CN217890641U - Universal polishing and grinding rotary clamp for nuclear power hollow blade - Google Patents
Universal polishing and grinding rotary clamp for nuclear power hollow blade Download PDFInfo
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- CN217890641U CN217890641U CN202221664011.6U CN202221664011U CN217890641U CN 217890641 U CN217890641 U CN 217890641U CN 202221664011 U CN202221664011 U CN 202221664011U CN 217890641 U CN217890641 U CN 217890641U
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Abstract
The utility model provides a hollow blade's of nuclear power general polishing and grinding rotary fixture, it can be used for the clamping of multiple hollow blade through changing a small amount of parts, and the clamping is stable, convenient to use. The blade back arc type surface pressing mechanism comprises a bottom plate, wherein a blade back arc type surface positioning seat, a blade inner arc type surface pressing mechanism and a holding mechanism are arranged on the bottom plate; the blade inner arc profile pressing mechanism comprises fixed blocks, a pressing screw rod, guide plates, pressing sliding blocks and an inner arc profile swinging pressing seat, the fixed blocks are connected with the bottom plate, the pressing screw rod is in threaded connection with the fixed blocks, the end parts of the pressing screw rod are connected with the pressing sliding blocks, the pressing sliding blocks are located between the guide plates, the pressing sliding blocks are rotatably connected with one arc-shaped ends of the inner arc profile swinging pressing seat through pin shafts, the middle of the other ends of the inner arc profile swinging pressing seat is hollowed out, and the two ends of the inner arc profile swinging pressing seat are provided with pressing surfaces corresponding to the shape of the inner arc profiles of the blades; the holding mechanism is used for pressing the steam outlet edge of the hollow blade.
Description
Technical Field
The utility model relates to a blade processing technology field specifically is a hollow blade's of nuclear power general polishing and grinding rotary fixture.
Background
As shown in figure 1, the hollow blade is characterized in that the profile of the hollow blade is mostly curved, the profile processing mode is peeling and milling, in order to meet the requirements of roughness, smoothness and appearance of the profile of the blade, the profile needs to be polished by a machine, but the hollow blade only has the profile without a root cap, which is equivalent to no accurate clamping reference, so that stable and reliable clamping is a technical problem, and special tooling needs to be designed for the blade during processing, thereby increasing the production cost.
SUMMERY OF THE UTILITY MODEL
To hollow blade clamping difficulty, lack general frock and lead to the problem that manufacturing cost increased, the utility model provides a nuclear power hollow blade's general polishing and grinding rotary fixture, it can be used for the clamping of multiple hollow blade through changing a small amount of parts, and the clamping is stable, convenient to use.
The technical scheme is as follows: the utility model provides a hollow blade's of nuclear power general polishing and grinding gyration anchor clamps, its includes the bottom plate, install hollow blade hold-down mechanism on the bottom plate, its characterized in that: the hollow blade pressing mechanism comprises a blade back arc molded surface positioning seat, a blade inner arc molded surface pressing mechanism and a holding mechanism;
the blade back arc molded surface positioning seat is used for positioning a blade back arc molded surface, the middle of the blade back arc molded surface positioning seat is hollowed out, and two ends of the blade back arc molded surface positioning seat are provided with pressing surfaces corresponding to the shape of the blade back arc molded surface;
the blade inner arc profile pressing mechanism comprises a fixed block, a pressing screw rod, guide plates, a pressing sliding block and an inner arc profile swinging pressing seat, the fixed block is connected with the bottom plate, the pressing screw rod is in threaded connection with the fixed block, the end part of the pressing sliding block is connected with the pressing sliding block, the pressing sliding block is located between the guide plates, the pressing sliding block is rotatably connected with one arc-shaped end of the inner arc profile swinging pressing seat through a pin shaft, the middle of the other end of the inner arc profile swinging pressing seat is hollowed, and two ends of the pressing sliding block are provided with pressing surfaces corresponding to the shape of the inner arc profile of the blade;
the holding mechanism is used for pressing the steam outlet edge of the hollow blade.
It is further characterized in that:
the axial positioning block is used for positioning a notch on the back arc of the hollow blade and is detachably connected with the bottom plate;
the guide plate is L-shaped, a guide groove is formed between the L-shaped guide plate and the bottom plate, and the guide blocks protruding from two sides of the pressing slide block are positioned in the guide groove;
the pressing sliding block is also provided with a T-shaped connecting groove I, and the end part of the pressing screw rod is provided with a connecting bulge and is connected with the sliding block through the connecting groove I;
the pressing sliding block is also provided with a second connecting groove, one end of the inner arc-shaped surface swinging pressing seat is provided with an arc-shaped connecting block, and the connecting block extends into the second connecting groove and is connected with the pin shaft;
the holding mechanism comprises a mounting seat, a mounting groove is formed in the mounting seat, a screw rod is installed in the mounting groove, and the floating holding pressing block which is arranged oppositely extends into the mounting groove and is respectively connected with the screw rod in a threaded mode.
After the structure is adopted, when the hollow blade needs to be processed, the blade back arc profile is placed on the blade back arc profile positioning seat, the inner arc profile is swung by the control compression screw to compress the pressing seat on the blade inner arc profile, under the action of compression force, the pressing seat is contacted with the inner arc of the hollow blade to find a more fitting mode, small-range rotation can be automatically generated, the clamping is more stable, then the blade is further subjected to floating compression on the steam outlet edge through the clamping mechanism, the clamping of the hollow blade can be completed, when products of other specifications need to be used, only the corresponding inner arc profile swinging pressing seat needs to be replaced, the blade back arc profile positioning seat can be replaced, the work that the original point of the clamp needs to be repeatedly measured by workers for repeatedly switching the clamp back and forth by a machine tool is saved, and the processing efficiency is improved.
Drawings
FIG. 1 is a schematic view of a hollow blade structure;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of an inner arc profile swing pressing seat;
fig. 4 is a schematic structural diagram of the clasping mechanism.
Detailed Description
As shown in fig. 2, the universal polishing and grinding rotary fixture for the nuclear power hollow blade comprises a base plate 1, wherein a hollow blade pressing mechanism is installed on the base plate 1, and the hollow blade pressing mechanism comprises a blade back arc molded surface positioning seat 2, a blade inner arc molded surface pressing mechanism 3 and a holding mechanism 4. The blade back arc molded surface positioning seat 2 is used for positioning the blade back arc molded surface, the middle of the blade back arc molded surface positioning seat is hollowed out, and two ends of the blade back arc molded surface positioning seat are provided with pressing surfaces corresponding to the shape of the blade back arc molded surface. Blade inner arc profile hold-down mechanism 3 includes fixed block 31, compression screw 32, deflector 33, compress tightly slider 34, inner arc profile swing compresses tightly seat 35, fixed block 31 is connected with bottom plate 1, compression screw 32 and fixed block 31 threaded connection and tip and compress tightly slider 34 and be connected, compress tightly slider 34 and be located between the deflector 33, compress tightly slider 34 and swing through round pin axle 36 and inner arc profile and compress tightly the curved one end rotation connection of seat 35, inner arc profile swing compresses tightly the middle fretwork of seat 35's the other end and its both ends have with the corresponding face that compresses tightly of blade inner arc profile shape. The holding mechanism 4 is used for pressing the steam outlet edge of the hollow blade.
In addition, the axial positioning device also comprises an axial positioning block 5 used for positioning a notch on the back arc of the hollow blade, and the axial positioning block 5 is detachably connected with the bottom plate 1.
Regarding the blade inner arc profile pressing mechanism 3, the guide plate 33 is L-shaped, a guide groove is formed between the L-shaped guide plate 33 and the bottom plate 1, and the guide blocks protruding from the two sides of the pressing slide block 34 are positioned in the guide groove, so as to effectively guide the pressing slide block 34. The pressing sliding block 34 is also provided with a T-shaped connecting groove I37, and the end part of the pressing screw rod 32 is provided with a connecting bulge and is connected with the sliding block 34 through the connecting groove I37; pressing slider 34 is still seted up the connecting groove two 38 on, combines fig. 3, and the one end that interior arc profile swing pressed seat 35 has curved connecting block 351, and connecting block 351 stretches into in the connecting groove two 38 and is connected with round pin axle 36.
As shown in fig. 4, the clasping mechanism includes a mounting seat 41, a mounting groove 42 is provided on the mounting seat 41, a screw rod is installed in the mounting groove 42, a floating clasping press block 43 which is arranged oppositely extends into the mounting groove 42 and is respectively connected with the corresponding screw rod threads, and the press block can be moved to press the blades by rotating the screw rod.
The back arc-shaped surface positioning seat can be connected with the bottom plate through a key groove, a positioning seat supporting plate and a screw, the steam inlet and outlet edges of the blade are respectively positioned in a hollow-out design mode, and the circumferential rotation of the blade is limited; the inner arc profile swinging pressing seat is connected with the pressing sliding block through a pin, the pressing sliding block can slide between guide plates arranged on the bottom plate through rotating the pressing screw rod, so that the hollow blade is pressed, the inner arc profile swinging pressing seat also adopts a design mode of hollowing out the middle, and clamping interference caused by overlarge contact area is prevented; the holding mechanism is used for assisting in compressing the steam outlet edge of the hollow blade with the large chord width in a floating mode, aims to enhance clamping rigidity and prevent polishing and grinding vibration, and has the advantages of floating adjustability and no over-positioning.
When the hollow blade is used, the blade is placed on the back arc molded surface positioning seat, so that the back arc of the hollow blade is contacted and attached with the positioning surface; the pressing screw is rotated to drive the pressing slide block to slide in the guide plate, so that the inner arc molded surface swings the pressing seat to press the hollow blade, and the pressing seat automatically rotates to find a more fitting mode after contacting with the inner arc of the hollow blade under the action of the pressing force; adjusting the floating clasping mechanism to float and press the steam outlet edge of the blade; polishing and grinding the blade on a machine; after polishing and grinding are finished, loosening the floating holding mechanism and loosening the inner arc molded surface pressing mechanism; taking out the hollow blade and taking the hollow blade off the machine. When other products need to be processed, the inner arc molded surface swing pressing seat and the blade back arc molded surface positioning seat are replaced, the whole fixture is still positioned on a machine tool, and the fixture is not required to be detached and is convenient to use.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a universal polishing and grinding rotary clamp for nuclear power hollow blade, which comprises a base plate, install hollow blade hold-down mechanism on the base plate, its characterized in that: the hollow blade pressing mechanism comprises a blade back arc molded surface positioning seat, a blade inner arc molded surface pressing mechanism and a holding mechanism;
the blade back arc molded surface positioning seat is used for positioning a blade back arc molded surface, the middle of the blade back arc molded surface positioning seat is hollowed out, and two ends of the blade back arc molded surface positioning seat are provided with pressing surfaces corresponding to the shape of the blade back arc molded surface;
the blade inner arc profile pressing mechanism comprises fixed blocks, a pressing screw rod, guide plates, a pressing sliding block and an inner arc profile swinging pressing seat, the fixed blocks are connected with the bottom plate, the pressing screw rod is in threaded connection with the fixed blocks, the end parts of the pressing screw rod are connected with the pressing sliding block, the pressing sliding block is located between the guide plates, the pressing sliding block is rotatably connected with one arc-shaped end of the inner arc profile swinging pressing seat through a pin shaft, the middle of the other end of the inner arc profile swinging pressing seat is hollow, and the two ends of the inner arc profile swinging pressing seat are provided with pressing surfaces corresponding to the shape of the blade inner arc profile;
the holding mechanism is used for pressing the steam outlet edge of the hollow blade.
2. The universal polishing and grinding rotary clamp for the nuclear power hollow blade of claim 1, which is characterized in that: the axial positioning block is used for positioning a notch on the back arc of the hollow blade and is detachably connected with the bottom plate.
3. The universal polishing and grinding rotary clamp for the nuclear power hollow blade of claim 1, which is characterized in that: the guide plate is L-shaped, a guide groove is formed between the L-shaped guide plate and the bottom plate, and the guide blocks protruding from two sides of the pressing slide block are located in the guide groove.
4. The universal polishing and grinding rotary clamp for the nuclear power hollow blade as claimed in claim 3, is characterized in that: the pressing sliding block is further provided with a T-shaped first connecting groove, and the end part of the pressing screw is provided with a connecting bulge and is connected with the sliding block through the first connecting groove.
5. The universal polishing and grinding rotary clamp for the nuclear power hollow blade of claim 4, characterized in that: the pressing sliding block is further provided with a second connecting groove, one end of the inner arc molded surface swinging pressing base is provided with an arc-shaped connecting block, and the connecting block extends into the second connecting groove and is connected with the pin shaft.
6. The universal polishing and grinding rotary clamp for the nuclear power hollow blade as claimed in any one of claims 1 to 5, wherein: the holding mechanism comprises a mounting seat, a mounting groove is formed in the mounting seat, a screw rod is installed in the mounting groove, and the floating holding pressing block which is arranged oppositely extends into the mounting groove and is respectively connected with the screw rod in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221664011.6U CN217890641U (en) | 2022-06-30 | 2022-06-30 | Universal polishing and grinding rotary clamp for nuclear power hollow blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221664011.6U CN217890641U (en) | 2022-06-30 | 2022-06-30 | Universal polishing and grinding rotary clamp for nuclear power hollow blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217890641U true CN217890641U (en) | 2022-11-25 |
Family
ID=84132364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221664011.6U Active CN217890641U (en) | 2022-06-30 | 2022-06-30 | Universal polishing and grinding rotary clamp for nuclear power hollow blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217890641U (en) |
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2022
- 2022-06-30 CN CN202221664011.6U patent/CN217890641U/en active Active
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