Coarse precision adjustable milling cutter disc with fine adjustment unit

Abstract

The invention discloses a coarse precision adjustable facing cutter with a fine tuning unit, and relates to the technical field of facing cutters, the coarse precision adjustable facing cutter comprises a facing cutter assembly, the facing cutter assembly comprises a cutter body, a cutter body is fixed on the cutter body, a mounting sleeve is fixed on the top of the cutter body, and a ring frame is fixed between the mounting sleeve and the surface of the cutter body; a first screw groove and a second screw groove are formed in the disc body, a first screw and a second screw are movably connected into the cutter body, one end of the first screw is in threaded connection with the first screw groove, and one end of the second screw is in threaded connection with the second screw groove. Fine adjustment and coarse precision adjustment can be carried out through the adjusting mechanism under the cooperation of the milling cutter assembly, adjustment is convenient after installation, the influence on the workpiece machining precision is reduced, a cooling liquid channel on the milling cutter can be actively closed through the liquid discharging mechanism under the cooperation of the adjusting mechanism during adjustment, and the machining precision is improved. And residual cooling liquid in the milling cutter continuously flows out in the adjusting process, so that the efficiency and the positioning precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of milling cutter discs, in particular to a coarse precision adjustable milling cutter disc with a fine adjustment unit. Background Art

[0002] A milling cutter is a multi-tooth tool in a disc or disk shape. Several cutting edges (integral or replaceable blades) are distributed on the cutter body. During operation, it is driven by the machine tool spindle to rotate at high speed. The teeth sequentially remove the workpiece material. It is suitable for machining complex features such as planes, curved surfaces, grooves, and gears.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of milling cutter discs: Most milling cutter discs on the market have complex structures, are easy to wear, and are difficult to adjust after installation, which seriously affects the processing accuracy of the workpiece. In addition, the coolant channel on the milling cutter disc cannot be actively closed during adjustment, resulting in inconvenience during adjustment. Even if a few can be closed manually, the coolant remaining in the milling cutter disc will continue to flow out during the adjustment process, affecting the adjustment efficiency and positioning accuracy. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing coarse precision adjustable milling cutter disc with a fine adjustment unit, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to solve the problem that most milling cutter discs have complex structures, are easy to wear, are difficult to adjust after installation, and cannot actively close the coolant channel on the milling cutter disc during adjustment. Even if a few can be closed manually, the coolant remaining in the milling cutter disc continues to flow out during the adjustment process.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a coarse precision adjustable milling cutter disc with a fine adjustment unit, comprising: The milling cutter disc assembly includes a disc body, a cutter body is fixed on the disc body, a mounting sleeve is fixed on the top of the disc body, a ring frame is fixed between the mounting sleeve and the surface of the disc body, a screw groove 1 and a screw groove 2 are respectively opened on the disc body, and a screw 1 and a screw 2 are movably connected to the cutter body, one end of the screw 1 is threadedly connected to the screw groove 1, and one end of the screw 2 is threadedly connected to the screw groove 2; An adjustment mechanism is mounted on the milling cutter disc assembly, comprising a slot body provided in the disc body, a coarse adjustment assembly being mounted in the slot body and cooperating with the cutter body, a fine adjustment assembly being mounted on the mounting sleeve and the disc body and cooperating with the cutter body, a reinforcement being mounted in the slot body and cooperating with screw 1 and the coarse adjustment assembly; and, The liquid discharge mechanism is installed on the mounting sleeve and the ring frame, and includes a vertical tube sliding on the ring frame. A ring plate is fixed to the upper end surface of the vertical tube, a bag is fixed on the ring plate, and is connected to the upper end of the vertical tube. A spring is sleeved on the surface of the vertical tube, an opening and closing assembly is fixed in the vertical tube, a trigger rod is fixed in the disk body, and cooperates with the opening and closing assembly, and a limit plate is fixed to the lower end surface of the vertical tube.

[0007] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the cutter body includes a milling cutter body movable on the disc body, and the milling cutter body is respectively equipped with mounting hole one and mounting hole two, one end of the screw one passes through mounting hole one and is threadedly connected to screw groove one, one end of the screw two passes through mounting hole two and is threadedly connected to screw groove two, a docking groove is provided at the bottom of the milling cutter body, and an annular groove is provided on the inner wall of the docking groove.

[0008] As a preferred solution of the coarse-precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the coarse-adjusting component includes a square plate and a moving block sliding in the groove body, the moving block is located on one side of the square plate, a rotating plate is rotated in the disc body, a cylinder is fixed on the top of the square plate, a guide hole is provided on the rotating plate, and the cylinder slides therein, a spring 2 is fixed between one end of the square plate and one end of the moving block, a tooth groove is provided at the bottom of the moving block, and cooperates with a reinforcing piece, a docking piece is fixed on the top of the moving block, and cooperates with the docking groove, a fixing piece is installed on the top of the rotating plate, and cooperates with the disc body, a positioning groove is provided on the inner wall of the groove body, a positioning block is fixed on the bottom of the moving block, and it slides in the positioning groove.

[0009] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the docking part includes a docking column fixed to the top of the moving block, and it cooperates with the docking groove, a square groove is provided on the docking column, a square block slides in the square groove, a ball is rotated at one end of the block, and it cooperates with the annular groove, a spring piece is fixed between the surface of the block and the inner wall of the square groove, a limiting groove is provided on the inner wall of the square groove, a limiting block is fixed at the bottom of the block, and it slides in the limiting groove.

[0010] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the fixing part includes a screw that rotates on the top of the handle, an arc groove is opened at the bottom of the disc body, the upper end of the screw passes through the arc groove and extends to the outside of the disc body and is fixed with a handle, and the outer surface of the screw is threadedly connected to a pressure block, and it slides in the arc groove.

[0011] As a preferred solution of the coarse-precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the reinforcement comprises a driving plate and a U-shaped plate that slide in the groove body, the driving plate cooperates with screw one, a stop block is fixed on the top of the U-shaped plate, and it slides in the groove body, a rubber pad is fixed on the bottom of the stop block, and it cooperates with the tooth groove, a slot hole is provided on the surface of one end of the driving plate, a sliding column is fixed on the inner surface of the U-shaped plate, and it slides in the slot hole, a sliding groove is provided on the inner wall of the groove body, a slider is fixed on the bottom of the driving plate, and it slides in the sliding groove, and a spring three is fixed between the surface of the slider and the inner wall of the sliding groove.

[0012] As a preferred solution of the coarse-precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, the fine-adjustment component includes a ring plate 2 fixed to the upper end surface of the mounting sleeve, and the outer surface of the mounting sleeve is respectively provided with a movable ring and a spring 4, the upper end of the spring 4 is fixed to the bottom of the ring plate 2, and the lower end of the spring 4 is in contact with the top of the movable ring, a horizontal plate is fixed to the outer surface of the movable ring, an adjustment plate slides inside the horizontal plate, a cylinder is fixed to the bottom of the adjustment plate, a fixing groove is provided on the outer surface of the cylinder, and it cooperates with the cutter body, a fixing bolt is threadedly connected to the top of the horizontal plate, a blocking column is fixed to the bottom of the cylinder, a drainage hole is provided on the top of the disc body, and it cooperates with the cylinder and the blocking column.

[0013] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, wherein: a liquid inlet hole is opened in the mounting sleeve, a connecting hole, an annular hole and a liquid outlet hole are respectively opened in the disc body, a sleeve shell is rotatably provided on the upper end surface of the mounting sleeve, and it is connected with the liquid inlet hole, a liquid inlet pipe is connected on the sleeve shell, a cover body is fixed on the second outer surface of the ring plate, the ring frame is respectively connected with the liquid inlet hole and the connecting hole, the annular hole is respectively connected with the connecting hole and the liquid outlet hole, the trigger rod is fixed on the inner wall of the connecting hole, and the connecting hole is connected with the drainage hole.

[0014] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, wherein: the sac is connected to a one-way valve, the opening and closing assembly includes a ring block fixed to the inner wall of the lower end of the vertical pipe, a short block is fixed to the inner wall of the vertical pipe, a valve stem slides on the short block, a valve core is fixed at the lower end of the short block, the valve core cooperates with the ring block, a spring five is sleeved on the surface of the valve stem, and its two ends are respectively fixed between the surface of the short block and the surface of the valve core.

[0015] As a preferred solution of the coarse precision adjustable milling cutter disc with a fine-tuning unit described in the present invention, wherein: a slot is provided on the outer surface of the valve core, a movable groove is provided on the inner wall of the vertical tube, a clamping plate slides in the movable groove, and cooperates with the slot and the clamping plate respectively, an anti-slip groove is provided in the movable groove, an anti-slip block is fixed to the bottom of the clamping plate, and it slides in the anti-slip groove, and a second spring piece is fixed between the surface of the clamping plate and the inner wall of the movable groove.

[0016] The beneficial effects of the present invention are: through the adjustment mechanism in cooperation with the milling cutter disc assembly, fine adjustment and coarse precision adjustment can be performed, and it is convenient to adjust after installation, reducing the impact on the workpiece processing accuracy. Through the drainage mechanism in cooperation with the adjustment mechanism, the coolant channel on the milling cutter disc can be actively closed during adjustment, and the coolant remaining in the milling cutter disc will continuously flow out during the adjustment process, thereby improving efficiency and positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 The overall three-dimensional structure of the coarse precision adjustable milling cutter head with a fine adjustment unit Figure 1 .

[0019] Figure 2 The overall three-dimensional structure of the coarse precision adjustable milling cutter head with a fine adjustment unit Figure 2 .

[0020] Figure 3 It is a partial sectional three-dimensional structural diagram of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0021] Figure 4 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 3 Enlarged view of area A in the middle.

[0022] Figure 5 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 3 Enlarged view of area B.

[0023] Figure 6 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 5 Enlarged view of area C in the middle.

[0024] Figure 7 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 5 Enlarged view of area D in the middle.

[0025] Figure 8 A sectional plan view of the disc body and mounting sleeve of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0026] Figure 9 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 8 Enlarged view of area E in the middle.

[0027] Figure 10 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 9 Enlarged view of area F in the middle.

[0028] Figure 11 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 10 Enlarged view of the middle G area.

[0029] Figure 12 A partially cutaway perspective view of the vertical tube of a coarse-precision adjustable milling cutter head with a fine-tuning unit.

[0030] Figure 13 This is a partially cutaway stereoscopic view of the milling cutter body, screw 2, and disc body of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0031] Figure 14 A partially cutaway perspective view of the milling cutter body of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0032] Figure 15 A three-dimensional view of the handle and square plate of a coarse-precision adjustable milling cutter head with a fine-tuning unit.

[0033] Figure 16 For coarse precision adjustable milling cutter head with fine adjustment unit Figure 15 Enlarged view of the middle H area.

[0034] Figure 17 This is a structural diagram showing the separation of the cross plate and adjustment plate of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0035] Figure 18 A three-dimensional diagram of a screw of a coarse precision adjustable milling cutter disc with a fine adjustment unit.

[0036] Figure 19 A cylindrical stereogram of a coarse-precision adjustable milling cutter head with a fine-tuning unit.

[0037] In the figure: 1. Milling cutter disc assembly; 11. Disc body; 12. Cutter body; 13. Mounting sleeve; 14. Ring frame; 15. Screw groove 1; 16. Screw groove 2; 17. Screw 1; 18. Screw 2; 19. Liquid inlet hole; 110. Connecting hole; 111. Ring hole; 112. Liquid outlet hole; 113. Housing; 114. Liquid inlet pipe; 115. Cover body; 2. Adjustment mechanism; 21. Slot body; 22. Coarse adjustment assembly; 23. Fine adjustment assembly; 24. Reinforcement member; 3. Drain mechanism; 31. Vertical pipe; 32. Ring plate 1; 33. Capsule; 34. Spring 1 ; 35. Opening and closing assembly; 36. Trigger rod; 37. Limit plate; 38. One-way valve; 12-1. Milling cutter body; 12-2. Mounting hole 1; 12-3. Mounting hole 2; 12-4. Docking groove; 12-5. Ring groove; 22-1. Square plate; 22-2. Moving block; 22-3. Rotating plate; 22-4. Cylinder; 22-5. Guide hole; 22-6. Spring 2; 22-7. Tooth groove; 22-8. Docking piece; 22-9. Fixing piece; 22-10. Positioning groove; 22-11. Positioning block; 22-81. Docking column; 2 2-82, square groove; 22-83, square block; 22-84, ball bearing; 22-85, spring piece 1; 22-86, limit groove; 22-87, limit block; 22-91, screw; 22-92, handle; 22-93, pressure block; 24-1, drive plate; 24-2, U-shaped plate; 24-3, stop block; 24-4, rubber pad; 24-5, slot; 24-6, slide column; 24-7, slide groove; 24-8, slider; 24-9, spring 3; 23-1, ring plate 2; 23-2, moving ring; 23-3, spring Four; 23-4, horizontal plate; 23-5, adjustment plate; 23-6, cylinder; 23-7, fixing groove; 23-8, fixing bolt; 23-9, blocking column; 35-1, ring block; 35-2, short block; 35-3, valve stem; 35-4, valve core; 35-5, spring five; 35-6, slot; 35-7, moving slot; 35-8, clamping plate; 35-9, spring two; 35-10, anti-slip groove; 35-11, anti-slip block; 17-1, threaded part; 17-2, nut; 17-3, limit part; 17-4, anti-slip part. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0041] Example 1

[0042] Reference Figures 1 to 8 , which is the first embodiment of the present invention, provides a coarse precision adjustable milling cutter disc with a fine-tuning unit. The coarse precision adjustable milling cutter disc with a fine-tuning unit includes a milling cutter disc assembly 1, an adjustment mechanism 2 and a drainage mechanism 3. Through the adjustment mechanism 2, in cooperation with the milling cutter disc assembly 1, fine-tuning and coarse precision adjustment can be performed, and adjustment is convenient after installation. Through the drainage mechanism 3, in cooperation with the adjustment mechanism 2, the coolant channel on the milling cutter disc can be actively closed during adjustment, and the coolant remaining in the milling cutter disc is continuously discharged during the adjustment process.

[0043] Specifically, the milling cutter disc assembly 1 includes a disc body 11, a cutter body 12 is fixed on the disc body 11, a mounting sleeve 13 is fixed on the top of the disc body 11, a ring frame 14 is fixed between the mounting sleeve 13 and the surface of the disc body 11, and spline grooves are provided on the mounting sleeve 13 and the inner wall of the disc body 11 to facilitate the spline rod to pass through and connect with them, so that the milling cutter disc assembly 1 can be driven to rotate when the spline rod rotates. Screw groove 15 and screw groove 2 16 are respectively provided on the disc body 11, and screw 17 and screw 2 18 are respectively movably connected in the cutter body 12.

[0044] One end of screw 17 is threadedly connected to screw groove 15, and one end of screw 2 18 is threadedly connected to screw groove 2 16. Through screw 17 and screw 2 18, after the cutter body 12 is initially limited on the disk body 11, it is connected to the corresponding screw groove 15 and screw groove 2 16 respectively, and the cutter body 12 is stably fixed on the disk body 11. Multiple cutter bodies 12 are installed on the disk body 11 to form a milling cutter disk.

[0045] Specifically, the adjustment mechanism 2 is installed on the milling cutter disc assembly 1, including a groove body 21 opened in the disc body 11, a coarse adjustment component 22 is installed in the groove body 21, and cooperates with the cutter body 12, a fine adjustment component 23 is installed on the mounting sleeve 13 and the disc body 11, and cooperates with the cutter body 12, a reinforcement 24 is installed in the groove body 21, and cooperates with the screw 17 and the coarse adjustment component 22.

[0046] The coarse adjustment component 22 can be used to coarsely adjust the blade 12 installed on the disc body 11, and the fine adjustment component 23 can be used to finely adjust the coarsely adjusted blade 12. Then, screw one 17 and screw two 18 are tightened with screw groove one 15 and screw groove two 16 to act closely with the surface of the blade 12 to stably fix the blade 12 on the disc body 11. The blade 12 fixed after adjustment can be reinforced by the coarse adjustment component 22 through the reinforcement 24. At the same time, in the process of tightening the screw one 17 to fix the blade 12, the finely adjusted blade 12 is limited in advance to prevent it from moving during the tightening and fixing process.

[0047] Specifically, the discharge mechanism 3 is installed on the mounting sleeve 13 and the ring frame 14, and includes a vertical pipe 31 sliding on the ring frame 14. The vertical pipe 31 and the ring frame 14 are sealed to prevent fluid leakage from the gap therebetween. A ring plate 32 is fixed to the upper end surface of the vertical pipe 31, and a capsule 33 is fixed on the ring plate 32, and is connected to the upper end of the vertical pipe 31. Through the setting of the capsule 33, when the fine-tuning component 23 is operated, it applies pressure to the capsule 33 to overcome the elastic force of the spring 34, so that the capsule 33, the ring plate 32, the vertical pipe 31 and the opening and closing component 35 move. As the movement occurs, the trigger rod 36 acts on the opening and closing component 35 to open it, and closes the coolant channel so that it can no longer move.

[0048] Under the action of pressure, the gas in the capsule 33 is pressed into the coolant channel in the milling cutter disc, thereby discharging the liquid retained in the channel and reducing the impact on the operation during fine adjustment. The capsule 33 is elastic and can automatically restore the compressed state when it is not under pressure and connected to the atmosphere. This is existing technology. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0049] A spring 34 is sleeved on the surface of the vertical tube 31 , an opening and closing component 35 is fixed in the vertical tube 31 , a trigger rod 36 is fixed in the disk body 11 and cooperates with the opening and closing component 35 , and a limit plate 37 is fixed on the lower end surface of the vertical tube 31 .

[0050] The spring 1 34 provides a force for supporting the ring plate 1 32 and the bladder 33. When the fine-tuning component 23 is in use, the bladder 33 and the ring plate 1 32 compress the spring 1 34, so that the vertical pipe 31 and the opening and closing component 35 and the limit plate 37 thereon move. After the trigger rod 36 acts on the opening and closing component 35, the vertical pipe 31 can no longer move downward due to the action of the limit plate 37, and the opening and closing component 35 opens. As the fine-tuning component 23 applies pressure to the bladder 33, the gas in the bladder 33 is pressed into the channel of the coolant in the milling cutter disc, thereby discharging the liquid retained in the channel. The setting of the limit plate 37 limits the vertical pipe 31 and prevents it from detaching from the ring frame 14.

[0051] Example 2

[0052] Reference Figures 3 to 19 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0053] Specifically, the cutter body 12 includes a milling cutter body 12-1 that is movable on the disc body 11. The milling cutter body 12-1 is respectively installed with a mounting hole 12-2 and a mounting hole 2 12-3. Through the setting of the mounting hole 12-2 and the mounting hole 2 12-3, after the screw 17 is inserted into the screw groove 15 and the screw 2 18 is inserted into the screw groove 2 16, the position of the milling cutter body 12-1 can still be adjusted. It will not be impossible to adjust after insertion and can only be adjusted by pulling it out of the screw groove. The final fixation can be completed only after the screw 17 and the screw 2 18 are respectively tightened into the screw groove 15 and the screw groove 2 16 and closely interact with the surface of the milling cutter body 12-1.

[0054] One end of screw 17 passes through mounting hole 12-2 and is threadedly connected to screw groove 15, one end of screw 2 18 passes through mounting hole 2 12-3 and is threadedly connected to screw groove 2 16, a docking groove 12-4 is provided at the bottom of the milling cutter body 12-1, and an annular groove 12-5 is provided on the inner wall of the docking groove 12-4. Through the setting of the docking groove 12-4, it is convenient to insert the milling cutter body 12-1 into the docking piece 22-8 on the coarse adjustment component 22, so that it can be quickly and initially limited on the disk body 11, without the need for manual support of the milling cutter body 12-1 on the disk body 11, and the installation and adjustment operation is more convenient.

[0055] The coarse adjustment assembly 22 includes a square plate 22-1 and a moving block 22-2 that slide in the groove body 21. The moving block 22-2 is located on one side of the square plate 22-1. A rotating plate 22-3 rotates in the disk body 11. A cylinder 22-4 is fixed on the top of the square plate 22-1. A guide hole 22-5 is provided on the rotating plate 22-3, and the cylinder 22-4 slides therein. A spring 22-6 is fixed between one end of the square plate 22-1 and one end of the moving block 22-2. A tooth groove 22-7 is provided at the bottom of the moving block 22-2 and cooperates with the reinforcement 24. A docking piece 22-8 is fixed on the top of the moving block 22-2 and cooperates with the docking groove 12-4.

[0056] Through the setting of the docking piece 22-8, the docking groove 12-4 on the milling cutter body 12-1 can be put on it, so that the milling cutter body 12-1 can be quickly and preliminarily limited on the disk body 11. Multiple milling cutter bodies 12-1 can be limited on the disk body 11 together, and there is no need to install one milling cutter body 12-1 before limiting another milling cutter body 12-1 on the disk body 11 for installation.

[0057] A fixing part 22-9 is installed on the top of the rotating plate 22-3, and cooperates with the disk body 11. A positioning groove 22-10 is opened on the inner wall of the groove body 21. A positioning block 22-11 is fixed to the bottom of the moving block 22-2, and it slides in the positioning groove 22-10. A plurality of guide holes 22-5 are provided on the rotating plate 22-3. Through the setting of the rotating plate 22-3 and the guide holes 22-5 thereon, when the rotating plate 22-3 is rotated to rotate the plurality of guide holes 22-5 thereon, the cylinder 22-4 in the guide hole 22-5 can be moved, thereby driving multiple sets of square plates 22-1, spring 22-6, moving block 22-2 and docking piece 22-8 to move, thereby roughly adjusting the position of the milling cutter body 12-1 initially limited on the disk body 11.

[0058] By setting the tooth groove 22-7, when the reinforcement 24 acts on it, the limiting effect on the moving block 22-2 can be improved. The uneven shape of the tooth groove 22-7 increases the resistance after the reinforcement 24 contacts the moving block 22-2. The rotating plate 22-3 after rotation adjustment can be limited by the fixing part 22-9, and then the milling cutter body 12-1 after coarse adjustment can be limited. The moving block 22-2 is limited and guided by the positioning groove 22-10 and the positioning block 22-11, so that it can move within a certain range.

[0059] By setting the second spring 22-6, when the milling cutter body 12-1 is coarsely adjusted and fastened to the disk body 11, the square plate 22-1 can move and drive the moving block 22-2 and the docking piece 22-8 to move, thereby driving the milling cutter body 12-1 on the docking piece 22-8 to move for coarse adjustment. After the fixing piece 22-9 fixes the rotating plate 22-3, when the milling cutter body 12-1 is squeezed for fine adjustment to move, the elastic force of the second spring 22-6 is overcome, and the milling cutter body 12-1, the docking piece 22-8 and the moving block 22-2 can be moved, which plays the role of connecting the square plate 22-1 and the moving block 22-2, and provides space when the moving block 22-2 is squeezed and moved.

[0060] The docking member 22-8 includes a docking column 22-81 fixed to the top of the moving block 22-2, and which cooperates with the docking groove 12-4. A square groove 22-82 is provided on the docking column 22-81, and a square block 22-83 slides in the square groove 22-82. A ball 22-84 rotates at one end of the square block 22-83, and it cooperates with the annular groove 12-5. A spring piece 22-85 is fixed between the surface of the block 22-83 and the inner wall of the square groove 22-82. A limiting groove 22-86 is provided on the inner wall of the square groove 22-82. A limiting block 22-87 is fixed to the bottom of the block 22-83, and it slides in the limiting groove 22-86.

[0061] One end of the docking column 22-81 and the edge of the docking groove 12-4 are both provided with chamfers. Through such a setting, the milling cutter body 12-1 can be inserted into the docking column 22-81 more smoothly, and when the milling cutter body 12-1 is put on the docking column 22-81, it is convenient to squeeze the ball 22-84 so that it and the block 22-83 move into the square groove 22-82, thereby causing the spring piece 22-85 to deform.

[0062] After the docking post 22-81 is fully inserted into the docking groove 12-4, the block 22-83 and the ball 22-84 are reset under the action of the rebound of the spring piece 22-85, so that the corresponding part of the ball 22-84 is extended and placed in the annular groove 12-5, thereby limiting the milling cutter body 12-1 on the docking post 22-81 and will not fall off easily, no matter what tilt state the milling cutter disc is in, it will not fall off unless it is manually pulled out.

[0063] Through the structure of the spherical surface of the ball 22-84, when the milling cutter body 12-1 is pinched and pulled, the annular groove 12-5 squeezes the ball 22-84, overcoming the effect of the spring piece 22-85 exerting pressure on the ball 22-84 and the annular groove 12-5 with the help of the block 22-83. The ball 22-84 moves from the square groove 22-82 and gradually separates from the annular groove 12-5, and the docking limit is released. The block 22-83 is guided and limited by the limit block 22-87 and the limit groove 22-86, so that it moves within a certain range and will not move out of the square groove 22-82 and beyond the periphery of the docking column 22-81.

[0064] The fixing part 22-9 includes a screw 22-91 that rotates on the top of the handle 22-92. The lower end of the screw 22-91 is rotatably connected to the top of the rotating plate 22-3 through a bearing. An arc groove is provided at the bottom of the disk body 11. The upper end of the screw 22-91 passes through the arc groove and extends to the outside of the disk body 11 and is fixed with the handle 22-92. The outer surface of the screw 22-91 is threadedly connected to the pressure block 22-93, and it slides in the arc groove.

[0065] Part of the outer surface area of ​​the lower end of the pressure block 22-93 fits with the arc groove, which plays the role of limiting and guiding the pressure block 22-93, so that when the screw 22-91 rotates, the pressure block 22-93 will not rotate with it, and can only move along the axial direction of the screw 22-91. By rotating the handle 22-92, it is convenient to drive the screw 22-91 to rotate, so that the pressure block 22-93 moves without tightly interacting with the disk body 11, and then the handle 22-92, the screw 22-91 and the handle 22-92 are rotated to roughly adjust the cutter body 12 on the milling cutter disk. After the rough adjustment is completed, the handle 22-92 is rotated in the opposite direction to make the pressure block 22-93 tightly interact with the disk body 11, and the rough-adjusted cutter body 12 is preliminarily limited and fixed.

[0066] The reinforcement 24 includes a driving plate 24-1 and a U-shaped plate 24-2 that slide in the groove body 21. The driving plate 24-1 cooperates with the screw 17. A slope is provided at one end of the driving plate 24-1. Through such a setting, when the screw 17 is initially inserted into the screw groove 15 and is not tightened, the driving plate 24-1 can move into the groove body 21. A stop block 24-3 is fixed on the top of the U-shaped plate 24-2, and it slides in the groove body 21. A rubber pad 24-4 is fixed at the bottom of the stop block 24-3, and it cooperates with the tooth groove 22-7.

[0067] By setting the rubber pad 24-4, after it moves with the stop block 24-3 and contacts the tooth groove 22-7 on the moving block 22-2, due to its deformable characteristics, it will not hinder the continued movement of the stop block 24-3. The rubber pad 24-4 itself deforms and the side in contact with the tooth groove 22-7 fits more closely. With the cooperation of the rubber pad 24-4 and the tooth groove 22-7, the limiting effect on the moving block 22-2 is improved, so that the moving block 22-2 and the docking piece 22-8 will not move easily, and then in the process of tightening the screw 17, the milling cutter body 12-1 will not move easily on the disk body 11.

[0068] A slot 24-5 is provided on one end surface of the driving plate 24-1, and a sliding post 24-6 is fixed on the inner surface of the U-shaped plate 24-2, and slides in the slot 24-5. The slot 24-5 is divided into three parts. The first and third parts are for the sliding post 24-6. When the U-shaped plate 24-2 moves therein, it will not move. The second part is for the sliding post 24-6. When the U-shaped plate 24-2 moves therein, it can move. In the process of the driving plate 24-1 moving into the slot body 21, the sliding post 24-6 passes through the first part in the slot 24-5 and enters the third part, so that the sliding post 24-6, the U-shaped plate 24-2 and the block 24-3 move up and no longer move.

[0069] A sliding groove 24-7 is provided on the inner wall of the trough body 21, and a slider 24-8 is fixed to the bottom of the driving plate 24-1, and the slider slides in the sliding groove 24-7. A spring three 24-9 is fixed between the surface of the slider 24-8 and the inner wall of the sliding groove 24-7. Through the setting of the slider 24-8 and the sliding groove 24-7, the driving plate 24-1 is limited and guided so that it can move within a certain range. The slider 24-8 is compressed by the spring three 24-9 as it moves with the driving plate 24-1, and the generated elastic force provides the force for the reset of the driving plate 24-1 and the slider 24-8.

[0070] The fine adjustment component 23 includes a ring plate 23-1 fixed to the upper end surface of the mounting sleeve 13. The inner surface of the ring plate 23-1 is fixed to the outer surface of the mounting sleeve 13. The outer surface of the mounting sleeve 13 is respectively provided with a moving ring 23-2 and a spring 23-3. The moving ring 23-2 is slidably connected to the surface of the mounting sleeve 13. The upper end of the spring 23-3 is fixed to the bottom of the ring plate 23-1. The lower end of the spring 23-3 is in contact with the top of the moving ring 23-2. A horizontal plate 23-4 is fixed on the surface, an adjustment plate 23-5 slides inside the horizontal plate 23-4, a cylinder 23-6 is fixed to the bottom of the adjustment plate 23-5, a fixing groove 23-7 is provided on the outer surface of the cylinder 23-6, and it cooperates with the cutter body 12, a fixing bolt 23-8 is threadedly connected to the top of the horizontal plate 23-4, a blocking column 23-9 is fixed to the bottom of the cylinder 23-6, a drainage hole is provided on the top of the disk body 11, and it cooperates with the cylinder 23-6 and the blocking column 23-9.

[0071] After removing the cylinder 23-6 from the drain hole on the disc body 11 by setting the fixing bolt 23-8, place the two cylinders 23-6 on the outer ring of the disc body 11 and accurately adjust and fix the position so that the fixing groove 23-7 on the cylinder 23-6 corresponds to the position of the blade body 12 that needs to be finely adjusted. Adjust the adjustment plate 23-5 on the horizontal plate 23-4 and fix it, thereby limiting the position of the cylinder 23-6. Rotate the horizontal plate 23-4 and the adjustment plate 23-5. 3-5, cylinder 23-6 and ring plate 23-1. Due to the circular design of the outer surface of cylinder 23-6, it can squeeze the cutter body 12 to move after it comes into contact with it, thereby moving the docking column 22-81 and the moving block 22-2, and compressing the spring 22-6. After the cutter body 12 is aligned with the fixed groove 23-7, the cutter body 12 moves under the action of the rebound of the spring 22-6, and the corresponding part of the end is aligned with the fixed groove 23-7 to achieve fine adjustment.

[0072] Then rotate screw 17 and screw 2 18 to fix the fine-tuned cutter body 12, continue to rotate the cylinder 23-6 and the corresponding structure, and fine-tune and fix the other cutter bodies 12. A sealing ring is provided between the cylinder 23-6 and the drain hole, and is sleeved on the lower end surface of the cylinder 23-6. When the cylinder 23-6 and the blocking column 23-9 are removed from the drain hole, it is convenient for the drain mechanism 3 to better discharge the coolant in the milling cutter disc when the fine-tuning component 23 is operated.

[0073] By setting the spring four 23-3, when the cylinder 23-6 is inserted into the drain hole, it exerts pressure to prevent it from being unintentionally detached, and the pressure of the coolant in the disc body 11 will not push it open. After the cylinder 23-6 is removed, its elastic force acts on the drain mechanism 3 with the help of the movable ring 23-2, closing the coolant passage and quickly draining the remaining coolant in the milling cutter disc, reducing the influence of continuous outflow during adjustment.

[0074] Example 3

[0075] Reference Figures 8 to 19 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0076] Specifically, a liquid inlet hole 19 is opened in the mounting sleeve 13, and a connecting hole 110, a ring hole 111 and a liquid outlet hole 112 are respectively opened in the disc body 11. A sleeve shell 113 is rotatably provided on the upper end surface of the mounting sleeve 13, and is connected with the liquid inlet hole 19. The sleeve shell 113 is rotatably connected with the mounting sleeve 13 through a sealed bearing, the inner ring of the sealed bearing slides with the mounting sleeve 13, and the outer ring of the sealed bearing slides with the sleeve shell 113. A liquid inlet pipe 114 is connected to the sleeve shell 113, and a cover body 115 is fixed to the outer surface of the ring plate 2 23-1.

[0077] The ring frame 14 is respectively connected with the liquid inlet hole 19 and the communicating hole 110, and the annular hole 111 is respectively connected with the communicating hole 110 and the liquid outlet hole 112. The trigger rod 36 is fixed to the inner wall of the communicating hole 110. The communicating hole 110 is connected with the liquid drain hole. The multiple liquid outlet holes 112 are connected with the communicating hole 110 through the annular hole 111. After the coolant enters the sleeve 113 through the liquid inlet pipe 114, it enters the communicating hole 110 through the liquid inlet hole 19, and then is discharged from the multiple liquid outlet holes 112 through the annular hole 111, thereby cooling the milling cutter disc and lubricating the cutting.

[0078] A one-way valve 38 is connected to the sac 33. Through the setting of the one-way valve 38, the external gas can enter the sac 33, and the gas in the sac 33 will not be discharged from the one-way valve 38, which plays a role of one-way connection. Under the action of compression and rebound of the sac 33, the one-way valve 38 opens and sucks the external gas into the sac 33, which is convenient for blowing out the coolant in the milling cutter disc after the next installation and adjustment.

[0079] The opening and closing assembly 35 includes a ring block 35-1 fixed to the inner wall of the lower end of the vertical pipe 31, a short block 35-2 is fixed to the inner wall of the vertical pipe 31, a valve stem 35-3 slides on the short block 35-2, and a valve core 35-4 is fixed to the lower end of the short block 35-2. The valve stem 35-3 passes through the short block 35-2 and is slidably connected to it. The valve core 35-4 cooperates with the ring block 35-1. A sealing ring is provided between the ring block 35-1 and the valve core 35-4, and is fixed to the ring block 35-1. A spring 35-5 is sleeved on the surface of the valve stem 35-3, and its two ends are respectively fixed between the surface of the short block 35-2 and the surface of the valve core 35-4.

[0080] As the valve core 35-4 moves with the vertical pipe 31, the lower end of the vertical pipe 31 is inserted into the connecting hole 110, closing the coolant flow, and the contact between the trigger rod 36 and the valve core 35-4 is blocked. As the ring block 35-1 moves with the vertical pipe 31, the ring block 35-1 and the valve core 35-4 are separated to open, and the limit plate 37 moves and contacts the lower part of the inner wall of the ring frame 14 to limit the position, so that the vertical pipe 31 and the ring plate 32 will not move any further. 23-2 squeezes the sac 33, and presses the gas inside it into the communicating hole 110 through the vertical pipe 31, thereby discharging the coolant remaining in the milling cutter disc. Through the setting of spring five 35-5, it exerts a force when the ring block 35-1 and the valve core 35-4 are not separated, so that the valve core 35-4 is in close contact with the ring block 35-1. After the ring block 35-1 and the valve core 35-4 are separated, it provides a force for the valve core 35-4 to return to its original position.

[0081] A slot 35-6 is provided on the outer surface of the valve core 35-4, and a movable groove 35-7 is provided on the inner wall of the vertical pipe 31. A card plate 35-8 slides in the movable groove 35-7 and cooperates with the slot 35-6 and the card plate 35-8 respectively. By setting the slot 35-6 and the card plate 35-8, the valve core 35-4 is limited and fixed to prevent the coolant pressure inside the milling cutter disc from being too high, and the valve core 35-4 is pushed open and separated from the ring block 35-1. An anti-slip groove 35-10 is provided in the movable groove 35-7, and an anti-slip block 35-11 is fixed at the bottom of the card plate 35-8, and it slides in the anti-slip groove 35-10. A second spring piece 35-9 is fixed between the surface of the card plate 35-8 and the inner wall of the movable groove 35-7.

[0082] The second spring piece 35-9 applies force to the card plate 35-8, so that the end of the card plate 35-8 inserted into the slot 35-6 will not easily fall out. A slope is provided at one end of the card plate 35-8. When the vertical pipe 31 is inserted into the channel connected to the connecting hole 110 at the bottom of the ring frame 14, the trigger rod 36 first contacts the slope of the card plate 35-8. After being squeezed, it overcomes the effect of the second spring piece 35-9 on it, so that the card plate 35-8 moves the end inserted into the slot 35-6 to break away from the slot 35-6, releasing the limit fixation of the valve core 35-4, and then opens as the valve core 35-4 contacts the trigger rod 36. The card plate 35-8 is limited and guided by the anti-falling groove 35-10 and the anti-falling block 35-11 to prevent it from falling out of the vertical pipe 31.

[0083] The screw 17 includes a threaded portion 17-1, which cooperates with the screw groove 15. A nut 17-2 is fixed to one end of the threaded portion 17-1, and a limiting portion 17-3 is fixed to the other end. An anti-slip portion 17-4 is fixed to one end of the limiting portion 17-3, and the drive plate 24-1 cooperates with the limiting portion 17-3 and the anti-slip portion 17-4 respectively.

[0084] When the screw 17 is inserted into the screw groove 15 through the anti-slip portion 17-4, the driving plate 24-1 is smoothly squeezed to move, and the driving plate 24-1 is reset under the action of the corresponding spring, so that one end of the driving plate 24-1 is located at the limiting portion 17-3, so that although the screw 17 is not threadedly connected to the screw groove 15, it will not separate from the disk body 11 and the knife body 12. As the transition part between the pressed threaded portion 17-1 and the limiting portion 17-3 acts on the reinforcement 24, the moving block 22-2 and the docking column 22-81 are limited to prevent the knife body 12 from moving when the screw 17 is tightened, and then the screw 2 18 is tightened into the screw groove 2 16. The specifications and dimensions of the screw 17 and the screw 2 18 are the same.

[0085] During use and installation, the docking groove 12-4 on the milling cutter body 12-1 is put on the docking piece 22-8, and the milling cutter body 12-1 is limited to the docking column 22-81 through the ball 22-84 and the annular groove 12-5, so that the milling cutter body 12-1 is quickly and preliminarily limited on the disk body 11, and the fixing piece 22-9 is operated to release the limit of the rotating plate 22-3, and the fixing piece 22-9 drives the rotating plate 22-3 to rotate, so that the cutter body 12 installed on the coarse adjustment component 22 is coarsely adjusted, and then the cylinder 23-6 is removed from the drainage hole on the disk body 11, and the two cylinders 23-6 are placed on the outer ring of the disk body 11, and the position is accurately adjusted and fixed so that the fixing groove 23-7 on the cylinder 23-6 corresponds to the position of the cutter body 12 that needs fine adjustment.

[0086] During this process, the moving ring 23-2 applies pressure to the capsule 33 with the help of spring four 23-3, overcomes the elastic force of spring one 34, and moves the capsule 33, ring plate one 32, vertical pipe 31 and opening and closing component 35. As the movement occurs, the trigger rod 36 acts on the opening and closing component 35 to open it and close the coolant channel, rotating the horizontal plate 23-4, the adjustment plate 23-5, the cylinder 23-6 and the ring plate two 23-1. Due to the circular design of the outer surface of the cylinder 23-6, it can squeeze the blade 12 to move after it contacts it, thereby moving the docking column 22-81 and the moving block 22-2, and compressing the spring two 22-6.

[0087] After the blade 12 is aligned with the fixing slot 23-7, the blade 12 is moved under the action of the rebound of the spring 22-6, and the corresponding part of the end is aligned with the fixing slot 23-7 to achieve fine adjustment, and then the screw 17 and the screw 2 18 are rotated to fix the finely adjusted blade 12, and the cylinder 23-6 and the corresponding structure are continued to be rotated to fine-tune and fix the other blades 12. When further adjustment is required after subsequent use, the screw 17 and the screw 2 18 can be loosened, and the above adjustment operation can be repeated.

[0088] In summary, through the cooperation of the adjustment mechanism 2 and the milling cutter disc assembly 1, fine-tuning and coarse precision adjustment can be performed. Compared with the existing technology, it is convenient to adjust after installation, reducing the impact on the workpiece processing accuracy. Through the cooperation of the adjustment mechanism 2, the drain mechanism 3 can actively close the coolant channel on the milling cutter disc during adjustment. Compared with the existing technology, the coolant remaining in the milling cutter disc is continuously discharged during the adjustment process, thereby improving efficiency and positioning accuracy.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A coarse precision adjustable milling cutter head with a fine adjustment unit, characterized in that: include, A milling cutter disc assembly (1) comprises a disc body (11), a cutter body (12) is fixed on the disc body (11), a mounting sleeve (13) is fixed on the top of the disc body (11), a ring frame (14) is fixed between the mounting sleeve (13) and the surface of the disc body (11), a screw groove 1 (15) and a screw groove 2 (16) are respectively provided on the disc body (11), a screw 1 (17) and a screw 2 (18) are respectively movably connected in the cutter body (12), one end of the screw 1 (17) is threadedly connected to the screw groove 1 (15), and one end of the screw 2 (18) is threadedly connected to the screw groove 2 (16); An adjustment mechanism (2) is mounted on the milling cutter disc assembly (1), comprising a slot (21) provided in the disc body (11), a coarse adjustment assembly (22) being mounted in the slot (21) and cooperating with the cutter body (12), a fine adjustment assembly (23) being mounted on the mounting sleeve (13) and the disc body (11) and cooperating with the cutter body (12), a reinforcement member (24) being mounted in the slot (21) and cooperating with a screw (17) and the coarse adjustment assembly (22); and, The liquid discharge mechanism (3) is mounted on the mounting sleeve (13) and the ring frame (14), and includes a vertical tube (31) sliding on the ring frame (14); a ring plate (32) is fixed on the upper end surface of the vertical tube (31); a capsule (33) is fixed on the ring plate (32) and is communicated with the upper end of the vertical tube (31); a spring (34) is sleeved on the surface of the vertical tube (31); an opening and closing assembly (35) is fixed in the vertical tube (31); a trigger rod (36) is fixed in the disk (11) and cooperates with the opening and closing assembly (35); and a limit plate (37) is fixed on the lower end surface of the vertical tube (31).

2. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 1, characterized in that: The cutter body (12) includes a milling cutter body (12-1) movable on a disc body (11), and the milling cutter body (12-1) is respectively provided with a mounting hole 1 (12-2) and a mounting hole 2 (12-3), one end of the screw 1 (17) passes through the mounting hole 1 (12-2) and is threadedly connected to the screw groove 1 (15), and one end of the screw 2 (18) passes through the mounting hole 2 (12-3) and is threadedly connected to the screw groove 2 (16), and a docking groove (12-4) is provided at the bottom of the milling cutter body (12-1), and an annular groove (12-5) is provided on the inner wall of the docking groove (12-4).

3. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 2, characterized in that: The coarse adjustment component (22) includes a square plate (22-1) and a moving block (22-2) that slides in the groove body (21). The moving block (22-2) is located on one side of the square plate (22-1). A rotating plate (22-3) rotates in the disk body (11). A cylinder (22-4) is fixed on the top of the square plate (22-1). A guide hole (22-5) is opened on the rotating plate (22-3), and the cylinder (22-4) slides in the guide hole. A spring (22-6) is fixed between one end of the square plate (22-1) and one end of the moving block (22-2). ), the bottom of the moving block (22-2) is provided with a tooth groove (22-7) and cooperates with the reinforcing member (24), the top of the moving block (22-2) is fixed with a docking member (22-8) and cooperates with the docking groove (12-4), the top of the rotating plate (22-3) is installed with a fixing member (22-9) and cooperates with the disk body (11), the inner wall of the groove body (21) is provided with a positioning groove (22-10), the bottom of the moving block (22-2) is fixed with a positioning block (22-11), and it slides in the positioning groove (22-10).

4. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 3, characterized in that: The docking member (22-8) includes a docking column (22-81) fixed to the top of the moving block (22-2) and matched with the docking groove (12-4); a square groove (22-82) is provided on the docking column (22-81); a square block (22-83) slides in the square groove (22-82); a ball (22-84) rotates at one end of the square block (22-83) and matches with the annular groove (12-5); a spring piece (22-85) is fixed between the surface of the square block (22-83) and the inner wall of the square groove (22-82); a limiting groove (22-86) is provided on the inner wall of the square groove (22-82); a limiting block (22-87) is fixed at the bottom of the square block (22-83) and slides in the limiting groove (22-86).

5. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 3, characterized in that: The fixing member (22-9) includes a screw (22-91) that rotates on the top of the handle (22-92); an arc groove is provided at the bottom of the disk body (11); the upper end of the screw (22-91) passes through the arc groove and extends to the outside of the disk body (11) and is fixed with the handle (22-92); the outer surface of the screw (22-91) is threadedly connected to a pressure block (22-93), and the pressure block slides in the arc groove.

6. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 3, characterized in that: The reinforcing member (24) includes a driving plate (24-1) and a U-shaped plate (24-2) that slide in the groove body (21). The driving plate (24-1) cooperates with a screw (17). A stop block (24-3) is fixed on the top of the U-shaped plate (24-2) and slides in the groove body (21). A rubber pad (24-4) is fixed on the bottom of the stop block (24-3) and cooperates with the tooth groove (22-7). The driving plate (24-1) is fixed to the top of the U-shaped plate (24-2). A slot hole (24-5) is provided on the end surface, a slide column (24-6) is fixed on the inner surface of the U-shaped plate (24-2), and the slide column slides in the slot hole (24-5), a slide groove (24-7) is provided on the inner wall of the trough body (21), a slider (24-8) is fixed on the bottom of the driving plate (24-1), and the slider slides in the slide groove (24-7), and a spring (24-9) is fixed between the surface of the slider (24-8) and the inner wall of the slide groove (24-7).

7. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 1, characterized in that: The fine adjustment component (23) includes a ring plate 2 (23-1) fixed to the upper end surface of the mounting sleeve (13), and the outer surface of the mounting sleeve (13) is respectively provided with a moving ring (23-2) and a spring 4 (23-3), the upper end of the spring 4 (23-3) is fixed to the bottom of the ring plate 2 (23-1), and the lower end of the spring 4 (23-3) contacts the top of the moving ring (23-2), and the outer surface of the moving ring (23-2) is fixed with a horizontal plate (23-4), and the horizontal plate (23-4) slides inside. An adjustment plate (23-5) is provided, a cylinder (23-6) is fixed at the bottom of the adjustment plate (23-5), a fixing groove (23-7) is provided on the outer surface of the cylinder (23-6), and the cylinder (23-6) is matched with the cutter body (12), a fixing bolt (23-8) is threadedly connected to the top of the horizontal plate (23-4), a blocking column (23-9) is fixed at the bottom of the cylinder (23-6), and a drainage hole is provided at the top of the disk body (11), and the drainage hole is matched with the cylinder (23-6) and the blocking column (23-9).

8. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 7, characterized in that: A liquid inlet hole (19) is provided in the mounting sleeve (13), and a communicating hole (110), an annular hole (111) and a liquid outlet hole (112) are respectively provided in the disc body (11). A sleeve shell (113) is rotatably provided on the upper end surface of the mounting sleeve (13) and is communicated with the liquid inlet hole (19). A liquid inlet pipe (114) is communicated on the sleeve shell (113). A cover body (115) is fixed on the outer surface of the ring plate 2 (23-1). The ring frame (14) is respectively communicated with the liquid inlet hole (19) and the communicating hole (110). The annular hole (111) is respectively communicated with the communicating hole (110) and the liquid outlet hole (112). The trigger rod (36) is fixed to the inner wall of the communicating hole (110), and the communicating hole (110) is communicated with the liquid discharge hole.

9. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 8, characterized in that: The sac (33) is connected to a one-way valve (38), and the opening and closing assembly (35) includes a ring block (35-1) fixed to the inner wall of the lower end of the vertical tube (31), a short block (35-2) is fixed to the inner wall of the vertical tube (31), a valve stem (35-3) slides on the short block (35-2), and a valve core (35-4) is fixed at the lower end of the short block (35-2), and the valve core (35-4) is matched with the ring block (35-1). A spring five (35-5) is sleeved on the surface of the valve stem (35-3), and its two ends are respectively fixed between the surface of the short block (35-2) and the surface of the valve core (35-4).

10. The coarse precision adjustable milling cutter head with a fine adjustment unit according to claim 9, characterized in that: The outer surface of the valve core (35-4) is provided with a slot (35-6), the inner wall of the vertical pipe (31) is provided with a movable slot (35-7), a clamping plate (35-8) slides in the movable slot (35-7), and the clamping plate (35-8) respectively cooperates with the slot (35-6) and the clamping plate (35-8), an anti-slip groove (35-10) is provided in the movable slot (35-7), an anti-slip block (35-11) is fixed to the bottom of the clamping plate (35-8), and the anti-slip block (35-11) slides in the anti-slip groove (35-10), and a second spring piece (35-9) is fixed between the surface of the clamping plate (35-8) and the inner wall of the movable slot (35-7).

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