CN207757235U - A kind of accurate tooling for processing valve pocket hole and a kind of valve pocket process equipment - Google Patents
A kind of accurate tooling for processing valve pocket hole and a kind of valve pocket process equipment Download PDFInfo
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- CN207757235U CN207757235U CN201721448154.2U CN201721448154U CN207757235U CN 207757235 U CN207757235 U CN 207757235U CN 201721448154 U CN201721448154 U CN 201721448154U CN 207757235 U CN207757235 U CN 207757235U
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- valve pocket
- positioning
- hole
- core axle
- bearing
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Abstract
The utility model discloses a kind of accurate toolings in processing valve pocket hole, locating turntable, bearing block and valve pocket positioning pipe are sequentially sleeved on positioning core axle from left to right, it is rotatably assorted connection by bearing between bearing block and positioning core axle, bearing block is equipped with location hole, locating turntable, which is equipped with, to be connected with location hole to realize multiple index holes of indexing positioning, valve pocket is located in valve pocket positioning pipe, the right end of positioning core axle is the multi-diameter shaft with positioning end face and column-shaped projection, the left end of valve pocket is sleeved on column-shaped projection and is pressed on the positioning end face of positioning core axle by positioning end cap and holding out against positioning bolt, valve pocket positioning pipe is equipped with multiple processing holes in valve pocket hole easy to process；All valve pocket holes are processed using same benchmark, and in rotary course, and the Circular Run-out Tolerance of valve pocket is not more than 0.001mm, therefore can ensure the Working position precision in each valve pocket hole, improves the qualification rate of valve pocket.The invention also discloses a kind of valve pocket process equipments of the accurate tooling including above-mentioned processing valve pocket hole.
Description
Technical field
The utility model is related to valve pocket processing technique fields, more particularly to a kind of accurate tooling in processing valve pocket hole.This
Outside, the utility model further relates to a kind of valve pocket process equipment of the accurate tooling including above-mentioned processing valve pocket hole.
Background technology
In Course Exercise in Machinery Elements Design with assembly, there are some to carry the sophisticated product part of one or more groups of square holes, such as valve
The position degree of set, every group of square hole is usually required no more than 0.002mm, and the dimensional tolerance of square hole is 0.02mm.It is existing to add
Work technology is generally proceeded in two phases：
First, by easy tooling, semifinishing square hole is carried out using Wire EDM (slow wire feeding equipment), it will be square
The position degree control in hole is no more than 0.005~0.010mm；
Then, it is 0.002mm by the position degree control of square hole then by manually carrying out lappingout processing to each group square hole.
Under normal conditions, using conventional above-mentioned processing method, even if very outstanding employee is selected to process this to operate
The scrappage of class precision component, the product parts manufactured is also up to about 50%.In addition, often processing a valve pocket, it is required to
It repositions, processing efficiency is low, and processing quality is unstable.
Therefore, on the basis of traditional Machine Components and Parts Design and mounting technology, a kind of novel design and assembly are invented
Excellent conventional machining method can be compared perfect high-quality money by technology with more advanced electric processing method
Source is integrated, and so as to stablize and expeditiously produce multi items, large batch of high-precision carries the production of multigroup square hole class
Product part, is very important.
Therefore how to ensure the Working position precision in valve pocket hole, improve the qualification rate of valve pocket, be those skilled in the art's mesh
The preceding technical issues that need to address.
Utility model content
The purpose of this utility model is to provide a kind of accurate tooling in processing valve pocket hole, can ensure the processing in valve pocket hole
Positional precision improves the qualification rate of valve pocket.It includes above-mentioned processing valve pocket hole that the another object of the utility model, which is to provide a kind of,
The valve pocket process equipment of accurate tooling.
In order to solve the above technical problems, the utility model provides a kind of accurate tooling in processing valve pocket hole, including positioning turns
Disk, positioning core axle, valve pocket positioning pipe position end cap, and for the bearing block on process equipment；
The locating turntable, the bearing block and the valve pocket positioning pipe are sequentially sleeved in the positioning core axle from left to right
On, the locating turntable is interference fitted with the positioning core axle and is fixedly connected by holding pin, the bearing block with it is described fixed
Bearing is installed between the mandrel of position and is rotatably assorted connection by the bearing, the bearing block is described fixed equipped with location hole
Position turntable is equipped with the annular centered on center axis and is uniformly distributed and for being connected with the location hole to realize point
Multiple index holes of positioning are spent, the index hole is connected with the location hole by movable latch；
The left end of the valve pocket positioning pipe is sleeved on the positioning core axle and is fixedly connected by Fixed latches, the valve pocket
It is located in the valve pocket positioning pipe, the right end of the positioning core axle is the multi-diameter shaft with positioning end face and column-shaped projection, described
The left end of valve pocket is sleeved on the column-shaped projection and offsets with the positioning end face, and it is fixed that the positioning end cap is socketed in the valve pocket
The right end of position pipe, and the right end of the positioning end cap is threadedly coupled the institute for being useful for the valve pocket being pressed on the positioning core axle
It states and holds out against positioning bolt on positioning end face, the right end of the valve pocket and described hold out against are equipped with gasket between positioning bolt, described
Valve pocket positioning pipe is equipped with the annular centered on center axis and is uniformly distributed and multiple processing in the valve pocket hole easy to process
Hole.
Preferably, clearance fit between the valve pocket and the column-shaped projection, between the valve pocket positioning pipe and the valve pocket
Gap coordinates, and the positioning end cap and the valve pocket clearance fit, the positioning end cap are threadedly coupled with the valve pocket positioning pipe.
Preferably, column-shaped projection position corresponding with the valve pocket hole is equipped with the ring centered on center axis
It is uniformly distributed and first relief hole in the valve pocket hole easy to process；The right end of the valve pocket is inserted into the center of the positioning end cap
Kong Zhong, positioning end cap position corresponding with the valve pocket hole be equipped with centered on center axis ring be uniformly distributed and
Second relief hole in the valve pocket hole easy to process.
Preferably, guide sleeve, the outer circle of the guide sleeve and the indexing are mounted in the index hole and the location hole
Hole and the location hole are interference fitted, the endoporus of the guide sleeve and the movable latch clearance fit.
Preferably, it is arranged side by side between the bearing block and the positioning core axle there are two the bearing, the bearing
Inner ring is interference fitted with the positioning core axle, and the outer ring of the bearing and the centre bore of the bearing block are interference fitted, two institutes
State and be equipped with limit backing plate between bearing, the limit backing plate is sleeved on the positioning core axle, and with the positioning core axle and described
The equal clearance fit of centre bore of bearing block, it is described limit backing plate left and right ends face respectively with the bearing positioned at its both sides
Outer ring fits, and the counterbore for avoiding the bearing inner race is equipped on the left and right ends face of the limit backing plate.
Preferably, the right end of the locating turntable is equipped with the boss to fit with the inner ring of the bearing.
Preferably, the positioning end face close to the root of the column-shaped projection be equipped with for ensure the valve pocket with it is described fixed
The recessing groove of position end face good fit.
Preferably, the end of the centre bore of the bearing block is the bellmouth for being oriented to for bearing installation；It is described
The right part of positioning core axle and the right part of the column-shaped projection are circular conical surface.
Preferably, the end of the Fixed latches, the movable latch and the holding pin is the circular cone for guiding
Face.
The utility model also provides a kind of valve pocket process equipment, includes the accurate tooling in processing valve pocket hole, the processing valve
The accurate tooling of sets of holes is specially the accurate tooling in the processing valve pocket hole described in above-mentioned any one.
The accurate tooling in processing valve pocket hole provided by the utility model, including the positioning of locating turntable, positioning core axle, valve pocket
Pipe positions end cap, and for the bearing block on process equipment；Locating turntable, bearing block and valve pocket positioning pipe are from a left side
It is sequentially sleeved on positioning core axle to the right side, locating turntable is interference fitted and is fixedly connected by holding pin, bearing block with positioning core axle
Bearing is installed between positioning core axle and is rotatably assorted by bearing and is connect, bearing block is equipped with location hole, on locating turntable
It is uniformly distributed and equipped with annular centered on center axis for being connected with location hole to realize the multiple of indexing positioning
Index hole, index hole and location hole are connected by movable latch；The left end of valve pocket positioning pipe and positioning core axle clearance fit and logical
It crosses Fixed latches to be fixedly connected, valve pocket is located in valve pocket positioning pipe, and the right end of positioning core axle is convex with positioning end face and cylindricality
The multi-diameter shaft risen, the left end of valve pocket are sleeved on column-shaped projection and offset with positioning end face, and positioning end cap is socketed in valve pocket positioning pipe
Right end, and position end cap right end be threadedly coupled be useful for by valve pocket be pressed on the positioning end face of positioning core axle holding out against calmly
Position bolt, the right end of valve pocket and hold out against and be equipped with gasket between positioning bolt, and valve pocket positioning pipe is equipped with is with center axis
Thimble shape is uniformly distributed and multiple processing holes in valve pocket hole easy to process.
When processing valve pocket hole using accurate tooling provided by the utility model, by positioning core axle, locating turntable, bearing block and
Valve pocket positioning pipe installs, and after being mounted in Wire EDM equipment by bearing block, then end cap and is held out against by positioning
Valve pocket is pressed on the positioning end face of positioning core axle by positioning bolt, is processed in same direction using Wire EDM equipment
Valve pocket hole after, remove connection location hole and corresponding index hole movable latch, positioning core axle, valve pocket, locating turntable etc. are pressed
It is required that rotating by a certain angle, then location hole and another group of index hole are connected by movable latch, then processed on other direction
Valve pocket hole, according to the quantity of valve pocket circumferential direction upper valve sets of holes, the rest may be inferred, the processing in all valve pocket holes is completed, due in process
The component of fixed valve pocket can be positioned after fixed axial line rotation as required, and all valve pocket holes are added using same benchmark
Work, and in rotary course, the Circular Run-out Tolerance of valve pocket is not more than 0.001mm, therefore can ensure the Working position in each valve pocket hole
Precision improves the qualification rate of valve pocket.In addition, when the valve pocket hole of processing different directions, without dismantling valve pocket, it is not necessarily to resetting,
The processing efficiency that valve pocket hole can be improved realizes the batch production of valve pocket.
Valve pocket process equipment provided by the utility model includes the accurate tooling in above-mentioned processing valve pocket hole, due to above-mentioned processing
The accurate tooling in valve pocket hole has above-mentioned technique effect, and above-mentioned valve pocket process equipment should also have same technique effect, herein
No longer it is discussed in detail.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of valve pocket；
Fig. 2 is that a kind of structure of specific implementation mode of the accurate tooling in processing valve pocket hole provided by the utility model is shown
It is intended to；
Fig. 3 is a kind of structural schematic diagram of specific implementation mode of locating turntable provided by the utility model；
Fig. 4 is the sectional view along A-A of Fig. 2；
Fig. 5 is a kind of structural schematic diagram of specific implementation mode of bearing block provided by the utility model；
Fig. 6 is the sectional view of Fig. 5；
Fig. 7 is a kind of structural schematic diagram of specific implementation mode of limit backing plate provided by the utility model；
Fig. 8 is a kind of structural schematic diagram of specific implementation mode of guide sleeve provided by the utility model；
Fig. 9 is bearing block provided by the utility model, bearing, the assembling schematic diagram for limiting backing plate and guide sleeve；
Figure 10 is a kind of structural schematic diagram of specific implementation mode of valve pocket positioning pipe provided by the utility model；
Figure 11 is the section B-B sectional view of Figure 10；
Figure 12 is a kind of structural schematic diagram of specific implementation mode of positioning core axle provided by the utility model；
Figure 13 is the K-K cross-sectional views of Figure 12；
Figure 14 is a kind of structural schematic diagram of specific implementation mode of holding pin provided by the utility model；
Figure 15 is a kind of structural schematic diagram of specific implementation mode of Fixed latches provided by the utility model；
Figure 16 is a kind of structural schematic diagram of specific implementation mode of movable latch provided by the utility model.
Specific implementation mode
The core of the utility model is to provide a kind of accurate tooling in processing valve pocket hole, can ensure the processing in valve pocket hole
Positional precision improves the qualification rate of valve pocket.It includes above-mentioned processing valve pocket hole that another core of the utility model, which is to provide a kind of,
The valve pocket process equipment of accurate tooling.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It please refers to Fig.1 and Fig. 2, Fig. 1 is a kind of structural schematic diagram of valve pocket；Fig. 2 is processing provided by the utility model
A kind of structural schematic diagram of specific implementation mode of the accurate tooling in valve pocket hole.
The accurate tooling in the processing valve pocket hole that specific embodiment of the present invention provides, including locating turntable 1, locating core
Axis 4, valve pocket positioning pipe 5 position end cap 6, and for the bearing block 2 on process equipment, locating turntable 1, bearing block 2
It is sequentially sleeved in from left to right on positioning core axle 4 with valve pocket positioning pipe 5, the centre bore Da1 of locating turntable 1 is outer with positioning core axle 4
Circle da is interference fitted and is fixedly connected by holding pin 13, bearing 8 is equipped between bearing block 2 and positioning core axle 4 and passes through axis
8 are held to be rotatably assorted connection；
Bearing block 2 is equipped with location hole D32, and locating turntable 1 is equipped with for being connected with location hole D32 to realize
Multiple index hole D31 of positioning are indexed, multiple index hole D31 annulars centered on locating turntable 1 by center axis are uniform
Distribution, index hole D31 and location hole D32 are connected by movable latch 12；
The left end of valve pocket positioning pipe 5 is sleeved on positioning core axle 4 and is fixedly connected by Fixed latches 11, and valve pocket 10 is located at valve
It covers in positioning pipe 5, the right end of positioning core axle 4 is the multi-diameter shaft with positioning end face C and column-shaped projection, the left end set of valve pocket 10
It offsets on column-shaped projection and with positioning end face C, positioning end cap 6 is socketed in the right end of valve pocket positioning pipe 5, and positions end cap 6
Right end, which is threaded with, holds out against positioning bolt 7, and the left part for holding out against positioning bolt 7 is against the right end of valve pocket 10, and valve pocket 10 is pressed
Tightly on the positioning end face C of positioning core axle 4, ensure that locating turntable 1, valve pocket 10, valve pocket positioning pipe 5 can be same with positioning core axle 4
Portion rotates；
In addition, multiple processing holes on valve pocket positioning pipe 5, multiple processing holes are on valve pocket positioning pipe 5 with center axis
Centered on annular be uniformly distributed, the number for processing hole is consistent with the quantity in every group of valve pocket hole, and resigning is played when processing valve pocket hole
Effect, while convenient for the practical fit-state of valve pocket 10 and positioning end face C when observation installation valve pocket 10.
Since valve pocket 10 is hollow, positioning bolt 7 is held out against for convenience, valve pocket 10 is pressed on positioning end face C, in valve pocket 10
Right end and hold out against and can be equipped with gasket 9 between positioning bolt 7, be specifically as follows steel plate washer 9 and aluminium backing 9, the thickness of gasket 9
The depth of parallelism in face is preferably no greater than 0.002mm；
In addition, guide sleeve 14 can be mounted in index hole D31 and location hole D32, outer circle d3 and the indexing of guide sleeve 14
Hole D31 and location hole D32 are interference fitted, and the endoporus D6 of guide sleeve 14 is with the outer circle d6 clearance fits of movable latch 12 with convenient
The plug of movable latch 12.
It is a kind of knot of specific implementation mode of locating turntable provided by the utility model to please refer to Fig.3 to Fig. 9, Fig. 3
Structure schematic diagram；Fig. 4 is the sectional view along A-A of Fig. 3；Fig. 5 is a kind of specific embodiment party of bearing block provided by the utility model
The structural schematic diagram of formula；Fig. 6 is the sectional view of Fig. 5；Fig. 7 is a kind of specific implementation of limit backing plate provided by the utility model
The structural schematic diagram of mode；Fig. 8 is a kind of structural schematic diagram of specific implementation mode of guide sleeve provided by the utility model；Figure
9 be bearing block provided by the utility model, bearing, the assembling schematic diagram for limiting backing plate and guide sleeve.
Wherein, the accurate tooling in the processing valve pocket hole that this practicality specific implementation mode provides, the centre bore of locating turntable 1
Da1 is identical as 8 endoporus Da4 sizes of bearing, and error is not more than 0.002mm, 1 centre bore Da1 of locating turntable and 4 outer circle of positioning core axle
The interference volume of da is preferably in 0.003mm between 0.004mm；Index hole D31 and the outer circle d3 of guide sleeve 14 are interference fitted, interference
Amount is preferably in 0.008mm between 0.012mm；Locating turntable 1 with that aperture can be equipped on positioning core axle 4 is identical and for inserting
The through-hole D4 of holding pin 13, and preferably exist for interference fit, interference volume between through-hole D4 and the outer circle d4 of holding pin 13
0.008mm is between 0.010mm, it is ensured that locating turntable 1 and the fixing-stable of positioning core axle 4 are reliable；In addition, locating turntable 1
Right end is preferably provided with the boss to fit with the inner ring of bearing 8, ensures that locating turntable 1 can only fit with the inner ring of bearing 8, with
Ensure that locating turntable 1 is kept for the when of rotating synchronously do not interfere with positioning core axle 4.
Bearing block 2 is fixed on process equipment, reference element when as processing, the bottom surface of bearing block 2 and one side point
Face J and reference plane Z on the basis of not, the cylindricity of 2 centre bore D1 of bearing block are preferably no greater than 0.001mm, 2 centre bore D1 of bearing block
Axial line pair two reference planes J and Z the depth of parallelism preferably no more than 0.001mm；Outside 2 centre bore D1 of bearing block and bearing 8
It is interference fitted between circle, interference volume is preferably in 0.008mm between 0.010mm；2 upper Positioning holes D32 of bearing block and index hole D31
Size it is identical, and the outer circle d3 of location hole D32 and guide sleeve 14 is interference fitted, interference volume preferably 0.008mm to 0.012mm it
Between；The end of 2 centre bore D1 of bearing block can be for bellmouth, and the oblique angle of bellmouth is X1, can be when installing bearing 8 from
Guiding role facilitates the installation of bearing 8.
In addition, to ensure assembly precision, it can be arranged side by side between bearing block 2 and positioning core axle 4 there are two bearing 8, two
The inner ring hole Da4 of a bearing 8 is interference fitted with 4 outer circle da of positioning core axle, the centre bore of the outer ring of bearing 8 with bearing block 2
D1 is interference fitted, and the inner ring hole Da4 sizes of two bearings 8 are identical, and error is not more than 0.001mm, 8 inner ring hole Da4's of two bearings
The depth of parallelism of axial line pair two reference planes J and Z are preferably no more than 0.001mm.
Limit backing plate 3 can be equipped between two bearings 8, limit backing plate 3 is sleeved on positioning core axle 4, and limits backing plate 3
Endoporus Da2 preferably with 4 clearance fit of positioning core axle, gap value is preferably in 0.8mm between 1.0mm, outer circle d1 and bearing
The equal clearance fits of centre bore D1 of seat 2, gap value is preferably in 0.10mm between 0.15mm；Limit the flat of the thickness face of backing plate 3
Row degree is preferably no greater than 0.002mm, to facilitate gentle pressing bearing 8；It is heavy that the left and right ends face of limit backing plate 3 can be designed with
Hole ensures that its left and right ends face can only fit with the outer ring of bearing 8, to ensure that locating turntable 1 can be with positioning core axle 4
It keeps rotating synchronously without frictional interference phenomenon.
In addition, bearing 8 preferably seals bearing 8, that is, the bearing 8 of sealing ring is carried, fifth wheel can be avoided to penetrate into bearing 8
Interior, the phenomenon that causing bearing 8 to be gradually stuck, achieving the purpose that tooling in long-term use can remain nimbly and freely.
0 to Figure 13 is please referred to Fig.1, Figure 10 is a kind of specific implementation mode of valve pocket positioning pipe provided by the utility model
Structural schematic diagram；Figure 11 is the section B-B sectional view of Figure 10；Figure 12 is one kind of positioning core axle provided by the utility model
The structural schematic diagram of specific implementation mode；Figure 13 is the K-K cross-sectional views of Figure 12.
The positioning core axle 4 that specific embodiment of the present invention provides, to ensure precision, 4 outer circle da's of positioning core axle
Cylindricity is preferably no greater than 0.001mm, and the flatness of positioning end face C is preferably no greater than 0.001mm, and end face C is to locating core for positioning
The verticality of 4 axial line of axis is preferably no greater than 0.001mm, and the axial line of column-shaped projection is coaxial to the axial line of positioning core axle 4
Degree is preferably no greater than 0.001mm；It is preferably provided with recessing groove close to the root of column-shaped projection in the positioning end face C of positioning core axle 4, with
Ensure that valve pocket 10 can keep good fit with positioning end face C when assembly；The right part of positioning core axle 4 and the right side of column-shaped projection
End can be circular conical surface, and the oblique angle of circular conical surface is respectively X2 and X3, can be respectively installation and the valve pocket 10 of positioning core axle 4
Installation play the guiding role.
The accurate tooling in the processing valve pocket hole that specific embodiment of the present invention provides, the installation for ease of valve pocket 10 are torn open
It unloads, preferred gap coordinates between valve pocket 10 endoporus Db and column-shaped projection outer circle db, and gap value is preferably in 0.001mm to 0.002mm
Between, between the left end endoporus da3 and positioning core axle 4 of valve pocket positioning pipe 5 preferred gap coordinate, gap value preferably 0 to
Between 0.002mm, preferred gap coordinates between 10 outer circle d2 of 5 right end endoporus D21 of valve pocket positioning pipe and valve pocket, and gap value preferably exists
0.035mm is between 0.040mm；And position end cap 6 and be preferably threadedly coupled with valve pocket positioning pipe 5, threaded connection is simple and reliable,
Convenient disassembly can realize the Fast Installation dismounting of valve pocket 10 in this way, and each valve pocket 10 is all made of same positioning datum, Neng Goushi
The batch machining in existing valve pocket hole, and can ensure the position accuracy of 10 upper valve sets of holes of each valve pocket；The spiral shell of 5 right end of valve pocket positioning pipe
The screw thread of line and positioning 6 left end of end cap is preferably the fine thread being mutually matched, and connection more balance is reliable.
The external screw thread for holding out against positioning screw is preferably fine thread, can be more evenly connected and tightly with positioning end cap 6
Gu；The left part for holding out against positioning bolt 7 is preferably spherical surface, and the center of spherical surface and the concentricity of its screw thread axial line are preferably little
In 0.003mm, using on spherical surface a little and hold out against valve pocket 10 by gasket, it is ensured that the only edge when steadily compressing valve pocket 10
Axial pressure and torsional forces without radial direction, prevent the valve pocket 10 during holding out against from rotating；Hold out against positioning bolt 7
Right end could be provided as outer six sides, and outer six side is preferably no greater than 0.01mm to the concentricity of its screw thread axial line, so as to by power
Square spanner keeps balance uniform stressed when installing or removing valve pocket 10.
Multigroup valve pocket hole is typically provided on valve pocket 10,10 left end of valve pocket is sleeved on column-shaped projection, if 10 left end of valve pocket is equipped with
Valve pocket hole, then multiple the to step down when that can be equipped with for processing valve pocket hole on column-shaped projection position corresponding with valve pocket hole
One relief hole, multiple first relief holes on column-shaped projection preferably by center axis centered on ring be uniformly distributed；In addition, valve pocket
10 right end can be inserted in the centre bore of positioning end cap 6, between positioning 6 centre bore D22 of end cap and 10 outer circle d2 of valve pocket preferably
Clearance fit, gap value, if the right end of valve pocket 10 is equipped with valve pocket hole, are positioning end cap preferably in 0.15mm between 0.20mm
Multiple second relief holes in valve pocket hole easy to process, multiple second relief holes can be equipped on 6 positions corresponding with valve pocket hole
It is preferred that ring is uniformly distributed centered on positioning end cap 6 by center axis, it is ensured that keep balance equal when installing and dismounting valve pocket 10
Even stress.
4 to Figure 16 are please referred to Fig.1, Figure 14 is a kind of knot of specific implementation mode of holding pin provided by the utility model
Structure schematic diagram；Figure 15 is a kind of structural schematic diagram of specific implementation mode of Fixed latches provided by the utility model；Figure 16
For a kind of structural schematic diagram of specific implementation mode of movable latch provided by the utility model.
The accurate tooling in the processing valve pocket hole that specific embodiment of the present invention provides, the outer circle d5 of Fixed latches 11 with
Connecting hole D5 interference fits on positioning core axle 4 and valve pocket positioning pipe 5, shrink value is preferably 0.002mm to 0.003mm, fastening
The outer circle d4 of pin 13 is interference fitted with the connecting hole D4 on locating turntable 1 and positioning core axle 4, shrink value be preferably 0.008mm extremely
0.010mm；In addition, the end of holding pin 13, Fixed latches 11 and movable latch 12 can be the circular conical surface for guiding, tiltedly
Angle can be respectively X4, X5 and X6, to facilitate the installation and dismounting of each pin.
When processing valve pocket hole using accurate tooling provided by the utility model, by positioning core axle 4, locating turntable 1, bearing block
2 and valve pocket positioning pipe 5 install, and by bearing block 2 be mounted on Wire EDM equipment on after, then pass through position end cap 6
Valve pocket 10 is pressed on the positioning end face C of positioning core axle 4 with positioning bolt 7 is held out against, is processed using Wire EDM equipment
Behind valve pocket hole in complete same direction, the movable latch 12 of connection location hole D32 and corresponding index hole D31 is removed, by locating core
Axis 4, valve pocket 10, locating turntable 1 etc. rotate by a certain angle as required, then connect location hole D32 and another by movable latch 12
Then group index hole D31 processes the valve pocket hole on other direction, according to the quantity of the circumferential upper valve sets of holes of valve pocket 10, the rest may be inferred,
The processing for completing all valve pocket holes, the component due to fixing valve pocket 10 in process can be as required along fixed axial line rotation
After positioned, all valve pocket holes are processed using same benchmark, and in rotary course, the Circular Run-out Tolerance of valve pocket 10 is not more than
0.001mm, therefore can ensure the Working position precision in each valve pocket hole, improve the qualification rate of valve pocket 10.In addition, processing not Tongfang
To valve pocket hole when, without dismantling valve pocket 10, be not necessarily to resetting, the processing efficiency in valve pocket hole can be improved, realize valve pocket 10
Batch production.
It substantially can be directly by valve pocket 10 using linear cutting equipment using accurate tooling provided by the utility model
The position degree in each group valve pocket hole controls within 0.002mm, and specifically, about the valve pocket hole location of 1/5 valve pocket 10 is not
More than 0.001mm, belong to quality product, the about valve pocket hole location of 3/5 valve pocket 10 is to belong to no more than 0.002mm
It is in addition no more than 0.003mm there are about the valve pocket hole location of 1/5 valve pocket 10, this 1/5 valve pocket 10 belongs to not in qualified products
Qualified products, then by artificial lappingout about 0.001mm, this part substandard product can be completely converted into qualified products,
Therefore the qualification rate of valve pocket 10 can be greatly improved, production cost is reduced, improves production efficiency.
Four groups of valve pocket holes are typically provided on common valve pocket 10, every group includes four valve pocket holes, by taking this valve pocket 10 as an example,
It can be set on locating turntable 1 there are four index hole D31, the angle of adjacent 1 central axis of index hole D31 relative positionings turntable is
90 °, it can set that there are two location hole D32, two location hole D32 with respect to 2 centre bore central axis of bearing block in respective shaft bearing 2
Symmetrical uniformly distributed, the internal diameter of two location hole D32 is identical as each internal diameter of index hole D31, and each location hole D32 and index hole D31
It is inside mounted on guide sleeve 14, and two location hole D32, two index hole D31s corresponding on locating turntable 1 is inserted by activity
Pin 12 connects, after assembly, two guide sleeves 14 in the axial line and two index hole D31 of two guide sleeves 14 in two location hole D32
Axial line keep corresponding consistent, the axial line of two guide sleeves 14 in two index hole D31 and the axial line of two bearings 8 are kept pair
Claim to be evenly distributed with, to ensure accurately to index product parts.
When processing valve pocket hole, Wire EDM equipment can be used to process in the both direction that angle is 180 ° simultaneously
Valve pocket hole, the movable latch 12 of connection location hole D32 and corresponding index hole D31 is removed after completion of processing, by positioning core axle 4,
Valve pocket 10, locating turntable 1 etc. are rotated by 90 °, then connect location hole D32 and another group of index hole D31 by movable latch 12, then
The valve pocket hole on the another two direction that angle is 180 ° is processed, the processing in all valve pocket holes is completed, it is simple and convenient.
In addition to the accurate tooling in above-mentioned processing valve pocket hole, it includes upper that specific embodiment of the present utility model, which also provides a kind of,
The valve pocket process equipment of accurate tooling is stated, refer to the prior art for the structure of other each sections of the valve pocket process equipment, herein not
It repeats again.
The accurate tooling and 10 process equipment of valve pocket in processing valve pocket hole provided by the utility model have been carried out in detail above
It is thin to introduce.Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art
For those of ordinary skill, without departing from the principle of this utility model, several change can also be carried out to the utility model
Into and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (10)
1. a kind of accurate tooling in processing valve pocket hole, which is characterized in that fixed including locating turntable, positioning core axle, valve pocket positioning pipe
Position end cap, and for the bearing block on process equipment；
The locating turntable, the bearing block and the valve pocket positioning pipe are sequentially sleeved in from left to right on the positioning core axle, institute
It states locating turntable to be interference fitted with the positioning core axle and be fixedly connected by holding pin, the bearing block and the positioning core axle
Between bearing be installed and be rotatably assorted connection by the bearing, the bearing block is equipped with location hole, the locating turntable
The annular centered on center axis is equipped with to be uniformly distributed and for being connected with the location hole to realize indexing positioning
Multiple index holes, the index hole connected with the location hole by movable latch；
The left end of the valve pocket positioning pipe is sleeved on the positioning core axle and is fixedly connected by Fixed latches, and the valve pocket is located at
In the valve pocket positioning pipe, the right end of the positioning core axle is the multi-diameter shaft with positioning end face and column-shaped projection, the valve pocket
Left end be sleeved on the column-shaped projection and offset with the positioning end face, the positioning end cap is socketed in the valve pocket positioning pipe
Right end, and it is described positioning end cap right end threaded connection be useful for the valve pocket being pressed on the described fixed of the positioning core axle
Positioning bolt is held out against on the end face of position, and the right end of the valve pocket and described hold out against are equipped with gasket, the valve pocket between positioning bolt
Positioning pipe is equipped with the annular centered on center axis and is uniformly distributed and multiple processing holes in the valve pocket hole easy to process.
2. precision tooling according to claim 1, which is characterized in that gap is matched between the valve pocket and the column-shaped projection
It closes, the valve pocket positioning pipe and the valve pocket clearance fit, the positioning end cap and the valve pocket clearance fit, the positioning end
Lid is threadedly coupled with the valve pocket positioning pipe.
3. precision tooling according to claim 2, which is characterized in that the column-shaped projection is corresponding with the valve pocket hole
Position is equipped with the ring centered on center axis and is uniformly distributed and first relief hole in the valve pocket hole easy to process；The valve
The right end of set is inserted into the centre bore of the positioning end cap, and positioning end cap position corresponding with the valve pocket hole is equipped with
Ring is uniformly distributed and second relief hole in the valve pocket hole easy to process centered on center axis.
4. the accurate tooling according to claims 1 to 3 any one, which is characterized in that the index hole and the positioning
Guide sleeve is mounted in hole, the outer circle of the guide sleeve is interference fitted with the index hole and the location hole, the guide sleeve
Endoporus and the movable latch clearance fit.
5. precision tooling according to claim 4, which is characterized in that between the bearing block and the positioning core axle side by side
There are two the bearing, the inner ring of the bearing is interference fitted with the positioning core axle for setting, the outer ring of the bearing with it is described
The centre bore of bearing block is interference fitted, and limit backing plate is equipped between two bearings, and the limit backing plate is sleeved on the positioning
On mandrel, and with the equal clearance fit of the centre bore of the positioning core axle and the bearing block, it is described limit backing plate left and right ends
Outer ring of the face respectively with the bearing positioned at its both sides fits, and is all provided on the left and right ends face of the limit backing plate useful
In the counterbore for avoiding the bearing inner race.
6. precision tooling according to claim 5, which is characterized in that the right end of the locating turntable is equipped with and the bearing
The boss that fits of inner ring.
7. precision tooling according to claim 6, which is characterized in that root of the positioning end face close to the column-shaped projection
Portion is equipped with the recessing groove for ensuring the valve pocket and the positioning end face good fit.
8. it is according to claim 7 precision tooling, which is characterized in that the end of the centre bore of the bearing block be for for
The bellmouth that the bearing installation is oriented to；The right part of the positioning core axle and the right part of the column-shaped projection are circular conical surface.
9. precision tooling according to claim 8, which is characterized in that the Fixed latches, the movable latch and described
The end of holding pin is the circular conical surface for guiding.
10. a kind of valve pocket process equipment includes the accurate tooling in processing valve pocket hole, which is characterized in that the processing valve pocket hole
Accurate tooling is specially the accurate tooling in the processing valve pocket hole described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448154.2U CN207757235U (en) | 2017-11-02 | 2017-11-02 | A kind of accurate tooling for processing valve pocket hole and a kind of valve pocket process equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448154.2U CN207757235U (en) | 2017-11-02 | 2017-11-02 | A kind of accurate tooling for processing valve pocket hole and a kind of valve pocket process equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207757235U true CN207757235U (en) | 2018-08-24 |
Family
ID=63178744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448154.2U Withdrawn - After Issue CN207757235U (en) | 2017-11-02 | 2017-11-02 | A kind of accurate tooling for processing valve pocket hole and a kind of valve pocket process equipment |
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| Country | Link |
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| CN (1) | CN207757235U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598590A (en) * | 2017-11-02 | 2018-01-19 | 中国航天科技集团公司烽火机械厂 | A kind of accurate frock for processing valve pocket hole and a kind of valve pocket process equipment |
| CN113798874A (en) * | 2021-09-30 | 2021-12-17 | 成都航天万欣科技有限公司 | Multi-station centering tool and centering method |
| CN114012194A (en) * | 2021-12-01 | 2022-02-08 | 通用技术集团机床工程研究院有限公司 | Electro-hydraulic servo valve sleeve precision finishing anchor clamps |
| CN115415790A (en) * | 2022-08-31 | 2022-12-02 | 四川航天烽火伺服控制技术有限公司 | Reverse planetary roller screw assembly tool and machining and assembling method |
-
2017
- 2017-11-02 CN CN201721448154.2U patent/CN207757235U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598590A (en) * | 2017-11-02 | 2018-01-19 | 中国航天科技集团公司烽火机械厂 | A kind of accurate frock for processing valve pocket hole and a kind of valve pocket process equipment |
| CN107598590B (en) * | 2017-11-02 | 2023-08-25 | 四川航天烽火伺服控制技术有限公司 | Precise tool for machining valve sleeve hole and valve sleeve machining equipment |
| CN113798874A (en) * | 2021-09-30 | 2021-12-17 | 成都航天万欣科技有限公司 | Multi-station centering tool and centering method |
| CN113798874B (en) * | 2021-09-30 | 2023-12-26 | 成都航天万欣科技有限公司 | Multi-station centering tool and centering method |
| CN114012194A (en) * | 2021-12-01 | 2022-02-08 | 通用技术集团机床工程研究院有限公司 | Electro-hydraulic servo valve sleeve precision finishing anchor clamps |
| CN115415790A (en) * | 2022-08-31 | 2022-12-02 | 四川航天烽火伺服控制技术有限公司 | Reverse planetary roller screw assembly tool and machining and assembling method |
| CN115415790B (en) * | 2022-08-31 | 2023-08-25 | 四川航天烽火伺服控制技术有限公司 | Reverse planetary roller screw assembly fixture and machining assembly method |
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