Precise multi-axis numerical control machine tool

Abstract

The invention relates to the technical field of precision machining, in particular to a precision multi-axis numerical control machine tool which comprises a machining center, a multi-axis numerical control machine tool body and a multi-axis numerical control machine tool body. The cradle mechanism is arranged in the machine tool and used for fixing and moving the workpiece, and the cradle mechanism comprises a cradle rotationally connected to the moving mechanism and a clamping assembly arranged on the cradle; the abrasive particle mechanism is arranged on the cradle mechanism and used for conducting surface abrasive particle flow treatment on the machined workpiece, and the abrasive particle mechanism comprises a heat dissipation assembly arranged on the cradle assembly, a separation assembly arranged on the heat dissipation assembly and a receiving assembly arranged above the clamping mechanism; after machining is completed, the receiving assembly moves downwards, the separating assembly moves upwards, and a closed space is formed in the inner surface of the workpiece for abrasive particle flow treatment. The technical problem that clamping deformation and inner surface treatment of the cartridge receiver are difficult is solved.

Description

Technical Field

[0001] The present invention relates to the field of precision machining technology, and in particular to a precision multi-axis CNC machine tool. Background Art

[0002] The casing is the primary load-bearing component of an aircraft engine, a key component for bearing and containing the engine's loads. It is a typical thin-walled structural part. Its primary functions are to protect the engine core and provide support for externally mounted engine components such as the fuel pump, oil pump, generator, gearbox, and piping. The interior primarily houses the stator and combustion chamber, which, together with the rotor assembly, form an air flow path. Casings are categorized by function into fan cases, outer cases, intermediate cases, compressor cases, and combustion chamber cases. Casings are primarily made of titanium alloys and high-temperature alloys, and the machining process requires careful control of high-precision geometric tolerances and minimal deformation during thin-wall machining.

[0003] However, in actual use, due to the structure of the receiver, its inner surface is not easy to be processed in various ways, and it is prone to deformation and surface damage, which affects the accuracy of the workpiece. Summary of the Invention

[0004] The purpose of the present invention is to address the shortcomings of the existing technology. By setting a cradle mechanism and an abrasive mechanism, the abrasive flow device is combined with the clamping device of the workpiece to avoid damage to the workpiece during the clamping process. At the same time, the abrasive flow process is directly performed for internal processing after the processing is completed, thereby solving the technical problems of casing clamping deformation and difficulty in inner surface treatment.

[0005] In response to the above technical problems, the technical solutions adopted are as follows: A precision multi-axis CNC machine tool, comprising: Machining center, which is equipped with a moving mechanism and a spindle; A cradle mechanism is provided within the machine tool and is used to secure and move the workpiece. The cradle mechanism includes a cradle rotatably connected to the moving mechanism and a clamping assembly provided on the cradle. The clamping assembly clamps and secures the workpiece from the inner and outer walls, and adjusts the workpiece angle through the cradle to cooperate with the machining operation of the machining center. The abrasive mechanism is arranged on the cradle mechanism and is used to perform surface abrasive flow treatment on the processed workpiece. The abrasive mechanism includes a heat dissipation component arranged on the cradle component, a partition component arranged on the heat dissipation component and a receiving component arranged above the clamping mechanism. After the processing is completed, the receiving component moves downward and the partition component moves upward to form a closed space on the inner surface of the workpiece for abrasive flow treatment.

[0006] Preferably, the clamping assembly includes an internal fixing part for clamping the inside of the workpiece, an external fixing part for clamping the outside of the workpiece and a flipping part for turning the workpiece, and the internal fixing part includes a rotating disk rotatably connected to the cradle, a sliding rail vertically slidably connected to the rotating disk, multiple fixed disks slidably connected to the sliding rails and assembled with each other, a moving block slidably connected to each group of fixed disks, a folding rod hinged at the upper part of the moving block, a pressure block arranged at the end of the folding rod, and an annular airbag arranged at the edge of the pressure block.

[0007] Preferably, the external fixing member includes multiple groups of sliding grooves above the outer side of the rotating disk, a notch ring slidably connected to the sliding groove and having a preset notch on one side, multiple groups of first telescopic rods horizontally slidably connected to the notch ring, and a contact block rotatably connected to the telescopic rod.

[0008] Preferably, one end of the contact block is an inflatable end and the other end is a reeling end, an arc-shaped airbag is provided between the inflatable end and the reeling end of adjacent contact blocks, one end of the arc-shaped airbag is connected to the air pump provided at the inflatable end, and the other end is wound around the rotating shaft of the reeling end, and a steering shaft is provided on the outside of the inflatable end and the reeling end; No arc-shaped airbag is provided at the position corresponding to the notch of the notch ring.

[0009] Preferably, the flipping member includes a lifting block vertically slidably connected to the cradle, a flipping plate rotatably connected to the lifting block, a second telescopic rod fixed at both ends of the flipping plate, a clamping block arranged at the end of the second telescopic rod, a plurality of suction cups fixed on the clamping block, and a plurality of rollers rotatably connected to the upper and lower surfaces of the clamping block on both sides of the rotating disk.

[0010] Preferably, the heat dissipation assembly includes an isolation cylinder vertically slidably connected to the center of the rotating disk, a fan arranged in the middle of the isolation cylinder, multiple groups of nozzles arranged around the fan, and multiple groups of wind guide plates rotatably connected to the upper end of the isolation cylinder.

[0011] Preferably, the partition assembly includes a grinding chamber rotatably connected to the isolation cylinder, a lower abrasive bin arranged below the grinding chamber, a sealing plate arranged at the edge of the grinding chamber, a mating groove arranged on the sealing plate, and a pop-up plate slidably connected to the inside of the sealing plate and located below the mating groove.

[0012] Preferably, the partition assembly also includes a flow guide member arranged in the grinding chamber and a drying member arranged on the isolation cylinder, the flow guide member includes a rocker arm rotatably connected to the side wall of the grinding chamber, multiple sets of spiral shafts rotatably connected to the middle of the rocker arm, a paddle plate rotatably connected to both sides of the rocker arm, a through hole arranged at the upper end of the paddle plate, and a baffle rotatably connected to the lower end of the through hole.

[0013] Preferably, the drying part includes a sliding bar vertically connected to the outside of the grinding chamber, multiple groups of No. 1 nozzles arranged on the sliding adjustment, a shrinking cylinder arranged at both ends of the rocker arm, an air pipe slidingly connected in the shrinking cylinder, and a No. 2 nozzle rotatably connected to the end of the air pipe.

[0014] As another preferred embodiment, the connecting component is fixed on the main shaft of the machining center and includes a cover plate vertically slidably connected to the main shaft, a sealing ring rotatably connected to the cover plate, an upper abrasive bin arranged on the sealing ring, and an air ring arranged around the sealing ring.

[0015] Beneficial effects of the present invention: (1) In the present invention, an internal fixing member is provided and an inflatable airbag is used as an intermediate medium for the contact between the clamp and the workpiece surface. When the airbag is filled with air and contacts the workpiece surface, on the one hand, the soft property of the airbag is avoided to scratch the surface of the workpiece. On the other hand, the airbag filled with air is not easy to deform significantly, and the workpiece can be clamped stably. The clamping position of the workpiece is located in the middle of the workpiece, which can effectively support the center of gravity of the workpiece and avoid bending deformation due to its own gravity when the workpiece is tilted; (2) In the present invention, an external fixing member is provided and a plurality of arc-shaped air bags are used to clamp the workpiece from the outside to achieve fixation of the workpiece. On the one hand, the fastening effect is ensured. On the other hand, this tightening method is used to disperse the force exerted by the fixture on the workpiece to the contact surface of the entire air bag, thereby avoiding deformation such as dents that may be caused by multi-point clamping. (3) The present invention combines the abrasive mechanism with the workpiece fixture through the abrasive mechanism, thereby reducing the number of clamping times, improving the processing efficiency of the workpiece, and increasing the processing range of the machine tool. Specifically, for the development of the abrasive flow process in the workpiece, a slow rotation and local grinding method is adopted. On the one hand, the amount of abrasive can be reduced, making the grinding more refined. On the other hand, multiple grinding chambers can be set up as needed, filled with different abrasives to achieve different grinding effects, thereby increasing practicality. In summary, the equipment has the advantages of wide processing range, high production efficiency, small footprint and easy use, and is particularly suitable for the field of casing processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 describing 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 work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a precision multi-axis CNC machine tool.

[0018] Figure 2 This is a schematic diagram of the internal structure of a precision multi-axis CNC machine tool.

[0019] Figure 3 It is a structural diagram of the internal fixing parts.

[0020] Figure 4 Schematic diagram of the structure of the external fixing part.

[0021] Figure 5 Schematic diagram of the relevant structure of the arc-shaped airbag.

[0022] Figure 6 Schematic diagram of the transmission operation of the flip part.

[0023] Figure 7 Schematic diagram of the processing status of the workpiece.

[0024] Figure 8 Schematic diagram of the structure of the heat dissipation component.

[0025] Figure 9 Schematic diagram of the relevant structure of the grinding room.

[0026] Figure 10 Schematic diagram of the relevant structure of the drying parts.

[0027] Figure 11 for Figure 10 A magnified schematic diagram of the structure.

[0028] Figure 12 Schematic diagram of the working status of the guide piece.

[0029] Figure 13 It is a structural diagram of the corresponding components. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1 like Figure 1 、 Figure 2 As shown, a precision multi-axis CNC machine tool comprises: Machining center 0, which is equipped with a moving mechanism and a spindle; A cradle mechanism 1 is provided within the machine tool and is used to secure and move a workpiece. The cradle mechanism 1 includes a cradle 11 rotatably connected to the moving mechanism and a clamping assembly 12 provided on the cradle 11. The clamping assembly 12 clamps and secures the workpiece from the inner and outer walls, and adjusts the workpiece angle through the cradle 11 to cooperate with the machining operation of the machining center 0. The abrasive mechanism 2 is arranged on the cradle mechanism 1 and is used to perform surface abrasive flow treatment on the processed workpiece. The abrasive mechanism 2 includes a heat dissipation component 21 arranged on the cradle 11 component, a partition component 22 arranged on the heat dissipation component 21 and a receiving component 23 arranged above the clamping mechanism. After the processing is completed, the receiving component 23 moves downward and the partition component 22 moves upward to form a closed space on the inner surface of the workpiece for abrasive flow treatment.

[0032] In this embodiment, by setting up a cradle mechanism 1 and an abrasive mechanism 2, the abrasive flow process is integrated into the production process for continuous processing, and the abrasive flow related equipment is combined with the tooling fixture to avoid deformation of the workpiece caused by the fixture during the clamping process.

[0033] In detail, during the processing of the receiver workpiece, the workpiece needs to be fixed by a fixture. Since the workpiece is a thin-walled structure, it is very easy for the workpiece to be deformed due to the clamping force during the clamping process. In addition, as a precision workpiece, the receiver has high requirements for surface treatment, and the fixture is also easy to scratch the surface of the workpiece during the clamping process.

[0034] At the same time, with regard to the surface treatment of the inner surface of the workpiece, due to its special structure, it is not easy to perform deburring, polishing and other processing processes. Based on this, this application adopts an abrasive flow process to treat the inner surface.

[0035] Abrasive flow refers to a polishing and deburring process, also known as fluid polishing or extrusion grinding polishing. It is primarily targeted at internal holes, micropores, irregular shapes, spherical surfaces, gears, and other surfaces. It is known for its high efficiency, thorough polishing and deburring, and workpiece-safety. Simply put, it involves polishing and deburring using a semi-fluid medium, primarily for internal holes and small to medium-sized irregularly shaped workpieces. This process is suitable for surface treatment of workpiece interior surfaces. To minimize the risk of deformation caused by multiple workpiece clamping, the abrasive mechanism 2 is integrated into the cradle 11 architecture, enabling both graphic and abrasive processing.

[0036] In addition to the workpiece deformation caused by workpiece clamping, heat will be generated during workpiece processing and internal grinding of the abrasive flow. Inconsistent temperatures in different parts of the workpiece will also cause workpiece deformation.

[0037] It should be noted that the device combines the abrasive flow mechanism with the clamping mechanism and adds it to the machining center 0, thereby expanding the machining range of the machining center 0. After the workpiece is clamped and processed, the abrasive flow processing can be directly performed, reducing the flow between multiple devices and improving efficiency.

[0038] It is worth mentioning that the machining center 0 itself has the ability to process the workpiece, such as milling, drilling, boring, etc., and perform turning processing on the workpiece. A moving mechanism and a spindle are set in the machining center 0. The spindle processes the workpiece, and the moving mechanism controls the movement of the workpiece in the horizontal plane. The cradle mechanism 1 is set on the moving mechanism.

[0039] Further, if Figure 3 、 Figure 7 As shown, the clamping assembly 12 includes an internal fixing part 121 for clamping the inside of the workpiece, an external fixing part 122 for clamping the outside of the workpiece and a flipping part 123 for turning the workpiece, and the internal fixing part 121 includes a rotating disk 1211 rotatably connected to the cradle 11, a sliding rail 1212 vertically slidably connected to the rotating disk 1211, a plurality of fixed disks 1213 slidably connected to the sliding rail 1212 and assembled with each other, a moving block 1214 slidably connected to each group of fixed disks 1213, a folding rod 1215 hinged at the upper part of the moving block 1214, a pressure block 1216 arranged at the end of the folding rod 1215, and an annular air bag 1217 arranged at the edge of the pressure block 1216.

[0040] In this embodiment, by setting an internal fixing part 121 and an external fixing part 122, airbags are used to achieve multi-point fixation of the inner and outer surfaces of the workpiece, wherein the internal fixing part 121 is provided with a folding rod 1215 that can be folded and swung, thereby adapting to the hiccup structure of the workpiece and achieving a stable fixing effect.

[0041] In detail, the fixed plate 1213 slides on the sliding rail 1212 to form a complete ring, and the workpiece is placed on the fixed plate 1213. At this time, the moving block 1214 is located inside the workpiece, and the folding rod 1215 on the moving block 1214 is unfolded to make the pressure block 1216 fit the inner surface of the workpiece, and the annular airbag 1217 is inflated to fit the inner surface of the workpiece to fix the workpiece.

[0042] It should be noted that due to the high temperature of the workpiece surface during processing, the annular airbag 1217 uses a high-temperature airbag. The annular airbag 1217 can be provided with a protective layer to protect the airbag. The airbag contacts the inner surface of the workpiece. The soft airbag can avoid scratching the inner surface of the workpiece. At the same time, the inflation of the airbag can also achieve stable fixation of the workpiece.

[0043] It is worth mentioning that a sliding groove is provided on the fixed plate 1213, and the sliding block slides on the sliding groove. When the folding rod 1215 is unfolded, the inner wall of the workpiece can be supported. When the folding rod 1215 is folded, the pressure block 1216 and other structures can be sunk into the sliding groove and slide along with the sliding block.

[0044] Further, if Figure 4 、 Figure 5 、 Figure 7As shown, one end of the contact block 1224 is an inflatable end 1225, and the other end is a reeling end 1226. An arc-shaped airbag 1227 is provided between the inflatable end 1225 and the reeling end 1226 of adjacent contact blocks 1224. The arc-shaped airbag 1227 is connected to the air pump 1228 provided at the inflatable end 1225 in one circle, and the other end is wound around the rotating shaft 1229 of the reeling end 1226. A steering shaft 1230 is provided on the outside of each of the inflatable end 1225 and the reeling end 1226. The arc-shaped airbag 1227 is not provided at the position corresponding to the notch of the notch ring 1222.

[0045] In this embodiment, the external fixing member 122 is provided and a plurality of arc-shaped air bags 1227 are used to clamp the workpiece from the outside of the workpiece, and the internal fixing member 121 is cooperated to achieve stable clamping of the workpiece.

[0046] In detail, after the workpiece is fixed inside, the first telescopic rod 1223 extends and the contact block 1224 approaches the workpiece. At this time, the winding end 1226 tightens the arc-shaped airbag 1227, and the inflation end 1225 inflates the arc-shaped airbag 1227, causing the arc-shaped airbag 1227 to expand and tightly clamp the outer surface of the workpiece, thereby fixing the outside of the workpiece.

[0047] It should be noted that in the prior art, the workpiece is often fixed by multi-point clamping on one end of the workpiece. Since the workpiece in this application is a thin-walled structure, multi-point clamping is used, and the clamping force is concentrated on the contact surface between the clamp and the workpiece, which can easily cause deformation. Based on this, the external fixing member 122 adopts multiple arc-shaped air bags 1227. Through the fastening of multiple arc-shaped air bags 1227, the workpiece is fixed, the contact area is increased, and the workpiece is avoided from being scratched and deformed. At the same time, when one end of the workpiece is fixed, if the workpiece needs to be processed laterally, the outer end of the workpiece will also cause certain deformation due to its own gravity and temperature. The use of the arc-shaped air bag 1227 to clamp the middle position of the workpiece and the internal and external fixing members 122 can avoid this deformation.

[0048] It is worth mentioning that the notch ring 1222 is rotatably connected to the slide groove 1221. Notches are set on each mountain of the notch ring 1222. When the workpiece needs to be processed laterally, the notch rotates to the side that needs to be processed, thereby facilitating the processing of the main shaft without causing interference.

[0049] Since the workpiece needs to be flipped during the process, and the workpiece is trumpet-shaped with different diameters at both ends, the length of the arc-shaped airbag 1227 can be effectively controlled by the telescopic rod and the winding shaft to adapt to the diameter of the workpiece. Correspondingly, the internal fixing part 121 controls the rotation angle of the folding rod 1215 to make the pressure block 1216 adapt to the flipping of the workpiece and fix the workpiece.

[0050] Further, if Figure 6As shown, the flip member 123 is on both sides of the rotating disk 1211, including a lifting block 1231 vertically slidably connected to the cradle 11, a flip plate 1232 rotatably connected to the lifting block 1231, a second telescopic rod 1233 fixed at both ends of the flip plate 1232, a clamping block 1234 arranged at the end of the second telescopic rod 1233, a plurality of suction cups 1235 fixed on the clamping block 1234, and a plurality of rollers 1236 rotatably connected to the upper and lower surfaces of the clamping block 1234.

[0051] In this embodiment, the turning member 123 is provided to realize the up and down rotation of the two ends of the workpiece, thereby adapting to different processing parts of the workpiece.

[0052] In detail, the second telescopic rod 1233 is extended, so that the suction cup 1235 sucks the surface of the workpiece, the lifting block 1231 rises, and the flip plate 1232 rotates to realize the flipping of the upper and lower ends of the workpiece, the internal fixing member 121 and the external fixing member 122 are re-clamped, and the lower end roller 1236 of the home blower contacts the upper end of the workpiece at this time.

[0053] It should be noted that due to the processing needs of the workpiece, the position of the workpiece needs to be turned when processing both ends of the workpiece. Here, a suction cup 1235 is used to clamp the workpiece, and the suction cup 1235 is fixed to the clamping block 1234 through an elastic part to ensure that the clamping process is stable and will not fall, thereby avoiding scratches on the workpiece and causing deformation.

[0054] When processing the workpiece, first put the large opening upwards, then flip it over and put the small opening upwards. After processing is completed, abrasive flow treatment can be carried out directly to improve efficiency.

[0055] It is worth mentioning that since the airbags of the internal fixing member 121 and the external fixing member 122 have a certain elasticity, they may cause vibration of the workpiece during the processing, resulting in inaccurate positioning. Therefore, a clamping block 1234 is provided. When the flipping is completed, the clamping block 1234 presses the upper end of the workpiece and uses the downward pressure to stabilize the workpiece, thereby compensating for the possible vibration of the internal and external fixing members 122.

[0056] Further, if Figure 8 As shown, the heat dissipation assembly 21 includes an isolation cylinder 211 vertically slidably connected to the center of the rotating disk 1211, a fan 212 arranged in the middle of the isolation cylinder 211, multiple groups of nozzles 213 arranged around the fan 212, and multiple groups of wind guide plates 214 rotatably connected to the upper end of the isolation cylinder 211.

[0057] In this embodiment, by providing a fan 212 and an air guide plate 214, the cutting fluid is sprayed onto the workpiece in the form of droplets, and the cutting fluid and wind force are combined to achieve rapid cooling of the workpiece, thereby ensuring that the temperature of the workpiece is consistent throughout the processing process.

[0058] In detail, the fan 212 blows air upward, and at the same time, the droplets spray out water mist. The direction of the water mist is controlled by the wind guide plate 214, which can accurately control the excess water mist to flow to the part being processed, thereby achieving rapid cooling and ensuring consistent temperature at other locations.

[0059] Spraying water onto the surface of the workpiece can form a water film between the annular airbag 1217 and the arc-shaped airbag 1227 and the workpiece, thereby reducing the possibility of damage to the airbag.

[0060] Further, if Figure 7 、 Figure 9 As shown, the partition assembly 22 includes a grinding chamber 221 rotatably connected to the isolation cylinder 211, a lower abrasive bin 222 arranged below the grinding chamber 221, a sealing plate 223 arranged at the edge of the grinding chamber 221, a matching groove 224 arranged on the sealing plate 223, and a pop-up plate 225 slidably connected to the inside of the sealing plate 223 and located under the matching groove 224.

[0061] In this embodiment, a processing cavity for abrasive flow is formed by providing the grinding chamber 221 and the sealing plate 223 .

[0062] In detail, after the isolation cylinder 211 rises, the sealing plate 223 on the side wall of the grinding chamber 221 pops out and contacts the inner surface of the workpiece. At the same time, due to the presence of the mounting ring inside the workpiece, a matching groove 224 is set on the sealing plate 223, and the pop-up plate 225 continues to pop out to seal the inside of the mounting ring. A lower abrasive bin 222 is set below the grinding chamber 221, and the abrasive enters the grinding chamber 221 from the lower abrasive bin 222. At this time, the outside of the grinding chamber 221 is the inner surface of the workpiece, and the abrasive particles process the inner surface of the workpiece. At the same time, the grinding chamber 221 continues to rotate to completely grind the inner surface of the workpiece.

[0063] The shape of the grinding chamber 221 is set to fit the workpiece, and is a trumpet shape with a narrow upper part and a block lower part, which facilitates the flow of subsequent abrasives. At the same time, when the grinding cylinder rises, the fixed plate 1213 moves outward along the sliding rail, and the folding rod 1215 folds and sinks into the sliding groove to move the workpiece out to avoid interference with the isolation cylinder 211.

[0064] It should be noted that, by rotating the grinding chamber 221, a portion of the workpiece can be processed, and complete processing is achieved with the rotation. By adopting this method, on the one hand, the demand for abrasives is reduced, and on the other hand, the fluidity of the abrasives can be increased. Due to the presence of the mounting ring in the workpiece, the abrasives are prompted to flow in the mounting ring through rotation, which assists grinding and improves the fineness of grinding.

[0065] It is worth mentioning that multiple grinding chambers 221 can be provided according to needs, and different abrasives can be used to achieve different processing effects.

[0066] Further, if Figure 10 、 Figure 11 、 Figure 12 As shown, the partition assembly 22 also includes a guide member 226 arranged in the grinding chamber 221 and a drying member 227 arranged on the isolation cylinder 211, the guide member 226 includes a rocker 2261 rotatably connected to the side wall of the grinding chamber 221, multiple groups of spiral shafts 2262 rotatably connected to the middle of the rocker 2261, a dial plate 2263 rotatably connected to both sides of the rocker 2261, a through hole 2264 arranged at the upper end of the dial plate 2263, and a baffle 2265 rotatably connected to the lower end of the through hole 2264.

[0067] In this embodiment, the spiral shaft 2262 and the paddle 2263 are used to enable the abrasive to flow within the mounting ring, thereby preventing the mounting ring from obstructing the flow of the abrasive and preventing the abrasive from being able to thoroughly grind and polish the inside of the mounting ring.

[0068] In detail, after the abrasive enters the grinding chamber 221, the rocker arm 2261 swings, rotating the rocker arm 2261 to the bottom of the workpiece mounting ring, and the spiral shaft 2262 rotates to fill the abrasive into the mounting ring. The paddles 2263 on both sides fluctuate back and forth. When the paddles 2263 are pushed outward, the abrasive is dug out of the mounting ring. When the paddles 2263 are pushed inward, the through hole 2264 and the baffle 2265 are opened, allowing the abrasive to pass through and move to the two ends of the mounting ring.

[0069] It should be noted that, through the spiral shaft 2262 and the paddle 2263, the abrasive can enter the mounting ring from the middle of the mounting ring, and then move to both ends through the spiral shaft 2262, and move out from both ends through the paddle 2263, thereby realizing the movement of the abrasive in the mounting ring, thereby avoiding the abrasive being unable to flow in the mounting ring, causing grinding dead corners.

[0070] Further, if Figure 10 、 Figure 11 As shown, the drying part 227 includes a sliding bar 2271 vertically slidably connected to the outside of the polishing chamber 221, multiple groups of No. 1 nozzles 2272 arranged on the sliding bar 2271, a shrinking tube 2273 arranged at both ends of the rocker 2261, an air pipe 2274 slidably connected in the shrinking tube 2273, and a No. 2 nozzle 2275 rotatably connected to the end of the air pipe 2274.

[0071] In this embodiment, a drying unit 227 is provided to process the inner surface of the workpiece before abrasive treatment.

[0072] In detail, after the isolation cylinder 211 rises, the sliding bar 2271 slides up and down on the isolation cylinder 211, and the No. 1 jet port thereon is used to blow dry the water stains on the inner surface. The air pipes 2274 at both ends of the rocker arm 2261 extend from the contraction cylinder 2273, and multiple No. 2 jet ports 2275 are set at the end of the air pipe 2274. The rotation of the No. 2 jet port 2275 is used to quickly dry the water stains on the inner surface of the isolation chamber.

[0073] It should be noted that after polishing in the polishing chamber 221 , the air pipe 2274 is retracted into the shrinking tube 2273 to prevent the air pipe 2274 from being damaged by the abrasive.

[0074] Further, if Figure 13 As shown, the connecting component 23 is fixed on the main shaft of the machining center 0 and includes a cover plate 231 vertically slidably connected to the main shaft, a sealing ring 232 rotatably connected to the cover plate 231, an upper abrasive bin 233 arranged on the sealing ring 232, and an air ring 234 arranged around the sealing ring 232.

[0075] In this embodiment, the sealing ring 232 and the upper abrasive bin 233 are provided to seal the upper portion of the grinding chamber 221 , thereby forming a complete closed space for the flow of abrasive.

[0076] In detail, after the isolation cylinder 211 rises, the moving mechanism moves the cradle mechanism 1 to the bottom of the receiving assembly 23, and the cover plate 231 moves down and contacts the top of the isolation cylinder 211. At the same time, the sealing ring 232 contacts the grinding chamber 221, and the sealing ring 232 also rotates with the grinding chamber 221. The upper abrasive bin 233 and the lower abrasive bin 222 cooperate to perform flow grinding of the abrasive.

[0077] It should be noted that an air ring 234 is provided on the outside of the sealing ring 232, which cooperates with the fan 212 inside the isolation tube 211 to quickly cool the workpiece. Since the grinding chamber 221 rotates and the workpiece is partially ground at the same time, the temperature of the grinding position is higher than that of other positions. Therefore, the air ring 234 is provided at the same time to quickly dissipate the heat at this position to avoid deformation of the workpiece caused by heat.

[0078] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0079] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0080] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art based on the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A precision multi-axis CNC machine tool, characterized in that: include: Machining center (0), the machining center (0) has a moving mechanism and a spindle; A cradle mechanism (1), the cradle mechanism (1) being arranged in a machine tool and used for fixing and moving a workpiece, the cradle mechanism (1) comprising a cradle (11) rotatably connected to a moving mechanism and a clamping assembly (12) arranged on the cradle (11), the clamping assembly (12) clamping and fixing the workpiece from inner and outer walls, and adjusting the angle of the workpiece through the cradle (11) to cooperate with the machining operation of the machining center (0); An abrasive mechanism (2) is provided on a cradle mechanism (1) and is used for performing abrasive flow treatment on the surface of a workpiece after machining. The abrasive mechanism (2) comprises a heat dissipation component (21) provided on a cradle (11) component, a separation component (22) provided on the heat dissipation component (21), and a receiving component (23) provided above a clamping mechanism. After machining is completed, the receiving component (23) moves downward and the separation component (22) moves upward, so that a closed space is formed on the inner surface of the workpiece for abrasive flow treatment.

2. A precision multi-axis CNC machine tool according to claim 1, characterized in that: The clamping assembly (12) includes an internal fixing member (121) for clamping the inside of the workpiece, an external fixing member (122) for clamping the outside of the workpiece, and a flipping member (123) for turning the workpiece. The internal fixing member (121) includes a rotating disk (1211) rotatably connected to the cradle (11), a sliding rail (1212) vertically slidably connected to the rotating disk (1211), a plurality of fixed disks (1213) slidably connected to the sliding rail (1212) and assembled with each other, a moving block (1214) slidably connected to each group of fixed disks (1213), a folding rod (1215) hinged to the upper part of the moving block (1214), a pressing block (1216) arranged at the end of the folding rod (1215), and an annular air bag (1217) arranged at the edge of the pressing block (1216).

3. A precision multi-axis CNC machine tool according to claim 2, characterized in that: The external fixing member (122) comprises a plurality of groups of sliding grooves (1221) above the outer side of the rotating disk (1211), a notch ring (1222) slidably connected to the sliding groove (1221) and having a pre-set notch on one side, a plurality of groups of first telescopic rods (1223) horizontally slidably connected to the notch ring (1222), and a contact block (1224) rotatably connected to the telescopic rod.

4. A precision multi-axis CNC machine tool according to claim 3, characterized in that: One end of the contact block (1224) is an inflation end (1225), and the other end is a reeling end (1226); an arc-shaped airbag (1227) is provided between the inflation end (1225) and the reeling end (1226) of the adjacent contact block (1224); the arc-shaped airbag (1227) is connected to an air pump (1228) provided at the inflation end (1225) through one circle, and the other end is wound around a rotating shaft (1229) of the reeling end (1226); and a steering shaft (1230) is provided on the outside of each of the inflation end (1225) and the reeling end (1226); The arc-shaped airbag (1227) is not provided at a position corresponding to the notch of the notch ring (1222).

5. A precision multi-axis CNC machine tool according to claim 2, characterized in that: The flip member (123) is located on both sides of the rotating disk (1211), and includes a lifting block (1231) vertically slidably connected to the cradle (11), a flip plate (1232) rotatably connected to the lifting block (1231), a second telescopic rod (1233) fixed at both ends of the flip plate (1232), a clamping block (1234) arranged at the end of the second telescopic rod (1233), a plurality of suction cups (1235) fixed on the clamping block (1234), and a plurality of rollers (1236) rotatably connected to the upper and lower surfaces of the clamping block (1234).

6. A precision multi-axis CNC machine tool according to claim 1, characterized in that: The heat dissipation assembly (21) comprises an isolation cylinder (211) vertically slidably connected to the center of the rotating disk (1211), a fan (212) arranged in the middle of the isolation cylinder (211), multiple groups of nozzles (213) arranged around the fan (212), and multiple groups of air guide plates (214) rotatably connected to the upper end of the isolation cylinder (211).

7. The precision multi-axis CNC machine tool according to claim 1, characterized in that: The separation assembly (22) comprises a grinding chamber (221) rotatably connected to the isolation cylinder (211), a lower abrasive bin (222) arranged below the grinding chamber (221), a sealing plate (223) arranged at the edge of the grinding chamber (221), a matching groove (224) arranged on the sealing plate (223), and a pop-up plate (225) slidably connected to the inside of the sealing plate (223) and located below the matching groove (224).

8. The precision multi-axis CNC machine tool according to claim 7, characterized in that: The partition assembly (22) further comprises a flow guide (226) arranged in the grinding chamber (221) and a drying member (227) arranged on the isolation cylinder (211), wherein the flow guide (226) comprises a swing rod (2261) rotatably connected to the side wall of the grinding chamber (221), a plurality of sets of spiral shafts (2262) rotatably connected to the middle of the swing rod (2261), a paddle (2263) rotatably connected to both sides of the swing rod (2261), a through hole (2264) arranged at the upper end of the paddle (2263), and a baffle (2265) rotatably connected to the lower end of the through hole (2264).

9. The precision multi-axis CNC machine tool according to claim 8, characterized in that: The drying member (227) comprises a sliding bar (2271) vertically slidably connected to the outside of the polishing chamber (221), a plurality of groups of No. 1 air jet heads (2272) arranged on the sliding bar, a shrinking tube (2273) arranged at both ends of the swing rod (2261), an air pipe (2274) slidably connected to the inside of the shrinking tube (2273), and a No. 2 air jet port (2275) rotatably connected to the end of the air pipe (2274).

10. The precision multi-axis CNC machine tool according to claim 1, characterized in that: The receiving assembly (23) is fixed on the main shaft of the machining center (0) and includes a cover plate (231) vertically slidably connected to the main shaft, a sealing ring (232) rotatably connected to the cover plate (231), an upper abrasive bin (233) arranged on the sealing ring (232), and an air ring (234) arranged around the sealing ring (232).

Images