CN211991551U - Welding positioning device for turbine impeller and finished rotor shaft of turbocharger - Google Patents
Welding positioning device for turbine impeller and finished rotor shaft of turbocharger Download PDFInfo
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- CN211991551U CN211991551U CN201922313796.7U CN201922313796U CN211991551U CN 211991551 U CN211991551 U CN 211991551U CN 201922313796 U CN201922313796 U CN 201922313796U CN 211991551 U CN211991551 U CN 211991551U
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Abstract
The utility model discloses a welding positioning device for a turbine impeller and a finished product rotor shaft of a turbocharger, which comprises a positioning clamp body, wherein the upper part of the positioning clamp body is provided with a welding operation channel which is transversely distributed; the upper side and the lower side of the channel are respectively provided with an anti-falling auxiliary disc accommodating groove and a shaft sleeve mounting cavity; the anti-falling auxiliary disc is placed in the anti-falling auxiliary disc accommodating groove; a turbine impeller accommodating groove is formed in the center of the anti-falling auxiliary disc; a turbine impeller is arranged in the turbine impeller accommodating groove; the main shaft sleeve is inserted into the shaft sleeve mounting cavity; a reducing shaft sleeve accommodating cavity is formed in the main shaft sleeve; the reducing shaft sleeve is inserted into the upper part of the reducing shaft sleeve accommodating cavity; the top of the reducing shaft sleeve is fixedly connected with the top of the main shaft sleeve; a finished rotor shaft is vertically inserted into a finished rotor shaft accommodating cavity in the reducing shaft sleeve in a penetrating manner; the turbine wheel is connected with the finished rotor shaft. The utility model discloses can be fast, carry out location restraint with turbine wheel and finished product rotor shaft reliably, make things convenient for welding set to carry out welding operation, guarantee finished product turbine pivot production quality.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a welding position device of turbo charger turbine wheel and finished product rotor shaft.
Background
Turbochargers are important components for increasing engine power, reducing fuel consumption, and improving emissions. Under the strict environmental protection requirement of the national execution state six-emission standard, the exhaust gas turbocharging becomes an engine standard component, and how to improve the manufacturing capability and the processing efficiency of the turbocharger becomes a consistent target of various manufacturers.
The turbine rotating shaft is a core part of the turbocharger, is an assembly formed by welding a turbine impeller (cast by nickel-based high-temperature alloy K418) and a rotor shaft (42CrMo bar), has the working rotating speed on the automobile turbocharger up to more than 15 ten thousand revolutions per minute, is severe in working environment, has good and bad processing quality, and directly influences the performance and the reliability of the turbocharger.
For a turbine rotating shaft, the existing processing technology is as follows: after the turbine impeller and the blank rotor shaft are welded, rough machining and finish machining are carried out on the shaft rod part, the machining process is long in route, the production period is long, factors influencing the product quality in the machining process are many, and the quality of the finished turbine rotating shaft is easy to cause instability. To avoid these adverse effects, only the improved process is to innovatively employ the direct welding of the turbine wheel and the finished rotor shaft by finishing the turbine wheel and the rotor shaft to size and then welding.
However, at present, there is no technology that can quickly and reliably position and restrain the turbine impeller and the finished rotor shaft, so as to facilitate the welding operation of an external welding device and ensure the stable quality of the finally produced finished turbine rotating shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a welding position device of turbo charger turbine wheel and finished product rotor shaft to the technical defect that prior art exists.
Therefore, the utility model provides a welding and positioning device for a turbine impeller and a finished rotor shaft of a turbocharger, which comprises a positioning clamp body;
the upper part of the positioning clamp body is provided with welding operation channels which transversely penetrate through and are distributed;
an anti-falling auxiliary disc accommodating groove is formed above the welding operation channel;
an anti-falling auxiliary disc is arranged in the anti-falling auxiliary disc accommodating groove;
a turbine impeller accommodating groove with an upper opening and a lower opening is formed in the central position of the anti-falling auxiliary disc;
a turbine impeller is vertically arranged in the turbine impeller accommodating groove;
a shaft sleeve mounting cavity which is vertically distributed is arranged below the welding operation channel;
the spindle sleeve is arranged in the shaft sleeve mounting cavity and vertically inserted with the spindle sleeve;
a reducing shaft sleeve accommodating cavity which is vertically distributed is arranged in the main shaft sleeve;
the reducing shaft sleeve is inserted into the upper part of the reducing shaft sleeve accommodating cavity;
the top of the reducing shaft sleeve is fixedly connected with the top of the main shaft sleeve;
finished rotor shaft accommodating cavities which are vertically distributed are formed in the variable-diameter shaft sleeve;
the finished rotor shaft accommodating cavity is vertically inserted with a finished rotor shaft in a penetrating way;
the top of the finished rotor shaft protrudes upwards from the finished rotor shaft accommodating cavity;
the turbine impeller is positioned right above the finished rotor shaft;
the turbine wheel is connected with the finished rotor shaft.
Wherein, the top center position of the finished rotor shaft is pre-processed with a connecting shaft head;
an inner hole is pre-processed at the bottom of the turbine impeller at a position corresponding to the connecting shaft head;
and the connecting shaft head at the top of the finished rotor shaft is inserted into an inner hole at the bottom of the wheel blade.
Wherein, the finished product rotor shaft holds the cavity, and turbine wheel holding tank is located same central axis.
Two first radial bearings are arranged between the outer wall of the upper part of the main shaft sleeve and the inner wall of the shaft sleeve mounting cavity;
a second radial bearing is arranged between the outer wall of the middle lower part of the main shaft sleeve and the inner wall of the shaft sleeve mounting cavity;
the first radial bearing and the second radial bearing are sleeved on the outer wall of the main shaft sleeve;
the outer wall of the shaft sleeve is also sleeved with an adjusting spacer sleeve which is distributed annularly;
the position of the spacer sleeve between the first radial bearing and the second radial bearing is adjusted.
The anti-falling auxiliary disc accommodating groove is communicated with the middle part of the upper side of the welding operation channel;
the shaft sleeve is provided with a cavity which is communicated with the middle part of the lower side of the welding operation channel.
The size of a first horizontal supporting platform arranged at the top of the spindle sleeve is larger than the size of a top opening of the shaft sleeve mounting cavity;
the size of the second horizontal supporting platform arranged at the top of the reducing shaft sleeve is larger than the size of the top opening of the accommodating cavity of the reducing shaft sleeve.
Wherein, a tilting prevention auxiliary disc is covered above a first horizontal supporting table arranged at the top of the main shaft sleeve and a second horizontal supporting table arranged at the top of the reducing shaft sleeve;
the size of the anti-falling auxiliary disc is larger than that of the second horizontal supporting table arranged on the top of the first horizontal supporting table and the top of the reducing shaft sleeve.
The anti-falling auxiliary disc is positioned below a preset welding position between the turbine impeller and the finished product rotor shaft;
the bottom of the anti-falling auxiliary disc is provided with bosses distributed in a surrounding mode, and the bosses cover the outer wall of the top of the second horizontal supporting table.
Wherein, the outer wall of the lower part of the main shaft sleeve is sleeved with an end cover;
the top of the end cover is contacted with the bottom of the second radial bearing;
the peripheral edge of the end cover is fixedly connected with the bottom of the positioning clamp body through a plurality of screws distributed at intervals.
The outer wall of the lower part of the main shaft sleeve is in threaded connection with a locking nut at a position below the end cover;
a pressing pad is annularly distributed between the locking nut and the end cover;
the outer wall around the end of the lower part of the main shaft sleeve is provided with a plurality of transmission pins at equal intervals.
By above the technical scheme the utility model provides a it is visible, compare with prior art, the utility model provides a welding position device of turbo charger turbine wheel and finished product rotor shaft, it can be fast, carry out the location restraint with turbine wheel and finished product rotor shaft reliably to make things convenient for outside welding set to carry out welding operation, guarantee the steady quality of the finished product turbine pivot of final production, have great production practice meaning.
Drawings
Fig. 1 is a cross-sectional view of a welding positioning device for a turbine impeller and a finished rotor shaft of a turbocharger provided by the present invention;
fig. 2 is a top view of a welding and positioning device for a turbine wheel and a finished rotor shaft of a turbocharger provided by the present invention;
fig. 3 is a front view of a positioning fixture body in the welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger provided by the present invention;
fig. 4 is a cross-sectional view of a positioning fixture body in the welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger provided by the present invention;
fig. 5 is a front view of a spindle sleeve in the welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger provided by the present invention;
fig. 6 is a cross-sectional view of a reducing shaft sleeve in the welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger provided by the present invention;
fig. 7 is an enlarged cross-sectional view of a splash guard in the welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger provided by the present invention;
in the figure: 1. the positioning fixture comprises a positioning fixture body, a main shaft sleeve, a reducing shaft sleeve, a first radial bearing, a second radial bearing, a main shaft sleeve, a reducing shaft sleeve, a main;
6. the anti-falling auxiliary disc 7, the adjusting spacer sleeve 8, the end cover 9, the compression pad 10 and the locking nut; 11. A drive pin;
100. a turbine wheel, 200, a finished rotor shaft;
101. the anti-falling auxiliary disc accommodating groove 102, the welding operation channel 103 and the shaft sleeve mounting cavity are formed in the shaft sleeve;
201. a first horizontal support platform 202 and a reducing shaft sleeve accommodating cavity;
301. a second horizontal support platform 302, a finished rotor shaft receiving cavity;
501. boss 601, turbine wheel holding tank.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 7, the utility model provides a welding and positioning device for a turbine impeller and a finished rotor shaft of a turbocharger, in particular to a high precision positioning technology and a quick clamping technology in the welding of the turbine impeller and the finished rotor shaft in the production of the turbocharger, and the utility model comprises a positioning clamp body 1;
the upper part of the positioning clamp body 1 is provided with a welding operation channel 102 (which is a hollow cavity) transversely distributed through;
an anti-falling auxiliary disc accommodating groove 101 is formed above the welding operation channel 102;
an anti-falling auxiliary disc 6 is placed in the anti-falling auxiliary disc accommodating groove 101;
a turbine impeller accommodating groove 601 with an upper opening and a lower opening is formed in the central position of the anti-falling auxiliary disc 6;
the turbine impeller 100 is vertically arranged in the turbine impeller accommodating groove 601;
below the welding operation channel 102, a vertically distributed shaft sleeve mounting cavity 103 is arranged;
a spindle sleeve 2 is inserted into the spindle sleeve mounting cavity 103 from top to bottom;
the main shaft sleeve 2 is internally provided with a reducing shaft sleeve accommodating cavity 202 which is vertically distributed;
the reducing shaft sleeve 3 is inserted into the upper part of the reducing shaft sleeve accommodating cavity 202;
the top of the reducing shaft sleeve 3 is fixedly connected with the top of the main shaft sleeve 2 (specifically through a plurality of screws distributed at intervals);
finished rotor shaft accommodating cavities 302 which are vertically distributed are formed in the reducing shaft sleeve 3;
a finished rotor shaft receiving cavity 302 into which the finished rotor shaft 200 is vertically inserted;
the top of finished rotor shaft 200 protrudes upwardly from finished rotor shaft receiving cavity 302;
the turbine wheel 100 is located directly above the finished rotor shaft 200;
In the present invention, a connecting shaft head is pre-processed at the center of the top of the finished rotor shaft 200;
an inner hole is pre-processed at the bottom of the turbine impeller 100 at a position corresponding to the connecting shaft head;
the connecting stub shaft at the top of the finished rotor shaft 200 is inserted into the internal bore at the bottom of the bucket wheel 100.
The utility model discloses in, on specifically realizing, the finished product rotor shaft holds cavity 302, with turbine wheel holding tank 601, is located same center axis.
In the present invention, in particular, two first centering bearings 41 are provided between the outer wall of the upper portion of the main shaft sleeve 2 and the inner wall of the shaft sleeve mounting cavity 103;
a second radial bearing 42 is arranged between the outer wall of the middle lower part of the main shaft sleeve 2 and the inner wall of the sleeve mounting cavity 103;
the first axial bearing 41 and the second axial bearing 42 are sleeved on the outer wall of the main shaft sleeve 2;
the outer wall of the shaft sleeve 2 is also sleeved with an adjusting spacer sleeve 7 which is distributed annularly;
the spacer 7 is adjusted to a position between the first and second radial bearings 41 and 42.
In the utility model, in the concrete implementation, the anti-falling auxiliary disc accommodating groove 101 is communicated with the middle part of the upper side of the welding operation channel 102;
a bushing installation cavity 103 communicating with the lower middle portion of the welding operation passage 102.
The utility model discloses in, on specifically realizing, the size of the first horizontal support platform 201 that the 2 tops of spindle sleeve have is greater than the open-top size of axle sleeve installation cavity 103.
The utility model discloses in, on specifically realizing, the size of the second horizontal support platform 301 that reducing shaft sleeve 3 tops have is greater than the open-top size that reducing shaft sleeve holds cavity 202.
In the utility model, in the concrete implementation, a tilting prevention auxiliary plate 6 is covered above a first horizontal supporting platform 201 arranged at the top of the main shaft sleeve 2 and a second horizontal supporting platform 301 arranged at the top of the reducing shaft sleeve 3;
the size of the anti-falling auxiliary plate 6 is larger than the size of the second horizontal support platform 301 arranged at the tops of the first horizontal support platform 201 and the reducing shaft sleeve 3, so that spatters caused by welding can be prevented, and the second horizontal support platform 301 arranged at the tops of the first horizontal support platform 201 and the reducing shaft sleeve 3 is damaged.
In particular, the anti-fall auxiliary disk 6 is located below a preset welding position between the turbine impeller 100 and the finished rotor shaft 200.
In concrete implementation, the bottom of the falling prevention auxiliary plate 6 is provided with bosses 501 distributed in a surrounding manner, and the bosses are covered on the outer wall of the top of the second horizontal support platform 301.
In the utility model, in the concrete implementation, the outer wall of the lower part of the main shaft sleeve 2 is sleeved with an end cover 8;
the top of the end cap 8, in contact with the bottom of the second axial bearing 42;
the peripheral edge of the end cover 8 is fixedly connected with the bottom of the positioning clamp body 1 through a plurality of screws distributed at intervals.
In particular, the outer wall of the lower part of the main shaft sleeve 2 is in threaded connection with a locking nut 10 at a position below the end cover 8;
between the locking nut 10 and the end cap 8, there is an annularly distributed pressure pad 9.
In the utility model, in the concrete implementation, a plurality of transmission pins 11 are distributed on the peripheral outer wall of the lower end of the main shaft sleeve 2 at equal intervals;
and a driving pin 11 for fixedly connecting a driving shaft (specifically, a rotating shaft of a driving motor provided therein) of an externally located vacuum electron beam welding machine (specifically, TW04 vacuum electron beam welding machine) with a lower end of the sleeve 2.
It should be noted that, based on the above technical solutions, it can be known that, for the utility model, the self-centering property of the first radial bearing and the second radial bearing is utilized, and the deviation of the parts before welding is restrained in a manner of positioning by the shaft lever of the parts, so that the deviation is not limited by the shape of the blades of the turbine impeller and the size of the hub, the influence caused by the inconsistency of the casting quality (machining precision) of the blank of the turbine impeller is avoided, and the clamping can be quickly carried out;
the utility model adopts the axial and radial positioning constraint of the workpiece, only the rotation dimension is reserved, the pressure applied by the workpiece during welding is ensured to be kept stable in the welding process, and the influence caused by overlarge verticality of the turbine impeller wheel back relative to the shaft lever after the workpiece is welded due to the welding stress is eliminated to the maximum extent, thereby realizing the welding of the turbine impeller and the finished product rotor shaft; when the design is carried out, the modularized design concept is integrated into the rush horse, the adaptive reducing shaft sleeve is adopted, the welding of finished rotor shafts with various shaft diameters can be met, and the rapid model change can be realized in batch production.
The utility model discloses, its axle diameter according to finished product rotor shaft designs the reducing axle sleeve of adaptation to be used for fixing a position finished product rotor shaft, turbine wheel is connected through the hole and the finished product rotor shaft of preprocessing, realizes from feeling relieved, utilizes outside welding equipment (vacuum electron beam welding machine promptly) from the pneumatic tail top in area, compresses tightly turbine wheel. And then the lower end of the main shaft sleeve is fixedly connected with a rotating shaft of a motor in the vacuum electron beam welding machine through a transmission pin so as to rotate, and finally, the continuous welding (along with the rotation, the connection welding is realized) of the welding position between the turbine impeller of the turbine rotating shaft and the finished product rotor shaft is realized.
It should be noted that the utility model discloses a for improving present technology method, improve production efficiency, reduction in production cost, and the positioner when carrying out electron beam welding of turbo charger turbine wheel and finished product rotor shaft that has researched.
In order to understand the technical solution of the present invention more clearly, the following describes the operation process of the present invention for installing and cooperating to perform welding.
Firstly, tool installation: the utility model discloses a welding position device installs in vacuum electron beam welding machine's tray through the location tang, once targets in place, just need take off when only maintaining. Before welding, selecting a corresponding matched reducing shaft sleeve 3 according to the diameter size of a finished rotor shaft 200, cleaning the contact surface of the reducing shaft sleeve 3, and naturally and smoothly installing the reducing shaft sleeve 3 into the main shaft sleeve 2; in addition, an appropriate anti-falling auxiliary disc 6 can be selected according to the maximum outer diameter of the turbine impeller 100, and the replacement is very simple and convenient.
And secondly, matching the processes of starting welding operation. The method comprises the following specific steps:
firstly, inserting a finished rotor shaft 200 into a reducing shaft sleeve 3 of the tool of the utility model;
then, the turbine impeller 100 is placed on the rotor shaft (the turbine impeller is provided with an inner hole, and the end part of the rotor shaft is provided with a small shaft head which is correspondingly arranged), so that the turbine impeller 100 can freely rotate on the finished rotor shaft 200 without a hairpin state;
then, will the utility model discloses place at vacuum electron beam welding machine bottom cylinder top, start vacuum electron beam welding machine's welding switch, push up on the cylinder of vacuum electron beam welding machine bottom, will the utility model discloses a vacuum welding room is sent into to the device, seals vacuum welding room simultaneously, and the tail top (from the pneumatic tail top in area) moves down on the vacuum electron beam welding machine top, compresses tightly turbine wheel 100.
Then, the lower end of the main shaft sleeve 2 is fixedly connected with a transmission shaft of a vacuum electron beam welding machine (specifically, a TW04 vacuum electron beam welding machine) through a transmission pin 11, the main shaft sleeve 2 rotates with parts to be welded (including a turbine impeller 100 and a finished rotor shaft 200 which are placed together) under the driving of the transmission shaft, after the vacuum degree of a vacuum welding chamber reaches a preset requirement, the vacuum electron beam welding machine sends out an electron beam for welding, and the joint of the turbine impeller 100 and the finished rotor shaft 200 is welded through a welding operation channel 102 on a positioning fixture body.
In particular, the TW04 vacuum electron beam welding machine is an existing vacuum electron beam welding machine, for example, a TW04 vacuum electron beam welding machine produced by the british CVE company can be used, a welding device and a welding positioning device of the welding machine are arranged in double stations, a rotary driving device is installed at the bottom of a working platform to drive the double stations to rotate by 180 degrees, an inlet and an outlet are formed in the bottom of a vacuum chamber, the welding positioning device can vertically lift under the driving of an air cylinder, and when the welding positioning device lifts, the welding positioning device is sealed with the bottom of the vacuum chamber to perform welding processing.
Compared with the prior art, the utility model provides a welding position device of turbo charger turbine wheel and finished product rotor shaft has following beneficial effect:
1. through the utility model provides a welding position device of turbo charger turbine wheel and finished product rotor shaft has solved the welding position difficult problem of turbine wheel and finished product rotor shaft, and the turbine wheel back of the body after the welding is less than 0.08mm with the straightness that hangs down of pole portion, and the welding position is beated and is less than 0.05mm, can satisfy the designing requirement completely. The adjustment and replacement of the whole tool are simple and convenient to operate, professional training is not needed, rapid type replacement can be realized, the production efficiency is greatly improved, the positioning in the welding process is stable and reliable, and the welding quality of the final finished turbine rotating shaft is effectively guaranteed.
2. The utility model directly adopts the shaft diameter of the finished rotor shaft to perform positioning welding, thereby ensuring the geometric tolerance requirement of the welded parts and meeting the design requirement of directly welding the turbine impeller and the finished rotor shaft; meanwhile, compared with the original production efficiency of reprocessing after welding, the production efficiency is greatly improved, and the production can be quickly switched to respond to the market order requirement.
To sum up, compare with prior art, the utility model provides a pair of turbo charger turbine wheel and finished product rotor shaft's welding position device, it can be fast, carry out location restraint with turbine wheel and finished product rotor shaft reliably to make things convenient for external welding device to carry out welding operation, guarantee the steady quality of final production's finished product turbine pivot, have great production practice meaning.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A welding and positioning device for a turbine impeller and a finished product rotor shaft of a turbocharger is characterized by comprising a positioning clamp body (1);
the upper part of the positioning clamp body (1) is provided with a welding operation channel (102) which transversely penetrates through and is distributed;
an anti-falling auxiliary disc accommodating groove (101) is formed above the welding operation channel (102);
an anti-falling auxiliary disc (6) is arranged in the anti-falling auxiliary disc accommodating groove (101);
a turbine impeller accommodating groove (601) with an upper opening and a lower opening is formed in the central position of the anti-falling auxiliary disc (6);
a turbine impeller (100) is vertically arranged in the turbine impeller accommodating groove (601);
a shaft sleeve mounting cavity (103) which is vertically distributed is arranged below the welding operation channel (102);
a spindle sleeve (2) is inserted into the shaft sleeve mounting cavity (103) from top to bottom;
the spindle sleeve (2) is internally provided with a reducing shaft sleeve accommodating cavity (202) which is vertically distributed;
the reducing shaft sleeve (3) is inserted into the upper part of the reducing shaft sleeve accommodating cavity (202);
the top of the reducing shaft sleeve (3) is fixedly connected with the top of the main shaft sleeve (2);
finished rotor shaft accommodating cavities (302) which are vertically distributed are arranged in the reducing shaft sleeve (3);
the finished rotor shaft accommodating cavity (302) is vertically inserted with the finished rotor shaft (200) in a penetrating way;
the top of the finished rotor shaft (200) protrudes upwards from the finished rotor shaft accommodating cavity (302);
the turbine wheel (100) is positioned right above the finished rotor shaft (200);
the turbine wheel (100) is connected to a finished rotor shaft (200).
2. The welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger as claimed in claim 1, wherein a connecting shaft head is pre-processed at the top center position of the finished rotor shaft (200);
an inner hole is pre-processed at the bottom of the turbine impeller (100) at a position corresponding to the connecting shaft head;
the connecting shaft head at the top of the finished rotor shaft (200) is inserted into an inner hole at the bottom of the vane wheel (100).
3. The apparatus for weld-locating a turbocharger turbine wheel to a finished rotor shaft as set forth in claim 1 wherein the finished rotor shaft receiving cavity (302) is located on the same central axis as the turbine wheel receiving groove (601).
4. The welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger as in claim 1, wherein two first radial bearings (41) are arranged between the upper outer wall of the main shaft sleeve (2) and the inner wall of the shaft sleeve mounting cavity (103);
a second radial bearing (42) is arranged between the outer wall of the middle lower part of the main shaft sleeve (2) and the inner wall of the shaft sleeve mounting cavity (103);
the first radial bearing (41) and the second radial bearing (42) are sleeved on the outer wall of the spindle sleeve (2);
the outer wall of the shaft sleeve (2) is also sleeved with an adjusting spacer sleeve (7) which is distributed annularly;
the position of the spacing sleeve (7) is adjusted between the first radial bearing (41) and the second radial bearing (42).
5. The welding fixture of turbocharger turbine wheel and finished rotor shaft according to claim 1, characterized in that, the fall prevention auxiliary disc accommodating groove (101), communicate with the upper middle part of the welding operation channel (102);
the shaft sleeve mounting cavity (103) is communicated with the lower middle part of the welding operation channel (102).
6. The welding fixture of turbocharger turbine wheel and finished rotor shaft as claimed in claim 1, characterized in that the spindle sleeve (2) has a top portion with a first horizontal support platform (201) of a size larger than the top opening of the sleeve mounting cavity (103);
the size of a second horizontal support platform (301) arranged at the top of the reducing shaft sleeve (3) is larger than the size of the top opening of the reducing shaft sleeve accommodating cavity (202).
7. The welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger as claimed in claim 6, wherein the anti-falling auxiliary disc (6) is covered above a first horizontal supporting table (201) arranged at the top of the main shaft sleeve (2) and a second horizontal supporting table (301) arranged at the top of the reducer shaft sleeve (3);
the size of the anti-falling auxiliary disc (6) is larger than the size of a second horizontal support platform (301) arranged at the tops of the first horizontal support platform (201) and the reducing shaft sleeve (3).
8. The welding fixture of a turbocharger turbine wheel and a finished rotor shaft as set forth in claim 7, characterized in that the anti-backup auxiliary disk (6) is located below a preset welding position between the turbine wheel (100) and the finished rotor shaft (200);
the bottom of the anti-falling auxiliary plate (6) is provided with bosses (501) distributed around, and the bosses are covered on the outer wall of the top of the second horizontal supporting platform (301).
9. The welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger as claimed in claim 1, wherein an end cover (8) is sleeved on the outer wall of the lower part of the main shaft sleeve (2);
the top of the end cover (8) is contacted with the bottom of the second radial bearing (42);
the peripheral edge of the end cover (8) is fixedly connected with the bottom of the positioning clamp body (1) through a plurality of screws distributed at intervals.
10. The welding and positioning device for the turbine impeller and the finished rotor shaft of the turbocharger as claimed in claim 1, characterized in that the lower outer wall of the main shaft sleeve (2) is further screwed with a lock nut (10) at a position below the end cover (8);
a pressing pad (9) is annularly distributed between the locking nut (10) and the end cover (8);
the peripheral outer wall of the lower end of the main shaft sleeve (2) is provided with a plurality of transmission pins (11) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313796.7U CN211991551U (en) | 2019-12-20 | 2019-12-20 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922313796.7U CN211991551U (en) | 2019-12-20 | 2019-12-20 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211991551U true CN211991551U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922313796.7U Active CN211991551U (en) | 2019-12-20 | 2019-12-20 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211991551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977297A (en) * | 2019-12-20 | 2020-04-10 | 天津北方天力增压技术有限公司 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
-
2019
- 2019-12-20 CN CN201922313796.7U patent/CN211991551U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977297A (en) * | 2019-12-20 | 2020-04-10 | 天津北方天力增压技术有限公司 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
| CN110977297B (en) * | 2019-12-20 | 2024-08-16 | 天津北方天力增压技术有限公司 | Welding positioning device for turbine impeller and finished rotor shaft of turbocharger |
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