CN206047710U - A kind of crankshaft crank pin journal processes eccentric fixture - Google Patents
A kind of crankshaft crank pin journal processes eccentric fixture Download PDFInfo
- 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
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- 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.)
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- A Measuring Device Byusing Mechanical Method (AREA)
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
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.
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
ID=58377434
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)
| Country | Link |
|---|---|
| CN (1) | CN206047710U (en) |
Cited By (1)
| 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 |
-
2016
- 2016-08-30 CN CN201620975480.8U patent/CN206047710U/en not_active Expired - Fee Related
Cited By (1)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |