Unequal division staggered tooth phase control low vibration milling cutter head

Abstract

This invention relates to the field of milling tool technology, specifically a low-vibration milling cutter head with unequal tooth staggered phase control. The milling cutter head includes a cutter head body and a cutter shaft. The cutter head has 6-8 tooth mounting slots, unequally divided such that the tooth angle between adjacent tooth mounting slots increases linearly from the cutter head's entry side to its exit side, with a gradient difference of 0.8°-1.5°. The first tooth angle is 45°-62°, and the sum of all tooth angles is 360°. The tooth angle and the tooth helix angle form a one-to-one coupling; for each increase in the gradient difference of the tooth angle, the helix angle increases synchronously by 1.5°-2.5°. The cutter shaft and the milling cutter head are stably connected through structures such as sleeve grooves, tooth clamping, and hydraulic clamping. Built-in vibration damping, cooling, and monitoring structures are incorporated. This invention solves the problems of irregular arrangement and limited vibration damping effect of existing unequally divided milling cutter heads, improving machining stability and accuracy, facilitating mass production, and being suitable for various milling machining scenarios.

Description

Technical Field

[0001] This invention relates to the field of milling cutting tools, specifically a low-vibration milling cutter head with unequal tooth splitting phase control. Background Technology

[0002] In the field of milling, unequally spaced staggered-tooth end mills are commonly used high-performance cutting tools, mainly used for face milling, slot milling, and form milling, and are particularly suitable for cutting thin-walled aerospace parts, titanium alloys, and other weakly rigid workpieces and difficult-to-machine materials. The core feature of this type of end mill is that the tooth mounting slots are arranged in a non-uniform, equal-segmented manner, which differs from the design of traditional equally spaced end mills with uniform tooth angles. By adjusting the tooth angles of adjacent tooth mounting slots, the periodic superposition of cutting forces is broken, thereby suppressing chatter generated during milling and improving machining stability and workpiece surface quality.

[0003] The key to unequal-split staggered-tooth milling cutters lies in the reasonable arrangement of the tooth angles, combined with the adjustment of the helix angle of the cutter teeth and axial staggered tooth structures, to further optimize the vibration reduction effect. In addition, the vibration reduction effect of the milling cutter not only depends on the unequal-split arrangement of the cutter teeth, but also on the stability of its connection with the cutter shaft. As the connecting carrier between the milling cutter and the machine tool spindle, the rationality of its connection structure directly affects the transmission of milling vibration.

[0004] Currently, milling cutter heads and cutter shafts are mostly fixed by simple sleeves or bolts, lacking a dedicated low-vibration connection design. During high-speed milling, problems such as loose connections and center distance fluctuations are prone to occur, leading to increased vibration. This not only affects machining accuracy but may also shorten the service life of tools and machine tools, making it difficult to meet the requirements of high-precision, low-vibration milling. Summary of the Invention

[0005] To address the problems in the existing technology, this invention provides a low-vibration milling cutter head with unequal tooth phase control, which solves the problems of irregular arrangement and limited vibration reduction effect of existing unequal tooth milling cutter heads, improves machining stability and accuracy, facilitates mass production, and is suitable for various milling machining scenarios.

[0006] The technical solution adopted by the present invention to solve its technical problem is a low-vibration milling cutter disc with unequal tooth phase control, including a milling cutter disc and a cutter shaft for connecting the milling cutter disc and the machine tool spindle.

[0007] The milling cutter disc has Z tooth mounting slots, where Z is an integer of 6, 7 or 8. From the entry side to the exit side of the milling cutter disc rotating clockwise, the tooth angle between adjacent tooth mounting slots increases in a continuous linear gradient.

[0008] The gradient difference in the inter-tooth angle of the cutting tooth mounting groove The angle is 0.8° to 1.5°, and the tooth angle between the first adjacent cutting tooth mounting slot on the cutting side is... , The value range is 45° to 62°, and the subsequent values ​​are... indivual( The tooth angle between adjacent cutter tooth mounting slots (2 to Z) is The sum of all Z inter-tooth angles is 360°.

[0009] Each cutting tooth is equipped with a gradient-changing helix angle, and the helix angle and the tooth angle are coupled in a one-to-one correspondence. Each increase in the tooth angle... The helix angle of the corresponding cutting teeth increases synchronously by 1.5° to 2.5°, and the initial value of the helix angle (corresponding to the first tooth angle) is... The initial angle is 15° to 18°, and the final value (corresponding to the last tooth angle) is 25° to 30°.

[0010] When the cutting tooth mounting slot Z=6, and satisfy The only certainty and The matching combination makes the tooth angle arrangement a strictly closed and non-arbitrarily selected gradient sequence.

[0011] On the other hand, the end of the cutter shaft passes through the locking plate at the end of the milling cutter disc and is inserted into the sleeve groove provided for it inside the milling cutter disc. Several wear-resistant patches are installed circumferentially on the outer wall of the cutter shaft, and a collar is provided on the locking plate that elastically contacts the patches on the outer wall of the cutter shaft.

[0012] On the other hand, the cutter shaft is either an integral or segmented structure. When it is a segmented structure, the two segments of the cutter shaft are fixed together by a threaded connection, thereby extending the cutter shaft.

[0013] On the other hand, the outer wall of the cutter shaft is provided with a circumferential groove, a sliding ring is rotatably installed in the circumferential groove, and a retaining tooth is movably installed at the inner ring surface of the collar, which engages with the port of the circumferential groove.

[0014] On the other hand, the outer wall of the slip ring is provided with multiple tangential surfaces that are recessed into the inner side of the circumferential groove along its circumference. The locking teeth are "V" shaped structures, with one end fixed and the other end slidingly engaged with the collar. The middle folded end protrudes into the circumferential groove. When the slip ring rotates, it slides in contact with its folded end and squeezes and contracts against it.

[0015] On the other hand, the cutter shaft is provided with a circumferential hydraulic groove, and a number of through grooves perpendicular to its axis and connected to the hydraulic groove are provided in the circumferential direction of the cutter shaft. A sealing tube is slidably installed in the through groove. The end of the sealing tube facing the axis of the cutter shaft is a sealing structure, and a spherical groove is provided at the sealing end. A damping plate is movably installed in the spherical groove.

[0016] On the other hand, the damping plate has a ball head coupled to the spherical groove in the middle, and a permanent magnet that is magnetically attracted to the inner wall of the socket groove is provided at one end of the damping plate near the socket groove port. In its natural state, several damping plates are evenly distributed in the inner cavity of the socket groove in the shape of an inverted cone.

[0017] On the other hand, when the end of the cutter shaft enters the sleeve groove, it slides and fits against the concave curved surface on the side wall of the damping plate, and the side wall of the damping plate slides and fits against the groove formed by the adjacent patch.

[0018] On the other hand, the bottom of the socket groove is provided with an elastic damping boss, the end of the cutter shaft is provided with an inner groove that matches the boss, a monitoring rod that coincides with its axis is fixedly installed in the middle of the boss, the monitoring rod is inserted into the inner side of the cutter shaft, and a pressure sensor that is clearance-fitted with the monitoring rod is provided inside the cutter shaft.

[0019] On the other hand, the inner wall of the opening end of the sealing tube is elastically connected to the inner wall of the hydraulic tank by a spring, and the cutter shaft is equipped with a valve port for regulating the amount of oil inside the hydraulic tank.

[0020] On the other hand, the cutter shaft has several adjustment grooves connected to the hydraulic groove in the inner circumference. The outer wall of the cutter shaft is fitted with bolts by threaded connection. The ends of the bolts are inserted into the adjustment grooves, and piston plates that slide and seal with the inner wall of the adjustment grooves are fixedly installed on the ends of the bolts.

[0021] On the other hand, the cutter shaft has several cooling holes that communicate with the positions of the cutter tooth mounting slots.

[0022] The beneficial effects of this invention are:

[0023] The present invention relates to a low-vibration milling cutter head with unequal tooth phase control and an unequal tooth division method. By adopting a circumferential gradient linearly increasing tooth angle arrangement, combined with a one-to-one coupling between the tooth angle and the helix angle, three-dimensional phase coupling is achieved. This effectively breaks the periodic superposition of cutting forces and significantly suppresses milling chatter. Its strict parameter constraints ensure that the tooth angle arrangement is regular and the sum is accurate, reducing machining errors, improving the structural stability and assembly accuracy of the milling cutter head, and facilitating industrial mass production. In addition, the milling cutter head is combined with the clamping, vibration reduction and cooling structure of the cutter shaft to further improve machining stability, heat dissipation effect and safety of use, extend tool life and improve machining quality. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram showing the combined position of the cutter shaft and the milling cutter head;

[0027] Figure 3 For the present invention Figure 2 Enlarged diagram of point A in the diagram;

[0028] Figure 4 for Figure 1 A diagram showing the view from below in the image;

[0029] Figure 5 for Figure 4 Schematic diagram of the BB direction section in the middle;

[0030] Figure 6 for Figure 5 Enlarged diagram of point C in the diagram;

[0031] Figure 7 This is a partial sectional view of the milling cutter head;

[0032] Figure 8 for Figure 7 Enlarged diagram of point D in the diagram;

[0033] In the diagram: 1. Milling cutter head; 2. Cutter shaft; 3. Cutter tooth mounting groove; 4. Locking plate; 5. Sleeve groove; 21. Patch; 22. Circumferential slide groove; 23. Slip ring; 24. Hydraulic groove; 25. Sealing tube; 26. Vibration damping plate; 27. Pressure sensor; 28. Spring; 29. ​​Valve port; 210. Adjustment groove; 211. Bolt; 212. Cooling hole; 41. Collar; 42. Clamping tooth; 51. Boss; 52. Monitoring rod. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] This invention provides a low-vibration milling cutter head with unequal tooth phase control, which solves the problems of irregular arrangement and limited vibration reduction effect of existing unequal tooth milling cutter heads, improves machining stability and accuracy, facilitates mass production, and is suitable for various milling machining scenarios;

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, a low-vibration milling cutter disc with unequal tooth splitting phase control includes a milling cutter disc 1 and a cutter shaft 2 for connecting the milling cutter disc 1 to the machine tool spindle.

[0037] The milling cutter disc 1 has Z tooth mounting slots 3, where Z is an integer of 6, 7 or 8. The tooth angle between adjacent tooth mounting slots 3 increases continuously and linearly from the infeed side to the exit side as the milling cutter disc 1 rotates clockwise.

[0038] By explicitly limiting Z to an integer of 6, 7, or 8, and strictly constraining the sum of all tooth angles to 360°, the problems of irregular arrangement and deviation of the sum of tooth angles from 360° caused by improper selection of tooth angle gradient are eliminated. This ensures that the arrangement of the milling cutter tooth mounting slots meets the geometric requirements of machining, reduces machining errors, improves the stability and assembly accuracy of the overall structure of the milling cutter, and facilitates industrial mass production.

[0039] The gradient difference in the inter-tooth angle of the cutting tooth mounting groove 3 The angle is 0.8° to 1.5°, and the tooth angle between the first adjacent cutting tooth mounting slot 3 on the cutting side is... , The value range is 45° to 62°, and the subsequent values ​​are... indivual( The tooth angle between adjacent tooth mounting slots 3 (2 to Z) is The sum of all Z inter-tooth angles is 360°;

[0040] Each cutting tooth is equipped with a gradient-changing helix angle, and the helix angle and the tooth angle are coupled in a one-to-one correspondence. Each increase in the tooth angle... The helix angle of the corresponding cutting teeth increases synchronously by 1.5° to 2.5°, and the initial value of the helix angle corresponds to the first tooth angle. The angle is 15° to 18°, and the final value corresponds to the last tooth angle of 25° to 30°.

[0041] When the number (Z) of the cutting tooth mounting slots 3 is 6, and satisfy The only certainty and The matching combination makes the tooth angle arrangement a strictly closed and non-arbitrarily selected gradient sequence.

[0042] In this embodiment, the milling cutter disc employs six tooth mounting slots. Along the clockwise rotation of the milling cutter disc from the entry side to the exit side, the tooth angle between adjacent tooth mounting slots increases in a continuous linear gradient, strictly satisfying the mathematical constraint: 6 Based on the parameter range limitations, the specific parameters are selected as follows:

[0043] Selection of tooth angle parameters: gradient difference Substituting the above mathematical constraints, the first tooth angle is calculated. ; Subsequent indivual( The tooth angles are as follows:

[0044] hour, ;

[0045] hour, ;

[0046] hour, ;

[0047] hour, ;

[0048] hour, ;

[0049] The sum of the 6 tooth angles is It meets the geometric arrangement requirements.

[0050] Furthermore, such as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the end of the cutter shaft 2 passes through the locking plate 4 at the end of the milling cutter disc 1 and is inserted into the sleeve groove 5 provided for it in the milling cutter disc 1. Several wear-resistant patches 21 are installed circumferentially on the outer wall of the cutter shaft 2, and a collar 41 is provided on the locking plate 4 to elastically contact the patches 21 on the outer wall of the cutter shaft 2.

[0051] During use, the cutter shaft 2 is first fixed on the machine tool spindle. Then, the socket 5 on the milling cutter disc 1 is aligned with the cutter shaft 2 and pushed in forcefully to achieve quick engagement. The patch 21 is used to improve the wear resistance protection of the outer wall of the cutter shaft 2, and avoid the center distance fluctuation caused by the wear of the outer wall due to vibration or frequent disassembly during the processing cycle. The collar 41 is used to achieve the initial clamping, anti-slip and vibration reduction between the cutter shaft 2 and the milling cutter disc 1.

[0052] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, the cutter shaft 2 is an integral structure or a segmented structure. When it is a segmented structure, the two segments of the cutter shaft 2 are fixed by a threaded connection, thereby extending the length of the cutter shaft 2 to adapt to changes in the shape and position of the workpiece being processed.

[0053] Furthermore, such as Figures 2 to 4 ,as well as Figure 6 As shown, the outer wall of the cutter shaft 2 is provided with a circumferential groove 22, and a slip ring 23 is rotatably installed in the circumferential groove 22. A retaining tooth 42 is movably installed on the inner ring surface of the collar 41. The retaining tooth 42 engages with the port of the circumferential groove 22. The outer wall of the slip ring 23 is provided with multiple circumferentially recessed surfaces that are recessed into the inner side of the circumferential groove 22. The retaining tooth 42 has a "V" shaped structure, with one end fixed and the other end slidably engaged with the collar 41. The middle bend end protrudes into the circumferential groove 22. When the slip ring 23 rotates, it slides in contact with the bend end and squeezes and contracts it.

[0054] During the rapid engagement of the cutter shaft 2 and the milling cutter disc 1, the retaining tooth 42 slides along the outer wall of the cutter shaft 2 until it falls into the circumferential groove 22. Due to the structural toughness of the retaining tooth 42, its position is fixed after engaging with the circumferential groove 22, and its angled end is located at the concave cut surface of the slip ring 23. In this state, the engagement position of the cutter shaft 2 and the milling cutter disc 1 is locked. When it is necessary to disassemble the milling cutter disc 1, the slip ring 23 is rotated so that its concave cut surface slowly rotates out and is misaligned with the angled end of the retaining tooth 42. At this time, under the pushing action of the outer arc surface of the slip ring 23, the retaining tooth 42 deforms and contracts and releases the engagement with the circumferential groove 22, and the milling cutter disc 1 can be removed.

[0055] Furthermore, such as Figure 5 , Figure 7 and Figure 8 As shown, the cutter shaft 2 has a circumferential hydraulic groove 24 inside. The cutter shaft 2 is equipped with a valve port 29 for regulating the oil volume inside the hydraulic groove 24. Several through grooves perpendicular to its axis and connected to the hydraulic groove 24 are circumferentially formed inside the cutter shaft 2. A sealing tube 25 is slidably installed in the through groove. The inner wall of the open end of the sealing tube 25 is elastically connected to the inner wall of the hydraulic groove 24 by a spring 28. The end of the sealing tube 25 facing the axis of the cutter shaft 2 is a sealed structure, and a spherical groove is formed at the sealed end. The spherical groove contains a movable... A damping plate 26 is installed. A ball head coupled to a spherical groove is provided in the middle of the damping plate 26. One end of the damping plate 26 near the port of the socket groove 5 is provided with a permanent magnet that is magnetically attracted to the inner wall of the socket groove 5. In the natural state, several damping plates 26 are evenly distributed in the inner cavity of the socket groove 5 in the shape of an inverted cone. When the end of the cutter shaft 2 enters the socket groove 5, it slides and contacts the concave curved surface on the side wall of the damping plate 26. The groove formed between the side wall of the damping plate 26 and the adjacent patch 21 slides and contacts.

[0056] Before installing the cutter shaft 2, a suitable amount of hydraulic oil is first injected into the hydraulic groove 24 through the valve port 29. During the process of slowly pressing the cutter shaft 2 into the sleeve groove 5, its end slides into contact with the concave curved surface on the side wall of the damping plate 26, thereby pushing the damping plate 26 in the inclined state to deflect until its concave curved surface is completely in contact with the outer wall of the cutter shaft 2. At this time, the cutter shaft 2 is centered under the joint pressing action of the circumferentially arranged damping plates 26. At this time, the damping plates 26, under the squeezing action of the outer wall of the cutter shaft 2, push the sealing tube 25 to move towards the hydraulic groove 24, thereby reducing the internal space of the hydraulic groove 24 and increasing the oil pressure. The oil pressure is used to achieve the clamping of the cutter shaft 2. At the same time, the hydraulic oil also helps to improve the heat dissipation and vibration reduction effect of the milling cutter disc 1 during subsequent work. The misaligned engagement formed between the damping plate 26 and the patch 21 can be used to improve the rotational synchronization between the milling cutter disc 1 and the cutter shaft 2.

[0057] Furthermore, such as Figure 7 and Figure 8As shown, the inner circumference of the cutter shaft 2 is provided with several adjusting grooves 210 that communicate with the hydraulic groove 24. The outer wall of the cutter shaft 2 is fitted with bolts 211 by means of threaded connection. The ends of the bolts 211 are inserted into the adjusting grooves 210, and the ends of the bolts 211 are fixedly fitted with piston plates that slide and seal with the inner wall of the adjusting grooves 210.

[0058] After the damping plate 26 clamps the tool shaft 2, the volume of the inner cavity of the adjusting groove 210 can be finely adjusted by turning the bolt 211, thereby achieving a secondary fine adjustment of the oil pressure in the hydraulic groove 24 and the clamping force of the damping plate 26, further improving the clamping stability.

[0059] Furthermore, such as Figure 2 ,as well as Figures 5 to 7 As shown, the bottom of the socket groove 5 is provided with an elastic damping boss 51, and the end of the cutter shaft 2 is provided with an inner groove that matches the boss 51. A monitoring rod 52 that coincides with its axis is fixedly installed in the middle of the boss 51. The monitoring rod 52 is inserted into the inner side of the cutter shaft 2, and a pressure sensor 27 that is clearance-fitted with the free end head of the monitoring rod 52 is provided inside the cutter shaft 2.

[0060] After the cutter shaft 2 and the milling cutter head 1 are locked, the monitoring rod 52 and the pressure sensor 27 are in clearance fit. Under stable working conditions, the two do not contact each other. When the milling cutter head 1 encounters excessive resistance or interference and collision, the vibration of the milling cutter head 1 increases sharply in a short period of time, which drives the monitoring rod 52 to vibrate, causing its free end head to deflect and come into contact with the pressure sensor 27, resulting in a change in electrical signal. When the signal change exceeds the threshold, an alarm is issued and the machine is automatically stopped to protect the milling cutter head 1 and the machine tool spindle.

[0061] Furthermore, such as Figure 1 , Figure 5 and Figure 7 As shown, the cutter shaft 2 has several cooling holes 212 that are connected to the cutter tooth mounting groove 3, which are used to introduce cooling gas / liquid to achieve heat dissipation of the milling cutter disc 1.

[0062] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-vibration milling cutter disc with unequal tooth splitting phase control, characterized in that, Includes a milling cutter head (1) and a cutter shaft (2) for connecting the milling cutter head (1) to the machine tool spindle, wherein, The milling cutter disc (1) has Z tooth mounting slots (3), where Z is an integer of 6, 7 or 8. The tooth angle between adjacent tooth mounting slots (3) increases continuously in a linear gradient from the infeed side to the exit side as the milling cutter disc (1) rotates clockwise. The tooth angle gradient difference of the tooth mounting groove (3) The angle is 0.8° to 1.5°, and the tooth angle of the first adjacent cutting tooth mounting groove (3) on the cutting side is... , The value range is 45° to 62°, and the subsequent values ​​are... indivual( The tooth angle between adjacent tooth mounting slots (3) is 2~Z). The sum of all Z inter-tooth angles is 360°; Each cutting tooth is equipped with a gradient-changing helix angle, and the helix angle and the tooth angle are coupled in a one-to-one correspondence. Each increase in the tooth angle... The helix angle of the corresponding cutting teeth increases synchronously by 1.5° to 2.5°, and the initial value of the helix angle (corresponding to the first tooth angle) is... The initial angle is 15° to 18°, and the final value (corresponding to the last tooth angle) is 25° to 30°.

2. The low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 1, characterized in that: The end of the cutter shaft (2) passes through the locking plate (4) at the end of the milling cutter disc (1) and is inserted into the sleeve groove (5) provided for it in the milling cutter disc (1). Several wear-resistant patches (21) are installed circumferentially on the outer wall of the cutter shaft (2). A collar (41) is provided on the locking plate (4) that elastically contacts the patches (21) on the outer wall of the cutter shaft (2).

3. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 2, characterized in that: The outer wall of the cutter shaft (2) is provided with a circumferential groove (22), and a sliding ring (23) is rotatably installed in the circumferential groove (22). A retaining tooth (42) is movably installed on the inner ring surface of the collar (41), and the retaining tooth (42) engages with the port of the circumferential groove (22).

4. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 3, characterized in that: The outer wall of the slip ring (23) is provided with multiple circumferentially recessed cross-sections that are recessed into the inner side of the circumferential groove (22). The locking teeth (42) are "V" shaped structures, with one end fixed and the other end slidingly engaged with the collar (41). The middle folded end protrudes into the circumferential groove (22). When the slip ring (23) rotates, it slides and contacts the folded end and squeezes and contracts it.

5. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 2, characterized in that: The cutter shaft (2) has a circumferential hydraulic groove (24) inside. The cutter shaft (2) has several through grooves that are perpendicular to its axis and connected to the hydraulic groove (24) in the circumferential direction. A sealing tube (25) is slidably installed in the through groove. The end of the sealing tube (25) facing the axis of the cutter shaft (2) is a sealing structure, and a spherical groove is opened at the sealing end. A damping plate (26) is movably installed in the spherical groove.

6. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 5, characterized in that: The damping plate (26) has a ball head coupled to the spherical groove in the middle. The end of the damping plate (26) near the port of the sleeve groove (5) is provided with a permanent magnet that is magnetically attracted to the inner wall of the sleeve groove (5). In the natural state, several damping plates (26) are evenly distributed in the inner cavity of the sleeve groove (5) in the shape of an inverted cone.

7. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 6, characterized in that: When the end of the cutter shaft (2) enters the sleeve groove (5), it slides and fits against the concave curved surface on the side wall of the damping plate (26), and the groove formed between the side wall of the damping plate (26) and the adjacent patch (21) slides and fits against each other.

8. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 2, characterized in that: The bottom of the socket groove (5) is provided with an elastic damping boss (51), and the end of the cutter shaft (2) is provided with an inner groove that matches the boss (51). A monitoring rod (52) that coincides with its axis is fixedly installed in the middle of the boss (51). The monitoring rod (52) is inserted into the inner side of the cutter shaft (2), and a pressure sensor (27) that is clearance-fitted with the monitoring rod (52) is provided inside the cutter shaft (2).

9. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 5, characterized in that: The inner wall of the opening end of the sealing tube (25) is elastically connected to the inner wall of the hydraulic groove (24) by a spring (28), and the cutter shaft (2) is equipped with a valve port (29) for regulating the amount of oil inside the hydraulic groove (24).

10. A low-vibration milling cutter disc with unequal tooth splitting phase control according to claim 9, characterized in that: The cutter shaft (2) has several adjustment grooves (210) connected to the hydraulic groove (24) in the inner circumferential direction. The cutter shaft (2) has bolts (211) installed on its outer wall by means of threaded connection. The ends of the bolts (211) are inserted into the adjustment grooves (210), and the ends of the bolts (211) are fixedly installed with piston plates that slide and seal with the inner wall of the adjustment grooves (210).

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