CN202780423U - Press mounting positioning mechanism for wedge-shaped connecting rod bushing - Google Patents
Press mounting positioning mechanism for wedge-shaped connecting rod bushing Download PDFInfo
- Publication number
- CN202780423U CN202780423U CN 201220357099 CN201220357099U CN202780423U CN 202780423 U CN202780423 U CN 202780423U CN 201220357099 CN201220357099 CN 201220357099 CN 201220357099 U CN201220357099 U CN 201220357099U CN 202780423 U CN202780423 U CN 202780423U
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- wedge
- connecting rod
- microcephaly
- positioning
- press
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Abstract
The utility model relates to a press mounting positioning mechanism for a wedge-shaped connecting rod bushing. The press mounting positioning mechanism comprises a big end positioning mechanism, a small end positioning mechanism and a bushing press mounting positioning mechanism which are arranged on a working table, the bushing press mounting positioning mechanism adopts mandrel press mounting by a split structure, the wedge-shaped bushing is mounted on a mandrel, a circumferential phase angle between a wedge-shaped inclined plane of a pressing sleeve and a positioning steel ball is slightly adjusted through a set screw, a wedge surface phase angle of the wedge-shaped bushing is adjusted through a compression screw, the connecting rod bushing is mounted into a small end hole of the wedge-shaped connecting rod positioned by the big end positioning mechanism and the small end positioning mechanism by pressing, and pressing mounting is convenient and fast while positioning is accurate.
Description
Technical field
The utility model relates to a kind of positioning compression device of wedge shaped connecting rod bushing, is specifically to press-fit detent mechanism for the microcephaly for the engines connecting rod bushing of wedge structure.
Background technology
In existing connecting rod wedge-shaped bushings pressing clamp, the normally used structure of pressure head component is: gland and lining are installed on the compression leg body, gland and this body and function of compression leg alignment pin are located by connecting, because the manufacturing deviation at gland and compression leg body dowel hole phase angle, under the effect on gland wedge shape inclined-plane, have good positioning back bush axis and small end of connecting rod axially bored line is not parallel, in process of press in, correction through fairlead and connecting rod inner cylinder face, pressure only act on lining wedge shape end face and gland wedge shape end contact a bit of zone, this phenomenon can cause the side cut of lining, metaboly.
Wedge-shaped bushings and small end of connecting rod wedge shape end face structures shape be in the process of press in from peak, along with the intensification of compression distance along the circumferential direction the circular arc contact length increase gradually (see figure 2), just have the counterclockwise moment of upset from just beginning to be pressed into, to reach half bowlder maximum to contacting circular arc for this moment.The existence of turning torque makes lining produce distortion, shift phenomenon.
Above-mentioned two situations all can cause excircle of bushing after being pressed into and the applying degree of connecting rod bore area not to reach designing requirement, are to cause in use one of lining failure cause of spinning of engine.
The utility model content
In order to solve above-mentioned deficiency, it is a kind of simple in structure that the utility model provides, it is convenient, accurate that the location is installed, the wedge shaped connecting rod bushing that press-fits effect stability press-fits detent mechanism, can guarantee effectively that wedge-shaped bushings is parallel with the connecting rod small end hole axially bored line after locating fully, overcome simultaneously the turning torque that produces when the wedge-shaped bushings circumferencial direction does not contact with connecting rod small end hole fully.
The technical solution adopted in the utility model is: a kind of wedge shaped connecting rod bushing press-fits detent mechanism, comprise the large head positioning mechanism that all is arranged on the work top, little head positioning mechanism and bushing press-mounting detent mechanism, it is characterized in that described large head positioning mechanism comprise the big end hole end face of positioning supports big end large head gasket, compress the pressing plate of big end on large head gasket by the first air cylinder driven;
Described little head positioning mechanism comprises the stationary wedge positioning seat, activity wedge shape positioning seat of positioning supports small end of connecting rod, is supported on the fairlead in respective link microcephaly microcephaly hole on the work top by guide holder;
Described bushing press-mounting detent mechanism comprises by the second air cylinder driven and passes the work top microcephaly positioning core axle corresponding with the microcephaly hole of small end of connecting rod, the corresponding lining positioning core axle that is used for connecting wedge-shaped bushings that arranges with fairlead, described lining positioning core axle comprises compression leg, gland, housing screw, holding screw and mandrel, the compression leg upper end connects intelligent pressing machine main shaft through pressure sensor, housing screw passes compression leg lower end sidewall the mandrel upper end is fixed in the compression leg, gland is socketed on the mandrel, the gland upper surface pushes against the compression leg lower surface, holding screw passes gland one side sidewall and mandrel is fixed on gland on the mandrel, the press-loading process hole of the locking ball corresponding wedge-shaped bushings of mandrel lower end through radially being with the compression spring connects wedge-shaped bushings, and the wedge-shaped bushings upper surface pushes against the gland lower surface.
Described microcephaly's positioning core axle upper end is provided with the compression maintainance set, holding screw passes and compresses maintainance set one side sidewall and will compress maintainance set and be fixed on microcephaly's positioning core axle, compress maintainance set and microcephaly hole and be little matched in clearance, compress the maintainance set upper surface and be the axial corresponding shape of coincideing with the wedge-shaped bushings lower surface.
Described microcephaly's positioning core axle cooperates with microcephaly's interporal lacuna of small end of connecting rod, and fit clearance reduces to the lower end successively along microcephaly's positioning core axle upper end.
Be installed with two orthogonal pre-determined bit screws on the described guide holder sidewall, two pre-determined bit screws push against small end of connecting rod profile locating surface along length of connecting rod, width respectively.
Have a groove on the described guide holder lateral wall, milled screw passes groove connection activity wedge type positioning seat is along the adjustable state of length of connecting rod direction movable wedge type positioning seat.
Described stationary wedge positioning seat is through microcephaly's pad pre-determined bit support link microcephaly wedge shape inclined-plane.
For the bushing press-mounting detent mechanism, because the mismachining tolerance that exists separately, press-fit such as the be fixedly attached mandrel of gland of employing, when wedge-shaped bushings is installed on the mandrel and be pressed in the small end of connecting rod microcephaly hole, the phase angle deviation can't be adjusted, and easily produces side cut, the distortion of lining; Adopt the mandrel of Split type structure to press-fit in the utility model, when mandrel is installed wedge-shaped bushings, can finely tune the wedge shape inclined-plane of gland and the circumferential phase angle between the locking ball by holding screw, adjust the wedge surface phase angle of wedge-shaped bushings by housing screw, guarantee installation, positioning accuracy, raising press-fits effect.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model lining positioning core axle structural representation.
Among the figure: work top 1, connecting rod 2, big end hole 201, microcephaly hole 202, large head gasket 3, diamond positioning pin 4, pressing plate 5, the first cylinders 6, the second cylinders 7, microcephaly's positioning core axle 8 compresses maintainance set 9, stationary wedge positioning seat 10, activity wedge shape positioning seat 101, milled screw 11, microcephaly's pad 12, microcephaly's pre-determined bit pad 121, guide holder 13, fairlead 14, pre-determined bit screw 15, intelligent pressing machine main shaft 16, compression leg 17, mandrel 18, housing screw 19, holding screw 20, gland 21, wedge-shaped bushings 22, lower fairlead 23, pre-determined bit screw 24, pressure sensor 25.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, shown in 2, a kind of wedge shaped connecting rod bushing press-fits detent mechanism and comprises work top 1, connecting rod 2, big end hole 201, microcephaly hole 202, large head gasket 3, diamond positioning pin 4, pressing plate 5, the first cylinders 6, the second cylinder 7, microcephaly's positioning core axle 8 compresses maintainance set 9, stationary wedge positioning seat 10, activity wedge shape positioning seat 101, milled screw 11, microcephaly's pad 12, microcephaly's pre-determined bit pad 121, guide holder 13, fairlead 14, pre-determined bit screw 15, pre-determined bit screw 24, intelligence pressing machine main shaft 16, compression leg 17, mandrel 18, housing screw 19, holding screw 20, gland 21, wedge-shaped bushings 22.An end is provided with the large head gasket 3 of support link 2 big end holes 201 lower ends on the work top 1, large head gasket 3 is provided with for the diamond positioning pin 4 of cross-under at big end hole 201 interior fixedly big end holes 201, and connecting rod 2 big end holes 201 upper ends are provided with through the first cylinder 6 being used for of driving connecting rod 2 big end holes 201 are pressed on pressing plate 5 on the large head gasket 3; The other end is supported with stationary wedge positioning seat 10, activity wedge shape positioning seat 101 and guide holder 13 on the work top 1, through the 202 times wedge shape end faces in microcephaly's pre-determined bit pad 121 support link, 2 microcephaly holes, guide holder 13 is provided with the fairlead 14 corresponding with connecting rod 2 microcephaly holes 202 on the stationary wedge positioning seat 10; Work top 1 other end is equipped with lower fairlead 23, be provided with in the lower fairlead 23 through the second cylinder 7 and drive microcephaly's positioning core axle 8 that work top 1 is passed in oscilaltion, microcephaly's positioning core axle 8 upper ends are connected with through holding screw and compress maintainance set 9, compress maintainance set 9 outer walls and connecting rod small end hole 202 and be little matched in clearance, compress maintainance set 9 upper surfaces and be the axial corresponding shape of coincideing with the required wedge-shaped bushings that press-fits 22 lower surfaces, microcephaly's positioning core axle 8 and connecting rod 2 microcephaly holes 202 matched in clearance, and fit clearance reduces to the lower end successively along microcephaly's positioning core axle 8 upper ends; Have a groove on guide holder 13 lateral walls, milled screw 11 is connected with activity wedge shape positioning seat 101 in being arranged at guide holder 13, activity wedge shape positioning seat 101 can be along the length direction move left and right of connecting rod 2, cross-under has the pre-determined bit screw 15,24 of holding profile locating surface pre-determined bit with connecting rod 2 microcephalies on the guide holder 13, pre-determined bit screw 15,24 cross-under two adjacent sidewalls on guide holder 13 are mutual plumbness, and pre-determined bit screw 15 is along connecting rod 2 length direction settings; Guide holder 13 tops arrange the lining positioning core axle of corresponding fairlead 14, the lining positioning core axle comprises compression leg 17, gland 21, housing screw 19, holding screw 20 and mandrel 18, housing screw 19 passes compression leg 17 lower end sidewalls mandrel 18 upper ends is fixed in the compression leg 17, gland 21 is socketed on the mandrel 18, gland 21 upper surfaces push against compression leg 17 lower surfaces, holding screw 20 passes gland 21 1 side sidewalls and mandrel 18 is fixed on gland 21 on the mandrel 18, mandrel 18 lower ends connect wedge-shaped bushings through the corresponding required press-loading process hole that press-fits wedge-shaped bushings 22 of the locking ball of radially being with the compression spring, wedge-shaped bushings 22 upper surfaces push against gland 21 lower surfaces, compression leg 17 upper ends are connected with pressing machine main shaft 16 through pressure sensor 25, drive by press main shaft 16 and are connected in wedge-shaped bushings 22 oscilaltions of mandrel 18 lower ends and through fairlead 14 spacing guiding.
This wedge shaped connecting rod bushing press-fits the detent mechanism pressing method, may further comprise the steps:
A), the big end end is supported on the large head gasket, small end of connecting rod wedge shape inclined-plane contacts with microcephaly's pre-determined bit pad on the stationary wedge positioning seat, regulate two pre-determined bit screws and contact with small end of connecting rod profile locating surface respectively, finish the pre-determined bit of small end of connecting rod and major part; Wedge-shaped bushings is fixedly installed in the mandrel lower end, finishes the pre-determined bit of wedge-shaped bushings;
B), control the second cylinder promotes microcephaly's positioning core axle and passes rapidly connecting rod small end hole, microcephaly's positioning core axle lower end and connecting rod small end hole matched in clearance location are finished the small end of connecting rod end and are located; The compression maintainance set of microcephaly's positioning core axle upper end and wedge-shaped bushings compress simultaneously, finish the circumferential and axial location of wedge-shaped bushings; Control the first cylinder promotion pressing plate the big end end is pressed on the large head gasket, finish big end end location;
C), unclamp holding screw, the wedge shape inclined-plane of fine setting gland and the circumferential phase angle between the locking ball; Unclamp housing screw, adjust the wedge surface phase angle of wedge-shaped bushings, finish the adjustment of wedge-shaped bushings;
D), the milled screw that moves to left, little head gasket on the activity wedge shape positioning seat is moved under the small end of connecting rod wedge shape inclined-plane, after little head gasket and small end of connecting rod wedge shape inclined-plane coincide, starting intelligent pressing machine main shaft presses down wedge-shaped bushings and microcephaly's positioning core axle synchronously through gland successively, wedge-shaped bushings is pressed into that position to programmed values back bush positioning core axle resets in the microcephaly hole in fairlead is pressed into connecting rod small end hole;
E), first and second cylinder resets, the activity wedge shape that moves to right positioning seat takes out connecting rod, finishes connecting rob bushing and press-fits.
F), according to intelligent pressing machine sound and light alarm prompting, the defective workpiece of rejecting pressure assembling force.
Claims (6)
1. a wedge shaped connecting rod bushing press-fits detent mechanism, comprises the large head positioning mechanism that all is arranged on the work top, little head positioning mechanism and bushing press-mounting detent mechanism, it is characterized in that:
Described large head positioning mechanism comprise the big end hole end face of positioning supports big end large head gasket, compress the pressing plate of big end on large head gasket by the first air cylinder driven;
Described little head positioning mechanism comprises the stationary wedge positioning seat, activity wedge shape positioning seat of positioning supports small end of connecting rod, is supported on the fairlead in respective link microcephaly microcephaly hole on the work top by guide holder;
Described bushing press-mounting detent mechanism comprises by the second air cylinder driven and passes the work top microcephaly positioning core axle corresponding with the microcephaly hole of small end of connecting rod, the corresponding lining positioning core axle that is used for connecting wedge-shaped bushings that arranges with fairlead, described lining positioning core axle comprises compression leg, gland, housing screw, holding screw and mandrel, the compression leg upper end connects intelligent pressing machine main shaft through pressure sensor, housing screw passes compression leg lower end sidewall the mandrel upper end is fixed in the compression leg, gland is socketed on the mandrel, the gland upper surface pushes against the compression leg lower surface, holding screw passes gland one side sidewall and mandrel is fixed on gland on the mandrel, the press-loading process hole of the locking ball corresponding wedge-shaped bushings of mandrel lower end through radially being with the compression spring connects wedge-shaped bushings, and the wedge-shaped bushings upper surface pushes against the gland lower surface.
2. a kind of wedge shaped connecting rod bushing according to claim 1 press-fits detent mechanism, it is characterized in that: described microcephaly's positioning core axle upper end is provided with the compression maintainance set, holding screw passes and compresses maintainance set one side sidewall and will compress maintainance set and be fixed on microcephaly's positioning core axle, compress maintainance set and microcephaly hole and be little matched in clearance, compress the maintainance set upper surface and be the axial corresponding shape of coincideing with the wedge-shaped bushings lower surface.
3. a kind of wedge shaped connecting rod bushing according to claim 1 and 2 press-fits detent mechanism, it is characterized in that: described microcephaly's positioning core axle cooperates with microcephaly's interporal lacuna of small end of connecting rod, and fit clearance reduces to the lower end successively along microcephaly's positioning core axle upper end.
4. a kind of wedge shaped connecting rod bushing according to claim 1 press-fits detent mechanism, it is characterized in that: be installed with two orthogonal pre-determined bit screws on the described guide holder sidewall, two pre-determined bit screws push against small end of connecting rod profile locating surface along length of connecting rod, width respectively.
5. a kind of wedge shaped connecting rod bushing according to claim 1 press-fits detent mechanism, it is characterized in that: have a groove on the described guide holder lateral wall, milled screw passes groove connection activity wedge type positioning seat is along the adjustable state of length of connecting rod direction movable wedge type positioning seat.
6. a kind of wedge shaped connecting rod bushing according to claim 1 press-fits detent mechanism, it is characterized in that: described stationary wedge positioning seat is through microcephaly's pad pre-determined bit support link microcephaly wedge shape inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357099 CN202780423U (en) | 2012-07-23 | 2012-07-23 | Press mounting positioning mechanism for wedge-shaped connecting rod bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357099 CN202780423U (en) | 2012-07-23 | 2012-07-23 | Press mounting positioning mechanism for wedge-shaped connecting rod bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780423U true CN202780423U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220357099 Withdrawn - After Issue CN202780423U (en) | 2012-07-23 | 2012-07-23 | Press mounting positioning mechanism for wedge-shaped connecting rod bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780423U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729034A (en) * | 2012-07-23 | 2012-10-17 | 江苏松林汽车零部件有限公司 | Wedged connecting rod bushing press fitting positioning mechanism |
| CN102744592A (en) * | 2012-07-23 | 2012-10-24 | 江苏松林汽车零部件有限公司 | Press-fitting and locating mechanism and press-fitting method of wedge-shaped connecting rod bush |
| CN104626050A (en) * | 2014-12-15 | 2015-05-20 | 上海沪工汽车电器有限公司 | Shell opening press-fitting linkage mechanism of car fan controller shell |
| CN107914136A (en) * | 2016-10-11 | 2018-04-17 | 上海汇众汽车制造有限公司 | Support base and its press-loading process are held for non-parallel face pressure |
-
2012
- 2012-07-23 CN CN 201220357099 patent/CN202780423U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729034A (en) * | 2012-07-23 | 2012-10-17 | 江苏松林汽车零部件有限公司 | Wedged connecting rod bushing press fitting positioning mechanism |
| CN102744592A (en) * | 2012-07-23 | 2012-10-24 | 江苏松林汽车零部件有限公司 | Press-fitting and locating mechanism and press-fitting method of wedge-shaped connecting rod bush |
| CN102744592B (en) * | 2012-07-23 | 2014-04-16 | 江苏松林汽车零部件有限公司 | Press-fitting method of locating mechanism of wedge-shaped connecting rod bush |
| CN102729034B (en) * | 2012-07-23 | 2014-06-04 | 江苏松林汽车零部件有限公司 | Wedged connecting rod bushing press fitting positioning mechanism |
| CN104626050A (en) * | 2014-12-15 | 2015-05-20 | 上海沪工汽车电器有限公司 | Shell opening press-fitting linkage mechanism of car fan controller shell |
| CN104626050B (en) * | 2014-12-15 | 2016-04-27 | 上海沪工汽车电器有限公司 | The support shell of vehicle-mounted fan controller shell press-fits link gear |
| CN107914136A (en) * | 2016-10-11 | 2018-04-17 | 上海汇众汽车制造有限公司 | Support base and its press-loading process are held for non-parallel face pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140604 |
|
| RGAV | Abandon patent right to avoid regrant |