CN209444687U - A kind of positioning pin eccentric bush - Google Patents

A kind of positioning pin eccentric bush Download PDF

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Publication number
CN209444687U
CN209444687U CN201920169804.2U CN201920169804U CN209444687U CN 209444687 U CN209444687 U CN 209444687U CN 201920169804 U CN201920169804 U CN 201920169804U CN 209444687 U CN209444687 U CN 209444687U
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CN
China
Prior art keywords
bush
positioning pin
bush body
guide part
baffle
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.)
Active
Application number
CN201920169804.2U
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Chinese (zh)
Inventor
赵鸿兵
玉坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Yuchai Machinery Co Ltd
Original Assignee
Guangxi Yuchai Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangxi Yuchai Machinery Co Ltd filed Critical Guangxi Yuchai Machinery Co Ltd
Priority to CN201920169804.2U priority Critical patent/CN209444687U/en
Application granted granted Critical
Publication of CN209444687U publication Critical patent/CN209444687U/en
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Abstract

The utility model discloses a kind of positioning pin eccentric bush, including bush body, inner hole one end of the bush body is equipped with the closed baffle of the inner hole, the inner hole other end is equipped with the first guide part, the baffle is equipped with the removal hole for dismantling the bush body out of bushing mounting holes on lathe, the removal hole is equipped with the second guide part close to one end of first guide part, and one end periphery of the close baffle is equipped with third guide part in the bush body.The eccentric bush energy fast and easy of the utility model is taken out, and productivity is improved.

Description

A kind of positioning pin eccentric bush
Technical field
The utility model relates to positioning tool technical fields, more specifically, it relates to a kind of positioning pin eccentric bush.
Background technique
In engine cylinder block, cylinder head process, plane and two pits are widely used in cylinder block, cylinder head on lathe It is positioned, positioning pin is installed with positioning pin bush(ing) cooperation.In the actual processing process, it is often necessary to quickly and accurately adjust The geometric tolerance of whole institute's converted products, at this moment just needs to adjust positioning pin, by positioning pin according to required geometric tolerance direction into The offset of line displacement, positioning pin can be deviated by positioning pin eccentric bush to adjust.Currently, the inner hole of positioning pin bush(ing) is all It is through-hole, the bushing mounting holes for being used to install positioning pin bush(ing) on lathe are blind hole, position the lining on pin bush(ing) fitting machine bed It is unfavorable for bushing after set mounting hole to quickly remove and adjust, influences production efficiency.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, and the utility model provides one kind The positioning pin eccentric bush that energy fast and easy is taken out.
The technical solution of the utility model is: a kind of positioning pin eccentric bush, including bush body, the bush body Inner hole one end is equipped with the closed baffle of the inner hole, and the inner hole other end is equipped with the first guide part, on the baffle Equipped with the removal hole for dismantling the bush body out of bushing mounting holes on lathe, the removal hole is close to described One end of one guide part is equipped with the second guide part, is oriented to close to one end periphery of the baffle equipped with third in the bush body Portion.
As a further improvement, the baffle is concordant with the end face of the bush body, set in the removal hole There is screw thread.
Further, first guide part, the second guide part, third guide part are lead angle.
It further, is interference fit between the bush body and the bushing mounting holes.
It further, is clearance fit between the bush body and positioning pin.
Further, it is integrally formed structures between the bush body and baffle.
Further, one end in the bush body far from the baffle is equipped with axially arranges along the bush body Opening.
Further, the end face of the opening from the bush body extends to the middle part of the bush body.
Beneficial effect
The utility model compared with prior art, has the advantage that are as follows: by the way that baffle is arranged in inner hole one end, and in baffle The upper threaded removal hole of setting, using bolt precession removal hole and after holding out against bushing mounting holes bottom, continuing rotation bolt will Bush body is counter to be ejected, and positioning pin eccentric bush can be effectively reduced and take out difficulty, and fast and easy takes out positioning pin eccentric bush, Quickening is regulated the speed, and the production time is saved, and improves productivity, guarantees product quality.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model;
Fig. 2 is the overlooking structure diagram of the utility model;
Fig. 3 is the left view structural representation of the utility model.
Wherein: 1- bush body, 2- inner hole, 3- baffle, the first guide part of 4-, 5- removal hole, the second guide part of 6-, 7- Three guide parts, 8- opening.
Specific embodiment
Specific embodiment in reference to the accompanying drawing is described further the utility model.
Refering to fig. 1-3, a kind of positioning pin eccentric bush, including bush body 1,2 one end of inner hole of bush body 1 is equipped with will The closed baffle 3 of inner hole 2,2 other end of inner hole are equipped with the first guide part 4, can play good guiding when installing positioning pin Effect facilitates positioning pin to install, and baffle 3 is equipped with to be torn open for dismantle bush body 1 in bushing mounting holes from lathe Hole 5 is unloaded, removal hole 5 is equipped with the second guide part 6 close to one end of the first guide part 4, and baffle 3 is concordant with the end face of bush body 1, It is equipped with screw thread in removal hole 5, is equipped with third guide part 7 close to one end periphery of baffle 3 in bush body 1, by bush body 1 Good guide effect can be played when being installed to bushing mounting holes, and bush body 1 is facilitated to install;By bush body 1 from bushing The method dismantled in mounting hole are as follows: using bolt precession removal hole 5 and after making bolt one end hold out against bushing mounting holes bottom, continue Bolt is rotated, bush body 1 generates upward reaction force, to be ejected bush body 1 is counter, positioning pin can be effectively reduced Eccentric bush takes out difficulty, and fast and easy takes out positioning pin eccentric bush, accelerates to regulate the speed, and saves the production time, improves life Yield guarantees product quality.
First guide part 4, the second guide part 6, third guide part 7 are lead angle, and structure is simple, easy to process;Bushing sheet It is interference fit between body 1 and bushing mounting holes, is clearance fit between bush body 1 and positioning pin, can guarantee positioning accuracy, It is integrally formed structures between bush body 1 and baffle 3, working strength is high, easily manufactured.
One end in bush body 1 far from baffle 3 is equipped with the opening 8 axially arranged along bush body 1, and opening 8 is from bushing The end face of ontology 1 extends to the middle part of bush body 1, and setting opening 8 can make the port of bush body 1 have certain bullet Property, it is more labor-saving during dismounting bush body 1, simultaneously as matching between bush body 1 and bushing mounting holes for interference It closes, so that the port of bush body 1 is tightened, can reduce the fit clearance between bush body 1 and positioning pin, improve positioning accurate Degree can be used the objects such as card and stick into after opening 8 and rotate bush body 1 when adjusting the turned position of bush body 1, Facilitate operation.
Above are merely preferred embodiments of the utility model, it should be pointed out that for those skilled in the art, Under the premise of not departing from the utility model structure, several modifications and improvements can also be made, it is practical new that these all will not influence this The effect and patent practicability that type is implemented.

Claims (8)

1. a kind of positioning pin eccentric bush, including bush body (1), it is characterised in that: the inner hole (2) of the bush body (1) One end is equipped with the inner hole (2) closed baffle (3), and the inner hole (2) other end is equipped with the first guide part (4), described Baffle (3) be equipped with removal hole (5) for dismantling the bush body (1) out of bushing mounting holes on lathe, institute It states removal hole (5) and is equipped with the second guide part (6) close to one end of first guide part (4), it is close on the bush body (1) One end periphery of the baffle (3) is equipped with third guide part (7).
2. a kind of positioning pin eccentric bush according to claim 1, it is characterised in that: the baffle (3) and the lining The end face for covering ontology (1) is concordant, and screw thread is equipped in the removal hole (5).
3. a kind of positioning pin eccentric bush according to claim 1, it is characterised in that: first guide part (4), Two guide parts (6), third guide part (7) are lead angle.
4. a kind of positioning pin eccentric bush according to claim 1, it is characterised in that: the bush body (1) and institute It is interference fit between the bushing mounting holes stated.
5. a kind of positioning pin eccentric bush according to claim 1, it is characterised in that: the bush body (1) and fixed It is clearance fit between the pin of position.
6. a kind of positioning pin eccentric bush according to claim 1, it is characterised in that: the bush body (1) and gear Plate is integrally formed structures between (3).
7. a kind of positioning pin eccentric bush described in -6 any one according to claim 1, it is characterised in that: the bushing sheet One end on body (1) far from the baffle (3) is equipped with the opening (8) axially arranged along the bush body (1).
8. a kind of positioning pin eccentric bush according to claim 7, it is characterised in that: the opening (8) is from the lining The end face of set ontology (1) extends to the middle part of the bush body (1).
CN201920169804.2U 2019-01-31 2019-01-31 A kind of positioning pin eccentric bush Active CN209444687U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920169804.2U CN209444687U (en) 2019-01-31 2019-01-31 A kind of positioning pin eccentric bush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920169804.2U CN209444687U (en) 2019-01-31 2019-01-31 A kind of positioning pin eccentric bush

Publications (1)

Publication Number Publication Date
CN209444687U true CN209444687U (en) 2019-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920169804.2U Active CN209444687U (en) 2019-01-31 2019-01-31 A kind of positioning pin eccentric bush

Country Status (1)

Country Link
CN (1) CN209444687U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109578409A (en) * 2019-01-31 2019-04-05 广西玉柴机器股份有限公司 A kind of positioning pin eccentric bush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109578409A (en) * 2019-01-31 2019-04-05 广西玉柴机器股份有限公司 A kind of positioning pin eccentric bush

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