Five-axis linkage compound machining center

Abstract

The application provides a five-axis linkage composite machining center, which comprises a machining head, a rotary worktable and a tool magazine, the tool magazine comprises a rotary disc and a rotary power device; a tool cylinder is arranged on the rotary disc, a receiving cavity is formed in the tool cylinder, an elastic sleeve is arranged outside the receiving cavity, and the elastic sleeve is integrally connected with the inner side wall of the tool cylinder; an avoiding hole is arranged at the top end of the tool cylinder, and a male joint is arranged at the bottom end of the tool cylinder; a charging and discharging station and a pressure relief station are arranged on the rotary track of the rotary disc; a first female joint is arranged on the charging and discharging station, a liquid storage cavity is connected to the first female joint through a hose, rust preventive 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 the second female joint is connected to the atmosphere; the first female joint and the second female joint are respectively connected to a first linear power device and a second linear power device; an exhaust hole is arranged at the top of the tool cylinder, and a valve is arranged at the exhaust hole. The application avoids excessive consumption and waste of the rust preventive, and realizes unified monitoring and replacement of the rust preventive.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining centers, in particular to a five-axis linkage composite machining center. BACKGROUND

[0002] The five-axis composite machining center is a numerical control machine tool integrating milling, turning, drilling and other functions. It realizes one-time clamping and multi-process high-precision machining of complex parts through five-axis linkage technology. Therefore, the machining center is often equipped with multiple tools, each tool consisting of a tool holder and different types and specifications of tool heads. According to the instructions of the numerical control program, the machining center will install the corresponding tool on the machining head to perform a specific machining process. Since the machining area inside the numerical control lathe needs to cool the tool head, not only will the surface of the tool just removed from the machining head be left with cutting fluid, but also the internal environment of the lathe will be relatively humid. In this environment, the surface of the idle tool head is easily corroded by cutting fluid and internal humid air, resulting in oxidation.

[0003] The patent with the authorized announcement number CN117862895B mentions a horizontal gantry machining center, which protects the tool head by immersing most of the tool 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, and in order to ensure that tool heads of different specifications can be fully immersed in the lubricating oil, a large amount of lubricating oil needs to be retained in the oil storage cavity at all times, which often leads to excessive consumption and waste of lubricating oil. In addition, since each oil storage cavity in this patent is independent of each other, maintenance personnel need to monitor and replace the quality of lubricating oil in each oil storage cavity in a timely manner, which undoubtedly increases the workload of maintenance personnel. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application provides a five-axis linkage composite machining center, which not only effectively prevents the surface of the idle tool head from being oxidized, but also avoids the excessive consumption and waste of rust inhibitor, and realizes the unified monitoring and replacement of the rust inhibitor, thereby reducing the workload of maintenance personnel.

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

[0006] A five-axis linkage composite machining center, comprising a machining head, a rotary worktable and a tool magazine, the tool magazine comprising a rotary disc and a rotary power device connected to the rotary disc;

[0007] A plurality of vertically extending tool barrels are uniformly distributed on the rotary disc in the circumferential direction, and a receiving cavity is formed in each tool barrel. An elastic sleeve is sleeved on the outside of the receiving cavity, and the top end and the bottom end of the elastic sleeve are integrally connected with the inner side wall of the tool barrel.

[0008] The top end of the cutter barrel is provided with a avoiding hole for the cutter handle to pass through, and the bottom end of the cutter barrel is provided with a male joint;

[0009] The rotation track of the rotating disc is sequentially provided with a filling and discharging station and a pressure releasing station;

[0010] The filling and discharging station is provided with a first female joint, the first female joint is connected with a liquid storage cavity through a hose, the liquid storage cavity stores rust-proof agent, the hose is provided with a liquid pump, and the liquid pump can rotate forward or reversely;

[0011] The pressure releasing station is provided with a second female joint, and the second female joint is connected with the atmosphere;

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

[0013] The top of the cutter barrel is provided with an exhaust hole, and the exhaust hole is provided with a valve clack, which is used to prevent external air from entering the receiving cavity through the exhaust hole.

[0014] Further, the male joint comprises a core pipe in communication with the receiving cavity, one end of the core pipe away from the receiving cavity is a closed end, the side wall of the core pipe is provided with a through hole, and the outer side of the core pipe is slidably sleeved with a valve ring capable of opening or closing the through hole;

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

[0016] The first female joint and the second female joint both comprise a sleeve, the inner side wall of the sleeve is provided with a limiting shoulder capable of abutting against one end of the valve ring away from the receiving cavity, and the inner side wall of the sleeve and the outer side wall of the core pipe are gap-fitted.

[0017] Further, the top of the cutter barrel is provided with a sliding cavity vertically extending and connected with the receiving cavity, a float is sealingly and slidably connected in the sliding cavity, the float is connected with a valve plate through a supporting rib, and the float has a first position and a second position;

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

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

[0020] The float has a tendency to move towards the first position under the buoyancy of the rust-proof agent in the receiving cavity;

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

[0022] Further, the side wall of the sliding cavity is provided with a locking hole connected with the avoiding hole, and a ball is movably connected in the locking hole.

[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 avoiding hole.

[0024] When the floating body is in the second position, the side wall of the floating body is separated from the ball, and the ball can exit the avoiding hole.

[0025] Further, the cutter barrel is provided with a vibration starting mechanism, which comprises a swing arm, a knocking piece arranged on the swing arm, and a power assembly connected with the swing arm.

[0026] Further, the cutter barrel comprises a fixed barrel body and a movable barrel body which is slidably sleeved with the fixed barrel body, and the movable barrel body is connected with a third spring, so that the movable barrel body has a tendency 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, the movable barrel body is provided with a mounting frame, and the swing arm is integrally connected with the mounting frame through a first elastic sheet.

[0029] The power assembly comprises a ratchet strip which extends vertically and is integrally connected with the fixed barrel body, and the swing arm is hingedly connected with a ratchet pawl, and the swing arm is provided with a limiting part and a second elastic sheet.

[0030] During the process that the movable barrel body moves away from the fixed barrel body, the limiting part prevents the ratchet pawl from swinging downward.

[0031] The second elastic sheet makes the ratchet pawl have a tendency to swing downward.

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

[0033] The present application has the following advantages:

[0034] When the cutter needs to be replaced, first, the cutter which is detached from the machining head is put into an empty cutter barrel. The cutter handle passes through the avoiding hole, so that the cutter head on the cutter handle extends into the storage cavity. Then, the rotary power device drives the cutter barrel loaded with the cutter to rotate to the charging and discharging position. When the cutter barrel reaches the charging and discharging position, the first linear power device drives the first female connector to communicate with the male connector on the cutter barrel.

[0035] Subsequently, the liquid pump starts to rotate forward, and the rust-proof agent in the storage cavity is injected into the receiving cavity. During the process of the rising of the liquid level of the rust-proof agent in the receiving cavity, the air in the receiving cavity is discharged through the exhaust hole until the rust-proof agent completely immerses the tool head. Subsequently, the liquid pump reverses, and the rust-proof agent in the receiving cavity is drawn back to the storage cavity. Due to the action of the valve, the air outside cannot enter the receiving cavity through the exhaust hole. With the rust-proof agent in the storage cavity being drawn away, the elastic sleeve will shrink inward under the action of the atmospheric pressure until it tightly wraps the tool head. At this time, part of the rust-proof agent will remain between the elastic sleeve and the tool head.

[0036] Finally, the first linear power device acts again to drive the first female joint to separate from the male joint. In this way, the elastic sleeve will remain in the state of tightly wrapping the tool head. This method not only effectively prevents the oxidation phenomenon of the tool head surface of the idle tool, but also avoids the excessive consumption and waste of the rust-proof agent. At the same time, by uniformly storing the unused rust-proof agent in the storage cavity, the unified monitoring and replacement of the rust-proof agent are realized, thereby greatly reducing the work burden of the maintenance personnel. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

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

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

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

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

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

[0043] Explanation of reference signs:

[0044] processing head 11, rotating worktable 12,

[0045] tool magazine 2,

[0046] turntable 21, rotating power device 22,

[0047] knife barrel 23, fixed barrel body 231, movable barrel body 232, third spring 233,

[0048] exhaust hole 2311, valve disc 2312,

[0049] elastic sleeve 24,

[0050] male joint 25, core tube 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] float 31, support rib 32, valve plate 33, second spring 34, ball 35,

[0055] swing arm 41, knocking piece 42, mounting frame 43, first spring piece 44, ratchet 45, pawl 46, limiting portion 47, second spring piece 48,

[0056] knife handle 51, knife head 52, locking groove 511. DETAILED DESCRIPTION

[0057] The drawings are only used for illustrative description and cannot be understood as limitation of the patent; in order to better illustrate the embodiment, some components in the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product.

[0058] It is understandable for those skilled in the art that some known structures and their descriptions in the drawings can be omitted. The technical solutions of the present application are further described below in combination with the drawings and embodiments.

[0059] A five-axis linkage composite machining center, as shown in the drawings, comprises a machining head 11, a rotary worktable 12 and a tool magazine 2, the tool magazine 2 comprising a rotating disc 21 and a rotary power device 22 connected with the rotating disc 21;

[0060] A plurality of vertically extending knife barrels 23 are uniformly distributed on the rotating disc 21 in the circumferential direction, a receiving cavity is formed in the knife barrel 23, an elastic sleeve 24 is sleeved on the outside of the receiving cavity, and the top end and the bottom end of the elastic sleeve 24 are integrally connected with the inner side wall of the knife barrel 23;

[0061] An avoiding hole is formed in the top end of the knife barrel 23 for the knife handle 51 to pass through, and the bottom end of the knife barrel 23 is provided with a male joint 25;

[0062] A charging and discharging station and a pressure releasing station are sequentially arranged on the rotating track of the rotating disc 21;

[0063] The first female joint 261 is provided on the filling and discharging station, and is connected with a liquid storage cavity 272 through a hose 271. The liquid storage cavity 272 stores rust-proof agent. The hose 271 is provided with a liquid pump 273 which can rotate forward or reversely.

[0064] The second female joint 262 is provided on the pressure releasing station and is connected with the atmosphere.

[0065] The first female joint 261 and the second female joint 262 are respectively connected with the first linear power device and the second linear power device.

[0066] The top of the cutter barrel 23 is provided with an exhaust hole 2311, and a valve 2312 is arranged at the exhaust hole 2311 to prevent the outside air from entering the receiving cavity through the exhaust hole 2311.

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

[0068] Specifically, when the cutter needs to be replaced, the cutter dismounted from the machining head 11 is first mounted on an empty cutter barrel 23. At this time, the elastic sleeve 24 in the cutter barrel 23 is in an expanded state. The shank 51 of the cutter passes through the avoiding hole, so that the cutting head 52 on the shank 51 extends into the receiving cavity. Then, the rotary power device 22 drives the cutter barrel 23 loaded with the cutter to rotate to the filling and discharging station. After the cutter barrel 23 reaches the filling and discharging station, the first linear power device drives the first female joint 261 to communicate with the male joint 25 on the cutter barrel 23.

[0069] Subsequently, the liquid pump 273 starts to rotate forward to inject the rust-proof agent in the liquid storage cavity 272 into the receiving cavity. In the process of continuously rising of the liquid level of the rust-proof agent in the receiving cavity, the air in the receiving cavity is discharged through the exhaust hole 2311 until the rust-proof agent completely immerses the cutting head 52. Subsequently, the liquid pump 273 reverses to draw the rust-proof agent in the receiving cavity back to the liquid storage cavity 272. Due to the action of the valve 2312, the outside air cannot enter the receiving cavity through the exhaust hole 2311. With the rust-proof agent in the liquid storage cavity 272 being drawn away, the elastic sleeve 24 will contract inwardly under the action of the atmospheric pressure until it tightly wraps the cutting head 52. At this time, part of the rust-proof agent will remain between the elastic sleeve 24 and the cutting head 52.

[0070] Finally, the first linear power device acts again to drive the first female joint 261 to separate from the male joint 25. In this way, under the negative pressure adsorption of the receiving cavity, the cutter is tightly adsorbed on the cutter barrel 23, and the elastic sleeve 24 will maintain the state of tightly wrapping the cutting head 52.

[0071] In the subsequent operation, when the tool on the tool cylinder 23 needs to be taken out, the rotating power device 22 drives the tool cylinder 23 to rotate to the pressure release station. After the tool cylinder 23 reaches the pressure release station, the second linear power device drives the second female joint 262 to communicate with the male joint 25 on the tool cylinder 23. At this time, the external air enters 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 is invalid. In this way, the tool can be taken off from the tool cylinder 23.

[0072] Preferably, the male joint 25 comprises a core pipe 251 communicating with the storage cavity, one end of the core pipe 251 opposite to the storage cavity is a closed end, a side wall of the core pipe 251 is provided with a through hole 2511, and a valve ring 252 capable of opening or closing the through hole 2511 is sleeved on the outside of the core pipe 251;

[0073] The valve ring 252 is connected with a first spring 253 close to the storage cavity, and the first spring 253 makes the valve ring 252 have a tendency to close the through hole 2511;

[0074] The first female joint 261 and the second female joint 262 each comprise a sleeve pipe 2601, a limiting shoulder 2602 capable of abutting against one end of the valve ring 252 opposite to the storage cavity is arranged on the inner side wall of the sleeve pipe 2601, and the inner side wall of the sleeve pipe 2601 is in clearance fit with the outer side wall of the core pipe 251.

[0075] When the sleeve pipe 2601 is aligned with the axis of the core pipe 251 and moves towards the storage cavity, the limiting shoulder 2602 on the sleeve pipe 2601 abuts against the valve ring 252, drives 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 pipe 2601 moves away from the storage cavity, the first spring 253 releases the elastic force and pushes the valve ring 252 to close the through hole 2511.

[0076] In order to avoid the anti-rust agent overflowing from the exhaust hole 2311, preferably, the top of the tool cylinder 23 is provided with a sliding cavity extending vertically and connected with the storage cavity, a float 31 is sealingly and slidingly connected in the sliding cavity, the float 31 is connected with a valve plate 33 through a supporting rib 32, and the float 31 has a first position and a second position;

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

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

[0079] The float 31 has a tendency to move towards the first position under the buoyancy of the anti-rust agent in the storage cavity;

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

[0081] When the rust inhibitor level in the receiving cavity reaches the predetermined height, the buoyancy of the rust inhibitor on the float 31 causes the float 31 to move upward to the first position and compress the second spring 34. At this time, the valve plate 33 closes the vent 2311. When the rust inhibitor level in the receiving cavity drops, the second spring 34 releases its elastic force, pushing the float 31 downward.

[0082] To prevent the hydraulic pump 273 from injecting rust inhibitor into the receiving cavity and causing the hydraulic pressure to push the tool upward, resulting in the rust inhibitor overflowing from the connection between the tool holder 51 and the tool barrel 23, preferably, the side wall of the sliding cavity is provided with a locking hole for connecting the clearance hole, a ball bearing 35 is movably connected in the locking hole, and the tool holder 51 is provided with a locking groove 511 adapted to the ball bearing 35;

[0083] When the float 31 is in the first position, the side wall of the float 31 abuts against the ball 35, and the ball 35 extends into the clearance hole.

[0084] When the float 31 is in the second position, the side wall of the float 31 disengages from the ball 35, and the ball 35 can exit the clearance hole.

[0085] When the level of the rust inhibitor in the receiving cavity reaches the predetermined height, buoyancy pushes the float 31 to the first position. The side wall of the float 31 abuts against the ball bearing 35, which extends into the clearance hole and embeds into the locking groove 511. At this time, even if the liquid pump 273 continues to inject rust inhibitor into the receiving cavity, the ball bearing 35 can lock the tool handle 51 and the tool barrel 23, preventing the rust inhibitor from overflowing from the connection between the tool handle 51 and the tool barrel 23.

[0086] Understandably, the cutting fluid remaining on the cutting head 52 will form a water film, hindering the contact between the rust inhibitor and the surface of the cutting head 52. This results in the oil film formed by the rust inhibitor not evenly covering the surface of the cutting head 52, thus reducing the rust prevention effect. To solve this problem, preferably, the cutting head 23 is provided with a vibration mechanism, which includes a swing arm 41, a striking element 42 disposed on the swing arm 41, and a power component connected to the swing arm 41. During the process of the liquid pump 273 injecting the rust inhibitor into the receiving cavity, the power component drives the swing arm 41 to swing, causing the striking element 42 on the swing arm 41 to strike the cutting head 51. The vibration generated by the impact is transmitted to the cutting head 52 through the cutting head 51, thereby breaking the water film on the surface of the cutting head 52. This helps the rust inhibitor to fully contact the surface of the cutting head 52, thus enhancing the rust prevention effect.

[0087] Preferably, the cutter barrel 23 includes a fixed barrel 231 and a movable barrel 232 that is slidably sleeved with the fixed barrel 231. The movable barrel 232 is connected to a third spring 233, which causes the movable barrel 232 to tend to move closer to the fixed barrel 231.

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

[0089] Preferably, the movable cylinder 232 is provided with a mounting frame 43, and the swing arm 41 is integrally connected with the mounting frame 43 through a first elastic sheet 44.

[0090] The power assembly comprises a ratchet 45 extending vertically and integrally connected with the fixed cylinder 231, and the swing arm 41 is hingedly connected with a pawl 46, and the swing arm 41 is provided with a limiting portion 47 and a second elastic sheet 48.

[0091] During the process that the movable cylinder 232 moves away from the fixed cylinder 231, the limiting portion 47 prevents the pawl 46 from swinging downward.

[0092] The second elastic sheet 48 makes the pawl 46 have a tendency to swing downward.

[0093] During the process that the liquid pump 273 injects the rust-proof agent into the storage cavity, when the float 31 rises to the first position under the action of the buoyancy, the valve plate 33 closes the exhaust hole 2311, and the ball 35 locks the handle 51 and the cutter cylinder 23. At this time, the liquid pump 273 continues to inject the rust-proof agent into the storage cavity, the movable cylinder 232 moves away from the fixed cylinder 231 under the action of the liquid pressure, and drives the pawl 46 to move upward along the ratchet 45, and the pawl 46 cannot swing downward due to the prevention of the limiting portion 47. In this way, when the pawl 46 is aligned with the tooth peak on the ratchet 45, the swing arm 41 swings away from the cutter cylinder 23, so that the first elastic sheet 44 deforms. When the pawl 46 is aligned with the tooth valley on the ratchet 45, the first elastic sheet 44 releases the elastic force, drives the swing arm 41 to swing toward the cutter cylinder 23, and the knocking part 42 on the swing arm 41 hits the handle 51. With the cycle alignment of the pawl 46 and the tooth peak and the tooth valley on the ratchet 45, the swing arm 41 reciprocally swings, so that the knocking part 42 repeatedly hits the handle 51, and vibration is generated.

[0094] During the process that the liquid pump 273 draws the rust-proof agent in the storage cavity back to the liquid storage cavity 272, the pawl 46 can swing upward without the prevention of the limiting portion 47, so that the swing arm 41 does not swing, which avoids that the oil film formed by the rust-proof agent is destroyed by vibration during the process that the rust-proof agent in the storage cavity is drawn away.

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

[0096] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Based on the above description, any other variations or changes can be made by those skilled in the art without departing from the spirit and principles of the present application. It is not necessary to list all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall fall within the scope of the claims of the present application.

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 rotary power device connected to the turntable; The turntable has multiple vertically extending blade cylinders evenly distributed along its circumference. Each blade cylinder has a receiving cavity, and an elastic sleeve is fitted on the outside of the receiving cavity. The top and bottom ends of the elastic sleeve are integrally connected to the inner wall of the blade cylinder. The top of the blade barrel has a clearance hole for the blade handle to pass through, and the bottom of the blade barrel has a male connector; The rotary table has a filling / discharging station and a pressure relief station arranged sequentially along its rotation path; The filling and discharging station is equipped with a first female connector, which is connected to a liquid storage chamber via a hose. The liquid storage chamber stores rust inhibitor, and a liquid pump is installed on the hose. The liquid pump can rotate forward or in reverse. The pressure relief station is equipped with a second female connector, which is connected to the atmosphere. The first female connector and the second female connector are respectively connected to the first linear power device and the second linear power device; The top of the blade cylinder is provided with an exhaust port, and a valve is provided at the exhaust port. The valve is used to prevent outside air from entering the receiving cavity through the exhaust port. The blade barrel is provided with a vibration mechanism, which includes a swing arm, a striking element disposed on the swing arm, and a power component connected to the swing arm. The cutter cylinder includes a fixed cylinder and a movable cylinder that is slidably sleeved with the fixed cylinder. The movable cylinder is connected to a third spring, which causes the movable cylinder to tend to move closer to the fixed cylinder. The top end of the elastic sleeve is integrally connected to the inner wall of the moving cylinder, and the bottom end of the elastic sleeve is integrally connected to the inner wall of the fixed cylinder. The moving cylinder is provided with a mounting frame, and the swing arm is integrally connected to the mounting frame through a first spring piece; The power assembly includes a vertically extending ratchet that is integrally connected to the fixed cylinder, a ratchet pawl hinged to the swing arm, and a limiting part and a second spring plate provided on the swing arm; As the moving cylinder moves away from the stationary cylinder, the limiting part prevents the pawl from swinging downward; The second spring causes the pawl to tend to swing downwards.

2. The five-axis linkage composite machining center according to claim 1, characterized in that, The male connector includes a core tube that communicates with the receiving cavity. The end of the core tube facing away from the receiving cavity is a closed end. A through hole is provided on the side wall of the core tube. A valve ring that can open or close the through hole is slidably sleeved on the outside of the core tube. The valve ring is connected to a first spring at one end near the receiving cavity, and the first spring causes the valve ring to tend to close the through hole; Both the first female connector and the second female connector include a sleeve. The inner wall of the sleeve is provided with a limiting shoulder that can abut against the end of the valve ring opposite the receiving cavity. The inner wall of the sleeve and the outer wall of the core tube are in clearance fit.

3. A five-axis linkage composite machining center according to claim 1, characterized in that, The top of the cutter barrel is provided with a vertically extending sliding cavity that connects to the receiving cavity. A float is slidably connected inside the sliding cavity. The float is connected to a valve plate through a support rib. The float has a first position and a second position. When the float is in the first position, the valve plate closes the vent hole; When the float is in the second position, the valve plate opens the vent hole; The float tends 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, which gives the float a tendency to move toward a second position.

4. A five-axis linkage composite machining center according to claim 3, characterized in that, The sliding cavity has a locking hole on its side wall that connects to the clearance hole. A ball is movably connected in the locking hole. The tool holder has a locking groove that matches the ball. When the float is in the first position, the side wall of the float abuts against the ball bearing, and the ball bearing extends into the clearance hole; When the float is in the second position, the sidewall of the float disengages from the ball, and the ball can exit the clearance hole.

5. A five-axis linkage composite machining center according to claim 1, characterized in that, The top of the cutter barrel is provided with an elastic sealing ring.

Images