CN208584215U - A kind of engine cylinder body wedge shape centralizer and positioning device - Google Patents
A kind of engine cylinder body wedge shape centralizer and positioning device Download PDFInfo
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- CN208584215U CN208584215U CN201820280079.1U CN201820280079U CN208584215U CN 208584215 U CN208584215 U CN 208584215U CN 201820280079 U CN201820280079 U CN 201820280079U CN 208584215 U CN208584215 U CN 208584215U
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- guide sleeve
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Abstract
The utility model relates to a kind of engine cylinder body wedge shape centralizers, including the guide sleeve with main pilot hole, the positioning mechanism with guide sleeve mating connection, the positioning mechanism includes three or more positioning sliding clamps and the sliding parts with each positioning sliding clamp transmission connection；Positioning sliding clamp is radially set in the positioning guide hole of guide sleeve side, and sliding part is set in the main pilot hole of guide sleeve, and the axial direction of each positioning guide hole is in and dominates into the axially vertical same plane in hole；The tail portion of each positioning sliding clamp corresponds mating connection, axially inclined setting of the dovetail groove relative to main pilot hole with a plurality of dovetail groove on sliding part is set to, and the tilt angle of each dovetail groove is consistent；The guide sleeve has and dominates the datum end face axially vertical to hole.It is self-centering that this programme can be realized cylinder jacket, eliminates error to greatest extent, ensure that postorder cylinder jacket allowance for finish is uniform, avoid generating unilateral.
Description
Technical field
The present invention relates to a kind of engine cylinder body wedge shape centralizers, belong to conveying equipment technical field.
Background technique
The stage is produced and processed in automobile engine cylinder-body, some processes need fixed using cylinder block bottom surface and cylinder sets of holes
Position processes smart benchmark.Cylinder jacket is inlaid into cylinder body when being casting, and dimensional accuracy and position precision have certain mistake
Difference not can guarantee consistency, and just to positioning fixture, more stringent requirements are proposed for this.Existing positioning method is generally by three
Cylinder-bore limits the freedom degree of cylinder body respectively, and each cylinder holes uses two anchor points.This positioning method can not eliminate cylinder
Cast setting bring location error is covered, surplus is uneven when may cause the finishing of postorder cylinder sleeve, generates unilateral or even can not be at
Circle, seriously affects production qualification rate.
As shown in Figure 1, by 1#, the B1-B4 anchor point of 3# cylinder jacket determines that B benchmark, C1, C2 of 2# cylinder jacket determine
C benchmark, theoretically this locating scheme is correctly feasible.But in reality production, due to the precision problem of blank, cylinder liner diameter and
Position precision not can guarantee unanimously.In this case, above-mentioned two-point locating mode can not really determine cylinder sets of holes
Center not can guarantee B reference consistency further, and positioning will be uncontrollable at this time.
Summary of the invention
The purpose of the present invention is to provide a kind of engine cylinder body wedge shape centralizers, the specific scheme is that
A kind of engine cylinder body wedge shape centralizer, including with main pilot hole guide sleeve, with guide sleeve cooperate
The positioning mechanism of connection, the positioning mechanism include three or more positioning sliding clamps and are driven company with each positioning sliding clamp
The sliding part connect；Positioning sliding clamp is radially set in the positioning guide hole of guide sleeve side, and sliding part is set to guiding and slides
In the main pilot hole of set, the axial direction of each positioning guide hole is in and dominates into the axially vertical same plane in hole；It is each fixed
The tail portion of position sliding clamp corresponds mating connection with a plurality of dovetail groove on sliding part is set to, and the dovetail groove is relative to leading
Axially inclined setting to hole, and the tilt angle of each dovetail groove is consistent；The guide sleeve has and dominates to hole axial direction
Vertical datum end face.
Further, the sliding part includes the slide and slide pull rod being flexibly connected, and slide and positioning sliding clamp pass
Dynamic connection, slide pull rod with power mechanism for connecting；The main pilot hole includes preceding guide section and rear guide section, and slide is with before
Guide section is slidably connected, and slide pull rod is slidably connected with rear guide section.
Further, the front end of the guide sleeve is equipped with sealing cover, and the positioning sliding clamp and slide pull rod are all provided with
There is sealing ring.
Further, there are three the positioning sliding clamps, three positioning sliding clamps are equal along the excircle of guide sleeve
Even distribution.
Invention further provides a kind of engine cylinder body positioning device, including clamp body, clamp body is equipped with and starts
Machine cylinder body upper cylinder covers corresponding two location holes, and positioning hole is provided with engine cylinder body wedge shape centering folder as described above
Tool, centralizer are cooperatively connected by the upper surface of datum end face and clamp body, and the sliding part lower end of centralizer is through calmly
Position hole is simultaneously connected with power mechanism；Clamp body upper surface is additionally provided with the multiple positioning convex platforms for being used to support engine cylinder body, multiple
The top of positioning convex platform be in it is parallel with centralizer datum end face it is conplane in.
Beneficial point of the invention is: this programme is using wedge-shaped positioning principle, and it is self-centering to can be realized cylinder jacket, maximum limit
The elimination error of degree ensure that postorder cylinder jacket allowance for finish is uniform, avoid generating unilateral.
Detailed description of the invention
Fig. 1 is the positioning schematic diagram of engine cylinder body in the prior art；
Fig. 2 is the structural schematic diagram of centralizer in embodiment 1；
Fig. 3 is the structural schematic diagram that sliding clamp is positioned in embodiment 1；
Fig. 4 is the structural schematic diagram of slide in embodiment 1；
Fig. 5 is the structural schematic diagram of fixed pedestal in embodiment 1；
Fig. 6 is the structural schematic diagram of engine cylinder body positioning device in embodiment 2；
Fig. 7 is the overlooking structure diagram of engine cylinder body positioning device in embodiment 2.
Specific embodiment
Embodiment 1
A kind of engine cylinder body wedge shape centralizer as shown in Fig. 2 to 5, including with main pilot hole guide sleeve,
With guide sleeve be cooperatively connected positioning mechanism, the positioning mechanism include three or more positioning sliding clamps 3 and with it is each fixed
The sliding part that position sliding clamp 3 is sequentially connected；Position the positioning guide hole that sliding clamp 3 is radially set to guide sleeve side
Interior, sliding part is set in the main pilot hole of guide sleeve, the axial direction of each positioning guide hole be in dominate it is axially vertical to hole
Same plane in；The tail portion of each positioning sliding clamp 3 connects with a plurality of one-to-one correspondence of dovetail groove 40 cooperation on sliding part is set to
It connects, axially inclined setting of the dovetail groove 40 relative to main pilot hole, and the tilt angle of each dovetail groove 40 is consistent；It is described
Guide sleeve has and dominates the datum end face axially vertical to hole.
In the present embodiment, guide sleeve includes fixed sleeves 2 and fixed pedestal 6, and the connection of 2 nose threads of fixed sleeves is useful
Three uniformly distributed positioning guide holes are equipped in the intermediate position of the drive end bearing bracket 1 of sealing, fixed sleeves 2, for positioning sliding clamp 3
Positioning and guiding, and design have sealing ring mounting groove.Fixed sleeves 2 are positioned by rear end step, and screw is connected and fixed on solid
Determine on pedestal 6, the lower end surface of fixed pedestal 6 is benchmark end face.
The sliding part includes the slide 4 and slide pull rod 5 being flexibly connected, and slide 4 and the positioning transmission of sliding clamp 3 connect
It connects, slide pull rod 5 with power mechanism for connecting；The design of positioning 3 rear end of sliding clamp has the dovetail boss 30 with angle.It is logical
The dovetail groove 40 crossed on dovetail boss and slide 4 cooperates.It is fixed that positioning 3 axle body of sliding clamp is installed on the guiding on fixed sleeves 2
In the hole of position.Under the action of slide 4, it is dynamic that positioning sliding clamp 3 carries out radial expansion in the guide-localization hole on fixed sleeves 2
Make.
It is uniformly distributed on 4 front end external diameter of slide that there are three the dovetail grooves 40 with angle.Dovetail groove size and angle are slided with positioning
Collet 3 matches, and the axial movement of slide 4 is made to be converted to the radial motion of positioning sliding clamp 3.Rear end design has T-type key, uses
It is connect in slide pull rod.
5 Front-end Design of slide pull rod has T-slot, connect with slide 4.Design has sealing ring on intermediate two sections of sliding axle journals
Mounting groove, for installing sealing ring 7.There is a threaded hole in rear end, for connecting hydraulic power mechanism.
Fixed pedestal 6 is the basic part of positioning device, and all elements are based on it and install and move.Top first step hole
And six uniformly distributed threaded holes are used for the positioning and installation of fixed sleeves 2.Second step hole and 4 clearance fit of slide, slide 4
It is axially moved wherein.Similarly, third, four stepped holes are slidably matched for slide pull rod 5.Bottom stage hole and six
A uniformly distributed threaded hole is for installing rear end cap 8.
Rear end cap 8 is fixed on fixed pedestal 6 by screw.Inner hole is that slide pull rod 5 provides guiding.Inner hole is equal with outer circle
Design has seal groove, for installing sealing ring.
Embodiment 2
Such as Fig. 6 to 7, a kind of engine cylinder body positioning device, including clamp body 9, clamp body 9 are equipped with and engine cylinder body 11
Upper cylinder covers corresponding two location holes 10, is provided with engine cylinder body wedge shape centralizer as described above in location hole 10,
Centralizer is cooperatively connected by the datum end face of fixed pedestal 6 and the upper surface of clamp body 9, the slide pull rod 5 of centralizer
Lower end is through location hole and is connected with power mechanism；9 upper surface of clamp body, which is additionally provided with, is used to support the more of engine cylinder body 11
A positioning convex platform 12, the top of multiple positioning convex platforms 12 be in it is parallel with centralizer datum end face it is conplane in.
Engine cylinder body 11 passes through bottom surface and two cylinder holes positioning.When two sets of centralizers spreading simultaneously, engine
Cylinder body 11 will realize centering and pre- clamping automatically.
Claims (5)
1. a kind of engine cylinder body wedge shape centralizer, including with main pilot hole guide sleeve, connect with guide sleeve cooperation
The positioning mechanism connect, it is characterised in that: the positioning mechanism includes three or more positioning sliding clamps and slides with each positioning
The sliding part of collet transmission connection；Positioning sliding clamp is radially set in the positioning guide hole of guide sleeve side, sliding part
In the main pilot hole of guide sleeve, the axial direction of each positioning guide hole is in and dominates the same plane axially vertical to hole
It is interior；The tail portion of each positioning sliding clamp corresponds mating connection, the dovetail groove with a plurality of dovetail groove on sliding part is set to
Relative to the axially inclined setting of main pilot hole, and the tilt angle of each dovetail groove is consistent；The guide sleeve has and master
The axially vertical datum end face of pilot hole.
2. engine cylinder body wedge shape centralizer according to claim 1, it is characterised in that: the sliding part includes activity
The slide and slide pull rod of connection, slide and positioning sliding clamp transmission connection, slide pull rod with power mechanism for connecting；Institute
Stating main pilot hole includes preceding guide section and rear guide section, and slide is slidably connected with preceding guide section, and slide pull rod and rear guide section are sliding
Dynamic connection.
3. engine cylinder body wedge shape centralizer according to claim 2, it is characterised in that: the front end of the guide sleeve
Equipped with sealing cover, the positioning sliding clamp and slide pull rod are equipped with sealing ring.
4. engine cylinder body wedge shape centralizer according to claim 3, it is characterised in that: the positioning sliding clamp has
Three, three positioning sliding clamps are uniformly distributed along the excircle of guide sleeve.
5. a kind of engine cylinder body positioning device, including clamp body, clamp body is equipped with corresponding with engine cylinder body upper cylinder set
Two location holes, it is characterised in that: positioning hole setting is fixed just like the described in any item engine cylinder body wedge shapes of claim 1 ~ 4
Heart fixture, centralizer are cooperatively connected by the upper surface of datum end face and clamp body, and the sliding part lower end of centralizer is run through
In location hole and it is connected with power mechanism；Clamp body upper surface is additionally provided with the multiple positioning convex platforms for being used to support engine cylinder body,
The top of multiple positioning convex platforms be in it is parallel with centralizer datum end face it is conplane in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820280079.1U CN208584215U (en) | 2018-02-28 | 2018-02-28 | A kind of engine cylinder body wedge shape centralizer and positioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820280079.1U CN208584215U (en) | 2018-02-28 | 2018-02-28 | A kind of engine cylinder body wedge shape centralizer and positioning device |
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| CN208584215U true CN208584215U (en) | 2019-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145493A (en) * | 2018-02-28 | 2018-06-12 | 瑞庆汽车发动机技术有限公司 | A kind of engine cylinder body wedge shape centralizer |
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2018
- 2018-02-28 CN CN201820280079.1U patent/CN208584215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145493A (en) * | 2018-02-28 | 2018-06-12 | 瑞庆汽车发动机技术有限公司 | A kind of engine cylinder body wedge shape centralizer |
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