Five-axis linkage combined machining center

Abstract

The invention provides a five-axis linkage combined machining center which comprises a machining head, a rotary workbench and a tool magazine. The tool magazine comprises a rotary disc and a rotary power device. A cutter cylinder is arranged on the rotating disc, a storage cavity is formed in the cutter cylinder, the outer side of the storage cavity is sleeved with an elastic sleeve, and the elastic sleeve is integrally connected with the inner side wall of the cutter cylinder; an avoiding hole is formed in the top end of the cutter cylinder, and a male connector is arranged at the bottom end of the cutter cylinder. A charging and discharging station and a pressure releasing station are arranged on the rotating track of the rotating disc; a first female joint is arranged on the charging and discharging station, the first female joint is connected with a liquid storage cavity through a hose, an antirust agent is stored in the liquid storage cavity, and a liquid pump is arranged on the hose; a second female joint is arranged on the pressure relief station and is connected with the atmosphere; the first female joint and the second female joint are respectively connected with a first linear power device and a second linear power device; an exhaust hole is formed in the top of the cutter cylinder, and a valve clack is arranged at the exhaust hole. According to the invention, excessive consumption and waste of the antirust agent are avoided, and unified monitoring and replacement of the antirust agent are also realized.

Description

Technical Field

[0001] The present invention relates to the technical field of machining centers, and specifically to a five-axis linkage composite machining center. Background Art

[0002] A five-axis composite machining center is a numerically controlled machine tool integrating functions such as milling, turning, and drilling. Through five-axis linkage technology, it realizes high-precision machining of complex parts in one clamping and multiple processes. For this reason, multiple cutting tools are often equipped inside the machining center, and each cutting tool consists of a tool holder and cutting heads of different types and specifications. According to the instructions of the numerical control program, the machining center will install the corresponding cutting tool on the machining head to perform specific machining processes. Since the machining area inside the CNC lathe needs to cool the cutting head, this will not only cause cutting fluid to remain on the surface of the cutting tool just removed from the machining head, but also make the internal environment of the lathe relatively humid. In this environment, the surface of the cutting head of the idle cutting tool is easily corroded by the cutting fluid and the internal humid air, and then oxidation occurs.

[0003] The patent with the authorization announcement number CN117862895B mentions a horizontal gantry machining center, which protects the cutting head by immersing most of the cutting head in the lubricating oil (i.e., rust inhibitor) in the oil storage cavity. However, in this patent, the volume of each oil storage cavity is constant. In order to ensure that cutting heads of different specifications can be fully immersed in the lubricating oil, a large amount of lubricating oil needs to be always retained in the oil storage cavity, which often leads to excessive consumption and waste of the lubricating oil. In addition, since the oil storage cavities in this patent are independent of each other, maintenance personnel need to monitor and replace the quality of the lubricating oil in each oil storage cavity separately, which undoubtedly increases the workload of the maintenance personnel. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the present invention provides a five-axis linkage composite machining center. On the basis of effectively preventing oxidation on the surface of the cutting head of the idle cutting tool, it not only avoids excessive consumption and waste of the rust inhibitor, but also realizes unified monitoring and replacement of the rust inhibitor, thus reducing the workload of the maintenance personnel.

[0005] The present invention adopts the following technical solutions.

[0006] A five-axis linkage composite machining center includes a machining head, a rotary table, and a tool magazine. The tool magazine includes a turntable and a rotary power device connected to the turntable;

[0007] A plurality of vertically extending tool cylinders are evenly distributed along the circumference of the turntable. A storage cavity is formed inside the tool cylinder, and an elastic sleeve is sleeved outside the storage cavity. The top and bottom ends of the elastic sleeve are integrally connected to the inner side wall of the tool cylinder;

[0008] An avoidance hole for the handle to pass through is provided at the top end of the cutter barrel, and a male connector is provided at the bottom end of the cutter barrel;

[0009] A charging and discharging station and a pressure relief station are successively provided on the rotation trajectory of the turntable;

[0010] A first female connector is provided at the charging and discharging station. The first female connector is connected to a liquid storage cavity through a hose. An antirust agent is stored in the liquid storage cavity. A liquid pump is provided on the hose, and the liquid pump can rotate forward or backward;

[0011] A second female connector is provided at the pressure relief station, and the second female connector is connected to the atmosphere;

[0012] The first female connector and the second female connector are respectively connected with a first linear power device and a second linear power device;

[0013] An exhaust hole is provided at the top of the cutter barrel, and a valve flap is provided at the exhaust hole. The valve flap is used to prevent the outside air from entering the storage cavity through the exhaust hole.

[0014] Further, the male connector includes a core tube communicating with the storage cavity. One end of the core tube facing away from the storage cavity is a closed end. Through holes are provided on the side wall of the core tube, and a valve ring capable of opening or closing the through holes is slidably sleeved outside the core tube;

[0015] One end of the valve ring close to the storage cavity is connected with a first spring, and the first spring makes the valve ring have a tendency to close the through holes;

[0016] Both the first female connector and the second female connector include sleeves. A limiting shoulder capable of abutting against one end of the valve ring facing away from the storage cavity is provided on the inner side wall of the sleeve, and the inner side wall of the sleeve and the outer side wall of the core tube are in clearance fit.

[0017] Further, a sliding cavity vertically extending and connecting with the storage cavity is provided at the top of the cutter barrel. A floating body is hermetically and slidably connected in the sliding cavity. The floating body is connected with a valve plate through a support rib. The floating body has a first position and a second position;

[0018] When the floating body is in the first position, the valve plate closes the exhaust hole;

[0019] When the floating body is in the second position, the valve plate opens the exhaust hole;

[0020] The floating body has a tendency to move towards the first position under the buoyancy of the antirust agent in the storage cavity;

[0021] The floating body is connected with a second spring, and the second spring makes the floating body have a tendency to move towards the second position.

[0022] Further, a locking hole communicating with the avoidance hole is formed in the side wall of the sliding cavity. A ball is movably connected in the locking hole, and a locking groove adapted to the ball is provided on the tool handle.

[0023] When the floating body is in the first position, the side wall of the floating body abuts against the ball, and the ball extends into the avoidance hole.

[0024] When the floating body is in the second position, the side wall of the floating body disengages from the ball, and the ball can withdraw from the avoidance hole.

[0025] Further, a vibration generating mechanism is provided on the tool barrel. The vibration generating mechanism includes a swing arm, a striking member provided on the swing arm, and a power assembly connected to the swing arm.

[0026] Further, the tool barrel includes a fixed barrel body and a movable barrel body slidably sleeved on the fixed barrel body. The movable barrel body is connected with a third spring, and the third spring makes the movable barrel body tend to approach the fixed barrel body.

[0027] The top end of the elastic sleeve is integrally connected with the inner side wall of the movable barrel body, and the bottom end of the elastic sleeve is integrally connected with the inner side wall of the fixed barrel body.

[0028] Further, a mounting bracket is provided on the movable barrel body, and the swing arm is integrally connected with the mounting bracket through a first elastic piece.

[0029] The power assembly includes a ratchet bar extending vertically and integrally connected with the fixed barrel body. A ratchet pawl is hinged on the swing arm, and a limiting portion and a second elastic piece are provided on the swing arm.

[0030] During the process of the movable barrel body moving away from the fixed barrel body, the limiting portion prevents the ratchet pawl from swinging downward.

[0031] The second elastic piece makes the ratchet pawl tend to swing downward.

[0032] Further, an elastic sealing ring is provided at the top end of the tool barrel.

[0033] The beneficial effects of the present invention are as follows:

[0034] When a tool needs to be replaced, first, the tool removed from the processing head is placed in an empty tool barrel. The tool handle of the tool passes through the avoidance hole, so that the tool head on the tool handle extends into the storage cavity. Then, the rotary power device drives the tool barrel loaded with the tool to rotate to the filling and discharging station. When the tool barrel reaches the filling and discharging station, the first linear power device drives the first female joint to communicate with the male joint on the tool barrel.

[0035] Subsequently, the liquid pump starts to rotate forward, injecting the rust inhibitor in the liquid storage cavity into the storage cavity. During the process of the liquid level of the rust inhibitor in the storage cavity rising continuously, the air in the storage cavity will be discharged through the exhaust hole until the cutter head is completely immersed in the rust inhibitor. Subsequently, the liquid pump rotates in reverse, pumping the rust inhibitor in the storage cavity back to the liquid storage cavity. Due to the function of the valve flap, the outside air cannot enter the storage cavity through the exhaust hole. As the rust inhibitor in the liquid storage cavity is pumped away, under the action of the atmospheric pressure, the elastic sleeve will contract inward until it tightly wraps the cutter head. At this time, part of the rust inhibitor will remain between the elastic sleeve and the cutter head.

[0036] Finally, the first linear power device acts again, driving the first female connector to disengage from the male connector. In this way, the elastic sleeve will maintain the state of tightly wrapping the cutter head. This method not only effectively prevents the oxidation of the surface of the cutter head of the idle tool, but also avoids the excessive consumption and waste of the rust inhibitor. At the same time, by uniformly storing the unused rust inhibitor in the liquid storage cavity, the unified monitoring and replacement of the rust inhibitor are realized, thus greatly reducing the workload of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0039] Figure 2 It is Figure 1 an enlarged view of part A of (at this time, the elastic sleeve is in a contracted state);

[0040] Figure 3 It is Figure 2 an enlarged view of part B of ;

[0041] Figure 4 It is Figure 2 an enlarged view of part C of ;

[0042] Figure 5 It is a schematic diagram of part of the structure of this embodiment (at this time, the elastic sleeve is in an expanded state).

[0043] DESCRIPTION OF THE REFERENCE NUMERALS:

[0044] The processing head 11, the rotary table 12,

[0045] The tool magazine 2,

[0046] The turntable 21, the rotary power device 22,

[0047] Tool cylinder 23, fixed cylinder body 231, moving cylinder body 232, third spring 233,

[0048] Exhaust hole 2311, valve flap 2312,

[0049] Elastic sleeve 24,

[0050] Male joint 25, core pipe 251, through hole 2511, valve ring 252, first spring 253,

[0051] First female joint 261, second female joint 262, sleeve 2601, limiting shoulder 2602,

[0052] Hose 271, liquid storage cavity 272, liquid pump 273,

[0053] Elastic sealing ring 28,

[0054] Floating body 31, support rib 32, valve plate 33, second spring 34, ball 35,

[0055] Swing arm 41, knocking piece 42, mounting bracket 43, first elastic piece 44, ratchet bar 45, ratchet pawl 46, limiting part 47, second elastic piece 48,

[0056] Tool handle 51, tool tip 52, locking groove 511. Specific embodiments

[0057] The drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for a better illustration of this embodiment, some components in the drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual product.

[0058] For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The technical solutions of the present invention will be further described below with reference to the drawings and embodiments.

[0059] A five-axis linkage composite machining center as shown in the drawings includes a machining head 11, a rotary table 12 and a tool magazine 2. The tool magazine 2 includes a turntable 21 and a rotary power device 22 connected to the turntable 21;

[0060] A plurality of vertically extending tool cylinders 23 are evenly distributed along the circumference of the turntable 21. A receiving cavity is formed in the tool cylinder 23, and an elastic sleeve 24 is sleeved outside the receiving cavity. The top and bottom ends of the elastic sleeve 24 are integrally connected to the inner side wall of the tool cylinder 23;

[0061] An avoidance hole for the tool handle 51 to pass through is opened at the top end of the tool cylinder 23, and a male joint 25 is provided at the bottom end of the tool cylinder 23;

[0062] A charging and discharging station and a pressure relief station are sequentially arranged on the rotation trajectory of the turntable 21;

[0063] A first female connector 261 is provided at the filling and discharging station. The first female connector 261 is connected to a liquid storage cavity 272 through a hose 271. An antirust agent is stored in the liquid storage cavity 272. A liquid pump 273 is provided on the hose 271, and the liquid pump 273 can rotate forward or backward.

[0064] A second female connector 262 is provided at the pressure relief station, and the second female connector 262 is connected to the atmosphere.

[0065] The first female connector 261 and the second female connector 262 are respectively connected to a first linear power device and a second linear power device.

[0066] An exhaust hole 2311 is provided at the top of the tool holder 23, and a valve flap 2312 is provided at the exhaust hole 2311. The valve flap 2312 is used to prevent external air from entering the storage cavity through the exhaust hole 2311.

[0067] In this embodiment, the rotary power device 22 includes a motor and a reduction gear set; the first linear power device and the second linear power device can be any one of a cylinder, a hydraulic cylinder, and an electric push rod.

[0068] Specifically, when a tool needs to be replaced, first, the tool removed from the processing head 11 is installed on an empty tool holder 23. At this time, the elastic sleeve 24 in the tool holder 23 is in an expanded state. The tool shank 51 of the tool passes through the avoidance hole, so that the cutting head 52 on the tool shank 51 extends into the storage cavity. Then, the rotary power device 22 drives the tool holder 23 loaded with the tool to rotate to the filling and discharging station. After the tool holder 23 reaches the filling and discharging station, the first linear power device drives the first female connector 261 to communicate with the male connector 25 on the tool holder 23.

[0069] Subsequently, the liquid pump 273 starts to rotate forward, and injects the antirust agent in the liquid storage cavity 272 into the storage cavity. During the process of the antirust agent liquid level in the storage cavity rising continuously, the air in the storage cavity will be discharged through the exhaust hole 2311 until the cutting head 52 is completely immersed in the antirust agent. Then, the liquid pump 273 rotates backward, and pumps the antirust agent in the storage cavity back to the liquid storage cavity 272. Due to the function of the valve flap 2312, external air cannot enter the storage cavity through the exhaust hole 2311. As the antirust agent in the liquid storage cavity 272 is pumped away, under the action of atmospheric pressure, the elastic sleeve 24 will contract inward until it tightly wraps the cutting head 52. At this time, part of the antirust agent will remain between the elastic sleeve 24 and the cutting head 52.

[0070] Finally, the first linear power device acts again, driving the first female connector 261 to disengage from the male connector 25. In this way, under the negative pressure adsorption effect of the storage cavity, the tool is firmly adsorbed on the tool holder 23, and the elastic sleeve 24 will maintain the state of tightly wrapping the cutting head 52.

[0071] In subsequent operations, when it is necessary to use the tool on the tool cylinder 23, the rotary power device 22 will drive the tool cylinder 23 to rotate to the pressure relief station. After the tool cylinder 23 reaches the pressure relief station, the second linear power device will drive the second female joint 262 to communicate with the male joint 25 on the tool cylinder 23. At this time, the outside air will enter between the elastic sleeve 24 and the tool head 52 through the second female joint 262, so that the negative pressure adsorption effect of the storage cavity on the tool fails. In this way, the tool can be removed from the tool cylinder 23.

[0072] Preferably, the male joint 25 includes a core tube 251 communicating with the storage cavity. One end of the core tube 251 facing away from the storage cavity is a closed end. A through hole 2511 is formed in the side wall of the core tube 251. A valve ring 252 that can open or close the through hole 2511 is slidably sleeved outside the core tube 251;

[0073] One end of the valve ring 252 close to the storage cavity is connected with a first spring 253, and the first spring 253 makes the valve ring 252 tend to close the through hole 2511;

[0074] Both the first female joint 261 and the second female joint 262 include a sleeve 2601. A limiting shoulder 2602 that can abut against one end of the valve ring 252 facing away from the storage cavity is provided on the inner side wall of the sleeve 2601. The inner side wall of the sleeve 2601 and the outer side wall of the core tube 251 are in clearance fit.

[0075] When the axis lines of the sleeve 2601 and the core tube 251 are aligned and move towards the storage cavity, the limiting shoulder 2602 on the sleeve 2601 will abut against the valve ring 252, driving the valve ring 252 to move towards the storage cavity, thereby opening the through hole 2511 and compressing the first spring 253; when the sleeve 2601 moves away from the storage cavity, the first spring 253 releases elastic force, pushing the valve ring 252 to close the through hole 2511.

[0076] To prevent the rust inhibitor from overflowing from the exhaust hole 2311. Preferably, the top of the tool cylinder 23 is provided with a sliding cavity that extends vertically and connects to the storage cavity. A floating body 31 is hermetically slidably connected in the sliding cavity. The floating body 31 is connected with a valve plate 33 through a support rib 32. The floating body 31 has a first position and a second position;

[0077] When the floating body 31 is in the first position, the valve plate 33 closes the exhaust hole 2311;

[0078] When the floating body 31 is in the second position, the valve plate 33 opens the exhaust hole 2311;

[0079] The floating body 31 has a tendency to move towards the first position under the buoyancy of the rust inhibitor in the storage cavity;

[0080] The floating body 31 is connected with a second spring 34, and the second spring 34 makes the floating body 31 have a tendency to move towards the second position.

[0081] When the liquid level of the rust inhibitor in the storage cavity reaches a predetermined height, the buoyancy of the rust inhibitor on the floating body 31 causes the floating body 31 to move upward to the first position and compress the second spring 34. At this time, the valve plate 33 closes the exhaust hole 2311. When the liquid level of the rust inhibitor in the storage cavity drops, the second spring 34 releases its elastic force and pushes the floating body 31 to move downward.

[0082] To prevent the hydraulic pressure from pushing the tool upward when the liquid pump 273 injects the rust inhibitor into the storage cavity, causing the rust inhibitor to overflow from the connection between the tool handle 51 and the tool barrel 23. Preferably, a locking hole connecting to the avoidance hole is provided on the side wall of the sliding cavity, and a ball 35 is movably connected in the locking hole. A locking groove 511 adapted to the ball 35 is provided on the tool handle 51;

[0083] When the floating body 31 is in the first position, the side wall of the floating body 31 abuts against the ball 35, and the ball 35 extends into the avoidance hole;

[0084] When the floating body 31 is in the second position, the side wall of the floating body 31 disengages from the ball 35, and the ball 35 can withdraw from the avoidance hole.

[0085] When the liquid level of the rust inhibitor in the storage cavity reaches a predetermined height, the buoyancy pushes the floating body 31 to rise to the first position. The side wall of the floating body 31 abuts against the ball 35, and the ball 35 extends into the avoidance hole and is embedded in the locking groove 511. At this time, even if the liquid pump 273 continues to inject the rust inhibitor into the storage cavity, the ball 35 can lock the tool handle 51 and the tool barrel 23 to prevent the rust inhibitor from overflowing from the connection between the tool handle 51 and the tool barrel 23.

[0086] It can be understood that the cutting fluid remaining on the tool tip 52 will form a water film, which hinders the contact between the rust inhibitor and the surface of the tool tip 52, resulting in the oil film formed by the rust inhibitor being unable to evenly cover the surface of the tool tip 52, thereby reducing the rust prevention effect. To solve this problem, preferably, the tool barrel 23 is provided with a vibration generating mechanism. The vibration generating mechanism includes a swing arm 41, a knocking member 42 provided on the swing arm 41, and a power component connected to the swing arm 41. Among them, during the process of the liquid pump 273 injecting the rust inhibitor into the storage cavity, the power component drives the swing arm 41 to swing, so that the knocking member 42 on the swing arm 41 impacts the tool handle 51, and the vibration generated by the impact is transmitted to the tool tip 52 through the tool handle 51, thereby causing the water film on the surface of the tool tip 52 to break, which helps the rust inhibitor to fully contact the surface of the tool tip 52, thereby enhancing the rust prevention effect.

[0087] Preferably, the tool barrel 23 includes a fixed barrel body 231 and a movable barrel body 232 slidably sleeved on the fixed barrel body 231. The movable barrel body 232 is connected with a third spring 233, and the third spring 233 makes the movable barrel body 232 tend to approach the fixed barrel body 231;

[0088] The top end of the elastic sleeve 24 is integrally connected to the inner side wall of the moving cylinder body 232, and the bottom end of the elastic sleeve 24 is integrally connected to the inner side wall of the fixed cylinder body 231.

[0089] Preferably, an installation frame 43 is provided on the moving cylinder body 232, and the swing arm 41 is integrally connected to the installation frame 43 through the first elastic piece 44;

[0090] The power assembly includes a ratchet bar 45 that extends vertically and is integrally connected to the fixed cylinder body 231. A ratchet pawl 46 is hinged on the swing arm 41, and a limiting portion 47 and a second elastic piece 48 are provided on the swing arm 41;

[0091] During the process of the moving cylinder body 232 moving away from the fixed cylinder body 231, the limiting portion 47 prevents the ratchet pawl 46 from swinging downward;

[0092] The second elastic piece 48 makes the ratchet pawl 46 tend to swing downward.

[0093] During the process of the liquid pump 273 injecting the rust inhibitor into the storage cavity, when the floating body 31 rises to the first position under the action of buoyancy, the valve plate 33 closes the exhaust hole 2311, and the ball 35 locks the tool handle 51 and the tool cylinder 23. At this time, the liquid pump 273 continues to inject the rust inhibitor into the storage cavity. The moving cylinder body 232 moves away from the fixed cylinder body 231 under the action of hydraulic pressure, and drives the ratchet pawl 46 to move upward along the ratchet bar 45. However, the ratchet pawl 46 is prevented by the limiting portion 47 from swinging downward. In this way, when the ratchet pawl 46 aligns with the tooth peak on the ratchet bar 45, the swing arm 41 swings away from the tool cylinder 23, deforming the first elastic piece 44. And when the ratchet pawl 46 aligns with the tooth valley on the ratchet bar 45, the first elastic piece 44 releases its elastic force, driving the swing arm 41 to swing towards the tool cylinder 23 until the knocking member 42 on the swing arm 41 hits the tool handle 51. As the ratchet pawl 46 cycles through alignment with the tooth peak and tooth valley on the ratchet bar 45, the swing arm 41 will swing back and forth, so that the knocking member 42 hits the tool handle 51 multiple times, generating vibrations.

[0094] During the process of the liquid pump 273 pumping the rust inhibitor in the storage cavity back to the liquid storage cavity 272, the ratchet pawl 46 is not blocked by the limiting portion 47 and can swing upward, so that the swing arm 41 does not swing. This avoids the oil film formed by the rust inhibitor being damaged by vibrations during the process of pumping the rust inhibitor in the storage cavity away.

[0095] Preferably, an elastic sealing ring 28 is provided at the top end of the tool cylinder 23.

[0096] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A five-axis linkage composite machining center, comprising a machining head, a rotary table and a tool magazine, characterized in that: The tool magazine includes a turntable and a rotating power device connected to the turntable; A plurality of vertically extending knife cylinders are evenly distributed along the circumferential direction on the rotating disk, a storage cavity is formed in the knife cylinder, an elastic sleeve is sleeved on the outer side of the storage cavity, and the top and bottom ends of the elastic sleeve are integrally connected to the inner side wall of the knife cylinder; The top end of the knife cylinder is provided with an avoidance hole for the knife handle to pass through, and the bottom end of the knife cylinder is provided with a male joint; The rotating track of the turntable is provided with a filling and discharging station and a pressure release station in sequence; The filling and discharging station is provided with a first female connector, the first female connector is connected to a liquid storage cavity through a hose, the liquid storage cavity stores a rust inhibitor, the hose is provided with a liquid pump, and the liquid pump can rotate forward or reverse; The pressure release station is provided with a second female connector, and the second female connector is connected to the atmosphere; The first female connector and the second female connector are respectively connected to a first linear power device and a second linear power device; An exhaust hole is provided at the top of the knife cylinder, and a valve flap is provided at the exhaust hole, and the valve flap is used to prevent external air from entering the storage cavity through the exhaust hole.

2. A five-axis linkage composite machining center according to claim 1, characterized in that: The male connector comprises a core tube connected to the receiving cavity, one end of the core tube facing away from the receiving cavity and a closed end, a through hole is formed on the side wall of the core tube, and a valve ring capable of opening or closing the through hole is slidably sleeved on the outer side of the core tube; One end of the valve ring close to the receiving cavity is connected to a first spring, and the first spring makes the valve ring have a tendency to close the through hole; The first female connector and the second female connector both include a sleeve, the inner wall of the sleeve is provided with a limiting shoulder capable of abutting against an end of the valve ring facing away from the receiving cavity, and the inner wall of the sleeve and the outer wall of the core tube are clearance-matched.

3. The five-axis linkage composite machining center according to claim 1, characterized in that: The top of the knife cylinder is provided with a sliding cavity extending vertically and connected to the storage cavity, a floating body is sealed and slidably connected in the sliding cavity, the floating body is connected to the valve plate through a supporting rib, and the floating body has a first position and a second position; When the float is in the first position, the valve plate closes the exhaust hole; When the float is in the second position, the valve plate opens the exhaust hole; The floating body has a tendency to move toward the first position under the buoyancy of the rust inhibitor in the receiving cavity; The float is connected to a second spring, and the second spring causes the float to have a tendency to move toward the second position.

4. The five-axis linkage composite machining center according to claim 3, characterized in that: The side wall of the sliding cavity is provided with a locking hole connected to the avoidance hole, a ball is movably connected in the locking hole, and a locking groove adapted to the ball is provided on the knife handle; When the float is in the first position, the side wall of the float abuts against the ball, and the ball extends into the avoidance hole; When the float is in the second position, the side wall of the float is separated from the ball, and the ball can exit the avoidance hole.

5. The five-axis linkage composite machining center according to claim 1, characterized in that: The knife cylinder is provided with a vibration mechanism, which includes a swing arm, a striking piece arranged on the swing arm, and a power component connected to the swing arm.

6. The five-axis linkage composite machining center according to claim 5, characterized in that: The knife cylinder comprises a fixed cylinder body and a movable cylinder body slidably sleeved with the fixed cylinder body, the movable cylinder body is connected with a third spring, and the third spring makes the movable cylinder body have a tendency to approach the fixed cylinder body; The top end of the elastic sleeve is integrally connected to the inner side wall of the moving cylinder body, and the bottom end of the elastic sleeve is integrally connected to the inner side wall of the fixed cylinder body.

7. The five-axis linkage composite machining center according to claim 6, characterized in that: The moving cylinder is provided with a mounting frame, and the swing arm is integrally connected to the mounting frame via a first elastic sheet; The power assembly includes a ratchet bar extending vertically and integrally connected to the fixed cylinder, a ratchet pawl is hinged on the swing arm, and a limiting portion and a second elastic sheet are provided on the swing arm; When the movable cylinder moves away from the fixed cylinder, the limiting portion prevents the pawl from swinging downward; The second elastic sheet enables the pawl to have a tendency to swing downward.

8. The five-axis linkage composite machining center according to claim 1, characterized in that: An elastic sealing ring is arranged on the top of the knife cylinder.

Images