CN220463503U - Blade grinding is with fixed frock - Google Patents

Abstract

The application relates to the technical field of accessory tools for part machining, in particular to a fixing tool for blade grinding machining, which comprises a mounting seat; the fixing part is fixed on the mounting seat, a positioning cavity is formed in the fixing part, and a profiling surface is arranged on the fixing part and used for being attached to the outer side of the curved rib part; the clamping unit is movably connected to the fixing part and used for enabling the curved rib part to move towards one side of the profiling surface; the buckling and pressing body is rotationally connected to the fixing part, and the fixing part is provided with a force application piece which is connected with the buckling and pressing body and used for enabling the force application end of the buckling and pressing body to move towards the profiling surface; the anti-rotation limiting unit is arranged on one side of the curved rib part, which is far away from the buckling body, and is connected with the curved rib part and used for preventing the curved rib part from sliding along the profiling surface towards one side, which is far away from the buckling body; the blade grinding device has the effect of improving the precision grinding quality of the blade.

Description

Blade grinding is with fixed frock

Technical Field

The application relates to the technical field of accessory tools for part machining, in particular to a fixing tool for blade grinding.

Background

With the rapid development of the aviation manufacturing technology in China, an aeroengine is taken as a heart of an airplane and is one of main factors for determining the performance of the airplane, and engine blades are key parts related to the overall performance of the engine, so that accurate and efficient processing belongs to a necessary link in the blade manufacturing process, and the method has important significance for guaranteeing the performance of the aeroengine.

The engine blade is mostly strongly twisted, thin wall, three-dimensional free curved surface, refer to fig. 1, disclosed a cast blade in the prior art, including curved surface rib portion and respectively an organic whole connect in curved surface rib portion length Bian Fang to the tenon tooth portion and the sawtooth portion at opposite ends, when carrying out accurate grinding to a plurality of machined surfaces of tenon tooth portion, because the three-dimensional coordinate system that every point on the curved surface rib portion corresponds is all different, the clamping in-process takes place relatively to twist reverse easily between blade and the frock, leads to the degree of accuracy difficult to control, influences the accurate grinding process quality of blade.

Disclosure of Invention

In order to improve the precision grinding quality of blade, this application provides a blade abrasive machining is with fixed frock.

The application provides a blade abrasive machining adopts following technical scheme with fixed frock:

a fixing tool for blade grinding processing comprises

A mounting base;

the fixing part is fixed on the mounting seat, a positioning cavity is formed in the fixing part, and a profiling surface is arranged on the fixing part and used for being attached to the outer side of the curved rib part;

the clamping unit is movably connected to the fixing part and used for enabling the curved rib part to move towards one side of the profiling surface;

the buckling and pressing body is rotationally connected to the fixing part, and a force application piece is arranged on the fixing part and connected with the buckling and pressing body, so that the force application end of the buckling and pressing body moves towards the profiling surface;

the anti-rotation limiting unit is arranged on one side, far away from the buckling body, of the curved rib part and is connected with the curved rib part and used for preventing the curved rib part from sliding along the profiling surface towards one side, far away from the buckling body.

By adopting the technical scheme, the blade is forced to extend into the positioning cavity, the outer side of the curved rib part is attached to the profiling surface on the fixing part, the force application part applies force to the buckling body at the moment, the buckling body rotates and then applies force to the curved rib part, the anti-rotation limiting unit is matched to prevent the curved rib part from sliding relatively along the profiling surface, the clamping unit is adjusted to enable the curved rib part to be attached to the profiling surface, the blade is fixed, and the processing is started; the blade abrasive machining of design is with fixed frock, be convenient for install the fixed part through the mount pad to can realize with the fixed of lathe workstation, be convenient for install clamping unit, withhold the body and prevent changeing spacing unit through the fixed part, be convenient for support the fastening with curved surface rib portion on the profile modeling face through clamping unit, be convenient for avoid curved surface rib portion to slide along the profile modeling face relatively through withhold the body and prevent changeing spacing unit cooperation, realize the complete spacing of blade, improve the accurate abrasive machining quality of blade.

In a specific embodiment, the clamping unit comprises a rotator, a buckling block, a driving member and a fastening member;

the rotating body is rotationally connected with the fixing part, and the rotating axis of the rotating body is consistent with the rotating axis of the buckling body;

the fastener is arranged on the fixed part and is detachably connected with the rotating body;

the driving piece is arranged on the rotating body, and the driving piece is movably connected with the buckling block and used for enabling the buckling block to move towards the inner side of the curved rib part and be attached.

By adopting the technical scheme, force is applied to the rotating body, the buckling block is driven to move through the driving piece in the rotating process of the rotating body, after the rotating body rotates in place, the position of the rotating body is fixed through the fastening piece, then the driving piece is adjusted, the buckling block moves towards one side of the profiling surface through the driving piece until the buckling block is matched with the profiling surface to fix the curved rib part; the clamping unit of design is convenient for install the driving piece through the rotor to can realize the installation and removal of curved surface rib portion fast, be convenient for support the fastening with curved surface rib portion on the profile modeling face through driving piece and lock piece cooperation, be convenient for fix the rotor through the fastener.

In a specific embodiment, the driving member comprises

The driving bolt is in threaded connection with the rotating body, and one end of the driving bolt is in rotary connection with the buckling block;

the guide rods are connected with the rotating body, the guide rods are axially consistent with the driving bolts, and the buckling blocks are in sliding connection with the guide rods.

Through adopting above-mentioned technical scheme, the driving piece of design is convenient for drive lock piece towards profile modeling face one side motion through drive bolt, is convenient for control the slip direction of lock piece through the guide bar, improves fixed precision.

In a specific embodiment, the fastener comprises

The connecting rod is connected with the fixed part, an open slot is formed in one end of the rotating body, which is far away from the rotating connection part, and the connecting rod can pass through the open slot;

and the fastening bolt is in threaded connection with one end of the connecting rod penetrating through the opening groove.

Through adopting above-mentioned technical scheme, the fastener of design is convenient for realize the fixed and the release of rotor through connecting rod and fastening bolt cooperation.

In a specific implementation manner, one end, far away from the fastening bolt, of the connecting rod is hinged with the fixing portion in a ball mode, and a yielding groove for the connecting rod to rotate is formed in the fixing portion.

Through adopting above-mentioned technical scheme, the design with fixed part ball articulated connecting rod, need not to take off fastening bolt completely and can realize the release of rotor, further improve the efficiency of installing and removing of blade.

In a specific embodiment, the anti-rotation limiting unit comprises

The limiting column is connected with the fixing part, is positioned at the edge of the curved rib part and is abutted with the outer side of the curved rib part;

the second limiting column is in threaded connection with the rotating body and is used for being abutted with one side edge of the curved rib part.

Through adopting above-mentioned technical scheme, the spacing unit of anti-rotation of design can avoid curved surface rib portion to follow profile modeling face relative slip through spacing post, the cooperation of second spacing post and withhold the body.

In a specific embodiment, the force application member comprises

The bolt head is positioned in the through groove and is in threaded connection with the fixing part;

the spring is positioned in the through groove, one end of the spring is abutted with the bolt head, and the other end of the spring is abutted with the buckling body.

Through adopting above-mentioned technical scheme, the application of force spare of design can realize automatic drive through bolt head and spring cooperation and withhold the body rotation and realize the extrusion to curved surface rib portion.

In a specific implementation, a deflector rod is connected to the outer side of the buckling body.

Through adopting above-mentioned technical scheme, the driving lever of design is convenient for drive withhold the body and is kept away from profile modeling face one side motion, realizes the release of blade.

In a specific embodiment, the fixing portion includes

The base body is connected with the mounting seat, the clamping unit is movably connected to the base body, and the buckling body is rotatably connected with the base body;

the imitation body is detachably and fixedly connected with the base body, and the profiling surface is arranged on the imitation body.

Through adopting above-mentioned technical scheme, the fixed part of design is convenient for install imitative body through the base member, is convenient for change after wearing and tearing through the imitative body, reduces replacement cost.

In a specific embodiment, a positioning pin is vertically connected to the contoured body, and an end of the positioning pin away from the contoured body is configured to abut against the bottom wall of the dovetail.

Through adopting above-mentioned technical scheme, the locating pin of design can realize that the vertical direction of blade is spacing to locating pin and the diapire point contact of tenon tooth portion can reduce the positioning error that the hair side caused.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the blade abrasive machining of design is with fixed frock, be convenient for install the fixed part through the mount pad to can realize with the fixed of lathe workstation, be convenient for install clamping unit, withhold the body and prevent changeing spacing unit through the fixed part, be convenient for support the fastening with curved surface rib portion on the profile modeling face through clamping unit, be convenient for avoid curved surface rib portion to slide along the profile modeling face relatively through withhold the body and prevent changeing spacing unit cooperation, realize the complete spacing of blade, improve the accurate abrasive machining quality of blade.

2. The blade abrasive machining of design is with fixed frock, is convenient for install the driving piece through the rotor to can realize the installation and removal of curved surface rib portion fast, be convenient for support the fastening with curved surface rib portion on the profile modeling face through driving piece and lock piece cooperation, be convenient for fix the rotor through the fastener.

3. The blade abrasive machining of design is with fixed frock, can realize that the vertical direction of blade is spacing to locating pin and the diapire point contact of tenon tooth portion can reduce the positioning error that the hair caused.

Drawings

Fig. 1 is a schematic view of a prior art vane.

Fig. 2 is a schematic structural view of a fixing tool for blade grinding in the embodiment of the present application.

Fig. 3 is a schematic plan view of fig. 1.

Fig. 4 is a schematic view of an operating state of an embodiment of the present application.

Fig. 5 is a side view of fig. 4.

Fig. 6 is a schematic plan view of a part of the structure of fig. 4.

Fig. 7 is a partial schematic view of the structure of fig. 6.

Fig. 8 is a rear view of fig. 4.

Fig. 9 is a schematic three-dimensional structure of fig. 6.

Reference numerals illustrate: 01. curved rib portions; 02. a tenon tooth portion; 03. a serration part; 1. a mounting base; 2. a fixing part; 21. a base; 211. a positioning cavity; 212. a through hole; 213. a through groove; 22. a simulated body; 221. profiling surface; 3. a clamping unit; 31. a rotating body; 311. an open slot; 32. a buckling block; 33. a driving member; 331. driving a bolt; 332. a guide rod; 34. a fastener; 341. a connecting rod; 342. a fastening bolt; 4. a buckling body; 5. a force application member; 51. a bolt head; 52. a spring; 6. an anti-rotation limit unit; 61. a limit column; 62. the second limit column; 7. a deflector rod; 8. a positioning pin; 9. and (5) abutting the bolt.

Detailed Description

The present application is described in further detail below in conjunction with figures 2-9.

The embodiment of the application discloses fixed frock is used in blade abrasive machining.

Referring to fig. 2, a fixing tool for grinding a blade includes a mounting seat 1 and a fixing portion 2, wherein a plurality of countersunk bolt holes are formed in the mounting seat 1, the fixing portion 2 is located above the mounting seat 1, the fixing portion 2 includes a base 21 and a simulated body 22, the mounting seat 1 and the base 21 can be integrally connected, welded or detachably and fixedly connected through bolts, and in the embodiment, the fixing tool is preferably connected through bolts; the base 21 is provided with a positioning cavity 211, so that the base 21 is U-shaped, the profiling body 22 is detachably and fixedly connected to the base 21 through bolts, the profiling body 22 is positioned in the positioning cavity 211, and the working surface of the profiling body 22 is a profiling surface 221 which is matched with the shape of the curved rib part 01.

Referring to fig. 2 and 3, in order to facilitate limiting the displacement of the blade along the Z-axis direction, the profiled body 22 is inserted with a positioning pin 8, the positioning pin 8 is vertically arranged, and one end of the positioning pin 8 away from the profiled body 22 is used for abutting against the bottom wall of the tenon tooth portion 02; in order to avoid interference between the sawtooth part 03 and the base 21, the base 21 is provided with a through hole 212, the position of the through hole 212 corresponds to that of the sawtooth part 03, and after the blade is clamped, the through hole 212 is convenient for taking points on the sawtooth part 03 to carry out three-dimensional modeling.

Referring to fig. 4, in order to facilitate the fitting of the curved rib portion 01 to the profiling surface 221, the apparatus further comprises a clamping unit 3, the clamping unit 3 comprises a rotating body 31, a buckling block 32, a driving member 33 and a fastening member 34, one end of the rotating body 31 is rotationally connected with the base 21 through a rotating shaft, the axial direction of the rotating shaft is consistent with the axial direction of the positioning pin 8, the driving member 33 is mounted on the rotating body 31, the driving member 33 is connected with the buckling block 32 and is used for driving the buckling block 32 to move towards the profiling surface 221, the fastening member 34 is mounted on the base 21, and the fastening member 34 is connected with the rotating body 31 and is used for fixing the rotating body 31.

Referring to fig. 4 and 5, the fastener 34 includes a connecting rod 341 and a fastening bolt 342, the connecting rod 341 is connected with the base 21, an open slot 311 is formed in an end of the rotating body 31, which is far away from the rotating shaft, and the opening slot 311 is formed in an end of the rotating body 31, after the rotating body 31 rotates around the rotating shaft, the connecting rod 341 passes through the open slot 311, the fastening bolt 342 is in threaded connection with the connecting rod 341, a step slot is formed in the base 21, and the fastening bolt 342 and the connecting rod 341 cooperate to enable the rotating body 31 to be matched with the step slot to achieve position fixing.

Referring to fig. 5, in order to facilitate reducing the number of turns of the fastening bolt 342, the rotator 31 is rapidly fixed and released, one end of the connecting rod 341 away from the fastening bolt 342 is spherically hinged with the base 21, and a relief groove for the rotation of the connecting rod 341 is formed in the base 21.

Referring to fig. 6, the driving member 33 includes a driving bolt 331 and at least two guide rods 332, the driving bolt 331 is in threaded connection with the rotating body 31, a T-shaped groove is formed on one side of the buckling block 32 away from the profiling surface 221, and an annular groove adapted to the T-shaped groove is formed on a screw section of the driving bolt 331, so that the driving bolt 331 and the buckling block 32 are in rotational connection; the guide rod 332 is fixedly inserted into the rotator 31, the axial direction of the guide rod 332 is consistent with the axial direction of the driving bolt 331, the guide rod 332 passes through the buckling block 32, the buckling block 32 is slidably connected with the guide rod 332, and one side of the buckling block 32 facing the profiling surface 221 is matched with the inner side shape of the curved rib part 01.

Referring to fig. 7, in order to further define that the curved rib portion 01 slides relatively along the abutting surface 221, the device further includes a buckling body 4 and a force application member 5, the buckling body 4 is rotationally connected with the base 21 through a pin shaft, the axial direction of the pin shaft is consistent with the axial direction of the positioning pin 8, the force application member 5 is connected to the base 21, and the force application member 5 is used for driving the buckling body 4 to rotate around the pin shaft, so that the force application end of the buckling body 4 moves towards one side of the profiling surface 221.

Referring to fig. 7 and 8, the force application member 5 includes a bolt head 51 and a spring 52, the base 21 is provided with a through groove 213, the bolt head 51 is located in the through groove 213, the bolt head 51 is in threaded connection with the base 21, the spring 52 is located in the through groove 213, one end of the spring 52 is in contact with the bolt head 51, and the other end is in contact with the pressing body 4.

Referring to fig. 7, in order to facilitate release of the blade, a lever 7 is welded to the outer side of the buckling body 4, and in order to facilitate fixing of the buckling body 4, a tightening bolt 9 is screwed to the base 21, and the tightening bolt 9 can be abutted against the buckling body 4.

Referring to fig. 9, the anti-rotation limiting unit 6 further includes an anti-rotation limiting unit 6, the anti-rotation limiting unit 6 includes a limiting post 61 and a second limiting post 62, the limiting post 61 is fixedly inserted into the base 21, the limiting post 61 is disposed at an edge of the curved rib 01 and is abutted with an outer side of the curved rib 01, the second limiting post 62 is in threaded connection with the rotating body 31, and the second limiting post 62 is abutted with a side edge of the curved rib 01, which is far away from the buckling body 4.

The implementation principle of the fixing tool for blade grinding processing in the embodiment of the application is as follows: the blade is forced to extend into the positioning cavity 211, at this time, the positioning pin 8 is abutted against the bottom wall of the tenon tooth portion 02, the outer side of the curved rib portion 01 is abutted against the profiling surface 221 on the fixing portion 2, at this time, the spring 52 is forced to the buckling body 4, the buckling body 4 is forced to the curved rib portion 01 after rotating, the limiting post 61 is matched to prevent the curved rib portion 01 from sliding relatively along the profiling surface 221, and then the buckling body 4 is fixed by abutting the bolt 9.

Then, the force is applied to the rotating body 31 to enable the rotating body 31 to be abutted against the step groove, then the force is applied to the connecting rod 341 to enable the connecting rod 341 to pass through the opening groove 311, then the fastening bolt 342 is twisted to enable the rotating body 31 to be fixed with the base 21, then the driving bolt 331 is twisted, the driving bolt 331 drives the buckling block 32 to move towards one side of the profiling surface 221 along the axial direction of the guide rod 332, the curved rib part 01 is abutted against the profiling surface 221, the second limiting rod is twisted, the second limiting rod is abutted against one side of the curved rib part 01, and the blade is fixed, so that the processing is started.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a blade abrasive machining is with fixed frock which characterized in that: comprising

A mounting base (1);

the fixing part (2), the fixing part (2) is fixed on the mounting seat (1), a positioning cavity (211) is formed in the fixing part (2), and a profiling surface (221) is arranged on the fixing part (2) and is used for being attached to the outer side of the curved rib part (01);

the clamping unit (3) is movably connected to the fixed part (2) and is used for enabling the curved rib part (01) to move towards one side of the profiling surface (221);

the buckling body (4) is rotationally connected to the fixing part (2), a force application piece (5) is arranged on the fixing part (2), and the force application piece (5) is connected with the buckling body (4) and used for enabling a force application end of the buckling body (4) to move towards the profiling surface (221);

prevent changeing spacing unit (6), prevent changeing spacing unit (6) set up in curved surface rib portion (01) keep away from withhold body (4) one side, just prevent changeing spacing unit (6) and curved surface rib portion (01) and be connected for prevent curved surface rib portion (01) follow profile modeling face (221) orientation is kept away from withhold body (4) one side and slide.

2. The blade grinding fixing tool according to claim 1, wherein: the clamping unit (3) comprises a rotating body (31), a buckling block (32), a driving piece (33) and a fastening piece (34);

the rotating body (31) is rotationally connected with the fixed part (2), and the rotating axis of the rotating body (31) is consistent with the rotating axis of the buckling body (4);

the fastener (34) is mounted on the fixed part (2), and the fastener (34) is detachably connected with the rotating body (31);

the driving piece (33) is mounted on the rotating body (31), and the driving piece (33) is movably connected with the buckling block (32) and used for enabling the buckling block (32) to move towards the inner side of the curved rib part (01) and be attached.

3. The blade grinding fixing tool according to claim 2, wherein: the driving member (33) comprises

The driving bolt (331), the driving bolt (331) is in threaded connection with the rotating body (31), and one end of the driving bolt (331) is in rotary connection with the buckling block (32);

the guide rods (332) are connected with the rotating body (31), the guide rods (332) are axially consistent with the driving bolts (331), and the buckling blocks (32) are slidably connected with the guide rods (332).

4. The blade grinding fixing tool according to claim 2, wherein: the fastener (34) includes

The connecting rod (341) is connected with the fixed part (2), an open slot (311) is formed in one end, far away from the rotating connection part, of the rotating body (31), and the connecting rod (341) can penetrate through the open slot (311);

and a fastening bolt (342), wherein the fastening bolt (342) is in threaded connection with one end of the connecting rod (341) penetrating through the opening groove (311).

5. The blade grinding fixture according to claim 4, wherein: one end of the connecting rod (341) far away from the fastening bolt (342) is in spherical hinge connection with the fixing part (2), and a yielding groove for the connecting rod (341) to rotate is formed in the fixing part (2).

6. The blade grinding fixing tool according to claim 2, wherein: the anti-rotation limiting unit (6) comprises

The limiting column (61) is connected with the fixed part (2), and the limiting column (61) is positioned at the edge of the curved rib part (01) and is abutted with the outer side of the curved rib part (01);

the second limiting column (62), the second limiting column (62) is connected to the rotator (31) in a threaded mode, and the second limiting column (62) is used for being abutted to one side edge of the curved rib portion (01).

7. The blade grinding fixing tool according to claim 1, wherein: the force application member (5) comprises

The bolt head (51) is provided with a through groove (213) on the fixing part (2), the bolt head (51) is positioned in the through groove (213), and the bolt head (51) is in threaded connection with the fixing part (2);

and a spring (52), wherein the spring (52) is positioned in the through groove (213), one end of the spring (52) is abutted with the bolt head (51), and the other end is abutted with the buckling body (4).

8. The blade grinding fixture according to claim 7, wherein: the outer side of the buckling body (4) is connected with a deflector rod (7).

9. The blade grinding fixing tool according to claim 1, wherein: the fixing part (2) comprises

The base body (21), the base body (21) is connected with the mounting seat (1), the clamping unit (3) is movably connected to the base body (21), and the buckling body (4) is rotationally connected with the base body (21);

the copying body (22) is detachably and fixedly connected with the base body (21), and the copying surface (221) is arranged on the copying body (22).

10. The blade grinding fixture according to claim 9, wherein: and a locating pin (8) is vertically connected to the profiling body (22), and one end, away from the profiling body (22), of the locating pin (8) is used for being abutted with the bottom wall of the tenon tooth part (02).