CN108972453B - Sleeve pressing tool with protection function - Google Patents
Sleeve pressing tool with protection function Download PDFInfo
- Publication number
- CN108972453B CN108972453B CN201811154633.2A CN201811154633A CN108972453B CN 108972453 B CN108972453 B CN 108972453B CN 201811154633 A CN201811154633 A CN 201811154633A CN 108972453 B CN108972453 B CN 108972453B
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- CN
- China
- Prior art keywords
- bushing
- positioning
- positioning mandrel
- pressing rod
- guide boss
- 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.)
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Classifications
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a sleeve pressing tool with a protection function, which comprises a pressing rod, wherein one end of the pressing rod is provided with a positioning mandrel which is coaxially arranged and used for positioning and righting a bushing, a positioning step used for positioning one end of the bushing is arranged between the positioning mandrel and the pressing rod, the periphery of the positioning mandrel is provided with a righting component which is matched with an inner hole of the bushing, and the pressing rod is provided with a guiding component which is matched with the inner diameter of a deep hole of a workpiece. The invention can protect the bushing from deformation and scratch, improve the mounting precision of the bushing and prolong the service life of the bushing.
Description
Technical Field
The invention relates to the technical field of bushing press fitting, in particular to a bushing press tool with a protection function.
Background
In the moving parts, parts are worn out due to long-term friction, and the parts must be replaced when the gap between the shaft and the hole is worn out to a certain extent, so that the shaft sleeve or the bushing made of the material with lower hardness and better wear resistance is arranged between the shaft and the hole, so that the wear of the shaft and the seat can be reduced, and the cost for replacing the shaft or the seat can be saved when the shaft sleeve or the bushing is worn out to a certain extent.
In mechanical assembly, it is often necessary to install bushings in deep holes in the workpiece. At present, the main method for installing the bushing in the deep hole is that a worker firstly places the bushing in the deep hole and then presses the bushing in place by using a pressing rod. Mounting the bushing in this way has the following problems: when the axis of the bushing is inconsistent with the axis of the deep hole, the bushing is deformed and scratched in the process of pressing the bushing, and the mounting precision and the service life of the bushing are affected.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a sleeve pressing tool with a protection function, which can protect a bushing from deformation and scratch and improve the mounting precision and the service life of the bushing.
The technical scheme of the invention is as follows: the utility model provides a take protective function's pressure cover instrument, includes the depression bar, depression bar one end be equipped with the coaxial positioning core axle that is used for the location to right the bush of arranging, the positioning core axle with the depression bar between be equipped with the location step that is used for carrying out the location to bush one end, the positioning core axle periphery be equipped with the right subassembly of bush hole looks adaptation, the depression bar on be equipped with the direction subassembly with the deep hole internal diameter looks adaptation of work piece.
As a further improvement, the righting assembly comprises a plurality of O-shaped rings which are arranged at intervals, wherein the O-shaped rings are in interference fit with the inner holes of the bushings, and a plurality of O-shaped rings and the positioning mandrel are coaxially arranged.
Further, a ring groove for installing the O-shaped ring is formed in the positioning mandrel, and a transition circular arc is arranged between the ring groove and the positioning mandrel.
Further, the guide assembly comprises a first guide boss and a second guide boss which are arranged at the periphery of the pressing rod from top to bottom at intervals, and the pressing rod, the first guide boss and the second guide boss are coaxially arranged.
Further, a guide part is arranged at the lower end of the second guide boss.
Further, the other end of the pressing rod is provided with a mounting groove for mounting the pressing rod on a press-fitting machine.
Further, the compression bar and the positioning mandrel are of an integrally formed structure.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the positioning mandrel is arranged on the pressing rod to centralize the bushing and the positioning step is arranged on the pressing rod to position the bushing, and the guiding component on the pressing rod is used for guiding the pressing rod to press the bushing into the deep hole of the workpiece, so that the coaxiality of the bushing and the deep hole during press mounting can be ensured, the bushing is prevented from deforming, the abrasion of the outer surface and the inner hole of the bushing is prevented, the mounting precision of the bushing is improved, and the service life of the bushing is prolonged;
2. the O-shaped rings are in interference fit with the inner holes of the bushings, so that the bushings can be effectively straightened and prevented from falling off, the O-shaped rings are made of soft materials, and the inner holes of the bushings can be prevented from being scratched;
3. the transition circular arc is arranged, so that the O-shaped ring can be conveniently installed, and the O-shaped ring is prevented from being scratched in the installation process;
4. the first guide boss and the second guide boss are arranged, so that coaxiality between the compression bar and the deep hole can be effectively ensured, and coaxiality between the bushing and the deep hole during press fitting is further ensured;
5. the compression bar and the positioning mandrel are of an integrally formed structure, and the structure is simple and compact and is convenient to manufacture.
Drawings
FIG. 1 is a schematic view of a press-fit bushing of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
fig. 3 is a schematic structural view of a positioning mandrel according to the present invention.
Wherein: 1-compression bar, 2-bush, 3-location dabber, 4-location step, 5-work piece, 6-O type circle, 7-annular, 8-transition circular arc, 9-first guide boss, 10-second guide boss, 11-guide part, 12-mounting groove.
Detailed Description
The invention will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-3, a sleeve pressing tool with a protection function comprises a pressing rod 1, wherein one end of the pressing rod 1 is provided with a positioning mandrel 3 which is coaxially arranged and used for positioning and righting a bushing 2, the diameter of the positioning mandrel 3 is smaller than that of the pressing rod 1, a positioning step 4 used for positioning one end of the bushing 2 is arranged between the positioning mandrel 3 and the pressing rod 1, the periphery of the positioning mandrel 3 is provided with a righting component which is matched with an inner hole of the bushing 2, the righting component can prevent the bushing 2 from falling, and the pressing rod 1 is provided with a guiding component which is matched with the inner diameter of a deep hole of a workpiece 5; the process of press fitting the bushing 2 is: firstly, sleeving a bushing 2 into a positioning mandrel 3 to enable the upper end of the bushing 2 to prop against a positioning step 4, then, extending a compression bar 1 into a deep hole of a workpiece 5, and finally, pressing the bushing 2 to a preset position by the compression bar 1; through setting up the location dabber 3 on depression bar 1 and right and setting up location step 4 and fix a position bush 2 to bush 2, the deep hole of work piece 5 is pressed to bush 2 with the pressure equipment of the guide component guide depression bar 1 on the rethread depression bar 1, and the axiality of bush 2 and deep hole when can guaranteeing the pressure equipment protects bush 2 and warp, prevents that bush 2 surface and hole from scratching, improves bush 2 installation accuracy and life, and overall structure is rationally distributed, and the device structure is inseparable, simple to operate, application scope is wide.
The centering component comprises a plurality of O-shaped rings 6,O which are arranged at intervals and are in interference fit with the inner hole of the bushing 2, the plurality of O-shaped rings 6 and the positioning mandrel 3 are coaxially arranged, the bushing 2 can be effectively centered, the bushing 2 is prevented from falling off, the O-shaped rings 6 are made of soft materials, and the inner hole of the bushing 2 can be prevented from being scratched; the positioning mandrel 3 is provided with the annular groove 7 for installing the O-shaped ring 6, and a transition circular arc 8 is arranged between the annular groove 7 and the positioning mandrel 3, so that the O-shaped ring 6 is prevented from being scratched in the installation process, and the positioning mandrel can be widely applied to bushing press-fitting which is processed or finished to a final size.
The guide assembly comprises a first guide boss 9 and a second guide boss 10 which are arranged at the periphery of the compression bar 1 from top to bottom at intervals, the compression bar 1, the first guide boss 9 and the second guide boss 10 are coaxially arranged, the first guide boss 9 and the second guide boss 10 are both in sliding connection with the inner wall of the deep hole, so that the coaxiality between the compression bar and the deep hole can be effectively ensured, and the coaxiality between the bushing and the deep hole during press fitting is further ensured; the lower end of the second guide boss 10 is provided with a guide part 11 which can conveniently guide and insert the compression bar 1 into the deep hole.
The other end of the compression bar 1 is provided with a mounting groove 12 for mounting the compression bar 1 on a press-fitting machine, so that the compression bar 1 can be conveniently mounted on the press-fitting machine, and the labor intensity can be reduced by using the press-fitting machine to press-fit the bushing; the other end of the compression bar 1 is also provided with a mounting hole for mounting an operating handle, so that the operating handle can be conveniently mounted, the operating handle is used for press-mounting the bushing, the operation is simple, the flexibility is high, and the carrying is convenient; the pressure lever 1 is provided with scale marks, so that the press-fitting depth of the bushing can be measured in real time; the compression bar 1 and the positioning mandrel 3 are of an integrally formed structure, and the structure is simple and compact and is convenient to manufacture.
While only the preferred embodiments of the present invention have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (3)
1. The utility model provides a take protective function's pressure cover instrument, includes depression bar (1), its characterized in that: a positioning mandrel (3) which is coaxially arranged and used for positioning and righting the bushing (2) is arranged at one end of the pressing rod (1), a positioning step (4) which is used for positioning one end of the bushing (2) is arranged between the positioning mandrel (3) and the pressing rod (1), a righting component which is matched with the inner hole of the bushing (2) is arranged at the periphery of the positioning mandrel (3), and a guiding component which is matched with the inner diameter of a deep hole of the workpiece (5) is arranged on the pressing rod (1);
the centering component comprises a plurality of O-shaped rings (6) which are arranged at intervals, wherein the O-shaped rings (6) are in interference fit with the inner holes of the bushings (2), and a plurality of O-shaped rings (6) are coaxially arranged with the positioning mandrel (3);
the guide assembly comprises a first guide boss (9) and a second guide boss (10) which are arranged at the periphery of the compression bar (1) from top to bottom at intervals, and the compression bar (1) and the first guide boss (9) and the second guide boss (10) are coaxially arranged;
the lower end of the second guide boss (10) is provided with a guide part (11);
the other end of the pressure bar (1) is provided with a mounting groove (12) for mounting the pressure bar (1) on a press-fitting machine.
2. The tool for pressing a sleeve with a protective function according to claim 1, wherein: the positioning mandrel (3) is provided with a ring groove (7) for installing the O-shaped ring (6), and a transition circular arc (8) is arranged between the ring groove (7) and the positioning mandrel (3).
3. The tool for pressing a sleeve with a protective function according to any one of claims 1 to 2, wherein: the compression bar (1) and the positioning mandrel (3) are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154633.2A CN108972453B (en) | 2018-09-30 | 2018-09-30 | Sleeve pressing tool with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154633.2A CN108972453B (en) | 2018-09-30 | 2018-09-30 | Sleeve pressing tool with protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108972453A CN108972453A (en) | 2018-12-11 |
| CN108972453B true CN108972453B (en) | 2023-09-05 |
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ID=64543220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811154633.2A Active CN108972453B (en) | 2018-09-30 | 2018-09-30 | Sleeve pressing tool with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108972453B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414599B (en) * | 2020-10-30 | 2023-05-16 | 广西玉柴机器股份有限公司 | Valve guide rod pulling-out device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776078A (en) * | 1987-07-06 | 1988-10-11 | Howard Robert S | Sleeve mounting and removal tool |
| US7191504B1 (en) * | 2005-03-24 | 2007-03-20 | Sonnax Industries, Inc. | Universal bushing tool and method of use |
| CN204183195U (en) * | 2014-10-16 | 2015-03-04 | 大连叉车有限责任公司 | Axle bush press-loading apparatus |
| CN206066341U (en) * | 2016-10-12 | 2017-04-05 | 广西玉柴机器股份有限公司 | A kind of finished product bushing press-mounting instrument |
| CN206123555U (en) * | 2016-11-08 | 2017-04-26 | 广西玉柴机器股份有限公司 | Bush press fitting tool |
-
2018
- 2018-09-30 CN CN201811154633.2A patent/CN108972453B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776078A (en) * | 1987-07-06 | 1988-10-11 | Howard Robert S | Sleeve mounting and removal tool |
| US7191504B1 (en) * | 2005-03-24 | 2007-03-20 | Sonnax Industries, Inc. | Universal bushing tool and method of use |
| CN204183195U (en) * | 2014-10-16 | 2015-03-04 | 大连叉车有限责任公司 | Axle bush press-loading apparatus |
| CN206066341U (en) * | 2016-10-12 | 2017-04-05 | 广西玉柴机器股份有限公司 | A kind of finished product bushing press-mounting instrument |
| CN206123555U (en) * | 2016-11-08 | 2017-04-26 | 广西玉柴机器股份有限公司 | Bush press fitting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108972453A (en) | 2018-12-11 |
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