CN214418199U - Auxiliary positioning fixture for turning inner hole of bearing seat - Google Patents
Auxiliary positioning fixture for turning inner hole of bearing seat Download PDFInfo
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- CN214418199U CN214418199U CN202120489326.0U CN202120489326U CN214418199U CN 214418199 U CN214418199 U CN 214418199U CN 202120489326 U CN202120489326 U CN 202120489326U CN 214418199 U CN214418199 U CN 214418199U
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- turning
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Abstract
The utility model discloses a bearing frame hole car processing assistance-localization real-time anchor clamps relates to aeroengine spare part maintenance field, solves under the inorganic benchmark condition that adds, bearing frame hole car processing size precision uncontrollable's problem. The utility model adopts the technical proposal that: the auxiliary positioning fixture for turning the inner hole of the bearing seat comprises a disc, wherein at least three positioning holes are formed in the edge of the disc and penetrate through the disc, the direction of the center line of each positioning hole is perpendicular to the plane of the disc, adaptive locking screws are arranged in the at least two positioning holes, the upper portions of the locking screws are rotating adjusting ends and are located on the top surface of the disc, and the lower portions of the locking screws penetrate through the positioning holes. The bearing seat is fixed on the bottom surface of the disc through the locking screw, and the bearing seat and the disc can be fixed relatively. When the inner hole of the bearing seat is lathed, the disc is aligned. The utility model discloses on shifting the bearing frame processing benchmark to anchor clamps, solved the inorganic difficult problem that adds the benchmark in bearing frame vibration material disk restoration back.
Description
Technical Field
The utility model relates to an aeroengine spare part maintenance technical field, concretely relates to be applicable to and utilize laser vibration material disk technique to restore aeroengine turbine supporting bearing frame in-process, carry out the assistance-localization real-time anchor clamps of car processing to the hole of bearing frame.
Background
The turbine supporting bearing seat of a certain type of aero-engine bears the radial load of a low-pressure turbine rotor in the running process of the engine, the radial load causes the fit position of the inner hole surface of the bearing seat and the bush to be abraded, the fit clearance is overlarge, and the bearing seat is stopped. Since the bearing housing is expensive, it is not economical to replace a new bearing housing. The method is a feasible repairing method for repairing the size of the position subjected to additive repair by turning after additive repair. Because the diameter of the inner hole of the bearing seat is phi 156.50+0.05mm, ovality not more than 0.015mm, and high requirement on dimensional precision; compared with a manufactured part, the bearing seat additive repairing inorganic datum addition method has the advantage that the size recovery difficulty is extremely high in a turning mode.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bearing frame hole car processing assistance-localization real-time anchor clamps solves under the inorganic benchmark condition that adds, bearing frame hole car processing size precision uncontrollable's problem.
The utility model adopts the technical proposal that: the auxiliary positioning fixture for turning the inner hole of the bearing seat comprises a disc, wherein at least three positioning holes are formed in the edge of the disc and penetrate through the disc, the direction of the center line of each positioning hole is perpendicular to the plane of the disc, adaptive locking screws are arranged in the at least two positioning holes, the upper portions of the locking screws are rotating adjusting ends and are located on the top surface of the disc, and the lower portions of the locking screws penetrate through the positioning holes.
Further, the method comprises the following steps: and a positioning pin is arranged in at least one positioning hole, the upper part of the positioning pin is positioned on the top surface of the disc, and the lower part of the positioning pin penetrates out of the positioning hole.
Further, the method comprises the following steps: the rotation adjusting end of the locking screw is provided with a pin hole, the direction of the pin hole is parallel to the plane of the disc, and a rotating pin is arranged in the pin hole.
Further, the method comprises the following steps: a bushing is arranged in a positioning hole of the disc, a sinking platform is arranged at the upper part of the positioning hole, a hanging platform matched with the sinking platform is arranged at the upper part of the bushing, and a locking screw and a positioning pin are both arranged in the bushing.
Further, the method comprises the following steps: the top surface of the disc is also provided with at least three hanging rings.
Specifically, the method comprises the following steps: the three rings are connected to form an equilateral triangle, the center of the equilateral triangle coincides with the center of the disc, a screw is arranged on the lower side of each ring, a screw hole matched with the screw of each ring is formed in the disc, and each ring is installed in the corresponding screw hole.
Specifically, the method comprises the following steps: the disc comprises an outer ring and an inner ring, at least three connecting pieces are arranged between the inner ring and the outer ring, and the positioning holes are located in the outer ring.
More specifically: the connecting piece is connected with the outer ring and the inner ring in a welding way, or the outer ring, the inner ring and the connecting piece are connected into a whole.
Further, the method comprises the following steps: the bottom of the disc is provided with a supporting structure, and the supporting structure is located within the range enclosed by the positioning holes of the disc.
Specifically, the method comprises the following steps: the supporting structure is a supporting ring which is connected to the bottom surface of the disc.
The utility model has the advantages that: the bearing seat is fixed on the bottom surface of the disc through the locking screw, and the bearing seat and the disc can be fixed relatively. When the bearing seat inner hole is lathed, only the disc needs to be aligned. The utility model discloses on shifting the bearing frame processing benchmark to anchor clamps, solved the inorganic difficult problem that adds the benchmark in bearing frame vibration material disk restoration back, add man-hour through the alignment anchor clamps hole beat, bearing frame hole machining precision reaches 0.02mm, the bearing frame after the processing satisfies the assembly operation requirement.
The auxiliary positioning clamp for turning the inner hole of the bearing seat comprises a positioning pin, and the positioning pin is used for positioning before locking through a locking screw, so that the disc and the bearing seat can be conveniently and accurately positioned. The rotating pin is arranged in the pin hole at the upper part of the locking screw, so that the locking screw can be directly and manually rotated conveniently, and the operation process is simplified. The top surface of disc still sets up rings, is convenient for hoist and mount and transports. The bottom of the disc is provided with a supporting structure, so that the disc can be conveniently placed.
Drawings
FIG. 1 is a top view of the embodiment of the positioning fixture for turning the inner hole of the bearing seat.
Fig. 2 is a side view of the embodiment shown in fig. 1.
Fig. 3 is an enlarged view of the area a in fig. 2.
Description of the drawings: the device comprises a disc 1, an outer ring 11, an inner ring 12, a connecting piece 13, a locking screw 2, a rotating pin 3, a bushing 4, a lifting ring 5 and a support ring 6.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figures 1-3, the utility model discloses bearing frame hole car processing assistance-localization real-time anchor clamps, including disc 1, disc 1 is solid construction or hollow structure, and disc 1 is hollow structure, can lighten the mass, practices thrift the cost. For example, the disc 1 comprises an outer ring 11 and an inner ring 12, the outer ring 11 and the inner ring 12 are concentric circles, and at least three connecting pieces 13, for example, six connecting pieces 13 are uniformly arranged between the inner ring 12 and the outer ring 11. The disc 1 is an integral structure, such as a welded connection between the connecting piece 13 and the outer ring 11 and the inner ring 12, or an integral structure connecting the outer ring 11, the inner ring 12 and the connecting piece 13.
The bottom of the disc 1 can also be provided with a supporting structure, and the supporting structure is positioned in the range enclosed by the positioning holes of the disc 1 so as to avoid the mutual interference of the supporting structure and the bearing seat when in use. For example, the support structure is a support frame, or the support structure is a support ring 6, and the support ring 6 is connected to the bottom surface of the disc 1.
The edge of the disc 1 is provided with at least three positioning holes, for example, the outer ring 11 is provided with the outer ring 11 along the center line, namely, the positioning holes are positioned on the same circular arc. The positioning holes penetrate through the disc 1, the direction of the center line of the positioning holes is perpendicular to the plane of the disc 1, the distribution and the number of the positioning holes on the disc are consistent with those of the bearing seats, the positioning holes can be uniformly arranged or arranged at unequal intervals, and as shown in fig. 1, the number of the positioning holes is 25. And adaptive locking screws 2 are arranged in the at least two positioning holes, the locking screws 2 are used for relatively fixing the disc 1 and the bearing seat, and the bearing seat is positioned on the bottom surface of the disc 1 after the relative fixation. The upper part of the locking screw 2 is a rotation adjusting end and is located on the top surface of the disc 1, for example, the rotation adjusting end is a nut, or referring to fig. 3, the rotation adjusting end of the locking screw 2 is provided with a pin hole, the direction of the pin hole is parallel to the plane of the disc 1, and the rotation pin 3 is placed in the pin hole. The rotating pin 3 is in clearance fit with the pin hole, so that the locking screw 2 can be directly and manually rotated. The lower part of the locking screw 2 penetrates out of the positioning hole and is used for being in threaded connection with the bearing seat.
And each positioning hole of the disc 1 can be internally provided with a locking screw 2. Or, only one part of the positioning holes are provided with the locking screws 2, and the other part of the positioning holes are provided with the positioning pins. The upper part of the locating pin is positioned on the top surface of the disc 1, and the lower part of the locating pin penetrates through the locating hole. The number of the locating pins is at least one, and the locating pins are used for enabling the disc 1 and the bearing seat to be located oppositely, so that the disc 1 and the bearing seat can be fixed relatively through the locking screws 2.
The locking screw 2 and the locating pin can be directly arranged in the locating hole of the disc 1. Or, referring to fig. 3, a bushing 4 is arranged in the positioning hole, and the locking screw 2 and the positioning pin are both arranged in the bushing 4. In order to facilitate the placement of the bushing 4, the upper part of the positioning hole is provided with a sinking platform, and the upper part of the bushing 4 is provided with a hanging platform matched with the sinking platform.
In order to facilitate the movement of the disc 1, the top surface of the disc 1 is also provided with at least three suspension rings 5. For example, referring to fig. 1, the hanging rings 5 are three, and the three hanging rings 5 are connected at the positions to form an equilateral triangle, and the center of the equilateral triangle coincides with the center of the disk 1. The three slings 5 are provided for the purpose of keeping balance during hoisting. Rings 5 can be fixedly connected to disc 1 or can be dismantled and be connected to disc 1, for example rings 5's downside sets up the screw rod, sets up the screw hole with rings 5's screw rod adaptation on disc 1, and rings 5's screw rod is installed in the screw hole.
Taking the machining of the inner hole of the bearing seat of a certain type of aircraft engine as an example, the following description is given to the use process of the present invention. Firstly, hoisting a bearing seat on a vertical lathe, hoisting a disc 1 to the mounting edge of the bearing seat through a hoisting ring 5, inserting a locking screw 2 into a positioning hole and relatively locking the bearing seat and the disc 1; then, rotating a lathe chuck to accurately align the disc 1; and finally, turning to ensure that the machining position precision reaches 0.02 mm.
Claims (10)
1. Supplementary positioning fixture of bearing frame hole car processing, its characterized in that: the disc locking device comprises a disc (1), wherein at least three positioning holes are formed in the edge of the disc (1), the positioning holes penetrate through the disc (1), the direction of the center line of each positioning hole is perpendicular to the plane of the disc (1), adaptive locking screws (2) are arranged in the at least two positioning holes, the upper portions of the locking screws (2) are rotating adjusting ends and are located on the top surface of the disc (1), and the lower portions of the locking screws (2) penetrate through the positioning holes.
2. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 1, wherein: and a positioning pin is arranged in at least one positioning hole, the upper part of the positioning pin is positioned on the top surface of the disc (1), and the lower part of the positioning pin penetrates out of the positioning hole.
3. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 1, wherein: the rotation adjusting end of the locking screw (2) is provided with a pin hole, the direction of the pin hole is parallel to the plane of the disc (1), and a rotating pin (3) is arranged in the pin hole.
4. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 2, wherein: the positioning hole of the disc (1) is internally provided with a bushing (4), the upper part of the positioning hole is provided with a sinking platform, the upper part of the bushing (4) is provided with a hanging platform matched with the sinking platform, and the locking screw (2) and the positioning pin are both arranged in the bushing (4).
5. The auxiliary positioning fixture for turning the inner hole of the bearing seat as claimed in any one of claims 1 to 4, wherein: the top surface of the disc (1) is also provided with at least three hanging rings (5).
6. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 5, wherein: rings (5) are three, and three rings (5) position links to each other and can form equilateral triangle to equilateral triangle's center and the center coincidence of disc (1), the downside of rings (5) sets up the screw rod, sets up the screw with the screw rod adaptation of rings (5) on disc (1), and rings (5) are installed in the screw rod.
7. The auxiliary positioning fixture for turning the inner hole of the bearing seat as claimed in any one of claims 1 to 4, wherein: the disc (1) comprises an outer ring (11) and an inner ring (12), at least three connecting pieces (13) are arranged between the inner ring (12) and the outer ring (11), and the positioning holes are located in the outer ring (11).
8. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 7, wherein: the connecting piece (13) is connected with the outer ring (11) and the inner ring (12) in a welding way, or the outer ring (11), the inner ring (12) and the connecting piece (13) are connected into a whole.
9. The auxiliary positioning fixture for turning the inner hole of the bearing seat as claimed in any one of claims 1 to 4, wherein: the bottom of the disc (1) is provided with a supporting structure, and the supporting structure is located within the range surrounded by the positioning holes of the disc (1).
10. The auxiliary positioning clamp for turning the inner hole of the bearing seat as claimed in claim 9, wherein: the supporting structure is a supporting ring (6), and the supporting ring (6) is connected to the bottom surface of the disc (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120489326.0U CN214418199U (en) | 2021-03-08 | 2021-03-08 | Auxiliary positioning fixture for turning inner hole of bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120489326.0U CN214418199U (en) | 2021-03-08 | 2021-03-08 | Auxiliary positioning fixture for turning inner hole of bearing seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214418199U true CN214418199U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120489326.0U Active CN214418199U (en) | 2021-03-08 | 2021-03-08 | Auxiliary positioning fixture for turning inner hole of bearing seat |
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| CN (1) | CN214418199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650025A (en) * | 2022-10-12 | 2023-01-31 | 临沭县金易达机械配件有限公司 | Hoisting device is used in production of good bearing frame of stability |
-
2021
- 2021-03-08 CN CN202120489326.0U patent/CN214418199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650025A (en) * | 2022-10-12 | 2023-01-31 | 临沭县金易达机械配件有限公司 | Hoisting device is used in production of good bearing frame of stability |
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