CN104999423B - The assembly tool of valve guide bushing - Google Patents
The assembly tool of valve guide bushing Download PDFInfo
- Publication number
- CN104999423B CN104999423B CN201510528531.2A CN201510528531A CN104999423B CN 104999423 B CN104999423 B CN 104999423B CN 201510528531 A CN201510528531 A CN 201510528531A CN 104999423 B CN104999423 B CN 104999423B
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- Prior art keywords
- mandrel
- press
- piston rod
- assembly tool
- cylinder piston
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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
- B25B27/026—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 fluid driven
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses the assembly tool of a kind of valve guide bushing, the cylinder piston rod (12) that including housing (11), is installed in described housing (11) and be removably mounted on described housing (11) press-fit mandrel (13), described one end press-fiting mandrel (13) is in transmission connection with cylinder piston rod (12), the described other end press-fiting mandrel (13) is valve guide bushing effect end, the moving direction of described cylinder piston rod (12) be valve guide bushing press-fit direction.The assembly tool that the present invention provides uses cylinder piston rod to apply driving force, and meanwhile, according to the electromotor of different model, can make correspondence press-fits mandrel, the most only need replacing to press-fit mandrel, need not whole replacing assembly tool.Obviously, this assembly tool need not manually apply driving force, and a part for replacing assembly tool, and therefore, this assembly tool can reduce the labor intensity of operator.
Description
Technical field
The present invention relates to engine assembly technical field, particularly relate to the assembly tool of a kind of valve guide bushing.
Background technology
Valve guide bushing is the guider of engine valve, and when electromotor runs, valve is carried by valve guide bushing
For guiding, and the heat on valve stem is made to be transferred to cylinder cap through valve guide bushing.Therefore, when assembling electromotor,
Need to be assemblied on cylinder cap valve guide bushing.
In conventional art, the size of the cylinder cap of assembling type needed for being required for, and corresponding valve guide bushing
Size carries out actual measurement, and designs and produces special valve guide bushing and pound holding tool.This pounds the structure of holding tool
As depicted in figs. 1 and 2, when using this instrument, first valve guide bushing is put in the sleeve a pounding holding tool,
Then, at valve guide bushing pilot hole position sleeve a being placed on cylinder cap, manually tap with rubber hammer and pound dress work
The afterbody of mandrel b of tool, pounds valve guide bushing with this and installs in valve guide bushing mounting hole site.
But, there is following defect in above-mentioned holding tool of pounding: owing to the type of needs assembling is numerous, each machine
Type just needs to be equipped with a kind of special valve guide bushing and pounds holding tool, causes unnecessary cost to waste, also can lead
The labor intensity causing operator is bigger；And mixed in together being not easy to of holding tool of pounding of sizes manages；
Owing to using manpower to tap, the unbalance stress of mandrel, and it is limited by valve guide bushing size, work portion
Divide size less, easily deform, cause pounding holding tool and scrap.
Summary of the invention
It is an object of the invention to provide the assembly tool of a kind of valve guide bushing, this assembly tool can alleviate operation
The labor intensity of personnel.
To achieve these goals, the present invention provides following technical scheme:
The assembly tool of a kind of valve guide bushing, including housing, the cylinder piston that is installed in described housing
Bar and be removably mounted on described housing press-fit mandrel, described in press-fit one end and the cylinder of mandrel
Piston rod is in transmission connection, described in press-fit the other end of mandrel be valve guide bushing effect end, described cylinder is lived
The moving direction of stopper rod be valve guide bushing press-fit direction.
Preferably, in above-mentioned assembly tool, described housing has pressure relief opening, described pressure relief opening is pacified
Equipped with adjustable relief valve.
Preferably, in above-mentioned assembly tool, also including mandrel sleeve pipe, one end of described mandrel sleeve pipe can
Dismounting is fixed in described housing, stretches in described housing outside the other end, described in press-fit the valve of mandrel and lead
Pipe effect end is snug fit in the endoporus of described mandrel sleeve pipe.
Preferably, in above-mentioned assembly tool, the endoporus of described mandrel sleeve pipe is shoulder hole, described ladder
Hole includes the first hole section near described cylinder piston rod and the second hole away from described cylinder piston rod
Section, the aperture of described first hole section more than the aperture of described second hole section, described in press-fit mandrel and include leaning on
First shaft part of nearly described cylinder piston rod and the second shaft part away from described cylinder piston rod, described
The diameter of axle of one shaft part is more than the diameter of axle of described second shaft part.
Preferably, in above-mentioned assembly tool, described shoulder hole also include being connected to described first hole section and
Transitional pore section between described second hole section.
Preferably, in above-mentioned assembly tool, described in press-fit and be connected with described cylinder piston rod on mandrel
One end has stopper protrusion, arranges elasticity between the outer face of described stopper protrusion and described mandrel sleeve pipe
Return unit.
Preferably, in above-mentioned assembly tool, near the one of described cylinder piston rod on described mandrel sleeve pipe
End is protruding termination, and the middle part of described mandrel sleeve pipe has an auxiliary positioning protuberance, described protruding termination and
Described auxiliary positioning protuberance all inwalls with described housing keep off mutually and connecing.
Preferably, in above-mentioned assembly tool, described cylinder piston rod and the described end face press-fiting mandrel it
Between magnetic pad is set.
In technique scheme, the assembly tool that the present invention provides includes housing, cylinder piston rod and pressure
Cored axle, when using this instrument, by press-fiting the valve guide bushing mounting hole site on mandrel aligned cylinder lid, drives
Dynamic air cylinder piston rod so that cylinder piston rod drives and press-fits mandrel motion, when the valve press-fiting mandrel is led
When pipe effect end contacts with valve guide bushing, valve guide bushing is driven power, along with entering of cylinder piston rod
One step motion, valve guide bushing can be press-fited on cylinder cap.
The assembly tool that the present invention provides uses cylinder piston rod to apply driving force, meanwhile, according to different model
Electromotor, can make correspondence press-fits mandrel, the most only need replacing to press-fit mandrel, need not be whole
Individual replacing assembly tool.Obviously, compared to the content described in background technology, this assembly tool is without people
Work applies driving force, and a part for replacing assembly tool, and therefore, this assembly tool can reduce operation
The labor intensity of personnel.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to enforcement
In example, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments described in the present invention, for those of ordinary skill in the art, it is also possible to according to these
Accompanying drawing obtains other accompanying drawing.
Fig. 1 is the structural representation pounding holding tool in conventional art；
Fig. 2 is the sectional drawing pounding holding tool shown in Fig. 1；
The structural representation of the assembly tool that Fig. 3 provides for the embodiment of the present invention；
The sectional view of the assembly tool that Fig. 4 provides for the embodiment of the present invention；
The structural representation of a part for the housing that Fig. 5 provides for the embodiment of the present invention；
The structural representation press-fiting mandrel that Fig. 6 provides for the embodiment of the present invention；
The structural representation of the mandrel sleeve pipe that Fig. 7 provides for the embodiment of the present invention.
Description of reference numerals:
11-housing, 12-cylinder piston rod, 13-press-fits mandrel, the adjustable relief valve of 14-, 15-mandrel sleeve pipe,
16-elastic reset part, 17-magnetic pad.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with accompanying drawing
The present invention is further detailed.
As seen in figures 3-6, the embodiment of the present invention provides the assembly tool of a kind of valve guide bushing, and it is used for will
Pressing of valve guide pipe is in the valve guide bushing mounting hole site on cylinder cap.This assembly tool include housing 11,
Be installed on the cylinder piston rod 12 in this housing 11 and be removably mounted on housing 11 press-fit core
Axle 13, this one end press-fiting mandrel 13 is in transmission connection with cylinder piston rod 12, press-fits mandrel 13
The other end is valve guide bushing effect end, and this valve guide bushing effect end can contact with valve guide bushing, and
Transmission driving force, and the moving direction of cylinder piston rod 12 be valve guide bushing press-fit direction.
Housing 11 is split-type structural, and it at least includes two parts, and these two parts can pass through threaded fastener
Connect, to ensure cylinder piston rod 12 and to press-fit mandrel 13 and can be installed on smoothly on housing 11.Shell
Having air inlet on body 11, this air inlet is positioned at the side of cylinder piston rod 12, when gas is entered by air inlet
After entering in housing, cylinder piston rod 12 will move in housing 11.The one end press-fiting mandrel 13 can be direct
Fixing with cylinder piston rod 12 being connected, its other end may pass through the hole on housing 11, and press-fits mandrel this
End can be slidably matched with this hole.
When using above-mentioned assembly tool, the valve guide bushing mounting hole site on mandrel 13 aligned cylinder lid will be press-fited,
Drive cylinder piston rod 12 so that cylinder piston rod 12 drives and press-fits mandrel 13, when press-fiting mandrel 13
When valve guide bushing effect end contacts with valve guide bushing, valve guide bushing is driven power, along with cylinder piston rod
The further motion of 12, valve guide bushing can be press-fited on cylinder cap.
The assembly tool that the embodiment of the present invention provides uses cylinder piston rod 12 to apply driving force, meanwhile, and root
According to the electromotor of different model, can make correspondence press-fits mandrel 13, the most only needs to change pressure
Cored axle 13, need not whole replacing assembly tool.Obviously, compared to the content described in background technology,
This assembly tool need not manually apply driving force, and a part for replacing assembly tool, therefore, this dress
Allotment of labor's tool can reduce the labor intensity of operator.It addition, need the parts changed to reduce on this assembly tool
After, the management of assembly tool is more convenient, and cost is lower, and uses air cylinder driven, it can also be ensured that drive
The uniformity of power so that press-fit mandrel 13 and be not easy that deformation occurs.
Change to adapt to the model of valve guide bushing further, above-mentioned housing 11 can offer pressure relief opening, should
Installing adjustable relief valve 14 at pressure relief opening, this adjustable relief valve 14 is positioned on housing 11 and enters near it
The side of QI KOU.Under this kind of structure, adjustable relief valve 14 can be adjusted according to different type of machines, adjust with this
The output pressure of displacements of cylinders piston rod 12 and movement velocity thereof, be better achieved the valve of different model with this
Press-fiting of conduit.
Referring to Fig. 7, further, the assembly tool that the embodiment of the present invention provides may also include mandrel
Sleeve pipe 15, one end of this mandrel sleeve pipe 15 is removably fixed in housing 11, stretches in shell outside the other end
Body 11, the valve guide bushing effect end press-fiting mandrel 13 is snug fit in the endoporus of mandrel sleeve pipe 15.
Press-fit the outer part stretching in housing 11 on mandrel 13 to contact with cylinder cap, lead according to valve with this
The position of pipe mounting hole site provides guide more accurately for press-fiting mandrel 13 so that press-fiting of valve guide bushing
Precision is higher.It addition, compared to press-fiting the mode that mandrel 13 is slidably matched with housing 11, press-fit core
Axle 13 is bigger with the contact area of mandrel sleeve pipe 15, and the positional precision press-fiting mandrel 13 is more accurate.
The endoporus of the outer surface and mandrel sleeve pipe 15 that press-fit mandrel 13 all can use straight barrel type structure, this
Contact area time both is relatively big, but along with press-fiting the mandrel 13 shift motion in mandrel sleeve pipe 15
Lengthen, bigger abrasion will be produced between the two, cause the valve guide bushing effect end press-fiting mandrel 13 to become
Little, it is impossible to reliably to press-fit valve guide bushing.In order to alleviate this problem, can be by mandrel sleeve pipe 15
Hole is set to shoulder hole, and this shoulder hole includes near the first hole section of cylinder piston rod 12 with away from cylinder
Second hole section of piston rod 12, the aperture of this first hole section is more than the aperture of the second hole section, and press-fits core
Axle 13 then includes the first shaft part near cylinder piston rod 12 and the second axle away from cylinder piston rod 12
Section, the diameter of axle of this first shaft part is more than the diameter of axle of the second shaft part.
After the endoporus of mandrel sleeve pipe 15 is set to shoulder hole, press-fit the second shaft part and the core of mandrel 13
Be not in contact with each other due to size disparity between first hole section of pipe spreader 15, and this second shaft part only with mandrel
Second hole section of sleeve pipe 15 is slidably matched, now can ensure to press-fit mandrel 13 and mandrel sleeve pipe 15 it
Between active area be in zone of reasonableness, can realize press-fiting the motion guide of mandrel 13, additionally it is possible to
Effectively control wear extent between the two, it is ensured that effectively press-fiting of valve guide bushing.
When press-fiting mandrel 13 and including the first shaft part and the second shaft part, along with press-fiting the motion of mandrel 13,
Two shaft parts will contact with the second hole section.During this, if the junction of the second hole section and the first hole section is
Aperture mutation structure, then press-fit mandrel 13 and will be not easy to coordinate with the second hole section.Accordingly, aforementioned ladder
Hole may also include the transitional pore section being connected between the first hole section and the second hole section, and this transitional pore section is relative
Tilt in the axis press-fiting mandrel 13.Obviously, this transitional pore Duan Kewei press-fits the motion of mandrel 13 and carries
For guiding.
In a kind of embodiment, press-fit the one end being connected with cylinder piston rod 12 on mandrel 13 and can arrange spacing
Protuberance, arranges elastic reset part 16 between the outer face of this stopper protrusion and mandrel sleeve pipe 15.Elastic
Return unit 16 specifically can use spring, press-fits mandrel 13 through this spring.By this elastic reset part
16 can be reliably achieved the reset press-fiting mandrel 13, and then ensure valve guide bushing press-fits streamline
More smooth.
Mandrel sleeve pipe 15 can be fixed on housing 11 by threaded fastener, but uses threaded fastener
After, due to cost and the installation operation of threaded fastener, the relatively costly of assembly tool can be caused, dress
Join inefficient.In view of this, on mandrel sleeve pipe 15, one end of close cylinder piston rod 12 is protruding
Termination, and the middle part of this mandrel sleeve pipe 15 has auxiliary positioning protuberance, this projection termination and auxiliary positioning
Protuberance all inwalls with housing 11 keep off mutually and connecing.Under this structure, housing 11 can be with mandrel sleeve pipe 15
Axial plane is facet, and forms two parts, and these two parts can be fixed by threaded fastener.Protruding end
Head and auxiliary positioning protuberance are placed in above-mentioned two parts, can realize the installation of mandrel sleeve pipe 15.As
After this is arranged, threaded fastener can be saved, also need not complicated installation operate.
Selectively, cylinder piston rod 12 and press-fit magnetic pad 17 also can be set between mandrel 13, two
Person is linked together by this magnetic pad 17.The setting of magnetic pad 17 make cylinder piston rod 12 with
Press-fit the connection between mandrel 13 simpler, quick；Meanwhile, magnetic pad 17 can prevent from even avoiding
Cylinder piston rod 12 with press-fit when mandrel 13 works by sudden surge load, then reduce assembly tool
Impact load, extends the service life of assembly tool.
By the way of explanation, only describe some one exemplary embodiment of the present invention above, undoubtedly, right
In those of ordinary skill in the art, in the case of without departing from the spirit and scope of the present invention, can be with each
Plant different modes described embodiment is modified.Therefore, above-mentioned accompanying drawing and description are inherently
Illustrative, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (7)
1. the assembly tool of a valve guide bushing, it is characterised in that including:
Housing (11), the cylinder piston rod (12) being installed in described housing (11) and removable
Unload be installed on described housing (11) press-fit mandrel (13), described in press-fit the one of mandrel (13)
End is in transmission connection with cylinder piston rod (12), described in press-fit the other end of mandrel (13) be that valve is led
Pipe effect end, the moving direction of described cylinder piston rod (12) be valve guide bushing press-fit direction；
Described assembly tool also includes mandrel sleeve pipe (15), and one end of described mandrel sleeve pipe (15) can
In described housing (11) is fixed in dismounting, outside the other end, stretch in described housing (11), described in press-fit
The valve guide bushing effect end of mandrel (13) is snug fit in the endoporus of described mandrel sleeve pipe (15).
Assembly tool the most according to claim 1, it is characterised in that on described housing (11)
There is pressure relief opening, described pressure relief opening is provided with adjustable relief valve (14).
Assembly tool the most according to claim 1, it is characterised in that described mandrel sleeve pipe (15)
Endoporus be shoulder hole, described shoulder hole includes the first hole section near described cylinder piston rod (12)
With the second hole section away from described cylinder piston rod (12), the aperture of described first hole section is more than described
The aperture of the second hole section, described in press-fit what mandrel (13) included near described cylinder piston rod (12)
First shaft part and the second shaft part away from described cylinder piston rod (12), the diameter of axle of described first shaft part
The diameter of axle more than described second shaft part.
Assembly tool the most according to claim 3, it is characterised in that described shoulder hole also includes
It is connected to the transitional pore section between described first hole section and described second hole section.
Assembly tool the most according to claim 1, it is characterised in that described in press-fit mandrel (13)
Upper one end being connected with described cylinder piston rod (12) has stopper protrusion, described stopper protrusion and institute
State and elastic reset part is set between the outer face of mandrel sleeve pipe (15).
Assembly tool the most according to claim 1, it is characterised in that described mandrel sleeve pipe (15)
Upper one end near described cylinder piston rod (12) is protruding termination, described mandrel sleeve pipe (15)
Middle part has an auxiliary positioning protuberance, described protruding termination and described auxiliary positioning protuberance all with described housing
(11) inwall keeps off mutually and connecing.
7. according to the assembly tool according to any one of claim 1-6, it is characterised in that described gas
Magnetic pad (17) is set between cylinder piston rod (12) and the described end face press-fiting mandrel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528531.2A CN104999423B (en) | 2015-08-24 | 2015-08-24 | The assembly tool of valve guide bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510528531.2A CN104999423B (en) | 2015-08-24 | 2015-08-24 | The assembly tool of valve guide bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104999423A CN104999423A (en) | 2015-10-28 |
| CN104999423B true CN104999423B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510528531.2A Active CN104999423B (en) | 2015-08-24 | 2015-08-24 | The assembly tool of valve guide bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999423B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041820A (en) * | 2016-08-09 | 2016-10-26 | 福州钜立机动车配件有限公司 | Vehicle valve guide pipe press |
| CN108145412B (en) * | 2018-02-02 | 2024-04-30 | 重庆鑫源动力制造有限公司 | Pressure head of spark plug conduit equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU929387A1 (en) * | 1980-10-20 | 1982-05-23 | Львовский Ордена Ленина Политехнический Институт Им.Ленинского Комсомола | Apparatus for automatic assembling of parts of the shaft-and-sleeve type |
| KR20040013238A (en) * | 2002-08-05 | 2004-02-14 | 기아자동차주식회사 | A piston snap ring setting apparatus |
| CN102756355B (en) * | 2012-06-21 | 2015-01-28 | 奇瑞汽车股份有限公司 | Integral head-changing type valve oil seal tool and using method thereof |
| CN103286736A (en) * | 2013-05-03 | 2013-09-11 | 东风朝阳朝柴动力有限公司 | Simple mounting instrument for engine valve guide |
| CN104260044B (en) * | 2014-08-06 | 2016-02-10 | 安徽江淮汽车股份有限公司 | Valve oil seal press mounting tool |
| CN204844026U (en) * | 2015-08-24 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Valve guide's erecting tool |
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2015
- 2015-08-24 CN CN201510528531.2A patent/CN104999423B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104999423A (en) | 2015-10-28 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |