CN110948401A - Adjustable protection device applied to blade finishing - Google Patents
Adjustable protection device applied to blade finishing Download PDFInfo
- Publication number
- CN110948401A CN110948401A CN201911130695.4A CN201911130695A CN110948401A CN 110948401 A CN110948401 A CN 110948401A CN 201911130695 A CN201911130695 A CN 201911130695A CN 110948401 A CN110948401 A CN 110948401A
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- base
- stop lever
- support plate
- air inlet
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Abstract
The invention discloses an adjustable protection device applied to blade finishing, which comprises: base, locating piece, knock pin, guide pillar, spring, extension board I, support, baffle, extension board II, exhaust limit pin, admit air limit pin, puller bolt I, adjustment sheet, puller bolt II, mandrel, bolt. The invention meets the positioning requirement in the process of part processing, and the base 1 is provided with the mechanism for eliminating the positioning clearance, thereby improving the positioning state of the part; the grinding wheel device provides a good abrasive particle impact direction for the part finishing process, reduces functional parts of the device as much as possible, enables a processing part to completely enter a processing area without being interfered by each element of the device, and avoids the condition that abrasive particles cannot impact or impact excessively; the regulating sheet is utilized to adjust the gap between the stop lever and the air inlet and outlet edges of the part, so that the air inlet and outlet edges are effectively protected.
Description
Technical Field
The invention belongs to the field of blade body finishing processing of blades, particularly provides an adjustable protection device applied to blade finishing, and relates to adjustable design of blade air inlet and outlet edge protection and adjustable design of tenon positioning.
Background
The appearance surface quality problem of the blade is mainly represented by: the surface of the part has burrs, fins, uneven edge rounding, unsatisfactory roughness, bump damage on the surface of the part, tool marks, scratches and the like on the surface. At present, the surface quality problem of the parts is solved by mainly adopting finishing processing. Because the air inlet and outlet edges of the blade are weak, the original sharp edge shape of the part can be damaged under the cutting action of abrasive particles in the finishing process. And the parts need stable positioning and necessary rigid support in the equipment, so that effective protection measures are used for improving the surface quality of the parts.
Protection device who uses in traditional finishing, the locating surface is narrow and small, and appears the positioning gap after the part installation, and in the course of working, under the impact of grit, the part state is unstable, and easy pine takes off, and is great to the damage of part to can not realize the clearance adjustable in the aspect of the limit protection of advancing to exhaust, can't effectively block to the grit that slightly thins, therefore, advance to exhaust the quality on limit relatively poor.
Disclosure of Invention
The invention aims to effectively protect the sharp edge part of the edge of the blade, on one hand, guide abrasive particles to remove knife lines after numerical control milling, and improve the surface roughness grade; on the other hand, a correct clamping mode is provided for the part in the finishing equipment so as to obtain a good clamping state.
The invention provides an adjustable protection device applied to blade finishing, which can meet the requirement of accurate and stable positioning of parts and adjust the gap between an air inlet and outlet edge and a stop lever according to the size of abrasive particles so as to effectively protect the edge of a blade.
The invention meets the positioning requirement in the process of part processing, and the base 1 is provided with the mechanism for eliminating the positioning clearance, thereby improving the positioning state of the part; the grinding wheel device provides a good abrasive particle impact direction for the part finishing process, reduces functional parts of the device as much as possible, enables a processing part to completely enter a processing area without being interfered by each element of the device, and avoids the condition that abrasive particles cannot impact or impact excessively; the regulating sheet is utilized to adjust the gap between the stop lever and the air inlet and outlet edges of the part, so that the air inlet and outlet edges are effectively protected.
The technical scheme of the invention is as follows: an adjustable protection device for blade finishing, comprising: the device comprises a base 1, a positioning block 2, a knock pin 3, a guide pillar 4, a spring 5, a support plate I6, a support 7, a baffle plate 8, a support plate II 9, an exhaust side stop lever 10, an air inlet side stop lever 11, a puller bolt I12, an adjusting sheet 13, a puller bolt II 14, a mandrel 15 and a bolt 16;
the mandrel 15 is welded on the lower portion of the base 1, the left side and the right side of the upper portion of the base 1 are provided with inclined plane through holes which are high at the right side and low at the left side, the right side of the base 1 is fixed with a support plate I6, the left side of the base 1 is fixed with a support 7, a spring 5, a jacking pin 3 and a jacking bolt II 14 are sequentially arranged in the inclined plane through holes from the right side to the left side, the right side of the spring 5 is fixed on the support plate I6, the jacking bolt II 14 is fixed on the support 7 and is in threaded connection with the inner wall of the base 1 at the left end of the inclined plane through hole, and; the lower surface of the ejector pin 3 is provided with an anti-rotation sliding groove 3a, and a guide pillar 4 which is matched with the anti-rotation sliding groove 3a of the ejector pin 3 and is used for preventing the axial rotation of the ejector pin 3 is fixed in the base 1; the upper surface of the top pin 3 is a bending surface, the positioning block 2 is fixed on the base 1, an upper hole communicated with the inclined plane through hole is formed in the position, corresponding to the bending surface of the top pin 3, of the upper surface of the base 1, and a tongue-and-groove positioning molded surface is formed among the inner surface of the positioning block 2, the upper hole of the base 1 and the bending surface of the top pin 3; a tenon inlet is formed in the front side of the positioning block 2, and the baffle 8 is fixed on the base 1 and plugged in the tenon inlet;
the upper end and the lower end of the exhaust side retaining rod 10 and the upper end and the lower end of the air inlet side retaining rod 11 are respectively in threaded connection with an adjusting sheet 13, the adjusting sheet 13 is provided with a through hole 13a in the vertical direction, the left end and the right end of the lower surface of the support plate II 9 are provided with guide grooves 9a, the left end and the right end of the support plate II 9 and the upper surface of the base 1 are respectively provided with 2 threaded holes, the size of the through hole 13a is larger than that of the threaded hole, and the upper end and the lower end of the exhaust side retaining rod 10 and the upper end and the lower end of the air inlet side retaining; the middle part of the support plate II 9 is provided with a mounting hole in the vertical direction, and a process boss of the blade leans against the inner circle of the mounting hole of the support plate II 9 through a puller bolt I12; the shapes of the exhaust side stop lever 10 and the air inlet side stop lever 11 correspond to the shapes of the exhaust side and the air inlet side of the blade.
The invention has the following beneficial effects:
the invention improves the stress state of the blade in the finishing process, provides a correct clamping position for the part in the equipment, and obtains a better abrasive particle linear velocity so as to improve the finishing efficiency of the part. Meanwhile, the air inlet and outlet edges of the blade are effectively protected, excessive cutting of parts in the finishing process is avoided, and the processing quality of the parts is improved. In addition, the protective stop lever can be subjected to gap adjustment so as to adapt to the size of the abrasive particles; the bottom surface of the part can be positioned and the height can be adjusted to adapt to individual difference, eliminate positioning clearance and ensure the positioning stability of the part.
Drawings
FIG. 1 is a front perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a front view of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is a schematic structural view of the installation between the adjusting tab 13 and the support plate II 9 in the present invention;
in the figure: 1. a base; 2. positioning blocks; 3. a knock pin; 3a, an anti-rotation chute; 4. a guide post; 5. a spring; 6. a support plate I; 7. a support; 8. a baffle plate; 9. a support plate II; 9a, a guide groove; 10. an exhaust side stop lever; 11. an air inlet side stop lever; 12. jacking the bolt I; 13. a regulating sheet; 13a, a through hole; 14. jacking the bolt II; 15. a mandrel; 16. and (4) bolts.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
1-6, an adjustable protection device for blade finishing, comprising: the device comprises a base 1, a positioning block 2, a knock pin 3, a guide pillar 4, a spring 5, a support plate I6, a support 7, a baffle plate 8, a support plate II 9, an exhaust side stop lever 10, an air inlet side stop lever 11, a puller bolt I12, an adjusting sheet 13, a puller bolt II 14, a mandrel 15 and a bolt 16;
the mandrel 15 is welded on the lower part of the base 1, the left side and the right side of the upper part of the base 1 are provided with inclined plane through holes with the right height and the left height, the right side of the base 1 is fixed with a support plate I6, the left side of the base 1 is fixed with a support 7, a spring 5, a jacking pin 3 and a jacking bolt II 14 are sequentially arranged in the inclined plane through holes from the right side to the left side, the right side of the spring 5 is fixed on the support plate I6, the jacking bolt II 14 is fixed on the support 7 and is in threaded connection with the inner wall of the base 1 at the left end of the inclined plane through hole; the lower surface of the top pin 3 is provided with an anti-rotation sliding groove 3a, and a guide pillar 4 which is matched with the anti-rotation sliding groove 3a of the top pin 3 and is used for preventing the top pin 3 from axially rotating is fixed in the base 1; the upper surface of the top pin 3 is a bending surface, the positioning block 2 is fixed on the base 1, an upper hole communicated with the inclined plane through hole is formed in the position, corresponding to the bending surface of the top pin 3, of the upper surface of the base 1, and a tongue-and-groove positioning molded surface is formed among the inner surface of the positioning block 2, the upper hole of the base 1 and the bending surface of the top pin 3; a tenon inlet is formed in the front side of the positioning block 2, and the baffle 8 is fixed on the base 1 and plugged in the tenon inlet;
the upper end and the lower end of the exhaust side stop lever 10 and the air inlet side stop lever 11 are respectively in threaded connection with an adjusting sheet 13, the adjusting sheet 13 is provided with a through hole 13a in the vertical direction, the left end and the right end of the lower surface of the support plate II 9 are provided with guide grooves 9a, the left end and the right end of the support plate II 9 and the upper surface of the base 1 are respectively provided with 2 threaded holes, the size of the through hole 13a is larger than that of the threaded hole, and the upper end and the lower end of the exhaust side stop lever 10 and the air inlet side stop lever 11 are fixed in the threaded holes of the; a mounting hole in the vertical direction is formed in the middle of the support plate II 9, and a process boss of the blade leans against the inner circle of the mounting hole of the support plate II 9 through a puller bolt I12; the shapes of the exhaust side stop lever 10 and the air inlet side stop lever 11 correspond to the shapes of the exhaust side and the air inlet side of the blade.
The invention mainly realizes the following functions: the tenon of the part is positioned, so that the accuracy of the finishing position of the part is ensured; the auxiliary support of the blade tip is used for ensuring the stability of part processing; the part inlet and exhaust edge and the mould release plate protect and improve the surface quality of the part.
Wherein: the spindle 15 provides the adapter of the device to the apparatus with the space height and the fixed interface required for the machining of the parts. The tenon molded surface formed by the base 1 and the positioning block 2 provides an accurate positioning surface for the blade; the jacking pin 3 is jacked through the jacking bolt II 14, and the gap between the tenon and the positioning surface is eliminated; in the jacking process, the jacking pin 3 moves rightwards in the inclined plane through hole of the base 1, and the spring 5 is pressed; to prevent the pin 3 from deflecting, the pin 3 is provided with anti-rotation runners 3a which must slide in the direction controlled by the guide post 4; in the process of loosening the part, the jacking bolt II 14 is withdrawn, and the spring 5 releases the compression stress, so that the jacking pin 3 is withdrawn. The baffle 8 is fixed on the base 1 through screws to prevent abrasive from entering and damaging the tenon of the part and the positioning surface of the edge plate; the support plate 9 together with the puller bolt i 12 provides a certain rigid support for the blade tip, while the support plate 9 is provided with a guide groove 9a and a mounting threaded hole for an adjusting tab 13 connected with the exhaust side bar 10 and the intake side bar 11. The upper end and the lower end of the exhaust edge stop lever 10 and the air inlet edge stop lever 11 are respectively in threaded connection with an adjusting sheet 13, the installation direction of the adjusting sheet 13 is the moving direction of the exhaust edge stop lever 10 and the air inlet edge stop lever 11, a guide groove 9a of 8mm is formed in the adjusting sheet 13, the gap between an air inlet edge and an air outlet edge and the gap between the exhaust edge stop lever 10 and the air inlet edge stop lever 11 are changed by finely adjusting the adjusting sheet 13, the size of abrasive particles is adapted, and the protection of the air inlet edge and the air outlet edge is realized.
When in use, the concrete operation steps are as follows:
(1) loosening the screws, detaching the baffle plate 8, and sliding the part into the positioning profile of the mortise formed by the base 1 and the positioning block 2; screwing in the puller bolt II 14, eliminating the positioning clearance between the part and the positioning surface by utilizing the ascending inclined surface and the puller pin 3, wherein the puller pin 3 slides along the control direction of the guide post 4 without rotating and compresses the compression spring 5 at the same time; the flap 8 is then screwed to the base 1 to complete the positioning of the part and the protection of the panel portion.
(2) The technical boss of the blade is leaned against the inner circle of the support plate 9 through a puller bolt I12; and adjusting the position of the adjusting sheet 13 according to the size of the abrasive particles, correcting the gaps between the air inlet side stop lever 10, the air exhaust side stop lever 11 and the air inlet and exhaust sides, and fixing the adjusting sheet on the base 1 after the adjustment is finished so as to finish the protection of the air inlet and exhaust sides of the blade.
(3) After finishing processing, loosen puller bolt I12 to lift air inlet side pin 10 and baffle 8 off, return the puller screw of knock pin 3, the automatic roll-off of knock pin 3 through the tension of spring 5, the part is under the action of gravity, automatic downstream, and the clearance appears in the locating surface this moment, can dismantle the part smoothly along tenon location profile.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. An adjustable protection device applied to blade finishing, comprising: the device comprises a base (1), a positioning block (2), a jacking pin (3), a guide pillar (4), a spring (5), a support plate I (6), a support (7), a baffle (8), a support plate II (9), an exhaust side stop lever (10), an air inlet side stop lever (11), a jacking bolt I (12), an adjusting sheet (13), a jacking bolt II (14), a mandrel (15) and a bolt (16);
the mandrel (15) is welded on the lower portion of the base (1), inclined through holes which are high in the right and low in the left are formed in the left side and the right side of the upper portion of the base (1), a support plate I (6) is fixed on the right side of the base (1), a support (7) is fixed on the left side of the base (1), a spring (5), a jacking pin (3) and a jacking bolt II (14) are sequentially arranged in each inclined through hole from the right to the left, the right side of the spring (5) is fixed on the support plate I (6), the jacking bolt II (14) is fixed on the support (7) and is in threaded connection with the inner wall of the base (1) at the left end of each inclined through hole, and the jacking pin (3) is connected between the spring (5) and; the lower surface of the ejector pin (3) is provided with an anti-rotation sliding groove (3a), and a guide pillar (4) which is matched with the anti-rotation sliding groove (3a) of the ejector pin (3) and is used for preventing the axial rotation of the ejector pin (3) is fixed in the base (1); the upper surface of the ejector pin (3) is a bending surface, the positioning block (2) is fixed on the base (1), an upper hole communicated with the inclined plane through hole is formed in the position, corresponding to the bending surface of the ejector pin (3), of the upper surface of the base (1), and a tongue-and-groove positioning molded surface is formed among the inner surface of the positioning block (2), the upper hole of the base (1) and the bending surface of the ejector pin (3); a tenon inlet is formed in the front side of the positioning block (2), and the baffle (8) is fixed on the base (1) and plugged in the tenon inlet;
the upper end and the lower end of the exhaust side stop lever (10) and the upper end and the lower end of the air inlet side stop lever (11) are respectively in threaded connection with an adjusting sheet (13), the adjusting sheet (13) is provided with a through hole (13a) in the vertical direction, the left end and the right end of the lower surface of the support plate II (9) are provided with guide grooves (9a), the left end and the right end of the support plate II (9) and the upper surface of the base (1) are respectively provided with 2 threaded holes, the size of the through hole (13a) is larger than that of the threaded holes, and the upper end and the lower end of the exhaust side stop lever (10) and the upper end and the lower end of the air inlet side stop lever (11) are fixed in; a mounting hole in the vertical direction is formed in the middle of the support plate II (9), and a process boss of the blade leans against the inner circle of the mounting hole of the support plate II (9) through a puller bolt I (12); the shapes of the exhaust edge stop lever (10) and the air inlet edge stop lever (11) correspond to the shapes of the exhaust edge and the air inlet edge of the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130695.4A CN110948401B (en) | 2019-11-19 | 2019-11-19 | Adjustable protection device applied to blade finishing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130695.4A CN110948401B (en) | 2019-11-19 | 2019-11-19 | Adjustable protection device applied to blade finishing |
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| Publication Number | Publication Date |
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| CN110948401A true CN110948401A (en) | 2020-04-03 |
| CN110948401B CN110948401B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911130695.4A Active CN110948401B (en) | 2019-11-19 | 2019-11-19 | Adjustable protection device applied to blade finishing |
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| CN (1) | CN110948401B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001339A (en) * | 2021-03-17 | 2021-06-22 | 中国航发动力股份有限公司 | Turbine blade thermal barrier coating finishing protection device and method |
| CN114107916A (en) * | 2022-01-26 | 2022-03-01 | 北京航空航天大学 | Plating method for keeping blade air film cooling hole smooth |
| CN117161840A (en) * | 2023-11-03 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Rolling polishing and finishing process method for turbine blade with coating and air film holes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001339A (en) * | 2021-03-17 | 2021-06-22 | 中国航发动力股份有限公司 | Turbine blade thermal barrier coating finishing protection device and method |
| CN114107916A (en) * | 2022-01-26 | 2022-03-01 | 北京航空航天大学 | Plating method for keeping blade air film cooling hole smooth |
| CN114107916B (en) * | 2022-01-26 | 2022-04-08 | 北京航空航天大学 | Plating method for keeping blade air film cooling hole smooth |
| CN117161840A (en) * | 2023-11-03 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Rolling polishing and finishing process method for turbine blade with coating and air film holes |
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| CN110948401B (en) | 2021-06-01 |
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