A milling cutter with anti-vibration and fast plunging cutting function

Abstract

The cam is provided with a toothed plate, the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate.

Description

Technical Field

[0001] The invention relates to the technical field of milling cutters, in particular to a milling cutter capable of shock-resistant and rapid plunge milling. Background Art

[0002] A vibration-resistant milling cutter is a milling cutter specially designed to reduce vibration during the cutting process. It uses a special design and material to improve processing accuracy and extend the service life of the tool. The vibration-resistant milling cutter has a longer shank to facilitate effective reinforcement of a large area when the milling cutter is installed.

[0003] The shank of a milling cutter is the main support component, typically made of a rod-like material. It secures the blade and transmits power. The end of the shank is often chamfered to facilitate loading and unloading the cutter. The diameter and length of the shank are also selected based on the specific processing requirements and machine tool specifications. The cutter body connects the shank to the cutter head, supporting the cutter head and transmitting cutting force. The cutter body is typically equipped with chip-distributing spiral grooves to evacuate chips during cutting, preventing long chips from becoming entangled in the cutter head or cutting edge, which could affect the cutter's performance. The cutter head is the main cutting element of the milling cutter, used for metal cutting. The cutter head is equipped with cutting edges, the shape and number of which are selected based on the specific processing requirements. Common cutting edge shapes include straight teeth and helical teeth. Furthermore, cutter heads can be designed in various styles, such as flat-bottom, fishtail, and drill-tip, depending on the processing requirements.

[0004] In the prior art, after a long period of milling, the cutter head needs to be replaced with the feed edge to ensure the milling effect of the cutter head. However, the cutter head in the prior art is fixed by bolts. When replacing, the bolts need to be completely unscrewed and then the cutter head needs to be reversed. The whole process is quite inconvenient, especially for milling cutters with multiple cutter heads. The operation process is relatively complicated. Therefore, we propose a milling cutter with vibration-resistant and fast plunge milling. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a milling cutter with vibration-resistant and fast plunge milling.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a milling cutter for shock-resistant and fast plunge milling cutting, comprising a cutter body, the outer surface of the cutter body is provided with a plurality of chip grooves arranged in a circular array, the surface of the chip groove is provided with a tool groove, the surface of the tool groove is provided with a narrow sliding mouth, the inner end of the narrow sliding mouth is connected to the wide sliding mouth, the inner side of the wide sliding mouth is slidably connected to a sliding disk, the outer surface of the sliding disk extends to a limiting block, the inner top surface of the wide sliding mouth is provided with a fan-shaped groove, the limit block slides and snaps into the inner side of the fan-shaped groove, the surface of the sliding disk is fixedly connected to a moving shaft, the moving shaft slides through the inner side of the narrow sliding mouth, a tensioning mechanism is provided between the upper surface of the moving shaft and the inner top surface of the narrow sliding mouth, the end of the moving shaft is fixedly connected to a connecting column, the outer surface of the connecting column is rotatably sleeved with a cutter head, the outer surface of the cutter head is provided with a polygonal surface, and the upper surface of the polygonal surface is in contact with the inner top surface of the cutter groove.

[0007] Preferably, the tensioning mechanism includes a fixed cylinder fixedly embedded in the top surface of the narrow sliding mouth, a pull rod is slidably inserted into the lower end of the fixed cylinder, the upper end of the pull rod is fixedly connected to an anti-slip disk, the upper surface of the anti-slip disk is fixedly connected to a tension spring, the upper end of the tension spring is fixedly connected to the inner top surface of the fixed cylinder, the anti-slip disk is slidably fitted with the inner side of the fixed cylinder, and the lower end of the pull rod is rotatably connected to the movable shaft.

[0008] Preferably, a collar is fixedly connected to the lower end of the pull rod, and a ring groove is provided on the outer surface of the movable shaft, and the collar is rotated and snapped into the inner side of the ring groove.

[0009] Preferably, a conical hole is formed through the end face of the cutter head, a clamping sleeve is rotatably sleeved on the outer surface of the connecting column, the clamping sleeve is clamped into the inner side of the conical hole, and an indicator mark is provided at the edge of the end face of the cutter head.

[0010] Preferably, the outer surface fixing sleeve of the connecting column is provided with a fixing ring, the threaded sleeve at the end of the outer surface of the connecting column is provided with a limiting ring, the end face of the clamping sleeve is provided with a hidden groove, and the limiting ring slides into the inner side of the hidden groove.

[0011] Preferably, a plurality of shifting holes are provided on the outer surface of the restriction ring, and expansion holes are provided at the ends of the shifting holes.

[0012] Preferably, a handle is fixedly connected to the upper surface of the knife body, and a positioning portion is provided on the outer surface of the handle.

[0013] Preferably, a hexagonal groove is provided on the end surface of the connecting column, and the connecting column and the movable shaft are integrally formed.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When the cutting tool is replaced, the cutting tool can be quickly replaced by the cutting tool after the cutting tool is replaced.

[0016] 2. After the user fixes the connecting column with a screwdriver, and then uses the rod tool to insert it into the toggle hole, the limiting ring can be rotated to disengage the limiting ring from the connecting column. After that, the clamping sleeve can be slid out of the surface of the connecting column to remove the cutter head, making it easier to replace it later and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a milling cutter for vibration-resistant and rapid plunge milling according to the present invention;

[0018] Figure 2 It is a partial cross-sectional view of the cutter body of a milling cutter for anti-vibration rapid plunging and cutting according to the present invention;

[0019] Figure 3 The invention provides a milling cutter for rapid plunge milling and anti-vibration cutting Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a cross-sectional view of a clamping sleeve of a milling cutter for anti-vibration rapid plunging and cutting according to the present invention;

[0021] Figure 5 The invention provides a milling cutter for rapid plunge milling and anti-vibration cutting Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 This is a cross-sectional view of the wide sliding mouth of a milling cutter for anti-vibration rapid plunging cutting according to the present invention;

[0023] Figure 7 This is a cross-sectional view of the fixed barrel of a milling cutter for anti-vibration rapid plunging and cutting according to the present invention;

[0024] Figure 8 This is a schematic diagram of a disassembled cutter head of a milling cutter for vibration-resistant and rapid plunge milling according to the present invention.

[0025] 1. Cutter body; 2. Chip groove; 3. Cutter groove; 4. Narrow slide; 5. Wide slide; 6. Fan-shaped groove; 7. Moving shaft; 8. Sliding disk; 9. Limit block; 10. Connecting column; 11. Plum blossom groove; 12. Clamping sleeve; 13. Limiting ring; 15. Fixing ring; 16. Ring groove; 17. Sleeve ring; 18. Pull rod; 19. Anti-slip disk; 20. Fixing cylinder; 21. Tension spring; 22. Cutter head; 23. Cone hole; 24. Polygonal surface; 25. Indicator mark; 26. Hidden groove; 27. Toggle hole; 28. Flaring; 29. ​​Cutter handle; 30. Positioning part. DETAILED DESCRIPTION

[0026] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0027] like Figures 1-8 The milling cutter shown in the figure is a vibration-resistant and fast plunge milling cutter, comprising a cutter body 1, the outer surface of the cutter body 1 is provided with a plurality of chip grooves 2 arranged in a circular array, the surface of the chip groove 2 is provided with a tool groove 3, the surface of the tool groove 3 is provided with a narrow slide 4, the inner end of the narrow slide 4 is connected to a wide slide 5, the inner side of the wide slide 5 is slidably connected to a sliding disk 8, the outer surface of the sliding disk 8 extends to a limit block 9, the inner top surface of the wide slide 5 is provided with a fan-shaped groove 6, the limit block 9 is slidably engaged with the inner side of the fan-shaped groove 6, and the sliding disk 8 The surface of the movable shaft 7 is fixedly connected, and the movable shaft 7 slides through the inner side of the narrow sliding opening 4. A tensioning mechanism is provided between the upper surface of the movable shaft 7 and the inner top surface of the narrow sliding opening 4. When the movable shaft 7 moves down along the inner side of the narrow sliding opening 4, the sliding plate 8 slides down along the inner side of the wide sliding opening 5. The end of the movable shaft 7 is fixedly connected to the connecting column 10. The outer surface of the connecting column 10 is rotatably sleeved with a cutter head 22. The outer surface of the cutter head 22 is provided with a polygonal surface 24. The upper surface of the polygonal surface 24 is in contact with the inner top surface of the cutter groove 3. The chip groove 2 is a common design in milling cutters. When the milling cutter rotates, the chips formed by the cutting of the lower side of the cutter head 22 will pass through the chip groove 2 and move upward, achieving the chip removal function, preventing excessive chips from being processed at the workpiece surface and affecting the processing progress. It should be noted that the opening shape of the above-mentioned fan-shaped groove 6 must meet the following requirements: the limit block 9 can rotate at an angle of ninety degrees in the fan-shaped groove 6, and after the limit block 9 rotates ninety degrees, it can slide down along the inner side of the wide sliding opening 5.

[0028] like Figure 2 、 Figure 3 、 Figure 7As shown, the tensioning mechanism includes a fixed cylinder 20 fixedly embedded in the inner top surface of the narrow sliding opening 4, a pull rod 18 is slidably inserted into the lower end of the fixed cylinder 20, an anti-slip disk 19 is fixedly connected to the upper end of the pull rod 18, a tension spring 21 is fixedly connected to the upper surface of the anti-slip disk 19, the upper end of the tension spring 21 is fixedly connected to the inner top surface of the fixed cylinder 20, the anti-slip disk 19 is slidably matched with the inner side of the fixed cylinder 20, and the lower end of the pull rod 18 is rotatably connected to the movable shaft 7. The anti-slip disk 19 plays a limiting role, preventing the pull rod 18 from moving downward excessively and detaching from the inner side of the fixed cylinder 20.

[0029] like Figure 7 As shown, the lower end of the pull rod 18 is fixedly connected to a collar 17, and the outer surface of the movable shaft 7 is provided with an annular groove 16, and the collar 17 is rotated and snapped into the inner side of the annular groove 16. The arrangement of the collar 17 allows the movable shaft 7 to rotate relative to the pull rod 18, and the pull rod 18 to slide down synchronously with the movable shaft 7.

[0030] like Figure 2 、 Figure 3 As shown, the end face of the cutter head 22 is penetrated by a truncated cone hole 23, which is a common design on the cutter head 22. A clamping sleeve 12 is rotatably mounted on the outer surface of the connecting column 10. The clamping sleeve 12 is snapped into the inner side of the truncated cone hole 23. An indicator mark 25 is provided on the edge of the end face of the cutter head 22. The clamping sleeve 12 has a bucket-shaped shape, which can form a push against the inner wall of the truncated cone hole 23, thereby ensuring the stable installation of the cutter head 22.

[0031] like Figure 4 、 Figure 5 As shown, a fixing ring 15 is fixedly mounted on the outer surface of the connecting post 10. A limiting ring 13 is threadedly mounted on the end of the outer surface of the connecting post 10. A recessed groove 26 is formed on the end surface of the clamping sleeve 12, and the limiting ring 13 slides into the inner side of the recessed groove 26. The recessed groove 26 provides space for the installation of the clamping sleeve 12, so that the end surface of the clamping sleeve 12 does not protrude from the end surface of the connecting post 10, thereby ensuring that chip removal is not hindered.

[0032] The outer surface of the restriction ring 13 is provided with a plurality of toggling holes 27, and the end of the toggling hole 27 is provided with a flared opening 28. The design of the flared opening 28 facilitates the insertion of a rod-shaped tool into the inner side of the toggling hole 27, thereby rotating the restriction ring 13.

[0033] like Figure 1 、 Figure 2 As shown, a handle 29 is fixedly connected to the upper surface of the blade body 1, and a positioning portion 30 is provided on the outer surface of the handle 29. The positioning portion 30 is a horizontal section, which facilitates the installation and fixation of the handle 29.

[0034] like Figure 4 As shown, the end surface of the connecting post 10 is provided with a hexagonal groove 11, and the connecting post 10 is integrally formed with the movable shaft 7. It is convenient for a tool such as a screwdriver to be inserted and then the connecting post 10 is rotated.

[0035] When the cutter head 22 needs to be replaced after using it for a period of time, the connecting column 10 is rotated so that the limit block 9 rotates upward along the inner side of the fan-shaped groove 6. At this time, the connecting column 10 will rotate relative to the clamping sleeve 12 and the cutter head 22. After rotating upward, the connecting column 10 is pressed down to move the pull rod 18 downward, pulling the tension spring 21, and the moving shaft 7 moves downward along the inner side of the narrow sliding mouth 4. The sliding plate 8 slides down along the inner side of the wide sliding mouth 5. When it reaches the bottom, the polygonal surface 24 will be away from the inner top surface of the knife groove 3. At this time , the cutter head 22 can be rotated and the feed edge of the cutter head 22 can be quickly replaced. After releasing the hand, under the tension of the tension spring 21, the pull rod 18 will move up and reset, so that the cutter head 22 is again attached to the inner top surface of the knife groove 3. At this time, the connecting column 10 is rotated to make the limit block 9 rotate and reset along the inner side of the fan-shaped groove 6, and cooperate with the tension of the tension spring 21 to achieve the effect of limiting the downward movement of the movable shaft 7. Therefore, it has the function of quickly replacing the feed edge of the cutter head 22, and the operation is convenient and fast.

[0036] After the user fixes the connecting column 10 with a screwdriver, and then uses a rod tool to insert it into the dial hole 27, the limiting ring 13 can be rotated to disengage the limiting ring 13 from the connecting column 10. After that, the clamping sleeve 12 can be slid out of the surface of the connecting column 10, and the cutter head 22 can be removed for later replacement operations, which is convenient to use.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling cutter for anti-vibration rapid plunging cutting, comprising a cutter body (1), characterized in that: The outer surface of the tool body (1) is provided with a plurality of chip grooves (2) arranged in a circular array, the surface of the chip groove (2) is provided with a tool groove (3), the surface of the tool groove (3) is provided with a narrow sliding opening (4), the inner end of the narrow sliding opening (4) is connected to a wide sliding opening (5), the inner side of the wide sliding opening (5) is slidably connected to a sliding disk (8), the outer surface of the sliding disk (8) is extended with a limiting block (9), the inner top surface of the wide sliding opening (5) is provided with a fan-shaped groove (6), the limiting block (9) is slidably engaged with the fan-shaped groove (6) On the inner side, the surface of the sliding disk (8) is fixedly connected to a moving shaft (7), the moving shaft (7) slides through the inner side of the narrow sliding opening (4), a tensioning mechanism is provided between the upper surface of the moving shaft (7) and the inner top surface of the narrow sliding opening (4), the end of the moving shaft (7) is fixedly connected to a connecting column (10), the outer surface of the connecting column (10) is rotatably sleeved with a cutter head (22), the outer surface of the cutter head (22) is provided with a polygonal surface (24), the upper surface of the polygonal surface (24) is in contact with the inner top surface of the knife groove (3); The tensioning mechanism includes a fixed cylinder (20) fixedly embedded in the inner top surface of the narrow sliding opening (4), a pull rod (18) is slidably inserted into the lower end of the fixed cylinder (20), the upper end of the pull rod (18) is fixedly connected to an anti-slip disk (19), the upper surface of the anti-slip disk (19) is fixedly connected to a tension spring (21), the upper end of the tension spring (21) is fixedly connected to the inner top surface of the fixed cylinder (20), the anti-slip disk (19) is slidably matched with the inner side of the fixed cylinder (20), and the lower end of the pull rod (18) is rotationally connected to the movable shaft (7); The lower end of the pull rod (18) is fixedly connected to a collar (17), and an annular groove (16) is provided on the outer surface of the movable shaft (7). The collar (17) is rotated and snapped into the inner side of the annular groove (16).

2. The milling cutter for anti-vibration rapid plunging cutting according to claim 1, characterized in that: A truncated cone hole (23) is formed through the end surface of the cutter head (22), a clamping sleeve (12) is rotatably sleeved on the outer surface of the connecting column (10), and the clamping sleeve (12) is clamped into the inner side of the truncated cone hole (23). An indicator mark (25) is provided at the edge of the end surface of the cutter head (22).

3. The milling cutter for anti-vibration rapid plunging cutting according to claim 2, characterized in that: The outer surface of the connecting column (10) is fixed with a fixing ring (15), and the end of the outer surface of the connecting column (10) is threadedly provided with a limiting ring (13). The end surface of the clamping sleeve (12) is provided with a recessed groove (26), and the limiting ring (13) is slidably inserted into the inner side of the recessed groove (26).

4. The vibration-resistant fast plunging milling cutter according to claim 3, characterized in that: The outer surface of the limiting ring (13) is provided with a plurality of shifting holes (27), and the ends of the shifting holes (27) are provided with flared openings (28).

5. The vibration-resistant and rapid plunge milling cutter according to claim 1, characterized in that: A knife handle (29) is fixedly connected to the upper surface of the knife body (1), and a positioning portion (30) is provided on the outer surface of the knife handle (29).

6. The vibration-resistant fast plunging milling cutter according to claim 1, characterized in that: The end surface of the connecting column (10) is provided with a hexagram groove (11), and the connecting column (10) and the movable shaft (7) are integrally formed.

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