Whirlwind mill capable of being finely adjusted

Abstract

The fine-adjustable whirlwind mill comprises a disc body, at least two containing grooves are formed in the disc body, a tool apron is arranged in each containing groove, fine adjustment grooves are formed in the ends, close to the inner circumferential side of the disc body, of the containing grooves, moving grooves are formed in the other ends of the containing grooves, driving grooves are formed in the inner bottom walls of the moving grooves, and the tool aprons are in sliding fit with the fine adjustment grooves. A blade is connected to the tool apron through a connecting bolt, an adjusting block is slidably connected to the interior of each moving groove and abuts against the outer side wall of the blade, a driving column is arranged on each adjusting block in a penetrating mode, each driving column is slidably connected into the corresponding driving groove, and an adjusting bolt is connected into each driving groove in a threaded mode. The adjusting bolt rotates to push the driving column to drive the adjusting block to push the blade to move in the fine adjustment groove. The effect of improving the workpiece machining quality of the milling cutter is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of milling cutters, and in particular to a fine-adjustable whirlwind milling machine. Background Art

[0002] A cyclone milling cutter is a cutting tool mainly used for thread, spherical or worm milling. It usually includes a cutter disc with multiple blades evenly installed circumferentially on the cutter disc. When milling a workpiece, the cutter disc is inserted into the machine tool spindle, and the machine tool spindle drives the multiple blades on the cutter disc to rotate and mill the workpiece.

[0003] However, in actual operation, due to the uneven hardness of various parts of the workpiece, or the blade begins to wear after long-term milling, as the use time increases, the blade lengths of each blade extending out of the cutter disc are inconsistent. At this time, the tips of multiple blades are not on the same ring, which will result in subsequent processing. The longer blades are subject to more cutting forces, while the shorter blades are not sufficiently involved and are subject to less force. This causes uneven force on multiple blades on the cutter disc, resulting in lower flatness of the workpiece's machined surface and reduced machining quality of the milling cutter, which is an obvious shortcoming. Summary of the invention

[0004] In order to improve the processing quality of a milling cutter on a workpiece, the present application provides a fine-adjustable whirlwind milling machine.

[0005] The present application provides a fine-tunable whirlwind milling machine that adopts the following technical solution: A fine-adjustable whirlwind milling machine comprises a disc body, an inner hole is formed at the center of the disc body, at least two placement grooves are formed on the disc body, a fine-adjustment groove is formed at the end of the placement groove close to the inner circumference of the disc body, and a moving groove is formed at the other end, the end of the fine-adjustment groove extends toward the inner hole, a driving groove is formed on the inner bottom wall of the moving groove, and the end of the driving groove extends to the outer circumference of the disc body; A knife seat, the knife seat is placed in the placement groove, the knife seat is slidably matched with the fine-tuning groove, a blade is connected to the knife seat through a connecting bolt, and the cutting edge of the blade extends toward the center of the inner hole; An adjusting block, wherein the adjusting block is slidably connected to the inside of the movable groove, the surface of the adjusting block facing the blade abuts against the outer wall of the blade, a driving column is passed through the adjusting block, the bottom end of the driving column is slidably connected to the inside of the driving groove, an adjusting bolt is threadedly connected to the driving groove, and the end of the adjusting bolt abuts against the outer surface of the driving column.

[0006] By adopting the above technical solution, when the blade tip retracts due to wear, the user first loosens the connecting bolt to ensure that the tool holder can move smoothly in the fine-tuning groove, and then turns the adjusting bolt. The end of the adjusting bolt pushes the driving column to move along the driving groove toward the tool holder, and the driving column drives the adjusting block to move. The adjusting block pushes the blade and the tool holder to move along the fine-tuning groove, and drives the tip of the blade toward the center of the inner hole during the movement. After the blade is fine-tuned into place, the user tightens the connecting bolt to ensure that the blade is fastened in the tool holder and the fine-tuning groove, and the fine-tuning work is completed. This setting realizes the fine-tuning of the blade edge of the worn blade, thereby ensuring that the tips of multiple blades are on the same ring, evenly sharing the cutting force, and improving the processing quality of the milling cutter on the workpiece.

[0007] Optionally, a clamping bolt is passed through the adjustment block, the clamping bolt passes through the disk body and cooperates with the disk body thread, the end of the clamping bolt abuts against the outer surface of the adjustment block, and the adjustment block is provided with a waist-shaped hole that slides with the clamping bolt.

[0008] By adopting the above technical solution, when adjusting, loosen the clamping bolt, and the adjusting block moves to cause the clamping bolt to be displaced in the waist-shaped hole; when the adjustment block is adjusted, the user tightens the clamping bolt and fastens the adjustment block to the disk body through the clamping bolt, which effectively prevents the adjustment block from retreating or shifting due to vibration during processing, thereby ensuring the stability of the blade position after fine-tuning.

[0009] Optionally, the disk body is provided with positioning grooves corresponding to the multiple tool seats one by one, and the positioning groove is arranged on the side of the fine-tuning groove away from the placement groove. The interior of the positioning groove is fixedly connected to a limit block by installing bolts, and the end face of the limit block close to the adjustment block is provided with a guide bevel, and the inclination direction of the guide bevel is parallel to the length direction of the adjustment block, and the outer surface of the adjustment block is slidably matched with the guide bevel.

[0010] By adopting the above technical solution, the guiding inclined surface of the limit block slides and fits with the outer surface of the adjustment block, guiding the adjustment block to move in a predetermined direction, avoiding deflection or jamming of the adjustment block during fine-tuning, thereby making the radial adjustment path of the blade more controllable and effectively avoiding fine-tuning errors caused by deflection or jamming.

[0011] Optionally, the end face of the limit block close to the tool holder is a limit surface, the length direction of the limit surface is parallel to the radial direction of the blade, and when the tool holder is arranged in the placement groove, a gap for compensating for the fine-tuning margin is formed between the limit surface and the outer surface of the blade facing away from the movable groove.

[0012] By adopting the above technical solution, the gap between the limit surface and the blade not only provides a compensation margin for radial fine-tuning of the blade, but also forms a clear adjustment limit through the physical abutment of the limit surface. When the blade needs to be adjusted multiple times to abut against the limit surface due to wear, it indicates that the blade has reached the maximum adjustment stroke, prompting the user to replace the worn blade in time, avoiding the personal subjective error of judging the timing of blade replacement based on experience, and effectively avoiding the sudden increase in cutting force or deterioration of machining accuracy caused by excessive use of the blade, thereby further improving the machining accuracy of the workpiece.

[0013] Optionally, a positioning column is provided inside the positioning groove, and a positioning hole which is slidably matched with the positioning column is opened on the limit block.

[0014] By adopting the above technical solution, the fast pre-positioning of the limit block is achieved through the sliding cooperation between the positioning column and the positioning hole, which reduces the installation error of the limit block and ensures that the guiding inclined surface and the limit surface are installed in place.

[0015] Optionally, a chip removal groove is provided on the limit block, and the chip removal groove is arranged on the limit surface. The limit block is provided with a chip guide block along the width direction, the cross-sectional width of the chip guide block is the same as the gap width, the height of the bottom surface of the blade is higher than the height of the upper surface of the chip guide block, and when the blade is not adjusted, the relative outer surfaces of the blade and the chip guide block are in the same plane.

[0016] By adopting the above technical solution, the chip removal groove is effectively provided to guide the chip discharge. At the same time, during the blade adjustment process, the chip guide block always blocks the gap between the blade and the limit block, so that the bottom of the chip removal groove is always in a closed state, effectively preventing the chips from falling between the limit surface and the blade, reducing the aggravated blade wear caused by chip retention, and extending the service life of the blade.

[0017] Optionally, the disc body is provided with limiting grooves corresponding to the plurality of blade seats one by one, each limiting groove is threadedly connected with a limiting pin, and the limiting pin abuts against the outer wall of the blade away from the center hole.

[0018] By adopting the above technical solution, after the fine-tuning of the blade is completed, the limit pin is screwed into the limit groove and the limit pin is abutted against the outer surface of the blade. The limit pin and the adjustment block form a two-way limit constraint on the blade, which effectively suppresses the radial movement of the blade caused by cutting force fluctuations and ensures the stability of the blade position after fine-tuning.

[0019] Optionally, a fastening groove is formed on the inner side wall of each of the limiting grooves, the end of the fastening groove extends to the outer surface of the disk body, a fastening bolt is threadedly connected to the fastening groove, and the end face of the fastening bolt abuts against the outer surface of the limiting pin.

[0020] By adopting the above technical solution, after the limit pin is installed, the user tightens the fastening bolt so that the end of the fastening bolt abuts against the limit pin, thereby improving the stability of the limit pin in the disk body, avoiding the limit pin from loosening due to vibration or impact during long-term use, and ensuring that the limit pin continues to have an effective limiting effect on the blade.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The embodiment of the present application sets an adjusting bolt and an adjusting block. When the blade tip retracts due to wear, the user first loosens the connecting bolt to ensure that the knife seat can move smoothly in the fine-tuning slot, and then rotates the adjusting bolt. The end of the adjusting bolt pushes the driving column to move along the driving slot toward the knife seat. The driving column drives the adjusting block to move. The adjusting block pushes the blade and the knife seat to move along the fine-tuning slot. During the movement, the tip of the blade is driven to move toward the center of the inner hole. After the blade is fine-tuned in place, the user tightens the connecting bolt to ensure that the blade is fastened in the knife seat and the fine-tuning slot. The fine-tuning work is completed. This setting realizes the fine-tuning of the worn blade edge, thereby ensuring that the tips of multiple blades are on the same ring, evenly sharing the cutting force, and improving the processing quality of the milling cutter on the workpiece; 2. In the embodiment of the present application, by setting a limit block and a limit surface, the gap between the limit surface and the blade not only provides a compensation margin for radial fine-tuning of the blade, but also forms a clear adjustment limit through the physical contact of the limit surface. When the blade needs to be adjusted several times to abut against the limit surface due to wear, it indicates that the blade has reached the maximum adjustment stroke, prompting the user to replace the worn blade in time, avoiding the personal subjective error of judging the timing of blade replacement based on experience, and effectively avoiding the excessive use of the blade, which leads to a sudden increase in cutting force or deterioration of machining accuracy, thereby further improving the machining accuracy of the workpiece; 3. The embodiment of the present application sets a limit pin and a fastening bolt, and forms a two-way limit constraint on the blade through the limit pin and the adjustment block, thereby effectively suppressing the radial movement of the blade caused by cutting force fluctuations and ensuring the stability of the blade position after fine-tuning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of this application.

[0023] Figure 2 It is a top view of the disk body in the embodiment of the present application.

[0024] Figure 3 It is a cross-sectional view of the movable groove in the embodiment of the present application.

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0026] Figure 5 It is a schematic diagram of the structure of the limit block in the embodiment of the present application.

[0027] Figure 6 It is a cross-sectional view of the limiting groove and the fastening groove in the embodiment of the present application.

[0028] Explanation of the accompanying drawings: 01, blade; 1, disk body; 101, inner hole; 102, mounting hole; 2, placement slot; 21, fine-tuning slot; 22, moving slot; 221, driving slot; 3, tool holder; 31, connecting bolt; 4, adjusting block; 41, driving column; 42, clamping bolt; 43, waist-shaped hole; 5, adjusting bolt; 6, positioning slot; 61, mounting bolt; 62, positioning column; 7, limiting block; 71, positioning hole; 72, guide ramp; 73, limiting surface; 8, chip removal slot; 81, chip guide block; 9, limiting slot; 91, limiting pin; 10, fastening slot; 1001, fastening bolt. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a fine-tunable whirlwind milling machine.

[0031] Reference Figure 1 A fine-tunable whirlwind milling machine includes a disc body 1, an inner hole 101 is opened at the center of the disc body 1, and the inner hole 101 is for a workpiece to pass through. Six mounting holes 102 are evenly opened on the outer circumference of the disc body 1. Bolts can be inserted into each mounting hole 102 to achieve the connection between the disc body 1 and the cutter head.

[0032] Reference Figure 1 , Figure 2 and Figure 3 Six placement grooves 2 are provided on the upper surface of the disc body 1, and the six placement grooves 2 are evenly distributed around the rotation axis of the disc body 1. A tool seat 3 is placed inside each placement groove 2. The tool seat 3 is a T-shaped seat. The cross-section of the tool seat 3 near the bottom end of the placement groove 2 is larger than the other end. A blade 01 is fixedly installed on the tool seat 3 by a connecting bolt 31. The cutting edge of the blade 01 extends toward the center of the inner hole 101, and the workpiece in the inner hole 101 is processed by the cutting force of the six blades 01.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A fine-tuning groove 21 is provided at the end of each placement groove 2 close to the inner circumference of the disk body 1, and the end of the fine-tuning groove 21 extends along the inclined direction toward the inner hole 101. The fine-tuning groove 21 has the same cross-section as the tool holder 3, and the end of the tool holder 3 with a larger cross-section is slidably connected to the bottom end of the fine-tuning groove 21. When the connecting bolt 31 is tightened, the connecting bolt 31 drives the sliding part of the tool holder 3 to abut against the inner wall of the fine-tuning groove 21 to achieve locking of the blade 01.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A movable groove 22 is provided on the outer peripheral side of each placement groove 2 close to the disk body 1, and the end of the movable groove 22 extends toward the outer peripheral side of the disk body 1 along the inclined direction. A driving groove 221 is provided on the inner bottom wall of each movable groove 22 close to the outside of the disk body 1, and the length direction of the driving groove 221 is parallel to the length direction of the movable groove 22. An adjusting block 4 is slidably connected inside each movable groove 22. When the blade 01 is not worn, the end face of the adjusting block 4 facing the blade 01 abuts against the outer surface of the blade 01.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A driving column 41 is penetrated by the end of the adjusting block 4 away from the blade 01, and the bottom end of the driving column 41 is slidably connected to the inside of the driving groove 221. An adjusting bolt 5 is threadedly connected on the inner wall of the driving groove 221 close to the outer peripheral side of the disk body 1. In the present embodiment, the adjusting bolt 5 is a hexagon socket bolt, and the end of the adjusting bolt 5 abuts against the outer surface of the driving column 41.

[0036] Reference Figure 1 , Figure 2 and Figure 3 In order to improve the stability of the adjustment block 4 inside the moving groove 22, each adjustment block 4 is provided with a clamping bolt 42, the bottom of the clamping bolt 42 passes through the disk body 1 and is threadedly engaged with the disk body 1, and the upper end surface of the clamping bolt 42 abuts against the outer surface of the adjustment block 4, and the adjustment block 4 is provided with a waist-shaped hole 43 that slides with the clamping bolt 42, and the waist-shaped hole 43 is parallel to the length direction of the moving groove 22.

[0037] When the tip of the blade 01 retracts due to wear, the user first loosens the connecting bolt 31 to ensure that the blade holder 3 can move smoothly in the fine-tuning slot 21, and then loosens the clamping bolt 42 to allow the adjusting block 4 to move smoothly along the length direction of the moving slot 22. Finally, the user rotates the adjusting bolt 5 according to the degree of wear. Since the adjusting bolt 5 is threadedly matched with the driving slot 221, the adjusting bolt 5 pushes the driving column 41 to move along the driving slot 221 toward the blade holder 3 during rotation, and the driving column 41 drives the adjusting block 4 to move along the moving slot 22 toward the placement slot 2. At this time, the adjusting block 4 pushes the blade holder 3 from the placement slot 2 to the inside of the fine-tuning slot 21, and drives the tip of the blade 01 to move radially toward the central inner hole 101 during the movement of the blade holder 3. When blade 01 is fine-tuned to the point where the tips of the blades 01 are on the same ring as those of the other blades 01, the user tightens the connecting bolt 31 to ensure that blade 01 and tool holder 3 are fastened in the fine-tuning groove 21, and then tightens the clamping bolt 42 to fasten the adjustment block 4 to the disk body 1 to prevent the adjustment block 4 from retreating or shifting due to vibration during machining. The fine-tuning work is now completed. This arrangement achieves fine-tuning of the blade edge of the worn blade 01, thereby ensuring that the tips of multiple blades 01 are on the same ring, evenly sharing the cutting force, and improving the machining quality of the milling cutter on the workpiece.

[0038] Reference Figure 2 and Figure 3 Six positioning grooves 6 are provided on the disk body 1, and the six positioning grooves 6 are evenly arranged around the rotation axis of the disk body 1. The six positioning grooves 6, the six movable grooves 22 and the six movable grooves 22 are all arranged in a one-to-one correspondence with the six placement grooves 2. The positioning groove 6 is arranged on the side of the corresponding fine-tuning groove 21 away from the placement groove 2. Each positioning groove 6 is fixedly connected to a limiting block 7 by an installation bolt 61. In this embodiment, the number of the installation bolts 61 is two to improve the stability of the limiting block 7 during the processing process. A positioning column 62 is fixedly connected to the positioning groove 6. The positioning column 62 is perpendicular to the cross-section of the disk body 1, and a positioning hole 71 that slides with the positioning column 62 is provided on the limiting block 7.

[0039] When installing the limit block 7 , the user inserts the positioning column 62 into the positioning hole 71 . After pre-positioning, the user installs the limit block 7 in the positioning groove 6 by installing the bolt 61 , thereby ensuring accurate installation of the limit block 7 .

[0040] Reference Figure 2 and Figure 3 A guide slope 72 is provided on the end face of the limit block 7 close to the adjacent adjustment block 4. The inclination direction of the guide slope 72 is parallel to the length direction of the adjustment block 4. The outer surface of the adjustment block 4 is slidably matched with the guide slope 72. The setting of the guide slope 72 guides the adjustment block 4 to move in a predetermined direction, effectively avoiding the fine-tuning error caused by the deflection or jamming of the adjustment block 4.

[0041] Reference Figure 3 , Figure 4 and Figure 5The end face of the limit block 7 close to the tool holder 3 is the limit face 73, and the length direction of the limit face 73 is parallel to the radial direction of the blade 01. When the tool holder 3 is placed in the placement groove 2, a gap (not shown in the figure) is formed between the limit face 73 and the outer surface of the blade 01 away from the movable groove 22 for compensating the fine-tuning margin. When the blade 01 needs to be adjusted several times to abut against the limit face 73 due to wear, it indicates that the blade 01 has reached the maximum adjustment stroke, prompting the user to replace the worn blade 01 in time, avoiding the personal subjective error of judging the timing of blade 01 replacement based on experience, and effectively avoiding the excessive use of the blade 01 resulting in a sudden increase in cutting force or deterioration in machining accuracy, thereby further improving the machining accuracy of the workpiece.

[0042] Reference Figure 4 and Figure 5 A chip removal groove 8 is provided on the limit block 7. The chip removal groove 8 is parallel to the length direction of the limit block 7 and is arranged on the limit surface 73. The limit block 7 is integrally formed with a chip guide block 81 along the width direction. The cross-sectional width of the chip guide block 81 is the same as the gap width. The height of the bottom surface of the blade 01 is higher than the upper surface of the chip guide block 81. When the blade 01 is not adjusted, the relative surfaces of the blade 01 and the chip guide block 81 are in the same plane. The setting of the chip removal groove 8 effectively guides the chip discharge. At the same time, during the adjustment of the blade 01, the chip guide block 81 always blocks the gap between the blade 01 and the limit block 7, so that the bottom of the chip removal groove 8 is always in a closed state, effectively preventing chips from falling between the limit surface 73 and the blade 01, reducing the aggravated wear of the blade 01 caused by chip retention, and extending the service life of the blade 01.

[0043] Reference Figure 6 The disc body 1 is provided with limiting grooves 9 corresponding to the six blades 01 one by one, and the limiting grooves 9 are arranged between the corresponding limiting blocks 7 and the adjusting blocks 4. The limiting grooves 9 are located on the side of the blade 01 away from the inner hole 101, and each limiting groove 9 is threadedly connected to a limiting pin 91. A fastening groove 10 is provided on the inner side wall of each limiting groove 9. The fastening groove 10 is perpendicular to the length direction of the limiting groove 9, and the end of the fastening groove 10 extends to the outer surface of the disc body 1, and the fastening bolt 1001 is threadedly connected to the inner thread of the fastening groove 10.

[0044] After the fine-tuning of the blade 01 is completed, the user screws the limit pin 91 into the limit groove 9 and abuts the limit pin 91 against the outer surface of the blade 01, and forms a two-way limit constraint on the blade 01 through the limit pin 91 and the adjustment block 4, which effectively suppresses the radial movement of the blade 01 caused by the cutting force fluctuation, and ensures the stability of the position of the blade 01 after fine-tuning. After the limit pin 91 is installed, the user tightens the fastening bolt 1001 so that the end of the fastening bolt 1001 abuts against the limit pin 91, thereby improving the stability of the limit pin 91 in the disk body 1, avoiding the limit pin 91 from loosening due to vibration or impact during long-term use, and ensuring that the limit pin 91 on the blade 01 continues to be effective.

[0045] The implementation principle of a fine-adjustable whirlwind milling in the embodiment of the present application is as follows: when the blade 01 retracts due to wear, the user first loosens the connecting bolt 31 to ensure that the blade holder 3 can move smoothly in the fine-tuning slot 21, and then loosens the clamping bolt 42 to allow the adjustment block 4 to move smoothly along the length direction of the moving slot 22. Finally, the user rotates the adjusting bolt 5 according to the degree of wear. Since the adjusting bolt 5 is threadedly matched with the driving slot 221, the adjusting bolt 5 pushes the driving column 41 to move along the driving slot 221 toward the blade holder 3 during rotation, and the driving column 41 drives the adjustment block 4 to move along the moving slot 22 toward the placement slot 2. At this time, the adjustment block 4 pushes the blade 01 and the blade holder 3 from the placement slot 2 to the inside of the fine-tuning slot 21, and drives the blade tip of the blade 01 to move radially toward the central inner hole 101 during the movement of the blade holder 3. When blade 01 is fine-tuned to the point where the tips of the blades 01 are on the same ring as those of the other blades 01, the user tightens the connecting bolt 31 to ensure that blade 01 and tool holder 3 are fastened in the fine-tuning groove 21, and then tightens the clamping bolt 42 to fasten the adjustment block 4 to the disk body 1 to prevent the adjustment block 4 from retreating or shifting due to vibration during machining. The fine-tuning work is now completed. This arrangement achieves fine-tuning of the blade edge of the worn blade 01, thereby ensuring that the tips of multiple blades 01 are on the same ring, evenly sharing the cutting force, and improving the machining quality of the milling cutter on the workpiece.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fine-tunable whirlwind milling machine, characterized in that: include, A disk body (1), wherein an inner hole (101) is provided at the center of the disk body (1), and at least two placement grooves (2) are provided on the disk body (1); a fine-tuning groove (21) is provided at the end of the placement groove (2) close to the inner circumference of the disk body (1), and a moving groove (22) is provided at the other end; the end of the fine-tuning groove (21) extends toward the inner hole (101); a driving groove (221) is provided on the inner bottom wall of the moving groove (22), and the end of the driving groove (221) extends to the outer circumference of the disk body (1); A knife seat (3), the knife seat (3) is placed in the placement groove (2), the knife seat (3) is slidably matched with the fine-tuning groove (21), the knife seat (3) is connected to a blade (01) via a connecting bolt (31), and the cutting edge of the blade (01) extends toward the center of the inner hole (101); An adjusting block (4), wherein the adjusting block (4) is slidably connected inside the movable groove (22), and the surface of the adjusting block (4) facing the blade (01) abuts against the outer wall of the blade (01), and a driving column (41) is passed through the adjusting block (4), and the bottom end of the driving column (41) is slidably connected inside the driving groove (221), and an adjusting bolt (5) is connected to the inner thread of the driving groove (221), and the end of the adjusting bolt (5) abuts against the outer surface of the driving column (41).

2. The fine-adjustable whirlwind milling machine according to claim 1, characterized in that: The adjusting block (4) is provided with a clamping bolt (42), which passes through the disk body (1) and is threadedly engaged with the disk body (1), and the end of the clamping bolt (42) abuts against the outer surface of the adjusting block (4), and the adjusting block (4) is provided with a waist-shaped hole (43) that is slidably engaged with the clamping bolt (42).

3. The fine-adjustable whirlwind milling machine according to claim 1, characterized in that: The disc body (1) is provided with positioning grooves (6) corresponding to the plurality of knife seats (3) one by one. The positioning groove (6) is arranged on a side of the fine-tuning groove (21) away from the placement groove (2). The interior of the positioning groove (6) is fixedly connected to a limit block (7) by means of a mounting bolt (61). The end surface of the limit block (7) close to the adjustment block (4) is provided with a guide inclined surface (72). The inclination direction of the guide inclined surface (72) is parallel to the length direction of the adjustment block (4). The outer surface of the adjustment block (4) is slidably matched with the guide inclined surface (72).

4. The fine-adjustable whirlwind milling machine according to claim 3, characterized in that: The end surface of the limit block (7) close to the blade seat (3) is a limit surface (73), and the length direction of the limit surface (73) is parallel to the radial direction of the blade (01). When the blade seat (3) is arranged in the placement groove (2), a gap for compensating for fine-tuning margin is formed between the limit surface (73) and the outer surface of the blade (01) facing away from the movable groove (22).

5. The fine-adjustable whirlwind milling machine according to claim 3, characterized in that: A positioning column (62) is arranged inside the positioning groove (6), and a positioning hole (71) which is slidably matched with the positioning column (62) is opened on the limit block (7).

6. The fine-adjustable whirling milling machine according to claim 4, characterized in that: The limit block (7) is provided with a chip removal groove (8), the chip removal groove (8) is arranged on the limit surface (73), the limit block (7) is provided with a chip guide block (81) along the width direction, the cross-sectional width of the chip guide block (81) is the same as the gap width, the height of the bottom surface of the blade (01) is higher than the height of the upper surface of the chip guide block (81), and when the blade (01) is not adjusted, the relative outer surfaces of the blade (01) and the chip guide block (81) are in the same plane.

7. The fine-adjustable whirling milling machine according to claim 1, characterized in that: The disc body (1) is provided with limiting grooves (9) corresponding to the plurality of blade seats (3) one by one, and each limiting groove (9) is threadedly connected with a limiting pin (91) inside, and the limiting pin (91) abuts against the outer wall of the blade (01) away from the center hole.

8. The fine-adjustable whirling milling machine according to claim 7, characterized in that: A fastening groove (10) is provided on the inner side wall of each of the limiting grooves (9), the end of the fastening groove (10) extends to the outer surface of the disk body (1), the inner thread of the fastening groove (10) is connected to a fastening bolt (1001), and the end face of the fastening bolt (1001) abuts against the outer surface of the limiting pin (91).

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