CN108581346B - Hollow blade anchor clamps for brazing - Google Patents
Hollow blade anchor clamps for brazing Download PDFInfo
- Publication number
- CN108581346B CN108581346B CN201810922522.5A CN201810922522A CN108581346B CN 108581346 B CN108581346 B CN 108581346B CN 201810922522 A CN201810922522 A CN 201810922522A CN 108581346 B CN108581346 B CN 108581346B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- seat
- brazing
- blade
- upper pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a fixture for brazing hollow blades, which comprises: and the lower support is used for positioning and supporting the blade body and the shaft neck. Still include and press the seat on for with the lid close the upper surface laminating of the apron on the blade body in order to compress tightly apron and blade body under the exogenic action, press on be used for on the seat with the upper surface laminating of apron on be equipped with many and dodge the groove, many dodge the groove and correspond many runners setting respectively, in order to be used for avoiding on the apron corresponding runner department by the pressure. The locking component is used for locking the lower support, the upper pressing seat and the hollow blade which is positioned and clamped between the lower support and the upper pressing seat into a whole. The fixture for brazing the hollow blade can effectively prevent the suspended part of the cover plate corresponding to the runner from being crushed when the upper pressing seat presses the cover plate, so that the runner is prevented from being crushed, and the technical problem that the runner of the hollow blade is easy to crush by a pressing plate in the prior art is solved.
Description
Technical Field
The invention relates to the field of turboshaft engines, in particular to a fixture for brazing hollow blades.
Background
The beryllium-cobalt-copper hollow blade is a hollow blade formed by connecting a blade body, a cover plate and a shaft neck by brazing, and is shown in figures 1 and 2. The blade body and the cover plate are of a spatial curved surface structure, the brazing connection surface of the blade body and the cover plate is a curved surface, the brazed beryllium-cobalt-copper hollow blade needs to meet the brazing quality acceptance requirement and the related technical requirements, and meanwhile, the profile size requirement of parts needs to be ensured.
In the prior art, a fixture is used for clamping a beryllium-cobalt-copper hollow blade to be brazed, the fixture mainly comprises a supporting base and a pressing plate, the hollow blade is positioned on the supporting base through a blade body and a joint bearing of the supporting base, the pressing plate is of an integral structure, and a cover plate and the blade body are pressed tightly through the joint of the pressing plate and the cover plate. The positioning precision of the support base to the hollow blade is poor, and the journal of the hollow blade is easy to deflect after welding; the clamp plate is easy to press partially, over-press or not in place when pressing the cover plate, so that the air passage of the hollow blade is easy to collapse, the hollow blade is large in deformation in the welding process, the clamp is easy to be welded with the hollow blade into a whole, the quality of the welded hollow blade is directly influenced, and the hollow blade is low in brazing yield.
Disclosure of Invention
The invention provides a fixture for brazing a hollow blade, which aims to solve the technical problems that when the existing fixture is used for clamping the hollow blade, the blade positioning precision is poor, a journal is easy to deflect after welding, an air passage in the blade is easy to collapse and the blade deforms greatly after welding.
The technical scheme adopted by the invention is as follows:
the utility model provides a hollow blade anchor clamps for it is brazed to clamp, location treat the hollow blade brazed, hollow blade by the blade body, install the axle journal on blade body axle head excircle, cover the apron on the blade body back of the leaf and constitute, processing has many runners on the blade body, anchor clamps include: the lower support is used for positioning and supporting the blade body and the shaft neck; the upper pressing seat is attached to the upper surface of the cover plate covered on the blade body so as to tightly press the cover plate and the blade body under the action of external force, and a plurality of avoiding grooves are formed in an upper pressing surface, which is used for being attached to the upper surface of the cover plate, of the upper pressing seat and are respectively arranged corresponding to the plurality of flow channels so as to prevent the corresponding flow channels on the cover plate from being collapsed; and the locking component is used for locking the lower support, the upper pressure seat and the hollow blade which is positioned and clamped between the lower support and the upper pressure seat into a whole.
Further, the shape of the avoiding groove is matched with the shape of the correspondingly arranged flow passage.
Further, the upper pressure seat comprises an upper pressure plate and a pressure block which is arranged on the lower surface of the upper pressure plate and protrudes towards the hollow blade; the lower surface of the pressing block is an upper pressing surface.
Further, the projection of the pressing block on the horizontal plane is superposed with the projection of the upper pressing surface on the horizontal plane; the shape of the upper pressing surface is similar to that of the upper surface of the cover plate, and the size of the upper pressing surface is smaller than that of the upper surface of the cover plate.
Further, the distance between the outer edge of the upper pressing surface and the outer edge of the upper surface of the cover plate is 0.3-0.6 mm.
Furthermore, an included angle between the side wall of the pressing block and the upper pressing surface is an acute angle.
Furthermore, the lower support comprises a lower support plate, and a blade body supporting boss group and a shaft neck supporting boss group are arranged on the lower support plate, wherein the blade body supporting boss group is used for supporting and positioning the blade body respectively, and the shaft neck supporting boss group is used for supporting the shaft neck respectively.
Furthermore, the blade body supporting boss group comprises a first boss, a second boss and a third boss, wherein the first boss is used for being attached to the lower surface of the blade body so as to support and position the blade body, and the second boss and the third boss are respectively arranged at two ends of the first boss and are used for respectively supporting and positioning shaft ends at two ends of the blade body; the shaft neck supporting boss group comprises a fourth boss and a fifth boss which are used for respectively supporting a shaft neck to prevent the shaft neck from deflecting, and the fourth boss and the fifth boss are positioned at one end of the hollow blade and are arranged at intervals along the axial direction of the hollow blade.
Further, the fixture further comprises a positioning member for positioning the position of the upper press seat relative to the lower support, and the positioning member comprises: a plurality of groups of positioning holes correspondingly arranged on the lower support and the upper pressure seat, and a plurality of positioning pin shafts which penetrate through the positioning holes and are used for positioning the position of the upper pressure seat relative to the lower support.
Furthermore, the locking component comprises a plurality of locking clamps, and each locking clamp is provided with a locking frame for penetrating a lower support, an upper pressing seat and a hollow blade positioned and clamped between the lower support and the upper pressing seat; each locking clamp is connected with a plurality of locking screws, and each locking screw is used for abutting against the upper pressing seat so as to tightly abut against the upper pressing seat, the hollow blade and the lower support in the locking frame.
The invention has the following beneficial effects:
the fixture for brazing the hollow blade comprises the lower support, wherein the lower support can be used for positioning and supporting the blade body and positioning and supporting the journal connected to the outer circle of the shaft end of the blade body, so that the positioning accuracy of the assembled hollow blade is high, the quality of the hollow blade after being welded can be improved, the disqualification rate of the hollow blade after being brazed is reduced, in addition, the journal after being welded can be prevented from deviating due to the fact that the lower support is used for positioning and supporting the journal, and the technical problem that the journal after being welded of the hollow blade in the prior art deviates is solved; the clamp also comprises an upper pressing seat, wherein the upper pressing seat not only presses the cover plate and the blade body under the action of external force through the attachment with the upper surface of the cover plate, but also is more important, a plurality of avoiding grooves are arranged on the upper pressing surface, which is used for the attachment with the cover plate, of the upper pressing seat, and the avoiding grooves are respectively arranged corresponding to the plurality of flow channels, as shown in the drawing and the drawing, so that the phenomenon that the suspended part of the cover plate, which corresponds to the flow channels, is pressed down when the upper pressing seat presses the cover plate can be effectively avoided, the flow channels are further prevented from being pressed down, and the technical problem that the hollow blade flow channels are easily pressed down; the clamp also comprises a locking component which is used for locking the positioned and assembled lower support, the hollow blade and the upper pressure seat into a whole, so that the deformation of the hollow blade in the brazing process can be effectively reduced, the quality of the hollow blade after being welded is further improved, and the brazing failure rate is reduced.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of the space of a hollow blade to be brazed;
FIG. 2 is a schematic view of the spatial structure of an assembled hollow blade;
FIG. 3 is a schematic view of a space structure of a hollow blade brazing jig for clamping the hollow blade according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view of the space explosion arrangement of FIG. 3;
FIG. 5 is a schematic view of the spatial arrangement of the hollow vane positioned between the upper pressure seat and the lower support;
FIG. 6 is a schematic view of the spatial structure of the hollow blade positioned and supported on the lower support;
FIG. 7 is a schematic view of the spatial structure of the lower support in FIG. 6;
FIG. 8 is a schematic view of the spatial structure of the hollow blade after being positioned with the upper press base;
FIG. 9 is an enlarged partial schematic view of FIG. 8 at A;
FIG. 10 is a schematic view of the spatial arrangement of the hollow vane positioned between the lower support and the upper pressure seat;
FIG. 11 is a schematic cross-sectional view taken along line C-C of FIG. 10;
fig. 12 is a schematic space structure diagram of the upper press base in fig. 3.
Description of the figures
10. A hollow blade; 11. a leaf body; 110. a flow channel; 12. a journal; 13. a cover plate; 20. a lower support; 21. a lower support plate; 22. a blade body supporting boss group; 221. a first boss; 222. a second boss; 223. a third boss; 23. a journal bearing boss set; 231. a fourth boss; 232. a fifth boss; 30. an upper pressing seat; 301. pressing the dough; 302. an avoidance groove; 31. an upper pressure plate; 32. briquetting; 40. a locking member; 41. a locking clamp; 410. locking the frame; 42. locking the screw; 50. a positioning member; 51. positioning holes; 52. and (6) positioning the pin shaft.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 to 5, a preferred embodiment of the present invention provides a fixture for brazing a hollow blade, which is used for clamping and positioning a hollow blade 10 to be brazed, wherein the hollow blade 10 is composed of a blade body 11, a journal 12 mounted on an outer circle of a shaft end of the blade body 11, and a cover plate 13 covering a blade back of the blade body 11, a plurality of flow channels 110 are processed on the blade body 11, and the fixture comprises: and a lower support 20 for positioning and supporting the blade body 11 and the journal 12. Still include and press the seat 30 on for with the laminating of the upper surface of closing the apron 13 on blade 11 with the lid compress tightly apron 13 and blade 11 under the exogenic action, press on the seat 30 and be used for on the last pressure surface 301 with the laminating of the upper surface of apron 13 and be equipped with many and dodge groove 302, many dodge groove 302 and correspond many runners 110 setting respectively, in order to be used for avoiding on the apron 13 corresponding runner 110 department by the collapse. The locking device comprises a locking component 40 which is used for locking the lower support 20, the upper pressure seat 30 and the hollow blade 10 which is positioned and clamped between the lower support 20 and the upper pressure seat 30 into a whole.
The fixture for brazing the hollow blade comprises a lower support 20, wherein the lower support 20 can be used for positioning and supporting the blade body 11 and positioning and supporting the shaft neck 12 connected to the excircle of the shaft end of the blade body 11, so that the positioning accuracy of the assembled hollow blade is high, the quality of the welded hollow blade can be improved, and the disqualification rate of the hollow blade in brazing is reduced; the fixture further comprises an upper pressing seat 30, the upper pressing seat 30 not only presses the cover plate 13 and the blade body 11 under the action of external force through the attachment with the upper surface of the cover plate 13, but more importantly, a plurality of avoiding grooves 302 are arranged on an upper pressing surface 301, which is used for attaching with the cover plate 13, on the upper pressing seat 30, and the plurality of avoiding grooves 302 are respectively arranged corresponding to the plurality of flow channels 110, as shown in fig. 10 and 11, so that the situation that the suspended parts, corresponding to the flow channels 110, on the cover plate 13 are collapsed when the upper pressing seat 30 presses the cover plate 13 can be effectively avoided, the flow channels 110 are prevented from being collapsed, and the technical problem that the hollow blade flow channels are easily collapsed by a pressing plate in the prior art is; the fixture further comprises a locking member 40, and the locking member 40 is used for locking the positioned and assembled lower support 20, the hollow blade 10 and the upper pressure seat 30 into a whole, so that the deformation of the hollow blade in the brazing process can be effectively reduced, the quality of the hollow blade after being welded is further improved, and the brazing failure rate is reduced.
Preferably, the shape of the bypass groove 302 matches the shape of the correspondingly disposed flow passage 110. When the shape of the avoiding groove 302 matches the shape of the corresponding runner 110, not only the upper pressing base 30 can be conveniently positioned relative to the cover plate 13, but also the upper pressing base 30 can partially collapse the suspended part of the cover plate 13 corresponding to the runner 110 when the size of the avoiding groove 302 is smaller than the size of the corresponding runner 110, or the upper pressing base 30 presses the cover plate 13 or does not press the cover plate 13 in place when the size of the avoiding groove 302 is larger than the size of the corresponding runner 110.
Alternatively, as shown in fig. 12, the upper pressure base 30 includes an upper pressure plate 31, and a pressure block 32 provided on a lower surface of the upper pressure plate 31 and protruding toward the hollow blade 10. The lower surface of the pressing block 32 is an upper pressing surface 301.
Preferably, as shown in fig. 12, the projection of the pressing block 32 on the horizontal plane coincides with the projection of the upper pressing surface 301 on the horizontal plane. Thereby preventing interference of the compact 32 with the brazing operation of the hollow vane during the brazing process. Further, as shown in fig. 8 and 9, the shape of the pressing surface 301 is similar to the shape of the upper surface of the cover plate 13, and the size of the pressing surface 301 is smaller than the size of the upper surface of the cover plate 13. When the shape of the upper pressing surface 301 is similar to the shape of the upper surface of the cover plate 13 and the size of the upper pressing surface 301 is smaller than the size of the upper surface of the cover plate 13, on one hand, the upper pressing base 30 can be used for uniformly pressing the cover plate 13, and the upper pressing base 30 is prevented from being pressed to be deviated, over-pressed or not pressed in place; on the other hand, when the size of the upper pressing surface 301 is smaller than the size of the upper surface of the cover plate 13, that is, a gap is formed between the outer edge of the upper pressing surface 301 and the outer edge of the upper surface of the cover plate 13, the gap can be used for filling the brazing filler metal, so that the pressing block 32 is prevented from squeezing the brazing filler metal when the upper pressing base 30 presses the cover plate 13, and the pressing block 32 can be effectively prevented from being welded with the cover plate 13 under the action of the brazing filler metal.
In a specific embodiment of the present invention, as shown in fig. 8 and 9, the distance between the outer edge of the upper pressing surface 301 and the outer edge of the upper surface of the cover plate 13 is 0.3mm to 0.6 mm. When the distance between the outer edge of the upper pressing surface 301 and the outer edge of the upper surface of the cover plate 13 is less than 0.3mm, not only is the amount of brazing filler metal which can be added small, but also the brazing quality is affected, and in the welding operation process, the pressing block 32 is easily welded with the cover plate 13 into a whole under the action of the brazing filler metal. When the distance between the outer edge of the upper pressing surface 301 and the outer edge of the upper surface of the cover plate 13 is greater than 0.6mm, the pressing block 32 cannot uniformly press the cover plate 13, and there may be a phenomenon of pressure deviation, over-pressing, or under-pressing.
Preferably, as shown in fig. 12, the included angle between the side wall of the pressing block 32 and the upper pressing surface 301 is an acute angle. Not only is the pressing block 32 convenient to effectively compress the welding seam, but also a gap for filling the welding flux can be reserved, and the pressing block 32 and the cover plate 13 are prevented from being welded into a whole. Further, the side wall of the pressing block 32 is provided with a notch for forming an avoiding space for the brazing operation.
Alternatively, as shown in fig. 6, the lower support 20 includes a lower support plate 21, and the lower support plate 21 is provided with a blade body support boss group 22 for supporting and positioning the blade body 11, respectively, and a journal support boss group 23 for supporting the journal 12, respectively.
In the present invention, as shown in fig. 7, the blade body support boss group 22 includes a first boss 221 for attaching to the lower surface of the blade body 11 to support and position the blade body 11, and a second boss 222 and a third boss 223 respectively provided at both ends of the first boss 221 for supporting and positioning the shaft ends at both ends of the blade body 11. In the embodiment of the present invention, as shown in fig. 7, a positioning support surface for being attached to the lower surface of the blade body 11 is provided on the upper surface of the first boss 221, and the blade body 11 is positioned and supported on the first boss 221 by the attachment of the lower surface thereof to the positioning support surface. The second boss 222 is provided with a positioning support surface for being attached to the outer circle of the first axial end of the blade body 11, and a positioning stop surface perpendicular to the positioning support surface and attached to the positioning surface on the outer circle of the first axial end of the blade body 11, and the first axial end of the blade body 11 is supported on the second boss 222 by being attached to the positioning support surface and the positioning stop surface respectively. Similarly, the third boss 223 is provided with a positioning support surface for being attached to the support surface on the outer circle of the second shaft end of the blade body 11, and a positioning stop surface which is perpendicular to the positioning support surface and is abutted to the outer circle of the second shaft end of the blade body 11, and the second shaft end of the blade body 11 is supported on the third boss 223 through being abutted to the positioning support surface and the positioning stop surface respectively.
In the present invention, as shown in fig. 7, the journal supporting boss group 23 includes a fourth boss 231 and a fifth boss 232 for supporting the journal 12, respectively, to prevent the journal 12 from being deflected, the fourth boss 231 and the fifth boss 232 being located at one end of the hollow blade 10 and spaced apart in the axial direction of the hollow blade 10. In the embodiment of the present invention, as shown in fig. 7, the fourth boss 231 and the fifth boss 232 are respectively provided with a bearing surface for supporting the outer circle of the journal 12, and the journal 12 simultaneously bears against the bearing surface of the fourth boss 231 and the bearing surface of the fifth boss 232. Preferably, in order to reduce the difficulty and accuracy of machining the bearing surfaces on the fourth boss 231 and the fifth boss 232, in the preferred embodiment, when the assembled hollow blade is supported on the blade body support boss group 22, the fourth boss 231 and the fifth boss 232 do not contact the journal 12, and a gasket is added to the fourth boss 231 and the fifth boss 232 to contact the journal 12.
Optionally, as shown in fig. 3 and 4, the fixture further includes a positioning member 50 for positioning the position of the upper press seat 30 relative to the lower support 20, and the positioning member 50 includes: a plurality of positioning holes 51 correspondingly arranged on the lower support 20 and the upper press seat 30, and a plurality of positioning pins 52 penetrated in the positioning holes 51 for positioning the upper press seat 30 relative to the lower support 20. In the embodiment of the present invention, two positioning holes 51 are formed in the lower support plate 21, and two positioning holes 51 are also formed in the upper pressing plate 31 corresponding to the two positioning holes 51 of the lower support plate 21.
Alternatively, as shown in fig. 3 and 4, the locking member 40 includes a plurality of locking clips 41, and each locking clip 41 is provided with a locking frame 410 through which the lower support 20, the upper press seat 30 and the hollow blade 10 positioned and clamped between the lower support 20 and the upper press seat 30 penetrate. A plurality of locking screws 42 are connected to each locking clip 41, and each locking screw 42 is used for abutting against the upper pressure base 30 to tightly abut against the upper pressure base 30, the hollow vane 10 and the lower support 20 in the locking frame 410. Preferably, a spring is installed on the outer circle of the locking screw 42, and two ends of the spring respectively abut against the flange on the outer circle of the locking screw 42 and the locking clamp 41 for providing an elastic force for compressing the locking screw 42. In other embodiments, the locking member 40 comprises a plurality of sets of tightening bolts for tightening the upper pressure seat 30 and the lower support 20, the screw rods of the tightening bolts penetrate through the upper pressure plate 31 and the lower support plate 21, and the locking nuts of the tightening bolts are screwed on the outer circles of the screw rods.
In actual clamping, the upper pressure seat 30 is firstly placed above the hollow blade 10, the upper pressure surface 301 is attached to the upper surface of the cover plate 13, the two positioning holes 51 on the upper pressure plate 31 are respectively aligned with the two positioning holes 51 on the lower support plate 21, then the positioning pin 52 is inserted into the positioning holes 51 on one ends of the upper pressure plate 31 and the lower support plate 21, then the two locking clamps 41 are inserted into the upper pressure seat 30, the hollow blade 10 and the lower support 20 from the other end, the relative positions of the upper pressure seat 30, the lower support 20 and the hollow blade 10 are adjusted, the upper pressure plate 31 is aligned with the two positioning holes 51 on the lower support plate 21, then the positioning pin 52 is inserted into the positioning holes 51, the locking screw 42 is screwed, the upper pressure seat 30 and the lower support 20 are relatively fixed and clamped, and finally the positioning pin 52 is pulled out.
Optionally, in the present invention, in order to control the deformation of the hollow blade 10 during the brazing process, the upper pressing base 30 and the lower supporting base 20 are made of K403 or K424 cast high temperature alloy with good thermal stability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a hollow blade anchor clamps for brazing, its characterized in that for hollow blade (10) that treating the brazing are brazed in clamping, location, hollow blade (10) by blade body (11), install in journal (12) on blade body (11) axle head excircle, cover apron (13) on blade body (11) blade back constitute, it has many runners (110) to process on blade body (11), anchor clamps include:
a lower bearing (20) for positioning and supporting the blade body (11) and the shaft journal (12);
the upper pressing seat (30) is attached to the upper surface of the cover plate (13) covering the blade body (11) to press the cover plate (13) and the blade body (11) under the action of external force, a plurality of avoiding grooves (302) are formed in an upper pressing surface (301) of the upper pressing seat (30) attached to the upper surface of the cover plate (13), the avoiding grooves (302) are respectively arranged corresponding to the flow channels (110), and the cover plate (13) is prevented from being collapsed corresponding to the flow channels (110);
the locking member (40) is used for locking the lower support (20), the upper pressure seat (30) and the hollow blade (10) positioned and clamped between the lower support (20) and the upper pressure seat (30) into a whole;
the shape of the avoiding groove (302) is matched with the shape of the correspondingly arranged flow channel (110); when the shape of the avoiding groove (302) is matched with the shape of the correspondingly arranged flow channel (110), the upper pressing seat (30) can be conveniently positioned relative to the cover plate (13), and meanwhile, when the size of the avoiding groove (302) is smaller than the size of the correspondingly arranged flow channel (110), the upper pressing seat (30) can partially collapse the suspended part of the corresponding flow channel (110) on the cover plate (13), or when the size of the avoiding groove (302) is larger than the size of the correspondingly arranged flow channel (110), the upper pressing seat (30) presses the bias cover plate (13) or does not tightly press the cover plate (13) in place;
the upper pressure seat (30) comprises an upper pressure plate (31) and a pressure block (32) which is arranged on the lower surface of the upper pressure plate (31) and protrudes towards the hollow blade (10); the lower surface of the pressing block (32) is the upper pressing surface (301);
the projection of the pressing block (32) on the horizontal plane is superposed with the projection of the upper pressing surface (301) on the horizontal plane, so that the interference of the pressing block (32) on the brazing operation of the hollow blade in the brazing process can be avoided; the shape of the upper pressing surface (301) is similar to that of the upper surface of the cover plate (13), and the size of the upper pressing surface (301) is smaller than that of the upper surface of the cover plate (13); on one hand, the upper pressing seat (30) can be used for uniformly pressing the cover plate (13) to prevent the upper pressing seat (30) from being biased, over-pressed or not pressed in place; on the other hand, when the size of the upper pressing surface (301) is smaller than that of the upper surface of the cover plate (13), namely, a gap is formed between the outer edge of the upper pressing surface (301) and the outer edge of the upper surface of the cover plate (13), the gap can be used for filling brazing filler metal, the phenomenon that the brazing filler metal is squeezed out by the pressing block (32) when the upper pressing seat (30) presses the cover plate (13) is avoided, and the pressing block (32) can be effectively prevented from being welded with the cover plate (13) under the action of the brazing filler metal;
the distance between the outer edge of the upper pressing surface (301) and the outer edge of the upper surface of the cover plate (13) is 0.3-0.6 mm; when the distance between the outer edge of the upper pressing surface (301) and the outer edge of the upper surface of the cover plate (13) is less than 0.3mm, the amount of the brazing filler metal which can be added is small, the brazing quality is further influenced, and in the welding operation process, the pressing block (32) is easily welded with the cover plate (13) into a whole under the action of the brazing filler metal; when the distance between the outer edge of the upper pressing surface (301) and the outer edge of the upper surface of the cover plate (13) is larger than 0.6mm, the pressing block (32) cannot uniformly press the cover plate (13), and the phenomena of pressure deviation, over-pressure or insufficient pressing can exist;
an included angle between the side wall of the pressing block (32) and the upper pressing surface (301) is an acute angle; not only is the pressing block (32) convenient to effectively compress the welding seam, but also a gap for filling welding flux is reserved, and the pressing block (32) and the cover plate (13) are prevented from being welded into a whole; further, the side wall of the pressing block (32) is also provided with a notch for forming an avoiding space for a brazing operation.
2. The jig for brazing a hollow blade according to claim 1,
the lower support (20) comprises a lower support plate (21), and a blade body supporting boss group (22) and a shaft neck supporting boss group (23) are arranged on the lower support plate (21) and used for supporting and positioning the blade body (11) respectively and supporting the shaft neck (12) respectively.
3. The jig for brazing a hollow blade according to claim 2,
the blade body supporting boss group (22) comprises a first boss (221) which is attached to the lower surface of the blade body (11) to support and position the blade body (11), and a second boss (222) and a third boss (223) which are respectively arranged at two ends of the first boss (221) and used for respectively supporting and positioning shaft ends at two ends of the blade body (11);
the journal supporting boss group (23) comprises a fourth boss (231) and a fifth boss (232) which are used for respectively supporting the journal (12) to prevent the journal (12) from deflecting, and the fourth boss (231) and the fifth boss (232) are positioned at one end of the hollow blade (10) and are arranged at intervals along the axial direction of the hollow blade (10).
4. The jig for brazing a hollow blade according to claim 1,
the clamp further comprises a positioning member (50) for positioning the position of the upper pressure seat (30) relative to the lower support (20), the positioning member (50) comprising:
the positioning device comprises a plurality of groups of positioning holes (51) which are correspondingly arranged on the lower support (20) and the upper pressing seat (30), and a plurality of positioning pin shafts (52) which penetrate through the positioning holes (51) and are used for positioning the position of the upper pressing seat (30) relative to the lower support (20).
5. The jig for brazing a hollow blade according to claim 1,
the locking component (40) comprises a plurality of locking clamps (41), and each locking clamp (41) is provided with a locking frame (410) for the penetration of the lower support (20), the upper pressure seat (30) and the hollow blade (10) positioned and clamped between the lower support (20) and the upper pressure seat (30);
a plurality of locking screws (42) are connected to each locking clamp (41), and each locking screw (42) is used for abutting against the upper pressing seat (30) so as to tightly abut against the upper pressing seat (30), the hollow blade (10) and the lower support (20) in the locking frame (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922522.5A CN108581346B (en) | 2018-08-14 | 2018-08-14 | Hollow blade anchor clamps for brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922522.5A CN108581346B (en) | 2018-08-14 | 2018-08-14 | Hollow blade anchor clamps for brazing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108581346A CN108581346A (en) | 2018-09-28 |
| CN108581346B true CN108581346B (en) | 2020-05-19 |
Family
ID=63618989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810922522.5A Active CN108581346B (en) | 2018-08-14 | 2018-08-14 | Hollow blade anchor clamps for brazing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108581346B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192163A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Method for machining hollow adjustable guide vane of engine |
| CN115673593A (en) * | 2022-11-16 | 2023-02-03 | 中国航发常州兰翔机械有限责任公司 | Beryllium bronze guide vane assembly protective atmosphere brazing process and quality inspection method |
| CN117245252B (en) * | 2023-11-17 | 2024-01-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Inertia friction welding and diffusion welding composite manufacturing method for hollow turbine disk with journal |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1721698A1 (en) * | 2005-05-09 | 2006-11-15 | Snecma Services | Method of manufacturing a hollow blade comprising a squealer tip and method of repairing such a blade |
| CN101417396A (en) * | 2008-11-27 | 2009-04-29 | 西安交通大学 | Turbine hollow blade rabbet processing locating clamping method and device |
| CN203140940U (en) * | 2012-12-26 | 2013-08-21 | 中国航空工业集团公司第六三一研究所 | Thick plate brazing fixture |
| CN103600187A (en) * | 2011-12-31 | 2014-02-26 | 无锡透平叶片有限公司 | Fixture device for spot welding operation of hollow fixed blade leading and trailing edges |
| CN203476548U (en) * | 2013-08-21 | 2014-03-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Hollow and adjustable blade structure of engine |
| CN203863179U (en) * | 2013-12-04 | 2014-10-08 | 贵州永红航空机械有限责任公司 | Brazing fixture |
| CN204504571U (en) * | 2014-11-29 | 2015-07-29 | 无锡透平叶片有限公司 | A kind of positioning clamp for spot welding device of hollow blade |
| CN106595791A (en) * | 2016-12-21 | 2017-04-26 | 中国南方航空工业(集团)有限公司 | Measuring fixture for flow of cavity of hollow blade |
| CN206855045U (en) * | 2017-05-19 | 2018-01-09 | 昂拓科技（苏州）有限公司 | Aerial blade is accurately positioned stationary fixture |
| CN108188787A (en) * | 2018-03-20 | 2018-06-22 | 强胜精密机械(苏州)有限公司 | A kind of telescopic spring positioning fixture and clamping method |
-
2018
- 2018-08-14 CN CN201810922522.5A patent/CN108581346B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1721698A1 (en) * | 2005-05-09 | 2006-11-15 | Snecma Services | Method of manufacturing a hollow blade comprising a squealer tip and method of repairing such a blade |
| CN101417396A (en) * | 2008-11-27 | 2009-04-29 | 西安交通大学 | Turbine hollow blade rabbet processing locating clamping method and device |
| CN103600187A (en) * | 2011-12-31 | 2014-02-26 | 无锡透平叶片有限公司 | Fixture device for spot welding operation of hollow fixed blade leading and trailing edges |
| CN203140940U (en) * | 2012-12-26 | 2013-08-21 | 中国航空工业集团公司第六三一研究所 | Thick plate brazing fixture |
| CN203476548U (en) * | 2013-08-21 | 2014-03-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Hollow and adjustable blade structure of engine |
| CN203863179U (en) * | 2013-12-04 | 2014-10-08 | 贵州永红航空机械有限责任公司 | Brazing fixture |
| CN204504571U (en) * | 2014-11-29 | 2015-07-29 | 无锡透平叶片有限公司 | A kind of positioning clamp for spot welding device of hollow blade |
| CN106595791A (en) * | 2016-12-21 | 2017-04-26 | 中国南方航空工业(集团)有限公司 | Measuring fixture for flow of cavity of hollow blade |
| CN206855045U (en) * | 2017-05-19 | 2018-01-09 | 昂拓科技（苏州）有限公司 | Aerial blade is accurately positioned stationary fixture |
| CN108188787A (en) * | 2018-03-20 | 2018-06-22 | 强胜精密机械(苏州)有限公司 | A kind of telescopic spring positioning fixture and clamping method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108581346A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108581346B (en) | Hollow blade anchor clamps for brazing | |
| CN105290559A (en) | Energy storage spot-welding locating and clamping device of stationary blade fan-shaped block welding assembly | |
| CN109365947A (en) | The vacuum brazing clamp and method of flame tube head component | |
| CN212635418U (en) | Clamp for assembling back arc of fine grinding blade | |
| CN108655772B (en) | Turning clamp for gas turbine rectifying housing | |
| CN210548707U (en) | Composite brazing tool | |
| CN103659103B (en) | A kind of turbine blade silver soldering multistage combination stellite alloy film special tooling | |
| CN213318556U (en) | Welding forming die of wind turbine generator head support | |
| CN214769962U (en) | Thrust foil gas bearing welding tool | |
| CN215146984U (en) | Carburetor processing location frock | |
| CN108188451B (en) | A kind of brill bottom plate hole tool of generator support component | |
| CN209887043U (en) | Tool for piezoelectric motor bearing | |
| CN113732536A (en) | Welding fixture for T-shaped joint of sheet metal component and using method | |
| CN210677339U (en) | Clamp assembly and welding equipment | |
| CN220092800U (en) | Flattening tool | |
| CN221337010U (en) | Be used for welded frock clamp of IGBT radiator | |
| CN216000203U (en) | Finish machining tool for junction surface of crankcase oil pan of V-shaped engine | |
| CN214393252U (en) | Turning multi-section gland sealing arc section clamping tool | |
| CN217859649U (en) | Fixing and clamping device for large-scale assembly welding part | |
| CN218169132U (en) | Clamp for laser cutting of heat shield | |
| CN212472475U (en) | Automatic assembly device of umbrella-shaped valve | |
| CN219725342U (en) | Gas turbine bearing frame number mills anchor clamps | |
| CN217992412U (en) | Tool for ballasting belleville spring assembly | |
| CN218284274U (en) | Welding fixture | |
| CN210647869U (en) | Frock is corrected to H shaped steel flange plate pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |