CN203712304U - Positioning device for processing of piston pin holes - Google Patents

Positioning device for processing of piston pin holes Download PDF

Info

Publication number
CN203712304U
CN203712304U CN201320879072.9U CN201320879072U CN203712304U CN 203712304 U CN203712304 U CN 203712304U CN 201320879072 U CN201320879072 U CN 201320879072U CN 203712304 U CN203712304 U CN 203712304U
Authority
CN
China
Prior art keywords
piston
limit piece
positioning
positioning seat
positioning device
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.)
Expired - Fee Related
Application number
CN201320879072.9U
Other languages
Chinese (zh)
Inventor
房立刚
张超
高长友
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.)
ANHUI HENGTAI POWER TECHNOLOGY CO LTD
Original Assignee
ANHUI HENGTAI POWER TECHNOLOGY 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 ANHUI HENGTAI POWER TECHNOLOGY CO LTD filed Critical ANHUI HENGTAI POWER TECHNOLOGY CO LTD
Priority to CN201320879072.9U priority Critical patent/CN203712304U/en
Application granted granted Critical
Publication of CN203712304U publication Critical patent/CN203712304U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a positioning device for processing of piston pin holes. A piston is clamped and precisely positioned, and then pin holes in the face of the piston are processed. The positioning device comprises a positioning seat; two step gaps are symmetrically arranged on left and right sides of the positioning seat; a left stop block and a right stop block are respectively installed at the step gaps, are mutually parallel, and symmetrical by taking a central line as a shaft; after a spring is compressed by a left locking bolt, the left stop block is fixed on the positioning seat via screw thread fit; and after the spring is compressed by a right locking bolt, the right stop block is fixed on the positioning seat via screw thread fit. According to the utility model, the piston is fixed by the left and the right symmetrical stop blocks simultaneously, and with an elastic recovery mechanism, the positioning mechanism defines angular positioning of the piston independently and bears uniform stress. The outer side of the face of the positioning device is used as a positioning basis, so the positioning device is suitable for pistons of different sizes, is high in processing precision, satisfies relative using requirements, and is good in implementation effects.

Description

A kind of positioner of machining piston pin-and-hole
Technical field
The utility model relates to a kind of positioner, especially a kind of positioner of machining piston pin-and-hole.
Background technology
Pin-and-hole requirement on machining accuracy on engine piston is higher, needs accurately behind location, to carry out Boring.For larger-size piston, can position with piston cavity centre bore, adopt inner chamber pin-and-hole seat angle locate mode to ensure the angle precision of pin-and-hole.But compared with for little piston, inner chamber inside cannot arrange attitude reference device at all, therefore can only adopt exterior orientation mechanism for size.But existing positioning fixture location is inaccurate, due to piston discontinuity, very easily deflects when bore hole, pin-and-hole is often large little on one side on one side, causes whole piston to be scrapped.Existing positioning fixture cannot meet the processing request of small size piston.
Utility model content
The utility model, just for the deficiency of prior art existence, provides a kind of positioner of machining piston pin-and-hole.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of positioner of machining piston pin-and-hole, by the pin-and-hole on its face bar of processing behind piston clamping accurate location, described positioner comprises positioning seat, be symmetrically arranged with step breach in the positioning seat left and right sides, two step indentation, there, left limit piece and right limit piece are installed respectively, left limit piece and right limit piece are parallel to each other and with the mutual axial symmetry of center line, after left clamping screw Compress Spring, by threaded engagement, left limit piece is fixed on positioning seat, after right clamping screw Compress Spring, by threaded engagement, right limit piece is fixed on positioning seat.
As the improvement of technique scheme, the quantity of described left clamping screw and right clamping screw is respectively two, and Parallel Symmetric distributes.
As the improvement of technique scheme, described left limit piece topmost oral area is provided with left arc transition, and in right limit piece the top, oral area is provided with right arc transition.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Positioner described in the utility model, adopts mutual symmetrical limited block to carry out simultaneously fixed piston, and adopts and be with flexible recoverys mechanism, and it independently defines angle location of piston, stressed even.This positioner, taking face bar outside as positioning datum, is applicable to different undersized pistons, and machining accuracy is high, meets relevant instructions for use, and implementation result is good.
Brief description of the drawings
Fig. 1 is positioning device structure schematic diagram described in the utility model;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 is left limit piece and right limit block structure schematic diagram in positioner.
Detailed description of the invention
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1, be positioning device structure schematic diagram described in the utility model; Fig. 2 is its A-A cutaway view.Positioner 20 described in the utility model, is used for clamping and positioning piston 10, and piston 10 is located to the pin-and-hole 12 on its face bar 11 of rear processing.Because face bar 11 is irregular, so it accurately must be located and clamp.
For larger-size piston 10, can position with lumen centers hole, adopt inner chamber pin-and-hole seat angle locate mode to ensure the angle precision of pin-and-hole 12.But compared with for little piston 10, inner chamber inside cannot arrange attitude reference device at all, therefore can only adopt exterior orientation mechanism for size.
As depicted in figs. 1 and 2, positioner 20 described in the utility model, comprise positioning seat 21, be symmetrically arranged with step breach in positioning seat 21 left and right sides, two step indentation, there, left limit piece 22 and right limit piece 23 are installed respectively, left limit piece 22 and right limit piece 23 are parallel to each other and with the mutual axial symmetry of center line.After left clamping screw 24 Compress Springs, by threaded engagement, left limit piece 22 is fixed on positioning seat 21, similarly, after right clamping screw 25 Compress Springs, by threaded engagement, right limit piece 23 is fixed on positioning seat 21.For accurate location, the quantity of left clamping screw 24 and right clamping screw 25 is respectively two, and Parallel Symmetric distributes.
As shown in Figure 1, piston 10 is clamped between left limit piece 22 and right limit piece 23, and left limit piece 22 and right limit piece 23 cooperatively interact face bar 11 is clamped.Like this, just taking the outside of face bar 11 as positioning datum, reprocessing pin-and-hole 12.
Because piston 10 need to move up and down location, in the time coordinating with positioner 20, be easy to scratch face bar 11.Therefore, positioner 20 described in the utility model, is provided with left arc transition 22a at left limit piece 22 the top oral areas, is provided with right arc transition 23a, as shown in Figure 3 at right limit piece 23 the top oral areas.In the time that piston 10 presses down, face bar 11, without strong scraping, is easy to piston 10 to put into both allocations when operation like this.Left limit piece 22 and right limit piece 23 define and can only move up along main shaft square, and this is just in time that left clamping screw 24 and right clamping screw 25 coordinate respectively stressed direction with spring.

Claims (3)

1. the positioner of a machining piston pin-and-hole, by the pin-and-hole (12) on its face bar (11) of processing behind piston (10) clamping accurate location, it is characterized in that, described positioner (20) comprises positioning seat (21), be symmetrically arranged with step breach in positioning seat (21) left and right sides, two step indentation, there, left limit piece (22) and right limit piece (23) are installed respectively, left limit piece (22) and right limit piece (23) are parallel to each other and with the mutual axial symmetry of center line, after left clamping screw (24) Compress Spring, by threaded engagement, left limit piece (22) is fixed on positioning seat (21), after right clamping screw (25) Compress Spring, by threaded engagement, right limit piece (23) is fixed on positioning seat (21).
2. the positioner of a kind of machining piston pin-and-hole as claimed in claim 1, is characterized in that, the quantity of described left clamping screw (24) and right clamping screw (25) is respectively two, and Parallel Symmetric distributes.
3. the positioner of a kind of machining piston pin-and-hole as claimed in claim 1 or 2, it is characterized in that, described left limit piece (22) topmost oral area is provided with left arc transition (22a), and in right limit piece (23) the top, oral area is provided with right arc transition (23a).
CN201320879072.9U 2013-12-30 2013-12-30 Positioning device for processing of piston pin holes Expired - Fee Related CN203712304U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320879072.9U CN203712304U (en) 2013-12-30 2013-12-30 Positioning device for processing of piston pin holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320879072.9U CN203712304U (en) 2013-12-30 2013-12-30 Positioning device for processing of piston pin holes

Publications (1)

Publication Number Publication Date
CN203712304U true CN203712304U (en) 2014-07-16

Family

ID=51151502

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320879072.9U Expired - Fee Related CN203712304U (en) 2013-12-30 2013-12-30 Positioning device for processing of piston pin holes

Country Status (1)

Country Link
CN (1) CN203712304U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526752A (en) * 2015-01-15 2015-04-22 上海信奥科技有限公司 Cutting machine head die set fastening device
CN109664987A (en) * 2018-11-19 2019-04-23 四川大学 A kind of self power generation portable bicycle lighting device
CN111186540A (en) * 2020-01-16 2020-05-22 武昌船舶重工集团有限公司 Method for installing disposable ballast device and special tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104526752A (en) * 2015-01-15 2015-04-22 上海信奥科技有限公司 Cutting machine head die set fastening device
CN109664987A (en) * 2018-11-19 2019-04-23 四川大学 A kind of self power generation portable bicycle lighting device
CN111186540A (en) * 2020-01-16 2020-05-22 武昌船舶重工集团有限公司 Method for installing disposable ballast device and special tool

Similar Documents

Publication Publication Date Title
CN203712304U (en) Positioning device for processing of piston pin holes
CN104097089B (en) Rotary table hydraulic clamp
CN204262779U (en) Shaft forgings drill jig positioning tool
CN103658760A (en) Arc-shaped plate drilling positioning device
CN202021367U (en) Drill jig positioning mechanism
CN202240580U (en) Tool specialized for drilling through hole on cylindrical component
CN203665144U (en) Clamping tool of shaft part
CN103551887A (en) Machine vise
CN202639423U (en) Drilling device for eyelet bolt
CN203649931U (en) Special clamping apparatus for boring of robot wrist connector
CN103264297A (en) Joint surface processing fixture for wine bottle moulds
CN103586707B (en) A kind of robot wrist's connector bore hole special fixture
CN203664876U (en) Wire cutting machining device
CN203566358U (en) High-precision drilling clamp
CN203390603U (en) Clamp having floating-type positioning pin
CN111390644A (en) Clamp capable of rotating and adjusting eccentricity on indexing chuck
CN203448697U (en) Clamp for machining of spherical surface of butterfly valve
CN205668157U (en) A kind of four station four tangent plane fast hydraulic pressure fixtures
CN208976909U (en) A kind of arcwall face drilling-hole positioning device
CN204771648U (en) Industrial robot transmission shaft keyway add clamping apparatus
CN204594397U (en) A kind of chamfering slide calliper rule
CN203853815U (en) End surface machining fixture for porous connecting rod crank
CN204514254U (en) Right alignment detection tool
CN102990445A (en) Device for machining and positioning fine hole of bolt
CN204175732U (en) Large-scale plate parts locking device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140716

Termination date: 20141230

EXPY Termination of patent right or utility model