Aerospace part spinning blank machining device and method of use

Abstract

The application discloses an aviation part spinning blank machining device and a use method, and particularly relates to the technical field of part machining, which comprises a base, a linear guide rail is fixedly installed at the top end of the base, a base is fixedly installed at the moving end of the linear guide rail, an inner supporting mechanism is fixedly installed at the top end of the base, an auxiliary supporting mechanism is arranged at one end of the inner supporting mechanism, an outer positioning mechanism is arranged on one side of the top end of the base close to the auxiliary supporting mechanism, and a spinning device is arranged at one end of the top end of the base close to the auxiliary supporting mechanism. The inner supporting mechanism is arranged to support the spinning blank from the inside, so that the spinning processing quality and efficiency of the spinning blank are improved, the spinning blank can be directly controlled to move for outside turning processing, and deformation from the outside to the inside of the spinning blank during outside turning processing is prevented.

Description

Technical Field

[0001] This invention relates to the field of parts processing technology, specifically to a machining device and method for machining aerospace parts spinning blanks. Background Technology

[0002] Spinned aerospace parts are specialized aerospace components manufactured using spinning technology. In the aerospace manufacturing field, spun blanks are widely used in key components such as engine casings, fuel lines, and irregularly shaped cabins due to their advantages such as high forming efficiency and good structural integrity. However, since aerospace components have extremely high requirements for precision, strength, and reliability, the machining quality of spun blanks, as commonly used basic components in the aerospace field, directly affects the performance of the final product.

[0003] Among them, the aircraft fairing is a typical thin-walled structural part, which is usually processed by spinning. When the spun blank of the aircraft fairing is being machined, it needs to be clamped and transported back and forth and turned inside and outside. Since the thin wall is easily deformed, it will affect the overall processing quality of the aircraft parts. To this end, we propose a machining device and method for spun blanks of aircraft parts to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a machining apparatus and method for processing spun blanks of aerospace parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a machining device for spinning blanks of aerospace parts, comprising a base, a linear guide rail fixedly installed at the top of the base, a base fixedly installed at the moving end of the linear guide rail, an inner support mechanism fixedly installed at the top of the base, an auxiliary support mechanism at one end of the inner support mechanism, an outer fixing mechanism at the top of the base near the auxiliary support mechanism, and a spinning device at the top of the base near the auxiliary support mechanism.

[0006] As a preferred embodiment of the present invention, the internal support mechanism includes a longitudinal support bracket, which is fixedly installed at the top of the base. A rotating central cylinder is rotatably installed on the top of the longitudinal support bracket. A plurality of transverse sliding brackets arranged in a circular array are slidably mounted on one side of the rotating central cylinder. An internal support module is fixedly installed at the outer end of each transverse sliding bracket by bolts. The plurality of internal support modules are combined to form a complete internal support mold. A drive slide cylinder is fixedly installed at the inner end of the plurality of transverse sliding brackets. A first telescopic cylinder is fixedly installed in the rotating central cylinder. The drive end of the first telescopic cylinder extends into the drive slide cylinder and is fixedly installed on the inner wall of the drive slide cylinder.

[0007] As a preferred embodiment of the present invention, the inner support mechanism further includes an inner sliding frame, which is slidably engaged in the rotating cylinder. A second telescopic cylinder is fixedly installed on the side of the rotating cylinder away from the first telescopic cylinder. The driving end of the second telescopic cylinder is fixedly installed in the middle of the inner sliding frame. A mounting base is provided at the bottom of the inner sliding frame. A longitudinal sliding rod is vertically slidably installed in the inner sliding frame. The longitudinal sliding rod is fixedly installed at the top of the mounting base. A lifting cylinder is fixedly installed in the inner sliding frame. The driving end of the lifting cylinder is fixedly installed at the top of the mounting base. A mounting frame is fixedly installed on the inner side of the mounting base. An inner cutting head is fixedly installed at the bottom of the mounting frame.

[0008] As a preferred embodiment of the present invention, the inner wall ends of the two inner support modules at the bottom position are provided with storage grooves corresponding to the positions of the inner cutting heads.

[0009] As a preferred embodiment of the present invention, a liquid guide tube is fixedly mounted on the side of the mounting frame. The bottom end of the liquid guide tube extends out of the bottom end of the mounting frame and is fixedly mounted with a nozzle. A telescopic longitudinal tube is fixedly mounted on the top end of the liquid guide tube. A connecting clamp tube is fixedly mounted in the rotating cylinder. The telescopic longitudinal tube is slidably engaged in the connecting clamp tube. A first sealing ring is fixedly mounted on the top of the telescopic longitudinal tube. The first sealing ring is in contact with the inner wall of the connecting clamp tube. A telescopic sleeve is fixedly mounted on the side of the rotating cylinder near the second telescopic cylinder. The end of the connecting clamp tube away from the telescopic longitudinal tube is slidably engaged in the telescopic sleeve. A second sealing ring is fixedly mounted on the end of the connecting clamp tube away from the telescopic longitudinal tube. The second sealing ring is in contact with the inner wall of the telescopic sleeve.

[0010] As a preferred embodiment of the present invention, fasteners are detachably installed on the outer wall of the rotating cylinder near the second telescopic cylinder.

[0011] As a preferred embodiment of the present invention, a first gear is fixedly installed at the end of the rotating cylinder away from the fastener, a second gear is meshed with the bottom of the first gear, a drive shaft is fixedly installed in the middle of the second gear, the drive shaft is rotatably mounted on the longitudinal support bracket, a first motor is fixedly installed on the side of the longitudinal support bracket close to the drive shaft, and the drive end of the first motor and the shaft end of the drive shaft are fixedly installed.

[0012] As a preferred embodiment of the present invention, the auxiliary support mechanism includes an auxiliary support longitudinal frame, which is fixedly installed at the top of the base. A flipping shaft is rotatably installed at the top of the auxiliary support longitudinal frame. An auxiliary support bracket is fixedly installed at one end of the flipping shaft. An auxiliary support groove is formed at one end of the auxiliary support bracket. A ball bearing is rolled and engaged inside the auxiliary support groove. The end of the rotating cylinder near the second telescopic cylinder is movably engaged in the auxiliary support groove and in contact with the ball bearing. A worm gear is fixedly installed at the end of the flipping shaft away from the auxiliary support bracket. A worm is meshed with the outer side of the worm gear. The worm is rotatably installed on the outer side of the auxiliary support longitudinal frame. A second motor is fixedly installed on the outer wall of the auxiliary support longitudinal frame near the worm. The drive end of the second motor and the bottom end of the worm are fixedly installed.

[0013] As a preferred embodiment of the present invention, the external fixing mechanism includes a mechanism support, which is fixedly installed on the top of the base. A translation guide rod is slidably mounted on the top of the mechanism support. A connecting crossbar is fixedly mounted on one end of the translation guide rod. A third telescopic cylinder is fixedly mounted on the top of the mechanism support. The drive end of the third telescopic cylinder is fixedly mounted to the connecting crossbar. Rotating side frames are vertically mounted on both ends of the connecting crossbar. Two symmetrically distributed rotating seats are movably mounted on each rotating side frame. A rotating shaft is fixedly mounted on each end of the rotating seat. The rotating shaft is rotatably mounted on the rotating side frame. A transmission gear is fixedly mounted on each rotating shaft, and the two transmission gears mesh with each other. A co-drive shaft is fixedly mounted between the two rotating shafts at the bottom position. A third motor is fixedly installed on the top of the rotating side frame. The drive end of the third motor and the shaft end of the corresponding rotating shaft are fixedly installed. A rotating half-frame is fixedly installed at the end of the rotating seat. An outer fixed half-frame is provided on the inner side of each of the two horizontally corresponding rotating half-frames. A half-clamping ring is fixedly installed on the outer wall of the outer fixed half-frame near the rotating half-frame. The half-clamping ring is slidably engaged in the corresponding rotating half-frame. A half-tooth ring is fixedly installed in the middle of the outer side of the half-clamping ring. A drive gear is provided in the middle of each rotating half-frame. The drive gear and the half-tooth ring are meshed. A control shaft is fixedly installed in the middle of the drive gear. The control shaft is rotatably mounted on the rotating half-frame. A fourth motor is fixedly installed on the rotating half-frame near the control shaft. The drive end of the fourth motor and the shaft end of the control shaft are fixedly installed.

[0014] A method for using a machining device for spinning blanks of aerospace parts includes the following steps:

[0015] Step 1: During the spinning process, first activate the second telescopic cylinder to retract and control the inner slide frame, mounting base, and inner cutting head to move to one side of the spinning equipment, so that the inner cutting head is moved to the middle position of the longitudinal support bracket. Then, activate the first telescopic cylinder to extend and control the drive slide cylinder and multiple transverse slide brackets to move to one side of the spinning equipment, so that the inner support mold is moved to the middle position of the longitudinal support bracket. At this time, the inner cutting head is stored in the storage slot.

[0016] Subsequently, the aerospace component spinning blank is placed on the outside of the rotating cylinder from one end and placed at the end of the inner support mold. Fasteners are then installed for limiting and fixing. Then, the second motor is turned on to drive the worm gear to rotate the worm wheel and the flipping shaft, thereby controlling the rotation of the auxiliary support bracket. This causes the end of the rotating cylinder near the second telescopic cylinder to be movably engaged in the auxiliary support groove and in contact with the ball bearings. The auxiliary support bracket provides auxiliary support for the rotating cylinder.

[0017] Subsequently, the linear guide rail is activated to move the aerospace component spinning blank to the spinning equipment for spinning. During the spinning process, the first motor is activated to drive the drive shaft and the second gear to rotate, thereby driving the first gear and the rotating cylinder to rotate at high speed, thus controlling the high-speed rotation of the aerospace component spinning blank to produce a spinning blank. Due to the setting of the inner support mold, during spinning, the inner wall of the spinning blank is tightly attached to the inner support mold, and the inner support mold provides internal support for the spinning blank.

[0018] Step 2: After spinning is completed, the spun blank is removed from the spinning equipment and moved to the position of the outer fixed mechanism for turning the outer side of the spun blank. At the same time as turning, the rotating cylinder is controlled to rotate at high speed, which drives the spun blank to rotate at high speed. Because an inner support mold is set, the spun blank is internally supported to prevent deformation from the outside to the inside when the outer side of the spun blank is turned.

[0019] Step 3: With the two outer fixed half frames in the open state, the two outer fixed half frames are moved to the side of the spun blank by opening the third telescopic cylinder, so that the spun blank is moved between the two outer fixed half frames. Then, the third motor is turned on to drive the corresponding rotating shaft and rotating seat to rotate. With the transmission of the same drive shaft and the meshing connection of the two transmission gears, the corresponding two sets of rotating seats and outer fixed half frames are controlled to rotate and close synchronously. The inner wall of the outer fixed half frame contacts the outer wall of the spun blank, and the two outer fixed half frames provide external support and positioning for the spun blank.

[0020] Step 4: Control the opening of the first telescopic cylinder to retract, so that the inner support mold moves to the side position of the longitudinal support bracket and the inner support mold moves out of the spinning blank. Then, control the opening of the second telescopic cylinder to extend, so that the inner slide frame, mounting base and inner cutting head move to one end of the inner wall of the spinning blank.

[0021] The lifting cylinder is activated to control the lifting of the mounting base and the inner cutting head, so that the inner cutting head is always in contact with the inner wall of the spun blank. In conjunction with the activation of the fourth motor, the semi-tooth ring and the outer fixed semi-frame are driven to rotate at high speed, thereby controlling the spun blank to continue to rotate at high speed, thus directly machining the inner wall of the spun blank.

[0022] While the inner sliding frame and mounting base move, the connecting clamp slides in a sealed manner inside the telescopic sleeve. While the mounting base and inner cutting head rise and fall, the telescopic longitudinal tube slides in a sealed manner inside the connecting clamp and connects the end of the telescopic sleeve to the output port of the coolant output system. When machining the inner wall, the coolant output system is turned on. The coolant can be introduced into the nozzle through the telescopic sleeve, connecting clamp, telescopic longitudinal tube, and liquid guide tube, and then sprayed onto the inner cutting head for cooling.

[0023] Step 5: After the inner and outer walls of the spun part blank are machined, remove the fasteners and turn on the second motor to control the auxiliary support bracket to rotate in the opposite direction, so that the auxiliary support bracket is separated from the rotating cylinder. Then, turn on the linear guide to move the rotating cylinder away from the spun part equipment, and the spun part blank is separated from the rotating cylinder for automatic unloading of the spun part blank for subsequent processing of the spun part blank.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By setting an internal support mechanism to provide internal support for the spun blank, the quality and efficiency of the spun blank are improved. The movement of the spun blank can be directly controlled for external turning, and deformation from the outside to the inside is prevented during external turning of the spun blank.

[0026] 2. By setting an external fixing mechanism, the spun blank is externally supported and positioned. In conjunction with the internal support mechanism, the inner wall of the spun blank is directly machined, and the deformation of the spun blank from the inside to the outside is prevented.

[0027] 3. By setting up an auxiliary support mechanism, the rotating cylinder is provided with auxiliary support, thereby improving the stability of the rotating cylinder during rotation, and further improving the stability of the aerospace parts spinning blanks and the subsequent rotational machining of the spinning blanks. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the present invention.

[0030] Figure 2 This is a schematic diagram showing the structural connection between the inner support mechanism and the auxiliary support mechanism in this invention.

[0031] Figure 3 This is a schematic diagram of the internal support mechanism in this invention.

[0032] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 This is a partial structural connection diagram of the internal support mechanism in this invention.

[0034] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle.

[0035] Figure 7 This is a partial structural connection diagram of the internal support mechanism in this invention.

[0036] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0037] Figure 9 For the present invention Figure 7 Enlarged view of point D in the middle.

[0038] Figure 10 This is a schematic diagram showing the structural connection between the mounting base and the internal cutting head in this invention.

[0039] Figure 11 This is a schematic diagram of the supporting mechanism in this invention.

[0040] Figure 12 This is a schematic diagram of the external fixing mechanism in this invention.

[0041] Figure 13 This is a schematic diagram of the partial structural connection of the external fixing mechanism in this invention.

[0042] Figure 14 This is a schematic diagram of the partial structural connection of the external fixing mechanism in this invention.

[0043] In the diagram: 1. Base; 11. Linear guide rail; 12. Base; 2. Internal support mechanism; 3. External fixing mechanism; 4. Auxiliary support mechanism; 5. Spinning equipment; 21. Longitudinal support bracket; 22. Rotating middle cylinder; 23. Transverse sliding bracket; 231. Drive slide cylinder; 232. First telescopic cylinder; 24. Internal support module; 25. Inner sliding frame; 251. Second telescopic cylinder; 26. Mounting base; 261. Longitudinal sliding rod; 262. Lifting cylinder; 27. Mounting frame; 271. Liquid guide pipe; 272. Nozzle; 273. Telescopic longitudinal pipe; 2731. First sealing ring; 274. Connecting clamp pipe; 2741. Second sealing ring; 275. Telescopic sleeve; 28. Internal cutting head; 29. ​​Fastener; 210. First gear; 2101, Second gear; 2102, Drive shaft; 2103, First motor; 201, Storage slot; 41, Auxiliary support frame; 42, Tilting shaft; 43, Auxiliary support bracket; 431, Auxiliary support groove; 432, Ball bearing; 44, Worm gear; 441, Worm; 442, Second motor; 31, Mechanism bracket; 32, Translation guide rod; 321, Third telescopic cylinder; 33, Connecting crossbeam; 34, Rotating side frame; 341, Rotating seat; 342, Rotating shaft; 343, Transmission gear; 344, Co-drive shaft; 345, Third motor; 35, Rotating half-frame; 36, Outer fixed half-frame; 37, Half retaining ring; 371, Half gear ring; 372, Drive gear; 373, Control shaft; 374, Fourth motor. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example: Figure 1-14 As shown, the present invention provides a machining device for spinning blanks of aerospace parts, including a base 1, a linear guide rail 11 fixedly installed at the top of the base 1, a base 12 fixedly installed at the moving end of the linear guide rail 11, an inner support mechanism 2 fixedly installed at the top of the base 12, an auxiliary support mechanism 4 provided at one end of the inner support mechanism 2, an outer fixing mechanism 3 provided on the side of the top of the base 1 near the auxiliary support mechanism 4, and a spinning device 5 provided on the side of the top of the base 1 near the auxiliary support mechanism 4.

[0046] The internal support mechanism 2 includes a longitudinal support bracket 21, which is fixedly installed on the top of the base 12. A rotating central cylinder 22 is rotatably installed on the top of the longitudinal support bracket 21. Multiple transverse sliding brackets 23 arranged in a ring array are slidably clamped on one side of the rotating central cylinder 22. The outer ends of the transverse sliding brackets 23 are all fixedly installed with internal support modules 24 by bolts. The multiple internal support modules 24 are combined to form a complete internal support mold. The inner ends of the multiple transverse sliding brackets 23 are fixedly installed with drive slide cylinders 231. A first telescopic cylinder 232 is fixedly installed in the rotating central cylinder 22. The drive end of the first telescopic cylinder 232 extends into the drive slide cylinder 231 and is fixedly installed on the inner wall of the drive slide cylinder 231. When spinning is required, the first telescopic cylinder 232 is first opened to extend and control the drive slide cylinder 231 and the multiple transverse sliding brackets 23 to move towards the spinning equipment 5, so that the internal support mold moves to the middle position of the longitudinal support bracket 21.

[0047] The inner support mechanism 2 also includes an inner sliding frame 25, which is slidably engaged in the rotating cylinder 22. A second telescopic cylinder 251 is fixedly installed inside the rotating cylinder 22 on the side away from the first telescopic cylinder 232. The drive end of the second telescopic cylinder 251 is fixedly installed in the middle of the inner sliding frame 25. A mounting base 26 is provided at the bottom of the inner sliding frame 25. A longitudinal sliding rod 261 is vertically slidably installed in the inner sliding frame 25 and is fixedly installed at the top of the mounting base 26. A lifting cylinder 262 is fixedly installed in the inner sliding frame 25, and the drive end of the lifting cylinder 262 is fixedly installed in the middle of the inner sliding frame 25. The inner slide frame 27 is fixedly installed on the inner side of the mounting base 26, and the inner cutting head 28 is fixedly installed at the bottom of the mounting frame 27. When spinning is required, the second telescopic cylinder 251 is first opened to retract and control the inner slide frame 25, the mounting base 26 and the inner cutting head 28 to move to one side of the spinning equipment 5, so that the inner cutting head 28 moves to the middle position of the longitudinal support bracket 21. The inner wall ends of the two inner support modules 24 at the bottom position are provided with storage grooves 201 corresponding to the position of the inner cutting head 28. At this time, the inner cutting head 28 is stored in the storage grooves 201.

[0048] A liquid guide tube 271 is fixedly mounted on the side of the mounting frame 27. The bottom end of the liquid guide tube 271 extends out of the bottom end of the mounting frame 27 and is fixedly mounted with a nozzle 272. A telescopic longitudinal tube 273 is fixedly mounted on the top end of the liquid guide tube 271. A connecting clamp tube 274 is fixedly mounted in the rotating cylinder 22. The telescopic longitudinal tube 273 is slidably engaged in the connecting clamp tube 274. A first sealing ring 2731 is fixedly mounted on the top of the telescopic longitudinal tube 273. The first sealing ring 2731 is in contact with the inner wall of the connecting clamp tube 274. A telescopic sleeve 275 is fixedly mounted on the side of the rotating cylinder 22 near the second telescopic cylinder 251. The end of the connecting clamp tube 274 away from the telescopic longitudinal tube 273 is slidably engaged in the telescopic sleeve 275. A second sealing ring 2741 is fixedly mounted on the end of the connecting clamp tube 274 away from the telescopic longitudinal tube 273. The second sealing ring 2741 is in contact with the inner wall of the telescopic sleeve 275.

[0049] Fasteners 29 are detachably installed on the outer wall of the rotating cylinder 22 near the second telescopic cylinder 251. The aerospace part spinning blank is placed on the outside of the rotating cylinder 22 from one end and positioned at the end of the inner support mold. Fasteners 29 are then installed for limiting and fixing. Then, the linear guide 11 is opened to move the aerospace part spinning blank to the spinning equipment 5 for spinning processing to prepare the spinning blank. Due to the inner support mold, the inner wall of the spinning blank is in close contact with the inner support mold during spinning. The inner support mold provides internal support for the spinning blank, improving the spinning processing quality and efficiency of the spinning blank. After spinning processing is completed, the spinning blank is moved out of the spinning equipment 5 and moved to the position of the outer fixing mechanism 3 for subsequent turning processing of the outer side of the spinning blank. Due to the inner support mold, the spinning blank is internally supported to prevent deformation from the outside to the inside during turning processing of the outer side of the spinning blank.

[0050] A first gear 210 is fixedly installed at the end of the rotating cylinder 22 away from the fastener 29. A second gear 2101 is meshed with the bottom of the first gear 210. A drive shaft 2102 is fixedly installed in the middle of the second gear 2101. The drive shaft 2102 is rotatably mounted on the longitudinal support bracket 21. A first motor 2103 is fixedly installed on the side of the longitudinal support bracket 21 near the drive shaft 2102. The drive end of the first motor 2103 is fixedly installed with the shaft end of the drive shaft 2102. When spinning the blank of the aerospace parts and turning the outer side of the spun part blank, the first motor 2103 is turned on to drive the drive shaft 2102 and the second gear 2101 to rotate, thereby driving the first gear 210 and the rotating cylinder 22 to rotate at high speed, thereby controlling the spinning blank of the aerospace parts and the spun part blank to rotate at high speed.

[0051] The auxiliary support mechanism 4 includes an auxiliary support longitudinal frame 41, which is fixedly installed on the top of the base 12. A flipping shaft 42 is rotatably mounted on the top of the auxiliary support longitudinal frame 41. An auxiliary support bracket 43 is fixedly mounted on one end of the flipping shaft 42. An auxiliary support groove 431 is provided on one end of the auxiliary support bracket 43. A ball bearing 432 is rolled and engaged inside the auxiliary support groove 431. The end of the rotating cylinder 22 near the second telescopic cylinder 251 is movably engaged in the auxiliary support groove 431 and in contact with the ball bearing 432. A worm gear 44 is fixedly installed on the end of the flipping shaft 42 away from the auxiliary support bracket 43. A worm 441 is meshed with the outer side of the worm gear 44. The worm 441 is rotatably mounted on the outer side of the auxiliary support longitudinal frame 41. The outer wall of the auxiliary support longitudinal frame 41 is close to the worm. A second motor 442 is fixedly installed on one side of 441. The drive end of the second motor 442 and the bottom end of the worm gear 441 are fixedly installed. After the spinning blank of the aerospace parts is limited and fixed, the second motor 442 is turned on to drive the worm gear 441 to drive the worm wheel 44 and the flipping shaft 42 to rotate, thereby controlling the auxiliary support bracket 43 to rotate. This causes the end of the rotating cylinder 22 near the second telescopic cylinder 251 to be movably engaged in the auxiliary support groove 431 and to contact the ball bearing 432. The auxiliary support bracket 43 provides auxiliary support for the rotating cylinder 22, thereby improving the stability of the rotating cylinder 22 during rotation, and thus improving the stability of the spinning blank of the aerospace parts and the subsequent rotational machining of the spun parts blank.

[0052] The external fixing mechanism 3 includes a mechanism support 31, which is fixedly installed on the top of the base 1. A translation guide rod 32 is slidably mounted on the top of the mechanism support 31. A connecting crossbeam 33 is fixedly mounted on one end of the translation guide rod 32. A third telescopic cylinder 321 is fixedly mounted on the top of the mechanism support 31. The drive end of the third telescopic cylinder 321 is fixedly mounted to the connecting crossbeam 33. Rotating side frames 34 are vertically mounted on both ends of the connecting crossbeam 33. Two symmetrically distributed rotating seats 341 are movably mounted in each rotating side frame 34. A rotating shaft 342 is fixedly mounted on the end of each rotating seat 341. The rotating shaft 342 rotates and is mounted on the bottom of the rotating seat 341. Mounted on the rotating side frame 34, each rotating shaft 342 is fixedly equipped with a transmission gear 343, and the two transmission gears 343 are meshed together. A co-drive shaft 344 is fixedly installed between the two rotating shafts 342 at the bottom position. A third motor 345 is fixedly installed on the top of the rotating side frame 34, and the drive end of the third motor 345 is fixedly installed on the shaft end of the corresponding rotating shaft 342. A rotating half-frame 35 is fixedly installed at the end of the rotating seat 341. An outer fixed half-frame 36 is provided on the inner side of each of the two horizontally corresponding rotating half-frames 35. A half-clamping ring 37 is fixedly installed on the outer wall of the outer fixed half-frame 36 near the rotating half-frame 35, and the half-clamping ring 37 slides and engages. In the corresponding rotating half-frame 35, a half-tooth ring 371 is fixedly installed on the middle of the outer side of the half-clamp 37. A drive gear 372 is provided in the middle of each rotating half-frame 35. The drive gear 372 meshes with the half-tooth ring 371. A control shaft 373 is fixedly installed in the middle of the drive gear 372. The control shaft 373 is rotatably mounted on the rotating half-frame 35. A fourth motor 374 is fixedly installed on the rotating half-frame 35 near the control shaft 373. The drive end of the fourth motor 374 is fixedly installed on the shaft end of the control shaft 373. Initially, the two outer fixed half-frames 36 are in an open state. The operation is controlled by opening the third telescopic cylinder 321. The two outer fixed half-frames 36 move towards one side of the spun blank, so that the spun blank is moved between the two outer fixed half-frames 36. Then, the third motor 345 is turned on to drive the corresponding rotating shaft 342 and rotating seat 341 to rotate. With the transmission of the same drive shaft 344 and the meshing connection of the two transmission gears 343, the corresponding two sets of rotating seats 341 and outer fixed half-frames 36 are controlled to rotate and close synchronously. The inner wall of the outer fixed half-frame 36 contacts the outer wall of the spun blank. The two outer fixed half-frames 36 provide external support and positioning for the spun blank, which improves the support stability during the subsequent turning of the inner wall of the spun blank and prevents the spun blank from deforming from the inside to the outside.

[0053] A method for using a machining device for spinning blanks of aerospace parts includes the following steps:

[0054] Step 1: During the spinning process, first activate the second telescopic cylinder 251 to retract and control the inner slide frame 25, mounting base 26, and inner cutting head 28 to move towards the side of the spinning equipment 5, so that the inner cutting head 28 moves to the middle position of the longitudinal support bracket 21. Then, activate the first telescopic cylinder 232 to extend and control the drive slide cylinder 231 and multiple transverse slide brackets 23 to move towards the side of the spinning equipment 5, so that the inner support mold moves to the middle position of the longitudinal support bracket 21. At this time, the inner cutting head 28 is stored in the storage groove 201.

[0055] Subsequently, the aerospace component spinning blank is placed on the outside of the rotating cylinder 22 from one end and placed at the end of the inner support mold. Then, fasteners 29 are installed for limiting and fixing. Then, the second motor 442 is turned on to drive the worm gear 441 to drive the worm wheel 44 and the flipping shaft 42 to rotate, thereby controlling the auxiliary support bracket 43 to rotate. This causes the end of the rotating cylinder 22 near the second telescopic cylinder 251 to be movably engaged in the auxiliary support groove 431 and in contact with the ball bearing 432. The auxiliary support bracket 43 provides auxiliary support for the rotating cylinder 22.

[0056] Subsequently, the linear guide 11 is turned on to move the aerospace part spinning blank to the spinning equipment 5 for spinning. When the aerospace part spinning blank is spun, the first motor 2103 is turned on to drive the drive shaft 2102 and the second gear 2101 to rotate, thereby driving the first gear 210 and the rotating cylinder 22 to rotate at high speed, thereby controlling the aerospace part spinning blank to rotate at high speed and preparing the spinning blank. Since the inner support mold is set, during spinning, the inner wall of the spinning blank is in close contact with the inner support mold, and the inner support mold provides internal support for the spinning blank.

[0057] Step 2: After the spinning process is completed, the spun blank is moved out of the spinning equipment 5 and moved to the position of the outer fixed mechanism 3 for turning of the outer side of the spun blank. At the same time as the turning process, the rotating cylinder 22 is controlled to rotate at high speed, which drives the spun blank to rotate at high speed. Since the inner support mold is set, the spun blank is internally supported to prevent deformation from the outside to the inside when the outer side of the spun blank is turned.

[0058] Step 3: With the two outer fixed half-frames 36 in an open state, the two outer fixed half-frames 36 are moved towards the side of the spun blank by opening the third telescopic cylinder 321, so that the spun blank is moved between the two outer fixed half-frames 36. Then, the third motor 345 is turned on to drive the corresponding rotating shaft 342 and rotating seat 341 to rotate. With the transmission of the same drive shaft 344 and the meshing connection of the two transmission gears 343, the corresponding two sets of rotating seats 341 and outer fixed half-frames 36 are controlled to rotate and close synchronously. The inner wall of the outer fixed half-frame 36 contacts the outer wall of the spun blank, and the two outer fixed half-frames 36 provide external support and positioning for the spun blank.

[0059] Step 4: Control the opening of the first telescopic cylinder 232 to retract, so that the inner support mold moves to the side position of the longitudinal support bracket 21 and the inner support mold moves out of the spinning blank. Then, control the opening of the second telescopic cylinder 251 to extend, so that the inner slide frame 25, the mounting base 26 and the inner cutting head 28 move to one end of the inner wall of the spinning blank.

[0060] The lifting cylinder 262 is activated to control the lifting of the mounting base 26 and the inner cutting head 28, so that the inner cutting head 28 is always in contact with the inner wall of the spun blank. In conjunction with the activation of the fourth motor 374, the semi-tooth ring 371 and the outer fixed half frame 36 are driven to rotate at high speed, thereby controlling the spun blank to continue to rotate at high speed, so as to directly perform turning processing on the inner wall of the spun blank.

[0061] While the inner sliding frame 25 and the mounting base 26 move, the connecting clamp tube 274 slides in a sealed manner inside the telescopic sleeve 275. While the mounting base 26 and the inner cutting head 28 are raised and lowered, the telescopic longitudinal tube 273 slides in a sealed manner inside the connecting clamp tube 274, and connects the end of the telescopic sleeve 275 to the output port of the coolant output system. When the inner wall is being machined, the coolant output system is turned on, and the coolant can be introduced into the nozzle 272 through the telescopic sleeve 275, the connecting clamp tube 274, the telescopic longitudinal tube 273, and the liquid guide tube 271, and then sprayed onto the inner cutting head 28 through the nozzle 272 for cooling.

[0062] Step 5: After the inner and outer walls of the spun part blank are machined, remove the fasteners 29 and turn on the second motor 442 to control the auxiliary support bracket 43 to rotate in the opposite direction, so that the auxiliary support bracket 43 is separated from the rotating cylinder 22. Then, turn on the linear guide rail 11 to move the rotating cylinder 22 away from the spun part equipment 5, and the spun part blank is separated from the rotating cylinder 22 for automatic unloading of the spun part blank, so as to facilitate the subsequent processing of the spun part blank.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining device for spinning blanks of aerospace parts, comprising a base (1), characterized in that: A linear guide rail (11) is fixedly installed at the top of the base (1), a base (12) is fixedly installed at the moving end of the linear guide rail (11), an inner support mechanism (2) is fixedly installed at the top of the base (12), an auxiliary support mechanism (4) is provided at one end of the inner support mechanism (2), an outer fixing mechanism (3) is provided on the side of the top of the base (1) near the auxiliary support mechanism (4), and a spinning device (5) is provided on the side of the top of the base (1) near the auxiliary support mechanism (4). The internal support mechanism (2) includes a longitudinal support bracket (21), a rotating middle cylinder (22) is rotatably mounted on the top of the longitudinal support bracket (21), and a plurality of transverse sliding brackets (23) arranged in a ring array are slidably mounted on one side of the rotating middle cylinder (22). The outer ends of the transverse sliding brackets (23) are all fixedly mounted with internal support modules (24) by bolts. The plurality of internal support modules (24) are combined to form a complete internal support mold. The inner support mechanism (2) also includes an inner sliding frame (25), which is slidably engaged in the rotating cylinder (22). The bottom end of the inner sliding frame (25) is provided with a mounting base (26), and a mounting frame (27) is fixedly installed on the inner side of the mounting base (26). An inner cutting head (28) is fixedly installed on the bottom end of the mounting frame (27). The longitudinal support bracket (21) is fixedly installed on the top of the base (12), and the inner ends of the multiple transverse sliding brackets (23) are fixedly installed with drive slide cylinders (231). The rotating middle cylinder (22) is fixedly installed with a first telescopic cylinder (232), and the drive end of the first telescopic cylinder (232) extends into the drive slide cylinder (231) and is fixedly installed on the inner wall of the drive slide cylinder (231). A vertical sliding rod (261) is vertically slidably installed in the inner sliding frame (25). The vertical sliding rod (261) is fixedly installed at the top of the mounting base (26). A lifting cylinder (262) is fixedly installed in the inner sliding frame (25). The driving end of the lifting cylinder (262) is fixedly installed at the top of the mounting base (26). A second telescopic cylinder (251) is fixedly installed on the side of the rotating cylinder (22) away from the first telescopic cylinder (232). The driving end of the second telescopic cylinder (251) is fixedly installed in the middle of the inner sliding frame (25).

2. The machining device for spinning blanks of aerospace parts according to claim 1, characterized in that: The inner wall ends of the two inner support modules (24) at the bottom position are provided with storage grooves (201) corresponding to the positions of the inner cutting head (28).

3. The machining device for spinning blanks of aerospace parts according to claim 2, characterized in that: The mounting frame (27) has a liquid guide tube (271) fixedly mounted on its side. The bottom end of the liquid guide tube (271) extends out of the bottom end of the mounting frame (27) and is fixedly mounted with a nozzle (272). The top end of the liquid guide tube (271) is fixedly mounted with a telescopic longitudinal tube (273). A connecting clamp tube (274) is fixedly mounted in the rotating cylinder (22). The telescopic longitudinal tube (273) is slidably engaged in the connecting clamp tube (274). The top of the telescopic longitudinal tube (273) is fixedly mounted with a first sealing ring (2731). The first sealing ring (2731) is in contact with the inner wall of the connecting tube (274). A telescopic sleeve (275) is fixedly installed on the side of the rotating cylinder (22) near the second telescopic cylinder (251). The end of the connecting tube (274) away from the telescopic longitudinal tube (273) is slidably engaged in the telescopic sleeve (275). The end of the connecting tube (274) away from the telescopic longitudinal tube (273) is fixedly installed with a second sealing ring (2741). The second sealing ring (2741) is in contact with the inner wall of the telescopic sleeve (275).

4. The machining device for spinning blanks of aerospace parts according to claim 3, characterized in that: Fasteners (29) are detachably installed on the outer wall of the rotating cylinder (22) near the second telescopic cylinder (251).

5. The machining apparatus for spinning blanks of aerospace parts according to claim 4, characterized in that: A first gear (210) is fixedly installed at the end of the rotating cylinder (22) away from the fastener (29). A second gear (2101) is meshed with the bottom of the first gear (2101). A drive shaft (2102) is fixedly installed in the middle of the second gear (2101). The drive shaft (2102) is rotatably installed on the longitudinal support bracket (21). A first motor (2103) is fixedly installed on the side of the longitudinal support bracket (21) near the drive shaft (2102). The drive end of the first motor (2103) and the shaft end of the drive shaft (2102) are fixedly installed.

6. The machining apparatus for spinning blanks of aerospace parts according to claim 5, characterized in that: The auxiliary support mechanism (4) includes an auxiliary support longitudinal frame (41), which is fixedly installed on the top of the base (12). A flip shaft (42) is rotatably installed on the top of the auxiliary support longitudinal frame (41). An auxiliary support bracket (43) is fixedly installed on one end of the flip shaft (42). An auxiliary support groove (431) is provided on one end of the auxiliary support bracket (431). A ball bearing (432) is rolled and secured inside the auxiliary support groove (431). The rotating middle cylinder (22) is movable at the end near the second telescopic cylinder (251). The rotating shaft (42) is engaged in the auxiliary support groove (431) and in contact with the ball bearing (432). A worm gear (44) is fixedly installed at one end of the rotating shaft (42) away from the auxiliary support bracket (43). A worm (441) is meshed with the outer side of the worm gear (44). The worm (441) is rotatably installed on the outer side of the auxiliary support frame (41). A second motor (442) is fixedly installed on the side of the outer wall of the auxiliary support frame (41) near the worm (441). The drive end of the second motor (442) and the bottom end of the worm (441) are fixedly installed.

7. The machining apparatus for spinning blanks of aerospace parts according to claim 6, characterized in that: The external fixing mechanism (3) includes a mechanism support (31). The top of the mechanism support (31) is slidably fitted with a translation guide rod (32). One end of the translation guide rod (32) is fixedly installed with a connecting crossbar (33). Both ends of the connecting crossbar (33) are vertically installed with rotating side frames (34). Two rotating seats (341) are movably fitted in each of the rotating side frames (34) and are symmetrically distributed. A rotating half frame (35) is fixedly installed at the end of each rotating seat (341). An external fixing half frame (36) is provided on the inner side of each of the two rotating half frames (35) in a horizontal direction. The mechanism support (31) is fixedly installed on the top of the base (1). A third telescopic cylinder (321) is fixedly installed on the top of the mechanism support (31). The drive end of the third telescopic cylinder (321) and the connecting crossbeam (33) are fixedly installed. A rotating shaft (342) is fixedly installed on the end of the rotating seat (341). The rotating shaft (342) is rotatably installed on the rotating side frame (34). A transmission gear (343) is fixedly installed on the rotating shaft (342). The two transmission gears (343) are meshed and connected. A co-drive shaft (344) is fixedly installed between the two rotating shafts (342) at the bottom position. A third motor (345) is fixedly installed on the top of the rotating side frame (34). The drive end of the third motor (345) and the shaft end of the corresponding rotating shaft (342) are fixedly installed. A half-clamping ring (37) is fixedly installed on the outer wall of the outer fixed half-frame (36) near the rotating half-frame (35). The half-clamping ring (37) is slidably engaged in the corresponding rotating half-frame (35). A half-tooth ring (371) is fixedly installed on the middle of the outer side of the half-clamping ring (37). A drive gear (372) is provided in the middle of the rotating half-frame (35). The drive gear (372) and the half-tooth ring (371) are meshed. A control shaft (373) is fixedly installed in the middle of the drive gear (372). The control shaft (373) is rotatably installed on the rotating half-frame (35). A fourth motor (374) is fixedly installed on the side of the rotating half-frame (35) near the control shaft (373). The drive end of the fourth motor (374) and the shaft end of the control shaft (373) are fixedly installed.

8. A method of using the machining apparatus for spinning aerospace parts blanks as described in claim 7, characterized in that, Includes the following steps: Step 1: During the spinning process, first open the second telescopic cylinder (251) to retract and control the inner slide frame (25), mounting base (26) and inner cutting head (28) to move towards the spinning equipment (5), so that the inner cutting head (28) moves to the middle position of the longitudinal support bracket (21). Then, open the first telescopic cylinder (232) to extend and control the drive slide cylinder (231) and multiple transverse slide brackets (23) to move towards the spinning equipment (5), so that the inner support mold moves to the middle position of the longitudinal support bracket (21). At this time, the inner cutting head (28) is stored in the storage groove (201). Subsequently, the spinning blank of the aerospace parts is placed on the outside of the rotating cylinder (22) from one end and placed at the end of the inner support mold. Then, fasteners (29) are installed for limiting and fixing. Then, the second motor (442) is turned on to drive the worm gear (441) to drive the worm wheel (44) and the flipping shaft (42) to rotate, thereby controlling the auxiliary support bracket (43) to rotate, so that the end of the rotating cylinder (22) near the second telescopic cylinder (251) is movably engaged in the auxiliary support groove (431) and in contact with the ball (432). The auxiliary support bracket (43) provides auxiliary support for the rotating cylinder (22). Subsequently, the linear guide rail (11) is turned on to move the aerospace parts spinning blank to the spinning equipment (5) for spinning. When the aerospace parts spinning blank is spun, the first motor (2103) is turned on to drive the drive shaft (2102) and the second gear (2101) to rotate, thereby driving the first gear (210) and the rotating cylinder (22) to rotate at high speed, thereby controlling the aerospace parts spinning blank to rotate at high speed and preparing the spinning blank. Since the inner support mold is set, during spinning, the inner wall of the spinning blank is tightly attached to the inner support mold, and the inner support mold provides internal support for the spinning blank. Step 2: After the spinning process is completed, the spinning blank is moved out of the spinning equipment (5) and moved to the position of the outer fixed mechanism (3) for turning of the outer side of the spinning blank. At the same time as the turning process, the rotating cylinder (22) is controlled to rotate at high speed, which drives the spinning blank to rotate at high speed. Since the inner support mold is set, the spinning blank is internally supported to prevent deformation from the outside to the inside when the outer side of the spinning blank is turned. Step 3: With the two outer fixed half frames (36) in an open state, the two outer fixed half frames (36) are moved to the side of the spun blank by opening the third telescopic cylinder (321), so that the spun blank is moved between the two outer fixed half frames (36). Then, the third motor (345) is turned on to drive the corresponding rotating shaft (342) and rotating seat (341) to rotate. With the transmission of the same drive shaft (344) and the meshing connection of the two transmission gears (343), the corresponding two sets of rotating seats (341) and outer fixed half frames (36) are controlled to rotate and close synchronously. The inner wall of the outer fixed half frame (36) and the outer wall of the spun blank are in contact, and the two outer fixed half frames (36) provide external support and positioning for the spun blank. Step 4: Control the opening of the first telescopic cylinder (232) to retract, so that the inner support mold moves to the side position of the longitudinal support bracket (21) and the inner support mold moves out of the spinning blank. Then, control the opening of the second telescopic cylinder (251) to extend, so that the inner slide frame (25), the mounting base (26) and the inner cutting head (28) move to one end of the inner wall of the spinning blank. The lifting cylinder (262) is activated to control the lifting of the mounting base (26) and the inner cutting head (28), so that the inner cutting head (28) is always in contact with the inner wall of the spun blank. The fourth motor (374) is activated to drive the half tooth ring (371) and the outer fixed half frame (36) to rotate at high speed, thereby controlling the spun blank to continue to rotate at high speed, so as to directly perform turning processing on the inner wall of the spun blank. While the inner sliding frame (25) and the mounting base (26) move, the connecting tube (274) slides in a sealed manner inside the telescopic sleeve (275). While the mounting base (26) and the inner cutting head (28) rise and fall, the telescopic longitudinal tube (273) slides in a sealed manner inside the connecting tube (274) and connects the end of the telescopic sleeve (275) to the output port of the coolant output system. When the inner wall is being machined, the coolant output system is turned on. The coolant can be introduced into the nozzle (272) through the telescopic sleeve (275), the connecting tube (274), the telescopic longitudinal tube (273), and the liquid guide tube (271), and then sprayed onto the inner cutting head (28) through the nozzle (272) for cooling. Step 5: After the inner and outer walls of the spun blank are machined, the fasteners (29) are removed and the second motor (442) is turned on to control the auxiliary support bracket (43) to rotate in the opposite direction, so that the auxiliary support bracket (43) is separated from the rotating cylinder (22). Then, the linear guide rail (11) is turned on to move the rotating cylinder (22) away from the spun blank (5). The spun blank is separated from the rotating cylinder (22) and the spun blank is automatically unloaded so that it can be processed in the future.

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