CN214080032U - Radial diffuser spiral shell seat welding jig - Google Patents
Radial diffuser spiral shell seat welding jig Download PDFInfo
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- CN214080032U CN214080032U CN202023234717.2U CN202023234717U CN214080032U CN 214080032 U CN214080032 U CN 214080032U CN 202023234717 U CN202023234717 U CN 202023234717U CN 214080032 U CN214080032 U CN 214080032U
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- seat
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- radial diffuser
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a radial diffuser anchor clamps for screw seat welding, this radial diffuser anchor clamps for screw seat welding includes the seat of honour, with screw seat screw-thread fit's set screw, the seat of honour includes the seat of honour ring body and the seat of honour ring platform that integrated into one piece set up, the seat of honour includes the lower seat of the ring body and the lower seat of integrated into one piece setting, the lateral wall of the seat of honour ring body, 5 positioning seats that set up along radial protrusion of each equipartition on the lateral wall of the lower seat of ring body, the center of each positioning seat is run through and is set up the circular shape screw seat storage tank, on same circumference is arranged in to each screw seat storage tank, accept the crossbeam along radial setting in the screw seat storage tank, the center of accepting the crossbeam sets up the central through-hole with screw seat shape looks adaptation, the both sides of accepting the crossbeam form sectorial spot welding groove, the both sides of central through-hole set up the location pinhole, the flange portion both sides of screw seat set up shallow arc groove.
Description
Technical Field
The utility model relates to an aeroengine spare part technical field, especially a radial diffuser spiral shell seat anchor clamps for welding.
Background
Radial diffuser subassembly comprises parts such as radial diffuser, spiral shell seat, as shown in fig. 1, radial diffuser includes ring plate 1, ring plate 3 and a plurality of guide vane 2 down, radial diffuser is upper, lower ring plate respectively has the spiral shell seat 4 of 5 equipartitions, the spiral shell seat 4 of going up ring plate 1 sets up with spiral shell seat 4 one-to-one of ring plate 3 down, adopt welding mode to connect between the upper and lower ring plate of spiral shell seat 5 and radial diffuser, as shown in fig. 2, spiral shell seat 4 includes thinner circular flange portion 42 and cylindrical screw portion 41, be used for the welding around flange portion 42. In production, the height of the position degree of the screw seat determines whether an interference phenomenon exists in the assembly of the radial diffuser component; at present, when a screw seat is welded to an upper ring sheet and a lower ring sheet of a radial diffuser, the screw seat is welded in an outer diameter positioning mode. However, the coaxiality between the screw seat internal thread hole and the outer contour is low, so that the position degree of the screw seat on the radial diffuser cannot be ensured, and the assembly of the radial diffuser assembly is influenced. The drawing requires that the position degree of the center of the threaded hole of the screw seat is less than phi 0.5mm, and the actually measured position degree exceeds phi 1mm, so that the assembly is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a radial diffuser screw seat welding jig that simple structure, welding position precision are higher.
In order to solve the technical problem, the utility model provides a radial diffuser screw seat welding fixture, including upper seat, lower seat, the set screw with screw seat screw-thread fit, the upper seat includes integrated into one piece upper seat ring body and upper seat ring platform, the lower seat includes integrated into one piece lower seat ring body and lower seat ring platform, each equipartition is 5 along the radial protrusion setting positioning seats on the lateral wall of upper seat ring body, the lateral wall of lower seat ring body, the center of each positioning seat runs through and sets up circular screw seat storage tank, each screw seat storage tank is arranged on the same circumference, radially set up the accepting crossbeam in the screw seat storage tank, the center of accepting crossbeam sets up the central through-hole that matches with the screw seat shape, the both sides of accepting crossbeam form fan-shaped spot welding groove, the both sides of central through-hole set up the location pinhole, the flange portion both sides of screw seat set up the shallow arc groove, the screw thread portion of screw seat stretches into central through-hole during use, the locating pin is arranged in the locating pin hole in a protruding mode, the locating pin is clamped into the shallow arc groove of the flange portion, the locating screw stretches into the central through hole and is in threaded connection with the screw base, the screw base is limited by the locating pin and the locating screw, the flange portion of the screw base is arranged at the port of the central through hole, the upper ring platform of the upper base and the lower ring platform of the lower base are sleeved into the radial diffuser, the upper ring piece of the radial diffuser is made to be attached to the locating seat on the upper base, and the lower ring piece of the radial diffuser is made to be attached to the locating seat on the lower base.
Further, the central through hole comprises a frustum part, a cylindrical part and a through hole part, the inner diameter of the opening end of the frustum part is not larger than the outer diameter of the flange part of the screw seat, the inner diameter of the cylindrical part is larger than the outer diameter of the threaded part, and the through hole part is in clearance fit with the positioning screw, so that when the threaded part of the screw seat extends into the central through hole, the flange part of the screw seat is arranged at the opening end of the frustum part.
Furthermore, the upper seat ring platform is convexly arranged, and the lower seat ring platform is concavely arranged, so that the upper seat ring platform is in sleeve joint with the lower seat ring platform.
Further, the outer diameter of the lower seat ring platform is smaller than the inner diameter of the radial diffuser, so that when the radial diffuser is sleeved with the upper seat ring platform and the lower seat ring platform, the outer wall of the lower seat ring platform is in clearance fit with the inner wall of the radial diffuser.
Further, radial diffuser spiral shell seat welding is with anchor clamps still includes radial set screw, goes up the seat ring bench and sets up the radial screw with radial set screw thread fit, and lower seat ring bench sets up and dodges the groove to make the seat ring bench cup joint the back with lower seat ring bench, radial set screw protractile seat ring bench and lower seat ring bench, with the guide vane butt of radial diffuser.
Furthermore, the clamp for welding the screw seat of the radial diffuser further comprises an angular positioning pin, an angular positioning hole matched with the angular positioning pin is axially arranged on the upper seat ring body, and a lower seat positioning hole corresponding to the angular positioning hole is arranged on the lower seat ring body, so that after assembly, when the upper seat and the lower seat are arranged at two ends of the radial diffuser, the angular positioning pin is inserted into the corresponding angular positioning hole and the corresponding lower seat positioning hole, and the angular positions of the upper seat and the lower seat are ensured.
Further, radial diffuser spiral shell seat anchor clamps for welding still include housing screw, go up the ring bench equipartition a plurality of and housing screw thread fit's seat of honour compress tightly the screw, the equipartition is a plurality of and is compressed tightly the screw with the seat of honour on the lower ring body and compress tightly the lower seat of screw one-to-one to make seat of honour carry out threaded connection by housing screw after with the lower seat assembly.
The technical effects of the utility model are that: (1) compared with the prior art, the clamp for welding the screw seat of the radial diffuser is characterized in that the positioning seat is arranged on the side wall of the upper seat and the lower seat, the screw seat accommodating groove is formed in the positioning seat, so that the screw seat is firstly positioned in the upper seat and the lower seat, and the screw seat can be centered and positioned by utilizing the central through hole and the positioning pin which are arranged on the bearing cross beam, so that the assembly precision of the screw seat is ensured; (2) the spot welding groove is arranged, so that the screw seat can be preliminarily welded, and the upper seat and the lower seat are taken down after the screw seat is welded and fixed and then full welding is carried out; (3) the radial positioning screws are arranged, so that the radial diffuser, the upper seat and the lower seat can be positioned angularly, and the welding position deviation caused by the rotation of the radial diffuser in the welding process is avoided; (4) the arrangement of the angular positioning pins can ensure that the screw seats of the upper seat and the screw seats of the lower seat are arranged in a one-to-one correspondence manner.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
FIG. 1 is a perspective view of a radial diffuser assembly;
FIG. 2 is a perspective view of the screw seat;
FIG. 3 is a schematic structural view of the upper seat;
FIG. 4 is an enlarged view of a portion of the positioning socket;
FIG. 5 is a schematic cross-sectional view of the upper base;
FIG. 6 is a schematic view of the lower housing;
FIG. 7 is a schematic cross-sectional view of the assembled upper seat, radial diffuser, and lower seat;
FIG. 8 is a schematic view of a set screw;
fig. 9 is a schematic view of a radial set screw.
In the figure: the guide vane type wind power generation device comprises an upper ring piece 1, a guide vane 2, a lower ring piece 3, a screw seat 4, a threaded portion 41, a flange portion 42, an upper seat 5, an upper seat ring body 51, an upper seat ring platform 52, a positioning seat 53, an angular positioning hole 54, a radial screw hole 55, an upper seat pressing screw hole 56, a screw seat accommodating groove 6, a spot welding groove 61, a central through hole 62, a positioning pin hole 63, a bearing cross beam 64, a frustum portion 65, a cylindrical portion 66, a through hole portion 67, a radial positioning screw 7, a lower seat 8, an angular positioning pin 81, a positioning screw 82, a lower seat positioning hole 83 and a pressing screw 84.
Detailed Description
Example 1
As shown in fig. 3 to 9, the radial diffuser screw seat welding fixture of this embodiment includes an upper seat 5, a lower seat 8, and a positioning screw 82 in threaded fit with the screw seat 4, where the upper seat 5 includes an upper seat ring body 51 and an upper seat ring platform 52 that are integrally formed, the upper seat ring body 51 is circular, the upper seat ring platform 52 is convexly disposed at the front end of the upper seat ring body 51, so as to form an upper seat step between the upper seat ring platform 52 and the upper seat ring body 51, the lower seat 8 includes a lower seat ring body and a lower seat ring platform that are integrally formed, the lower seat ring platform is concavely disposed, so as to form a lower seat step between the lower seat ring platform and the lower seat ring body, and the upper seat ring platform 52 and the lower seat ring platform can be in sleeve fit; the outer diameter of the lower seat ring platform is smaller than the inner diameter of the radial diffuser (namely the inner diameters of the upper ring piece 1 and the lower ring piece 3), so that when the radial diffuser is sleeved with the upper seat ring platform 52 and the lower seat ring platform, the upper seat ring platform 52 extends into the lower seat ring platform, and the outer wall of the lower seat ring platform is in clearance fit with the inner wall of the radial diffuser.
The side wall of the upper seat ring body 51 and the side wall of the lower seat ring body are respectively and uniformly provided with 5 positioning seats 53 which are arranged in a protruding way along the radial direction, the center of each positioning seat 53 penetrates through and is provided with a circular screw seat accommodating groove 6, each screw seat accommodating groove 6 is arranged on the same circumference, a receiving cross beam 64 is arranged in the screw seat accommodating groove 6 along the radial direction, the center of the receiving cross beam 64 is provided with a central through hole 62 matched with the shape of a screw seat 4, the central through hole 62 comprises a cone table part 65, a cylinder part 66 and a through hole part 67, the inner diameter of the opening end of the cone table part 65 is not more than the outer diameter of the screw seat flange part 42, the inner diameter of the cylinder part 66 is more than the outer diameter of the thread part 41, the through hole part 67 is in clearance fit with a positioning screw 82, fan-shaped spot welding grooves 61 are formed on two sides of the receiving cross beam 64, two sides of the central through hole 62 are respectively provided with positioning pin holes 63, two sides of the flange part 42 of the screw seat 4 are provided with shallow arc grooves, the thread part 41 of the screw seat 4 extends into the central through hole 62 when in use, protruding setting locating pin in the locating pin hole 63, and the shallow arc groove of locating pin card income flange portion 42, set screw 82 stretches into central through hole 62 and with spiral shell seat 4 threaded connection, by the locating pin, set screw 82 carries on spacingly to spiral shell seat 4, make the flange portion 42 of spiral shell seat 4 arrange the open end of frustum portion 65 in, with the upper seat ring platform 52 of upper seat 5, the lower seat ring platform of lower seat 8 embolias radial diffuser, make the upper ring piece 1 of radial diffuser hug closely the positioning seat 53 on the upper seat 5, the positioning seat on the lower seat 8 is hugged closely to the lower ring piece 3 of radial diffuser.
In order to prevent the upper seat 5, the lower seat 8 and the radial diffuser from rotating after being assembled, the clamp for welding the screw seat of the radial diffuser further comprises a radial positioning screw, a radial screw hole in threaded fit with the radial positioning screw is formed in the upper seat ring platform, and an avoiding groove is formed in the lower seat ring platform, so that after the upper seat ring platform is sleeved with the lower seat ring platform, the radial positioning screw can extend out of the upper seat ring platform and the lower seat ring platform and is abutted to the guide vanes of the radial diffuser.
In order to ensure that the screw seats of the upper ring piece and the lower ring piece of the radial diffuser are in one-to-one correspondence during assembly, the clamp for welding the screw seats of the radial diffuser further comprises an angular positioning pin 81, 1 angular positioning hole 54 matched with the angular positioning pin 81 is axially arranged on the upper seat ring table 52, and a lower seat positioning hole 83 corresponding to the angular positioning hole 54 is arranged on the lower seat ring body, so that after assembly, when the upper seat 5 and the lower seat 8 are arranged at two ends of the radial diffuser, the angular positioning pin 81 is inserted into the corresponding angular positioning hole 54 and the corresponding lower seat positioning hole 83, and the angular position relation between the upper seat 5 and the lower seat 8 is ensured.
The clamp for welding the screw base of the radial diffuser further comprises 6 compression screws 84, 6 upper base compression screw holes 56 in threaded fit with the compression screws 84 are uniformly distributed on the upper base ring platform 52, and 6 lower base compression screw holes in one-to-one correspondence to the upper base compression screw holes 56 are uniformly distributed on the lower base ring body, so that the upper base 5 and the lower base 8 are connected through the compression screws 84 in a threaded mode after being assembled, and the upper base 5 and the lower base 8 are fixed.
Example 2
The use method of the radial diffuser screw seat welding clamp in embodiment 1 includes the following steps:
A. the protruding locating pin is inserted into each locating pin hole 63, 5 screw bases 4 are respectively placed into 5 screw base accommodating grooves 6 of the lower base 8, the thread part 41 of each screw base 4 extends into the cylindrical part 66, the flange part 42 of each screw base 4 is placed at the opening end of the conical part 65, the shallow arc groove of each screw base flange part 42 is clamped into the locating pin, and the screw bases 4 are preliminarily located by the locating pins.
B. The positioning screw 82 is screwed into the central through hole 62 from the through hole part 67 of each central through hole 62, so that the positioning screw 82 is in threaded connection with the screw seat 4, and the screw seat 4 is accurately positioned by the positioning screw 82 and the positioning pins on two sides.
C. The radial diffuser is sleeved on the lower seat ring table of the lower seat 8, so that the lower ring piece 3 of the radial diffuser is tightly attached to the positioning seat 53 of the lower seat 8.
E. The assembled radial diffuser and the lower seat 8 are inverted, so that the upper seat ring platform 82 of the upper seat 5 is inserted into the lower seat ring platform, and the upper ring piece 1 of the radial diffuser is tightly attached to the positioning seat 53 of the upper seat 5.
F. The upper seat 5 is rotated so that the lower seat positioning hole 83 of the lower seat 8 is aligned with the angular positioning hole 54 of the upper seat 5, and the angular positioning pin 81 is inserted into the lower seat positioning hole 83 and the angular positioning hole 54 to ensure that the screw seat 4 of the upper seat 5 is aligned with the screw seat 4 of the lower seat 8.
G. Rotating the radial diffuser, adjusting the circumferential position of the radial diffuser to enable the screw seat 4 to be located at a preset assembly position (a position needing to avoid the guide vanes 3) of the radial diffuser, and screwing in the radial positioning screw 7 to enable the radial positioning screw 7 to be abutted against the guide vanes 3 to prevent the radial diffuser from rotating; the compression screw 84 is screwed into the upper seat compression screw hole 56 and the lower seat compression screw hole, so that the upper seat 5 and the lower seat 8 fix the radial diffuser;
H. the flange part 42 of each screw seat 4 and the radial diffuser are fixed by spot welding through a spot welding groove 61; the upper seat 5 and the lower seat 8 are removed, and the periphery of each screw seat flange portion 42 is fully welded to the radial diffuser.
When the fixture is used for welding, the radial diffuser and the screw seat after welding are measured, and the measurement result shows that: the screw seat position degree is about phi 0.3mm, and compared with the original welding method, the precision is greatly improved, and the design requirement is met.
It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And that obvious changes and modifications may be made without departing from the spirit of the invention.
Claims (7)
1. A radial diffuser screw seat welding fixture is characterized by comprising an upper seat, a lower seat and a positioning screw matched with a screw seat in a threaded manner, wherein the upper seat comprises an upper seat ring body and an upper seat ring platform which are integrally formed, the lower seat comprises a lower seat ring body and a lower seat ring platform which are integrally formed, 5 positioning seats which are radially and convexly arranged are respectively and uniformly distributed on the side wall of the upper seat ring body and the side wall of the lower seat ring body, the center of each positioning seat penetrates through a circular screw seat accommodating groove, each screw seat accommodating groove is arranged on the same circumference, a bearing cross beam is radially arranged in each screw seat accommodating groove, a central through hole matched with the shape of the screw seat is arranged at the center of the bearing cross beam, fan-shaped spot welding grooves are formed at two sides of the bearing cross beam, positioning pin holes are arranged at two sides of a flange part of the screw seat, a threaded part of the screw seat extends into the central through hole when the fixture is used, a positioning pin is convexly arranged in the positioning pin hole, and the positioning pin is clamped into the shallow arc groove of the flange part, the positioning screw extends into the central through hole and is in threaded connection with the screw seat, the screw seat is limited by the positioning pin and the positioning screw, so that the flange part of the screw seat is arranged at the port of the central through hole, the upper seat ring platform of the upper seat and the lower seat ring platform of the lower seat are sleeved into the radial diffuser, the upper ring piece of the radial diffuser is tightly attached to the positioning seat on the upper seat, and the lower ring piece of the radial diffuser is tightly attached to the positioning seat on the lower seat.
2. The jig for welding a screw seat of a radial diffuser of claim 1, wherein the central through hole includes a frustum portion, a cylindrical portion and a through hole portion, an inner diameter of an opening end of the frustum portion is not larger than an outer diameter of a flange portion of the screw seat, an inner diameter of the cylindrical portion is larger than an outer diameter of the threaded portion, and the through hole portion is in clearance fit with the set screw so that the flange portion of the screw seat is positioned at the opening end of the frustum portion when the threaded portion of the screw seat extends into the central through hole.
3. The clamp for welding the screw seat of the radial diffuser of claim 2, wherein the upper seat ring platform is protruded, and the lower seat ring platform is recessed, so that the upper seat ring platform and the lower seat ring platform are sleeved and matched.
4. The jig for welding the screw seat of the radial diffuser of claim 2 or 3, wherein an outer diameter of the lower seat ring is smaller than an inner diameter of the radial diffuser, so that when the radial diffuser is sleeved with the upper seat ring and the lower seat ring, an outer wall of the lower seat ring is in clearance fit with an inner wall of the radial diffuser.
5. The clamp for welding the screw seat of the radial diffuser of claim 4, further comprising a radial positioning screw, wherein the upper seat ring platform is provided with a radial screw hole in threaded fit with the radial positioning screw, and the lower seat ring platform is provided with an avoiding groove, so that after the upper seat ring platform is sleeved with the lower seat ring platform, the radial positioning screw can extend out of the upper seat ring platform and the lower seat ring platform to abut against a guide vane of the radial diffuser.
6. The jig for welding the screw seat of the radial diffuser of claim 5, further comprising an angular positioning pin, wherein the upper seat ring body is provided with an angular positioning hole matched with the angular positioning pin along the axial direction, and the lower seat ring body is provided with a lower seat positioning hole corresponding to the angular positioning hole, so that the angular positioning pin is inserted into the corresponding angular positioning hole and the lower seat positioning hole when the upper seat and the lower seat are placed at the two ends of the radial diffuser after assembly.
7. The clamp for welding the screw seat of the radial diffuser of claim 6, further comprising a compression screw, wherein a plurality of upper seat compression screw holes in threaded fit with the compression screw are uniformly distributed on the upper seat ring, and a plurality of lower seat compression screw holes in one-to-one correspondence to the upper seat compression screw holes are uniformly distributed on the lower seat ring, so that the upper seat and the lower seat are in threaded connection through the compression screw after being assembled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633300.9A CN111716061A (en) | 2020-07-02 | 2020-07-02 | Clamp for welding screw base of radial diffuser and using method of clamp |
| CN2020106333009 | 2020-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214080032U true CN214080032U (en) | 2021-08-31 |
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ID=72572028
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010633300.9A Pending CN111716061A (en) | 2020-07-02 | 2020-07-02 | Clamp for welding screw base of radial diffuser and using method of clamp |
| CN202023234717.2U Active CN214080032U (en) | 2020-07-02 | 2020-12-29 | Radial diffuser spiral shell seat welding jig |
| CN202011588467.4A Pending CN112518210A (en) | 2020-07-02 | 2020-12-29 | Clamp for welding screw base of radial diffuser and using method of clamp |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010633300.9A Pending CN111716061A (en) | 2020-07-02 | 2020-07-02 | Clamp for welding screw base of radial diffuser and using method of clamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588467.4A Pending CN112518210A (en) | 2020-07-02 | 2020-12-29 | Clamp for welding screw base of radial diffuser and using method of clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN111716061A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833413A (en) * | 2020-12-16 | 2022-08-02 | 中国航发常州兰翔机械有限责任公司 | Clamp for welding screw base of radial diffuser and vacuum brazing process of clamp |
| CN113503298B (en) * | 2021-06-29 | 2022-12-30 | 中船黄埔文冲船舶有限公司 | Marine touch pin mounting device and using method |
-
2020
- 2020-07-02 CN CN202010633300.9A patent/CN111716061A/en active Pending
- 2020-12-29 CN CN202023234717.2U patent/CN214080032U/en active Active
- 2020-12-29 CN CN202011588467.4A patent/CN112518210A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN111716061A (en) | 2020-09-29 |
| CN112518210A (en) | 2021-03-19 |
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