CN113369839A - High-precision bushing assembling and centering device and bushing centering and assembling method - Google Patents
High-precision bushing assembling and centering device and bushing centering and assembling method Download PDFInfo
- Publication number
- CN113369839A CN113369839A CN202110582993.8A CN202110582993A CN113369839A CN 113369839 A CN113369839 A CN 113369839A CN 202110582993 A CN202110582993 A CN 202110582993A CN 113369839 A CN113369839 A CN 113369839A
- Authority
- CN
- China
- Prior art keywords
- shaft
- supporting
- centering
- shaft sleeve
- bushing
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Abstract
The invention relates to the field of bush assembly, in particular to a high-precision bush assembly centering device and a bush centering assembly method.
Description
Technical Field
The invention relates to the field of bushing assembly, in particular to a high-precision bushing assembly centering device and a bushing centering assembly method.
Background
The bush is a liner part between the shaft and the shaft seat, can reduce the abrasion of the shaft and the shaft seat and improve the matching precision of the shaft hole, is a high-precision assembly part and is widely applied to various industries. When the bushing is installed, the coaxiality of the bushing and the shaft seat hole can obviously affect the assembly quality of the bushing. At present, the bushing is mainly installed in the following way: a coaxial stepped mandrel is used as a guiding tool for installing a bush, the diameter of one end of the mandrel is slightly smaller than the diameter of a shaft seat hole by 1-2mm, the diameter of the other end of the mandrel is slightly smaller than the inner diameter of the bush by 1-2mm, and the bush is guided to be matched with the shaft hole through clearance fit.
The method can basically meet the assembly requirements for the assembly of the bushing with low precision requirements, but for the assembly of the bushing with high precision, the existence of the fit clearance greatly influences the coaxiality of the bushing and the shaft seat hole, so that the bushing and the shaft seat hole are locally excessively extruded in the installation process, even the phenomena of crushing, cracking and the like occur, the coaxiality of the shaft seat hole and the shaft seat hole cannot be ensured, the assembly of the bushing is finally failed, and the corresponding part is damaged and scrapped.
Disclosure of Invention
In order to improve the assembly coaxiality of the bushing and realize high-quality and high-efficiency installation of the high-precision bushing, the invention provides a high-precision bushing assembly centering device and a bushing centering assembly method, which are used for ensuring the coaxiality of the bushing and a shaft seat hole during installation.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-precision bush assembling centering device (hereinafter referred to as a centering device) comprises a centering shaft, a supporting shaft sleeve, a bush supporter and a shaft seat hole supporter; the supporting shaft sleeve is of a hollow cylinder structure so as to be convenient for determining the position of a central shaft; a fixed shaft hole is formed in the axis of the top of the supporting shaft sleeve and used for radially fixing the fixed shaft, so that the fixed shaft and the supporting shaft sleeve can keep a coaxial state at any time; a threaded centering shaft nail for connecting the centering shaft is fixed at the axis of the bottom of the supporting shaft sleeve and used for preventing the centering shaft from loosening; the top of the supporting shaft sleeve is detachably provided with a shaft cover for pressing the bushing, preferably, in order to avoid the bushing from mechanical damage caused by the shaft cover, the bottom of the shaft cover is provided with a rubber pad; the shaft cover is provided with a shaft penetrating hole at the axis for avoiding the fixed shaft so as to facilitate the operation of rotating the fixed shaft above the movable shaft cover. Specifically, the centering shaft and the supporting shaft sleeve are coaxially arranged, after one end of the centering shaft (the end corresponding to the bottom of the centering shaft) passes through the through shaft hole, is inserted into the supporting shaft sleeve through the centering shaft hole, the other end of the centering shaft (namely, the end of the centering shaft corresponding to the top part) is positioned outside the supporting shaft sleeve, the specific position of the end positioned outside the supporting shaft sleeve is changed according to the change of the using state of the centering device, that is, when the centering shaft is connected with the threaded centering pin to the maximum extent, depending on the length of the centering shaft, the end of the centering shaft corresponding to the top portion may be located inside the through-hole (when the centering shaft is short) or above the through-hole (when the centering shaft is long), when the centering shaft is separated from the threaded centering nail and is in a natural state (under the condition of not being pressed downwards), one end of the centering shaft, corresponding to the top, is positioned above the shaft penetrating hole. The bottom of centering axle is provided with the thread groove that is used for connecting screw thread dead axle nail, and specifically, the centering axle holds in the palm can dismantle swing joint with screw thread dead axle nail through the thread groove. The bushing support comprises an adjusting cone I and at least three bushing support units; the adjusting cone I is of a circular truncated cone structure, the bottom area of the top of the adjusting cone I is larger than that of the bottom of the adjusting cone I, and the adjusting cone I moves circumferentially through control so as to control the bushing supporting unit to move radially along the supporting shaft sleeve. Specifically, adjust awl I and be in the inside of supporting sleeve to with the coaxial fixed connection of centering axle, for the convenience of dismantling, can set up stop nut respectively at the upper and lower both ends of adjusting awl I, two stop nut extrude adjusting awl I under the joining action of centering axle, make centering axle and I relatively fixed of adjusting awl, preferred, the relative fixed of here is fixed axially and radially ascending fixed. All the bushing supporting units are arranged at equal intervals along the circumferential direction of the adjusting cone I, avoidance holes I which correspond to the bushing supporting units one by one are formed in the side face of the supporting shaft sleeve, and the bushing supporting units are arranged in the avoidance holes I; one side of the bushing supporting unit is obliquely arranged corresponding to the side slope of the adjusting cone I, is positioned in the supporting shaft sleeve and is used for being in contact fit with the adjusting cone I; the other side of the bushing supporting unit is positioned at the outside of the supporting shaft sleeve for being in close contact with the supporting shaft sleeve. The shaft seat hole support is positioned below the bushing support seat and comprises a support spring, an adjusting cone II and at least three shaft seat wall support units; the adjusting cone II is of a circular truncated cone structure, the bottom area of the top of the adjusting cone II is smaller than that of the bottom of the adjusting cone II, and the axial direction of the adjusting cone II is controlled to move circumferentially so as to control the axial seat wall supporting unit to move along the radial direction of the supporting shaft sleeve. Specifically, the adjusting cone II is positioned inside the supporting shaft sleeve, the bottom of the adjusting cone II is connected with the bottom of the supporting shaft sleeve through a supporting spring, when the centering shaft is separated from the threaded centering nail and is in a natural state (under the condition of not being pressed downwards), the adjusting cone II is positioned at the highest position which can be reached based on the supporting action of the supporting spring, and at the moment, the shaft seat wall supporting unit extends out of the shaft sleeve, the length is minimum, and the part of the centering device for installing the shaft seat hole supporter is conveniently placed in the shaft seat hole; the axle center department of adjusting awl II is provided with the screw hole, is provided with external screw thread structure I on the centering shaft, and the screw hole mutually supports with external screw thread structure I, makes and adjusts II and centering shaft screw thread swing joint of awl, makes and adjusts II and centering shaft and can carry out relative motion along the axial. The side surface of the supporting shaft sleeve is provided with avoidance holes II which are in one-to-one correspondence with the shaft seat wall supporting units, and the shaft seat wall supporting units are arranged in the avoidance holes II; one side of the shaft seat wall supporting unit is located in the supporting shaft sleeve and is in sliding connection with the adjusting cone II along the gradient direction of the side face of the adjusting cone II, and the other side of the shaft seat wall supporting unit is located outside the supporting shaft sleeve and is used for being in close contact with the inner wall of the shaft seat hole.
Preferably, the supporting shaft sleeve comprises a sleeve body, an upper limiting cover and a lower limiting cover; the cover body is the hollow cylinder structure of the uncovered setting in both ends, and the both ends of the cover body are provided with internal thread structure respectively, go up the spacing lid and pass through internal thread structure detachable and connect in the top of the cover body, lower spacing lid passes through internal thread structure detachable and sets up in the bottom of the cover body. Furthermore, the dead axle hole sets up on the upper limit is covered, and the screw thread dead axle nail sets up on the lower limit is covered, adjusts awl II and is connected with lower limit lid through supporting spring. After dismantling the upper limit cover and the lower limit cover, the assembly of the structure inside the sleeve body can be conveniently realized, the structure of the technical scheme is easier to realize, and the disassembly of the inner structure of the sleeve body is facilitated at the same time, so that the convenience of part replacement is realized.
Preferably, one end of the supporting shaft sleeve, which is close to the top, is provided with an external thread structure II for connecting a shaft cover. The connecting structure has the advantages that the connecting structure is simple and easy to realize due to the adoption of the threaded mode, and the connecting strength is ensured (namely, the stability and the reliability required by pressing the bushing are met) under the condition of convenient installation and disassembly.
Preferably, the top of the centering shaft is provided with a connecting end head for matching with a wrench. Through the assistance of spanner, can easily realize the rotatory work of centering axle, and can furthest avoid operating personnel's hand injury.
Preferably, the axle center department of supporting axle sleeve bottom has seted up the through-nail hole, based on the preferred structure of supporting axle sleeve, the through-nail hole sets up and covers in lower spacing, the effect in through-nail hole is the position of the quick definite support center axle, in order to realize the quick installation of high accuracy of screw thread dead axle nail, the nail body of screw thread dead axle nail inserts the inside of supporting axle sleeve through the through-nail hole, the hood of screw thread dead axle nail and the bottom fixed connection of supporting axle sleeve, this structure is when adopting the holding power of lower spacing lid to overcome and connect the dead axle, the pulling force that screw thread dead axle nail received, can reduce the intensity requirement that screw thread dead axle nail and lower spacing lid are connected from this.
The bushing supporting unit is used for supporting the inner wall of a bushing and can be only a right-angle trapezoidal plate I, in the process of using the centering device, the oblique waist of the right-angle trapezoidal plate I is matched with the adjusting cone I, the straight waist edge of the right-angle trapezoidal plate I is used for being in close contact with the bushing, however, in order to avoid mechanical damage to the bushing caused by the right-angle trapezoidal plate I, the bushing supporting unit is preferable and comprises the right-angle trapezoidal plate I, a ball I and a ball cover I, the ball I is in rolling connection with the right-angle trapezoidal plate I through the ball cover I, sliding grooves I are respectively arranged at the upper bottom and the lower bottom of the right-angle trapezoidal plate I, and a separation preventing protrusion I is arranged at one end, located inside the supporting shaft sleeve, of each sliding groove I and used for preventing the bushing supporting unit from falling off the supporting bushing; dodge be provided with in the hole I be used for with I complex protruding structure I of spout, protruding structure I and I cooperation of spout can prevent to a certain extent that bush supporting element from rocking.
The shaft seat wall supporting unit is used for supporting the inner wall of the bushing and can be only a right-angle trapezoidal plate II, in the process of using the centering device, the oblique waist of the right-angle trapezoidal plate II is matched with the adjusting cone II, the straight waist edge of the right-angle trapezoidal plate II is used for being in close contact with the inner wall of the shaft sleeve hole, but in order to avoid mechanical damage to the shaft seat caused by the right-angle trapezoidal plate II, the shaft seat wall supporting unit is preferably selected to comprise the right-angle trapezoidal plate II, a ball II and a ball cover II, the ball II is in rolling connection with the right-angle trapezoidal plate II through the ball cover II, the upper bottom and the lower bottom of the right-angle trapezoidal plate II are respectively provided with a sliding groove II, one end, located inside the supporting shaft sleeve, of the sliding groove II is provided with a separation preventing protrusion II for preventing the shaft seat wall supporting unit from falling off the supporting shaft sleeve, a protrusion structure II matched with the sliding groove II is arranged in the avoiding hole II, and the protrusion structure II is matched with the sliding groove II, the shaft seat wall supporting unit can be prevented from shaking to a certain extent.
Preferably, the side of adjusting awl II is provided with the bar arch with axle bed wall supporting element one-to-one, be provided with on the oblique waist of right angle trapezoidal plate II be used for with the protruding complex line type spout of bar, and the cross section of bar arch and line type spout all is "T" type, the cooperation structure of bar arch with the line type spout has been had, make axle bed wall supporting element and II constantly keep connected state of adjusting awl, it does not take place to rotate to ensure to adjust awl II, from this, through rotatory centering axle, can control centering axle and adjust and take place relative motion along the axial between the awl II, through rising and the decline of control regulation awl II simultaneously, can realize control axle bed wall supporting element along the outside and the inside removal of the axle of supporting bush.
Based on the high-precision bushing assembling and centering device, the technical scheme provides a bushing centering assembling method which is characterized by comprising the following steps of:
s1, adjusting the centering device, namely, rotating the centering shaft in the positive direction to enable the centering shaft to be separated from the threaded centering nail, and shortening the distance between the bottom of the centering shaft and the top of the adjusting cone II under the condition that the centering shaft is not separated from the threaded hole;
s2, axially pressing the centering shaft to make the adjusting cone II move towards the direction close to the bottom of the supporting shaft sleeve and make the shaft seat wall supporting unit move towards the inside of the supporting shaft sleeve until the shaft seat hole supporter can be put into the shaft seat hole;
s3, maintaining the force of pressing the centering shaft, putting the part of the supporting shaft sleeve for installing the shaft seat hole supporter into the shaft seat hole, and then stopping pressing the centering shaft, so that the adjusting cone II moves towards the direction far away from the bottom of the supporting shaft sleeve under the action of the supporting spring, and simultaneously the shaft seat wall supporting units move towards the outside of the supporting shaft sleeve until all the shaft seat wall supporting units are in close contact with the inner wall of the shaft seat hole;
s4, sleeving the bush on the part of the support shaft sleeve provided with the bush support, and then installing the shaft cover on the top of the support shaft sleeve;
s5, reversely rotating the centering shaft to enable the adjusting cone I and the centering shaft to move together towards the direction close to the bottom of the supporting shaft sleeve, wherein the centering shaft is gradually in threaded connection with the threaded centering screw, and the bushing supporting units move towards the outside of the supporting shaft sleeve under the action of the adjusting cone I until all the bushing supporting units are in close contact with the bushings, and then stopping rotating the centering shaft;
s6, axially pressing from the top of the shaft cover, and putting the bush and the part of the support shaft sleeve provided with the bush support into the shaft seat hole;
and S7, detaching the shaft cover from the support shaft sleeve, and then taking out the rest part of the centering device from the lower part of the shaft seat hole, namely completing the centering assembly of the bush.
Preferably, in the process of rotating the fixed shaft, a wrench is used for connecting the connecting end head of the fixed shaft to assist in rotation.
The beneficial effect that this technical scheme brought:
the technical scheme discloses a simple auxiliary tool which is ingenious in structure and easy to control, when the auxiliary tool is used for guiding the bushing to be sleeved, the auxiliary tool is tightly matched with the bushing and the shaft seat, a fit clearance is eliminated, the coaxiality between the bushing and the shaft seat is obviously improved, and the assembly quality of the bushing is obviously improved; the bush support unit (shaft seat wall support unit) of the bush support (shaft seat hole support) can move in the radial direction of the support shaft sleeve within a certain range, so that the use requirements of bushes (shaft seat holes) with different diameters can be met, and the technical scheme has high universality.
Drawings
FIG. 1 is a schematic structural view of a centering device in use;
FIG. 2 is a front cross-sectional structural schematic view of a centering device;
FIG. 3 is a schematic view of the sheath;
FIG. 4 is a front cross-sectional structural view of the axle cap;
FIG. 5 is a front cross-sectional structural view of the liner support;
FIG. 6 is a schematic cross-sectional front view of the axle seat hole support;
FIG. 7 is a schematic top view of the adjusting cone II;
FIG. 8 is a schematic top view of the liner support unit;
FIG. 9 is a schematic sectional front view of the centering shaft;
in the figure:
1. a shaft sleeve; 1.1, a sleeve body; 1.1.1, an internal thread structure; 1.1.2, an external thread structure II; 1.1.3, avoiding holes I; 1.1.4, a convex structure I; 1.1.5, avoiding holes II; 1.1.6, a convex structure II; 1.2, an upper limiting cover; 1.2.1, a dead axle hole; 1.3, a lower limit cover; 1.3.1, a nail penetration hole; 2. a shaft cover; 2.1, a shaft penetrating hole; 3. a centering shaft; 3.1, connecting end heads; 3.2, thread grooves; 3.3, an external thread structure I; 4. a bushing supporter; 4.1, adjusting a cone I; 4.2, a right-angle trapezoidal plate I; 4.2.1, a chute I; 4.2.2, a separation-preventing bulge I; 4.3, rolling balls I; 4.4, a ball cover I; 4.5, a limit nut; 5. a pedestal hole supporter; 5.1, adjusting a cone II; 5.1.1, a threaded hole; 5.1.2, strip-shaped bulges; 5.2, a right-angle trapezoidal plate II; 5.2.1, a chute II; 5.2.2, a separation-preventing bulge II; 5.2.3, a linear chute; 5.3, a ball II; 5.4, a ball cover II; 5.5, supporting the spring; 6. a rubber pad; 7. a threaded fixed-axis nail; 8. tightening the screw; 9. a shaft seat; 9.1, shaft seat holes; 10. a bushing.
Detailed Description
The invention is further described in the following with reference to the drawings and examples, but it should not be understood that the invention is limited to the examples below, and variations and modifications in the field of the invention are intended to be included within the scope of the appended claims without departing from the spirit of the invention.
Example 1
The embodiment discloses a high-precision bush 10 assembling and centering device, which is a basic embodiment of the invention and comprises a centering shaft 3, a supporting shaft sleeve 1, a bush supporter 4 and a shaft seat hole supporter 5; the supporting shaft sleeve 1 is of a hollow cylindrical structure, a dead axle hole 1.2.1 is formed in the axis of the top of the supporting shaft sleeve 1, and a threaded dead axle nail 7 used for connecting a dead axle shaft 3 is fixed at the axis of the bottom of the supporting shaft sleeve 1; the top of the supporting shaft sleeve 1 is detachably provided with a shaft cover 2 (the bottom of the shaft cover 2 is provided with a rubber pad 6) for pressing the bushing 10, and the shaft center of the shaft cover 2 is provided with a shaft penetrating hole 2.1; the centering shaft 3 and the supporting shaft sleeve 1 are coaxially arranged, one end of the centering shaft 3 penetrates through the shaft penetrating hole 2.1 and then is inserted into the supporting shaft sleeve 1 through the shaft penetrating hole 1.2.1, and the other end of the centering shaft 3 is positioned outside the supporting shaft sleeve 1; the bottom of the centering shaft 3 is provided with a thread groove 3.2 for connecting a thread centering shaft nail 7; the bushing supporter 4 comprises an adjusting cone I4.1 and at least three bushing 10 supporting units; the adjusting cone I4.1 is in a round table structure, and the bottom area of the top of the adjusting cone I4.1 is larger than that of the bottom of the adjusting cone I; the adjusting cone I4.1 is positioned inside the supporting shaft sleeve 1 and is coaxially and fixedly connected with the centering shaft 3, all the bushing 10 supporting units are arranged at equal intervals along the circumferential direction of the adjusting cone I4.1, the side surface of the supporting shaft sleeve 1 is provided with avoiding holes I1.1.3 which are in one-to-one correspondence with the bushing 10 supporting units, and the bushing 10 supporting units are arranged in the avoiding holes I1.1.3; one side of the supporting unit of the bush 10 is obliquely arranged corresponding to the side slope of the adjusting cone I4.1 and is positioned in the supporting shaft sleeve 1 and is used for being in contact fit with the adjusting cone I4.1; the other side of the supporting unit of the bush 10 is positioned outside the supporting shaft sleeve 1 for being in close contact with the supporting shaft sleeve 1; the shaft seat hole support 5 is positioned below the supporting seat of the bushing 10, and the shaft seat hole support 5 comprises a support spring 5.5, an adjusting cone II 5.1 and at least three shaft seat 9 wall support units; the adjusting cone II 5.1 is in a round table structure, and the bottom area of the top of the adjusting cone II 5.1 is smaller than that of the bottom of the adjusting cone II; the adjusting cone II 5.1 is positioned inside the supporting shaft sleeve 1, and the bottom of the adjusting cone II 5.1 is connected with the bottom of the supporting shaft sleeve 1 through a supporting spring 5.5; a threaded hole 5.1.1 is formed in the axis of the adjusting cone II 5.1, an external thread structure I3.3 is arranged on the centering shaft 3, and the threaded hole 5.1.1 is matched with the external thread structure I3.3, so that the adjusting cone II 5.1 is movably connected with the centering shaft 3 through threads; the side surface of the supporting shaft sleeve 1 is provided with avoidance holes II 1.1.5 which are in one-to-one correspondence with the shaft seat 9 wall supporting units, and the shaft seat 9 wall supporting units are arranged in the avoidance holes II 1.1.5; one side of the shaft seat 9 wall supporting unit is positioned in the supporting shaft sleeve 1 and is in sliding connection with the adjusting cone II 5.1 along the gradient direction of the side surface of the adjusting cone II 5.1, and the other side of the shaft seat 9 wall supporting unit is positioned outside the supporting shaft sleeve 1 and is used for being in close contact with the inner wall of the shaft seat hole 9.1.
In practical use, the centering device needs to be adjusted first, so as to retract the shaft seat 9 wall supporting unit (controlling the shaft seat 9 wall supporting unit to move towards the inside of the supporting shaft sleeve 1 along the radial direction of the supporting shaft sleeve 1), and prepare for placing the centering device in the shaft seat hole 9.1. Specifically, whether the spindle 3 is connected with the threaded spindle nail 7 is judged by observing the length of the part of the spindle 3 outside the support shaft sleeve 1; when the part of the centering shaft 3 positioned outside the supporting shaft sleeve 1 is longer, the centering shaft 3 is not connected with the threaded centering shaft nail 7, and the centering shaft 3 can be properly rotated to shorten the distance between the bottom of the centering shaft 3 and the top of the adjusting cone II 5.1, so that an adjusting space is reserved for the bush support 4; when the part of the centering shaft 3 positioned outside the supporting shaft sleeve 1 is short, the fact that the centering shaft 3 is connected with the threaded centering shaft nail 7 is indicated, the centering shaft 3 needs to be rotated to break the connection between the centering shaft 3 and the threaded centering shaft nail 7, the centering shaft 3 and the adjusting cone I4.1 move upwards together with the adjusting cone II 5.1 under the action of the supporting spring 5.5 on the adjusting cone II 5.1 until the adjusting cone II 5.1 is at the highest point which can be reached, the centering shaft 3 can be rotated properly again at the moment to shorten the distance between the bottom of the centering shaft 3 and the top of the adjusting cone II 5.1, an adjusting space is reserved for the bushing supporter 4, the centering shaft 3 is pressed downwards, the adjusting cone I4.1 and the adjusting cone II 5.1 move downwards together with the centering shaft 3 until the adjusting cone II 5.1 is at the lowest point which can be reached, and the shaft seat 9 wall supporting unit is in the maximum retracting state at the moment; then putting the part of the supporting shaft sleeve 1 for mounting the shaft seat hole supporter 5 into the shaft seat hole 9.1, loosening the force for pressing the centering shaft 3, making the adjusting cone II 5.1 move towards the direction far away from the bottom of the supporting shaft sleeve 1 under the action of the supporting spring 5.5, and making the shaft seat 9 wall supporting unit move towards the outside of the supporting shaft sleeve 1 at the same time until all the shaft seat 9 wall supporting units are tightly contacted with the inner wall of the shaft seat hole 9.1, at the moment, the supporting shaft sleeve 1 is coaxial with the shaft seat hole 9.1, and at the same time, the lining 10 supporting unit is in a retracting state to the maximum extent; sleeving the bush 10 on the part of the support shaft sleeve 1 provided with the bush support 4, and then installing the shaft cover 2 on the top of the support shaft sleeve 1; then, the centering shaft 3 is rotated, the adjusting cone I4.1 and the centering shaft 3 move together towards the direction close to the bottom of the supporting shaft sleeve 1, the centering shaft 3 is gradually in threaded connection with the threaded centering nail 7, the bushing 10 supporting units move towards the outside of the supporting shaft sleeve 1 under the action of the adjusting cone I4.1, and the centering shaft 3 stops rotating until all the bushing 10 supporting units are in close contact with the bushings 10; axially pressing from the top of the shaft cover 2, and putting the bush 10 and the part of the support shaft sleeve 1 provided with the bush support 4 into the shaft seat hole 9.1; finally, the shaft cover 2 is detached from the support sleeve 1, and the remaining part of the centering device is removed from below the bearing bore 9.1, thereby completing the centering assembly of the bush 10.
The technical scheme discloses a simple auxiliary tool which is ingenious in structure and easy to control, when the auxiliary tool is used for guiding the bush 10 to be assembled, the auxiliary tool is tightly matched with the bush 10 and the shaft seat 9, the fit clearance is eliminated, the coaxiality between the bush 10 and the shaft seat 9 is obviously improved, and the assembly quality of the bush 10 is obviously improved; the bush 10 supporting unit (the shaft seat 9 wall supporting unit) of the bush supporter 4 (the shaft seat hole supporter 5) can move along the radial direction of the supporting shaft sleeve 1 within a certain range, so that the use requirements of bushes 10 (shaft seat holes 9.1) with different diameters can be met, and the technical scheme has great universality.
Example 2
The embodiment discloses a high-precision bushing 10 assembling and centering device, which is a preferred embodiment of the invention, namely in embodiment 1, a supporting shaft sleeve 1 comprises a sleeve body 1.1, an upper limiting cover 1.2 and a lower limiting cover 1.3; the sleeve body 1.1 is of a hollow cylindrical structure with two open ends, the two ends of the sleeve body 1.1 are respectively provided with an internal thread structure 1.1.1, the upper limit cover 1.2 is detachably connected to the top of the sleeve body 1.1 through the internal thread structure 1.1.1, and the lower limit cover 1.3 is detachably arranged at the bottom of the sleeve body 1.1 through the internal thread structure 1.1.1; the supporting shaft sleeve 1 is provided with an external thread structure II 1.1.2 near the top for connecting the shaft cover 2, which provides a connection base between the centering shaft 3 and the threaded centering shaft nail 7.
This technical scheme in-service use, with the back of demolising of upper limit cover 1.2 and lower limit cover 1.3, can be convenient for realize being in the equipment of the inside structure of the cover body 1.1, make this technical scheme's structure realize more easily, made things convenient for the dismantlement of the internal structure of the cover body 1.1 simultaneously to realize the convenience of renewal part. Further, when the moving range of the bushing 10 supporting unit (shaft seat 9 wall supporting unit) cannot meet the use requirement of the actual bushing 10 (shaft seat hole 9.1), the upper limiting cover 1.2 (lower limiting cover 1.3) is removed, then the size requirement of the bushing 10 (shaft seat hole 9.1) with different diameters is met by replacing the adjusting cone I4.1 (adjusting cone II 5.1) in the bushing supporter 4 (shaft seat hole supporter 5), specifically, the large-diameter adjusting cone I4.1 (adjusting cone II 5.1) is suitable for the bushing 10 (shaft and seat hole) with larger diameter, so that the assembling requirement of the bushings 10 with different specifications is met, and the application range of the technical scheme is further enlarged. In addition, the supporting shaft sleeve 1 and the shaft cover 2 are connected in a threaded mode, the structure is simple, the realization is easy, and the connection strength is ensured under the condition of convenient installation and disassembly.
Example 3
The embodiment discloses a high-precision bush 10 assembly centering device, which is a preferred embodiment of the invention, namely in embodiment 1, a through-nail hole 1.3.1 is formed in the axis of the bottom of a support shaft sleeve 1, a nail body of a threaded shaft fixing nail 7 is inserted into the support shaft sleeve 1 through the through-nail hole 1.3.1, and a top cap of the threaded shaft fixing nail 7 is fixedly connected with the bottom of the support shaft sleeve 1; the top of the centering shaft 3 is provided with a connecting end 3.1 for matching with a wrench.
According to the technical scheme, the through-nail hole 1.3.1 is used as a reference for searching a central shaft of the supporting shaft sleeve 1 for the threaded fixed shaft nail 7, the threaded fixed shaft nail 7 and the supporting shaft sleeve 1 are connected under the condition that the through-nail hole 1.3.1 is formed, and the supporting force of the bottom of the supporting shaft sleeve 1 is used for overcoming the tensile force applied to the threaded fixed shaft nail 7 when the fixed shaft nail 3 is connected, so that the strength requirement of connection between the threaded fixed shaft nail 7 and the lower limiting cover 1.3 can be reduced; in addition, the arrangement of the connecting end 3.1 can support the assistance of a wrench, the rotation work of the centering shaft 3 can be easily realized through the assistance of the wrench, and the hand injury of an operator can be avoided to the maximum extent.
Example 4
The embodiment discloses a centering device for assembling a high-precision bush 10, which is a preferred embodiment of the invention, that is, in embodiment 1, a support unit of the bush 10 comprises a right-angle trapezoidal plate I4.2, a ball I4.3 and a ball cover I4.4, the ball I4.3 is in rolling connection with the right-angle trapezoidal plate I4.2 through the ball cover I4.4, the upper bottom and the lower bottom of the right-angle trapezoidal plate I4.2 are respectively provided with a sliding groove I4.2.1, one end of the sliding groove I4.2.1, which is positioned in the support shaft sleeve 1, is provided with a separation-preventing protrusion I4.2.2, and a protrusion structure I1.1.4 used for being matched with the sliding groove I4.2.1 is arranged in a avoidance hole I1.1.3; axle bed 9 wall supporting unit includes right angle trapezoidal plate II 5.2, ball II 5.3 and ball lid II 5.4, ball II 5.3 is through ball lid II 5.4 and right angle trapezoidal plate II 5.2 roll connection, the upper base and the lower bottom of right angle trapezoidal plate II 5.2 are provided with spout II 5.2.1 respectively, spout II 5.2.1 is provided with in the one end that supports 1 inside of axle sleeve and prevents breaking away from protruding II 5.2.2, be provided with in the dodging hole II 1.1.5 and be used for with spout II 5.2.1 complex protruding structure II 1.1.6.
Between bushing support 4 and bush 10 of this technical scheme to and between axle bed hole support 5 and the axle bed 9, all through the ball contact, can effectively reduce the frictional force in the assembling process, reduce the pore wall damage of 10 holes of bush and axle bed hole 9.1.
Example 5
The embodiment discloses a high-precision bush 10 assembly centering device, which is a preferred embodiment of the invention, namely in embodiment 1, the side surface of an adjusting cone II 5.1 is provided with strip-shaped bulges 5.1.2 which correspond to wall supporting units of a shaft seat 9 one by one, the oblique waist of a right-angle trapezoidal plate II 5.2 is provided with a linear sliding groove 5.2.3 which is matched with the strip-shaped bulges 5.1.2, and the cross sections of the strip-shaped bulges 5.1.2 and the linear sliding groove 5.2.3 are T-shaped.
In the technical scheme, the matching structure of the strip-shaped bulges 5.1.2 and the linear sliding grooves 5.2.3 is adopted, so that the wall supporting unit of the shaft seat 9 and the adjusting cone II 5.1 are kept in a connection state all the time, and the adjusting cone II 5.1 is ensured not to rotate, therefore, the relative motion between the centering shaft 3 and the adjusting cone II 5.1 along the axial direction can be controlled by rotating the centering shaft 3, and meanwhile, the wall supporting unit of the shaft seat 9 can be controlled to move outwards and inwards along the axial direction of the supporting bush 10 by controlling the rising and falling of the adjusting cone II 5.1.
Example 6
The embodiment discloses a high-precision bushing 10 assembling and centering device, which is a preferred embodiment of the invention, namely in example 1, limiting nuts 4.5 are arranged at the top and the bottom of an adjusting cone I4.1, so that the adjusting cone I4.1 is axially fixed relative to a centering shaft 3, the adjusting cone I4.1 is circumferentially and radially fixed relative to the centering shaft 3 based on friction between the adjusting cone I4.1 and the limiting nuts 4.5, therefore, the adjusting cone I4.1 rotates together with the centering shaft 3, so that a bushing 10 supporting unit and the adjusting cone I4.1 can only be in contact and non-connected, the adjusting cone I4.1 can only push the bushing 10 supporting unit, and when in use, the bushing 10 supporting unit needs to be manually pushed into a supporting shaft sleeve 1.
Example 7
This example discloses a centering device for assembling a high-precision bush 10, which, as a preferred embodiment of the present invention, that is, in the embodiment 5, the axis of the adjusting cone i 4.1 is provided with a bearing, the adjusting cone i 4.1 is circumferentially movably connected with the centering shaft 3 through the bearing, the adjusting cone i 4.1 can not rotate along with the centering shaft 3, therefore, a connecting structure may be provided between the supporting unit of the bushing 10 and the adjustment cone i 4.1, in particular, the side surface of the adjusting cone I4.1 is provided with strip-shaped bulges 5.1.2I which have the same structure as the strip-shaped bulges 5.1.2 and are in one-to-one correspondence with the supporting units on the wall of the shaft seat 9, a linear sliding groove 5.2.3I used for being matched with the strip-shaped bulge 5.1.2I is arranged on the oblique waist of the right-angle trapezoidal plate I4.2, the cross sections of the strip-shaped bulge 5.1.2I and the linear sliding groove 5.2.3I are both in a T shape, in this way the adjustment cone i 4.1 can control the movement of the support unit of the movable bushing 10 by pushing and pulling.
Example 8
The present embodiment discloses a bushing 10 centering assembly method, which is a basic embodiment of the present invention, and comprises the following steps:
s1, adjusting the centering device, namely, rotating the centering shaft 3 in the positive direction to separate the centering shaft 3 from the threaded centering nail 7, and shortening the distance between the bottom of the centering shaft 3 and the top of the adjusting cone II 5.1 under the condition that the centering shaft 3 is not separated from the threaded hole 5.1.1;
s2, axially pressing the centering shaft 3 to make the adjusting cone II 5.1 move towards the direction close to the bottom of the supporting shaft sleeve 1 and make the shaft seat 9 wall supporting unit move towards the inside of the supporting shaft sleeve 1 at the same time until the shaft seat hole supporter 5 can be put into the shaft seat hole 9.1;
s3, maintaining the force of pressing the centering shaft 3, putting the part of the supporting shaft sleeve 1 for installing the shaft seat hole supporter 5 into the shaft seat hole 9.1, then stopping pressing the centering shaft 3, making the adjusting cone II 5.1 move in the direction far away from the bottom of the supporting shaft sleeve 1 under the action of the supporting spring 5.5, and making the wall supporting units of the shaft seat 9 move towards the outside of the supporting shaft sleeve 1 at the same time until all the wall supporting units of the shaft seat 9 are in close contact with the inner wall of the shaft seat hole 9.1;
s4, sleeving the bush 10 on the part of the support shaft sleeve 1 provided with the bush support 4, and then installing the shaft cover 2 on the top of the support shaft sleeve 1;
s5, reversely rotating the centering shaft 3 to enable the adjusting cone I4.1 and the centering shaft 3 to move towards the direction close to the bottom of the supporting shaft sleeve 1 together, enabling the centering shaft 3 to be gradually in threaded connection with the threaded centering pin 7, enabling the bushing 10 supporting units to move towards the outside of the supporting shaft sleeve 1 under the action of the adjusting cone I4.1, and stopping rotating the centering shaft 3 until all the bushing 10 supporting units are in close contact with the bushing 10;
s6, axially pressing the top of the shaft cover 2, and putting the bush 10 and the part of the support shaft sleeve 1, which is provided with the bush support 4, into the shaft seat hole 9.1;
s7, the shaft cover 2 is detached from the supporting shaft sleeve 1, and then the rest of the centering device is taken out from the lower part of the shaft seat hole 9.1, thereby completing the centering assembly of the bush 10.
Furthermore, in the process of rotating the fixed shaft, a wrench is adopted to connect the connecting end 3.1 of the fixed shaft 3 for assisting in rotation.
Claims (10)
1. A high accuracy bush (10) assembly centring means characterized by: comprises a centering shaft (3), a supporting shaft sleeve (1), a bush supporter (4) and a shaft seat hole supporter (5);
the supporting shaft sleeve (1) is of a hollow cylindrical structure, a fixed shaft hole (1.2.1) is formed in the axis position of the top of the supporting shaft sleeve (1), and a threaded fixed shaft nail (7) used for connecting the fixed shaft (3) is fixed in the axis position of the bottom of the supporting shaft sleeve (1); the top of the supporting shaft sleeve (1) is detachably provided with a shaft cover (2) used for pressing the bushing (10), and the shaft center of the shaft cover (2) is provided with a shaft penetrating hole (2.1);
the centering shaft (3) and the supporting shaft sleeve (1) are coaxially arranged, one end of the centering shaft (3) penetrates through the through shaft hole (2.1) and then is inserted into the supporting shaft sleeve (1) through the centering shaft hole (1.2.1), and the other end of the centering shaft (3) is positioned outside the supporting shaft sleeve (1); the bottom of the centering shaft (3) is provided with a thread groove (3.2) for connecting a threaded centering shaft nail (7);
the bushing support (4) comprises an adjusting cone I (4.1) and at least three bushing (10) support units; the adjusting cone I (4.1) is in a round table structure, and the bottom area of the top of the adjusting cone I (4.1) is larger than that of the bottom of the adjusting cone I; the adjusting cone I (4.1) is located inside the supporting shaft sleeve (1) and is coaxially and fixedly connected with the centering shaft (3), all the bushing (10) supporting units are arranged at equal intervals along the circumferential direction of the adjusting cone I (4.1), avoiding holes I (1.1.3) corresponding to the bushing (10) supporting units one by one are formed in the side face of the supporting shaft sleeve (1), and the bushing (10) supporting units are arranged in the avoiding holes I (1.1.3); one side of the supporting unit of the bushing (10) is obliquely arranged corresponding to the side slope of the adjusting cone I (4.1), is positioned in the supporting shaft sleeve (1), and is used for being in contact fit with the adjusting cone I (4.1); the other side of the supporting unit of the bushing (10) is positioned outside the supporting shaft sleeve (1) and is used for being in close contact with the supporting shaft sleeve (1);
the shaft seat hole support (5) is positioned below the supporting seat of the bushing (10), and the shaft seat hole support (5) comprises a support spring (5.5), an adjusting cone II (5.1) and at least three shaft seat (9) wall support units; the adjusting cone II (5.1) is in a round table structure, and the bottom area of the top of the adjusting cone II (5.1) is smaller than that of the bottom of the adjusting cone II; the adjusting cone II (5.1) is positioned inside the supporting shaft sleeve (1), and the bottom of the adjusting cone II (5.1) is connected with the bottom of the supporting shaft sleeve (1) through a supporting spring (5.5); a threaded hole (5.1.1) is formed in the axis of the adjusting cone II (5.1), an external thread structure I (3.3) is arranged on the centering shaft (3), and the threaded hole (5.1.1) is matched with the external thread structure I (3.3) to enable the adjusting cone II (5.1) to be movably connected with the centering shaft (3) through threads; avoidance holes II (1.1.5) which are in one-to-one correspondence with the wall supporting units of the shaft seat (9) are formed in the side face of the supporting shaft sleeve (1), and the wall supporting units of the shaft seat (9) are arranged in the avoidance holes II (1.1.5); one side of the shaft seat (9) wall supporting unit is positioned in the supporting shaft sleeve (1) and is in sliding connection with the adjusting cone II (5.1) along the gradient direction of the side surface of the adjusting cone II (5.1), and the other side of the shaft seat (9) wall supporting unit is positioned outside the supporting shaft sleeve (1) and is used for being in close contact with the inner wall of the shaft seat hole (9.1).
2. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: the supporting shaft sleeve (1) comprises a sleeve body (1.1), an upper limiting cover (1.2) and a lower limiting cover (1.3); the cover body (1.1) is a hollow cylinder structure with two open ends, the two ends of the cover body (1.1) are respectively provided with an internal thread structure (1.1.1), the upper limit cover (1.2) is detachably connected to the top of the cover body (1.1) through the internal thread structure (1.1.1), and the lower limit cover (1.3) is detachably arranged at the bottom of the cover body (1.1) through the internal thread structure (1.1.1).
3. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: and an external thread structure II (1.1.2) used for connecting the shaft cover (2) is arranged at one end, close to the top, of the supporting shaft sleeve (1).
4. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: the top of the centering shaft (3) is provided with a connecting end head (3.1) matched with a wrench.
5. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: the supporting shaft sleeve is characterized in that a nail penetrating hole (1.3.1) is formed in the axis center of the bottom of the supporting shaft sleeve (1), a nail body of the threaded fixed shaft nail (7) is inserted into the supporting shaft sleeve (1) through the nail penetrating hole (1.3.1), and a top cap of the threaded fixed shaft nail (7) is fixedly connected with the bottom of the supporting shaft sleeve (1).
6. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: bush (10) the supporting element includes right angle trapezoidal plate I (4.2), ball I (4.3) and ball lid I (4.4), ball I (4.3) through ball lid I (4.4) and right angle trapezoidal plate I (4.2) roll connection, the upper base and the lower bottom of right angle trapezoidal plate I (4.2) are provided with spout I (4.2.1) respectively, the one end that spout I (4.2.1) are in supporting shaft sleeve (1) inside is provided with prevents breaking away from protruding I (4.2.2), it is used for with I (4.2.1) complex protruding structure I (1.1.4) of spout to be provided with in hole I (1.1.3).
7. A high-precision bush (10) fitting centering device as claimed in claim 1, wherein: axle bed (9) wall supporting unit includes right angle trapezoidal plate II (5.2), ball II (5.3) and ball lid II (5.4), ball II (5.3) are through ball lid II (5.4) and right angle trapezoidal plate II (5.2) roll connection, the upper base and the lower base of right angle trapezoidal plate II (5.2) are provided with spout II (5.2.1) respectively, the spout II (5.2.1) is provided with in the inside one end of supporting axle sleeve (1) and prevents breaking away from protruding II (5.2.2), be provided with in dodging hole II (1.1.5) and be used for with spout II (5.2.1) complex protruding structure II (1.1.6).
8. A high-precision bush (10) fitting centering device as claimed in claim 7, wherein: the side of the adjusting cone II (5.1) is provided with strip-shaped bulges (5.1.2) which are in one-to-one correspondence with the wall supporting units of the shaft seat (9), the oblique waist of the right-angle trapezoidal plate II (5.2) is provided with a linear sliding groove (5.2.3) which is used for being matched with the strip-shaped bulges (5.1.2), and the cross sections of the strip-shaped bulges (5.1.2) and the linear sliding groove (5.2.3) are T-shaped.
9. A bushing (10) centring assembly method, characterized in that it comprises the following steps:
s1, adjusting the centering device, namely, rotating the centering shaft (3) in the positive direction to separate the centering shaft (3) from the threaded centering nail (7), and shortening the distance between the bottom of the centering shaft (3) and the top of the adjusting cone II (5.1) under the condition that the centering shaft (3) is not separated from the threaded hole (5.1.1);
s2, axially pressing the centering shaft (3) to enable the adjusting cone II (5.1) to move towards the direction close to the bottom of the supporting shaft sleeve (1), and simultaneously enabling the shaft seat (9) wall supporting unit to move towards the inside of the supporting shaft sleeve (1) until the shaft seat hole supporter (5) can be placed into the shaft seat hole (9.1);
s3, maintaining the force of pressing the centering shaft (3), putting the part of the supporting shaft sleeve (1) for installing the shaft seat hole supporter (5) into the shaft seat hole (9.1), then stopping pressing the centering shaft (3), making the adjusting cone II (5.1) move in the direction far away from the bottom of the supporting shaft sleeve (1) under the action of the supporting spring (5.5), and making the shaft seat (9) wall supporting unit move to the outside of the supporting shaft sleeve (1) at the same time until all the shaft seat (9) wall supporting units are in close contact with the inner wall of the shaft seat hole (9.1);
s4, sleeving the bushing (10) on the part of the support shaft sleeve (1) where the bushing support (4) is installed, and then installing the shaft cover (2) on the top of the support shaft sleeve (1);
s5, reversely rotating the centering shaft (3), enabling the adjusting cone I (4.1) and the centering shaft (3) to move towards the direction close to the bottom of the supporting shaft sleeve (1) together, enabling the centering shaft (3) to be gradually in spiral connection with the threaded centering shaft nail (7), enabling the supporting units of the bushings (10) to move towards the outside of the supporting shaft sleeve (1) under the action of the adjusting cone I (4.1), and stopping rotating the centering shaft (3) until all the supporting units of the bushings (10) are in tight contact with the bushings (10);
s6, axially pressing the top of the shaft cover (2), and putting the bush (10) and the part of the support shaft sleeve (1) provided with the bush support (4) into the shaft seat hole (9.1);
s7, the shaft cover (2) is detached from the supporting shaft sleeve (1), and then the rest part of the centering device is taken out from the lower part of the shaft seat hole (9.1), namely the centering assembly of the bush (10) is completed.
10. A bushing (10) centring assembly method according to claim 9, characterized in that it comprises the following steps: in the process of rotating the qualitative shaft, a spanner is adopted to connect the connecting end head (3.1) of the fixed shaft (3) for assisting in rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582993.8A CN113369839B (en) | 2021-05-27 | 2021-05-27 | High-precision bushing assembling and centering device and bushing centering and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582993.8A CN113369839B (en) | 2021-05-27 | 2021-05-27 | High-precision bushing assembling and centering device and bushing centering and assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113369839A true CN113369839A (en) | 2021-09-10 |
| CN113369839B CN113369839B (en) | 2022-04-08 |
Family
ID=77572179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110582993.8A Active CN113369839B (en) | 2021-05-27 | 2021-05-27 | High-precision bushing assembling and centering device and bushing centering and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113369839B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752008A (en) * | 2021-09-26 | 2021-12-07 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
| CN114618706A (en) * | 2022-02-19 | 2022-06-14 | 中建新疆安装工程有限公司 | Rotary jig frame for spraying paint on wind tower frame |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174831A (en) * | 1987-01-16 | 1988-07-19 | Daido Metal Kogyo Kk | Press fitting method for bush or bearing and tool thereof |
| EP0506157A1 (en) * | 1991-03-29 | 1992-09-30 | The Boeing Company | Method and apparatus for installing bushings concentrically in a bore |
| CN102357790A (en) * | 2011-09-09 | 2012-02-22 | 江苏飞船股份有限公司 | Open type thin-wall lining pressing fixture |
| CN104842138A (en) * | 2015-05-21 | 2015-08-19 | 遵义天义利威机电有限责任公司 | Bush press-in device for airplane assembling |
| CN105436867A (en) * | 2015-12-29 | 2016-03-30 | 苏州博众精工科技有限公司 | Automatic alignment mechanism for bushing press |
| CN105855868A (en) * | 2016-06-27 | 2016-08-17 | 全彬强 | Bushing centering device |
| CN205465060U (en) * | 2016-04-08 | 2016-08-17 | 贵州黎阳航空动力有限公司 | Assembly centring means that aeroengine high pressure compressor is adjustable |
| CN206123555U (en) * | 2016-11-08 | 2017-04-26 | 广西玉柴机器股份有限公司 | Bush press fitting tool |
| CN206839538U (en) * | 2017-07-04 | 2018-01-05 | 徐州永欣重工有限公司 | Make the bushing pressure head of heart function by oneself with bushing |
| CN207414751U (en) * | 2017-10-16 | 2018-05-29 | 东风汽车有限公司 | Guide-pillar-free self-centering coaxial press-fitting clamp |
| CN110153687A (en) * | 2019-06-03 | 2019-08-23 | 安阳工学院 | A kind of self-centering differential bearing mounting device of double-sided bearings and installation method |
| CN209887023U (en) * | 2019-01-30 | 2020-01-03 | 苏州纽威阀门股份有限公司 | Ball valve assembly fixture |
| CN211102551U (en) * | 2019-11-26 | 2020-07-28 | 中国民用航空飞行学院 | Operation tool for precisely installing hole inner bushing |
-
2021
- 2021-05-27 CN CN202110582993.8A patent/CN113369839B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174831A (en) * | 1987-01-16 | 1988-07-19 | Daido Metal Kogyo Kk | Press fitting method for bush or bearing and tool thereof |
| EP0506157A1 (en) * | 1991-03-29 | 1992-09-30 | The Boeing Company | Method and apparatus for installing bushings concentrically in a bore |
| CN102357790A (en) * | 2011-09-09 | 2012-02-22 | 江苏飞船股份有限公司 | Open type thin-wall lining pressing fixture |
| CN104842138A (en) * | 2015-05-21 | 2015-08-19 | 遵义天义利威机电有限责任公司 | Bush press-in device for airplane assembling |
| CN105436867A (en) * | 2015-12-29 | 2016-03-30 | 苏州博众精工科技有限公司 | Automatic alignment mechanism for bushing press |
| CN205465060U (en) * | 2016-04-08 | 2016-08-17 | 贵州黎阳航空动力有限公司 | Assembly centring means that aeroengine high pressure compressor is adjustable |
| CN105855868A (en) * | 2016-06-27 | 2016-08-17 | 全彬强 | Bushing centering device |
| CN206123555U (en) * | 2016-11-08 | 2017-04-26 | 广西玉柴机器股份有限公司 | Bush press fitting tool |
| CN206839538U (en) * | 2017-07-04 | 2018-01-05 | 徐州永欣重工有限公司 | Make the bushing pressure head of heart function by oneself with bushing |
| CN207414751U (en) * | 2017-10-16 | 2018-05-29 | 东风汽车有限公司 | Guide-pillar-free self-centering coaxial press-fitting clamp |
| CN209887023U (en) * | 2019-01-30 | 2020-01-03 | 苏州纽威阀门股份有限公司 | Ball valve assembly fixture |
| CN110153687A (en) * | 2019-06-03 | 2019-08-23 | 安阳工学院 | A kind of self-centering differential bearing mounting device of double-sided bearings and installation method |
| CN211102551U (en) * | 2019-11-26 | 2020-07-28 | 中国民用航空飞行学院 | Operation tool for precisely installing hole inner bushing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752008A (en) * | 2021-09-26 | 2021-12-07 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
| CN113752008B (en) * | 2021-09-26 | 2023-06-09 | 成都飞机工业（集团）有限责任公司 | Eccentric bushing alignment recovery method based on alignment recovery assembly |
| CN114618706A (en) * | 2022-02-19 | 2022-06-14 | 中建新疆安装工程有限公司 | Rotary jig frame for spraying paint on wind tower frame |
| CN114618706B (en) * | 2022-02-19 | 2022-12-09 | 中建新疆安装工程有限公司 | Rotary jig frame for spraying paint on wind tower frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113369839B (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113369839B (en) | High-precision bushing assembling and centering device and bushing centering and assembling method | |
| CN202106180U (en) | Adjustable roller type welding machine special for circular seam of hydro-cylinder | |
| CN104275495B (en) | Machining system and machining method of automobile differential shell | |
| CN111230164B (en) | Clamping method of automatic inner supporting clamp for thin-wall cylindrical part | |
| CN111266861A (en) | Assembly fixture of low-pressure turbine of engine | |
| CN113458433A (en) | Clamping tool for processing external thread of large thin-wall cylinder | |
| CN114825198B (en) | Stripping and cutting device capable of accurately controlling stripping and cutting cable insulation layer depth | |
| CN111408918B (en) | Traction tool for low-pressure turbine of engine | |
| CN209999111U (en) | simple multifunctional hand-operated device | |
| CN110695888B (en) | Quick-release type inner supporting device | |
| CN110625200A (en) | Disc gear shaping clamp | |
| CN111474059A (en) | Pressure pipeline detection system | |
| CN214816852U (en) | Eccentric through hole turning clamp | |
| US10406603B2 (en) | Center-rotation type tailstock | |
| CN112427860B (en) | Clamp for welding shaft head of rubber roll | |
| CN110877322B (en) | Automatic screwing device for prestressed reinforced nut matched with hollow jack | |
| CN211419152U (en) | Cross cutting feeder and feedway thereof | |
| CN213889849U (en) | Milling cutter dismouting work piece and device | |
| CN212341054U (en) | Self-rotating clamp | |
| CN220479799U (en) | Roundness control device for thin-wall cylinder | |
| CN116810424B (en) | Swing rod bearing inner ring turning clamp and method | |
| CN219901103U (en) | Positioning fixture for boring cylinder sleeve | |
| KR20160061724A (en) | Apparatus for bolt hole | |
| CN113799018B (en) | Self-positioning mechanism for precisely aligning semi-ring parts | |
| CN113001100B (en) | Efficient tool applied to rolling thin-wall structural member |
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 |