High-speed turn-milling machining device for large thin-wall rotary body part

Abstract

The utility model discloses a high-speed turn-milling processing device for a large thin-wall revolving body part, which comprises a turntable body and a thin-wall revolving body workpiece body, the rear end of the turntable body is coaxially fixed with a clamping pipe part which can be coaxially clamped and fixed by a multi-jaw chuck, and the periphery of the front end surface of the turntable body is coaxially fixed with a positioning ferrule. The rotary table has the advantages that the rotary table body can be smoothly and coaxially combined and fixed with an existing multi-jaw chuck of a turning machining center through the clamping pipe part at the rear end, the rotary table can be conveniently used in cooperation with the existing multi-jaw chuck of the turning machining center, and the positioning ferrule is coaxially fixed to the front end of the rotary table body; and then the thin-wall rotary body workpiece body can be rapidly and coaxially positioned on the front portion of the rotary table body in the mode that the inner periphery of the rear end of the thin-wall rotary body workpiece body is in coaxial sliding fit with the outer periphery of the positioning ferrule, and the coaxial limiting mode of the thin-wall rotary body workpiece body on the rotary table body is simple and easy to achieve.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary components for turning and milling machining of large thin-walled rotary parts, and specifically relates to a high-speed turning and milling machining device for large thin-walled rotary parts. Background Technique

[0002] There are a large number of thin-walled cylinder parts with relatively large sizes in major equipment in the aerospace field. Their shape design is usually large thin-walled rotary parts. Specifically, during the process of high-speed turning the outer surface of large thin-walled rotary parts, it is necessary to reliably clamp and fix the large thin-walled rotary parts to ensure that they can be smoothly processed by the turning and milling machining center.

[0003] However, currently when clamping and fixing large thin-walled rotary parts, due to the small specifications of the multi-jaw chuck fixture of the turning and milling machining center, it can neither clamp and fix large thin-walled rotary parts. And if a multi-jaw chuck with larger specifications is specially designed, firstly, the manufacturing cost is relatively high. At the same time, when clamping and fixing large thin-walled rotary parts, due to the clamping operation being carried out by applying force only from the end of the large thin-walled rotary part, the clamping stability of the large thin-walled rotary part is average, and it is easy to loosen during the machining process, and it is also easy to clamp and deform the end of the large thin-walled rotary part. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-speed turning and milling machining device for large thin-walled rotary parts to solve the above problems. The turntable body can be smoothly coaxially combined and fixed with the existing multi-jaw chuck of the turning machining center through the clamping pipe part at the rear end, which is convenient for supporting the existing multi-jaw chuck of the turning machining center, as described in detail below.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-speed turning and milling machining device for large thin-walled rotary parts provided by the utility model includes a turntable body and a thin-walled rotary part workpiece body. A clamping pipe part that can be coaxially clamped and fixed by a multi-jaw chuck is coaxially fixed at the rear end of the turntable body;

[0007] A positioning collar is coaxially fixed around the front end face of the turntable body, and the rear part of the thin-walled rotary part workpiece body is sleeved around the positioning collar through a coaxial sliding fit between the inner circumference and the outer circumference of the positioning collar;

[0008] A plurality of internal support components for supporting the inner circumference of the thin-walled rotary part workpiece body are detachably combined on the front end face of the positioning collar, and the plurality of internal support components are evenly distributed in the circumferential direction;

[0009] A plurality of external pressing components for pressing and fixing the periphery of the thin-walled rotary body workpiece body are installed on the periphery of the turntable body, and the plurality of external pressing components are evenly distributed in the circumferential direction.

[0010] Preferably, the turntable body is a disc, the clamping pipe part is a circular pipe, and the positioning collar is a ring.

[0011] Preferably, each of the internal support components includes an arc-shaped inner support plate and a slot. A plurality of the arc-shaped inner support plates are fixedly arranged on the front end face of the positioning collar along the longitudinal direction in the circumferential direction, and the plurality of arc-shaped inner support plates are evenly distributed in the circumferential direction. The outer periphery of each arc-shaped inner support plate is in contact with the corresponding position on the inner periphery of the thin-walled rotary body workpiece body. A plug is fixedly arranged on the rear end face of each arc-shaped inner support plate along the longitudinal direction, and locking holes are formed in the end faces of all the plugs close to each other along the radial direction of the positioning collar. A plurality of the slots are formed in the front end face of the positioning collar along the longitudinal direction, and the slots are in one-to-one correspondence with the plugs and are in longitudinal sliding fit. Mounting holes are formed in the inner periphery of the positioning collar at positions corresponding to the slots along the radial direction, and the mounting holes are vertically communicated with the corresponding slots respectively. The mounting holes and the corresponding locking holes are coaxially aligned respectively, and a locking screw is coaxially inserted and installed in each group of coaxially aligned mounting holes.

[0012] Preferably, the plugs are all rectangular blocks, the slots are all rectangular blind slots, the rear ends of the plugs are in contact with the rear ends of the corresponding slots, and the rear end faces of the arc-shaped inner support plates are in contact with the front end face of the positioning collar.

[0013] Preferably, both the mounting holes and the locking holes are threaded through holes, the locking screws are coaxially combined with the mounting holes and the locking holes by means of thread fitting, and end heads for convenient gripping are arranged at the outer ends of the locking screws extending out of the corresponding mounting holes.

[0014] Preferably, the front ends of the arc-shaped inner support plates do not extend beyond the front end of the thin-walled rotary body workpiece body.

[0015] Preferably, each of the external pressing components includes an L-shaped mounting bracket and a pressing stud. A plurality of the L-shaped mounting brackets are fixedly arranged on the periphery of the turntable body, and the plurality of L-shaped mounting brackets are circumferentially and evenly arranged. The vertical portions of the L-shaped mounting brackets are fixedly arranged on the periphery of the turntable body, and the horizontal portions of the L-shaped mounting brackets all extend forward to the outer side of the rear end of the thin-walled rotary body workpiece body. The horizontal portions of the L-shaped mounting brackets are all engaged and inserted with the pressing studs along the radial direction of the thin-walled rotary body workpiece body, and bearing seats are coaxially rotatably connected to the ends of all the pressing studs close to the thin-walled rotary body workpiece body. Arc-shaped outer pressing plates are fixedly arranged on the opposite end faces of all the bearing seats through connecting seats, and the inner circumferences of the arc-shaped outer pressing plates are in fitting contact with the corresponding positions on the periphery of the thin-walled rotary body workpiece body.

[0016] Preferably, handwheels for convenient gripping are coaxially fixed to the ends of all the pressing studs away from the thin-walled rotary body workpiece body.

[0017] Preferably, locking nuts are coaxially engaged with the portions of all the pressing studs located between the corresponding handwheels and the L-shaped mounting brackets.

[0018] Using the above-mentioned high-speed turning and milling device for a large thin-walled rotary part, specifically during the process of high-speed turning and milling of the thin-walled rotary workpiece body, since the clamping tube part is coaxially fixed to the rear end face of the turntable body, the turntable body can be smoothly coaxially combined and fixed with the existing multi-jaw chuck of the turning center through the clamping tube part at the rear end, which is convenient for supporting and using with the existing multi-jaw chuck of the turning center. And since the positioning collar is coaxially fixed to the front end of the turntable body, then the thin-walled rotary workpiece body can be quickly coaxially positioned at the front part of the turntable body by the way of coaxial sliding fit between the inner periphery of the rear end of the thin-walled rotary workpiece body and the outer periphery of the positioning collar. The coaxial limiting method of the thin-walled rotary workpiece body on the turntable body is simple and easy to implement. At the same time, since a plurality of the internal support components are detachably combined at the front part of the positioning collar, and the plurality of internal support components are evenly distributed in the circumferential direction, in this way, the thin-walled rotary workpiece body can be reliably internally supported by the arc-shaped inner support plate of the internal support component fitting and contacting the inner periphery of the thin-walled rotary workpiece body, preventing the thin-walled rotary workpiece body from deforming during the turning and milling process. Specifically, when it comes to the combination and disassembly operation of the arc-shaped inner support plate at the front part of the positioning collar, when combining, the arc-shaped inner support plate can be detachably fixed to the front part of the positioning collar by the way of longitudinal sliding fit between the insertion block and the slot and the locking screw passing through the mounting hole and coaxially fitting with the locking hole. And when disassembling, only need to make the locking screw disengage from the locking hole and the mounting hole, then the insertion block can be longitudinally disengaged from the slot to disassemble the arc-shaped inner support plate from the front part of the positioning collar. The combination and disassembly method of the arc-shaped inner support plate at the front part of the positioning collar is simple and easy to operate. And specifically for the outer periphery of the turntable body, a plurality of external pressing components are installed on the outer periphery of the turntable body, and the plurality of external pressing components are evenly distributed in the circumferential direction. In this way, the thin-walled rotary workpiece body can be reliably clamped and fixed by the arc-shaped outer pressing plate of the external pressing component fitting and pressing on the outer periphery of the thin-walled rotary workpiece body, ensuring that the thin-walled rotary workpiece body can rotate together with the turntable body and can smoothly complete high-speed turning processing. And when specifically operating the external pressing component, by screwing the pressing stud forward and backward, the arc-shaped outer pressing plate can be pressed on the outer periphery of the thin-walled rotary workpiece body or separated from the outer periphery of the thin-walled rotary workpiece body. The clamping and loosening operations of the thin-walled rotary workpiece body are simple and easy to implement, which is not only convenient for quickly clamping and fixing the thin-walled rotary workpiece body for high-speed turning and milling processing, but also convenient for timely loosening and disassembling the thin-walled rotary workpiece body after the high-speed turning and milling processing is completed.

[0019] The beneficial effects are as follows: 1. The turntable body of the present utility model can be smoothly coaxially combined and fixed with the existing multi-jaw chuck of the turning center through the clamping pipe part at the rear end, which is convenient for supporting use with the existing multi-jaw chuck of the turning center;

[0020] 2. A positioning collar is coaxially fixed at the front end of the turntable body. Then, the thin-walled rotary body workpiece body can be quickly coaxially positioned at the front part of the turntable body by means of the coaxial sliding fit between the inner periphery of the rear end of the thin-walled rotary body workpiece body and the outer periphery of the positioning collar. The coaxial limiting method of the thin-walled rotary body workpiece body on the turntable body is simple and easy to implement;

[0021] 3. A plurality of internal support components are detachably combined at the front part of the positioning collar, and the plurality of internal support components are evenly distributed in the circumferential direction. In this way, the thin-walled rotary body workpiece body can be reliably internally supported by means of the arc-shaped inner support plate of the internal support component fitting and contacting the inner periphery of the thin-walled rotary body workpiece body, preventing the thin-walled rotary body workpiece body from deforming during the turning and milling process;

[0022] 4. The arc-shaped inner support plate can be detachably fixed at the front part of the positioning collar by means of the longitudinal sliding fit between the insertion block and the insertion slot and the coaxial fit of the locking screw passing through the mounting hole and the locking hole. Only by making the locking screw disengage from the locking hole and the mounting hole can the insertion block be longitudinally disengaged from the insertion slot and the arc-shaped inner support plate be detached from the front part of the positioning collar. The combination and disassembly method of the arc-shaped inner support plate at the front part of the positioning collar is simple and easy to operate;

[0023] 5. A plurality of external pressing components are installed on the outer periphery of the turntable body, and the plurality of external pressing components are evenly distributed in the circumferential direction. In this way, the thin-walled rotary body workpiece body can be reliably clamped and fixed by means of the arc-shaped outer pressing plate of the external pressing component fitting and pressing on the outer periphery of the thin-walled rotary body workpiece body, ensuring that the thin-walled rotary body workpiece body can rotate with the turntable body and can smoothly complete high-speed turning processing;

[0024] 6. By screwing the pressing stud forward and backward, the arc-shaped outer pressing plate can be pressed on the outer periphery of the thin-walled rotary body workpiece body or separated from the outer periphery of the thin-walled rotary body workpiece body. The clamping and loosening operations of the thin-walled rotary body workpiece body are simple and easy to implement, which is convenient for quickly clamping and fixing the thin-walled rotary body workpiece body for high-speed turning and milling processing, and at the same time convenient for timely loosening and detaching the thin-walled rotary body workpiece body after the high-speed turning and milling processing is completed. Brief Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is the overall axonometric schematic diagram of the present invention;

[0027] Figure 2 is the present invention Figure 1 sectional view schematic Figure 1 ;

[0028] Figure 3 is the present invention Figure 2 partial enlarged view at A of the present invention;

[0029] Figure 4 is the present invention Figure 1 sectional view schematic Figure 2 ;

[0030] Figure 5 is the present invention Figure 1 front external view of the present invention;

[0031] Figure 6 is the present invention Figure 1 rear external view of the present invention;

[0032] Figure 7 is the present invention Figure 1 left external view of the present invention;

[0033] Figure 8 is the present invention Figure 1 right external view of the present invention;

[0034] Figure 9 is the present invention Figure 1 top external view of the present invention.

[0035] The description of the reference numerals is as follows:

[0036] 1. Turntable body; 101. Clamping tube part; 2. Thin-walled rotary workpiece body; 3. External pressing assembly; 301. L-shaped mounting bracket; 302. Pressing stud; 303. Handwheel; 304. Locking nut; 305. Bearing seat; 306. Arc-shaped outer pressing plate; 307. Connecting seat; 4. Positioning collar; 5. Internal support assembly; 501. Slot; 502. Insert block; 503. Locking hole; 504. Mounting hole; 505. Locking screw; 506. Arc-shaped inner support plate; 507. End. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0038] See Figures 1-9 As shown, the present utility model provides a high-speed turning and milling processing device for large thin-walled rotating parts, including a turntable body 1 and a thin-walled rotating workpiece body 2. A clamping tube portion 101 that can be coaxially clamped and fixed by a multi-jaw chuck is coaxially fixed at the rear end of the turntable body 1. A positioning collar 4 is coaxially fixed around the front end face of the turntable body 1. The rear part of the thin-walled rotating workpiece body 2 is sleeved around the outer periphery of the positioning collar 4 in a manner of coaxial sliding fit between the inner periphery and the outer periphery of the positioning collar 4. The purpose of such a setting is that the turntable body 1 can be smoothly coaxially combined and fixed with the existing multi-jaw chuck of the turning center through the clamping tube portion 101 at the rear end, which is convenient for supporting use with the existing multi-jaw chuck of the turning center. At the same time, the thin-walled rotating workpiece body 2 can be quickly coaxially positioned at the front part of the turntable body 1 through the coaxial sliding fit between the inner periphery of the rear end of the thin-walled rotating workpiece body 2 and the outer periphery of the positioning collar 4. The coaxial limiting manner of the thin-walled rotating workpiece body 2 on the turntable body 1 is simple and easy to implement.

[0039] See Figures 1-4As shown, the front end face of the positioning collar 4 is detachably combined with a plurality of internal support components 5 for supporting the inner circumference of the thin-walled rotary workpiece body 2, and the plurality of internal support components 5 are evenly distributed in the circumferential direction. Specifically, each internal support component 5 includes an arc-shaped inner support plate 506 and a slot 501. A plurality of arc-shaped inner support plates 506 are fixedly arranged along the longitudinal direction in the circumferential direction of the front end face of the positioning collar 4, and the plurality of arc-shaped inner support plates 506 are evenly distributed in the circumferential direction. The outer peripheries of the arc-shaped inner support plates 506 are in contact with the corresponding positions of the inner circumference of the thin-walled rotary workpiece body 2. The rear end faces of the arc-shaped inner support plates 506 are fixedly provided with insertion blocks 502 along the longitudinal direction, and locking holes 503 are formed in the end faces of all the insertion blocks 502 close to each other along the radial direction of the positioning collar 4. A plurality of slots 501 are formed in the front end face of the positioning collar 4 along the longitudinal direction. The slots 501 are in one-to-one correspondence with the insertion blocks 502 and are in longitudinal sliding fit. Mounting holes 504 are formed in the inner circumference of the positioning collar 4 at the positions corresponding to the slots 501 along the radial direction. The mounting holes 504 are vertically communicated with the corresponding slots 501, and the mounting holes 504 and the corresponding locking holes 503 are coaxially aligned. A locking screw 505 is coaxially inserted into each group of coaxially aligned mounting holes 504. The function of this setting is that the thin-walled rotary workpiece body 2 can be reliably internally supported by the way that the arc-shaped inner support plate 506 of the internal support component 5 is in contact with the inner circumference of the thin-walled rotary workpiece body 2. More specifically, the arc-shaped inner support plate 506 can be detachably fixed to the front part of the positioning collar 4 by the longitudinal sliding fit between the insertion block 502 and the slot 501 and the coaxial fit between the locking screw 505 passing through the mounting hole 504 and the locking hole 503. Only by removing the locking screw 505 from the locking hole 503 and the mounting hole 504 can the insertion block 502 be longitudinally removed from the slot 501 to detach the arc-shaped inner support plate 506 from the front part of the positioning collar 4. The combination and disassembly methods of the arc-shaped inner support plate 506 at the front part of the positioning collar 4 are simple and easy to operate.

[0040] See Figures 1-4As shown, a plurality of external pressing components 3 for pressing and fixing the periphery of the thin-walled rotary body workpiece body 2 are installed on the periphery of the turntable body 1, and the plurality of external pressing components 3 are evenly distributed in the circumferential direction. Specifically, each external pressing component 3 includes an L-shaped mounting bracket 301 and a pressing stud 302. A plurality of L-shaped mounting brackets 301 are fixed on the periphery of the turntable body 1, and the plurality of L-shaped mounting brackets 301 are evenly distributed in the circumferential direction. The vertical portions of the L-shaped mounting brackets 301 are fixed on the periphery of the turntable body 1, and the horizontal portions of the L-shaped mounting brackets 301 all extend forward to the outside of the rear end of the thin-walled rotary body workpiece body 2. The horizontal portions of the L-shaped mounting brackets 301 are all engaged and inserted with pressing studs 302 along the radial direction of the thin-walled rotary body workpiece body 2. The ends of all the pressing studs 302 close to the thin-walled rotary body workpiece body 2 are coaxially rotatably connected with bearing seats 305. Arc-shaped outer pressing plates 306 are fixed to the opposite end faces of all the bearing seats 305 through connecting seats 307, and the inner circumferences of the arc-shaped outer pressing plates 306 are in contact with the corresponding positions on the periphery of the thin-walled rotary body workpiece body 2. The reason for such a setting is that the thin-walled rotary body workpiece body 2 can be reliably clamped and fixed by the arc-shaped outer pressing plates 306 of the external pressing components 3 fitting and pressing on the periphery of the thin-walled rotary body workpiece body 2. More specifically, by screwing the pressing studs 302 forward and backward, the arc-shaped outer pressing plates 306 can be pressed on the periphery of the thin-walled rotary body workpiece body 2 or separated from the periphery of the thin-walled rotary body workpiece body 2, and the clamping and loosening operations of the thin-walled rotary body workpiece body 2 are simple and easy to implement.

[0041] See Figures 1-4 As shown, it is optional that the turntable body 1 is a disc, the clamping pipe portion 101 is a circular pipe, and the positioning collar 4 is a ring, so as to facilitate the turntable body 1 to rotate smoothly with the multi-jaw chuck, ensure that the clamping pipe portion 101 can be coaxially fixed by the multi-jaw chuck, and ensure that the rear end of the thin-walled rotary body workpiece body 2 can be coaxially sleeved on the periphery of the positioning collar 4.

[0042] See Figures 1-4As shown in the figure, the following optimizations are carried out on the internal support component 5 and the external pressing component 3 respectively. Specifically for the internal support component 5, the insertion blocks 502 are all rectangular blocks, the slots 501 are all rectangular blind slots, and the rear ends of the insertion blocks 502 are in contact with the rear ends of the corresponding slots 501. The rear end faces of the arc-shaped inner support plates 506 are in contact with the front end faces of the positioning collar 4. With such a setting, it is convenient for the insertion blocks 502 and the slots 501 to have a good positioning and guiding design during sliding fit. At the same time, when the locking holes 503 longitudinally slide with the insertion blocks 502, when the locking holes 503 move to be coaxially aligned with the mounting holes 504, obvious prompts can be given by the way that the rear end faces of the arc-shaped inner support plates 506 are in contact with the front end faces of the positioning collar 4. Further optionally, both the mounting holes 504 and the locking holes 503 are threaded through holes, and the locking screws 505 are coaxially combined with the mounting holes 504 and the locking holes 503 through threaded cooperation. At the same time, the outer ends of the locking screws 505 extending out of the corresponding mounting holes 504 are all provided with end heads 507 for convenient gripping. With such a setting, first, it is convenient for the locking screws 505 to be quickly combined and disassembled with the mounting holes 504 and the locking holes 503 by screwing. At the same time, it is convenient to drive the locking screws 505 to rotate by applying force through gripping the end heads 507. Specifically for the arc-shaped inner support plates 506, the front ends of the arc-shaped inner support plates 506 do not extend beyond the front end of the thin-walled rotary body workpiece body 2. With such a setting, it is convenient to prevent the arc-shaped inner support plates 506 from being too long and interfering with the smooth turning and milling processing operation of the thin-walled rotary body workpiece body 2.

[0043] Specifically for the external pressing component 3, the ends of all the pressing studs 302 away from the thin-walled rotary body workpiece body 2 are coaxially fixed with handwheels 303 for convenient gripping, so as to drive the pressing studs 302 to rotate by applying force through gripping the handwheels 303. At the same time, optionally, the parts of all the pressing studs 302 between the corresponding handwheels 303 and the L-shaped mounting brackets 301 are coaxially engaged with locking nuts 304. With such a setting, when the pressing studs 302 are screwed to drive the arc-shaped outer pressing plates 306 to press against the outer periphery of the rear part of the thin-walled rotary body workpiece body 2, the pressing studs 302 can be locked and prevented from rotating freely by screwing the locking nuts 304 to press against the surface of the L-shaped mounting brackets 301.

[0044] With the above structure, specifically during the process of high-speed turning and milling of the thin-walled rotary workpiece body 2, since the clamping tube portion 101 is coaxially fixed to the rear end face of the turntable body 1, the turntable body 1 can be smoothly coaxially combined and fixed with the existing multi-jaw chuck of the turning center through the clamping tube portion 101 at the rear end, which is convenient for matching and using with the existing multi-jaw chuck of the turning center. And since the positioning collar 4 is coaxially fixed to the front end of the turntable body 1, then the thin-walled rotary workpiece body 2 can be quickly coaxially positioned at the front part of the turntable body 1 by means of the coaxial sliding fit between the inner periphery of the rear end of the thin-walled rotary workpiece body 2 and the outer periphery of the positioning collar 4. The coaxial limiting method of the thin-walled rotary workpiece body 2 on the turntable body 1 is simple and easy to implement. At the same time, since a plurality of internal support components 5 are detachably combined at the front part of the positioning collar 4, and the plurality of internal support components 5 are evenly arranged in the circumferential direction, in this way, the thin-walled rotary workpiece body 2 can be reliably internally supported by the arc-shaped inner support plate 506 of the internal support component 5 in contact with the inner periphery of the thin-walled rotary workpiece body 2, preventing the thin-walled rotary workpiece body 2 from deforming during the turning and milling process. Specifically, when it comes to the combination and disassembly operations of the arc-shaped inner support plate 506 at the front part of the positioning collar 4, when combining, the arc-shaped inner support plate 506 can be detachably fixed to the front part of the positioning collar 4 by the longitudinal sliding fit between the insertion block 502 and the insertion slot 501 and the coaxial fit of the locking screw 505 passing through the mounting hole 504 and the locking hole 503. And when disassembling, only need to make the locking screw 505 disengage from the locking hole 503 and the mounting hole 504, and then the insertion block 502 can be longitudinally disengaged from the insertion slot 501 to disassemble the arc-shaped inner support plate 506 from the front part of the positioning collar 4. The combination and disassembly method of the arc-shaped inner support plate 506 at the front part of the positioning collar 4 is simple and easy to operate. And specifically for the outer periphery of the turntable body 1, a plurality of external pressing components 3 are installed on the outer periphery of the turntable body 1, and the plurality of external pressing components 3 are evenly arranged in the circumferential direction. In this way, the thin-walled rotary workpiece body 2 can be reliably clamped and fixed by the arc-shaped outer pressing plate 306 of the external pressing component 3 pressing against the outer periphery of the thin-walled rotary workpiece body 2, ensuring that the thin-walled rotary workpiece body 2 can rotate with the turntable body 1 and can smoothly complete high-speed turning. And when operating the external pressing component 3, by rotating the pressing stud 302 forward and backward, the arc-shaped outer pressing plate 306 can be pressed against the outer periphery of the thin-walled rotary workpiece body 2 or separated from the outer periphery of the thin-walled rotary workpiece body 2. The clamping and loosening operations of the thin-walled rotary workpiece body 2 are simple and easy to implement, which is not only convenient for quickly clamping and fixing the thin-walled rotary workpiece body 2 for high-speed turning and milling, but also convenient for timely loosening and disassembling the thin-walled rotary workpiece body 2 after the high-speed turning and milling is completed.

[0045] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A high-speed turning and milling device for large thin-walled rotating parts, comprising a turntable body (1) and a thin-walled rotating workpiece body (2), characterized in that: A clamping tube portion (101) capable of being coaxially clamped and fixed by a multi-jaw chuck is coaxially fixed to the rear end of the turntable body (1); A positioning ring (4) is coaxially fixed around the front end surface of the turntable body (1), and the rear portion of the thin-walled rotating workpiece body (2) is sleeved on the periphery of the positioning ring (4) by means of a coaxial sliding fit between the inner periphery and the periphery of the positioning ring (4); The front end surface of the positioning ring (4) is detachably assembled with a plurality of internal support components (5) for supporting the inner periphery of the thin-walled rotating workpiece body (2), and the plurality of internal support components (5) are evenly distributed in the circumferential direction; A plurality of external clamping components (3) for clamping and fixing the periphery of the thin-walled rotating workpiece body (2) are installed on the periphery of the turntable body (1), and the plurality of external clamping components (3) are evenly distributed in the circumferential direction.

2. The high-speed turning and milling device for large thin-walled rotating parts according to claim 1, characterized in that: The turntable body (1) is a circular disk, the clamping tube portion (101) is a circular tube, and the positioning ring (4) is a circular ring.

3. The high-speed turning and milling device for large thin-walled rotating parts according to claim 2, characterized in that: The internal support components (5) each include an arc-shaped inner support plate (506) and a slot (501); the front end face of the positioning collar (4) is circumferentially and longitudinally extended with a plurality of the arc-shaped inner support plates (506) fixed thereto; the plurality of the arc-shaped inner support plates (506) are evenly distributed in the circumferential direction, and the outer peripheries of the arc-shaped inner support plates (506) are in close contact with the corresponding positions of the inner periphery of the thin-walled rotating workpiece body (2); the rear end faces of the arc-shaped inner support plates (506) are longitudinally fixed with plug blocks (502), and the end faces of all the plug blocks (502) close to each other are provided with locking members along the radial direction of the positioning collar (4). The front end surface of the positioning ring (4) is provided with a plurality of slots (501) in the longitudinal direction, the slots (501) correspond to the insert block (502) one by one and are longitudinally slidably matched, the inner periphery of the positioning ring (4) is provided with mounting holes (504) in the radial direction at positions corresponding to the slots (501), the mounting holes (504) are vertically connected to the corresponding slots (501), and the mounting holes (504) are coaxially matched with the corresponding locking holes (503), and each group of coaxially matched mounting holes (504) is coaxially inserted with locking screws (505).

4. The high-speed turning and milling device for large thin-walled rotating parts according to claim 3, characterized in that: The insert blocks (502) are all rectangular blocks, the slots (501) are all rectangular blind slots, and the rear ends of the insert blocks (502) are in close contact with the rear ends of the corresponding slots (501), and the rear end faces of the arc-shaped inner support plates (506) are in close contact with the front end faces of the positioning rings (4).

5. The high-speed turning and milling device for large thin-walled rotating parts according to claim 4, characterized in that: The mounting hole (504) and the locking hole (503) are both threaded through holes, and the locking screw (505) is coaxially assembled with the mounting hole (504) and the locking hole (503) by means of threaded matching, and the outer end of the locking screw (505) extending out of the corresponding mounting hole (504) is provided with an end cap (507) for easy holding.

6. The high-speed turning and milling device for large thin-walled rotating parts according to claim 5, characterized in that: The front ends of the arc-shaped inner support plates (506) do not extend beyond the front end of the thin-walled rotating workpiece body (2).

7. A high-speed turning and milling device for large thin-walled rotating parts according to any one of claims 3 to 5, characterized in that: The external clamping components (3) each include an L-shaped mounting frame (301) and a clamping stud (302); a plurality of the L-shaped mounting frames (301) are fixed to the periphery of the turntable body (1), and the plurality of the L-shaped mounting frames (301) are evenly distributed in the circumferential direction; the vertical portions of the L-shaped mounting frames (301) are fixed to the periphery of the turntable body (1); the horizontal portions of the L-shaped mounting frames (301) extend forward to the rear end outside the thin-walled rotating workpiece body (2); and the L-shaped mounting frames (301) are fixed to the periphery of the turntable body (1). The horizontal parts are all interspersed with the clamping studs (302) along the radial meshing of the thin-walled rotating workpiece body (2), and the ends of all the clamping studs (302) close to the thin-walled rotating workpiece body (2) are coaxially rotatably connected to the bearing seats (305), and the end surfaces of all the bearing seats (305) facing each other are fixed with arc-shaped outer pressure plates (306) through connecting seats (307), and the inner peripheries of the arc-shaped outer pressure plates (306) are in close contact with the corresponding positions of the outer periphery of the thin-walled rotating workpiece body (2).

8. The high-speed turning and milling device for large thin-walled rotating parts according to claim 7, characterized in that: The ends of all the clamping studs (302) away from the thin-walled rotating workpiece body (2) are coaxially fixed with a hand wheel (303) for easy holding.

9. The high-speed turning and milling device for large thin-walled rotating parts according to claim 8, characterized in that: The portions of all the clamping studs (302) located between the corresponding hand wheels (303) and the L-shaped mounting frame (301) are coaxially engaged with locking nuts (304).

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