CN206316817U - A kind of crankshaft eccentric clamping device - Google Patents
A kind of crankshaft eccentric clamping device Download PDFInfo
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- CN206316817U CN206316817U CN201621358469.3U CN201621358469U CN206316817U CN 206316817 U CN206316817 U CN 206316817U CN 201621358469 U CN201621358469 U CN 201621358469U CN 206316817 U CN206316817 U CN 206316817U
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Abstract
The utility model discloses a kind of crankshaft eccentric clamping device, it is characterised in that：Including spindle coupling disc, clamp bottom board, cylinder sleeve, piston, resilient sleeve and circumferential butt；The clamp bottom board is eccentrically mounted on the spindle coupling disc lateral surface；The clamp bottom board lateral surface center is provided with round platform, the cylinder sleeve provided with the stepped hole that inboard aperture is big and apertura lateralis is small, and cylinder sleeve inner side aperture is tightly connected with the round platform, and air admission hole and venthole are offered on the outer wall of cylinder jachet；The piston outer wall is provided with Step Shaft；The Step Shaft and the stepped hole fitted seal；The piston outer face is further opened with blind hole, and the resilient sleeve medial extremity is located in the blind hole；The resilient sleeve outboard end is provided with deformation tapering；The circumferential butt lid is on the cylinder sleeve outer face.Utility model can make the automatic eccentric clamping of bent axle and positioning precision is high, can improve product quality and qualification rate.
Description
Technical field
The utility model is related to a kind of Crankshaft Machining technical field, more particularly to a kind of crankshaft eccentric clamping device.
Background technology
Bent axle, is used as one of core part of engine.Reference can be made to Fig. 1, bent axle 10 has two significant points：Trunnion
100 and connecting rod neck 200, it is set for the eccentric between the trunnion 100 and connecting rod neck 200, its eccentric throw is a.Due to can not be in machine
Directly positioning processing on bed main shaft, thus bent axle in processing (such as outer to grind connecting rod neck or car owner's axle journal or tapping), it is necessary to ask
A kind of special fixture is designed, to solve eccentricity issues.
Utility model content
In view of drawbacks described above in the prior art, the utility model provides a kind of crankshaft eccentric clamping device, can be automatically inclined
The heart is clamped and positioning precision is high.
To achieve the above object, the utility model provides a kind of crankshaft eccentric clamping device, it is characterised in that：Including master
Axle terminal pad (1), clamp bottom board (2), cylinder sleeve (3), piston (4), resilient sleeve (5) and circumferential butt (6)；The clamp bottom board
(2) it is eccentrically mounted on spindle coupling disc (1) lateral surface；Clamp bottom board (2) the lateral surface center is provided with round platform (21),
Provided with the stepped hole (31) that inboard aperture is big and apertura lateralis is small in the cylinder sleeve (3), aperture and the round platform (21) on the inside of the cylinder sleeve (3)
It is tightly connected, the air admission hole (301) and venthole (302) for each leading into its inboard aperture two ends is offered on cylinder sleeve (3) outer wall；
Piston (4) outer wall is provided with the Step Shaft (41) that inner shafts are big and outboard shafts are small；The Step Shaft (41) and the stepped hole
(31) fitted seal；Piston (4) outer face is further opened with blind hole (42), and resilient sleeve (5) medial extremity is located at described blind
In hole (42)；Resilient sleeve (5) outboard end is provided with deformation tapering (51)；It is provided with blind hole (42) aperture and deformation tapering
(51) taper hole (421) matched；Circumferential butt (6) lid is on the cylinder sleeve (3) outer face.
Further, spindle coupling disc (1) lateral surface offers the first keyway (11) and two along its center and ranked first
Screwed hole (12), this two ranked first the both sides that screwed hole (12) is symmetrically distributed in first keyway (11).
Further, clamp bottom board (2) lateral surface offers the second keyway (22) along its center and two bar shapeds connect
Connect hole (23)；Second keyway (22) and the first keyway (11) are connected by positioning key (201)；Described two bar shapeds connect
Connect the both sides that hole (23) is symmetrically distributed in second keyway (22).
Further, the first sealing ring annular groove (211) is offered on the round platform (21)；The round platform (21) and the cylinder
The first sealing ring (212) is installed between set (3).
Further, opened up on the clamp bottom board (2) on multiple cylinder sleeve connecting holes (24), cylinder sleeve (3) inner face
Open up and one-to-one multiple second screwed holes (32) of each cylinder sleeve connecting hole (24).
Further, multiple 3rd screwed holes (33) are opened up on cylinder sleeve (3) outer face, the circumferential butt (6) is opened
If with one-to-one multiple 3rd connecting holes (61) of each 3rd screwed hole (33).
Further, the spindle coupling disc (1) is provided with regulating block (7), and the regulating block (7) is offered and described first
Keyway (11) groove is to parallel regulation through hole (71)；Described regulation through hole (71) position pair is offered on the clamp bottom board (2)
Adjusting screw (8) and adjusting screw (8) thread rod part are installed in the regulation screwed hole (25) answered, the regulation through hole (71)
It is threadedly coupled with the regulation screwed hole (25).
Further, the second sealing ring annular groove (411), the piston (4) and institute are offered on piston (4) inner shafts
State and the second sealing ring (412) is installed between cylinder sleeve (3).
The beneficial effects of the utility model are：
Firstth, because the clamp bottom board can vertically adjust its eccentric throw height between spindle coupling disc up and down along positioning key
Degree, the positioning that can meet the different eccentric throw requirements of bent axle is clamped, and versatility is good；
Secondth, due to two bar shaped connecting holes settings on clamp bottom board, vertically different height can be achieved solid by screw
On the fixed spindle coupling disc, it is to avoid axial play；The other adjusting screw both meets radiai adjustment, while also avoiding its fixture bottom
Plate radially loosens；
3rd, the cylinder sleeve of this fixture and piston integrated installation can both reduce overall dimensions on the clamp bottom board, and structure is tight
Gather, location and installation is more convenient in addition on machine tool chief axis；
4th, this clamping uses aerodynamic response, quick with reaction, economical environment-protective, due to Automatic-clamping, during with auxiliary
Between it is short, production efficiency and manufacturing cost can be improved；
5th, clamped using the deformation of resilient sleeve, deform uniformity during due to circumferential inside contracting, it can be ensured that same during clamping
The requirement of axle degree, makes eccentric throw and bent axle have uniformity, positioning precision is high, can improve product quality and qualification rate.
Brief description of the drawings
Fig. 1 is profile of the present utility model.
Fig. 2 is right view of the present utility model.
Fig. 3 is the stereogram of spindle coupling disc.
Fig. 4 is the profile of clamp bottom board.
Fig. 5 is the stereogram of clamp bottom board.
Fig. 6 is the profile of cylinder sleeve.
Fig. 7 is the stereogram in one direction of cylinder sleeve.
Fig. 8 is the stereogram in another direction of cylinder sleeve.
Fig. 9 is the profile of piston.
Figure 10 is the stereogram of piston.
Figure 11 is the profile of resilient sleeve.
Figure 12 is the stereogram of resilient sleeve.
Figure 13 is the profile of circumferential butt.
Figure 14 is the stereogram of circumferential butt.
Figure 15 is the stereogram of regulating block.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Referring to Fig. 1-15, a kind of crankshaft eccentric clamping device, including spindle coupling disc 1, clamp bottom board 2, cylinder sleeve 3, piston
4th, resilient sleeve 5, circumferential butt 6 and regulating block 7.It is on the left side main shaft of lathe in this Fig. 1.
Inner side and outer side direction is to define relative to machine tool chief axis installation site in the present embodiment.
Wherein, the lateral surface of spindle coupling disc 1 offers the first keyway 11 and two along its center and ranked first screwed hole 12,
This two ranked first the both sides that screwed hole 12 is symmetrically distributed in first keyway 11；Specifically the direction of first keyway 11 can appoint
Meaning, as long as by its center.The first keyway of this in the present embodiment 11 is vertically arranged.
Wherein, the lateral surface of clamp bottom board 2 offers the second keyway 22 and two bar shaped connecting holes 23 along its center；Institute
State the second keyway 22 and the first keyway 11 is connected by positioning key 201；Described two bar shaped connecting holes 23 are symmetrically distributed in
The both sides of second keyway 22.The second keyway of this in the present embodiment 22 is vertically arranged.During installation, the clamp bottom board 2 is eccentric
Ground is arranged on the lateral surface of spindle coupling disc 1, and its eccentric distance is that a is consistent with eccentricity of crankshaft to be clamped.
In addition, regulating block is offered on the spindle coupling disc 1 installs screwed hole 13, the regulating block 7 is fixedly mounted on this
On spindle coupling disc 1 and directly over the clamp bottom board 2, the regulating block 7 is offered with the groove of the first keyway 11 to flat
Capable regulation through hole 71；The corresponding regulation screwed hole 25 in regulation through hole 71 position is offered on the clamp bottom board 2, it is described
Adjusting screw 8 is installed in regulation through hole 71 and the thread rod part of adjusting screw 8 is threadedly coupled with the regulation screwed hole 25.
Therefore, the clamp bottom board 2 can adjust its eccentric throw between spindle coupling disc 1 up and down along positioning key 201 is vertical
Highly；Two bar shaped connecting holes 23 are set on the clamp bottom board 2, and vertically different height can be achieved and fixes the main shaft by screw
In terminal pad 1, it is to avoid axial play；The other adjusting screw 8 both meets vertical adjustment, while also avoiding its clamp bottom board 2 from erecting
To loosening.
Wherein, the lateral surface center of clamp bottom board 2 is provided with round platform 21, the round platform 21 and offers the first sealing ring
Groove 211；The inner side aperture of cylinder sleeve 3 is tightly connected with the round platform 21, the first sealing ring annular groove 211 and institute on the round platform 21
State and the first sealing ring 212 is installed between cylinder sleeve 3.
Wherein, in the cylinder sleeve 3 provided with the stepped hole 31 that inboard aperture is big and apertura lateralis is small, offered on the outer wall of cylinder sleeve 3 point
The air admission hole 301 and venthole 302 at its inboard aperture two ends are not passed through；The outer wall of piston 4 is big and outboard shafts are small provided with inner shafts
Step Shaft 41；The Step Shaft 41 and the fitted seal of stepped hole 31；The inner shafts of Step Shaft 41 have one in inboard aperture
Determine movement travel to promote the piston 4 to move back and forth.
In addition, the outer face of piston 4 is further opened with blind hole 42, the medial extremity of resilient sleeve 5 is located in the blind hole 42；
The outboard end of resilient sleeve 5 is provided with deformation tapering 51；The taper hole matched with deformation tapering 51 is provided with the aperture of blind hole 42
421；It is used to the positioning of main bearing journal 100 on the outside of the endoporus of resilient sleeve 5 clamp, strip is offered on the outer wall of resilient sleeve 5
Groove 52 is deformed, strip deformation groove 52 is a plurality of and is uniformly arranged along its circumference, the circumferential elastomeric radial of the resilient sleeve 5
Unanimously, it can be ensured that clamp the axiality requirement at center and the center of resilient sleeve 5, main bearing journal 100 is made to clamp axle center each time
Can precise positioning.
In addition, opening up multiple cylinder sleeve connecting holes 24 on the clamp bottom board 2, opened up and each cylinder on the inner face of cylinder sleeve 3
Cover one-to-one multiple second screwed holes 32 of connecting hole 24.The cylinder sleeve 3 is fixed by screws on the clamp bottom board 2, can
Air-tightness is improved, to bear more atmospheric pressure.
In addition, opening up multiple 3rd screwed holes 33 on the outer face of cylinder sleeve 3, the circumferential butt 6 is opened up and each 3rd
One-to-one multiple 3rd connecting holes 61 of screwed hole 33.The outer face of cylinder sleeve 3 is provided with positioning step 34, the circumferential butt 6
Endoporus is step cap bore 62, and the lid of circumferential butt 6 is limited in described on the outer face of cylinder sleeve 3 and by the resilient sleeve 5
In blind hole 42.
In addition, offer the second sealing ring annular groove 411 on the inner shafts of piston 4, the piston 4 and the cylinder sleeve 3 it
Between the second sealing ring 412 is installed.The piston 4 is sealed with the inboard aperture of cylinder sleeve 3 through the second sealing ring 412, is coordinated more accurate, can be carried
High-air-tightness, to bear more atmospheric pressure.
Referring to Fig. 1-15, in use, the air admission hole 301 and venthole 302 on the cylinder sleeve 3 connect air-channel system company respectively
Connect, when when being high pressure in the air admission hole 301 and in venthole 302 being low pressure, it will the pneumatic promotion piston 4 is in the cylinder sleeve
3 move axially from inside to outside, the taper hole 421 in piston 4 can be made to extrude the deformation tapering 51 in resilient sleeve 5, due to the endoporus of resilient sleeve 5
To contract, internal diameter diminishes wall, it is achieved that positioning fast automatic to the main bearing journal 100 in it is clamped；Unclamping
When, when contrast in the air admission hole 301 is low pressure and during 302 inner high voltage of venthole, it will the pneumatic promotion piston 4 exists
Axially inwardly moved in the cylinder sleeve 3, the taper hole 421 in piston 4 can be made to depart from the deformation tapering 51 in resilient sleeve 5, due to bullet
Property 5 inner hole walls of set expand outwardly and internal diameter becomes big, unclamped it is achieved that fast automatic to the main bearing journal 100 in it, side
Just bent axle 10 takes out.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member just can be with without creative work.' many modifications and variations are made according to design of the present utility model.Therefore, all this technologies
Technical staff passes through logic analysis, reasoning or limited on the basis of existing technology according to design of the present utility model in field
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (8)
1. a kind of crankshaft eccentric clamping device, it is characterised in that：Including spindle coupling disc (1), clamp bottom board (2), cylinder sleeve (3),
Piston (4), resilient sleeve (5) and circumferential butt (6)；The clamp bottom board (2) is eccentrically mounted on the outside of the spindle coupling disc (1)
On face；Clamp bottom board (2) the lateral surface center is provided with round platform (21), big and apertura lateralis is small provided with inboard aperture in the cylinder sleeve (3)
Stepped hole (31), aperture is tightly connected with the round platform (21) on the inside of the cylinder sleeve (3), is offered on cylinder sleeve (3) outer wall point
The air admission hole (301) and venthole (302) at its inboard aperture two ends are not passed through；Piston (4) outer wall is provided with inner shafts are big and outside
The small Step Shaft of axle (41)；The Step Shaft (41) and the stepped hole (31) fitted seal；Also open piston (4) outer face
Provided with blind hole (42), resilient sleeve (5) medial extremity is located in the blind hole (42)；Resilient sleeve (5) outboard end is provided with change
Shape tapering (51)；The taper hole (421) matched with deformation tapering (51) is provided with blind hole (42) aperture；The circumferential butt
(6) lid is on the cylinder sleeve (3) outer face.
2. a kind of crankshaft eccentric clamping device as claimed in claim 1, it is characterised in that：On the outside of the spindle coupling disc (1)
Mian Yanqi centers offer the first keyway (11) and two and ranked first screwed hole (12), and two to ranked first screwed hole (12) symmetrical for this
In the both sides of first keyway (11).
3. a kind of crankshaft eccentric clamping device as claimed in claim 2, it is characterised in that：Clamp bottom board (2) lateral surface
The second keyway (22) and two bar shaped connecting holes (23) are offered along its center；Second keyway (22) and the first keyway (11)
It is connected by positioning key (201)；Described two bar shaped connecting holes (23) are symmetrically distributed in the both sides of second keyway (22).
4. a kind of crankshaft eccentric clamping device as claimed in claim 1, it is characterised in that：Is offered on the round platform (21)
One sealing ring annular groove (211)；First sealing ring (212) is installed between the round platform (21) and the cylinder sleeve (3).
5. a kind of crankshaft eccentric clamping device as claimed in claim 1, it is characterised in that：Opened up on the clamp bottom board (2)
Opened up on multiple cylinder sleeve connecting holes (24), cylinder sleeve (3) inner face and each cylinder sleeve connecting hole (24) one-to-one multiple the
Two screwed holes (32).
6. a kind of crankshaft eccentric clamping device as claimed in claim 1, it is characterised in that：Opened on cylinder sleeve (3) outer face
If multiple 3rd screwed holes (33), the circumferential butt (6) opens up and each 3rd screwed hole (33) one-to-one multiple three
Connecting hole (61).
7. a kind of crankshaft eccentric clamping device as claimed in claim 2 or claim 3, it is characterised in that：Spindle coupling disc (1) peace
Equipped with regulating block (7), the regulating block (7) is offered with the first keyway (11) groove to parallel regulation through hole (71)；It is described
The corresponding regulation screwed hole (25) in described regulation through hole (71) position, the regulation through hole (71) are offered on clamp bottom board (2)
Adjusting screw (8) is inside installed and adjusting screw (8) thread rod part is threadedly coupled with the regulation screwed hole (25).
8. a kind of crankshaft eccentric clamping device as claimed in claim 1, it is characterised in that：Opened on piston (4) inner shafts
Provided with the second sealing ring annular groove (411), the second sealing ring (412) is installed between the piston (4) and the cylinder sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358469.3U CN206316817U (en) | 2016-12-12 | 2016-12-12 | A kind of crankshaft eccentric clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621358469.3U CN206316817U (en) | 2016-12-12 | 2016-12-12 | A kind of crankshaft eccentric clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316817U true CN206316817U (en) | 2017-07-11 |
Family
ID=59267534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621358469.3U Active CN206316817U (en) | 2016-12-12 | 2016-12-12 | A kind of crankshaft eccentric clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206316817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907901A (en) * | 2018-06-26 | 2018-11-30 | 中国船舶重工集团公司第七0七研究所 | A kind of precise grinding process and Special Eccentric frock clamp of crank axle off-centre operation |
| CN111230551A (en) * | 2020-01-22 | 2020-06-05 | 南京信息职业技术学院 | Special-shaped lever part turning clamp |
-
2016
- 2016-12-12 CN CN201621358469.3U patent/CN206316817U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907901A (en) * | 2018-06-26 | 2018-11-30 | 中国船舶重工集团公司第七0七研究所 | A kind of precise grinding process and Special Eccentric frock clamp of crank axle off-centre operation |
| CN111230551A (en) * | 2020-01-22 | 2020-06-05 | 南京信息职业技术学院 | Special-shaped lever part turning clamp |
| CN111230551B (en) * | 2020-01-22 | 2021-07-20 | 南京信息职业技术学院 | Special-shaped lever part turning clamp |
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