CN203003741U - Cotter pin press fitting fixture - Google Patents
Cotter pin press fitting fixture Download PDFInfo
- Publication number
- CN203003741U CN203003741U CN 201220663432 CN201220663432U CN203003741U CN 203003741 U CN203003741 U CN 203003741U CN 201220663432 CN201220663432 CN 201220663432 CN 201220663432 U CN201220663432 U CN 201220663432U CN 203003741 U CN203003741 U CN 203003741U
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- Prior art keywords
- split pin
- press
- interior axle
- pressing clamp
- base
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Abstract
The utility model discloses a cotter pin press fitting fixture which comprises a pedestal. A guide sleeve is arranged on the pedestal. The guide sleeve comprises a cylindrical outer sleeve. The inside of the outer sleeve is an axial hollow structure. A cylindrical inner shaft is arranged in the hollow structure in a sliding mode. A cylindrical boss which is coaxial with the inner shaft and less than inner shaft in radius is arranged on the top portion of the inner shaft. A groove is formed in the bottom of the inner shaft. A spring is arranged between the groove and the pedestal. When the inner shaft contacts with the pedestal, the height difference of the plane of steps formed between the inner shaft and the boss and the plane of the top portion of the outer sleeve is equal to press fitting depth of the cotter pin to be press fitted. According to the cotter pin press fitting fixture, the process of cotter pin assembly and the process quality are optimized, the size is stable, processing time is reduced, and work efficiency is improved.
Description
Technical field
The utility model belongs to the frock clamp field of machining, relates in particular to a kind of split pin pressing clamp.
Background technology
In traditional split pin press-loading process, guarantee to press-fit the degree of depth by the designed pressure head of direct control, but exist pressure head easily to wear and tear, also easily weigh simultaneously the problem of piece surface wounded.In addition, as shown in Figure 1, when press-fiting split pin 2 in the more complicated support parts 1 of some structures (press-fiting the degree of depth is H), if press-fit from the front, clamping and the contrast locating of part that direct control is press-fited the degree of depth is more difficult, be difficult for accurately controlling the degree of depth that press-fits of part, and pressure head also easily with the gusset interference of part.
Summary of the invention
In view of the defective that above-mentioned prior art exists, the purpose of this utility model is to propose a kind of split pin pressing clamp, can realize more easily the press-fiting of part, and guarantee the degree of depth that press-fits of part.
The purpose of this utility model will be achieved by the following technical programs:
A kind of split pin pressing clamp comprises a base, is provided with a fairlead on described base, and described fairlead comprises a columniform overcoat, and the inside of described overcoat is axial hollow structure, has been mounted slidably a columniform interior axle in described hollow structure; The top of described interior axle is provided with one, and coaxial and radius is less than the columniform boss of described interior axle with described interior axle, and the bottom of described interior axle offers a groove, is provided with a spring between described groove and base; When described interior axle contacted with base, the difference of the height on the plane, place, top of the plane, step place that forms between described interior axle and boss and described overcoat equaled the degree of depth that press-fits of split pin to be press-fited.
Preferably, above-mentioned split pin pressing clamp, wherein: the side of described boss is provided with a projection for the opening direction of locating split pin to be press-fited.
Preferably, above-mentioned split pin pressing clamp, wherein: the locating piece for the workpiece of locating split pin to be press-fited that is fixedly installed at least one on described base.
Preferably, above-mentioned split pin pressing clamp, wherein: described locating piece is set in the outside of described fairlead.
Preferably, above-mentioned split pin pressing clamp, wherein: offer a locating slot on the periphery wall of described interior axle, the internal perisporium of described overcoat is provided with an alignment pin corresponding with described locating slot.
Preferably, above-mentioned split pin pressing clamp, wherein: described outer putting offers a perforation, and described alignment pin is arranged in described perforation.
Preferably, above-mentioned split pin pressing clamp, wherein: described groove is cylindrical or cube cylindricality.
Outstanding effect of the present utility model is: after the utility model adopts technique scheme, due to the pressure head of having cancelled in traditional pad technique, can also effectively avoid the surface quality of injuring part, be very easy to clamping and location to various complex parts, make to press-fit more easily and implement, simultaneously the interior spindle guide by fairlead to, be pressed into from the negative split pin, control and be pressed into direction; When contacting with base by axle on fairlead, the height on the plane, place, top of the plane, step place that forms between interior axle and boss and overcoat poor can indirectly be controlled exactly and press-fit the degree of depth, is particularly useful for the pad technique of support class workpiece.The utility model has been optimized technological process and the procedure quality of fitting opening pin, dimensionally stable; Reduce machining period, improved operating efficiency.
Following constipation closes the embodiment accompanying drawing, the specific embodiment of the present utility model is described in further detail, so that technical solutions of the utility model are easier to understand, grasp.
Description of drawings
Fig. 1 is the cutaway view after workpiece and split pin assembling;
Fig. 2 is the perspective view of the utility model embodiment 1;
Fig. 3 is the front view of the utility model embodiment 1;
Fig. 4 is the A-A cutaway view before press-fiting of the utility model embodiment 1;
Fig. 5 is the A-A cutaway view in press-fiting of the utility model embodiment 1;
Fig. 6 is the A-A cutaway view after press-fiting of the utility model embodiment 1;
Fig. 7 is the partial enlarged drawing of Fig. 6;
Fig. 8 is the partial sectional view before press-fiting of the utility model embodiment 2.
The specific embodiment
Embodiment 1:
A kind of split pin pressing clamp of the present embodiment, as Fig. 2 ~ shown in Figure 7, comprise base 3, be provided with fairlead 4 on base 3, fairlead 4 comprises columniform overcoat 41, and the inside of overcoat 41 is axial hollow structure, be mounted slidably columniform interior axle 42 in hollow structure, the top of interior axle 42 is provided with and radius coaxial with interior axle 42 less than the columniform boss 43 of interior axle 42, and the bottom of interior axle 42 offers groove 44, and groove 44 is cylindrical or cube cylindricality.When interior axle 42 contacted with base 3, the difference of the height of the step place plane 42-1 that forms between interior axle 42 and boss 43 and place, the top plane 41-1 of overcoat 41 equaled the degree of depth that press-fits of split pin 2 to be press-fited.Be provided with spring 5 between groove 44 and base 3.Be fixedly installed several on base 3 for the locating piece 6 of the workpiece 1 of locating split pin 2 to be press-fited.Wherein there is a locating piece 6 to be set in the outside of fairlead 4.Offer locating slot 45 on the periphery wall of interior axle 42, offer a perforation 46 on overcoat 41, the alignment pin corresponding with locating slot 45 is set in perforation 46, locating slot 45 coordinates with alignment pin, play security protection in press-fiting process, namely in the restriction, axle 42 is ejected by spring 5.
When using the present embodiment, as shown in Figure 4 to 7, before press-fiting: workpiece 1 that will split pin 2 be press-fited is placed on place, the top plane 41-1 of overcoat 41, workpiece 1 whole press-fit process in non-displacement; On the step place plane 42-1 that forms between axle 42 and boss 43 in split pin to be press-fited 2 is placed, at this moment, the upper end of workpiece 1 is concordant with the step place plane 42-1 of interior axle 42, and boss 43 undersized are in split pin 2 internal diameter sizes, and interior axle 42 undersized are in split pin 2 external diameters.Interior axle 42 makes without External Force Acting the time by bottom land and spring 5 butts of groove 44, and interior axle 42 does not contact with base 3.Press-fit: utilize in the press pad, the pin-and-hole of split pin 2 and workpiece 1 is interference fit, press-fits process split shed pin 2 and is pressed into workpiece 1 with pressure.After press-fiting, when interior axle 42 touches base 3, no longer move, complete and press-fit.Press-fit distance between the plane 41-1 of plane 42-1 that after-opening pin 2 places and workpiece 1 placement in the degree of depth that press-fits that is just requirement, H as shown in Figure 7 is for press-fiting the degree of depth.
After the present embodiment adopts technique scheme, due to the pressure head of having cancelled in traditional pad technique, can also effectively avoid the surface quality of injuring part, be very easy to clamping and location to various complex parts, make to press-fit more easily and implement, by interior axle 42 guiding of fairlead 4, be pressed into from the negative split pin 2 simultaneously, control and be pressed into direction; When contacting with base 3 by axle 42 on fairlead 4, between interior axle 42 and boss 43, the height of place, the top plane 41-1 of the step place plane 42-1 of formation and overcoat 41 is poor, can indirectly control exactly and press-fit the degree of depth, be particularly useful for the pad technique of support class workpiece.The present embodiment has been optimized technological process and the procedure quality of fitting opening pin, dimensionally stable; Reduce machining period, improved operating efficiency.
Embodiment 2:
A kind of split pin pressing clamp of the present embodiment, similar to above-described embodiment 1, difference is: as shown in Figure 8, the side of boss 43 is provided with the projection 45 be used to the opening direction of locating split pin to be press-fited 2.Before press-fiting, the projection 45 of the side of boss 43 can be stuck in the aperture position of split pin 2, thus the opening direction of permanent opening pin 2.
The utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming are within all dropping on protection domain of the present utility model.
Claims (7)
1. split pin pressing clamp, it is characterized in that: comprise a base, be provided with a fairlead on described base, described fairlead comprises a columniform overcoat, the inside of described overcoat is axial hollow structure, has been mounted slidably a columniform interior axle in described hollow structure; The top of described interior axle is provided with one, and coaxial and radius is less than the columniform boss of described interior axle with described interior axle, and the bottom of described interior axle offers a groove, is provided with a spring between described groove and base; When described interior axle contacted with base, the difference of the height on the plane, place, top of the plane, step place that forms between described interior axle and boss and described overcoat equaled the degree of depth that press-fits of split pin to be press-fited.
2. split pin pressing clamp according to claim 1 is characterized in that: the side of described boss is provided with a projection that is used for locating the opening direction of split pin to be press-fited.
3. split pin pressing clamp according to claim 1, is characterized in that: the locating piece for the workpiece of locating split pin to be press-fited that is fixedly installed at least one on described base.
4. split pin pressing clamp according to claim 3, it is characterized in that: described locating piece is set in the outside of described fairlead.
5. split pin pressing clamp according to claim 1, it is characterized in that: offer a locating slot on the periphery wall of described interior axle, the internal perisporium of described overcoat is provided with an alignment pin corresponding with described locating slot.
6. split pin pressing clamp according to claim 5 is characterized in that: described outer putting offers a perforation, and described alignment pin is arranged in described perforation.
7. split pin pressing clamp according to claim 1, it is characterized in that: described groove is cylindrical or cube cylindricality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663432 CN203003741U (en) | 2012-12-04 | 2012-12-04 | Cotter pin press fitting fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220663432 CN203003741U (en) | 2012-12-04 | 2012-12-04 | Cotter pin press fitting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203003741U true CN203003741U (en) | 2013-06-19 |
Family
ID=48595373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220663432 Expired - Fee Related CN203003741U (en) | 2012-12-04 | 2012-12-04 | Cotter pin press fitting fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203003741U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932410A (en) * | 2017-11-09 | 2018-04-20 | 中国航发北京航科发动机控制系统科技有限责任公司 | A kind of straight pin pressing method based on stone tongs |
| CN109202416A (en) * | 2018-11-01 | 2019-01-15 | 横店集团英洛华电气有限公司 | High-precision motor shaft starting gear press mounting device |
| CN110281191A (en) * | 2019-06-27 | 2019-09-27 | 中国航发贵州黎阳航空动力有限公司 | A kind of interference pin assembly method and auxiliary device |
| CN116619000A (en) * | 2023-06-21 | 2023-08-22 | 深圳市中驱电机有限公司 | Press mounting equipment for motor rotor bearing |
-
2012
- 2012-12-04 CN CN 201220663432 patent/CN203003741U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932410A (en) * | 2017-11-09 | 2018-04-20 | 中国航发北京航科发动机控制系统科技有限责任公司 | A kind of straight pin pressing method based on stone tongs |
| CN109202416A (en) * | 2018-11-01 | 2019-01-15 | 横店集团英洛华电气有限公司 | High-precision motor shaft starting gear press mounting device |
| CN110281191A (en) * | 2019-06-27 | 2019-09-27 | 中国航发贵州黎阳航空动力有限公司 | A kind of interference pin assembly method and auxiliary device |
| CN116619000A (en) * | 2023-06-21 | 2023-08-22 | 深圳市中驱电机有限公司 | Press mounting equipment for motor rotor bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 313, No. Patentee after: Changzhou CRRC Auto Parts Co., Ltd. Patentee after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee before: Changzhou CSR Auto Parts Co., Ltd. Patentee before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20181204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |