CN206047710U - A kind of crankshaft crank pin journal processes eccentric fixture - Google Patents

A kind of crankshaft crank pin journal processes eccentric fixture Download PDF

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Publication number
CN206047710U
CN206047710U CN201620975480.8U CN201620975480U CN206047710U CN 206047710 U CN206047710 U CN 206047710U CN 201620975480 U CN201620975480 U CN 201620975480U CN 206047710 U CN206047710 U CN 206047710U
Authority
CN
China
Prior art keywords
basal disc
fixed
fixture
eccentric
eccentric throw
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
CN201620975480.8U
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Chinese (zh)
Inventor
赵德军
仇衍华
王吉斌
唐闯
祝开驰
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.)
LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS Co Ltd
Original Assignee
LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS 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 LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS Co Ltd filed Critical LIAONING 518 INTERNAL-COMBUSTION ENGINE FITTINGS Co Ltd
Priority to CN201620975480.8U priority Critical patent/CN206047710U/en
Application granted granted Critical
Publication of CN206047710U publication Critical patent/CN206047710U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model discloses a kind of crankshaft crank pin journal processing eccentric fixture, and basal disc B can slide in the dovetail groove of basal disc A;It is threaded connection with eccentric throw regulating bolt above basal disc B;Eccentric throw regulating bolt is connect with the block shaft being fixed on basal disc A and by boss axially position;Survey mass in eccentric throw is set on basal disc B, survey mass 25 under eccentric throw is set on basal disc A;On basal disc B, fixation clamp is concrete;Positioning tile is fixed in fixture body;Positioning tile upper end is pressing plate, and bent axle is clamped and fastened by eyelet bolt by positioning tile and pressing plate;Fixture body side surface is installed plug housing by location hole and is fixed by screws in fixture body side surface;The groove fit of latch, latch front end and index dial is set in plug housing;Index dial is fixed on the trunnion of bent axle.The utility model has the advantages that:The time of crank-pin eccentric fixture adjustment is reduced, and reduces fixture manufacturing cost, it is convenient to operate.

Description

A kind of crankshaft crank pin journal processes eccentric fixture
Technical field
This utility model is related to mechanical field, specifically a kind of fixture.
Background technology
When crankshaft pin journal surface is processed using car (mill) bed, first pass through a pair and be separately mounted to car (mill) bed main shaft Eccentric fixture device on case main tapping and on boot spindle nose, clamps the trunnion of crankshaft two end, by eccentric fixture device The eccentric throw dimensional accuracy of manufacture itself makes crank-pin axle journals centrage concentric with car (mill) bed main shaft, then carries out cutting and adds Work.
Existing fixture operation is complicated, wastes time and energy, and anthropic factor affects larger, and frequent easy disassembling is damaged lathe master Axle, and versatility is bad, manufactures fixture high cost, repeats above-mentioned adjustment process, low production efficiency when changing product every time.
Utility model content
To solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of convenient mounting and clamping, adjusts simple and precision Higher fixture, concrete technical scheme are as follows:
A kind of crankshaft crank pin journal processes eccentric fixture, and basal disc A is fixedly mounted on machine tool chief axis;Arrange on basal disc A Recessed dovetail groove, arranges convex oat tail groove structure on basal disc B, the convex oat tail groove structure coordinates to ensure that basal disc B can with recessed dovetail groove Slide in the dovetail groove of basal disc A;It is threaded connection with eccentric throw regulating bolt above basal disc B;In eccentric throw regulating bolt Portion is connect with the block shaft being fixed on basal disc A and by boss axially position;Survey mass in eccentric throw is set on basal disc B, in base Survey mass 25 under eccentric throw is set on disk A;On basal disc B, fixation clamp is concrete;Positioning tile is fixed in fixture body;Positioning tile upper end is Bent axle is clamped and is fastened by eyelet bolt by pressing plate, positioning tile and pressing plate;Fixture body side surface installs plug housing by location hole And it is fixed by screws in fixture body side surface;The groove fit of latch, latch front end and index dial is set in plug housing;Index dial It is fixed on the trunnion of bent axle.
Spring is set between latch and plug housing.
Clamp body front end both sides are respectively fixedly connected eyelet bolt by the cooperation of eyelet bolt bearing pin;Eyelet bolt and work Section bolt bearing pin eyelet bolt is fixed together with holding screw.
The recessed dovetail groove side arranges drift, and the drift is fixed on basal disc A by drift fixed seat.
The utility model has the advantages that:
The time of crank-pin eccentric fixture adjustment is reduced, and reduces fixture manufacturing cost, it is convenient to operate.
Description of the drawings
Fig. 1 is front view of the present utility model;
Left views of the Fig. 2 for Fig. 1;
B-B sectional views of the Fig. 3 for Fig. 2;
C-C sectional views of the Fig. 4 for Fig. 1;
Top views of the Fig. 5 for Fig. 2;
H-H sectional views of the Fig. 6 for Fig. 2;
A-A sectional views of the Fig. 7 for Fig. 4;
Fig. 8 is recessed dovetail groove inner wedge iron scheme of installation.
Specific embodiment
Illustrate this utility model below in conjunction with the accompanying drawings, as illustrated, this utility model include clamp body 3, pressing plate 4, Eyelet bolt 5, band shoulder nut 6, eyelet bolt bearing pin 7, eyelet bolt holding screw 8, screw 9, positioning tile 10, index dial 11st, screw 12, plug housing 13, latch 14, handle bearing pin 15, handle 16, spring 17, eccentric throw regulating bolt 18, block 19, base Survey mass 25 etc. under survey mass 24, eccentric throw in disk A 20, basal disc B 21, drift 22, drift fixed seat 23, eccentric throw;
Basal disc A 20 is arranged on machine tool chief axis 2 by location hole 32, and is fixedly connected by screw;The F of basal disc A 20 Recessed dovetail groove 34 is machined with face, 34 side of recessed dovetail groove equipped with the drift 22 after match grinding, on the drift 22 after adjusting Portion is fixed on the F faces of basal disc A by drift fixed seat 23, and convex oat tail groove structure, 20 Hes of basal disc A are machined with basal disc B 21 Basal disc B 21 is cooperated by dovetail groove, and is eliminated between basal disc A 20 and basal disc B 21 between dovetail groove by drift 22 Gap, with the dovetail groove center line of basal disc B 21 when guaranteeing that basal disc B 21 is moved up and down all the time through machine tool chief axis axis, basal disc A 20 F faces fovea superior dovetail groove both sides are machined with T-slot 33, for basal disc B 21 position determine after, with T-slot bolt by basal disc B 21 is fixedly connected on the F faces of basal disc A 20;The upper end of basal disc B 21 is drilled with screwed hole, and eccentric throw regulating bolt 18 is screwed in should Screwed hole;The bar portion of 18 upper end of eccentric throw regulating bolt is fixed with the boss 35 of two lockings, and the bar portion passes through boss 35 Middle through hole, two planes of 35 inner side plane of boss and block 19 cooperate positioning, it is ensured that rotating eccentricity is away from regulation spiral shell During bolt 18, the basal disc B 21 and 3 entirety of clamp body are improved or are declined, so as to realize that eccentric throw is adjusted;Block 19 passes through Screw is fixed on the F faces upper end of basal disc A 20;The survey mass 24 in the side fixed installation eccentric throw of basal disc B, in the F of basal disc A Crankshaft crank pin journal, in the upper and lower survey mass installation process of eccentric throw, is added by survey mass 25 first under face fixed installation eccentric throw Work eccentric fixture eccentric throw is adjusted to zero, then after ensureing that the upper and lower survey mass G faces of eccentric throw completely attach to, by eccentric throw, Lower adjustment block is separately fixed at the F faces of the side of basal disc B, basal disc A, during realizing the adjustment of eccentric fixture eccentric throw, leads to The distance in the upper and lower survey mass G faces of measurement eccentric throw is crossed, the numerical value of eccentric throw is accurately drawn;Clamp body 3 is fixed by location hole 36 Position is on basal disc B 21, and is fixedly connected by screw;Positioning tile 10 passes through 27 location and installation of semicircle orifice in clamp body 3, And fixed with screw 9;Respectively coordinated by eyelet bolt bearing pin 7 in 3 front end both sides of clamp body and be fixedly connected eyelet bolt 5;In order to Vibration in 7 course of processing of eyelet bolt bearing pin is prevented, with eyelet bolt with tightly between eyelet bolt 5 and eyelet bolt bearing pin 7 Determine screw 8 to be fixed together;Eyelet bolt upper end is pressing plate 4, is clamped bent axle by eyelet bolt 5;3 side of clamp body passes through 28 location and installation plug housing 13 of location hole, and it is fixed by screws in 3 side of clamp body;Latch 14 is with plug housing 13 by positioning Hole 29 positions, and spring 17 is installed between latch 14 and plug housing 13, to prevent 14 working condition of latch from loosening;Before latch 14 End coordinates positioning with index dial 11 by plane 30, to realize positioning when processing out of phase crank-pin axle journals;After latch 14 End mounting knob 16, handle 16 is positioned by location hole 31, and two pieces is fixed together with handle bearing pin 15;
When this utility model is used:
1st, suitable crank-pin axle journals are processed eccentric fixture positioning tile, pressing plate to install
2nd, on the trunnion of bent axle install an index dial 11, then detection flat board on centering crank to be processed Then the locating slot axis opened up on pin axis and index dial 11 clamps index dial 11 into (90 degree) angle for determining;
3rd, the connecting bolt of basal disc B 21 and basal disc A20 is unclamped, basal disc B is adjusted away from regulating bolt 18 by rotating eccentricity The part such as 21 and clamp body 3, till the distance between upper and lower survey mass G faces of eccentric throw reach preferable eccentric throw numerical value, will Basal disc B 21 and basal disc A20 are fixed with connecting bolt
4th, bent axle is sling on eccentric fixture device, and makes the positioning on the locating slot and fixture on index dial 11 Pin coordinates positioning, and then the trunnion of bent axle is clamped by fixture;
Start formal car (mill) and cut processing.

Claims (4)

1. a kind of crankshaft crank pin journal processes eccentric fixture, it is characterised in that:Basal disc A is fixedly mounted on machine tool chief axis;Base Recessed dovetail groove is set on disk A, convex oat tail groove structure is set on basal disc B, the convex oat tail groove structure coordinates to protect with recessed dovetail groove Card basal disc B can slide in the dovetail groove of basal disc A;It is threaded connection with eccentric throw regulating bolt above basal disc B;Eccentric throw is adjusted Section bolt top is connect with the block shaft being fixed on basal disc A and by boss axially position;Arrange on basal disc B in eccentric throw and measure Block, arranges survey mass 25 under eccentric throw on basal disc A;On basal disc B, fixation clamp is concrete;Positioning tile is fixed in fixture body;Positioning Watt upper end is pressing plate, and bent axle is clamped and fastened by eyelet bolt by positioning tile and pressing plate;Fixture body side surface is pacified by location hole Plug key seat and be fixed by screws in fixture body side surface;Latch is set in plug housing, and the groove of latch front end and index dial is matched somebody with somebody Close;Index dial is fixed on the trunnion of bent axle.
2. crankshaft crank pin journal according to claim 1 processes eccentric fixture, it is characterised in that:Latch and plug housing it Between spring is set.
3. crankshaft crank pin journal according to claim 1 processes eccentric fixture, it is characterised in that:Clamp body front end both sides Respectively coordinated by eyelet bolt bearing pin and be fixedly connected eyelet bolt;Eyelet bolt and eyelet bolt bearing pin eyelet bolt tightening Screw is fixed together.
4. crankshaft crank pin journal according to claim 1 processes eccentric fixture, it is characterised in that:The recessed dovetail groove side Face arranges drift, and the drift is fixed on basal disc A by drift fixed seat.
CN201620975480.8U 2016-08-30 2016-08-30 A kind of crankshaft crank pin journal processes eccentric fixture Expired - Fee Related CN206047710U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620975480.8U CN206047710U (en) 2016-08-30 2016-08-30 A kind of crankshaft crank pin journal processes eccentric fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620975480.8U CN206047710U (en) 2016-08-30 2016-08-30 A kind of crankshaft crank pin journal processes eccentric fixture

Publications (1)

Publication Number Publication Date
CN206047710U true CN206047710U (en) 2017-03-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620975480.8U Expired - Fee Related CN206047710U (en) 2016-08-30 2016-08-30 A kind of crankshaft crank pin journal processes eccentric fixture

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112633A (en) * 2016-08-30 2016-11-16 辽宁五八内燃机配件有限公司 A kind of crankshaft crank pin journal processing eccentric fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106112633A (en) * 2016-08-30 2016-11-16 辽宁五八内燃机配件有限公司 A kind of crankshaft crank pin journal processing eccentric fixture

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170329

Termination date: 20210830

CF01 Termination of patent right due to non-payment of annual fee