CN104526328A - Press fitting mechanism of valve guide pipe - Google Patents
Press fitting mechanism of valve guide pipe Download PDFInfo
- Publication number
- CN104526328A CN104526328A CN201510016249.6A CN201510016249A CN104526328A CN 104526328 A CN104526328 A CN 104526328A CN 201510016249 A CN201510016249 A CN 201510016249A CN 104526328 A CN104526328 A CN 104526328A
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- China
- Prior art keywords
- press
- valve guide
- loading device
- hole
- pressure head
- 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
- 210000000078 claw Anatomy 0.000 claims description 24
- 230000000694 effects Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- B23P19/02—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 for connecting objects by press fit or for detaching same
- B23P19/027—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 for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
Abstract
The invention discloses a press fitting mechanism of a valve guide pipe. The press fitting mechanism of the valve guide pipe comprises a power source providing driving force, a pressing plate fixed to the power source and a pressing head detachably connected with the pressing plate, wherein a guide pipe containing hole used for containing the valve guide pipe is arranged at the tail end of the pressing head. When the press fitting mechanism works, the valve guide pipe is arranged in the guide pipe containing hole firstly, then the power source drives the pressing plate to move, the pressing plate drives the pressing head to apply action force to the valve guide pipe in the guide pipe containing hole, and therefore the valve guide pipe is pressed into a guide pipe bottom hole in a cylinder cover. According to the press fitting mechanism, the pressing head and the pressing plate are detachably connected, so that different pressing heads can be replaced specific to valve guide pipes of different specifications, and a wide application range is further obtained. Meanwhile, the press fitting mechanism does not need to be beaten manually, and the labor intensity for operators is further relieved.
Description
Technical field
The present invention relates to engine assembly technical field, particularly relate to a kind of press-loading device of valve guide bushing.
Background technology
Valve guide bushing is the guider of engine valve, and it play the guiding role to valve, and makes the heat on valve stem pass to cylinder cap through valve guide bushing.During assembling engine, by External Force Acting valve guide bushing is pressed into the conduit bottom outlet in cylinder cap, and then carry out the fine finishining of guide hole,, there is deflection if press-fit, guide hole wall thickness will be caused to process uneven in therefore the press-fiting quality and directly will affect follow-up accurately machined crudy of valve guide bushing, engine is in the process run, there will be abnormal contact between valve with guide hole, the wearing and tearing in acceleration duct hole, the performance parameter of complete machine can be affected simultaneously.
Adopt in conventional art and press-fit valve guide bushing in two ways, one adopts special equipment to press-fit, and another kind adopts manual type to press-fit.When adopting special equipment, directly act on valve guide bushing after pressure head is driven, because pressure head is integrally formed formula structure with power source, cause this special equipment only can be applicable to press-fiting of a kind of valve guide bushing of specification.And when adopting manual type, then valve guide bushing is squeezed in conduit bottom outlet by manual mode of constantly beaing, cause the labour intensity of operating personnel excessive.
Summary of the invention
The object of this invention is to provide a kind of press-loading device of valve guide bushing, this press-loading device can be applicable to press-fiting of the valve guide bushing of plurality of specifications, can reduce the labour intensity of operating personnel simultaneously.
To achieve these goals, the invention provides following technical scheme:
A press-loading device for valve guide bushing, comprise the power source of driving force is provided, the pressing plate that fixes with described power source and the pressure head removably connected with described pressing plate, the end of described pressure head is provided with the catheter containment hole for accommodating described valve guide bushing.
Preferably, in above-mentioned press-loading device, also comprise the sleeve with described pressing plate Flange joint, described sleeve inner has the first stepped passing hole and the second passing hole, one end of described pressure head is arranged in described first passing hole, middle part and described second passing hole of described pressure head are slidably matched, and have adjustment elastic component between the flange end of described pressure head and the inwall of described first passing hole.
Preferably, in above-mentioned press-loading device, also comprise the briquetting of Flange joint between described pressing plate and described sleeve, the end of described briquetting and the end of described pressure head abut against, and the face that described briquetting contacts with described pressure head is arcwall face.
Preferably, in above-mentioned press-loading device, described pressure head comprises body and is set in described intrinsic depression bar, described catheter containment hole is opened in the end of described depression bar, described body has radial the first installing hole extended, described depression bar has radial the second installing hole extended, bearing pin, through described first installing hole and described second installing hole, has buffer gap between the inwall of described second installing hole and the outer surface of described bearing pin.
Preferably, in above-mentioned press-loading device, near the hinged setting in one end at least two claws in described catheter containment hole on the endoporus of described body, one end of described claw is conduit clamping end, and is provided with return springs between described claw and described depression bar.
Preferably, in above-mentioned press-loading device, described body has through slot near the one end in described catheter containment hole, and described through slot is along the radial direction of described body from the through inwall to described body of the outer wall of described body, and described claw is positioned at described through slot.
Preferably, in above-mentioned press-loading device, described conduit clamping end is positioned at the outside of the end of described depression bar.
Preferably, in above-mentioned press-loading device, between the inwall of the end of described depression bar and the endoporus of described body, snubber elastomeric part is set.
Preferably, in above-mentioned press-loading device, the outboard end of described first installing hole sets firmly back-up ring, and described bearing pin is positioned at the inner side of described back-up ring.
Preferably, in above-mentioned press-loading device, removably install cushion block in described catheter containment hole, a side surface of described cushion block is catheter contact surface.
In technique scheme, the invention provides a kind of press-loading device of valve guide bushing, the pressing plate that it comprises provides the power source of driving force, fix with force piece and the pressure head removably connected with pressing plate, the end of pressure head is provided with the catheter containment hole for accommodating valve guide bushing.During the work of this press-loading device, first valve guide bushing is placed in catheter containment hole, then drive presser motion by power source, pressing plate can apply active force with the valve guide bushing in dynamic head conductive pipe accommodation hole, thus is pressed into by valve guide bushing in the conduit bottom outlet on cylinder cap.Compared to the content introduced in background technology, in above-mentioned press-loading device, pressure head and pressing plate removably connect, and therefore can change different pressure heads for the valve guide bushing of different size, and then obtain the wider scope of application; Meanwhile, above-mentioned press-loading device need not manually beat, and then reduces the labour intensity of operating personnel.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the press-loading device that Fig. 1 provides for the embodiment of the present invention;
The sectional view of the sleeve that Fig. 2 provides for the embodiment of the present invention;
The upward view of the briquetting that Fig. 3 provides for the embodiment of the present invention;
The sectional view of the pressure head that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the body that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is for the A-A of structure shown in Fig. 5 is to sectional view;
The structural representation of the depression bar that Fig. 7 provides for the embodiment of the present invention;
The operating diagram of the press-loading device that Fig. 8 provides for the embodiment of the present invention.
Description of reference numerals:
11-valve guide bushing, 12-pressing plate, 13-sleeve, 131-first passing hole, 132-second passing hole, 14-adjusts elastic component, 15-briquetting, 16-body, 161-through slot, 17-depression bar, 171-catheter containment hole, 172-lightening hole, 18-bearing pin, 19-snubber elastomeric part, 20-claw, 21-return springs, 22-cushion block, 23-sealing ring.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further detailed.
As shown in figures 1-8, the embodiment of the present invention provides a kind of press-loading device of valve guide bushing, it is for being pressed in the conduit bottom outlet on cylinder cap by valve guide bushing 11, comprise the power source of driving force is provided, the pressing plate 12 that fixes with power source and the pressure head removably connected with this pressing plate 12, the end of this pressure head is provided with the catheter containment hole for accommodating valve guide bushing 11.
Above-mentioned power source can adopt hydraulic press, and pressure head can be a solid rod-like member, and its end offers catheter containment hole.During the work of this press-loading device, first valve guide bushing 11 is placed in catheter containment hole, then drive pressing plate 12 to move by power source, pressing plate 12 can apply active force with the valve guide bushing 11 in dynamic head conductive pipe accommodation hole, thus is pressed into by valve guide bushing 11 in the conduit bottom outlet on cylinder cap.Compared to the content introduced in background technology, in above-mentioned press-loading device, pressure head and pressing plate 12 removably connect, and therefore can change different pressure heads for the valve guide bushing 11 of different size, and then obtain the wider scope of application; Meanwhile, above-mentioned press-loading device need not manually beat, and then reduces the labour intensity of operating personnel.
During above-mentioned each parts work, easily because mismachining tolerance, alignment error etc. cause the positional precision between valve guide bushing 11 and conduit bottom outlet poor, valve guide bushing 11 is finally caused to occur the deflection even situation of pressure break.In order to alleviate this problem, the press-loading device that the embodiment of the present invention provides also comprises the sleeve 13 with pressing plate 12 Flange joint, this sleeve 13 inside has the first stepped passing hole 131 and the second passing hole 132, both all can be circular hole, and the aperture of the first passing hole 131 is greater than the aperture of the second passing hole 132.One end of pressure head is arranged in the first passing hole 131, and middle part and second passing hole 132 of pressure head are slidably matched, and have between the flange end of pressure head and the inwall of the first passing hole 131 and adjust elastic component 14, this adjustment elastic component 14 can adopt spring.
After adopting said structure, even if there is error in each parts, after valve guide bushing 11 contacts with conduit bottom outlet, active force between the two makes valve guide bushing 11 carry out the position adjustment of appropriateness with dynamic head, now pressure head will move relative to sleeve 13, and then prevent valve guide bushing 11 to be pressed into by force when site error is larger in conduit bottom outlet, that improves valve guide bushing 11 with this press-fits precision.In addition, the process that press-fits that the setting of sleeve 13 also can be valve guide bushing 11 provides guide effect.
Understandably, in a upper scheme, can have certain gap between the surface of pressure head and pressing plate 12, when valve guide bushing 11 contacts with conduit bottom outlet, pressure head will gradually near pressing plate 12, and finally abuts with pressing plate 12, with this reliably transmission of pressure.But during the mode transmitting forces adopting pressing plate 12 to abut with pressure head, quality of fit is between the two not easy to ensure, harmful effect can be produced to the precision that press-fits of valve guide bushing 11 equally.Therefore, can arrange briquetting 15 further, this briquetting 15 is by threaded fastener Flange joint between pressing plate 12 and sleeve 13, and the end of its end and pressure head abuts against, and the face that this briquetting 15 contacts with pressure head is arcwall face.Now, briquetting 15 can adjust according to active force between the two automatically with the cooperation position of pressure head, and that improves valve guide bushing 11 further with this press-fits precision.
Further, the pressure head that the embodiment of the present invention provides can comprise body 16 and be set in this intrinsic depression bar 17, the end of depression bar 17 offers forgoing conduit accommodation hole 171, body 16 has radial the first installing hole extended, depression bar 17 has radial the second installing hole extended, bearing pin 18, through the first installing hole and the second installing hole, has buffer gap between the inwall of the second installing hole and the outer surface of bearing pin 18.When adopting this kind of pressure head, pressing plate 12 drives ram movement, when valve guide bushing 11 and the effect of conduit bottom outlet, valve guide bushing 11 by force transmission to depression bar 17, depression bar 17 can move relative to body 16, this moves and buffering pressing plate 12 is acted on active force on valve guide bushing 11, makes coordinating more steady between valve guide bushing 11 with conduit bottom outlet, optimizes press-fit effect with this.
In order to strengthen above-mentioned technique effect, can arrange snubber elastomeric part 19 between the inwall of the end of depression bar 17 and the endoporus of body 16, this snubber elastomeric part 19 can adopt spring.Valve guide bushing 11 is by force transmission to depression bar 17, and when depression bar 17 is moved relative to body 16, snubber elastomeric part 19 will deform, with this cushioning effect power to a greater degree.In addition, in order to prevent bearing pin 18 from coming off in the first installing hole and the second installing hole, can set firmly back-up ring at the outboard end of the first installing hole, bearing pin 18 entirety is positioned at the inner side of back-up ring, and then stops bearing pin 18 moving along self axial generation.
According to foregoing teachings, when the specification of valve guide bushing 11 changes, directly can change pressure head to realize press-fiting of valve guide bushing 11.But, for the valve guide bushing that specifications vary is less, frequent change pressure head by what cause valve guide bushing 11 and press-fit high cost.In view of this, the hinged setting in one end at least two claws 20 in the embodiment of the present invention close catheter containment hole on the endoporus of body 16, one end of this claw 20 is conduit clamping end, and is provided with return springs 21 between claw 20 and depression bar 17, and this return springs 21 can adopt spring.After so arranging, when the external diameter of valve guide bushing 11 changes in the inside diameter ranges being slightly smaller than catheter containment hole, by the rotation of each claw 20, realize the reliable location of valve guide bushing 11, and then frequently need not change pressure head.
It should be noted that, the actual quantity of claw 20 can adjust flexibly, and such as consider to arrange several claw 20 according to the size of body 16, whether the setting of each claw 20 can weaken the structural strength of body 16.Comprehensive each factor, the quantity of claw 20 is set to two by the embodiment of the present invention.
Above-mentioned claw 20 overall can be placed in the endoporus of body 16, but now the inwall of body 16 is by the motion of restriction claw 20, and the specification limit that claw 20 can be suitable for is narrower.In one embodiment, body 16 can offer through slot 161 near the one end in catheter containment hole, this through slot 161 is along the radial direction of body 16 from the through inwall to body 16 of the outer wall of body 16, and claw 20 is positioned at this through slot 161.Thus, the motion of claw 20 is not just subject to the impact of body 16 inwall yet, makes the motion amplitude of claw 20 larger.
In preferred embodiment, the conduit clamping end of claw 20 can be positioned at the outside of the end of depression bar 17, refers to the side near conduit bottom outlet outside this.Hold compared to conduit clamping the mode penetrating the sidewall in catheter containment hole, conduit clamping end, near conduit bottom outlet, makes conduit clamp the middle part of holding and acting on valve guide bushing 11 as far as possible, makes the spacing more reliable of claw 20 pairs of valve guide bushings 11.
In order to widen the scope of application of above-mentioned press-loading device to a greater degree, also can removably install cushion block 22 in catheter containment hole, a side surface of this cushion block 22 is catheter contact surface.The one end in catheter containment hole can arrange shoulder, so that the location of cushion block 22 in catheter containment hole.Obviously, cushion block 22 can change the degree of depth that valve guide bushing 11 stretches into catheter containment hole, arranges the cushion block 22 of different-thickness with this according to the valve guide bushing 11 of different length flexibly, press-fits depth requirements with what meet valve guide bushing 11.
More preferably, the outer surface of depression bar 17 can offer groove, can place sealing ring 23 in this groove, sealing circle 23 is elastic component, and it can make up the gap between depression bar 17 and body 16, and then reduces the wearing and tearing between depression bar 17 and body 16.In addition, also on depression bar 17, lightening hole 172 can be offered along the axis of depression bar 17, to reduce the weight of whole press-loading device.
Mode above only by illustrating describes some one exemplary embodiment of the present invention, undoubtedly, for those of ordinary skill in the art, when without departing from the spirit and scope of the present invention, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (10)
1. the press-loading device of a valve guide bushing, it is characterized in that, comprise the power source of driving force is provided, the pressing plate that fixes with described power source and the pressure head removably connected with described pressing plate, the end of described pressure head is provided with the catheter containment hole for accommodating described valve guide bushing.
2. press-loading device according to claim 1, it is characterized in that, also comprise the sleeve with described pressing plate Flange joint, described sleeve inner has the first stepped passing hole and the second passing hole, one end of described pressure head is arranged in described first passing hole, middle part and described second passing hole of described pressure head are slidably matched, and have adjustment elastic component between the flange end of described pressure head and the inwall of described first passing hole.
3. press-loading device according to claim 2, it is characterized in that, also comprise the briquetting of Flange joint between described pressing plate and described sleeve, the end of described briquetting and the end of described pressure head abut against, and the face that described briquetting contacts with described pressure head is arcwall face.
4. press-loading device according to claim 1, it is characterized in that, described pressure head comprises body and is set in described intrinsic depression bar, described catheter containment hole is opened in the end of described depression bar, described body has radial the first installing hole extended, described depression bar has radial the second installing hole extended, bearing pin, through described first installing hole and described second installing hole, has buffer gap between the inwall of described second installing hole and the outer surface of described bearing pin.
5. press-loading device according to claim 4, it is characterized in that, near the hinged setting in one end at least two claws in described catheter containment hole on the endoporus of described body, one end of described claw is conduit clamping end, and is provided with return springs between described claw and described depression bar.
6. press-loading device according to claim 5, it is characterized in that, described body has through slot near the one end in described catheter containment hole, and described through slot is along the radial direction of described body from the through inwall to described body of the outer wall of described body, and described claw is positioned at described through slot.
7. press-loading device according to claim 5, is characterized in that, described conduit clamping end is positioned at the outside of the end of described depression bar.
8. press-loading device according to claim 4, is characterized in that, arranges snubber elastomeric part between the inwall of the end of described depression bar and the endoporus of described body.
9. press-loading device according to claim 4, is characterized in that, the outboard end of described first installing hole sets firmly back-up ring, and described bearing pin is positioned at the inner side of described back-up ring.
10. the press-loading device according to any one of claim 1-9, is characterized in that, removably installs cushion block in described catheter containment hole, and a side surface of described cushion block is catheter contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016249.6A CN104526328B (en) | 2015-01-13 | 2015-01-13 | The press-loading device of valve guide bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016249.6A CN104526328B (en) | 2015-01-13 | 2015-01-13 | The press-loading device of valve guide bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526328A true CN104526328A (en) | 2015-04-22 |
| CN104526328B CN104526328B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016249.6A Expired - Fee Related CN104526328B (en) | 2015-01-13 | 2015-01-13 | The press-loading device of valve guide bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526328B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058017A (en) * | 2015-07-29 | 2015-11-18 | 福建华龙化油器有限公司 | Assembly tool of carburetor needle valve base |
| CN105108701A (en) * | 2015-09-09 | 2015-12-02 | 温州瑞明工业股份有限公司 | Press-fitting device of valve guide pipe of cylinder cover |
| CN106624731A (en) * | 2015-10-29 | 2017-05-10 | 湖北汽车工业学院 | Central axle housing and semi-axial casing pipe assembly positioning pin pressing machine |
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| CN105108701A (en) * | 2015-09-09 | 2015-12-02 | 温州瑞明工业股份有限公司 | Press-fitting device of valve guide pipe of cylinder cover |
| CN106624731A (en) * | 2015-10-29 | 2017-05-10 | 湖北汽车工业学院 | Central axle housing and semi-axial casing pipe assembly positioning pin pressing machine |
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| Publication number | Publication date |
|---|---|
| CN104526328B (en) | 2017-01-04 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |
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