Machining equipment and milling cutter thereof
By designing chip drain and drain tank structures on the milling cutter tool, the temperature overheating problem caused by waste chip blockage is solved, and the waste chip is easily discharged and the tool cooling is achieved, reducing wear and cracking.
Patent Information
- Application Number
- CN202421970817.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-14
AI Technical Summary
During high-speed drilling, the scraps of milling cutter tools are easily blocked, causing temperature overheating, which in turn causes wear and cracking problems.
A milling cutter tool is designed, including the tool body, a long blade and a short blade. The long blade and a short blade are alternately arranged to form a chip drain, combining the air evacuation part and a drainage groove for guiding cooling water and draining waste chips.
Effectively discharge waste chips, reduce tool wear and cracking, and improve tool life.
Smart Images
Figure CN223070498U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cutting tools, in particular to a processing device and a milling cutter thereof. Background Art
[0002] During high-speed drilling, the waste chips generated during the processing of the milling cutter are easily blocked on the milling cutter and difficult to discharge in time, resulting in overheating of the milling cutter, which is likely to cause tool wear and chipping problems. Content of the Utility Model
[0003] The purpose of the utility model is to provide a processing device and a milling cutter thereof, which can easily discharge waste chips and reduce tool wear and chipping problems.
[0004] To achieve the above purpose, the utility model provides a milling cutter, including:
[0005] A tool body having an end face, a circumferential face and a transition face, the end face and the circumferential face are connected by the transition face, the transition face is an arc surface recessed into the tool body, an avoidance part recessed into the tool body is arranged on the end face, a drainage groove is arranged on the transition face, and the drainage groove is communicated with the avoidance part;
[0006] A long edge is arranged on the transition face, one end of the long edge extends to the circumferential face, the other end of the long edge extends to the end face, a plurality of long edges are arranged and evenly spaced from each other, and a chip discharge groove is formed between two adjacent long edges;
[0007] A short edge is arranged on the transition face, one end of the short edge extends to the circumferential face, the other end of the short edge extends towards the end face, a plurality of short edges are arranged and located in the chip discharge groove, and the short edges and the long edges are arranged alternately.
[0008] In some embodiments of the present application:
[0009] The other end of the long edge extends to the end face, and the end face of the other end of the long edge is flush with the end face.
[0010] In some embodiments of the present application:
[0011] A notch part is arranged on the end face, and the avoidance part and the drainage groove are communicated through the notch part.
[0012] In some embodiments of the present application:
[0013] The notch part is in a groove shape, and the bottom of the notch part is smoothly transitioned with the bottom of the drainage groove.
[0014] In some embodiments of the present application:
[0015] The number of the drainage grooves is 2 - 4, and a plurality of the drainage grooves are evenly spaced on the transition surface. The groove depth of the drainage groove is 0.8 - 1.5 mm;
[0016] The intervals between adjacent short blades and long blades are consistent. The distance between adjacent long blades is denoted as the first distance, and the distance between adjacent long blades and short blades is denoted as the second distance. The groove width of the drainage groove is the sum of the first distance and the second distance. The measurement endpoints of the groove width, the first distance, and the second distance are located on the circumference of the same circle, and the center of the circle is on the axis of the tool body.
[0017] In some embodiments of the present application:
[0018] The groove width of the drainage groove gradually increases from the end close to the relief portion to the end away from the relief portion.
[0019] In some embodiments of the present application:
[0020] Both the long blade and the short blade are arc-shaped, and the shapes of the long blade and the short blade match each other. The groove wall of the drainage groove is an arc surface matching the shape of the long blade.
[0021] In some embodiments of the present application:
[0022] The length of the short blade is 1 / 2 - 2 / 3 of the length of the long blade.
[0023] In some embodiments of the present application:
[0024] The tool body, the long blade, and the short blade are integrally formed.
[0025] In some embodiments of the present application, the milling cutter tool further includes:
[0026] A tool handle connected to the tool body.
[0027] The present utility model further provides a processing device, including:
[0028] A power device;
[0029] A clamping device;
[0030] The milling cutter tool as described in any of the above paragraphs, the clamping device clamps the milling cutter tool, and the power device drives the milling cutter tool to rotate.
[0031] The present utility model provides a milling cutter tool. Compared with the prior art, its beneficial effects are as follows:
[0032] The milling cutter tool of the present utility model includes a tool body, long cutting edges and short cutting edges. Chip discharge grooves are formed between the long cutting edges, and the short cutting edges are located within the chip discharge grooves. Both the long cutting edges and the short cutting edges are used for machining workpieces. The provision of the short cutting edges can prevent the cutting edges from being too dense, which is beneficial to the discharge of chips. An emptying portion and a drainage groove are provided on the tool body. By providing the emptying portion and the drainage groove, cooling water can be guided. Part of the cooling water flows away through the drainage groove, and part of the cooling water flushes the chip discharge grooves to assist in the discharge of chips. Moreover, such a structure can also facilitate the cooling of the milling cutter tool by the cooling water, reducing tool wear and chipping problems.
[0033] The processing equipment of the present utility model includes the above-mentioned milling cutter tool, which can easily discharge waste chips and reduce tool wear and chipping problems. Description of the Drawings
[0034] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.
[0035] In the figure, 1. Tool body; 2. Long cutting edge; 3. Short cutting edge; 4. Chip discharge groove; 11. End face; 12. Peripheral surface; 13. Transition surface; 14. Emptying portion; 15. Drainage groove; 16. Notch portion; L. First distance; D. Second distance. Detailed Embodiments
[0036] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.
[0037] In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0039] In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0040] For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0041] Please refer to Figure 1 , a milling cutter of a preferred embodiment of the present utility model embodiment includes: a cutter body 1, a long cutting edge 2, and a short cutting edge 3.
[0042] The cutter body 1 has an end face 11, a peripheral face 12, and a transition face 13. The end face 11 and the peripheral face 12 are connected by the transition face 13. The transition face 13 is an arc surface recessed into the cutter body 1. An avoidance portion 14 recessed into the cutter body 1 is provided on the end face 11. A drainage groove 15 is provided on the transition face 13. The drainage groove 15 communicates with the avoidance portion 14.
[0043] The long cutting edge 2 is provided on the transition face 13. One end of the long cutting edge 2 extends to the peripheral face 12, and the other end of the long cutting edge 2 extends to the end face 11. The long cutting edge 2 is provided in plurality and is evenly spaced from each other. A chip discharge groove 4 is formed between two adjacent long cutting edges 2. It should be noted that the other end of the long cutting edge 2 can be flush with the end face 11 or protrude from the end face 11, that is, the end face of the other end of the long cutting edge 2 protrudes from the end face of the cutter body 1 or is flush with the end face of the cutter body 1.
[0044] The short cutting edge 3 is provided on the transition face 13. One end of the short cutting edge 3 extends to the peripheral face 12, and the other end of the short cutting edge 3 extends towards the end face 11. The short cutting edge 3 is provided in plurality and is located in the chip discharge groove 4. The short cutting edge 3 and the long cutting edge 2 are alternately arranged.
[0045] Both the long cutting edge 2 and the short cutting edge 3 are used for machining workpieces. The setting of the short cutting edge 3 enables only the long cutting edge 2 to be present in the part of the transition face 13 close to the end face 11, while both the long cutting edge 2 and the short cutting edge 3 are present in the part of the transition face 13 close to the peripheral face 12. With such a structure, it is possible to prevent the cutting edges from being too dense in the part of the transition face 13 close to the end face 11, and the chips can be easily discharged from the chip discharge groove 4. Moreover, this can also prevent tool marks from being generated on the workpiece.
[0046] When the milling cutter processes the workpiece, cooling water will be used to help with cooling. The avoidance portion 14 and the drainage groove 15 are provided on the cutter body 1. The avoidance portion 14 and the drainage groove 15 can guide the cooling water reflected from the workpiece onto the cutter body 1. Part of the cooling water flows away from the drainage groove 15, and part of the cooling water flushes the chip discharge groove 4. The avoidance portion 14 can guide the cooling water into the drainage groove 15. Thus, it helps to discharge the chips generated during machining, and such a structure can also facilitate the cooling water to cool the milling cutter, reducing tool wear and chipping problems.
[0047] In some embodiments, a notch portion 16 is provided on the end face 11. The clearance portion 14 and the drainage groove 15 are communicated through the notch portion 16. The notch portion 16 is also set to be a position recessed into the tool body 1, and at least a part of the notch portion 16 is located at the edge of the end face 11, so as to facilitate the cooling water in the clearance portion 14 to enter the drainage groove 15 through the notch portion 16.
[0048] The notch portion 16 is in a groove shape, and the bottom of the groove of the notch portion 16 is smoothly transitioned to the bottom of the groove of the drainage groove 15. With such a structure, the resistance of the cooling water passing through the notch portion 16 can be reduced, and the function of guiding the cooling water into the drainage groove 15 can be better achieved. Specifically, the bottom of the groove of the notch portion 16 can be set as an arc surface to facilitate the smooth transition of the notch portion 16 to the bottom of the groove of the drainage groove 15.
[0049] The number of the drainage grooves 15 is 2 - 4, and the plurality of drainage grooves 15 are evenly spaced on the transition surface 13. The depth of the groove of the drainage groove 15 is 0.8 - 1.5 mm. The plurality of drainage grooves 15 can facilitate the discharge of the cooling water, and can also cool the milling cutter tool more evenly. When the depth of the groove of the drainage groove 15 is set within this range, it can not only play the role of discharging the cooling water, but also meet the cooling requirements of the milling cutter tool, and at the same time meet the milling requirements and the tool strength requirements.
[0050] In some embodiments, the intervals between adjacent short blades 3 and long blades 2 are consistent. The distance between adjacent long blades 2 is denoted as the first distance L, and the distance between adjacent long blade 2 and short blade 3 is denoted as the second distance D. The groove width of the drainage groove 15 is the sum of the first distance L and the second distance D.
[0051] It should be pointed out here that since there is also a case where the groove width of the drainage groove 15 is unevenly set, the sum of the first distance L and the second distance D corresponding to the groove width of the drainage groove 15, the position of the groove width of the drainage groove 15 is the same as the positions where the first distance L and the second distance D are located, that is, the measurement endpoints of the groove width, the first distance L and the second distance D are located on the circumference of the same circle, and the center of the circle is on the axis of the tool body.
[0052] For example, the groove width at the opening of the drainage groove 15 on the circumferential surface 12 is the first distance L and the second distance D related to the long blade 2 and the short blade 3 extending to the position of the circumferential surface 12. The groove width of the drainage groove 15 near the port, the first distance L is still the corresponding first distance L here, and there is only the long blade 2 at the corresponding position without the short blade 3. The second distance D extends along its own existing shape of the short blade 3 towards the end face 11 until it extends to the position corresponding to the groove width of the aforementioned drainage groove 15, and the second distance D is determined by this extension line.
[0053] In some embodiments, the groove width of the drainage groove 15 gradually increases from the end close to the clearance portion 14 to the end away from the clearance portion 14.
[0054] With such a structure, when the cooling water is discharged from the drainage groove 15, the groove width of the drainage groove 15 becomes larger and larger, which can facilitate the flow of the cooling water in the drainage groove 15 and improve the drainage speed.
[0055] In some embodiments, both the long blade 2 and the short blade 3 are arc-shaped, and the shapes of the long blade 2 and the short blade 3 match each other. The groove wall of the drainage groove 15 is an arc surface that matches the shape of the long blade 2. Shape matching means that the shape characteristics are similar, such as Figure 1 in the form shown. Of course, the arc angles of the long blade 2 and the short blade 3 can also be set differently, or the long blade 2 and the short blade 3 can be arranged in a cross pattern.
[0056] In other embodiments, the long blade 2 and the short blade 3 can also be radially straight lines, or wavy lines with matching shapes.
[0057] In some embodiments, the length of the short blade 3 is 1 / 2 - 2 / 3 of the length of the long blade 2. Within this range, only the long blade 2 exists in the part of the transition surface 13 close to the end surface 11, and both the long blade 2 and the short blade 3 exist in the part of the transition surface 13 close to the circumferential surface 12. The long blade 2 and the short blade 3 play a milling role. The short blade 3 decreases near the end surface 11, so that the total number of cutting edges in the part close to the end surface 11 decreases, avoiding too dense cutting edges, making it difficult for chips to be discharged, and avoiding too many cutting edges from generating tool marks on the workpiece.
[0058] In some embodiments, the tool body 1, the long blade 2, and the short blade 3 are integrally formed. The tool body 1, the long blade 2, and the short blade 3 are an integral structure, and the long blade 2 and the short blade 3 can be formed by machining on the tool body 1.
[0059] In some embodiments, the milling cutter tool further includes a tool holder connected to the tool body 1. The tool holder is used to connect the tool body 1 and can also provide a connection position with other structures or other devices.
[0060] This embodiment also provides a processing device, including a power device, a clamping device, and the above-mentioned milling cutter tool. The clamping device clamps the milling cutter tool, and the power device drives the milling cutter tool.
[0061] The clamping device can clamp the milling cutter tool by clamping the tool holder, and the power device drives the milling cutter tool to rotate to process the workpiece through the milling cutter tool.
[0062] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.
Claims
1. A milling cutter tool, characterized in that, Comprising: A tool body having an end face, a circumferential face, and a transition face. The end face and the circumferential face are connected by the transition face. The transition face is an arc face recessed into the interior of the tool body. An avoidance portion recessed into the interior of the tool body is provided on the end face. A drainage groove is provided on the transition face, and the drainage groove communicates with the avoidance portion. A long cutting edge is provided on the transition face. One end of the long cutting edge extends to the circumferential face, and the other end of the long cutting edge extends to the end face. The long cutting edges are provided in plurality and are evenly spaced from each other. A chip evacuation groove is formed between two adjacent long cutting edges. A short cutting edge is provided on the transition face. One end of the short cutting edge extends to the circumferential face, and the other end of the short cutting edge extends towards the end face. The short cutting edges are provided in plurality and are located in the chip evacuation grooves. The short cutting edges and the long cutting edges are arranged alternately.
2. The milling cutter tool according to claim 1, wherein: The other end of the long cutting edge extends to the end face, and the end face of the other end of the long cutting edge is flush with the end face.
3. The milling cutter tool according to claim 1, wherein: A notch portion is provided on the end face, and the avoidance portion and the drainage groove are connected through the notch portion.
4. The milling cutter tool according to claim 3, wherein: The notch portion is in a groove shape, and the bottom of the notch portion and the bottom of the drainage groove are in smooth transition.
5. The milling cutter tool according to claim 1, wherein: The number of the drainage grooves is 2 - 4. The plurality of drainage grooves are evenly spaced on the transition face. The depth of the drainage groove is 0.8 - 1.5 mm. The intervals between adjacent short cutting edges and long cutting edges are the same. The distance between two adjacent long cutting edges is denoted as the first distance, and the distance between an adjacent long cutting edge and short cutting edge is denoted as the second distance. The width of the drainage groove is the sum of the first distance and the second distance. The measuring endpoints of the groove width, the first distance, and the second distance are located on the circumference of the same circle, and the center of the circle is on the axis of the tool body.
6. The milling cutter tool according to claim 1, wherein: The groove width of the drainage groove gradually increases from the end close to the avoidance portion to the end away from the avoidance portion.
7. The milling cutter tool according to claim 1, wherein: Both the long cutting edge and the short cutting edge are arc-shaped, and the shapes of the long cutting edge and the short cutting edge match each other. The groove wall of the drainage groove is an arc face matching the shape of the long cutting edge.
8. The milling cutter tool according to claim 1, wherein: The length of the short cutting edge is 1 / 2 - 2 / 3 of the length of the long cutting edge.
9. The milling cutter tool according to claim 1, wherein: The tool body, the long cutting edge, and the short cutting edge are integrally formed.
10. The milling cutter tool according to claim 1, characterized in that, Further comprising: A tool shank connected to the tool body.
11. A processing device, characterized in that, Comprising: A power device; A clamping device; The milling cutter tool according to any one of claims 1 - 10. The clamping device clamps the milling cutter tool, and the power device drives the milling cutter tool to rotate.