Numerical control cutter handle device capable of pressurizing

Abstract

The utility model provides a numerical control cutter handle device capable of pressurizing, and relates to the technical field of numerical control machining. The face milling cutter comprises a face milling cutter main handle, a cylindrical pin, a valve plate, a first hexagon socket head cap screw, a first O-shaped sealing ring, a plunger, a stamping outer ring needle bearing, a key, a second hexagon socket head cap screw, a round nut, an orientation disc, a belleville spring, a kinetic energy disc, a split elastic pin, a cylinder body, a second cylindrical helical compression spring, an orientation seat, a second O-shaped sealing ring, an orientation rod, a blind rivet and a stainless steel ball. The face milling cutter main handle is installed on the main shaft and transmits kinetic energy to the kinetic energy disc at a preset rotating speed, the kinetic energy disc drives the 11 plungers in the cylinder body to alternately reciprocate up and down in sequence through the curved surface, and then water absorption and drainage are achieved. According to the numerical control cutter handle, the supercharging device is designed in the numerical control cutter handle, so that secondary supercharging of cutting fluid is realized, the pressure of the cutting fluid when the cutting fluid washes the cutter is improved, and the cooling effect and the capacity of cleaning accumulated cuttings are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a numerical control tool holder device capable of boosting pressure and a using method thereof. Background Technique

[0002] There is no pressure boosting device inside the existing tool holders. The coolant enters the tool holder directly from the internal coolant of the CNC machine tool spindle or the external-rotating internal tool holder and then directly flushes out from the tool, without secondary boosting. Therefore, the pressure at the tool outlet is only the internal coolant pressure or the external coolant pressure of the machine tool spindle, and high-pressure cooling of the tool cannot be achieved.

[0003] Furthermore, due to the absence of a pressure boosting device inside the existing tool holders, the internal coolant pressure or the external coolant pressure of the machine tool is usually about 2 MPa. After flushing directly to the tool through the existing tool holder channel, there is no good cooling effect and the accumulated chips cannot be effectively cleaned, resulting in accelerated tool wear, low service life, and the inability to remove cutting residual burrs. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a numerical control tool holder device capable of boosting pressure, which solves the problems of poor cooling effect and inability to effectively clean the accumulated chips due to the absence of a pressure boosting device inside the existing tool holders.

[0006] (2) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A numerical control tool holder device capable of boosting pressure includes a face milling cutter main handle, a cylindrical pin, a flow distribution plate, a first hexagon socket head cap screw, a first O-ring, a plunger, a stamping outer ring needle bearing, a key, a second hexagon socket head cap screw, a round nut, an orientation plate, a disc spring, a kinetic energy disc, an open split pin, a cylinder block, a second cylindrical helical compression spring, an orientation seat, a second O-ring, and an orientation rod. A pull stud is arranged at the top of the face milling cutter main handle;

[0008] A stainless steel ball for pressure relief is arranged inside the face milling cutter main handle;

[0009] The face milling cutter main handle is installed on the spindle and transmits kinetic energy to the kinetic energy disc at a preset rotational speed. A periodic sine curve surface is made on the circumference of the kinetic energy disc, and this surface drives 11 plungers in the cylinder block to reciprocate up and down alternately in sequence, thereby continuously realizing water absorption and drainage as the spindle rotates.

[0010] Preferably, during the water absorption process: two arc waist grooves are made on the end face of the distribution disk. Under the pressure of the coolant supply pump, the cutting fluid flows into the first arc-shaped groove of the distribution disk from the central hole of the pull stud. The plunger absorbs water in sequence under the downward movement.

[0011] Preferably, a pressure regulating screw is further arranged inside the main shank of the face milling cutter. A first cylindrical helical compression spring is arranged at the bottom of the pressure regulating screw, and a stainless steel ball is arranged at the bottom of the first cylindrical helical compression spring.

[0012] Preferably, the hole and shaft between the main shank of the face milling cutter and the distribution disk are in interference fit, and the angle is positioned at the joint surface through a positioning pin.

[0013] Preferably, a needle roller bearing is assembled between the cylinder block and the main shank of the face milling cutter with clearance fit, and a flat thrust needle roller bearing is assembled on the inner end face of the cylinder block.

[0014] Preferably, the installation hole of the plunger and the cylinder block is in clearance fit, and a positioning pin is assembled on the circumference of the cylinder block to control the angle of the plunger.

[0015] Preferably, cemented carbide rollers are installed in the grooves of the plunger, and the spiral surface of the kinetic energy disk contacts the cylindrical surfaces of the two cemented carbide rollers.

[0016] Preferably, the orientation disk and the main shank of the face milling cutter are locked on the side by screws so as to adjust the angle between the orientation disk and the orientation seat.

[0017] (III) Beneficial effects

[0018] The utility model provides a numerical control tool shank device capable of boosting pressure, which has the following beneficial effects:

[0019] 1. By designing a boosting device inside the numerical control tool shank, the utility model realizes the secondary boosting of the cutting fluid, thereby increasing the pressure when the cutting fluid flushes the tool, effectively improving the cooling effect and the ability to clean up the accumulated chips. This can not only extend the service life of the tool, but also reduce the cutting residual burrs and improve the processing quality.

[0020] 2. The utility model adopts the combined design of a plunger and a distribution disk. By driving the plunger to move up and down through the rotation of the main shaft, the circulation and boosting of the cutting fluid are realized. This design has a simple structure, convenient operation, and can continuously and stably provide high-pressure cutting fluid.

[0021] 3. The utility model also provides components such as a pressure regulating screw and a stainless steel ball, which can adjust the pressure of the cutting fluid according to needs to adapt to different processing requirements. This design is flexible and has strong practicability.

[0022] In summary, the present utility model provides a numerically controlled tool holder device capable of boosting pressure and its usage method, which has the advantages of simple structure, convenient operation, good boosting effect, etc. The utility model has broad application prospects in the field of numerical control machining, can meet different machining requirements, and improve machining efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic cross-sectional view of the whole of the present utility model;

[0024] Figure 2 is a front view schematic of the present utility model;

[0025] Figure 3 is a three-dimensional schematic of the present utility model;

[0026] Figure 4 is a schematic diagram of the external water supply device interface of the present utility model.

[0027] Wherein, 1. Pull stud; 2. Face milling cutter main handle; 3. Pressure regulating screw; 4. First cylindrical helical compression spring; 5. Stainless steel ball; 6. Cylindrical pin; 7. Flow distribution plate; 8. First hexagon socket head cap screw; 9. First O-ring; 10. Positioning pin; 11. Plunger; 12. Cemented carbide roller; 13. Press-formed outer ring needle bearing; 14. Key; 15. Second hexagon socket head cap screw; 16. Round nut; 17. Orientation plate; 18. Belleville spring; 19. Flat thrust needle bearing; 20. Kinetic energy disc; 21. Orientation pin; 22. Split cotter pin; 23. Cylinder block; 24. Second cylindrical helical compression spring; 25. Orientation seat; 26. Second O-ring; 27. Orientation rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment:

[0030] Such as Figures 1-4As shown in the figure, the embodiment of the present utility model provides a numerically controlled tool holder device capable of boosting pressure, including a face milling cutter main handle 2, a cylindrical pin 6, a flow distribution disk 7, a first hexagon socket head cap screw 8, a first O-ring 9, a plunger 11, a punching outer ring needle bearing 13, a key 14, a second hexagon socket head cap screw 15, a round nut 16, an orientation disk 17, a disc spring 18, a kinetic energy disk 20, an opening elastic pin 22, a cylinder block 23, a second cylindrical helical compression spring 24, an orientation seat 25, a second O-ring 26, and an orientation rod 27. A pull stud 1 is arranged at the top end of the face milling cutter main handle 2, and the assembly relationships of the remaining components are as follows:

[0031] The hole and shaft between the face milling cutter main handle 2 and the flow distribution disk 7 are in interference fit, and the angle is positioned at the joint surface through a positioning pin 21.

[0032] A needle bearing clearance fit is assembled between the cylinder block 23 and the face milling cutter main handle 2, and a flat thrust needle bearing 19 is assembled on the inner end surface of the cylinder block 23.

[0033] By assembling the disc spring 18, the axial clearance between the cylinder block 23, the flow distribution disk 7, and the face milling cutter main handle 2 is eliminated.

[0034] The installation hole between the plunger 11 and the cylinder block 23 is in clearance fit, and a positioning pin 10 is assembled on the circumference of the cylinder block 23 to control the angle of the plunger 11. A orientation groove is made on the cylindrical surface of the plunger 11.

[0035] The inner hole between the flow distribution disk 7 and the cylinder block 23 is in clearance fit and is driven by a key 14.

[0036] Hard alloy rollers 12 are installed in the grooves of the plunger 11, and the spiral surface of the kinetic energy disk 20 contacts the cylindrical surfaces of the two hard alloy rollers 12.

[0037] A round nut is installed at the lower part of the kinetic energy disk 20 for locking.

[0038] The orientation disk 17 and the face milling cutter main handle 2 are locked on the side by screws so as to adjust the angle between the orientation disk 17 and the orientation seat 25.

[0039] The face milling cutter main handle 2 and the key 14 are in interference fit for the face milling cutter interface.

[0040] A stainless steel ball 5 for pressure relief is arranged inside the face milling cutter main handle 2. Specifically, a pressure regulating screw 3 is further arranged inside the face milling cutter main handle 2. A first cylindrical helical compression spring 4 is arranged at the bottom of the pressure regulating screw 3, and a stainless steel ball 5 is arranged at the bottom of the first cylindrical helical compression spring 4.

[0041] With the above structure, through components such as the pressure regulating screw 3 and the stainless steel ball 5, the pressure of the cutting fluid can be adjusted as needed to adapt to different processing requirements. This design is flexible and has strong practicability.

[0042] The main handle 2 of the face milling cutter is installed on the spindle, and kinetic energy is transmitted to the kinetic energy disk 20 at a preset rotational speed. A periodic sine curve is made on the circumference of the kinetic energy disk 20, and this curve drives 11 plungers 11 in the cylinder block 23 to reciprocate up and down in sequence, thereby continuously achieving water absorption and drainage as the spindle rotates.

[0043] Specifically, for the water absorption process: Two arc waist grooves are made on the end face of the flow distribution disk 7. Under the pressure of the coolant water supply pump, the cutting fluid flows into the first arc-shaped groove of the flow distribution disk 7 from the central hole of the pull stud 1, and the plungers 11 absorb water in sequence under the action of moving downward.

[0044] Secondly, for the water drainage process: As the spindle rotates 180 degrees, each water-filled piston gradually enters the water-pressing state in sequence, that is, the cutting fluid in the piston enters the water outlet groove in the flow distribution disk 7, enters the central hole at the lower part of the tool shank through the water outlet hole and is pressurized and ejected; When this device is applied to a center water outlet machine tool, the pull stud 1 is a pull stud with a center water outlet hole.

[0045] When this device is applied to an external water supply device, the pull stud 1 is replaced with a pull stud without a central hole, and the inlet is Figure 4 the external water supply device interface shown in the figure. Specifically, the cutting fluid enters from the directional rod 27, then enters the cylinder block 23 from the directional seat 25, then enters the flow distribution disk 7, and then is sucked into the hole of the plunger 11 through the flow distribution disk 7. This is the water inlet process of the external water supply device.

[0046] In summary, by designing a pressurization device inside the CNC tool shank, secondary pressurization of the cutting fluid is achieved, thereby increasing the pressure when the cutting fluid flushes the tool, effectively improving the cooling effect and the ability to clean up accumulated chips. This can not only extend the service life of the tool, but also reduce cutting residual burrs and improve the machining quality.

[0047] Secondly, by adopting the combined design of the plunger and the flow distribution disk, the reciprocating motion of the plunger driven by the rotation of the spindle realizes the circulating flow and pressurization of the cutting fluid. This design has a simple structure, is easy to operate, and can continuously and stably provide high-pressure cutting fluid.

[0048] When the embodiment of the present utility model is used, the specific steps are as follows:

[0049] Step 1: The cutting fluid enters the main handle 2 of the face milling cutter through the central hole of the pull stud 1;

[0050] Step 2: The cutting fluid enters the flow distribution disk 7 from the central hole;

[0051] Step 3: The cutting fluid is sucked into the hole of the plunger 11 from the first distribution groove of the flow distribution disk 7, and the kinetic energy disk 20 drives the plunger 11 to move downward;

[0052] Step 4: The main shaft drives the spiral surface of the kinetic energy disk 20 to rotate, causing the piston to move upward to compress the volume between the inner hole of the plunger 11 and the inner hole of the cylinder block 23, and the cavity of the plunger 11 is compressed for drainage;

[0053] Step 5: The discharged water enters the distribution groove II of the distribution disk 7 and then flows into the central hole of the main handle 2 of the face milling cutter again. At this time, it has been pressurized;

[0054] Step 6: The pressurized cutting fluid flushes through the central hole of the main handle 2 of the face milling cutter and enters the internal cooling hole of the docking cutter head;

[0055] Step 7: When the pressure is too high, relieve the pressure and return to Step 2.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC toolholder device capable of increasing pressure, characterized in that: The face milling cutter comprises a main handle (2), a cylindrical pin (6), a distribution plate (7), a first hexagon socket head screw (8), a first O-ring (9), a plunger (11), a stamped outer ring needle roller bearing (13), a key (14), a second hexagon socket head screw (15), a round nut (16), a directional plate (17), a butterfly spring (18), a kinetic energy plate (20), an open elastic pin (22), a cylinder body (23), a second cylindrical helical compression spring (24), a directional seat (25), a second O-ring (26), and a directional rod (27); a pull nail (1) is arranged at the top end of the main handle (2) of the face milling cutter; A stainless steel ball (5) for pressure relief is arranged inside the face milling cutter main handle (2); The face milling cutter main handle (2) is mounted on the main shaft and transmits kinetic energy to the kinetic energy disk (20) at a preset rotation speed. A periodic sinusoidal surface is formed on the circumference of the kinetic energy disk (20), and the 11 plungers (11) in the cylinder body (23) are driven by the surface to move up and down alternately in sequence, thereby continuously absorbing and draining water as the main shaft rotates.

2. A pressurized CNC toolholder device according to claim 1, characterized in that: Water absorption process: Two arc waist grooves are made on the end surface of the distribution plate (7). Under the pressure of the coolant water supply pump, the cutting fluid flows from the center hole of the rivet (1) into the first arc groove of the distribution plate (7), and the plunger (11) absorbs water in sequence under the action of downward movement.

3. A pressurized CNC toolholder device according to claim 1, characterized in that: A pressure-adjusting screw (3) is also provided inside the face milling cutter main handle (2), a first cylindrical helical compression spring (4) is provided at the bottom of the pressure-adjusting screw (3), and a stainless steel ball (5) is provided at the bottom of the first cylindrical helical compression spring (4).

4. The pressurized CNC tool holder device according to claim 1, characterized in that: The hole axis between the face milling cutter main handle (2) and the distribution plate (7) is interference fit, and the angle is positioned at the joint surface by a directional pin (21).

5. The pressurized CNC tool holder device according to claim 1, characterized in that: A needle roller bearing clearance fit is provided between the cylinder body (23) and the face milling cutter main handle (2), and a plane thrust needle roller bearing (19) is provided on the inner end surface of the cylinder body (23).

6. The pressurized CNC tool holder device according to claim 1, characterized in that: The plunger (11) and the mounting hole of the cylinder body (23) are clearance-assembled, and a positioning pin (10) is assembled on the circumference of the cylinder body (23) to control the angle of the plunger (11).

7. The pressurized CNC tool holder device according to claim 1, characterized in that: A hard alloy roller (12) is installed in the notch of the plunger (11), and the spiral surface of the kinetic energy disk (20) contacts the cylindrical surfaces of the two hard alloy rollers (12).

8. The pressurized CNC tool holder device according to claim 1, characterized in that: The directional disk (17) and the face milling cutter main handle (2) are screw-locked on the side, so that the directional disk (17) and the directional seat (25) can be adjusted in angle.

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