CN204748498U - Piston pin pressure equipment frock - Google Patents
Piston pin pressure equipment frock Download PDFInfo
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- CN204748498U CN204748498U CN201520443392.9U CN201520443392U CN204748498U CN 204748498 U CN204748498 U CN 204748498U CN 201520443392 U CN201520443392 U CN 201520443392U CN 204748498 U CN204748498 U CN 204748498U
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- piston pin
- piston
- bar
- guide
- guiding mechanism
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Abstract
The utility model discloses a piston pin pressure equipment frock, including being used for the piston supporting seat that supports the location piston and be equipped with the guiding hole, the push rod that is used for cup jointing mutually with the piston pin to reach in order can the dismantlement mode being connected in the push rod and being used for fixing the guiding mechanism on the push rod with the piston pin, axial motion that guiding mechanism can follow the guiding hole is with the leading -in piston boss hole of piston pin, and guiding mechanism is variable -length's structure, the utility model has the advantages of being simple in structure and convenient in operation, the reliability is high, can accomplish the pressure equipment work of piston pin high -efficiently to because guiding mechanism be variable -length's structure, can press the needs adjustment in order to form limiting displacement to the push rod, it fix a position accurately, be favorable to reducing assemble the degree of difficulty, carry high yield, improvement production efficiency.
Description
Technical field
The utility model relates to a kind of engine assembly frock, particularly a kind of press fitting of piston pin frock.
Background technology
Piston rod part is the maincenter part of engine, the quality of its assembly quality, on the sealing of cylinder operation with there is direct impact service life.Piston rod part is generally made up of piston, piston pin and connecting rod, connecting rod is made up of parts such as gonnecting rod body, connecting rod cap, connecting-rod bolts and connecting rod bearing shells, gonnecting rod body is divided into small end of connecting rod, shaft and big end, small end of connecting rod is used for installing piston pin, piston orders about crankshaft rotating by piston pin by connecting rod, thus changes the straight reciprocating motion of piston the rotary motion of bent axle into; The assembly process of current piston, connecting rod and piston pin normally adopts manual work, step is roughly, first by piston or small end of connecting rod heating, afterwards piston is placed on location-plate, clean piston pin hole, piston pin pushed while still alive in plug pin bore with hand, immediately small end of connecting rod is goed deep in piston, make piston pin aim at the pin-and-hole of small end of connecting rod, then make piston pin by small end of connecting rod pin-and-hole until piston pin other end pin-and-hole edge with one end that wooden mallet knocks piston pin; But, because used tool is very scattered, there is the problem that location is inaccurate, assembly difficulty is large, yield rate is low, production efficiency is low; Especially for the piston rod part of semi-floating structure, be interference fit due to piston pin and small end of connecting rod and without piston pin snap ring, need hand assembled frock in this case.
Therefore, just need a kind of press fitting of piston pin frock, its structure is simple, easy to operate, reliability is high, what can complete piston pin efficiently press-fits work, and accurate positioning, be conducive to reducing assembly difficulty, improve yield rate, enhance productivity.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of press fitting of piston pin frock, and its structure is simple, easy to operate, reliability is high, and what can complete piston pin efficiently press-fits work, and accurate positioning, is conducive to reducing assembly difficulty, improves yield rate, enhances productivity.
Press fitting of piston pin frock of the present utility model, comprise for supporting and location piston and be provided with pilot hole piston supporting base, for the push rod that socket-connects with piston pin and be removably connected to push rod and for piston pin being fixed on the guiding mechanism on push rod, described guiding mechanism can along the axially-movable of pilot hole to import piston pin bore by piston pin, and described guiding mechanism is adjustable length structure.
Further, described guiding mechanism comprises the guide I and guide II that set gradually from top to bottom, the lower end of described guide I is provided with the first adjustment screw, the top of described guide II upwards extends to form the first threaded shank, described first threaded shank coaxially stretches into the first adjustment screw and is threaded, and makes described guiding mechanism become adjustable length structure.
Further, described guiding mechanism also comprises the adjustment packing ring be located between guide I and guide II.
Further, described push rod comprises and setting gradually from top to bottom and bar the footpath bar I, bar II and the bar III that reduce gradually, described bar II can stretch into piston pin bore and along the axially-movable of piston pin bore, described bar III can stretch into piston pin hole and along the axially-movable of piston pin hole, described guide I is removably connected to bar III and is fixed between bar II and guide I by piston pin.
Further, chamfered is done in the junction of described bar II and bar III.
Further, the upper end of described guide I is provided with the second adjustment screw, the bottom of described bar III extends to form the second threaded shank downwards, and described second threaded shank coaxially stretches into the second adjustment screw and is threaded, and piston pin is fixed between bar II and guide I.
Further, this frock also comprises a base, and described piston supporting base is removably connected to base, and described pilot hole is through hole.
The beneficial effects of the utility model: press fitting of piston pin frock of the present utility model, first push rod, piston pin and guiding mechanism are linked together during use, piston to be placed on piston supporting base and piston pin bore is alignd with pilot hole, then pressing down push rod makes guiding mechanism and piston pin successively pass through piston pin bore and connecting rod small end hole, guiding mechanism continues to be moved into pilot hole, when removing guiding mechanism and push rod after piston pin position suitable; The utility model structure is simple, easy to operate, reliability is high, what can complete piston pin efficiently press-fits work, and because guiding mechanism is adjustable length structure, can adjust that position-limiting action is formed to push rod on demand, its accurate positioning, is conducive to reducing assembly difficulty, improves yield rate, enhances productivity; The piston rod part assembling being particularly suitable for semi-floating structure uses.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, as shown in the figure: press fitting of piston pin frock of the present utility model, comprise for supporting and location piston 91 and be provided with pilot hole 1a piston supporting base 1, for the push rod that socket-connects with piston pin 92 and be removably connected to push rod and for piston pin 92 being fixed on the guiding mechanism on push rod, described guiding mechanism can along the axially-movable of pilot hole 1a to import piston pin bore by piston pin 92, and described guiding mechanism is adjustable length structure; Pilot hole 1a is located at the center of piston supporting base 1; First push rod, piston pin 92 and guiding mechanism are linked together during use, piston 91 to be placed on piston supporting base 1 and piston pin bore is alignd with pilot hole 1a, then pressing down push rod makes guiding mechanism and piston pin 92 successively pass through piston pin bore and the little head bore of connecting rod 93, guiding mechanism continues to be moved into pilot hole 1a, when removing guiding mechanism and push rod after piston pin 92 position suitable; The utility model structure is simple, easy to operate, reliability is high, what can complete piston pin 92 efficiently press-fits work, and because guiding mechanism is adjustable length structure, can adjust that position-limiting action is formed to push rod on demand, its accurate positioning, is conducive to reducing assembly difficulty, improves yield rate, enhances productivity.
In the present embodiment, described guiding mechanism comprises the guide I 31 and guide II 32 that set gradually from top to bottom, the lower end of described guide I 31 is provided with the first adjustment screw 31a, the top of described guide II 32 upwards extends to form the first threaded shank 32a, described first threaded shank 32a coaxially stretches into the first adjustment screw 31a and is threaded, and makes described guiding mechanism become adjustable length structure; Guide I 31 and guide II 32 can in shaft-like; Regulate the degree that is spirally connected of screw 31a by changing the first threaded shank 32a and first, guiding mechanism has different entire length, and structure is simple, easily realizes; In the present embodiment, described guiding mechanism also comprises the adjustment packing ring 4 be located between guide I 31 and guide II 32, adjustment packing ring 4 not only can reduce the wearing and tearing between guide I 31 and guide II 32, and by changing the thickness of adjustment packing ring 4, the change of guiding mechanism entire length can be realized equally.
In the present embodiment, described push rod comprises and setting gradually from top to bottom and bar the footpath bar I 21, bar II 22 and the bar III 23 that reduce gradually, described bar II 22 can stretch into piston pin bore and along the axially-movable of piston pin bore, described bar III 23 can stretch into piston pin hole and along the axially-movable of piston pin hole, described guide I 31 is removably connected to bar III 23 and is fixed between bar II 22 and guide I 31 by piston pin 92; The bar footpath of bar I 21 can be greater than piston pin bore, to form position-limiting action; The bar footpath of bar II 22 is less than piston pin bore, and bar III 23 bar footpath is less than piston pin hole; Bar I 21, bar II 22 and bar III 23 are one-body molded, improve the structural strength of push rod; Chamfered is done in the junction of described bar II 22 and bar III 23.
In the present embodiment, the upper end of described guide I 31 is provided with the second adjustment screw 31b, the bottom of described bar III 23 extends to form the second threaded shank 23a downwards, described second threaded shank 23a coaxially stretches into the second adjustment screw 31b and is threaded, and makes piston pin 92 be fixed between bar II 22 and guide I 31; This structure is convenient to install being separated of rear push-rod and guiding mechanism completing piston pin 92, thus takes out the piston component assembled.
In the present embodiment, this frock also comprises a base 5, and described piston supporting base 1 is removably connected to base, and described pilot hole 1a is through hole; Base 5 is connected by bolt 6 with piston supporting base 1; Represent that piston pin 92 is in place when guide II 32 contacts with base 5 upper surface, easy to use.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. a press fitting of piston pin frock, it is characterized in that: comprise for supporting and location piston and be provided with pilot hole piston supporting base, for the push rod that socket-connects with piston pin and be removably connected to push rod and for piston pin being fixed on the guiding mechanism on push rod, described guiding mechanism can along the axially-movable of pilot hole to import piston pin bore by piston pin, and described guiding mechanism is adjustable length structure.
2. press fitting of piston pin frock according to claim 1, it is characterized in that: described guiding mechanism comprises the guide I and guide II that set gradually from top to bottom, the lower end of described guide I is provided with the first adjustment screw, the top of described guide II upwards extends to form the first threaded shank, described first threaded shank coaxially stretches into the first adjustment screw and is threaded, and makes described guiding mechanism become adjustable length structure.
3. press fitting of piston pin frock according to claim 2, is characterized in that: described guiding mechanism also comprises the adjustment packing ring be located between guide I and guide II.
4. press fitting of piston pin frock according to claim 2, it is characterized in that: described push rod comprises and setting gradually from top to bottom and bar the footpath bar I, bar II and the bar III that reduce gradually, described bar II can stretch into piston pin bore and along the axially-movable of piston pin bore, described bar III can stretch into piston pin hole and along the axially-movable of piston pin hole, described guide I is removably connected to bar III and is fixed between bar II and guide I by piston pin.
5. press fitting of piston pin frock according to claim 4, is characterized in that: chamfered is done in the junction of described bar II and bar III.
6. press fitting of piston pin frock according to claim 4, it is characterized in that: the upper end of described guide I is provided with the second adjustment screw, the bottom of described bar III extends to form the second threaded shank downwards, described second threaded shank coaxially stretches into the second adjustment screw and is threaded, and piston pin is fixed between bar II and guide I.
7. press fitting of piston pin frock according to claim 2, it is characterized in that: this frock also comprises a base, described piston supporting base is removably connected to base, and described pilot hole is through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443392.9U CN204748498U (en) | 2015-06-25 | 2015-06-25 | Piston pin pressure equipment frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443392.9U CN204748498U (en) | 2015-06-25 | 2015-06-25 | Piston pin pressure equipment frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204748498U true CN204748498U (en) | 2015-11-11 |
Family
ID=54463251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443392.9U Active CN204748498U (en) | 2015-06-25 | 2015-06-25 | Piston pin pressure equipment frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204748498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253035A (en) * | 2017-06-15 | 2017-10-17 | 安徽江淮汽车集团股份有限公司 | Semi-floating piston pin press-loading apparatus |
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
-
2015
- 2015-06-25 CN CN201520443392.9U patent/CN204748498U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253035A (en) * | 2017-06-15 | 2017-10-17 | 安徽江淮汽车集团股份有限公司 | Semi-floating piston pin press-loading apparatus |
| CN107253035B (en) * | 2017-06-15 | 2019-10-25 | 安徽江淮汽车集团股份有限公司 | Semi-floating piston pin press-loading apparatus |
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |