Multi-edge ball head diamond cutter and cutting method

Abstract

The invention relates to the technical field of precision machining, and provides a multi-edge ball head diamond cutter which comprises a fixing piece and cutting edge pieces. The outer surface of one end of the fixing piece is a hemispherical cambered surface, and the cutting edge piece is located at one end of the fixing piece; the cutting edge piece comprises a first cutting part, a second cutting part and a third cutting part; the first cutting part is arranged along the axis of the semispherical cambered surface and equally divides the semispherical cambered surface into two cutting spaces; the two second cutting parts are symmetrically arranged with the first cutting part as the center, and interval grooves exist between the second cutting parts and the first cutting part; the multiple third cutting parts are located in the two cutting spaces. The tool bit structure has the effect of prolonging the service life of the whole tool bit structure. In addition, the invention further provides a cutting method of the edge ball head diamond cutter.

Description

Technical Field

[0001] The present application relates to the field of precision machining technology, and in particular to a multi-edge ball-end diamond tool and a cutting method. Background Art

[0002] Ball end mills are widely used in the machining of key parts in industries such as aerospace, automobiles, and ships. At the same time, these key parts are mainly made of difficult-to-machine materials such as diamond, titanium alloy, high-temperature alloy, and high-strength steel, which have the characteristics of high strength, low density, and high thermal hardness.

[0003] A general tool head structure is provided with a cutting edge, which is used to mill a workpiece. However, during long-term use, the cutting edge is squeezed and rubbed by the workpiece, which makes the cutting edge easy to wear, resulting in the need for frequent replacement of the tool head structure. Summary of the invention

[0004] In order to improve the above problems, the present application provides a multi-edge ball-end diamond tool and a cutting method.

[0005] The present application provides a multi-edge ball-end diamond tool and a cutting method using the following technical solutions: A multi-edged ball-end diamond tool comprises a tool handle and a tool head structure, wherein the tool head structure is connected to one end of the tool handle; the tool head structure comprises a fixing part and a cutting edge part; the outer surface of one end of the fixing part is a hemispherical arc surface, and the cutting edge part is located at one end of the fixing part; the cutting edge part comprises a first cutting part, a second cutting part and a third cutting part; the first cutting part is arranged along the axis of the hemispherical arc surface, and divides the hemispherical arc surface into two cutting spaces on average; two second cutting parts are symmetrically arranged with the first cutting part as the center, and a spacing groove exists between the second cutting part and the first cutting part; a plurality of third cutting parts are arranged, and are located in the two cutting spaces.

[0006] By adopting the above technical solution, during the milling process, the first cutting part and the second cutting part are used for cutting to remove most of the excess, and the remaining processing excess is squeezed and processed by the third cutting part, which can effectively improve the processing accuracy and reduce the wear of the first cutting part and the second cutting part to extend the service life of the overall tool head structure. The spacer groove can be used to optimize the chip removal capacity to avoid the accumulation of waste chips in the first cutting part and the second cutting part to adversely affect the service life of the tool head structure.

[0007] Optionally, it also includes an adjusting member and a mounting member; the fixing member is provided with an adjusting groove in the vertical direction, the mounting member is slidably connected to the fixing member, and the second cutting portion and the third cutting portion are connected to the mounting member; the adjusting groove matches the second cutting portion and the third cutting portion, so that the second cutting portion and the third cutting portion are located in the adjusting groove, and when the mounting member slides along the fixing member, the second cutting portion and the third cutting portion move along the adjusting groove; the outer wall surface of the fixing member is provided with an external thread; the adjusting member is threadedly connected to the fixing member through the external thread; the mounting member is pivotally connected to the adjusting member.

[0008] By adopting the above technical solution, the first cutting part is mainly used for contact milling with the workpiece, so that the first cutting part will wear out after being used for a long time, and the wear rate of the second cutting part and the third cutting part is lower than that of the first cutting part. Therefore, the position of the second cutting part and the third cutting part can be adjusted by using an adjusting part to adapt to the first cutting part, thereby extending the service life of the tool head structure.

[0009] Optionally, an elastic member is also included; the mounting member includes a first mounting portion and a second mounting portion; the first mounting portion is separated from the second mounting portion, and the first mounting portion is located on the side close to the external thread; one end of the elastic member is connected to the first mounting portion, and the other end is connected to the fixing member; the second cutting portion and the third cutting portion pass through the second mounting portion and are connected to the first mounting portion; the second mounting portion is pivotally connected to the adjusting member.

[0010] By adopting the above technical solution, the second cutting part and the third cutting part are pressed downward, and the second cutting part and the third cutting part are pressed into the adjustment groove, and then quickly separated from the desktop or any plane. The second cutting part and the third cutting part can be quickly pushed out of the accumulated waste chips by the elastic effect of the elastic part to speed up the separation of the waste chips from the cutter head structure. At the same time, the elastic force can make the second cutting part and the third cutting part vibrate back and forth, so as to further vibrate out the attached waste chips by vibration.

[0011] Optionally, the adjusting member is further provided with a sliding portion; the fixing member is provided with a positioning portion, and the positioning portion is provided with a plurality of positioning grooves; the sliding portion is slidably connected to the adjusting member and is engaged with any of the positioning grooves.

[0012] By adopting the above technical solution, when the adjusting member is adjusted to a suitable position, the sliding part is slid, and the sliding part and the positioning part are engaged with each other, so that the adjusting member cannot continue to rotate, thereby stabilizing the position of the cutting edge member during cutting.

[0013] Optionally, at least two sliding parts are provided, and the number of the sliding parts is less than the number of the positioning grooves; the sliding parts are further connected to connecting parts, and the connecting parts connect all the sliding parts into one.

[0014] By adopting the above technical solution, at least two sliding parts are used to improve the stability of the connection. At the same time, the sliding parts can be inserted into the positioning grooves through the connecting parts at the same time to lock the adjusting parts. There is no need to move the sliding parts one by one, which improves the convenience of controlling the sliding parts.

[0015] Optionally, outer surfaces of the second cutting portion and the third cutting portion both match the hemispherical arc surface and are convex arc surfaces.

[0016] By adopting the above technical solution, when the second cutting portion and the third cutting portion are in contact with the surface of the workpiece, most of the excess of the workpiece can be cut and the contour of the machined curved surface can be ensured.

[0017] Optionally, the two cutting spaces are symmetrical spaces with the first cutting part as the center line.

[0018] By adopting the above technical solution, the two cutting spaces are symmetrical spaces with the first cutting part as the center line, so that the third cutting edge is also symmetrically arranged, ensuring the stable performance of the cutter head structure during rotation and preventing the cutter head structure from chattering during milling.

[0019] Optionally, the interval width between adjacent third cutting portions gradually increases from the top area to both ends of the fixing member.

[0020] By adopting the above technical solution, when the third cutting part and the workpiece are milled, the waste chips generated can fall along the gradually increasing gap, so that they will not be blocked in the gap, which facilitates the waste chips to fall out.

[0021] Optionally, the tool handle and the tool head structure are detachably connected.

[0022] By adopting the above technical solution, the cutter head structure can be separated by a detachable connection, thereby facilitating replacement of the cutter head structure when it is severely worn.

[0023] A cutting method of a blade ball-end diamond tool, which is applied to a multi-blade ball-end diamond tool and a cutting device, comprises the following steps: Tool attachment: The tool holder is connected to the cutting equipment; Milling: The cutting equipment drives the tool into contact with the workpiece and applies milling force; The first cutting part and the second cutting part contact the workpiece and apply milling force. The first cutting part removes most of the excess, and the remaining machining excess is squeezed by the second cutting part and the third cutting part, and the waste chips are pushed into the spacing groove, and the waste chips are discharged through the spacing groove; Chip removal: Apply vibration or wind pressure to the spacing groove to remove chips; Replacement: Disassembly of the tool for replacement or repair, and removal of the milled workpiece to replace the unmilled workpiece.

[0024] By adopting the above technical solution, partial protection of the cutter head structure can be provided, thereby extending the service life of the entire cutter.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the milling process, the first cutting part and the second cutting part perform cutting action to remove most of the excess, and the remaining machining excess is squeezed and processed by the third cutting part, which can effectively improve the machining accuracy and reduce the wear of the first cutting part and the second cutting part to extend the service life of the overall cutter head structure. The use of the spacing groove can optimize the chip removal capacity and avoid the accumulation of waste chips at the first cutting part and the second cutting part to adversely affect the service life of the cutter head structure; 2. The first cutting part is mainly used for contact milling with the workpiece, so that the first cutting part will be worn after long-term use. The wear rate of the second and third cutting parts is lower than that of the first cutting part. Therefore, the position of the second and third cutting parts can be adjusted by the adjusting part to adapt to the first cutting part, thereby extending the service life of the cutter head structure; 3. Press down the second cutting part and the third cutting part, the second cutting part and the third cutting part are pressed into the adjustment groove, and then quickly separated from the desktop or any plane. The second cutting part and the third cutting part can be quickly pushed out of the accumulated waste chips by the elastic effect of the elastic part to accelerate the separation of the waste chips from the cutter head structure. At the same time, the elastic force can make the second cutting part and the third cutting part vibrate back and forth, so as to further vibrate out the attached waste chips by vibration; 4. After the adjusting member is adjusted to a suitable position, the sliding part is slid, and the sliding part and the positioning part are engaged with each other, so that the adjusting member cannot continue to rotate, so as to stabilize the position of the cutting edge during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of a tool in some embodiments of the present application; Figure 2 This is a schematic diagram of a first three-dimensional structure of a cutter head structure in one embodiment of the present application; Figure 3 is a schematic diagram of a top view of a cutter head structure in some embodiments of the present application; Figure 4 is a schematic side view of the end of the cutter head structure in some embodiments of the present application; Figure 5 is a schematic diagram of a first cross-sectional structure of a tool head structure in some embodiments of the present application; Figure 6 is a schematic diagram of the three-dimensional structure of the mounting member in some embodiments of the present application; Figure 7 is a schematic diagram of a second cross-sectional structure of a tool head structure in some embodiments of the present application; Figure 8 is a schematic diagram of a second three-dimensional structure of a tool head structure in some embodiments of the present application; Fig. 9 is a schematic diagram of the three-dimensional structure of the sliding portion in some embodiments of the present application; Fig.10 This is a schematic diagram of a third stereoscopic structure of a cutter head structure in some embodiments of the present application; The marks in the accompanying drawings are: 1. tool head structure, 11. fixing part, 110. spacing groove, 111. adjusting groove, 112. positioning part, 1121. positioning groove, 12. cutting edge part, 121. first cutting part, 122. second cutting part, 123. third cutting part, 13. adjusting part, 131. sliding part, 132. sliding groove, 133. connecting part, 14. mounting part, 140. fitting mouth, 141. first mounting part, 142. second mounting part, 15. elastic part, 2. tool handle. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0028] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0029] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0030] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0032] The following is combined with Figure 1 -Attached Fig.10 , further details of this application are given.

[0033] The embodiments of the present application disclose a ball-end diamond tool and a cutting method.

[0034] A multi-edge ball-end diamond tool, reference Figure 1 and Figure 2 As shown, it includes a tool handle 2 and a tool head structure 1, and the tool head structure 1 includes a fixing part 11 and a cutting edge part 12. The outer surface of one end of the fixing part 11 is a hemispherical arc surface, and the cutting edge part 12 is located at one end of the fixing part 11. The fixing part 11 can adopt a metal fixing rod or a metal fixing column. The hemispherical arc surface at one end of the fixing part 11 is used to adapt to the workpiece to be processed and the installed cutting edge part 12.

[0035] The end of the fixing member 11 away from the cutting edge member 12 is connected to the tool handle 2 , and the tool handle 2 can be connected to other mechanical milling equipment without affecting the use or adjustment of the tool head structure 1 .

[0036] The tool handle 2 and the tool head structure 1 are detachably connected, and the tool head structure 1 can be separated by means of the detachable connection, so that the tool head structure 1 can be easily replaced when it is severely worn.

[0037] Furthermore, the detachable method may be a snap-on connection or a bolt-locked connection, that is, threaded holes are provided on both the tool shank 2 and the tool head structure 1, and the tool shank 2 and the tool head structure 1 are connected by passing the bolt through the threaded hole and then screwing in the nut. When disassembly is required, the nut is unscrewed and then the bolt is unscrewed from the threaded hole to separate the tool shank 2 and the tool head structure 1.

[0038] The cutting blade member 12 includes a first cutting portion 121, a second cutting portion 122 and a third cutting portion 123; the first cutting portion 121 is arranged along the axis of the hemispherical arc surface, and divides the hemispherical arc surface evenly into two cutting spaces. The first cutting portion 121 can adopt a first cutting edge, which is an arc-shaped blade structure, covering the hemispherical arc surface of the fixing member 11 and passing through the axis of the hemispherical arc surface. The middle area of ​​the first cutting edge is used to extrude the workpiece with a small excess, thereby improving the surface roughness and contour of the processed workpiece.

[0039] With the first cutting portion 121 as the center, two second cutting portions 122 are symmetrically arranged to ensure the stability of the tool head structure 1 when it rotates and avoid the tool chattering phenomenon during the processing. There is a spacing groove 110 between the second cutting portion 122 and the first cutting portion 121. The second cutting portion 122 can adopt a second cutting edge, and the second cutting edge is arranged parallel to the first cutting edge. The spacing groove 110 between the first cutting portion 121 and the second cutting portion 122 is used to provide timely discharge of waste chips in the top area of ​​the tool head structure 1 to avoid waste chips from accumulating around the spacing groove 110, which will have an adverse effect on the processing effect and the life of the tool head.

[0040] The third cutting part 123 is provided in plurality and is located in two cutting spaces. The third cutting part 123 can adopt a third cutting edge. The number of the third cutting edges is provided in plurality and the number of the third cutting edges in the two cutting spaces is the same. In this embodiment, five third cutting edges are provided in a single cutting space as an example.

[0041] Among them, the two cutting spaces are symmetrical spaces with the first cutting part 121 as the center line, so that the third cutting edge is also symmetrically arranged, ensuring the stable performance of the cutter head structure 1 during rotation and preventing the cutter head structure 1 from chattering during milling.

[0042] The intervals between adjacent third cutting portions 123 provide chip removal. By utilizing a plurality of third cutting portions 123, the tool head structure 1 can increase the cutting force and machining accuracy, and improve the chip removal capability. During the milling process, the third cutting portion 123 and the second cutting portion 122 act simultaneously to cut most of the excess of the workpiece, and then cooperate with the first cutting edge for fine machining, which can avoid line marks caused by machining, increase the fine machining depth, and achieve the effect of layered cutting.

[0043] Furthermore, the outer surfaces of the second cutting portion 122 and the third cutting portion 123 are both in conformity with the hemispherical arc surface and are convex arc surfaces. When the second cutting portion 122 and the third cutting portion 123 are in contact with the surface of the workpiece, most of the excess of the workpiece can be cut and the contour of the processed curved surface can be ensured.

[0044] Furthermore, the width between adjacent third cutting portions 123 gradually increases from the top area of ​​the fixing member 11 to both ends, so that the waste chips generated when the third cutting portion 123 and the workpiece are milled can fall along the gradually increasing gap, so as not to be blocked in the gap, thereby facilitating the waste chips to fall out.

[0045] Among them, reference Figure 4 As shown, the first cutting portion 121 has a wedge-shaped corner, and the second cutting portion 122 has a wedge-shaped corner on the side close to the spacing groove 110. The wedge-shaped corner can be used to increase the slot opening of the spacing groove 110, so that even if waste chips are blocked, the waste chips can be easily poured out of the spacing groove 110.

[0046] During the milling process, the first cutting part 121 and the second cutting part 122 are used for cutting to remove most of the excess, and the remaining processing excess is squeezed through the third cutting part 123, which can effectively improve the processing accuracy and reduce the wear of the first cutting part 121 and the second cutting part 122 to extend the service life of the overall tool head structure 1. The spacer groove 110 can optimize the chip removal capacity to avoid the accumulation of waste chips in the first cutting part 121 and the second cutting part 122 to adversely affect the tool life.

[0047] In some embodiments, reference Figure 5 and Figure 6 As shown, it also includes an adjusting member 13 and a mounting member 14; the fixing member 11 is provided with an adjusting groove 111 in the vertical direction, and the mounting member 14 is slidably connected to the fixing member 11. The mounting member 14 can adopt a mounting plate or a mounting disk, and a fitting opening 140 is provided on the mounting plate or the mounting disk. The fitting opening 140 is used to fit the part of the hemispherical arc surface of the fixing member 11 that is not connected to the second cutting portion 122 and the third cutting portion 123, so that the mounting plate or the mounting disk can move along the fixing member 11 without being blocked by the fixing member 11. Among them, the adjusting groove 111 shown in the figure is larger for clear display. The notch of the actual adjusting groove 111 is close to the second cutting portion 122 and the third cutting portion 123 to prevent waste chips from entering the adjusting groove 111, and the notch of the adjusting groove 111 is generally downward in use, so waste chips will not enter the adjusting groove 111 due to the influence of gravity.

[0048] The second cutting portion 122 and the third cutting portion 123 are connected to the mounting member 14, and the adjusting groove 111 matches the second cutting portion 122 and the third cutting portion 123, that is, the inner groove style of the adjusting groove 111 is consistent with the external structure and size of the second cutting portion 122 and the third cutting portion 123, so that the second cutting portion 122 and the third cutting portion 123 are located in the adjusting groove 111, and when the mounting member 14 slides along the fixing member 11, the second cutting portion 122 and the third cutting portion 123 move along the adjusting groove 111, so that the protruding height of the second cutting portion 122 and the third cutting portion 123 can be adjusted.

[0049] The outer wall of the fixing member 11 is provided with an external thread, and the adjusting member 13 is screwed to the fixing member 11 through the external thread; the mounting member 14 is pivotally connected to the adjusting member 13, and the adjusting member 13 can adopt an adjusting cylinder or an adjusting tube. The inner wall of the adjusting member 13 is provided with an internal thread and a pivot groove.

[0050] The outer diameter of the mounting member 14 is equal to or smaller than the inner diameter of the pivot slot and larger than the inner diameter of the adjusting member 13, so that the mounting member 14 is confined in the pivot slot. Meanwhile, the adjusting member 13 continuously moves along the fixing member 11 during its rotation along the outer surface of the fixing member 11 through the external thread. During the movement, the mounting member 14 is limited by the part of the fixing member 11 that is not connected to the second cutting portion 122 and the third cutting portion 123, so that it cannot follow the rotation, but can follow the adjusting member 13 to move along the fixing member 11, so that the mounting member 14 drives the second cutting portion 122 and the third cutting portion 123 to move along the fixing member 11.

[0051] Specifically, when it is necessary to adjust the positions of the second cutting portion 122 and the third cutting portion 123, the adjusting member 13 is rotated. During the rotation of the adjusting member 13, the external thread is used to move along the surface of the fixing member 11, so that the mounting member 14 pivotally connected to the adjusting member 13 drives the second cutting portion 122 and the third cutting portion 123 to move along the fixing member 11, thereby adjusting the positions of the second cutting portion 122 and the third cutting portion 123. By utilizing the stabilizing effect of the screw connection, the second cutting portion 122 and the third cutting portion 123 will not move at will during the milling process. Specifically, three effects can be achieved. One is that the wear of the first cutting portion 121 can be adapted, that is, the first cutting portion 121 is mainly in contact with the workpiece for milling, so that the first cutting portion 121 is worn when used for a long time, and the wear rate of the second cutting portion 122 and the third cutting portion 123 is lower than that of the first cutting portion 121. Therefore, the adjusting member 13 can be used to adjust the positions of the second cutting portion 122 and the third cutting portion 123 to adapt to the first cutting portion 121.

[0052] Secondly, by adjusting the positions of the second cutting portion 122 and the third cutting portion 123 on the fixing member 11, the contact degree between the second cutting portion 122 and the third cutting portion 123 and the surface of the workpiece is adjusted, so that the surface roughness and contour of the workpiece during milling can be adjusted accordingly.

[0053] Thirdly, it is convenient to discharge the waste chips accumulated in the spacing groove 110 and the cutting space, and the second cutting part 122 and the third cutting part 123 are moved along the fixing member 11 to push the sticky, attached or accumulated waste chips so that the waste chips fall out of the spacing groove 110 and the cutting space.

[0054] In some embodiments, reference Figure 7As shown, an elastic member 15 is also included. The elastic member 15 can be a spring made of metal material, and the number of springs can be set to a certain number. The specific number needs to be determined according to the size of the cutter head structure 1 and the set spring size, and is not limited here.

[0055] The mounting member 14 includes a first mounting portion 141 and a second mounting portion 142; the first mounting portion 141 is separated from the second mounting portion 142, and the first mounting portion 141 is located on a side close to the fixing member 11. The first mounting portion 141 can adopt a first mounting plate, and the second mounting portion 142 can adopt a second mounting plate. The two are separated from each other but can contact each other. The first mounting plate is closer to the external thread side of the fixing member 11 than the second mounting plate.

[0056] One end of the elastic member 15 is connected to the first mounting portion 141 , and the other end is connected to the fixing member 11 , so that the first mounting portion 141 is moved away from the fixing member 11 by the elastic force of the elastic member 15 .

[0057] After the second cutting portion 122 and the third cutting portion 123 pass through the second mounting portion 142, they are connected to the first mounting portion 141. The second mounting portion 142 is pivotally connected to the adjusting member 13, so that the second mounting portion 142 is located in the pivot groove of the adjusting member 13, and the outer diameter of the first mounting portion 141 is less than or equal to the inner diameter of the adjusting member 13, and smaller than the inner diameter of the pivot groove. When the second mounting portion 142 is acted upon by the adjusting member 13, it can move along the fixing member 11, and at the same time, when in contact with the first mounting portion 141, it can resist the first mounting portion 141, so that the first mounting portion 141 and the second mounting portion 142 move synchronously.

[0058] When the second mounting portion 142 is located at the end away from the external thread, the second cutting portion 122 and the third cutting portion 123 are affected by the first mounting portion 141 and the elastic member 15, and are pushed toward the side away from the external thread, making the second cutting portion 122 and the third cutting portion 123 longer than the protruding portion of the first cutting portion 121, so that the user can press the second cutting portion 122 and the third cutting portion 123 against the desktop or any plane, and then press down the second cutting portion 122 and the third cutting portion 123. The second cutting portion 122 and the third cutting portion 123 are pressed into the adjustment groove 111 and then quickly separated from the desktop or any plane. The second cutting portion 122 and the third cutting portion 123 can be affected by the elastic force of the elastic member 15 to quickly push out the accumulated waste chips to speed up the separation of the waste chips from the cutter head structure 1. At the same time, the elastic force can make the second cutting portion 122 and the third cutting portion 123 vibrate back and forth, thereby using vibration to further vibrate out the attached waste chips.

[0059] At the same time, when the second cutting portion 122 and the third cutting portion 123 are longer than the protruding portion of the first cutting portion 121, milling can be performed directly. When the second cutting portion 122 and the third cutting portion 123 contact the surface of the workpiece, they will also be pressed into the adjusting groove 111 until the first mounting portion 141 is tightly pressed against the bottom of the adjusting groove 111. In the pressed state, the first cutting portion 121, the second cutting portion 122 and the third cutting portion 123 can all contact the surface of the workpiece. After the processing is completed, the cutter head structure 1 is separated from the workpiece. The second cutting portion 122 and the third cutting portion 123 can be acted upon by the elastic member 15 to push the waste chips out of the spacing groove 110 or the cutting space, thereby improving the convenience of use.

[0060] When it is necessary to adjust the positions of the second cutting portion 122 and the third cutting portion 123, the position of the second mounting portion 142 can be rotated and adjusted by using the adjusting member 13 to limit the moving path of the first mounting portion 141, thereby limiting the extension length of the second cutting portion 122 and the third cutting portion 123. When the elastic member 15 is not needed, the second mounting portion 142 can be pressed against the bottom of the adjusting groove 111 by using the adjusting member 13, and the function of the elastic member 15 can be ignored. Therefore, the elastic member 15 can be used as needed.

[0061] In some embodiments, reference Figure 8 As shown, the adjusting member 13 is further provided with a sliding portion 131; a positioning portion 112 is provided on the fixing member 11, and the positioning portion 112 is provided with a plurality of positioning grooves 1121; the sliding portion 131 is slidably connected to the adjusting member 13, and is snap-fitted with any positioning groove 1121, and the positioning portion 112 can adopt a positioning ring, which is fixedly connected to the fixing member 11, and a plurality of positioning grooves 1121 are provided on the fixing ring at one end close to the fixing member 11.

[0062] The sliding portion 131 and the adjusting member 13 can be connected in a sliding manner by providing a sliding groove 132 at one end of the adjusting member 13 close to the positioning portion 112. Fig. 9 As shown, the sliding portion 131 can adopt an I-shaped connecting block, which can be stuck in the sliding groove 132 and move along the sliding groove 132, and the depth of the positioning groove 1121 cannot accommodate all the sliding portions 131. It can be set to accommodate only half of the sliding portion 131, so that a part of the sliding portion 131 is located on the adjusting member 13, and the other half is stuck in the positioning groove 1121.

[0063] Specifically, after the adjusting member 13 adjusts the position of the mounting member 14 to the desired position, the sliding portion 131 is pulled to move the sliding portion 131 along the sliding groove 132. During the movement, the sliding portion 131 extends out of the adjusting member 13 and is inserted into the positioning groove 1121 of the positioning portion 112, thereby achieving a limiting effect. The adjusting member 13 is clamped by the sliding portion 131 and cannot continue to rotate, so that the cutter head structure 1 can be stably milled without causing the second cutting portion 122 and the third cutting portion 123 to be pressed and extend into the adjusting groove 111, thereby providing stable milling processing.

[0064] When the positions of the second cutting portion 122 and the third cutting portion 123 need to be adjusted, the sliding portion 131 is pulled out from the positioning groove 1121 to separate the sliding portion 131 from the positioning portion 112 , and the adjusting member 13 can continue to be rotated.

[0065] Among them, a protrusion can be set in the positioning groove 1121, and a groove can be set on the sliding part 131. When the sliding part 131 is inserted into the positioning groove 1121, the protrusion and the groove can be plugged into each other, so that the sliding part 131 is difficult to move, thereby improving the stability of the limit. The sliding part 131 can be made of plastic material, so when subjected to sufficient force, the sliding part 131 can still break away from the protrusion and separate from the positioning part 112.

[0066] For further reference, Fig.10 As shown, at least two sliding parts 131 are provided, and the number is less than the positioning grooves 1121; the sliding part 131 is also connected to the connecting part 133, and the connecting part 133 connects all the sliding parts 131 as a whole. The connecting part 133 can adopt a connecting ring. After the connecting ring connects all the sliding parts 131 as a whole, when the position of the adjusting member 13 is adjusted, the connecting ring can be directly pushed to synchronously push all the sliding parts 131 into the positioning grooves 1121.

[0067] Specifically, at least two sliding parts 131 are used to improve the stability of the connection. At the same time, the sliding part 131 can be inserted into the positioning groove 1121 through the connecting part 133 to lock the adjusting member 13. There is no need to move the sliding part 131 individually, thereby improving the convenience of controlling the sliding part 131.

[0068] The present application also provides a cutting method of a multi-edge ball-end diamond tool, which is applied to the multi-edge ball-end diamond tool and cutting equipment of any of the above embodiments, and comprises the following steps: S100, tool installation: the tool handle 2 is connected to the cutting device; S200, milling: the cutting equipment drives the tool to contact the workpiece and applies milling force; S210, the first cutting part 121 and the second cutting part 122 are in contact with the workpiece, and the milling force is applied, the first cutting part 121 removes most of the excess, and the remaining machining excess is squeezed by the second cutting part 122 and the third cutting part 123, and the waste chips are pushed into the spacing groove 110, and the waste chips are discharged through the spacing groove 110; The third cutting portion 123 is utilized to reduce the wear of the first cutting portion 121 and the second cutting portion 122 , thereby extending the service life of the entire tool head structure 1 and even the tool.

[0069] S300, chip removal: applying vibration or wind pressure to the spacing groove 110 to remove chips; Among them, vibration chip removal is to use the cutting equipment to vibrate the tool to vibrate and discharge the waste chips from the spacing groove 110. There are two types of wind pressure chip removal, one is blowing chip removal, and the other is suction chip removal. Specifically, a blowing device or a negative pressure device is set on the cutting equipment, and the blowing device is used to apply a high-speed airflow to the spacing groove 110 to discharge the waste chips in the spacing groove 110, or the negative pressure device is used to suck the spacing groove 110 to extract the waste chips in the spacing groove 110. Both devices can also be set.

[0070] S400, Replacement: Disassemble the tool for replacement or repair, and take out the milled workpiece to replace the unmilled workpiece.

[0071] When an adjusting member 13 and a mounting member 14 are provided, step S110 is added, adjusting: rotating the adjusting member 13 to drive the mounting member 14 to move along the fixing member 11 , and making the second cutting portion 122 and the third cutting portion 123 move synchronously along the fixing member 11 .

[0072] The positions of the second cutting portion 122 and the third cutting portion 123 are adjusted by using the adjusting member 13 and the mounting member 14 , so that the second cutting portion 122 and the third cutting portion 123 can adapt to the position of the worn first cutting portion 121 , thereby delaying the wear of the first cutting portion 121 .

[0073] At the same time, step S310 is added, chip pushing: rotating the adjusting member 13 in forward and reverse directions, so that the second cutting part 122 and the third cutting part 123 move back and forth along the fixing member 11 through the mounting member 14, thereby pushing the waste chips in contact with the second cutting part 122 and the third cutting part 123 out of the spacing groove 110 to facilitate chip removal.

[0074] When the elastic member 15 is provided, step S320 is provided, vibration: the elastic force effect provided by the elastic member 15 is utilized to make the mounting member 14 vibrate under the elastic force, thereby vibrating the second cutting portion 122 and the third cutting portion 123, and utilizing the vibration to separate the waste chips.

[0075] Wherein, when a sliding portion is provided, step S120 is added, locking: the sliding portion is used to be inserted into the positioning groove along the sliding groove so that the adjusting member cannot rotate, thereby locking the position of the mounting member, so as to lock the adjusting member and the mounting member, so that the positions of the second ischemic part and the third cutting part will not move during cutting.

[0076] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-edge ball-end diamond tool, characterized in that: The invention comprises a tool handle (2) and a tool head structure (1), wherein the tool head structure (1) is connected to one end of the tool handle (2); the tool head structure (1) comprises a fixing part (11) and a cutting edge part (12); the outer surface of one end of the fixing part (11) is a hemispherical arc surface, and the cutting edge part (12) is located at one end of the fixing part (11); the cutting edge part (12) comprises a first cutting part (121), a second cutting part (122) and a third cutting part (123); the first cutting part (121) is arranged along the axis of the hemispherical arc surface, and evenly divides the hemispherical arc surface into two cutting spaces; two second cutting parts (122) are symmetrically arranged with the first cutting part (121) as the center, and a spacing groove (110) is provided between the second cutting part (122) and the first cutting part (121); a plurality of third cutting parts (123) are arranged, and are located in the two cutting spaces.

2. A multi-edge ball-end diamond tool according to claim 1, characterized in that: The invention also comprises an adjusting member (13) and a mounting member (14); the fixing member (11) is provided with an adjusting groove (111) in a vertical direction; the mounting member (14) is slidably connected to the fixing member (11); the second cutting portion (122) and the third cutting portion (123) are connected to the mounting member (14); the adjusting groove (111) matches the second cutting portion (122) and the third cutting portion (123), so that the second cutting portion (122) and the third cutting portion (123) are located in the adjusting groove (111); and when the mounting member (14) slides along the fixing member (11), the second cutting portion (122) and the third cutting portion (123) move along the adjusting groove (111); an external thread is provided on an outer wall surface of the fixing member (11); the adjusting member (13) is screwed to the fixing member (11) via the external thread; and the mounting member (14) is pivotally connected to the adjusting member (13).

3. A multi-edge ball-end diamond tool according to claim 2, characterized in that: It also includes an elastic member (15); the mounting member (14) includes a first mounting portion (141) and a second mounting portion (142); the first mounting portion (141) is separated from the second mounting portion (142), and the first mounting portion (141) is located on a side close to the external thread; one end of the elastic member (15) is connected to the first mounting portion (141), and the other end is connected to the fixing member (11); the second cutting portion (122) and the third cutting portion (123) pass through the second mounting portion (142) and are connected to the first mounting portion (141); the second mounting portion (142) is pivotally connected to the adjusting member (13).

4. A multi-edge ball-end diamond tool according to claim 2 or 3, characterized in that: The adjusting member (13) is further provided with a sliding portion (131); the fixing member (11) is provided with a positioning portion (112), and the positioning portion (112) is provided with a plurality of positioning grooves (1121); the sliding portion (131) is slidably connected to the adjusting member (13) and is engaged with any of the positioning grooves (1121).

5. A multi-edge ball-end diamond tool according to claim 4, characterized in that: At least two sliding portions (131) are provided, and the number is less than the number of the positioning grooves (1121); the sliding portions (131) are also connected to connecting portions (133), and the connecting portions (133) connect all the sliding portions (131) into one.

6. A multi-edge ball-end diamond tool according to claim 2, characterized in that: The outer surfaces of the second cutting portion (122) and the third cutting portion (123) both fit the hemispherical arc surface and are convex arc surfaces.

7. A multi-edge ball-end diamond tool according to claim 2, characterized in that: The two cutting spaces are symmetrical spaces with the first cutting portion (121) as the center line.

8. The multi-edge ball-end diamond tool according to claim 2, characterized in that: The width of the intervals between adjacent third cutting portions (123) gradually increases from the top area to both ends of the fixing member (11).

9. The multi-edge ball-end diamond tool according to claim 1, characterized in that: The tool handle (2) and the tool head structure (1) are detachably connected.

10. A cutting method for a multi-edge ball-end diamond tool, characterized in that: The multi-edge ball-end diamond tool and cutting device applied to any one of claims 1 to 9 comprises the following cutting method: Tool installation: The tool holder (2) is connected to the cutting device; Milling: The cutting equipment drives the tool into contact with the workpiece and applies milling force; The first cutting portion (121) and the second cutting portion (122) are in contact with the workpiece and a milling force is applied, the first cutting portion (121) removes most of the excess, the remaining machining excess is squeezed by the second cutting portion (122) and the third cutting portion (123), and waste chips are pushed into the spacing groove (110), and the waste chips are discharged through the spacing groove (110); Chip removal: applying vibration or air pressure to the spacing groove (110) to remove chips; Replacement: Disassembly of the tool for replacement or repair, and removal of the milled workpiece to replace the unmilled workpiece.

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