CN113894740A - Quick-change auxiliary tool for pressing sleeve of shell bushing - Google Patents
Quick-change auxiliary tool for pressing sleeve of shell bushing Download PDFInfo
- Publication number
- CN113894740A CN113894740A CN202111209990.6A CN202111209990A CN113894740A CN 113894740 A CN113894740 A CN 113894740A CN 202111209990 A CN202111209990 A CN 202111209990A CN 113894740 A CN113894740 A CN 113894740A
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- handle
- nut
- bushing
- directional
- orientation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
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Abstract
The invention discloses a quick-change auxiliary tool for a shell bushing pressing sleeve, which comprises a handle, wherein the head end of the handle is movably connected with a mandrel, a guide sleeve is movably sleeved outside the handle, both ends of the guide sleeve are of a stepped structure, external threads are arranged on the outer wall of the stepped structure, one end of the guide sleeve is connected with a directional nut through the external threads, the section of an inner hole of the directional nut is the same as the end surface structure of the handle, 1 directional surface is arranged, and a scribed line is arranged on the outer wall of the directional nut along the length direction of the directional nut. The bushing pressing machine is suitable for shells with different shapes, only the core shaft matched with the bushing needs to be replaced if bushing pressing of the bushings with different sizes is carried out, otherwise, only the guide sleeve matched with the bushings needs to be replaced for the shells with different sizes, and the bushing pressing machine has the characteristic of rapid type changing and is high in bushing pressing efficiency and qualified rate. The invention also has the advantages of simple structure and strong interchangeability.
Description
Technical Field
The invention relates to a sleeve pressing tool, in particular to a shell bushing sleeve pressing auxiliary tool.
Background
In the production of certain hydraulic products, a bushing needs to be installed on a machined shell, and parts such as the bushing and the shell are in tight fit, so that the bushing needs to be accurately positioned when being installed. Because of the difference of the concrete structure of casing, all need redesign bush when the casing is pressed the cover at every turn and press set auxiliary fixtures, this brings very big inconvenience for processing, and a frock is only effective to a casing, therefore general bush is pressed set auxiliary fixtures and is not applicable to other casings.
Disclosure of Invention
The invention aims to provide a quick-change auxiliary tool for a pressing sleeve of a shell bushing. The auxiliary tool can be suitable for shells with different structures, and has the advantages of wide application range, high repeated utilization degree and short model changing time, so that the auxiliary tool is good in practicability, easy to popularize and apply and good in use value.
The technical scheme of the invention is as follows: the utility model provides a cover quick change auxiliary fixtures is pressed to casing bush, includes the handle, the head end swing joint of handle has the dabber, the guide pin bushing has been cup jointed in the outside activity of handle, guide pin bushing both ends are stairstepping structure, all are equipped with the external screw thread on stairstepping structure's the outer wall, guide pin bushing one end has directional nut through external screw thread threaded connection, directional nut's hole cross-section is the same with handle end face structure, all is equipped with 1 directional face, is provided with the groove along its length direction on directional nut's the outer wall.
In the quick-change auxiliary tool for pressing the sleeve of the shell bushing, the core shaft is provided with an open slot parallel to the orientation surface, the core shaft is sleeved into the bushing when the quick-change auxiliary tool is used, and two sides of the bushing are provided with the orientation holes symmetrical along the central axis.
In the quick-change auxiliary tool for pressing the sleeve on the shell bushing, the mandrel is of a conical structure, and the size of one end, far away from the handle, of the mandrel is larger than that of the connecting end of the handle.
In the quick-change auxiliary tool for pressing the sleeve on the shell bushing, the mandrel is connected to the handle through threads.
In the quick-change auxiliary tool for pressing the sleeve on the shell bushing, one end of the guide sleeve, which is connected with the directional nut, is further connected with the locking nut in a threaded manner, and the directional nut is located on the outer side of the locking nut.
In the quick-change auxiliary tool for pressing the sleeve on the shell bushing, the orientation surface of the orientation nut is in contact with the orientation surface of the handle, and clearance fit exists.
In the aforementioned quick-change auxiliary tool for pressing the sleeve on the shell bushing, the orientation surface of the orientation nut and the orientation surface of the handle are connected through an incomplete excircle, and the incomplete excircle of the handle is in clearance fit with the inner hole of the guide sleeve.
The invention has the beneficial effects that: compared with the prior art, the bushing pressing device is suitable for shells with different shapes, only the mandrel matched with the bushing needs to be replaced if bushing pressing with different sizes is carried out, otherwise, only the guide sleeve matched with the bushing needs to be replaced for the shells with different sizes, and the bushing pressing device has the characteristic of quick type replacement and is high in bushing pressing efficiency and qualification rate. The invention also has the advantages of simple structure and strong interchangeability.
In summary, the auxiliary tool for pressing the sleeve has the advantages of simple structure, convenience in operation, time and labor conservation, high reliability, lower cost, no limitation of the appearance of the shell, wider application range, high repeated utilization degree and short type changing time, so that the auxiliary tool for pressing the sleeve is better in practicability, easy to popularize and apply and has better use value.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a connection structure of a handle and a directional nut;
FIG. 3 is a schematic structural view of an orientation nut;
FIG. 4 is a schematic structural view of the guide sleeve;
FIG. 5 is a schematic view of the handle;
FIG. 6 is a schematic view of the bushing;
fig. 7 is a schematic structural view of the mandrel.
Reference numerals: 1-shell, 2-bush, 3-mandrel, 4-guide sleeve, 5-handle, 6-locking nut, 7-directional nut, 8-open slot and 9-directional hole.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The embodiment of the invention comprises the following steps: the utility model provides a casing bush is pressed and is overlapped quick change auxiliary fixtures, as shown in the attached figure 1-7, including handle 5, the head end swing joint of handle 5 has dabber 3, handle 5 outside activity cup joints guide pin bushing 4, the guide pin bushing 4 both ends are the stairstepping structure, all be equipped with the external screw thread on the outer wall of stairstepping structure, guide pin bushing 4 one end has directional nut 7 through external screw thread threaded connection, directional nut 7's hole cross-section is the same with handle 5 terminal surface structure, all be equipped with 1 directional face, wherein be provided with directional face A in directional nut 7's the hole, and the bottom of handle 5 is provided with directional face an, be provided with the groove along its length direction on directional nut 7's the outer wall.
When the device is used, the other end of the guide sleeve 4 is connected with a sleeve pressing hole of the shell 1 through threads, the orientation nut 7 is rotated, the scribed line on the outer wall of the orientation nut 7 is aligned to the datum line on the shell 1 through visual observation, at the moment, the orientation nut 7 is adjusted to a required angle, and the position of the orientation nut is kept unchanged. The core shaft 3 is movably arranged on a handle 5, a bushing 2 needing to be pressed and sleeved is placed into liquid nitrogen to be cooled and then fixed on the core shaft 3, then the handle 5 fixed with the bushing 2 needing to be pressed and sleeved penetrates through a guide sleeve 4, at the moment, because an oriented surface A of an oriented nut 7 is in contact with an oriented surface a of the handle 5, the rotation of the handle 5 in the guide sleeve 4 is limited by an inner hole of the oriented nut 7, the handle 5 can only linearly run back and forth in the guide sleeve 4 and cannot rotate, the special angle requirement of an inner hole H of the bushing 2 and a shell hole is realized, then the bushing 2 can be pressed into the shell hole of the shell 1, and after the bushing 2 is recovered to the room temperature, the handle 5 and the core shaft 3 are taken out to complete the pressing and sleeving work.
For the shell holes with different sizes, the mandrel 3 needs to be machined again, the mandrel 3 needs to be replaced, and the steps are repeated.
In order to avoid that the bushing 2 rotates on the mandrel 3, and the requirement of a special angle cannot be met between the inner hole H of the bushing 2 and the shell hole, an open slot 8 parallel to the orientation surface is arranged on the mandrel 3, the mandrel 3 is sleeved into the bushing 2 during use, and orientation holes 9 symmetrical along the central axis are arranged on two sides of the bushing 2. After the bush 2 and the mandrel 3 are sleeved, the handle 5 or the bush 2 is rotated to enable the directional hole 9 on the other side to be observed from the directional hole 9 on one side, then the core rod penetrates through the directional hole 9 and the opening groove 8 and then extends into the directional hole 9 on the other side, so that the bush 2 and the mandrel 3 cannot rotate and can only move linearly, and then the handle 5 is sleeved into the guide sleeve 4.
The mandrel 3 is of a conical structure, and the size of one end, far away from the handle 5, of the mandrel is larger than that of the end connected with the handle 5. This arrangement allows good fixing of the bush 2 after the mandrel 3 has been inserted into the bush 2.
The mandrel 3 is connected to the handle 5 through threads, and replacement is convenient.
And one end of the guide sleeve 4 connected with the directional nut 7 is further in threaded connection with a locking nut 6, the directional nut 7 is positioned outside the locking nut 6, after the scribed line on the outer wall of the directional nut 7 is aligned with the datum line on the shell 1, the locking nut 6 is rotated to enable the end face of the locking nut 6 to be attached to the end face of the directional nut 7, the directional nut 7 is locked and cannot rotate any more, and therefore the insertion angle of the handle 5 is guaranteed to meet the requirements.
The orientation face of orientation nut 7 contacts with the orientation face of handle 5 and has clearance fit, the orientation face of orientation nut 7 and handle 5 is connected through incomplete excircle, and the incomplete excircle of handle 5 is clearance fit with the hole of guide pin bushing 4. The insertion of the handle 5 is facilitated, and meanwhile, accurate guiding is achieved.
The invention comprises a mandrel 3 for fixing a bush 2, a guide sleeve 4 for guiding, a handle 5, a locking nut 6 and a directional nut 7.
Wherein dabber 3 is connected through screw thread and handle 5, constitutes a whole, can not take place relative motion after screwing up manually through the screw thread between dabber 3 and the handle 5.
The excircle E of the mandrel 3 is matched with the inner hole F of the bush 2 needing to be pressed and sleeved, the excircle E is provided with a taper by the structure of the opening groove 8 of the mandrel 3, and the excircle E is aligned with the radial hole H of the bush 2 needing to be pressed and sleeved through the opening groove G on the excircle E of the mandrel 3, and the bush 2 needing to be pressed and sleeved is fixed on the excircle E of the mandrel 3 through the tensioning inner hole F.
The two ends of the guide sleeve 4 are provided with thread structures, one end of the thread structure is in thread fit with a sleeve pressing hole of the shell 1, and the guide sleeve 4 and the shell 1 cannot move relatively after being screwed up manually through the thread. The other end of the guide sleeve 4 is in threaded fit with a locking nut 6 and a directional nut 7, a through internal thread is arranged on the locking nut 6 and can freely rotate under the threaded fit of one end of the guide sleeve 4, the internal thread of the directional nut 7 is not through, and the directional nut 7 is in threaded fit with the guide sleeve 4. The orientation surface "A" of the orientation nut 7 can rotate more than 2 circles relative to the guide sleeve 4, and at the moment, the orientation nut 7 is fixed in any direction by screwing the locking nut 6 towards the orientation nut 7.
The orientation surface A of the orientation nut 7 is contacted with the orientation surface a of the handle 5 and has clearance fit relation; the incomplete excircle C of the handle 5 is in clearance fit with the inner hole D of the guide sleeve 4, and the handle 5 can freely move and rotate in the inner hole of the guide sleeve 4 in the axial direction.
The direction of the opening groove G of the mandrel 3 is consistent with the direction of the positioning surface a of the handle 5.
Claims (7)
1. The utility model provides a casing bush presses cover quick change auxiliary fixtures which characterized in that: including handle (5), the head end swing joint of handle (5) has dabber (3), guide pin bushing (4) have been cup jointed in the outside activity of handle (5), guide pin bushing (4) both ends are the stairstepping structure, all be equipped with the external screw thread on the outer wall of stairstepping structure, guide pin bushing (4) one end has directional nut (7) through external screw thread threaded connection, the hole cross-section of directional nut (7) is the same with handle (5) end face structure, all be equipped with 1 orientation face, be provided with the groove along its length direction on the outer wall of directional nut (7).
2. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 1, characterized in that: an open slot (8) parallel to the orientation plane is arranged on the core shaft (3), the core shaft (3) is sleeved into the lining (2) when in use, and orientation holes (9) symmetrical along the central axis are arranged on two sides of the lining (2).
3. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 2, characterized in that: the mandrel (3) is of a conical structure, and the size of one end, far away from the handle (5), of the mandrel is larger than that of the end connected with the handle (5).
4. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 1, characterized in that: the mandrel (3) is connected to the handle (5) through threads.
5. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 1, characterized in that: one end of the guide sleeve (4) connected with the directional nut (7) is further connected with a locking nut (6) in a threaded mode, and the directional nut (7) is located on the outer side of the locking nut (6).
6. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 1, characterized in that: the orientation surface of the orientation nut (7) is contacted with the orientation surface of the handle (5) and has clearance fit.
7. The shell bushing pressing sleeve quick-change auxiliary tool according to claim 1, characterized in that: the orientation nut (7) is connected with the orientation surface of the handle (5) through an incomplete excircle, and the incomplete excircle of the handle (5) is in clearance fit with the inner hole of the guide sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209990.6A CN113894740B (en) | 2021-10-18 | 2021-10-18 | Shell liner pressing sleeve quick-change auxiliary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209990.6A CN113894740B (en) | 2021-10-18 | 2021-10-18 | Shell liner pressing sleeve quick-change auxiliary tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113894740A true CN113894740A (en) | 2022-01-07 |
| CN113894740B CN113894740B (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111209990.6A Active CN113894740B (en) | 2021-10-18 | 2021-10-18 | Shell liner pressing sleeve quick-change auxiliary tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113894740B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724608A (en) * | 1986-11-20 | 1988-02-16 | Parrott Ronald J W | Extractor tool for bearings, bushings and the like |
| CN202399218U (en) * | 2011-12-27 | 2012-08-29 | 陕西飞机工业（集团）有限公司 | Bush pressing-in device for manual pressing-in |
| CN203426695U (en) * | 2013-07-17 | 2014-02-12 | 湖南天雁机械有限责任公司 | Rocker arm bushing and mold enabling rocker arm bushing to be assembled in rocker arm fast and accurately |
| CN104209921A (en) * | 2014-08-21 | 2014-12-17 | 奇瑞汽车股份有限公司 | Signal wheel press-fitting device and signal wheel press-fitting method |
| CN106335024A (en) * | 2016-11-08 | 2017-01-18 | 广西玉柴机器股份有限公司 | The bushing pressing tool |
| CN106863210A (en) * | 2015-12-10 | 2017-06-20 | 贵州红林机械有限公司 | A kind of method and pressing sleeve tool used that bushing is installed on housing |
| CN209936894U (en) * | 2019-05-21 | 2020-01-14 | 安联(郑州)工程机械有限公司 | Self-positioning marking and engraving tool |
-
2021
- 2021-10-18 CN CN202111209990.6A patent/CN113894740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724608A (en) * | 1986-11-20 | 1988-02-16 | Parrott Ronald J W | Extractor tool for bearings, bushings and the like |
| CN202399218U (en) * | 2011-12-27 | 2012-08-29 | 陕西飞机工业（集团）有限公司 | Bush pressing-in device for manual pressing-in |
| CN203426695U (en) * | 2013-07-17 | 2014-02-12 | 湖南天雁机械有限责任公司 | Rocker arm bushing and mold enabling rocker arm bushing to be assembled in rocker arm fast and accurately |
| CN104209921A (en) * | 2014-08-21 | 2014-12-17 | 奇瑞汽车股份有限公司 | Signal wheel press-fitting device and signal wheel press-fitting method |
| CN106863210A (en) * | 2015-12-10 | 2017-06-20 | 贵州红林机械有限公司 | A kind of method and pressing sleeve tool used that bushing is installed on housing |
| CN106335024A (en) * | 2016-11-08 | 2017-01-18 | 广西玉柴机器股份有限公司 | The bushing pressing tool |
| CN209936894U (en) * | 2019-05-21 | 2020-01-14 | 安联(郑州)工程机械有限公司 | Self-positioning marking and engraving tool |
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| Publication number | Publication date |
|---|---|
| CN113894740B (en) | 2023-06-13 |
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