CN106112042B - A kind of crank throw positioning fixture - Google Patents
A kind of crank throw positioning fixture Download PDFInfo
- Publication number
- CN106112042B CN106112042B CN201610583717.2A CN201610583717A CN106112042B CN 106112042 B CN106112042 B CN 106112042B CN 201610583717 A CN201610583717 A CN 201610583717A CN 106112042 B CN106112042 B CN 106112042B
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- Prior art keywords
- positioning
- spring chuck
- plate
- hole
- 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
Abstract
The invention discloses a kind of crank throw positioning fixtures, it is characterised in that：Including positioning plate, mandril, tapered sleeve, spring chuck and a pair of of positioning arm；It is parallel on the positioning plate to offer first positioning hole and second location hole；The tapered sleeve is installed in first positioning hole；The mandril is installed in the second location hole；The spring chuck is installed in the tapered sleeve and the spring chuck male cone (strobilus masculinus) matches with the tapered sleeve internal taper hole；It is provided with baffle ring on the outside of the spring chuck；And its middle part symmetrical along first positioning hole and the second location hole line of centres to positioning arm is articulated on the positioning plate lateral surface；The mandril outer end is equipped with tapering and this is equipped with gap between positioning arm first end, this is located at spring chuck both sides to positioning arm second end.The present invention can be achieved precise positioning and be not easy bias.
Description
Technical field
The present invention relates to a kind of crank throw positioning fixtures.
Background technology
Crank throw is by a rod journal (crank-pin), and left and right two crank arms and left and right two trunnions are constituted, and
Bent axle is made of several crank throws.
In order to illustrate existing fixture there are the problem of, reference can be made to Fig. 1-3, when the rod journal on crank throw is in Vehicle Processing,
It is installed on the main shaft disk (300) of lathe by the positioning disk (200) of fixture, which positions equipped with trunnion
Hole (201), and eccentric certain distance between trunnion location hole (201) center and main shaft disk (300) axle center.And crank throw positions
After need to meet：First, the rod journal (101) of the crank throw is coaxial with main shaft disk (300) and cannot move axially, second：The song
Crank arm (102) positioning turned clamps and is unable to radial deflection.
Wherein Fig. 1 be as perfect condition, when the both sides clamping force F of the crank arm (102) is consistent, the rod journal
(101) it is coaxial with main shaft disk (300).And Fig. 2 is then i.e. crank arm (102) both sides as defect of the existing technology
Unbalance stress generates torque W, the rod journal (101) and main shaft disk after clamping force F is inconsistent or trunnion (100) positioning
(300) no longer coaxially exist certain eccentric.And existing fixture is located in crank arm (102) clamping and positioning and trunnion (100)
After positioning, the problem that F is inconsistent in fig. 2 is deposited, and be required for calibration to check after clamping each time, it is auxiliary there are complicated for operation
Help the defects of time is long and precision is uncontrollable；And in crank throw high speed smart car, which shakes because of eccentric force unevenness, leads
It causes finished size error big, seriously affects machining accuracy, processing efficiency and process safety.
Invention content
In view of the drawbacks described above of the prior art, technical problem to be solved by the invention is to provide a kind of crank throw locating clips
Tool can be achieved precise positioning and be not easy bias.
To achieve the above object, the present invention provides a kind of crank throw positioning fixtures, it is characterised in that：Including positioning plate (1),
Mandril (2), tapered sleeve (3), spring chuck (4) and a pair of of positioning arm (5)；It is parallel on the positioning plate (1) to offer the first positioning
Hole (11) and second location hole (12)；The tapered sleeve (3) is installed in first positioning hole (11)；The mandril (2) is installed on institute
It states in second location hole (12)；The spring chuck (4) be installed in the tapered sleeve (3) and spring chuck (4) male cone (strobilus masculinus) with
Tapered sleeve (3) internal taper hole matches；It is provided with baffle ring (7) on the outside of the spring chuck (4)；This is to positioning arm (5) along
A positioning hole (11) and second location hole (12) line of centres is symmetrical and its middle part is articulated on the outside of the positioning plate (1)
On face；Mandril (2) outer end is equipped with tapering (21) and this is equipped between positioning arm (5) first end and is inserted for the tapering (21)
The gap (51) entered, this is located at positioning arm (5) second end the both sides of the spring chuck (4).
Using the above scheme, first, can be inserted by the tapering (21) of mandril (2) this to positioning arm (5) first end it
Between gap (51) after, can by this to the open-top separation of positioning arm (5) first end, and positioning plate (1) upper lever rotate so that
This is close to each other to positioning arm (5) second end and symmetrically positions the crank arm of crank throw (102) and balances clamping；Second, it can
It is slid axially towards the cooperation of spring chuck (4) male cone (strobilus masculinus) by the tapered sleeve (3), is radially inside contracted with pressuring spring chuck (4), it can
The trunnion in it coaxially positioning and circumferential uniformly clamping will be inserted into；Third, due to this to positioning arm (5) along first positioning hole
(11) and second location hole (12) line of centres is symmetrical；And the tapering (21) of the mandril (2) is circumferential symmetrical, therefore this is to fixed
Position pivoted arm (5) first end be it is symmetrical separate, while making also can symmetrically position clamping to positioning arm (5) second end, and with the song
Shaft arm (102) both sides symmetrically position, its center line can be made to be consistent and do not deviated, and precise positioning is realized to crank throw to reach
Purpose.
Further, positioning plate (1) inside parallel setting is equipped with push plate (6), the mandril (2) and tapered sleeve (3) with
The push plate (6) is affixed, and the push plate (6) connect with a telescoping cylinder (8).The telescoping cylinder (8) is used to provide for push plate (6) reciprocal
Power, to realize automatic impaction or release；Due to mandril (2) with tapered sleeve (3) with the push plate (6) it is affixed, can be pushed away by this
Plate (6) drives mandril (2) pine synchronous with tapered sleeve (3) to move back, can be rapidly synchronous with trunnion (100) realization to crank arm (102)
Positioning and clamping, fast response time can exponentially be saved the time, and can reduce labor intensity；And it can avoid because repeatedly filling
The problems such as unbalance stress for pressing from both sides and generating, loosening.
Further, it is equipped with inclined-plane (50) in the pair of positioning arm (5) first end and the gap (51) is made to be V
Shape socket.The V shapes socket can make the tapering (21) of mandril (2) preferably be oriented to insertion, and cooperation precision is high, and uniform force, together
When can reduce impact injury to tapering (21) conical surface.
Further, spring chuck (4) outer end is equipped with positioning shaft shoulder (41), and baffle ring (7) positioning sleeve is mounted in described
In positioning shaft shoulder (41), and the baffle ring (7) and the positioning plate (1) are detachable affixed.The baffle ring (7) is for preventing spring clip
Set (4) axially outwardly slides；Using detachable affixed, which is also convenient for taking for spring chuck (4)
Go out cleaning or replacement.
Further, the spring chuck (4) is equipped at least two axial groove (42) and each axial groove (42) is along its circumferential direction
It is uniformly distributed.Radial variable when the spring chuck (4) is elastic is circumferentially symmetrical, thus the trunnion be clamped the positioning Later Zhou Dynasty, one of the Five Dynasties to
Uniform force avoids crank throw location eccentricity.
Further, spring chuck (4) endoporus is by outer small interior big positioning endoporus (401) and deformation endoporus
(402) stepped hole constituted.The aperture of the deformation endoporus (402) is larger, it can be made to correspond to the spring chuck (4) of section after stress
It more easily deforms, being removed and inserted into when trunnion can be facilitated to unclamp.
Further, the axial groove (42) offers the width for making its notch widen in deformation endoporus (402) section
Slot (43).Increasing is deformed after can making spring chuck (4) stress.
Further, it is installed with positioning pressuring plate (15) on the positioning plate (1), is equipped with and is used on the inside of the positioning pressuring plate (15)
The groove (151) that positioning arm (5) first end is accommodated.The positioning pressuring plate (15) can prevent positioning arm (5) first end to
Outer loosening, work are safer.
Further, further include connection component (9)；The connection component (9) includes being sequentially connected from inside to outside mounted on machine
Spindle coupling disc (94), stroke limit set (93), clamp bottom board (92) and movable tray (91) on bed main shaft；The dump bottom
It is connected by positioning key (95) between disk (91) center and clamp bottom board (92) center；The mandril (2) and tapered sleeve (3)
Activity passes through the movable tray (91) and clamp bottom board (92) to be connect afterwards with the push plate (6) successively for inner end, the push plate
(6) shape is discoid and is installed in the stroke limit set (93)；Centre bore is offered on the spindle coupling disc (94)
(941), pull rod (96) is installed in the centre bore (941), pull rod (96) one end is affixed with the push plate (6) and its is another
End is affixed with telescoping cylinder (8) output end；It is also equipped with counterweight (97) on the clamp bottom board (92).
Further, symmetrically it is equipped with a pair of of positioning screw (14) in the pair of positioning arm (5) second end.This is to fixed
Positioning spacing size between position screw (14) is adjustable, is positioned to crank arm (102) width of different crank throws with meeting
It asks, practicability is stronger.
Beneficial effects of the present invention are as follows：
First, this can symmetrically position crank arm both sides positioning arm second end, make its stress balance；Meanwhile spring
Chuck inside contracts clamping, which coaxially positions with tapered sleeve, and axle center is not mutually eccentric, determines in addition, the trunnion is clamped
The position Later Zhou Dynasty, one of the Five Dynasties does not deviate to uniform force after crank throw can also positioned.
Second, which is inserted into using tapering, makes positioning arm second end uniform force and corner is consistent, while can reduce
To the impact injury of the tapering conical surface.
Third can increase the deformable amount of positioning endoporus, make since the spring clip puts on the axial groove equipped with outer narrow inner width
Endoporus opens larger after it is unclamped, and the gap of trunnion is facilitated to be inserted into, and can avoid phase mutual friction and influences positioning accuracy.
4th, the crank arm and trunnion synchronous clamping of crank throw or release can only be needed using a telescoping cylinder control
One-off, response quickly, work efficiency is high, and intervenes without human intervention, is conducive to automated production.
Description of the drawings
Fig. 1 is the structural schematic diagram of this crank throw.
Fig. 2 is a kind of clamp structure schematic diagram of this crank throw in the ideal situation.
Fig. 3 is structural schematic diagram when Fig. 2 fixtures are eccentric after clamping.
Fig. 4 is the semi-cutaway of the present invention.
Fig. 5 is the structural schematic diagram of this positioning plate.
Fig. 6 is the structural schematic diagram of this tapered sleeve.
Fig. 7 is the semi-cutaway of this spring chuck.
Fig. 8 is the stereogram of this spring chuck.
Fig. 9 is the structural schematic diagram of this positioning arm.
Figure 10 is the structural schematic diagram of this positioning pressuring plate.
Figure 11 is the structural schematic diagram of this movable tray.
Figure 12 is the structural schematic diagram of this clamp bottom board.
Figure 13 is the structural schematic diagram of this push plate.
Figure 14 is this stereogram to a kind of specific mounting means of positioning arm.
Figure 15 is the structural schematic diagram when present invention positions crank throw.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
Referring to Fig. 4, a kind of crank throw positioning fixture, including positioning plate 1, mandril 2, tapered sleeve 3, spring chuck 4, a pair of of positioning turn
Arm 5, push plate 6, baffle ring 7, telescoping cylinder 8 and connection component 9.
In conjunction with Fig. 4-5, wherein parallel on the positioning plate 1 to offer first positioning hole 11 and second location hole 12 and peace
Hole is filled, which is installed on 9 outside of the connection component.
Referring to Fig. 4, wherein 2 clearance fit of the mandril is installed in the second location hole 12, which sets
There is a tapering 21, inner end is pierced by after the second location hole 12 and 6 vertical connection of the push plate.
In conjunction with Fig. 4-6, wherein 3 clearance fit of the tapered sleeve is installed in first positioning hole 11；It is bullet in the tapered sleeve 3
Spring chuck pilot hole 31, outer end be internal taper hole 32, the other end be closure face 33, the closure face be equipped with for push plate 6
The connecting hole 34 of connection.
In conjunction with Fig. 4,7 and 8, wherein the spring chuck 4 is installed on can in the spring chuck pilot hole 31 of the tapered sleeve 3
It slides axially, and sets male cone (strobilus masculinus) 40 in 4 outer end wall of spring chuck and the internal taper hole 32 of the tapered sleeve 3 matches, taper b is
120-160 ° of range is best, and step-like positioning shaft shoulder 41 is additionally provided in 4 outermost end of spring chuck.
Referring to Fig. 7-8, the spring chuck 4 is equipped with 2-4 axial groove 42 and each axial groove 42 is circumferential uniform point along it
Cloth；Radial variable when the spring chuck 4 can be made elastic is circumferentially symmetrical, therefore the trunnion is clamped the positioning Later Zhou Dynasty, one of the Five Dynasties to stress
Uniformly；4 endoporus of spring chuck is by outer small interior big positioning endoporus 401 and deforms the stepped hole that endoporus 402 constituted.It should
The aperture for deforming endoporus 402 is larger, and the spring chuck 4 of its section can be made to be easier to deform after radial force, can facilitate trunnion
Being removed and inserted into when release；The axial groove 42 offers the sipes for making its notch widen on 402 sections of the endoporus of deformation
43；Increasing is deformed after 4 stress of spring chuck can further be made.
Referring to Fig. 4, in addition, 7 positioning sleeve of baffle ring is mounted in the positioning shaft shoulder 41, and the baffle ring 7 and the positioning plate 1
It is affixed by screw；The baffle ring 7 is for preventing spring chuck 4 from axially outwardly sliding；Affixed using screw, the baffle ring 7 is detachable
It is convenient, it is also convenient for the taking-up cleaning of the spring chuck 4 or replaces.
Referring to Fig. 9 and 14, wherein middle part is equipped with hinge hole 503 on the positioning arm 5, and the positioning arm 5 is through shaft 13
It is hinged on 1 lateral surface of the positioning plate；5 first end 501 of positioning arm is located at close to 21 outside of the tapering of mandril 2, the
Two ends 502 are located at close to 4 outside of the spring chuck and the second end 502 is equipped with the tapped through hole towards 4 direction of spring chuck
504, in conjunction with Figure 15, it is equipped with positioning screw 14 in the tapped through hole 504, the positioning screw 14 screw thread on tapped through hole 504
Cooperation position is adjustable, to change the positioning end in positioning screw 14 and the spacing between the spring chuck 4, to meet to not
With the positioning requirements of 102 width of crank arm of crank throw, practicability is stronger.
In conjunction with Fig. 4,14 and 15, wherein 5 structure of the pair of positioning arm is consistent and fixed along first positioning hole 11 and second
12 line of centres of position hole is symmetrical；And this is equipped with the gap 51 being inserted into for the tapering 21 between 5 first end of positioning arm,
This is symmetrically positioned in 5 second end of positioning arm the both sides of the spring chuck 4.
In conjunction with Fig. 9 and 14, it is equipped with inclined-plane 50 in 5 first end of the pair of positioning arm and the gap 51 is made to be V shapes
Socket；The V shapes socket can make the tapering 21 of mandril 2 preferably be oriented to insertion, and guiding accuracy is high, the both sides of the V shape sockets by
Power is uniform, also can avoid the impact injury to 21 conical surface of tapering.
Referring to Figure 10 and 4, positioning pressuring plate 15 is installed on the positioning plate 1, which, which is equipped with, uses
In the groove 151 accommodated simultaneously to 5 first end of positioning arm.The positioning pressuring plate 15 can prevent 5 first end 501 of positioning arm to
Outer loosening, while play and the more stable safety of movement can be reduced.
Referring to Fig. 4, wherein the connection component 9 includes being sequentially connected the main shaft on machine tool chief axis from inside to outside
Terminal pad 94, stroke limit set 93, clamp bottom board 92 and movable tray 91.
Referring to Fig. 4, the stroke limit set 93 is installed between spindle coupling disc 94 and clamp bottom board 92, the push plate 6
Shape is that discoid and clearance fit is covered in the stroke limit in 93, and the stroke limit covers 93 axial widths and is more than the push plate
6 thickness and there are certain axial sliding strokes, and make its push plate 6 can stroke limit cover 93 in back and forth limit sliding, due to this
2 inner end of mandril is vertical with the push plate 6 affixed, and connecting hole 34 is vertical with the push plate 6 solid by an intermediate bar 35 on the tapered sleeve 3
It connects, therefore can realize synchronous release and clamping shape by push plate 6 drives mandril 2 to be moved back and forth in setting stroke with tapered sleeve 3
State is precisely controlled.
Referring to Fig. 4,11-12, the relative inner between the movable tray 91 and clamp bottom board 92 is arranged with a pair of keys
Slot 922, the located key 95 of both coordinate positioning after being inserted into.Core of the keyway 922 radially across the movable tray 91；Cause
This described movable tray 91 and clamp bottom board 92 can be slided along 922 direction of keyway and radially adjustable its installation site, can basis
Spacing between crank link axle journal and trunnion is different and makees corresponding adjusting, this fixture can be made to meet different crank throws positioning processing
And it will not be eccentric after positioning.Establishing is set there are two bar shaped mounting hole 912 on the movable tray 91 simultaneously, for coordinating along keyway
It is fixedly mounted when 922 directions are moved still unaffected.
Referring to Fig. 4,11-12, it is additionally provided on the movable tray 91 and is passed freely through for mandril 2 and 3 axial reciprocating of tapered sleeve
Two perforation 911, and it is logical that two the first bar shapeds being collinearly distributed along 922 direction of the keyway are offered on the clamp bottom board 92
Hole 921.After installation site of the movable tray 91 on 922 direction of keyway changes, the mandril 2 and tapered sleeve 3 are in dump bottom
It axially free can still be moved back and forth in disk 91.
Referring to Fig. 4 and 13, wherein 6 medial surface of the push plate is equipped with step-like and along 922 direction of keyway two Article 2
Shape through-hole 61 is separately installed in this two the second strip through-holes 61 for two with intermediate bar 35 and the mating connection of mandril 2
The linkage section that nut 62, the intermediate bar 35 and mandril 2 are inserted into 61 aperture of the second strip through-hole be clearance fit and
It can be free to slide in two the second strip through-holes 61 along 922 direction of keyway.Therefore movable tray 91 can be coordinated along keyway
When 922 directions are adjusted, the intermediate bar 35 and mandril 2 can be also adjusted in synchronism.
Referring to Fig. 4, wherein the spindle coupling disc 94 offers centre bore 941, the installation of 941 internal clearance of the centre bore
There is pull rod 96,96 one end of pull rod is affixed with the push plate 6 and its other end and 8 output end of telescoping cylinder are affixed；The fixture bottom
The counterweight 97 for adjustment is also equipped on plate 92.
Referring to Fig. 4, wherein the telescoping cylinder 8 is used to provide reciprocating power for push plate 6, to realize automatic impaction or release,
Cylinder or hydraulic cylinder specifically can be used.Due to mandril 2 with tapered sleeve 3 with the push plate 6 it is affixed, which can drive top
The pine synchronous with tapered sleeve 3 of bar 2 moves back, i.e., rapidly to the positioning and clamping synchronous with the realization of trunnion 100 of crank arm 102, response speed
Soon, it can exponentially save the time, and labor intensity can be reduced；And the unbalance stress generated by multiple clamping has been can avoid,
The problems such as loosening.
Referring to Fig. 4, when in use, due to mandril 2 with tapered sleeve 3 with the push plate 6 it is affixed, by telescoping cylinder 8 be push plate 6
Outside power is provided, which can drive the extrapolation synchronous with tapered sleeve 3 of mandril 2；Wherein the tapering 21 of the mandril 2 is inserted into is somebody's turn to do outward
It, can be by this to the open-top separation of 5 first end of positioning arm, and on positioning plate 1 behind gap 51 between 5 first end of positioning arm
Lever rotation so that this it is close to each other to 5 second end of positioning arm and by the crank arm of crank throw 102 symmetrically positioning and balance clamp
Tightly；Meanwhile the tapered sleeve 3 slides axially towards the cooperation of 4 male cone (strobilus masculinus) of spring chuck, is radially inside contracted with pressuring spring chuck 4, can incite somebody to action
Trunnion coaxially positioning and the circumferential uniformly clamping being inserted into it.Due to this to positioning arm 5 along first positioning hole 11 and second
12 line of centres of location hole is symmetrical；And the tapering 21 of the mandril 2 is circumferential symmetrical, therefore this is to 5 first end of positioning arm
It is symmetrical to separate, while making also can symmetrically position clamping to 5 second end of positioning arm, and symmetrically positioned with 4 both sides of spring chuck,
Its center line can be made to be consistent and will not deviate, to achieve the purpose that realize precise positioning to crank throw.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of crank throw positioning fixture, it is characterised in that：Including positioning plate (1), mandril (2), tapered sleeve (3), spring chuck (4) and
A pair of of positioning arm (5)；It is parallel on the positioning plate (1) to offer first positioning hole (11) and second location hole (12)；The cone
Set (3) is installed in first positioning hole (11)；The mandril (2) is installed in the second location hole (12)；The spring clip
Set (4) is installed in the tapered sleeve (3) and spring chuck (4) male cone (strobilus masculinus) matches with the tapered sleeve (3) internal taper hole；The bullet
It is provided with baffle ring (7) on the outside of spring chuck (4)；This is to positioning arm (5) along first positioning hole (11) and second location hole (12)
Heart line is symmetrical and its middle part is articulated on the positioning plate (1) lateral surface；Mandril (2) outer end is equipped with tapering (21)
And this is equipped with the gap (51) being inserted into for the tapering (21) between positioning arm (5) first end, this is to positioning arm (5) the
Two ends are located at the both sides of the spring chuck (4).
2. a kind of crank throw positioning fixture as described in claim 1, it is characterised in that：Positioning plate (1) the inside parallel setting
Equipped with push plate (6), the mandril (2) is affixed with the push plate (6) with tapered sleeve (3), and the push plate (6) connects with a telescoping cylinder (8)
It connects.
3. a kind of crank throw positioning fixture as described in claim 1, it is characterised in that：The pair of positioning arm (5) first end
On be equipped with inclined-plane (50) and make the gap (51) be V shape sockets.
4. a kind of crank throw positioning fixture as described in claim 1, it is characterised in that：Spring chuck (4) outer end is equipped with fixed
The position shaft shoulder (41), baffle ring (7) positioning sleeve is in the positioning shaft shoulder (41), and the baffle ring (7) can with the positioning plate (1)
Detachable is affixed.
5. a kind of crank throw positioning fixture as described in any one of claim 1-4, it is characterised in that：The spring chuck (4)
It is equipped at least two axial groove (42) and each axial groove (42) is uniformly distributed along its circumferential direction.
6. a kind of crank throw positioning fixture as claimed in claim 5, it is characterised in that：Spring chuck (4) endoporus is by outer
The stepped hole that small interior big positioning 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：The axial groove (42) is in the deformation
The sipes (43) for making its notch widen is offered in hole (402) section.
8. a kind of crank throw positioning fixture as described in claim 1, it is characterised in that：It is installed with positioning on the positioning plate (1)
Pressing plate (15), the positioning pressuring plate (15) inside are equipped with for the groove (151) accommodated to positioning arm (5) first end.
9. a kind of crank throw positioning fixture as claimed in claim 2, it is characterised in that：Further include connection component (9)；The connection group
Part (9) includes the spindle coupling disc (94), stroke limit set (93), fixture being sequentially connected from inside to outside on machine tool chief axis
Bottom plate (92) and movable tray (91)；Pass through positioning key between movable tray (91) center and clamp bottom board (92) center
(95) it is connected；Activity passes through the movable tray (91) and fixture bottom successively for the inner end of the mandril (2) and tapered sleeve (3)
Plate (92) is connect with the push plate (6) afterwards, and push plate (6) shape is discoid and is installed on the stroke limit set (93)
It is interior；Centre bore (941) is offered on the spindle coupling disc (94), and pull rod (96), the drawing are installed in the centre bore (941)
Bar (96) one end is affixed with the push plate (6) and its other end and telescoping cylinder (8) output end are affixed；On the clamp bottom board (92)
It is also equipped with counterweight (97).
10. a kind of crank throw positioning fixture as described in any one of claim 1-4, it is characterised in that：The pair of positioning turns
It is symmetrically equipped with a pair of of positioning screw (14) in arm (5) second end.
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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| Publication Number | Publication Date |
|---|---|
| CN106112042A CN106112042A (en) | 2016-11-16 |
| CN106112042B true 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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| CN106112042A (en) | 2016-11-16 |
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