A high-performance compression PCD corn end mill

Abstract

This invention discloses a high-performance compression-type PCD corn milling cutter, specifically relating to the field of milling cutter technology. It includes a reinforced support shank with a connecting assembly. The connecting assembly includes an extension body at one end of the reinforced support shank, with a limiting ring fixedly mounted at one end. An adjustable docking rod is slidably connected to the limiting ring. This invention allows waste chips generated during machining to be discharged through a guide groove, preventing chip accumulation and facilitating machining at different depths. Furthermore, the locking tapered sleeve allows for easy replacement of different types of docking rods and cutter heads by releasing the docking rod clamp. The drainage hole facilitates the connection of external cooling water to the reinforced support shank, allowing water to flow into the shank and drain through the drainage hole, simultaneously cooling the workpiece and cutter head and preventing chip splashing.

Description

Technical Field

[0001] This invention relates to the field of milling cutter technology, and more specifically, to a high-performance compression PCD corn milling cutter. Background Technology

[0002] A corn end mill, also known as a corn cob end mill, is shaped like a corn cob with multiple inserts distributed on the cutter body. It is primarily used for milling contours and is a common tool in rough milling. It boasts excellent cutting performance and high machining efficiency, making it widely used in the roughing or semi-finishing of mechanical parts such as blades, molds, holes, and slots.

[0003] Among them, the patent with announcement number CN112916929A discloses a high-precision PCD corn milling cutter, including a shank and a cutter body. The cutter body is fixedly connected to the shank. Two or more spiral cutting groups are distributed circumferentially from the end of the cutter body away from the shank to the middle of the cutter body. Each cutting group includes two or more tool holders. Each tool holder is fixedly connected to a cutting insert. Multiple cutting inserts in each cutting group are arranged sequentially along the axial direction at a certain spiral angle. The cutting insert at the front end of each cutting group protrudes from the front end face of the cutter body, and its cutting edge has a rounded chamfer on its outer edge. The cutting trajectories between two adjacent cutting inserts in each cutting group have an overlapping part.

[0004] This structure, by employing PCD inserts and an insert arrangement design, possesses superior strength, hardness, and wear resistance. However, it is not easy to adjust the stroke according to requirements, which can limit machining operations. Furthermore, it is not easy to change different insert heads as needed, making it inconvenient to use. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-performance compression PCD corn end mill, which aims to solve the problems mentioned in the background art.

[0006] A high-performance compression PCD corn milling cutter includes a reinforced support shank with a connecting assembly. The connecting assembly includes an extension body at one end of the reinforced support shank, a limiting ring fixedly disposed at one end of the extension body, an adjustable docking rod slidably connected to the limiting ring, and a cutter head fixedly disposed at one end of the docking rod. Several guide grooves are distributed on the outer side of the cutter head, and a support boss is fixedly disposed on one side of the inner wall of each guide groove. A milling edge is disposed at one end of each of the support bosses. A locking cone sleeve is slidably connected to the reinforced support shank, a slip ring is disposed at one end of the locking cone sleeve, the vertical cross-section of the locking cone sleeve is tapered, and a stop cylinder is fixedly disposed in the middle of the locking cone sleeve. One end of the stop cylinder extends onto the slip ring, and the slip ring is sleeved on the docking rod and threadedly connected to the docking rod.

[0007] As can be seen, in the above technical solution, the locking cone sleeve, the connecting rod, and the rotating cutter head enable the workpiece to be processed. The workpiece is milled by contacting the milling edge, while the supporting boss improves the deformation resistance of the milling edge and provides stable support. The waste generated during processing can be discharged through the guide groove to avoid the waste from accumulating. When the locking cone sleeve is not in close contact with the adjusting cylinder, the locking cone sleeve loses its limit, which allows the connecting rod to be adjusted on the locking cone sleeve. This enables the adjustment of the displacement stroke of the connecting rod and the cutter head, making it easy to process different depths. Furthermore, by loosening the locking cone sleeve to clamp the connecting rod, it is also easy to replace different types of connecting rods and cutters.

[0008] Optionally, in one possible implementation, one end of the abutment cylinder is provided with a liner, the liner being located inside the locking cone sleeve. The locking cone sleeve has several first misalignment openings extending through it, and each pair of adjacent first misalignment openings has a second misalignment opening. A threaded groove is provided on the outer side of the locking cone sleeve. An adjusting cylinder is fitted onto the surface of the locking cone sleeve, the adjusting cylinder being located inside a reinforcing support handle. A limiting cavity matching the adjusting cylinder is provided inside the reinforcing support handle, the limiting cavity being rotatably connected to the adjusting cylinder. A conical cavity is provided in the middle of the adjusting cylinder. The conical cavity is threadedly connected to the threaded groove. The vertical cross-sectional shape of the conical cavity is set to conical. A misalignment opening is provided on one side of the inner wall of the limiting cavity. A reinforcing rotating ring is rotatably connected in the misalignment opening. The reinforcing rotating ring is sleeved on the outside of the adjusting cylinder. One end of the reinforcing support handle is rotatably connected to a handle. One end of the handle extends to one end of the adjusting cylinder. A through hole is provided inside the extension body. The docking rod is located in the through hole. A drainage hole is provided at one end of the extension body. A docking ring is sleeved on the outside of the reinforcing support handle. A slot is provided on the outside of the docking ring.

[0009] As can be seen, in the above technical solution, the adjusting cylinder is rotated by rotating the handle. When the adjusting cylinder rotates, the conical cavity rubs against the threaded groove, so that the locking cone sleeve is adjusted in position within the reinforcing support handle by the force of the adjusting cylinder rotation. The vertical cross-sectional shape of both the conical cavity and the locking cone sleeve is set to be conical. When the locking cone sleeve is stored in the conical cavity, the locking cone sleeve is squeezed by the inner wall of the conical cavity, which causes the locking cone sleeve to be stressed and deformed through the second misalignment port and the first misalignment port, thereby realizing the function of locking the docking rod. The setting of the slot and docking ring improves the stability of the reinforcing support handle installed on the processing equipment. The drain hole facilitates the flow of water into the reinforcing support handle when external cooling water is connected to the reinforcing support handle, and the water can be discharged through the drain hole, realizing the simultaneous cooling of the workpiece and the cutting head and the prevention of chip splashing.

[0010] The technical effects and advantages of this invention are as follows:

[0011] 1. This invention achieves the function of machining the workpiece by locking the tapered sleeve, connecting rod and rotating the cutter head. The workpiece is milled by contacting the milling blade, while the supporting boss improves the deformation resistance of the milling blade and provides stable support. The waste generated during machining can be discharged through the guide groove to avoid the waste from accumulating together.

[0012] 2. When the adjusting cylinder rotates, the conical cavity rubs against the threaded groove, so that the force of the locking cone sleeve when the adjusting cylinder rotates is adjusted in the position within the reinforced support handle. The vertical cross-sectional shape of both the conical cavity and the locking cone sleeve is set to be conical. When the locking cone sleeve is housed in the conical cavity, the locking cone sleeve is squeezed by the inner wall of the conical cavity, which causes the locking cone sleeve to be stressed and deformed through the second misalignment port and the first misalignment port, thereby realizing the function of locking the connecting rod.

[0013] 3. When the locking cone sleeve is not in close contact with the adjusting cylinder, the locking cone sleeve loses its limiting position, thereby allowing the docking rod to be adjusted on the locking cone sleeve, realizing the function of adjusting the displacement stroke of the docking rod and the cutter head, which is easy to process at different depths. Furthermore, by loosening the locking cone sleeve to clamp the docking rod, it is also easy to replace different types of docking rods and cutters.

[0014] 4. The present invention improves the stability of the reinforced support handle when it is installed on the processing equipment by setting the slot and docking ring, while the drainage hole facilitates the flow of water into the reinforced support handle and out through the drainage hole when external cooling water is connected to the reinforced support handle, so as to achieve simultaneous cooling of the workpiece and the tool head and avoidance of chip splashing.

[0015] In summary, through the coordinated use of various structures, the waste generated during processing can be discharged through the guide groove, preventing waste from accumulating. The locking cone sleeve is squeezed by the inner wall of the cone cavity, causing it to deform through the second and first misalignment openings, thereby achieving the function of locking the docking rod. The locking cone sleeve loses its limit, allowing the docking rod to be positioned on the locking cone sleeve, thus adjusting the displacement stroke of the docking rod and the cutter head. This facilitates processing at different depths. Furthermore, by loosening the locking cone sleeve to clamp the docking rod, it is easy to replace different types of docking rods and cutters. The drainage hole allows water to be injected into the reinforced support shank and discharged through the drainage hole when external cooling water is connected to it, achieving simultaneous cooling of the workpiece and cutter head and preventing debris from splashing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0017] Figure 1 This is a front view of the overall structure of the present invention.

[0018] Figure 2 This is a side view of the overall structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the locking cone sleeve of the present invention installed inside the reinforcing support handle.

[0020] Figure 4 This is a perspective view of the locking cone sleeve of the present invention.

[0021] Figure 5 For the present invention Figure 1 A schematic diagram of the partial structure at point A in the middle.

[0022] In the diagram: 1. Reinforced support handle; 2. Extension body; 3. Limiting ring; 4. Connecting rod; 5. Cutting head; 6. Guide groove; 7. Support boss; 8. Milling blade; 9. Slip ring; 10. Abutment cylinder; 11. Locking cone sleeve; 12. Liner; 13. First misalignment opening; 14. Second misalignment opening; 15. Threaded groove; 16. Limiting cavity; 17. Adjusting cylinder; 18. Conical cavity; 19. Misalignment opening; 20. Reinforced rotating ring; 21. Rotary handle; 22. Through hole; 23. Drain hole; 24. Connecting ring; 25. Slot. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] As attached Figure 1-5The high-performance compression PCD corn milling cutter shown features a connecting component on the reinforced support shank 1. During machining, the waste chips generated can be discharged through the guide groove 6, preventing them from accumulating. The locking cone sleeve 11 is squeezed by the inner wall of the cone cavity 18, causing it to be stressed and deformed through the second misalignment port 14 and the first misalignment port 13. This achieves the function of locking the connecting rod 4. The locking cone sleeve 11 loses its limit, allowing the connecting rod 4 to be adjusted on the locking cone sleeve 11, thus adjusting the displacement stroke of the connecting rod 4 and the cutter head 5. This facilitates machining at different depths. Furthermore, by releasing the clamping of the connecting rod 4 by the locking cone sleeve 11, it is easy to replace different types of connecting rods 4 and cutter heads 5. The drain hole 23 allows water to be injected into the reinforced support shank 1 and discharged through the drain hole 23 when external cooling water is connected to it. This achieves simultaneous cooling of the workpiece and cutter head 5 and prevention of chip splashing. The specific structural configuration of the component is as follows.

[0025] The connecting assembly includes an extension body 2 disposed at one end of the reinforcing support handle 1. A limiting ring 3 is fixedly disposed at one end of the extension body 2. An adjustable docking rod 4 is slidably connected to the limiting ring 3. A cutting head 5 is fixedly disposed at one end of the docking rod 4. The cutting head 5 is made of carbon composite material. The cutting head 5 utilizes the characteristics of high strength, large specific heat capacity, thermal shock resistance, light weight, stable coefficient of friction, and excellent wear resistance of carbon composite material. In addition, the microstructure and special physical and mechanical properties of the material make the cutting head 5 have a more significant effect on the cutting of materials.

[0026] The outer side of the cutter head 5 has several guide grooves 6, and a support boss 7 is fixedly provided on one side of the inner wall of each guide groove 6. A milling blade 8 is provided at one end of each support boss 7.

[0027] The sliding connection of the reinforcing support handle 1 is provided with a locking cone sleeve 11. One end of the locking cone sleeve 11 is provided with a slip ring 9. The vertical cross-sectional shape of the locking cone sleeve 11 is set as cone. A stop cylinder 10 is fixedly provided in the middle of the locking cone sleeve 11. One end of the stop cylinder 10 extends to the slip ring 9, and the slip ring 9 is sleeved on the docking rod 4 and threadedly connected to the docking rod 4.

[0028] One end of the retaining sleeve 10 is provided with a liner 12, which is located inside the locking cone sleeve 11. Several first misalignment openings 13 are provided through the upper part of the locking cone sleeve 11, and a second misalignment opening 14 is provided for each pair of adjacent first misalignment openings 13. A threaded groove 15 is provided on the outer side of the locking cone sleeve 11. An adjusting sleeve 17 is fitted onto the surface of the locking cone sleeve 11. The adjusting sleeve 17 is located inside the reinforcing support handle 1, and a limiting cavity 16 matching the adjusting sleeve 17 is provided inside the reinforcing support handle 1. The limiting cavity 16 is rotatably connected to the adjusting sleeve 17. A conical cavity 18 is provided in the middle of the adjusting sleeve 17. The tapered cavity 18 is threaded to the groove 15. The vertical cross-section of the tapered cavity 18 is tapered. A misalignment opening 19 is provided on one side of the inner wall of the limiting cavity 16. A reinforcing ring 20 is rotatably connected inside the misalignment opening 19. The reinforcing ring 20 is sleeved on the outside of the adjusting cylinder 17. A handle 21 is rotatably connected to one end of the reinforcing support handle 1. One end of the handle 21 extends to one end of the adjusting cylinder 17. A through hole 22 is provided inside the extension body 2. The docking rod 4 is located inside the through hole 22. A drain hole 23 is provided at one end of the extension body 2. A docking ring 24 is sleeved on the outside of the reinforcing support handle 1. A slot 25 is provided on the outside of the docking ring 24.

[0029] According to the above structure, when in use, the operator installs the device on the processing equipment. The processing equipment drives the docking ring 24 and the reinforcing support handle 1 to rotate, which in turn causes the locking cone sleeve 11, docking rod 4 and cutter head 5 to rotate, realizing the function of processing the workpiece. The milling blade 8 contacts the workpiece to mill it, while the support boss 7 improves the deformation resistance of the milling blade 8 and provides it with stable support. The waste chips generated during processing can be discharged through the guide groove 6 to avoid the waste chips from accumulating together.

[0030] Simultaneously, the rotating handle 21 drives the adjusting cylinder 17 to rotate. When the adjusting cylinder 17 rotates, the conical cavity 18 rubs against the threaded groove 15, so that the force of the locking cone sleeve 11 when the adjusting cylinder 17 rotates is adjusted in the position within the reinforcing support handle 1. The vertical cross-sectional shape of both the conical cavity 18 and the locking cone sleeve 11 is set to be conical. When the locking cone sleeve 11 is housed in the conical cavity 18, the locking cone sleeve 11 is squeezed by the inner wall of the conical cavity 18, which causes the locking cone sleeve 11 to be stressed and deformed through the second misalignment port 14 and the first misalignment port 13, thereby realizing the function of locking the docking rod 4.

[0031] Furthermore, when the locking cone sleeve 11 is not in close contact with the adjusting cylinder 17, the locking cone sleeve 11 loses its limit, thereby allowing the docking rod 4 to be positioned on the locking cone sleeve 11, realizing the function of adjusting the displacement stroke of the docking rod 4 and the cutter head 5, making it easy to process different depths. In addition, by releasing the clamping of the docking rod 4 by the locking cone sleeve 11, it is also easy to replace different types of docking rods 4 and cutter heads 5.

[0032] Furthermore, the design of the slot 25 and the docking ring 24 improves the stability of the reinforced support handle 1 when it is installed on the processing equipment. The drain hole 23 facilitates the flow of water into the reinforced support handle 1 when external cooling water is connected to it, so that the water can be discharged through the drain hole 23, thereby achieving simultaneous cooling of the workpiece and the tool head 5 and preventing the splashing of debris.

[0033] Unlike existing technologies, this application discloses a high-performance compression PCD corn milling cutter. During processing, the waste chips generated can be discharged through the guide groove 6, preventing chip accumulation. The locking cone sleeve 11, compressed by the inner wall of the cone cavity 18, deforms through the second misalignment port 14 and the first misalignment port 13, thereby locking the connecting rod 4. With the locking cone sleeve 11 no longer in place, the connecting rod 4 can be adjusted on the locking cone sleeve 11, allowing for adjustment of the displacement stroke of the connecting rod 4 and the cutter head 5. This facilitates processing at different depths. Furthermore, by releasing the clamping of the connecting rod 4 through the locking cone sleeve 11, it is easy to replace different types of connecting rods 4 and cutter heads 5. The drain hole 23 allows for the connection of external cooling water to the reinforcing support shank 1, with water flowing into the reinforcing support shank 1 and draining through the drain hole 23, simultaneously cooling the workpiece and cutter head 5 and preventing chip splashing.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-performance compression PCD corn end mill, comprising a reinforced support shank (1), characterized in that: A connecting assembly is provided on the reinforcing support handle (1); the connecting assembly includes an extension body (2) provided at one end of the reinforcing support handle (1), a limiting ring (3) is fixedly provided at one end of the extension body (2), an adjustable docking rod (4) is slidably connected to the limiting ring (3), and a cutter head (5) is fixedly provided at one end of the docking rod (4); a plurality of guide grooves (6) are distributed on the outer side of the cutter head (5), and a support boss (7) is fixedly provided on one side of the inner wall of each guide groove (6), and a milling blade (8) is provided at one end of each of the support bosses (7); a locking cone sleeve (11) is slidably connected to the reinforcing support handle (1), and a slip ring (9) is provided at one end of the locking cone sleeve (11); The vertical cross-sectional shape of the locking cone sleeve (11) is set as cone, and a stop cylinder (10) is fixedly provided in the middle of the locking cone sleeve (11). One end of the abutment (10) extends to the slip ring (9), and the slip ring (9) is sleeved on the docking rod (4) and threadedly connected to the docking rod (4); One end of the abutment (10) is provided with a liner (12), which is located inside the locking cone sleeve (11); The upper part of the locking cone sleeve (11) is provided with a number of first misalignment openings (13), and each pair of adjacent first misalignment openings (13) is provided with second misalignment openings (14). The locking cone sleeve (11) has a threaded groove (15) on its outer side, and an adjusting sleeve (17) is fitted on the surface of the locking cone sleeve (11). The adjusting cylinder (17) is located inside the reinforcing support handle (1), and a limiting cavity (16) matching the adjusting cylinder (17) is provided inside the reinforcing support handle (1). The limiting cavity (16) is rotatably connected to the adjusting cylinder (17). The adjusting cylinder (17) has a conical cavity (18) in the middle, and the conical cavity (18) is threadedly connected to the threaded groove (15). The vertical cross-sectional shape of the conical cavity (18) is set to be conical.

2. The high-performance compression PCD corn milling cutter according to claim 1, characterized in that: The inner wall of the limiting cavity (16) is provided with a misalignment opening (19), and a reinforcing rotating ring (20) is rotatably connected inside the misalignment opening (19). The reinforcing rotating ring (20) is sleeved on the outside of the adjusting cylinder (17).

3. The high-performance compression PCD corn milling cutter according to claim 1, characterized in that: One end of the reinforcing support handle (1) is rotatably connected to a handle (21), one end of the handle (21) extends to one end of the adjusting cylinder (17), the inside of the extension body (2) is provided with a through hole (22), the docking rod (4) is located in the through hole (22), and one end of the extension body (2) is provided with a drain hole (23). The outside of the reinforcing support handle (1) is provided with a docking ring (24), and the outside of the docking ring (24) is provided with a slot (25).

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