product, and the other second cutting unit is located in the middle position, and is less than the first cutting unit 300 in distance from the processing surface and greater than the second cutting unit in the highest position. For example, the processing volume of the second cutting unit in the middle position can be configured to be 1.3 mm, and the processing volume of the second cutting unit in the highest position can be configured to be 0.7 mm. Those skilled in the art will appreciate that the number of the second cutting units can be set according to different needs, and is not limited to the three mentioned above. For example, the second cutting units can be one, three or more. It is only necessary to make the height of at least one second cutting unit inconsistent with the height of the first cutting unit 300. Preferably, the heights of the various cutting units are different.

[0044] In this embodiment, a second cutting unit can be installed in each counterweight area 211, so that the vertical height of the cutting edge of the second cutting unit is different. When processing the product, the product surface is cut in multiple levels from the lowest cutting edge to the highest cutting edge, distributing the machining allowance to the cutting edges at different heights, reducing the wear of each cutting edge and increasing the service life. In addition, this can improve processing efficiency and is suitable for rough processing of product processing surfaces.

[0045] In another embodiment, the counterweight member can be a simple counterweight structure such as a counterweight block 600, which does not participate in the cutting process. In this embodiment, the cutter head 200 of the machining tool is equipped with a cutting unit (i.e., the first cutting unit 300 described above) suitable for fine machining of the product surface.

[0046] The above two methods improve the versatility of the machining tool of the present invention, making it suitable for both rough machining and fine machining of products. During rough machining, the counterweight 600 on the cutter head 200 can be replaced with the corresponding second cutting unit. During fine machining, the second cutting unit on the cutter head 200 can be replaced with the counterweight 600. This solves the counterweight and dynamic balance issues of the cutter head 200 and also expands the applicability of the machining tool.

[0047] Based on the above method, the counterweight of each counterweight area 211 is detachably mounted to the counterweight area 211, facilitating replacement of the counterweight 600 and the second cutting unit. Either the counterweight 600 or the second cutting unit can be mounted to the counterweight area 211 using any existing detachable method, such as threaded connection.

[0048] In this embodiment, the connection between the ribs 220 and the knife ring 210 is used for the assembly area 212 and the counterweight area 211 of the first cutting unit 300, respectively. For example, the knife ring 210 has three areas corresponding to the three ribs 220, one of which is used for the assembly area 212 for assembling the first cutting unit 300, and the other two areas are used as two counterweight areas 211. The three ribs 220 evenly divide the inner space of the knife ring 210 into three parts. Therefore, the assembly area 212 and the two counterweight areas 211 are evenly spaced on the knife ring 210. This method not only increases the overall strength and stability of the knife ring 210, but also increases the strength of the assembly area 212 and the counterweight area 211, ensuring that the corresponding cutting unit can be securely assembled in each area and avoiding various adverse effects caused by insufficient strength.

[0049] See Figure 5 and Figure 6 Assembly slots 213 are provided in the assembly area 212 and the counterweight area 211. These slots 213 extend inward from the outer side of the knife ring 210, radially extending through the outer side of the knife ring 210 and axially extending through the lower end surface of the knife ring 210. A fixing hole, such as a third screw hole 214, is provided at the bottom of the assembly slot 213 (the side facing the center of the knife ring 210). The third screw hole 214 can extend into the corresponding rib 220. Corresponding to this solution, a third connecting hole 215 is coaxially provided on the first cutting unit 300, the second cutting unit, and the counterweight 600 at a position corresponding to the third screw hole 214. The third connecting hole 215 can be a threaded hole or a through-hole. The fixing hole and the third connecting hole 215 are connected together using a connecting bolt, such as a third bolt 216.

[0050] In this embodiment, the third connecting hole 215 is configured as a through-hole with a smooth inner wall. Correspondingly, the section of the third bolt 216 corresponding to the through-hole can be configured as a cylinder with a smooth surface, and the section of the third bolt 216 that extends into the third screw hole 214 needs to be provided with an external thread. The inner diameter of the third connecting hole 215 in the height direction is slightly larger than the diameter of the third bolt 216, so that the corresponding counterweight block 600, the first cutting unit 300 or the second cutting unit can be displaced a certain distance in the height direction. The third connecting hole 215 is directly set to have a hole diameter larger than the diameter of the third bolt 216, so that an adjustment gap 215a is generated between the third connecting hole 215 and the third bolt 216 in the height direction. This adjustment gap 215a is mainly used for fine-tuning of the first cutting unit 300 and the second cutting unit, so that the position of the cutting edge of each cutting unit in the height direction can be fine-tuned to meet more needs. In order to prevent the first cutting unit 300 or the second cutting unit from moving upward after height adjustment to ensure effective cutting processing, a fourth screw hole 217 is provided on the upper end surface of the knife ring 210 at a position directly opposite the assembly slot 213. A fourth bolt 218 is screwed into the fourth screw hole 217. The fourth bolt 218 is used to press downward against the first cutting unit 300, the second cutting unit or the counterweight 600 in the corresponding assembly slot 213. Based on this embodiment, when the first cutting unit 300, the second cutting unit or the counterweight 600 is locked at any height, the lower end of the fourth bolt 218 presses downward against the corresponding first cutting unit 300, the second cutting unit or the counterweight 600 to prevent the first cutting unit 300, the second cutting unit or the counterweight 600 from moving upward during processing.

[0051] When installing the first cutting unit 300, second cutting unit, or counterweight 600, first, screw the fourth bolt 218 upward a certain distance, fit the first cutting unit 300, second cutting unit, or counterweight 600 into the corresponding mounting slot 213, and screw the third bolt 216 inward into the third screw hole 214 so that the cap of the third bolt 216 and the bottom surface of the mounting slot 213 fit together to press the corresponding first cutting unit 300, second cutting unit, or counterweight 600. Then, screw the fourth bolt 218 downward until its lower end abuts the corresponding first cutting unit 300, second cutting unit, or counterweight 600. To adjust the first cutting unit 300, second cutting unit, or counterweight 600 downward, simply loosen the third bolt 216, move the corresponding first cutting unit 300, second cutting unit, or counterweight 600 downward, and then screw the fourth bolt 218 downward until it abuts. When the first cutting unit 300 needs to be adjusted upward, the fourth bolt 218 needs to be screwed out upward for a certain distance before adjusting and tightening.

[0052] Based on the above embodiment, the following methods can be used to adjust the dynamic balance of the machining tool of the present invention:

[0053] First, use a dynamic balancing device, such as a balancing machine (suitable for high-precision balancing, with an accuracy of ±0.1 g·mm) or a simple balancing stand (suitable for less precise balancing), to measure the tool's imbalance and phase (angular position) during rotation. The direction of imbalance is typically indicated by "light" or "heavy." For example, on the toolhead 200, "heavy" locations are marked in red, while "light" locations are marked in green to facilitate subsequent adjustments.

[0054] Secondly, adjust the bolts or counterweights (such as the first bolt, second bolt, and counterweight mentioned above). Adjustments can be made in the following ways: (1) Add counterweights to the screw holes at the "light" position, such as screwing in heavier bolts to change the mass distribution at that position; (2) Reduce counterweights in the screw holes at the "heavy" position, such as shortening or removing the bolts. For example, if a 10-gram screw was originally used, it can be replaced with an 8-gram screw to reduce the weight at that position; (3) Move the position of the existing bolt. If the tool design allows, the position of the existing bolt can be directly moved, such as adjusting the bolt position outward or inward. For example, moving the bolt outward by 5 mm changes its distance from the rotation axis, thereby adjusting the imbalance.

[0055] Verification and iteration follow: After each adjustment, retest the cutterhead 200's imbalance and vibration using a dynamic balancing machine or a simple balancing stand. Continue adjusting and testing until the vibration or deviation values ​​fall within the acceptable range. For example, for a G6.3-grade cutterhead 200, the allowable residual imbalance is 1.26 g·mm. Adjustment is complete when the test value approaches or reaches this standard.

[0056] During the adjustment process, the adjusted value can be obtained directly using a dynamic balancing machine or manually calculated. A dynamic balancing machine is a measuring device that, when inspecting the fly cutter disc 200, directly provides the imbalance value of the disc 200 in grams per millimeter (g·mm). It has high measurement accuracy, reaching ±0.1 g·mm, providing accurate data for subsequent adjustments. When manually calculating, the formula "Imbalance = m × r" can be used. Here, m is the mass to be adjusted (in grams), and r is the adjustment radius (the distance from the center of the screw hole to the axis of rotation, in millimeters). For example, if the mass to be adjusted is 3 grams and the adjustment radius is 50 mm, the imbalance value is 3 × 50 = 150 g·mm. The change in imbalance after each adjustment is calculated as: Unbalance change = Bolt mass × travel distance. Assuming a bolt mass of 2 grams and a travel distance of 10 mm, the change in imbalance is 2 × 10 = 20 g·mm. By adjusting the travel distances of multiple bolts or adjusting bolts of different masses, the initial imbalance can be gradually offset. For example, if the initial imbalance is 200g·mm, you can first adjust one screw to produce a change of -50g·mm, and then adjust the other screws to gradually reduce the imbalance to within the allowable range.

[0057] In summary, the machining tool of the present invention has at least the following beneficial effects: (1) By providing a first dynamic balance adjustment mechanism 400 at the lower end of the tool handle 100 and / or providing a second dynamic balance adjustment mechanism 500 on the cutter head 200, the cutter head 200 of the machining tool can be configured as a cutter head 200 of a larger size, and the larger cutter head 200 is precisely dynamically balanced by the first dynamic balance adjustment mechanism 400 and / or the second dynamic balance adjustment mechanism 500, ensuring that the dynamic balance of the cutter head 200 meets the requirements. When machining a machining surface of a product of corresponding size, the machining of the machining surface can be completed in one go, solving the problem of needing multiple tool machining due to insufficient tool plane size, solving the problem of tool connection marks on the product surface due to multiple tool machining, and improving the product yield. (2) Through the first dynamic balance adjustment mechanism 400 and / or the second dynamic balance adjustment mechanism 500, the dynamic balance of the cutter head 200 that can be detached from the tool handle 100 can be adjusted according to its own situation, ensuring that the dynamic balance of each cutter head 200 meets the requirements. (3) The cutterhead 200 is configured with a cutter ring 210 and ribs 220, which can reduce the weight of the cutterhead 200 while ensuring its strength. (4) The ribs 220 are evenly distributed within the cutter ring 210, and the connection between the ribs 220 and the cutter ring 210 is also evenly spaced around the cutter ring 210, increasing the strength of the connection. The installation area of ​​the cutting unit and the counterweight is placed at this connection, which ensures the installation strength and connection stability of the cutting unit and the counterweight. It is no longer necessary to add reinforcement parts to the cutting unit and counterweight installation area, which reduces the weight of the cutterhead 200 and reduces the structural complexity. (5) Since the collecting portion 230 is formed by the collection of multiple ribs 220, its strength meets the requirements. The collecting portion 230 can be directly configured as a connecting portion that can be detachably connected to the lower end of the tool handle 100 to ensure the connection strength between the cutter head 200 and the tool handle 100. The collecting portion 230 is coaxially arranged with the cutter head 200. After being assembled on the tool handle 100, it is coaxially arranged with the tool handle 100 to ensure that the axis does not deviate from the rotation center. (6) The conical first groove 120 provided at the lower end of the tool handle 100 can not only define the annular structure 110 to facilitate the assembly of the first dynamic balance adjustment mechanism 400, but also provide guidance when the collecting portion 230 is assembled. At the same time, when the collecting portion 230 is connected, the collecting portion 230 can be pressed tightly into the first groove 120 to increase the connection strength and stability.

[0058] The above embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A machining tool comprising a tool holder, a cutter head disposed at the lower end of the tool holder, and a first cutting unit disposed on the cutter head, characterized in that: It also includes a first dynamic balance adjustment mechanism and / or a second dynamic balance adjustment mechanism, the first dynamic balance adjustment mechanism includes a plurality of first adjustment members circumferentially distributed around the periphery of the tool handle, and the second dynamic balance adjustment mechanism includes a plurality of second adjustment members circumferentially distributed around the periphery of the tool disc.

2. The machining tool according to claim 1, wherein: The first adjusting member includes a first adjusting hole provided on the knife handle along a radial direction of the knife handle and a matching first adjusting post, wherein the first adjusting post can adjust its position in the first adjusting hole in the radial direction; or the first adjusting member includes a first adjusting hole provided on the knife handle along an axial direction of the knife handle and a matching first adjusting post, wherein the first adjusting post can adjust its position in the first adjusting hole in the axial direction of the knife handle; The second adjusting member includes a second adjusting hole and a matching second adjusting column arranged on the cutter disc along a radial direction, and the second adjusting column can adjust its position in the second adjusting hole along the radial direction; or, the second adjusting member includes a second adjusting hole and a matching second adjusting column arranged on the cutter disc along an axial direction, and the second adjusting column can adjust its position in the second adjusting hole along the axial direction of the cutter disc.

3. The machining tool according to claim 1, wherein: The lower end of the knife handle is configured as an annular structure, and the plurality of first adjustment members are circumferentially distributed on the periphery of the annular structure.

4. The machining tool according to claim 1, wherein: The cutter disc has a cutter ring and a plurality of ribs formed in the hollow space of the cutter ring. The outer ends of the plurality of ribs are connected to the inner side surface of the cutter ring, and the inner ends converge at the center of the cutter ring to form a gathering part, and the gathering part is coaxially connected to the lower end of the cutter handle; the plurality of second adjustment parts are distributed circumferentially on the cutter ring.

5. The machining tool according to claim 4, wherein: The inner end of the rib is higher than the height of the knife ring so that the height of the collecting portion is higher than the height of the knife ring; the knife ring and / or the ribs are all hollow structures.

6. The machining tool according to claim 4, wherein: The lower end of the knife handle is provided with a first groove with a notch facing downward, and the first groove defines the lower end of the knife handle as an annular structure; the gathering part is formed with a boss protruding and connected to the first groove and a supporting surface surrounding the outer periphery of the boss, and the supporting surface is used to support the lower end surface of the annular structure.

7. The machining tool according to claim 6, wherein: The first groove is a tapered groove with the small end facing upward, and the groove wall is configured as an inclined wall inclined downward and outward; the boss is configured as a tapered platform adapted to the tapered groove, and the tapered platform protrudes and is connected to the tapered groove.

8. The machining tool according to claim 7, wherein: The collecting portion is provided with a first connecting hole extending vertically therethrough, and the bottom of the first groove is provided with a second connecting hole coaxially connected to the first connecting hole, and the first connecting hole and the second connecting hole are connected together by a connecting bolt; A second groove is formed upward on the lower side of the collecting portion, the lower end of the first connecting hole passes through the bottom of the second groove, and the depth of the second groove is greater than the height of the bolt cap of the connecting bolt.

9. The machining tool according to claim 1, wherein: The first cutting unit is arranged on the periphery of the cutter disc; the periphery of the cutter disc is also provided with at least one counterweight area, and the at least one counterweight area is used to assemble a counterweight member adapted for the first cutting unit; the counterweight member assembled at the at least one counterweight area is evenly spaced from the first cutting unit and is arranged around the periphery of the cutter disc.

10. The machining tool according to claim 9, wherein: The counterweight is configured as a second cutting unit adapted to the first cutting unit, and the distance between the cutting edge of the second cutting unit and the processing surface is different from the distance between the cutting edge of the first cutting unit and the processing surface.

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