CN215200712U - Lathe fixture for turbine disc of aircraft engine - Google Patents
Lathe fixture for turbine disc of aircraft engine Download PDFInfo
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- CN215200712U CN215200712U CN202121801341.0U CN202121801341U CN215200712U CN 215200712 U CN215200712 U CN 215200712U CN 202121801341 U CN202121801341 U CN 202121801341U CN 215200712 U CN215200712 U CN 215200712U
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Abstract
The utility model discloses an aircraft engine turbine disc lathe fixture, which is applied in the field of aircraft engine turbine discs, and solves the technical problems that the size of the turbine disc after rough machining or between machining has deviation and the existing fixture can not stably clamp; the clamping device has the technical effect that the turbine disc after rough machining or before machining can be stably clamped, so that the machining precision is improved.
Description
Technical Field
The utility model relates to an aircraft engine turbine dish field, in particular to aircraft engine turbine dish turning attachment.
Background
The turbine disk is one of the core components of an aircraft engine, works at high temperature and high speed, and is large in size.
The machining of the turbine disc is generally divided into three stages, namely a rough machining stage, a fine machining stage and a finish machining stage, wherein the rough machining stage is mainly used for removing most machining allowance and ensuring the uniformity of allowance of subsequent procedures, and the turbine disc is mainly used for machining an outer circle and an end face, and because the allowance is large and a workpiece is heavy, a vertical lathe is usually adopted for turning.
At present, chinese patent with publication number CN211192965U, a turbine disc turning anchor clamps, include base member and a plurality of pressure components, the base member is ring shape, and is a plurality of pressure components set up along the surperficial edge equipartition of base member, and every pressure components includes supporting screw, supporting nut, housing screw, clamp plate, gasket and housing screw, supporting screw and housing screw outside-in are cartridge on the base member in proper order, and supporting nut suit is on supporting screw, and housing screw, gasket and clamp plate suit are on housing screw from right to left in proper order, and the lower part of clamp plate contacts with supporting screw's right side.
However, the fixture can only clamp a turbine disc with a fixed size, the size of the turbine disc subjected to rough machining or not subjected to machining is not very accurate, the size of the turbine disc subjected to rough machining or before machining is not matched with that of the positioning boss or the turbine disc cannot be placed into the positioning boss, and therefore workpieces shake in the fixture in the machining process to influence the machining precision, and therefore the fixture capable of stably clamping the turbine disc is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an aircraft engine turbine dish turning attachment, its advantage can carry out stable clamping to the turbine dish after the rough machining or before processing to improve the machining precision.
The above technical purpose of the present invention can be achieved by the following technical solutions: the lathe fixture for the turbine disc of the aircraft engine comprises a base disc and a working disc, wherein the working disc is arranged on the base disc, and the working disc and the base disc are in the same circle center;
the chassis is provided with a pressing component, the working disc is provided with a reference block, and the working disc is provided with a jacking component;
the tight subassembly in top includes sliding block, lower pinion rack and upper tooth plate, be equipped with pneumatic push rod in the working disc, pneumatic push rod goes up the cooperation and has the slider, slider and sliding block interlock, lower pinion rack is fixed on the sliding block, upper tooth plate and lower pinion rack interlock, first regulation hole has been seted up to the upper tooth plate, be equipped with first pushing screw on the upper tooth plate, first pushing screw and first regulation hole butt, first pushing screw and sliding block screw-thread fit.
Through the technical scheme, the workpiece is placed on the reference block on the working disc, the workpiece is placed more stably through the reference block, the upper end face of the workpiece is pressed tightly through the pressing component, and the inner side of the workpiece is supported outwards through the jacking component, so that the workpiece is more stable during machining;
pneumatic push rod makes the slider remove, thereby the slider removes and makes the sliding block remove, thereby the sliding block removes and makes lower pinion rack remove, and then go up the pinion rack and remove to the one end of going up the pinion rack is tight to the outside top in the inboard of work piece, when the position of going up the pinion rack is further adjusted to needs, first regulation hole makes goes up the pinion rack and moves on first pushing down the screw, and then has adjusted the position of going up the pinion rack relative to the sliding block, thereby in order to adapt to the difference of the inboard to sliding block position distance of work piece.
The utility model discloses further set up to: the pressing component comprises a supporting frame, a rotating block and a pressing plate, the supporting frame is fixed on the chassis, the rotating block is rotationally connected with a support frame, a locking column for locking the position of the rotating block is arranged on the support frame, the locking column is inserted into the rotating block through the supporting frame, the rotating block is provided with a fixed screw and a second pressing screw, the fixed screw rod is arranged at one end of the rotating block far away from the working disc, the second pressing screw rod is arranged at one end of the rotating block close to the working disc, the lower pressing plate is provided with a second adjusting hole, the second lower pressing screw is abutted with the second adjusting hole, the fixed screw rod passes through the second adjusting hole, a supporting spring is sleeved on the second pressing screw rod, one end of the supporting spring is abutted to the rotating block, one end, far away from the rotating block, of the supporting spring is connected with a gasket, and the gasket is abutted to one side, close to the rotating block, of the lower pressing plate.
Through the technical scheme, the rotating block is positioned at a proper height by the supporting plate, so that a lower pressing plate arranged on the rotating block can conveniently compress a workpiece, when the workpiece is not required to be compressed, the rotating block is rotated to the side far away from the workpiece, so that the lower pressing plate is separated from the range of the workpiece, the workpiece is conveniently taken and placed, the locking column locks the position of the rotating block relative to the supporting plate, and the lower pressing plate can stably compress the workpiece;
when the lower pressing plate is located at a position where a workpiece needs to be pressed, the second lower pressing screw rod is rotated, so that the lower pressing plate moves downwards and is pressed against the workpiece, the position of the lower pressing plate is conveniently adjusted through the second adjusting hole, a proper pressing position is selected, and when the lower pressing plate is not pressed against the workpiece, the lower pressing plate is upwards supported by the supporting spring and the gasket, so that the lower pressing plate is not in surface contact with the workpiece.
The utility model discloses further set up to: a plurality of friction bumps are arranged at one end, facing the lower pressing plate, of the upper toothed plate, and corresponding scale marks are arranged on the side faces of the upper toothed plate and the lower toothed plate.
Through above-mentioned technical scheme, the friction bump makes the frictional force of going up pinion rack and the inboard contact of work piece bigger to stable tight to the work piece top, the scale mark makes the pinion rack grasp more easily for what of the distance that lower pinion rack removed, thereby the convenience is adjusted last pinion rack.
The utility model discloses further set up to: the both sides of going up the pinion rack are provided with the butt screw rod, the butt screw rod rotates and is connected with the fine setting wheel, the fine setting wheel is close to one side laminating of going up pinion rack and corresponding one side of going up pinion rack and pinion rack down.
Through above-mentioned technical scheme, the butt screw rod will finely tune the wheel and laminate with one side of last pinion rack and lower pinion rack, first screw rod not with last pinion rack butt under the circumstances, rotate the fine setting wheel, rely on the fine setting wheel to make with the frictional force of last pinion rack and lower pinion rack and go up the pinion rack and remove to realize finely tuning.
The utility model discloses further set up to: and a positioning column is arranged at the circle center of the working disc.
Through the technical scheme, the positioning column is convenient for the hole in the center of the workpiece to be placed on the positioning column, so that the workpiece can be conveniently placed, and the processing stability is improved.
The utility model discloses further set up to: the benchmark piece is six and evenly distributed, the tight subassembly in top is three groups and evenly distributed, it is four groups and evenly distributed to push down the subassembly.
By the technical scheme, the workpiece is stably placed on the reference block; the stress on the inner side of the workpiece is more uniform and stable; the workpiece is more stably pressed.
The utility model discloses further set up to: the working disc is provided with an adjusting groove, and the adjusting groove is T-shaped.
Through above-mentioned technical scheme, the position of reference block is placed for reserving to the adjustment tank to the convenient position to the reference block is adjusted, and bolted connection's nut and the inboard butt of adjustment tank on the convenient reference block of adjustment tank of T shape, thereby the position of fixed adjustment tank, and the adjustment tank can also make the reference block fix in the different positions of adjustment tank, and then adapts to different demands.
The utility model discloses further set up to: a plurality of accommodating grooves for accommodating the rotating blocks are formed in the chassis.
Through the technical scheme, when the lower pressing plate does not compress the workpiece conveniently, the rotating block is rotated to a state far away from the working disc, and the rotating block is convenient to place.
The utility model discloses further set up to: the chassis is provided with a plurality of lifting rings which are uniformly arranged.
Through above-mentioned technical scheme, the whole weight of anchor clamps is heavier to weight can further aggravate after the clamping good work piece, so need rings make things convenient for hoisting equipment to remove the chassis, and then make things convenient for getting of anchor clamps to put
To sum up, the utility model discloses following beneficial effect has:
1. the inner sides of the workpieces are tightly pushed through the matching of the sliding block, the lower toothed plate and the upper toothed plate, and the position of the upper toothed plate can be adjusted so as to ensure that the inner sides of the workpieces with different sizes can be tightly pushed;
2. through the cooperation of support frame, turning block and holding down plate to the realization compresses tightly the work piece, and the turning block rotates with the support frame and is connected, thereby can rotate the position of keeping away from the work piece when need not compressing tightly, and then makes things convenient for getting of work piece to put, and the locking post makes the turning block for the rigidity of support frame, has further guaranteed the stability of holding down plate compressing tightly the work piece.
Drawings
Fig. 1 is an overall configuration diagram of the present embodiment;
FIG. 2 is a schematic structural view of the tightening unit of the present embodiment;
fig. 3 is a schematic structural diagram of the pressing assembly of the present embodiment.
Reference numerals: 1. a chassis; 2. a working plate; 3. a sliding block; 4. a lower toothed plate; 5. an upper toothed plate; 6. a first adjustment aperture; 7. a first down-pressing screw; 8. a support frame; 9. rotating the block; 10. a lower pressing plate; 11. a locking post; 12. fixing the screw rod; 13. a second down-pressing screw; 14. a second adjustment aperture; 15. a support spring; 16. a gasket; 17. a reference block; 18. rubbing the salient points; 19. scale lines; 20. a fine adjustment wheel; 21. abutting against the screw; 22. a positioning column; 23. an adjustment groove; 24. an accommodating recess; 25. a hoisting ring; 26. a locking hole; 28. a first locking groove; 29. a second locking slot; 30. a rotating shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1, an aircraft engine turbine disc turning attachment includes chassis 1 and working disc 2, and bolted connection of working disc 2 is on chassis 1, and working disc 2 and chassis 1 are the same centre of a circle, and under the size ratio chassis 1 of working disc 2, the even distribution in edge on chassis 1 has a plurality of rings 25 to make things convenient for hoisting equipment to remove chassis 1 through rings 25.
Referring to fig. 1, a positioning column 22 is bolted at the center of the working plate 2, six reference blocks 17 are bolted on the working plate 2, the reference blocks 17 are uniformly distributed on the working plate 2, the upward surface of each reference block 17 is a flat plane, so that a workpiece passes through the positioning column 22 and is stably placed on the reference block 17, and a hanging ring 25 can be bolted on the reference block 17.
Referring to fig. 1 and 2, three groups of evenly distributed jacking assemblies are arranged on a working disc 2, each group of jacking assemblies comprises a sliding block 3, a lower toothed plate 4 and an upper toothed plate 5, a pneumatic push rod is arranged in the working disc 2, the pneumatic push rod is in sliding fit with a sliding block, the sliding block is meshed with the sliding block 3, so that the sliding block is driven to move while moving, the lower toothed plate 4 is in bolted connection with the sliding block 3, the lower toothed plate 4 is meshed with the upper toothed plate 5, the upper toothed plate 5 is provided with two first adjusting holes 6, the two first adjusting holes 6 are respectively abutted with first lower pressing screws 7, the two first lower pressing screws 7 penetrate through the lower toothed plate 4 to be in threaded connection with the sliding block 3, when the first lower pressing screws 7 are not abutted with the first adjusting holes 6, the upper toothed plate 5 can be manually moved to meet requirements of different positions, and the height of the upper toothed plate 5 is higher than that of a reference block 17;
a plurality of friction bumps 18 are formed at one end, facing the lower pressing plate 10, of the upper toothed plate 5, and the friction bumps 18 are abutted against the inner side surface of the workpiece, so that the friction force between the upper toothed plate 5 and the workpiece is increased when the inner side surface of the workpiece is tightly jacked by the upper toothed plate 5, and the workpiece is further stably jacked by the upper toothed plate 5;
the two sides of the upper toothed plate 5 are in threaded connection with abutting screw rods 21, the abutting screw rods 21 are connected with fine adjustment wheels 20, a groove is formed in the center of each fine adjustment wheel 20, the abutting screw rods 21 are abutted to the groove of each fine adjustment wheel 20, meanwhile, the fine adjustment wheels 20 are rotatably connected with the abutting screw rods 21, the abutting screw rods 21 abut against the fine adjustment wheels 20, so that one sides of the fine adjustment wheels 20 are simultaneously and tightly attached to one sides of the upper toothed plate 5 corresponding to the lower toothed plate 4, the fine adjustment wheels 20 are rotated under the condition that the first downward pressing screw rods 7 do not abut against the first adjustment holes 6, so that the upper toothed plate 5 moves relative to the lower toothed plate 4, two fine adjustment wheels 20 are arranged on each of the two sides of the upper toothed plate 5, and four fine adjustment wheels 20 are arranged in total;
the scale mark 19 has been all seted up in corresponding position to the side of going up the same one side of pinion rack 5 and lower pinion rack 4 to conveniently learn the distance of going up the pinion rack 5 for the position that lower pinion rack 4 removed, and then conveniently adjust the position of going up pinion rack 5.
Referring to fig. 1 and 3, four sets of pressing assemblies are uniformly arranged on a chassis 1, each set of pressing assembly includes a support frame 8, a rotating block 9 and a pressing plate 10, the support frame 8 is connected to the chassis 1 through a bolt, one end of the support frame 8, which is far away from the chassis 1, is provided with a locking hole 26 and a rotating hole, a rotating shaft 30 is fixed in the rotating hole, the support frame 8 is rotatably connected with the rotating block 9 through the rotating shaft 30, a locking column 11 is slidably fitted in the locking hole 26, the rotating block 9 is provided with a first locking groove 28 and a second locking groove 29 which are matched with the locking column 11, the first locking groove 28 and the second locking groove 29 respectively correspond to the rotating block 9 and the support frame 11 when the rotating block 9 and the support frame 8 are in different states, so that the locking column 11 can be inserted into the first locking groove 28 and the second locking groove 29 when the rotating block is in different states, and further fixes the position of the rotating block 9 relative to the support frame 8;
a fixed screw 12 and a second lower pressing screw 13 are connected to one side of the rotating block 9 far from the support frame 8 through threads, the fixed screw 12 is connected to one end of the rotating block 9 far from the working disc 2, the second lower pressing screw 13 is connected to one end of the rotating block 9 near the working disc 2, the lower pressing plate 10 is arranged on the upper side of the rotating block 9, two second adjusting holes 14 are arranged on the lower pressing plate 10 in parallel, the second lower pressing screw 13 is abutted to one second adjusting hole 14, the fixed screw 12 passes through one second adjusting hole 14, under the condition that the second lower pressing screw 13 is not abutted, the position of the lower pressing plate 10 is finely adjusted through the second adjusting hole 14, a support spring 15 is sleeved on the second lower pressing screw 13, one end of the support spring 15 is abutted to the rotating block 9, one end of the support spring 15 far from the support frame 8 is connected with a gasket 16, the gasket 16 and the support spring 15 are integrally formed or welded, the gasket 16 is abutted to one side of the lower pressing plate 10 near the rotating block 9, when the second pressing screw 13 is not abutted against the second adjusting hole 14, the lower pressing plate 10 is supported, so that the lower pressing plate 10 is not contacted with the surface of the workpiece;
set up a plurality of recesses 24 that hold on the bottom plate, hold the position when recess 24 holds turning block 9 and keeps away from working disc 2 to better placing turning block 9.
Referring to fig. 1 and 2, an adjusting groove 23 is formed in the working plate 2, the cross section of the adjusting groove 23 is "T" shaped, and the adjusting groove 23 plays a role of reserving the reference block 17, so that the position of the reference block 17 can be selected and adjusted in various ways, thereby meeting different processing requirements.
The operation process comprises the following steps: a workpiece passes through the positioning column 22 and is placed on the reference block 17, then the pneumatic push rod runs to drive the sliding block to move, so that the sliding block 3 moves, the lower toothed plate 4 moves, the upper toothed plate 5 is pressed against the inner side of the workpiece, the rotating block 9 is turned over, the lower pressing plate 10 is moved to be adjusted to a proper pressing position, the second lower pressing screw 13 is screwed to be abutted against the second adjusting hole 14, the position of the lower pressing plate 10 is fixed, the workpiece is pressed, and clamping of the workpiece is completed;
when the position of the upper toothed plate 5 relative to the lower toothed plate 4 needs to be adjusted to increase the tight jacking range of the upper toothed plate 5, the first downward pressing screw 7 is loosened, the fine adjustment wheel 20 is rotated or the position of the upper toothed plate 5 relative to the lower toothed plate 4 is manually pushed so as to adjust the position of the upper toothed plate 5, and after the adjustment is finished, the first downward pressing screw 7 is screwed to abut against the first adjustment hole 6 so as to fix the position of the upper toothed plate 5 and complete the adjustment of the position of the upper toothed plate 5;
when the rotary block 9 is in a state of pressing the workpiece, the locking post 11 is inserted into the first locking groove 28 of the rotary block 9, thereby fixing the position of the rotary block 9, when the workpiece does not need to be pressed, the second down-pressure screw 13 is loosened, and at the same time, the support spring 15 separates the lower pressing plate 10 from the surface of the workpiece, the locking post 11 is pulled out from the first locking groove 28, the rotary block 9 is turned over, the rotary block 9 is placed into the accommodating groove 24, the locking post 11 is pushed again and inserted into the second locking groove 29, thereby fixing the position of the rotary block 9.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. The lathe fixture for the turbine disc of the aircraft engine comprises a chassis (1) and a working disc (2), wherein the working disc (2) is arranged on the chassis (1), and the working disc (2) and the chassis (1) are in the same circle center;
the device is characterized in that a pressing component is arranged on the chassis (1), a reference block (17) is arranged on the working disc (2), and a jacking component is arranged on the working disc (2);
the tight subassembly in top includes sliding block (3), pinion rack (4) and last pinion rack (5), be equipped with pneumatic push rod in work dish (2), the cooperation has the slider on the pneumatic push rod, slider and sliding block (3) interlock, pinion rack (4) are fixed on sliding block (3) down, go up pinion rack (5) and pinion rack (4) interlock down, go up pinion rack (5) and seted up first regulation hole (6), be equipped with first holding screw (7) down on going up pinion rack (5), first holding screw (7) and first regulation hole (6) butt down, first holding screw (7) and sliding block (3) screw-thread fit down.
2. The aircraft engine turbine disc lathe fixture as claimed in claim 1, wherein the pressing assembly comprises a support frame (8), a rotating block (9) and a pressing plate (10), the support frame (8) is fixed on the chassis (1), the rotating block (9) is rotatably connected with the support frame (8), a locking column (11) for locking the position of the rotating block (9) is arranged on the support frame (8), the locking column (11) is inserted into the rotating block (9) through the support frame (8), a fixing screw (12) and a second pressing screw (13) are arranged on the rotating block (9), the fixing screw (12) is arranged at one end of the rotating block (9) far away from the working disc (2), the second pressing screw (13) is arranged at one end of the rotating block (9) close to the working disc (2), and a second adjusting hole (14) is formed in the pressing plate (10), second screwdown screw rod (13) and second regulation hole (14) butt, second regulation hole (14) are passed in clamping screw rod (12), the cover is equipped with supporting spring (15) on second screwdown screw rod (13), supporting spring (15) one end butt is on turning block (9), the one end that turning block (9) were kept away from in supporting spring (15) is connected with gasket (16), one side butt that turning block (9) are close to with holding down plate (10) in gasket (16).
3. The aircraft engine turbine disc lathe fixture as claimed in claim 2, wherein one end of the upper toothed plate (5) facing the lower pressing plate (10) is provided with a plurality of friction convex points (18), and the side surfaces of the upper toothed plate (5) and the lower toothed plate (4) are provided with corresponding scale marks (19).
4. The aircraft engine turbine disc lathe fixture according to claim 3, wherein two sides of the upper toothed plate (5) are provided with abutting screw rods (21), the abutting screw rods (21) are rotatably connected with fine adjustment wheels (20), and one side, close to the upper toothed plate (5), of each fine adjustment wheel (20) is attached to one side of the corresponding upper toothed plate (5) and one side of the corresponding lower toothed plate (4).
5. The lathe clamp for the turbine disc of the aircraft engine as claimed in claim 2, wherein a positioning column (22) is arranged at the center of the circle of the working disc (2).
6. The aircraft engine turbine disc lathe fixture as claimed in claim 4, wherein the datum blocks (17) are six and evenly distributed, the jacking assemblies are three groups and evenly distributed, and the pressing assemblies are four groups and evenly distributed.
7. The lathe clamp for the turbine disc of the aircraft engine as claimed in claim 1, wherein the working disc (2) is provided with an adjusting groove (23), and the adjusting groove (23) is T-shaped.
8. The lathe clamp for the turbine disc of the aircraft engine as claimed in claim 2, wherein the chassis (1) is provided with a plurality of accommodating grooves (24) for accommodating the rotating blocks (9).
9. The aircraft engine turbine disk lathe fixture as claimed in claim 1, wherein a plurality of lifting rings (25) are arranged on the chassis (1), and the plurality of lifting rings (25) are uniformly arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202121801341.0U CN215200712U (en) | 2021-08-03 | 2021-08-03 | Lathe fixture for turbine disc of aircraft engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202121801341.0U CN215200712U (en) | 2021-08-03 | 2021-08-03 | Lathe fixture for turbine disc of aircraft engine |
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CN215200712U true CN215200712U (en) | 2021-12-17 |
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CN202121801341.0U Active CN215200712U (en) | 2021-08-03 | 2021-08-03 | Lathe fixture for turbine disc of aircraft engine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114770146A (en) * | 2022-04-26 | 2022-07-22 | 潜山县九鼎精密机械有限公司 | Automatic positioning clamp of numerical control lathe |
-
2021
- 2021-08-03 CN CN202121801341.0U patent/CN215200712U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114770146A (en) * | 2022-04-26 | 2022-07-22 | 潜山县九鼎精密机械有限公司 | Automatic positioning clamp of numerical control lathe |
CN114770146B (en) * | 2022-04-26 | 2024-05-24 | 潜山县九鼎精密机械有限公司 | Automatic positioning fixture for numerical control lathe |
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