CN106112042A - A kind of crank throw positioning fixture - Google Patents
A kind of crank throw positioning fixture Download PDFInfo
- Publication number
- CN106112042A CN106112042A CN201610583717.2A CN201610583717A CN106112042A CN 106112042 A CN106112042 A CN 106112042A CN 201610583717 A CN201610583717 A CN 201610583717A CN 106112042 A CN106112042 A CN 106112042A
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- China
- Prior art keywords
- location
- hole
- positioning
- spring chuck
- crank throw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/4006—Gripping the work or tool by a split sleeve
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a kind of crank throw positioning fixture, it is characterised in that: include location-plate, push rod, tapered sleeve, spring chuck and a pair positioning arm；On this location-plate, parallel the first hole, location and second that offers positions hole；Described tapered sleeve is installed in the first hole, location；Described push rod is installed in described second hole, location；Described spring chuck is installed in described tapered sleeve and this spring chuck male cone (strobilus masculinus) matches with described tapered sleeve internal taper hole；It is provided with baffle ring outside described spring chuck；This symmetrical along the first hole, location and the second location hole line of centres to positioning arm and its in the middle part of be all articulated with on described location-plate lateral surface；This push rod outer end is provided with tapering and this is provided with gap between positioning arm the first end, and this is positioned at described spring chuck both sides to positioning arm the second end.The present invention can realize precise positioning and be difficult to bias.
Description
Technical field
The present invention relates to a kind of crank throw positioning fixture.
Background technology
Crank throw is to be made up of a rod journal (crank-pin), left and right two crank arms and left and right two trunnions, and
Bent axle is made up of several crank throws.
In order to the problem that existing fixture exists is described, can be found in Fig. 1-3, the rod journal on crank throw when Vehicle Processing,
Being installed on the main shaft disk (300) of lathe by the location dish (200) of fixture, this location dish (200) is provided with trunnion location
Eccentric certain distance between hole (201), and this trunnion (201) center, hole, location and main shaft disk (300) axle center.And crank throw location
After need to meet: first, the rod journal (101) of this crank throw is coaxial with main shaft disk (300) and can not move axially, second: this song
Crank arm (102) location turned clamps and can not radial deflection.
Wherein Fig. 1 is as perfect condition, when both sides clamping force F of this crank arm (102) is consistent, this rod journal
(101) it is coaxial with main shaft disk (300).Fig. 2 is then the defect existed as prior art, i.e. this crank arm (102) both sides
Clamping force F is inconsistent or behind trunnion (100) location, unbalance stress produces torque W, this rod journal (101) and main shaft disk
(300) no longer coaxially there is certain bias.And existing fixture is positioned at crank arm (102) clamping and positioning and trunnion (100)
Behind location, all deposit problem inconsistent for F in fig. 2, and be required for calibration verification after clamping each time, there is operation complexity, auxiliary
Help time length and the defect such as precision is uncontrollable；And when crank throw high speed finish turning, this crank throw shakes because eccentric force is uneven, leads
Cause finished size error big, have a strong impact on machining accuracy, working (machining) efficiency and process safety.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of crank throw locating clip
Have, precise positioning can be realized and be difficult to bias.
For achieving the above object, the invention provides a kind of crank throw positioning fixture, it is characterised in that: include location-plate (1),
Push rod (2), tapered sleeve (3), spring chuck (4) and a pair positioning arm (5)；This location-plate (1) is the most parallel offers the first location
Hole (11) and the second hole, location (12)；Described tapered sleeve (3) is installed in the first hole, location (11)；Described push rod (2) is installed on institute
State in the second hole, location (12)；Described spring chuck (4) be installed in described tapered sleeve (3) and this spring chuck (4) male cone (strobilus masculinus) with
Described tapered sleeve (3) internal taper hole matches；Described spring chuck (4) outside is provided with baffle ring (7)；This to positioning arm (5) along
One hole, location (11) and second location hole (12) line of centres is symmetrical and is all articulated with outside described location-plate (1) in the middle part of it
On face；This push rod (2) outer end is provided with tapering (21) and this is inserted for this tapering (21) being provided with between positioning arm (5) first end
The gap (51) entered, this is positioned at the both sides of described spring chuck (4) to positioning arm (5) second end.
Use such scheme, first, can pass through the tapering (21) of push rod (2) insert this to positioning arm (5) first end it
Between gap (51) after, positioning arm (5) first end can back down separation by this, and rotate at location-plate (1) upper lever so that
This to positioning arm (5) second end close to each other and by symmetrical for the crank arm (102) of crank throw location and balance clamping；Second, can
Slid axially towards the cooperation of spring chuck (4) male cone (strobilus masculinus) by described tapered sleeve (3), radially inside contract with pressuring spring chuck (4), can
The trunnion being inserted therein coaxially is positioned and circumference uniformly clamping；3rd, owing to this positions hole to positioning arm (5) along first
(11) and the second location hole (12) line of centres is symmetrical；And tapering (21) circumference of this push rod (2) is symmetrical, therefore this is to fixed
Position pivoted arm (5) first end be symmetrical separately to make also symmetrical location to clamp positioning arm (5) second end simultaneously, and with this song
Shaft arm (102) lateral symmetry positions, and its centrage can be made to keep unanimously and not offseting, to reach crank throw is realized precise positioning
Purpose.
Further, described location-plate (1) inside parallel is provided with push pedal (6), this push rod (2) and tapered sleeve (3) all with
Described push pedal (6) is affixed, and described push pedal (6) is connected with a telescoping cylinder (8).This telescoping cylinder (8) is for providing reciprocal for push pedal (6)
Power, to realize automatic impaction or to unclamp；Owing to push rod (2) and tapered sleeve (3) are all affixed with described push pedal (6), can be pushed away by this
Plate (6) drives push rod (2) to move back with tapered sleeve (3) Tong Bu pine, can realize synchronizing to crank arm (102) and trunnion (100) rapidly
Location and clamping, fast response time, can save the time exponentially, and can reduce labor intensity；And can avoid because repeatedly filling
Folder and the unbalance stress that produces, the problem such as loosen.
Further, the pair of positioning arm (5) first end is equipped with inclined-plane (50) and to make described gap (51) be V
Shape socket.This V shape socket can make the tapering (21) of push rod (2) preferably guide insertion, and quality of fit is high, and uniform force, with
Time can reduce the impact injury to tapering (21) conical surface.
Further, described spring chuck (4) outer end is provided with the location shaft shoulder (41), and this baffle ring (7) positioning sleeve is contained in described
On the location shaft shoulder (41), and this baffle ring (7) is detachable affixed with described location-plate (1).This baffle ring (7) is used for preventing alligator clamp
Set (4) axially outwardly slides；Use detachable affixed, this baffle ring (7) convenient disassembly, it is also convenient for taking of these spring chuck (4)
Go out cleaning or change.
Further, described spring chuck (4) is provided with at least 2 axial grooves (42) and each axial groove (42) along its circumference
It is uniformly distributed.Radial variable circumference during described spring chuck (4) degree of tightness is symmetrical, therefore this trunnion be clamped the location Later Zhou Dynasty, one of the Five Dynasties to
Uniform force, it is to avoid crank throw location eccentricity.
Further, described spring chuck (4) endoporus is by outer little interior big location endoporus (401) and deformation endoporus
(402) stepped hole constituted.The aperture of this deformation endoporus (402) is relatively big, can make the spring chuck (4) of its corresponding section after stress
It is easier to deformation, being removed and inserted into when trunnion can be facilitated to unclamp.
Further, described axial groove (42) offers, in described deformation endoporus (402) section, the width making its notch widen
Groove (43).After can making spring chuck (4) stress, deformation strengthens.
Further, described location-plate (1) is installed with positioning pressuring plate (15), this positioning pressuring plate (15) inner side be provided with for
This groove (151) that positioning arm (5) first end is accommodated.This positioning pressuring plate (15) can prevent positioning arm (5) first end to
Outer loosening, work safer.
Further, also include connecting assembly (9)；This connection assembly (9) includes being sequentially connected with from inside to outside the machine of being arranged on
Spindle coupling disc (94), stroke limit set (93), clamp bottom board (92) and movable tray (91) on bed main shaft；Described dump bottom
It is connected by positioning key (95) between dish (91) center and clamp bottom board (92) center；Described push rod (2) and tapered sleeve (3)
The inner is the most movable to be connected with described push pedal (6) afterwards through described movable tray (91) and clamp bottom board (92), described push pedal
(6) in profile is discoid and is installed on described stroke limit set (93)；Described spindle coupling disc offers centre bore on (94)
(941), being provided with pull bar (96) in described centre bore (941), this pull bar (96) one end is affixed with described push pedal (6) and its another
Hold affixed with telescoping cylinder (8) outfan；Counterweight (97) it is also equipped with on described clamp bottom board (92).
Further, on the pair of positioning arm (5) second end, symmetry is equipped with a pair location screw (14).This is to fixed
Location spacing size scalable between position screw (14), with being positioned to of satisfied crank arm (102) width to different crank throws
Asking, practicality is higher.
Beneficial effects of the present invention is as follows:
First, crank arm lateral symmetry can be positioned by this by positioning arm the second end so that it is stress balance；Meanwhile, spring
Chuck inside contracts clamping, and this spring chuck coaxially positions with tapered sleeve, and axle center is not the most eccentric, determines it addition, this trunnion is clamped
The position Later Zhou Dynasty, one of the Five Dynasties is to uniform force, it is possible to do not offset after making crank throw location.
Second, this push rod uses tapering to insert, and makes positioning arm the second end uniform force and corner consistent, can reduce simultaneously
Impact injury to the tapering conical surface.
3rd, it is provided with the axial groove of outer narrow inner width owing to this alligator clamp puts, the deformable amount of location endoporus can be strengthened, make
It unclamps rear endoporus and opens relatively big, facilitates the gap of trunnion to insert, phase mutual friction can be avoided to affect positioning precision.
4th, using telescoping cylinder to control just can be to the crank arm of crank throw and trunnion synchronous clamping or unclamp, only need
One-off, quickly, work efficiency is high in response, and without manual operation intervention, beneficially automated production.
Accompanying drawing explanation
Fig. 1 is the structural representation of this crank throw.
Fig. 2 is this crank throw a kind of clamp structure schematic diagram in the ideal situation.
Fig. 3 is Fig. 2 fixture structural representation after clamping during bias.
Fig. 4 is the semi-cutaway of the present invention.
Fig. 5 is the structural representation of this location-plate.
Fig. 6 is the structural representation of this tapered sleeve.
Fig. 7 is the semi-cutaway of this spring chuck.
Fig. 8 is the axonometric chart of this spring chuck.
Fig. 9 is the structural representation of this positioning arm.
Figure 10 is the structural representation of this positioning pressuring plate.
Figure 11 is the structural representation of this movable tray.
Figure 12 is the structural representation of this clamp bottom board.
Figure 13 is the structural representation of this push pedal.
Figure 14 is this axonometric chart to a kind of concrete mounting means of positioning arm.
Figure 15 is present invention structural representation when being positioned by crank throw.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
See Fig. 4, a kind of crank throw positioning fixture, turn including location-plate 1, push rod 2, tapered sleeve 3, spring chuck 4, a pair location
Arm 5, push pedal 6, baffle ring 7, telescoping cylinder 8 and connection assembly 9.
In conjunction with Fig. 4-5, wherein, on described location-plate 1, parallel first hole, location 11 and second that offers positions hole 12 and peace
Dress hole, this location-plate 1 is installed on outside described connection assembly 9.
Seeing Fig. 4, wherein, described push rod 2 matched in clearance is installed in described second hole 12, location, and this push rod 2 outer end sets
Having tapering 21, its inner is vertical with described push pedal 6 after passing described second hole 12, location to be connected.
In conjunction with Fig. 4-6, wherein, described tapered sleeve 3 matched in clearance is installed in the first hole, location 11；It is bullet in described tapered sleeve 3
Spring chuck pilot hole 31, its outer end is internal taper hole 32, and its other end is closure face 33, this closure face be provided with for push pedal 6
The connecting hole 34 connected.
In conjunction with Fig. 4,7 and 8, wherein, described spring chuck 4 can in being installed on the spring chuck pilot hole 31 of described tapered sleeve 3
Sliding axially, and the internal taper hole 32 setting male cone (strobilus masculinus) 40 and described tapered sleeve 3 in this spring chuck 4 outer end wall matches, its tapering b is
120-160 ° of scope is optimal, and this spring chuck 4 outermost end is additionally provided with the step-like location shaft shoulder 41.
Seeing Fig. 7-8, described spring chuck 4 is provided with 2-4 axial groove 42 and each axial groove 42 and uniformly divides along its circumference
Cloth；Radial variable circumference during described spring chuck 4 degree of tightness can be made symmetrical, and therefore this trunnion is clamped the location Later Zhou Dynasty, one of the Five Dynasties to stress
Uniformly；Described spring chuck 4 endoporus is the stepped hole being made up of outer little interior big location endoporus 401 and deformation endoporus 402.Should
The aperture of deformation endoporus 402 is relatively big, the spring chuck 4 of its section can be made to be easier to deformation, can facilitate trunnion after radial force
Being removed and inserted into when unclamping；Described axial groove 42 offers, on described deformation endoporus 402 sections, the sipes making its notch widen
43；After can making spring chuck 4 stress further, deformation strengthens.
See Fig. 4, it addition, this baffle ring 7 positioning sleeve is contained on the described location shaft shoulder 41, and this baffle ring 7 and described location-plate 1
Affixed by screw；This baffle ring 7 is used for preventing spring chuck 4 from axially outwardly sliding；Employing screw is affixed, and this baffle ring 7 is detachable
Convenient, it is also convenient for the taking-up cleaning of this spring chuck 4 or changes.
Seeing Fig. 9 and 14, wherein, on described positioning arm 5, middle part is provided with hinge hole 503, and this positioning arm 5 is through rotating shaft 13
It is hinged on described location-plate 1 lateral surface；This positioning arm 5 first end 501 is located close to outside the tapering 21 of push rod 2, and it is years old
Two ends 502 are located close to outside described spring chuck 4 and this second end 502 is provided with the tapped through hole towards spring chuck 4 direction
504, in conjunction with Figure 15, in this tapped through hole 504, it is equipped with location screw 14, this location screw 14 screw thread on tapped through hole 504
Cooperation position scalable, to change the spacing between positioning end and the described spring chuck 4 on the screw 14 of location, to meet not
With the positioning requirements of crank arm 102 width of crank throw, practicality is higher.
In conjunction with Fig. 4,14 and 15, wherein, the pair of positioning arm 5 structure is consistent and fixed along the first hole, location 11 and second
Hole 12, the position line of centres is symmetrical；And this is to being provided with the gap 51 inserted for this tapering 21 between positioning arm 5 first end,
This is symmetrically positioned in the both sides of described spring chuck 4 to positioning arm 5 second end.
In conjunction with Fig. 9 and 14, the pair of positioning arm 5 first end is equipped with inclined-plane 50 and makes described gap 51 for V shape
Socket；This V shape socket can make the tapering 21 of push rod 2 preferably guide insertion, and guiding accuracy is high, and the both sides of this V shape socket are subject to
Power is uniform, it is possible to avoid the impact injury to tapering 21 conical surface.
See Figure 10 and 4, described location-plate 1 is installed with positioning pressuring plate 15, inside this positioning pressuring plate 15, be provided with use
In this groove 151 that positioning arm 5 first end is accommodated simultaneously.This positioning pressuring plate 15 can prevent positioning arm 5 first end 501 to
Outer loosening, play and more steady safety of moving can be reduced simultaneously.
Seeing Fig. 4, wherein, described connection assembly 9 includes being sequentially connected with the main shaft being arranged on machine tool chief axis from inside to outside
Connection dish 94, stroke limit set 93, clamp bottom board 92 and movable tray 91.
Seeing Fig. 4, described stroke limit set 93 is installed between spindle coupling disc 94 and clamp bottom board 92, described push pedal 6
Profile is discoid and matched in clearance is in described stroke limit set 93, and described stroke limit overlaps 93 axial widths more than this push pedal
6 thickness and leave the stroke that necessarily slides axially, and make its push pedal 6 can stroke limit set 93 in reciprocal spacing slip, due to this
Inner and the described push pedal 6 of push rod 2 is vertical affixed, and on this tapered sleeve 3, connecting hole 34 is vertical with described push pedal 6 solid by an intermediate bar 35
Connect, therefore push rod 2 and tapered sleeve 3 can be driven to move back and forth in setting stroke by push pedal 6 and realize synchronization and unclamp and clamp shape
Being precisely controlled of state.
Seeing Fig. 4,11-12, the relative inner between described movable tray 91 and clamp bottom board 92 is arranged with pair of keys
Groove 922, both located keys 95 coordinate location after inserting.This keyway 922 is radially across the core of described movable tray 91；Cause
This described movable tray 91 can slide and its installation site of radially adjustable along keyway 922 direction with clamp bottom board 92, can basis
Spacing between crank link axle journal and trunnion is different and makees corresponding regulation, and this fixture can be made to meet different crank throw location processing
And will not be eccentric behind location.On this movable tray 91, establishing is provided with two bar shaped installing holes 912 simultaneously, for coordinating along keyway
Fixedly mount the most unaffected when 922 directions are moved.
See Fig. 4,11-12, described movable tray 91 is additionally provided with and passes freely through for push rod 2 and tapered sleeve 3 axial reciprocating
Two perforation 911, and described clamp bottom board 92 on offer along this keyway 922 direction conllinear distribution two the first bar shapeds lead to
Hole 921.After the described movable tray 91 installation site along keyway 922 direction changes, this push rod 2 and tapered sleeve 3 are at dump bottom
Still can axially free move back and forth in dish 91.
Seeing Fig. 4 and 13, wherein, described push pedal 6 medial surface is provided with step-like and along keyway 922 direction two Article 2
Shape through hole 61, is separately installed with two for being connected with intermediate bar 35 and push rod 2 in these two the second strip through-holes 61
Nut 62, the linkage section that this intermediate bar 35 and push rod 2 are inserted in described second strip through-hole 61 aperture be matched in clearance and
All can along keyway 922 direction in two the second strip through-holes 61 slidably.Therefore movable tray 91 can be coordinated along keyway
During 922 direction regulation, this intermediate bar 35 and push rod 2 also can adjusted in concert.
Seeing Fig. 4, wherein, described spindle coupling disc 94 offers centre bore 941, and described centre bore 941 internal clearance is installed
Having pull bar 96, this pull bar 96 one end is affixed with described push pedal 6 and its other end is affixed with telescoping cylinder 8 outfan；At the bottom of described fixture
The counterweight 97 for adjustment it is also equipped with on plate 92.
Seeing Fig. 4, wherein, described telescoping cylinder 8 is for providing reciprocating power for push pedal 6, to realize automatic impaction or to unclamp,
Specifically can use cylinder or hydraulic cylinder.Owing to push rod 2 and tapered sleeve 3 are all affixed with described push pedal 6, therefore this push pedal 6 can drive top
Pine synchronize with tapered sleeve 3 moves back bar 2, realizes synchronizing location and clamping, response speed to crank arm 102 and trunnion 100 the most rapidly
Hurry up, can save the time exponentially, and labor intensity can be reduced；And the unbalance stress produced because of multiple clamping can be avoided,
Loosen etc. problem.
See Fig. 4, in use, owing to push rod 2 and tapered sleeve 3 are all affixed with described push pedal 6, be push pedal 6 by telescoping cylinder 8
Thering is provided outside power, this push pedal 6 can drive push rod 2 extrapolation Tong Bu with tapered sleeve 3；Wherein the tapering 21 of this push rod 2 is outwards inserted and is somebody's turn to do
Behind the gap 51 between positioning arm 5 first end, positioning arm 5 first end can be backed down separation by this, and on location-plate 1
Lever rotation so that this to positioning arm 5 second end close to each other and by symmetrical for the crank arm 102 of crank throw location and balance clamp
Tightly；Meanwhile, described tapered sleeve 3 coordinates towards spring chuck 4 male cone (strobilus masculinus) and slides axially, and radially inside contracts with pressuring spring chuck 4, can be by
The trunnion being inserted therein coaxially positions and circumference uniformly clamping.Owing to this positions hole 11 and second to positioning arm 5 along first
Hole 12, the location line of centres is symmetrical；And tapering 21 circumference of this push rod 2 is symmetrical, therefore positioning arm 5 first end is by this
Symmetrical separately, make simultaneously to positioning arm 5 second end also can the clamping of symmetrical location, and position with this spring chuck 4 lateral symmetry,
Its centrage can be made to keep consistent and will not offset, to reach crank throw is realized the purpose of precise positioning.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
Personnel are available by logical analysis, reasoning, or a limited experiment the most on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a crank throw positioning fixture, it is characterised in that: include location-plate (1), push rod (2), tapered sleeve (3), spring chuck (4) and
A pair positioning arm (5)；Upper parallel the first hole, location (11) and second that offers of this location-plate (1) positions hole (12)；Described cone
Set (3) is installed in the first hole, location (11)；Described push rod (2) is installed in described second hole, location (12)；Described alligator clamp
Overlap in (4) are installed on described tapered sleeve (3) and this spring chuck (4) male cone (strobilus masculinus) matches with described tapered sleeve (3) internal taper hole；Described bullet
Spring chuck (4) outside is provided with baffle ring (7)；Positioning arm (5) is positioned along hole (12) by this along the first hole, location (11) and second
Heart line symmetrical and its in the middle part of be all articulated with on described location-plate (1) lateral surface；This push rod (2) outer end is provided with tapering (21)
And this is to being provided with the gap (51) inserted for this tapering (21) between positioning arm (5) first end, this is to positioning arm (5)
Two ends are positioned at the both sides of described spring chuck (4).
2. a kind of car crank throw positioner as claimed in claim 1, it is characterised in that: described location-plate (1) inside parallel sets
Having installed push pedal (6), this push rod (2) and tapered sleeve (3) are all affixed with described push pedal (6), described push pedal (6) and a telescoping cylinder (8)
Connect.
3. a kind of crank throw positioning fixture as claimed in claim 1, it is characterised in that: the pair of positioning arm (5) first end
On be equipped with inclined-plane (50) and to make described gap (51) be V shape socket.
4. a kind of crank throw positioning fixture as claimed in claim 1, it is characterised in that: described spring chuck (4) outer end is provided with fixed
The position shaft shoulder (41), this baffle ring (7) positioning sleeve is contained on the described location shaft shoulder (41), and this baffle ring (7) can with described location-plate (1)
Dismountable is affixed.
5. a kind of crank throw positioning fixture as according to any one of claim 1-4, it is characterised in that: described spring chuck (4)
It is provided with at least 2 axial grooves (42) and each axial groove (42) is uniformly distributed along its circumference.
6. a kind of crank throw positioning fixture as claimed in claim 5, it is characterised in that: described spring chuck (4) endoporus is by outward
The stepped hole that little interior big location endoporus (401) and deformation endoporus (402) are constituted.
7. a kind of crank throw positioning fixture as claimed in claim 6, it is characterised in that: described axial groove (42) is in described deformation
The sipes (43) making its notch widen is offered in hole (402) section.
8. a kind of crank throw positioning fixture as claimed in claim 1, it is characterised in that: described location-plate is installed with location on (1)
Pressing plate (15), this positioning pressuring plate (15) inner side is provided with the groove (151) accommodated positioning arm (5) first end for this.
9. a kind of crank throw positioning fixture as claimed in claim 2, it is characterised in that: also include connecting assembly (9)；This connection group
Part (9) include being sequentially connected with from inside to outside be arranged on machine tool chief axis spindle coupling disc (94), stroke limit set (93), fixture
Base plate (92) and movable tray (91)；Positioning key is passed through between described movable tray (91) center and clamp bottom board (92) center
(95) it is connected；The inner of described push rod (2) and tapered sleeve (3) is the most movable through at the bottom of described movable tray (91) and fixture
Plate (92) is connected with described push pedal (6) afterwards, and described push pedal (6) profile is discoid and is installed on described stroke limit set (93)
In；Offering centre bore (941) on described spindle coupling disc (94), be provided with pull bar (96) in described centre bore (941), this draws
Bar (96) one end is affixed with described push pedal (6) and its other end is affixed with telescoping cylinder (8) outfan；On described clamp bottom board (92)
It is also equipped with counterweight (97).
10. a kind of crank throw positioning fixture as according to any one of claim 1-4, it is characterised in that: the pair of location turns
On arm (5) second end, symmetry is equipped with a pair location screw (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583717.2A CN106112042B (en) | 2016-07-22 | 2016-07-22 | A kind of crank throw positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583717.2A CN106112042B (en) | 2016-07-22 | 2016-07-22 | A kind of crank throw positioning fixture |
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| CN106112042A true CN106112042A (en) | 2016-11-16 |
| CN106112042B CN106112042B (en) | 2018-08-21 |
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| CN201610583717.2A Active CN106112042B (en) | 2016-07-22 | 2016-07-22 | A kind of crank throw positioning fixture |
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| CN101172328A (en) * | 2007-10-19 | 2008-05-07 | 大连机床集团有限责任公司 | Self-alignment cramping arrangement for processing disk cover parts |
| CN201389755Y (en) * | 2009-03-30 | 2010-01-27 | 南京数控机床有限公司 | Turning device for eccentric part |
| CN201385225Y (en) * | 2009-04-01 | 2010-01-20 | 大连机床集团有限责任公司 | Chuck-type centering clamping device |
| CN102765003A (en) * | 2012-07-25 | 2012-11-07 | 无锡机床股份有限公司 | Clamping structure for shaft parts |
| CN203356639U (en) * | 2013-06-14 | 2013-12-25 | 天津勤美达工业有限公司 | Downwards-pulling jig for milling connecting device |
| CN204221472U (en) * | 2014-11-09 | 2015-03-25 | 四川新动脉汽车零部件制造有限公司 | For the fixture of numerically controlled lathe quick-clamping special-shaped workpiece |
| CN204449936U (en) * | 2015-01-06 | 2015-07-08 | 贵州西南工具(集团)有限公司 | The processing unit (plant) of the eccentric external diameter of a kind of axial workpiece |
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