CN108031880A - A kind of inclined wedge internal expansion type centring means and spotting device - Google Patents
A kind of inclined wedge internal expansion type centring means and spotting device Download PDFInfo
- Publication number
- CN108031880A CN108031880A CN201711059685.7A CN201711059685A CN108031880A CN 108031880 A CN108031880 A CN 108031880A CN 201711059685 A CN201711059685 A CN 201711059685A CN 108031880 A CN108031880 A CN 108031880A
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- China
- Prior art keywords
- locating detent
- tapered sleeve
- flexible locating
- inclined wedge
- expansion type
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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
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
Abstract
The present invention relates to field of mechanical technique, and in particular to a kind of inclined wedge internal expansion type centring means, including cover board, upper movable tapered sleeve, upper tie-plate, screw rod, middle hitch, lower supporting frame, lower activity tapered sleeve and flexible locating detent；The cover board includes upper cover plate, inner cover plate and lower cover；The upper tie-plate, middle link pass through bolt along vertical direction with lower bracing frame and connect to form a cavity with screw；The upper movable tapered sleeve, screw rod and lower movable tapered sleeve are sequentially connected from top to bottom along vertical direction；The top of the upper movable tapered sleeve is connected with upper cover plate；The lower part of the upper movable tapered sleeve connects with inner cover plate and forms card slot；Convex shape is in the upper end of the screw rod and is arranged in the card slot；Structure design of the present invention is simple, easily operated, extends the scope of application of expansion sleeve type positioner, and suitable for the processing of all kinds of workpieces to be machined with Internal hole positioning, the required precision to workpiece to be machined endoporus is not high.
Description
Technical field
The present invention relates to field of mechanical technique, and in particular to a kind of inclined wedge internal expansion type centring means and spotting device.
Background technology
When processing at present is using workpiece of the endoporus as positioning datum, generally use expansion sleeve type positioner, its principle is rotation
Bolt makes pressing plate be pressed downward ringfeder and makes its outside spreading, and stretching inner hole of workpiece, reaches and be accurately positioned.Since ringfeder is uniform
Outside spreading, therefore the workpiece that this positioning method is highly suitable for having finishing endoporus positions, this is mainly due to finishing
Its circularity of endoporus and cylindricity it is fine, precision is high, is processed simultaneously because ringfeder is cylindrical by grinding machine, its circularity and cylinder
Degree is fine, and to position hole size identical for ringfeder outside diameter size and workpiece, therefore during the outside spreading of ringfeder, ringfeder is cylindrical
Surface can be contacted with interior internal surface of hole very well, therefore can ensure inner hole of workpiece central axis and positioner central axis weight
Close.But it will produce following two main problem for positioning endoporus circularity and all undesirable workpiece of cylindricity, first, work as work
When part endoporus circularity is undesirable, during spreading outside due to ringfeder, its outer surface cannot contact well with inner hole of workpiece inner surface,
Have gap generation；Second, when the cylindricity in hole is undesirable, one end stretching in hole is there is also, the other end does not contact, this two
A problem can all cause workpiece generation movement in process.Therefore required precision of the expansion sleeve type positioner to positioning endoporus
Compare it is high, be not suitable for inner hole precision it is undesirable workpiece positioning.
The content of the invention
The technical problems to be solved by the invention are：A kind of inclined wedge undesirable suitable for finishing endoporus and endoporus is provided
Internal expansion type centring means, while additionally provide a kind of method with above-mentioned inclined wedge internal expansion type centring means workpieces processing.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of inclined wedge internal expansion type centring means, bag
Include cover board, upper movable tapered sleeve, upper tie-plate, screw rod, middle hitch, lower supporting frame, lower activity tapered sleeve and flexible locating detent；
The cover board includes upper cover plate, inner cover plate and lower cover；The upper tie-plate, middle link and lower bracing frame edge
Vertical direction and pass through bolt and connect to form a cavity with screw；
The upper movable tapered sleeve, screw rod and lower movable tapered sleeve are sequentially connected from top to bottom along vertical direction；The upper work
The top of mantle set is connected with upper cover plate；The lower part of the upper movable tapered sleeve connects with inner cover plate and forms card slot；The screw rod
Upper end convex shape and to be arranged in the card slot；The lower end of the lower movable tapered sleeve is connected with lower cover；
The upper movable tapered sleeve, inner cover plate, screw rod and lower movable tapered sleeve are arranged in cavity；The upper movable tapered sleeve and upper
Tie-plate connects；The lower movable tapered sleeve is connected with lower bracing frame；
The flexible locating detent includes upper flexible locating detent and lower flexible locating detent；The upper flexible locating detent and upper activity
The lower external face of tapered sleeve connects and is arranged at tie-plate between the upper end of middle link；The lower flexible locating detent and
The outer surface of upper of lower activity tapered sleeve is connected and is arranged between lower end and the lower bracing frame of middle link；It is described flexible fixed
The quantity of position pawl and lower flexible locating detent is respectively three.
Further, the centre of the upper flexible status pawl or lower flexible locating detent is both provided with spring and spring backing pin.
Further, the upper flexible locating detent of three and the lower flexible locating detent of three are each evenly distributed on
In the circumferential plane at place, the upper flexible locating detent of three and the lower flexible locating detent of three stagger 30 degree of arrangements.
Further, the quantity of the upper flexible locating detent and lower flexible locating detent is respectively only three, three described
Upper flexible locating detent stretches out must be synchronous, and the lower flexible locating detent of three stretches out must be synchronous.
Further, the stretching of the upper flexible locating detent of three and the lower flexible locating detent of three cannot join
It is dynamic.
Further, key connection, the lower movable tapered sleeve and lower branch are passed through between the upper movable tapered sleeve and upper tie-plate
Support passes through key connection.
Further, a positioning pin is set respectively after the middle link and upper tie-plate and lower bracing frame locking.
Further, the lower end of the lower cover is additionally provided with stop nut.
Further, between the upper flexible locating detent, lower flexible locating detent, upper movable tapered sleeve and upper tie-plate and under
Lubricating cup is also both provided with movable part between movable tapered sleeve and lower bracing frame etc..
In order to solve the above-mentioned technical problem, another technical solution used in the present invention is：Provide a kind of inclined wedge internal expanding
Formula spotting device, the inclined wedge internal expansion type centring means are above-mentioned inclined wedge internal expansion type centring means, are comprised the steps of：
(1) inclined wedge internal expansion type centring means is hung in into platen, centering and fixation；
(2) work piece is hung in into inclined wedge internal expansion type centring means, screw rod is rotated by handle, the upper activity tapered sleeve of drives with
Lower activity tapered sleeve makees linear motion up and down so that and above flexible locating detent and lower flexible locating detent are protruding, centering work piece,
Finally lock stop nut；
(3) operation is processed work piece by lathe；
(4) after the completion of process operation, stop nut is unclamped, rotates screw rod back through handle, the bullet set by inside
Spring causes flexible locating detent and lower flexible position simultaneously to be taken out to contract, release work piece.
The beneficial effects of the present invention are：Structure design is simple, easy to operate, rotates screw rod by handle, drives respectively
Upper activity tapered sleeve and lower movable tapered sleeve in the vertical direction move along a straight line, by upper movable tapered sleeve and lower movable tapered sleeve up and down
Linear motion so that the upper flexible locating detent of three and the lower flexible locating detent of three are protruding at the same time or inwardly receive at the same time
Contracting, using the principle of three-point fix so that above flexible locating detent and lower flexible locating detent can be corrected in workpiece to be machined automatically
The central axis in hole, reaches the automatic positioning of workpiece to be machined endoporus and unclasps.So that using inclined wedge internal expansion type centring means
When being positioned to workpiece to be machined endoporus, will not because of workpiece to be machined endoporus circularity and cylindricity it is undesirable, so as to make
It cannot meet processing request into workpiece to be machined, a kind of inclined wedge internal expansion type centring means of the invention extends expansion sleeve type positioning dress
The scope of application put, will to the precision of workpiece to be machined endoporus suitable for the processing of all kinds of workpieces to be machined with Internal hole positioning
Ask not high.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of inclined wedge internal expansion type centring means of the specific embodiment of the invention；
Fig. 2 is a kind of top view of inclined wedge internal expansion type centring means of the specific embodiment of the invention；
Fig. 3 is that a kind of structure of the upper flexible locating detent of inclined wedge internal expansion type centring means of the specific embodiment of the invention is shown
It is intended to；
Fig. 4 is that a kind of structure of the lower flexible locating detent of inclined wedge internal expansion type centring means of the specific embodiment of the invention is shown
It is intended to；
Fig. 5 is the connection schematic diagram of a kind of the inclined wedge internal expansion type centring means and fixture of the specific embodiment of the invention；
Label declaration：
1st, cover board；111st, upper cover plate；112nd, inner cover plate；113rd, lower cover；2nd, upper movable tapered sleeve；
3rd, upper tie-plate；4th, screw rod；5th, middle hitch；6th, lower bracing frame；7th, lower movable tapered sleeve；8th, stretch locating detent；
81st, upper flexible locating detent；82nd, lower flexible locating detent；9th, spring；10th, spring backing pin；11st, key；12nd, positioning pin；13rd, locking spiral shell
It is female；14th, bolt；15th, screw；16th, lubricating cup；17th, handle.
Embodiment
For the technology contents that the present invention will be described in detail, the objects and the effects, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：A kind of inclined wedge internal expansion type centring means is designed, screw rod is rotated by handle 17,
Upper movable tapered sleeve and lower movable tapered sleeve is driven to do linear motion up and down in vertical direction respectively so that the upper flexible locating detent of three
It is protruding at the same time or at the same time to contract with the lower flexible locating detent of three, reach workpiece to be machined endoporus automatic positioning and
Unclasp.
It refer to shown in Fig. 1 to Fig. 5, a kind of inclined wedge internal expansion type centring means, including cover board 1, upper movable tapered sleeve 2, the first line of a couplet
Connect disk 3, screw rod 4, middle hitch 5, lower supporting frame 6, lower activity tapered sleeve 7 and flexible locating detent 8；
The cover board 1 includes upper cover plate 111, inner cover plate 112 and lower cover 113；The upper tie-plate 3, middle link 5
Bolt 14 is passed through along vertical direction and the connection of screw 15 forms a cavity with lower bracing frame 6；
The upper movable tapered sleeve 2, screw rod 4 and lower movable tapered sleeve 7 are sequentially connected from top to bottom along vertical direction；On described
The top of movable tapered sleeve 2 and upper cover plate 111 connect；The lower part of the upper movable tapered sleeve 2 and inner cover plate 112 connect and form card
Groove；Convex shape is in the upper end of the screw rod 4 and is arranged in the card slot；The lower end of the lower movable tapered sleeve 7 and lower cover
113 connections；
The upper movable tapered sleeve 2, inner cover plate 112, screw rod 4 and lower movable tapered sleeve 7 are arranged in cavity；The upper activity cone
Set 2 and upper tie-plate 3 connect；The lower movable tapered sleeve 7 and lower bracing frame 6 connect；
The flexible locating detent 8 includes upper flexible locating detent 81 and lower flexible locating detent 82；The upper flexible locating detent 81
And the lower external face of upper movable tapered sleeve 2 connects and is arranged at tie-plate 3 between the upper end of middle link 5；Under described
Flexible locating detent 82 connects with the outer surface of upper of lower movable tapered sleeve 7 and is arranged at lower end and the lower bracing frame 6 of middle link 5
Between；The quantity of the upper flexible locating detent 81 and lower flexible locating detent 82 is respectively three.
As can be seen from the above description, a kind of course of work of inclined wedge internal expansion type centring means of the invention is：To being processed work
When part is processed operation, screw rod 4 is rotated by handle 17, drives upper movable tapered sleeve 2 and lower movable tapered sleeve 7 respectively in vertical side
Move along a straight line upwards, pass through the upper flexible positioning of upper movable tapered sleeve 2 and the linear motion three up and down of lower movable tapered sleeve 7
Protruding locking workpiece to be machined endoporus, opening lathe are processed at the same time for pawl 81 and the lower flexible locating detent 82 of three；When
After workpiece to be machined machines, lathe is closed, screw rod 4 is rotated by handle 17, passes through upper movable tapered sleeve 2 and lower movable tapered sleeve
7 linear motion up and down is so that the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three are unclamped to contract at the same time
Workpiece to be machined endoporus, takes out workpiece and completes processing.
As can be seen from the above description, a kind of beneficial effect of inclined wedge internal expansion type centring means of the invention is：Structure design
Simply, it is easy to operate, screw rod 4 is rotated by handle 17, drives upper movable tapered sleeve 2 and lower movable tapered sleeve 7 respectively in vertical direction
On move along a straight line, pass through the linear motion up and down of upper movable tapered sleeve 2 and lower movable tapered sleeve 7 so that the upper flexible positioning of three
Pawl 81 and the lower flexible locating detent 82 of three are protruding at the same time or at the same time to contract, using the principle of three-point fix so that
Upper flexible locating detent 81 and lower flexible locating detent 82 can correct the central axis of workpiece to be machined endoporus automatically, reach processed
The automatic positioning of inner hole of workpiece and unclasp.So that workpiece to be machined endoporus is being positioned using inclined wedge internal expansion type centring means
When, will not because of workpiece to be machined endoporus circularity and cylindricity it is undesirable, so as to cause workpiece to be machined to meet to process
It is required that a kind of inclined wedge internal expansion type centring means of the invention extends the scope of application of expansion sleeve type positioner, suitable for all kinds of
With the processing of the workpiece to be machined of Internal hole positioning, the required precision to workpiece to be machined endoporus is not high.
Further, the centre of the upper flexible status pawl 81 or lower flexible locating detent 82 is both provided with spring 9 and spring
Backing pin 10.
Seen from the above description, spring 9 and spring are set in upper flexible status pawl 81 or the middle of lower flexible locating detent 82
Backing pin 10, can in the effect by spring 9 and spring backing pin 10 flexible locating detent 81 and lower flexible locating detent 82 to overhanging
Go out to lock workpiece to be machined endoporus or unclamp workpiece to be machined endoporus to contract.
Further, the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three each uniformly divide
In the circumferential plane at place, the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three stagger 30 degree of cloth cloth
Put.
Seen from the above description, the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three stagger 30 degree
Arrangement, when the circularity of workpiece to be machined is bad, enables flexible locating detent 8 to be connect in a plurality of directions with workpiece to be machined endoporus
Touch, can ensure workpiece to be machined endoporus central axis can more preferably and inclined wedge internal expansion type centring means central axis weight
Close.
Further, the quantity of the upper flexible locating detent 81 and lower flexible locating detent 82 is respectively only three, three
The upper flexible locating detent 81 stretches out must be synchronous, and the lower flexible locating detent 82 of three stretches out must be synchronous.
Seen from the above description, the quantity of upper flexible locating detent 81 and lower flexible locating detent 82 is respectively only three, at the same time
The upper flexible locating detent 81 of three stretches out must be synchronous, and the lower flexible locating detent 82 of three stretches out must be synchronous, main
If in order to realize three-point fix principle so that can be by the upper flexible locating detent 81 or the lower flexible locating detent 82 of three of three
The central axis of the synchronous center line for stretching out automatic correction workpiece to be machined and inclined wedge internal expansion type centring means overlap.
Further, the stretching of the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three cannot
Linkage.
Seen from the above description, the stretching of the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three cannot join
Dynamic, i.e., only after the upper flexible locating detent 81 of three stretches out in place, the lower flexible locating detent 82 of three could continue to overhanging
Go out, or after the lower flexible locating detent 82 of three stretches out in place, the upper flexible locating detent 81 of three could continue to overhanging
Go out, the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three do not link primarily to ensureing that workpiece to be machined is justified
When column degree is bad, it is ensured that above stretch locating detent 81 and lower flexible locating detent 82 energy and the contact of workpiece to be machined endoporus.
Further, connected between the upper movable tapered sleeve 2 and upper tie-plate 3 by key 11,7 He of the lower movable tapered sleeve
Lower bracing frame 6 is connected by key 11.
Seen from the above description, upper movable tapered sleeve 2 and upper tie-plate 3, lower movable tapered sleeve 7 and lower bracing frame 6 all pass through
Key 11 connects, primarily to it is circumferentially fixed between limiting them, make them to carry out moving along a straight line up and down, limit
Rotate.
Further, the middle link 5 and upper tie-plate 3 and lower bracing frame 6 set a positioning respectively after locking
Pin 12.
Seen from the above description, one is set respectively after middle link 5 and upper tie-plate 3 and lower bracing frame 6 are locked
Positioning pin 12, primarily to the rotational freedom in horizontal plane, further middle link 5 and upper tie-plate 3 occurs in limitation
And the locking of lower bracing frame 6.
Further, the lower end of the lower cover 113 is additionally provided with stop nut 13.
Seen from the above description, check bolt 13 is set in the lower end of lower cover 113, primarily to being played to screw rod 4
Clamping action, prevents during the work time, and situation about loosening occurs in screw rod 4.
Further, between the upper flexible locating detent 81, lower flexible locating detent 82, upper movable tapered sleeve 2 and upper tie-plate 3
And lubricating cup 16 is also both provided with movable part between lower movable tapered sleeve 7 and lower bracing frame 6 etc..
Seen from the above description, should be to three when inclined wedge internal expansion type centring means is used continuously five times or six times
The lower flexible locating detent 82 of upper flexible locating detent 81, three, between upper movable tapered sleeve 2 and upper tie-plate 3 and lower activity cone
Wait the lubricating cup 16 at movable part to fill appropriate totally clean lubricating oil between set 7 and lower bracing frame 6, help to improve device
Service life.
It refer to shown in Fig. 1 to Fig. 5, present invention also offers a kind of inclined wedge internal expansion type spotting device, the inclined wedge internal expanding
Formula centring means is above-mentioned inclined wedge internal expansion type centring means, is comprised the steps of：
(1) inclined wedge internal expansion type centring means is hung in into platen, centering and fixation；
(2) work piece is hung in into inclined wedge internal expansion type centring means, it is movable in drive to bore by the rotation screw rod 4 of handle 17
Set 2 and lower movable tapered sleeve 7 are made to move along a straight line up and down so that above flexible locating detent 81 and lower flexible locating detent 82 are protruding, look for
Positive work piece, finally locks stop nut 13；
(3) operation is processed work piece by lathe；
(4) after the completion of process operation, stop nut 13 is unclamped, screw rod 4 is rotated back through handle 17, is set by inside
Spring 9 so that upper flexible locating detent 81 and lower flexible positioning 82 are unclamped work piece and are simultaneously taken out to contract.
It refer to shown in Fig. 1 to Fig. 5, the embodiment of the present invention one is：
A kind of inclined wedge internal expansion type centring means, including cover board 1, upper movable tapered sleeve 2, upper tie-plate 3, screw rod 4, centre connection
Frame 5, lower supporting frame 6, lower activity tapered sleeve 7 and flexible locating detent 8；
The cover board 1 includes upper cover plate 111, inner cover plate 112 and lower cover 113；The upper tie-plate 3, middle link 5
Bolt 14 is passed through along vertical direction and the connection of screw 15 forms a cavity with lower bracing frame 6；
The upper movable tapered sleeve 2, screw rod 4 and lower movable tapered sleeve 7 are sequentially connected from top to bottom along vertical direction；On described
The top of movable tapered sleeve 2 and upper cover plate 111 connect；The lower part of the upper movable tapered sleeve 2 and inner cover plate 112 connect and form card
Groove；Convex shape is in the upper end of the screw rod 4 and is arranged in the card slot；The lower end of the lower movable tapered sleeve 7 and lower cover
113 connections；
The upper movable tapered sleeve 2, inner cover plate 112, screw rod 4 and lower movable tapered sleeve 7 are arranged in cavity；The upper activity cone
Set 2 and upper tie-plate 3 connect；The lower movable tapered sleeve 7 and lower bracing frame 6 connect；
The flexible locating detent 8 includes upper flexible locating detent 81 and lower flexible locating detent 82；The upper flexible locating detent 81
And the lower external face of upper movable tapered sleeve 2 connects and is arranged at tie-plate 3 between the upper end of middle link 5；Under described
Flexible locating detent 82 connects with the outer surface of upper of lower movable tapered sleeve 7 and is arranged at lower end and the lower bracing frame 6 of middle link 5
Between；The quantity of the upper flexible locating detent 81 and lower flexible locating detent 82 is respectively three.
The centre of the upper flexible status pawl 81 or lower flexible locating detent 82 is both provided with spring 9 and spring backing pin 10.
Where the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three are each evenly distributed on
Circumferential plane on, the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three stagger 30 degree of arrangements.
The quantity of the upper flexible locating detent 81 and lower flexible locating detent 82 is respectively only three, three described flexible
Locating detent 81 stretches out must be synchronous, and the lower flexible locating detent 82 of three stretches out must be synchronous.
The stretching of the upper flexible locating detent 81 of three and the lower flexible locating detent 82 of three cannot link.
Connected between the upper movable tapered sleeve 2 and upper tie-plate 3 by key 11, the lower movable tapered sleeve 7 and lower bracing frame 6
Connected by key 11.
The middle link 5 and upper tie-plate 3 and lower bracing frame 6 set a positioning pin 12 respectively after locking.
The lower end of the lower cover 113 is additionally provided with stop nut 13.
Between the upper flexible locating detent 81, lower flexible locating detent 82, upper movable tapered sleeve 2 and upper tie-plate 3 and lower work
Lubricating cup 16 is also both provided with movable part between mantle set 7 and lower bracing frame 6 etc..
It refer to shown in Fig. 1 to Fig. 5, an alternative embodiment of the invention two is：
Present invention also offers a kind of inclined wedge internal expansion type spotting device, the inclined wedge internal expansion type centring means is above-mentioned oblique
Wedge internal expansion type centring means, comprises the steps of：
(1) inclined wedge internal expansion type centring means is hung in into platen, centering and fixation；
(2) work piece is hung in into inclined wedge internal expansion type centring means, it is movable in drive to bore by the rotation screw rod 4 of handle 17
Set 2 and lower movable tapered sleeve 7 are made to move along a straight line up and down so that above flexible locating detent 81 and lower flexible locating detent 82 are protruding, look for
Positive work piece, finally locks stop nut 13；
(3) operation is processed work piece by lathe；
(4) after the completion of process operation, stop nut 13 is unclamped, screw rod 4 is rotated back through handle 17, is set by inside
Spring 9 so that upper flexible locating detent 81 and lower flexible positioning 82 are unclamped work piece and are simultaneously taken out to contract.
In conclusion a kind of inclined wedge internal expansion type centring means provided by the invention, structure design is simple, easy to operate, leads to
Cross handle and rotate screw rod, drive upper movable tapered sleeve and lower movable tapered sleeve in the vertical direction to move along a straight line respectively, pass through upper work
Mantle covers and the linear motion up and down of lower movable tapered sleeve so that the upper flexible locating detent of three and the lower flexible locating detent of three are same
When it is protruding or at the same time to contract, using the principle of three-point fix so that above stretch locating detent and lower flexible locating detent energy
The central axis of enough automatic correction workpiece to be machined endoporus, reaches the automatic positioning of workpiece to be machined endoporus and unclasps.So that
, will not be because of the circularity of workpiece to be machined endoporus when being positioned using inclined wedge internal expansion type centring means to workpiece to be machined endoporus
It is undesirable with cylindricity, so as to cause workpiece to be machined to meet processing request, a kind of inclined wedge internal expansion type of the invention centering
Device extends the scope of application of expansion sleeve type positioner, right suitable for the processing of all kinds of workpieces to be machined with Internal hole positioning
The required precision of workpiece to be machined endoporus is not high.In upper flexible status pawl or the middle of lower flexible locating detent, spring and spring are set
Backing pin, can be added in the effect by spring and spring backing pin in flexible locating detent and the protruding locking of lower flexible locating detent
Work inner hole of workpiece unclamps workpiece to be machined endoporus to contract.The upper flexible locating detent of three and three s' is lower flexible
Locating detent staggers 30 degree of arrangements, when the circularity of workpiece to be machined is bad, enable flexible locating detent in a plurality of directions and by
Workpieces processing endoporus contacts, and can ensure that the central axis of workpiece to be machined endoporus can more preferably and inclined wedge internal expansion type centring means
Central axis overlap.The quantity of upper flexible locating detent and lower flexible locating detent is respectively only three, while on three described
Flexible locating detent stretches out must be synchronous, and the lower flexible locating detent of three stretches out must be synchronous, primarily to realizing at 3 points
Positioning principle so that automatic correction quilt can be stretched out by the upper flexible locating detent of three or the synchronous of the lower flexible locating detent of three
The center line of workpieces processing and the central axis of inclined wedge internal expansion type centring means overlap.The upper flexible locating detent of three and three s'
The stretching of flexible locating detent cannot link down, i.e., only after the upper flexible locating detent of three stretches out in place, three lower stretches
Locating detent could continue it is protruding, or after the lower flexible locating detent of three stretches out in place, the upper flexible positioning of three
Pawl could continue protruding, and the upper flexible locating detent of three and the lower flexible locating detent of three do not link primarily to ensureing
When workpiece to be machined cylindricity is bad, it is ensured that above flexible locating detent and lower flexible locating detent can connect with workpiece to be machined endoporus
Touch.Upper activity tapered sleeve and upper tie-plate, lower movable tapered sleeve and lower bracing frame are connected by key, primarily to limiting it
Between it is circumferentially fixed, make they can only carry out up and down move along a straight line, limitation rotate.In middle link and upper tie-plate
And a positioning pin is set respectively after lower bracing frame locking, primarily to there is the rotational freedom in horizontal plane in limitation, into
The locking of link and upper tie-plate and lower bracing frame among one step.Check bolt is set in the lower end of lower cover, is mainly
Clamping action is played to screw rod, is prevented during the work time, situation about loosening occurs in screw rod.Finally when inclined wedge internal expansion type is felt relieved
, should be movable to the upper flexible locating detent of three and the lower flexible locating detent of three etc. when device is used continuously five times or six times
The appropriate clean clean lubricating oil of lubricating cup filling at part, helps to improve the service life of device.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, are directly or indirectly used in relevant technical field, similarly include
In the scope of patent protection of the present invention.
Claims (10)
- A kind of 1. inclined wedge internal expansion type centring means, it is characterised in that including cover board, upper movable tapered sleeve, upper tie-plate, screw rod, in Between hitch, lower supporting frame, lower activity tapered sleeve and flexible locating detent；The cover board includes upper cover plate, inner cover plate and lower cover；The upper tie-plate, middle link and lower bracing frame are along perpendicular Nogata connects to form a cavity to passing through bolt with screw；The upper movable tapered sleeve, screw rod and lower movable tapered sleeve are sequentially connected from top to bottom along vertical direction；The upper activity cone The top of set is connected with upper cover plate；The lower part of the upper movable tapered sleeve connects with inner cover plate and forms card slot；The screw rod it is upper Hold as convex shape and be arranged in the card slot；The lower end of the lower movable tapered sleeve is connected with lower cover；The upper movable tapered sleeve, inner cover plate, screw rod and lower movable tapered sleeve are arranged in cavity；The upper movable tapered sleeve and upper connection Disk connects；The lower movable tapered sleeve is connected with lower bracing frame；The flexible locating detent includes upper flexible locating detent and lower flexible locating detent；The upper flexible locating detent and upper movable tapered sleeve Lower external face connect and be arranged at tie-plate between the upper end of middle link；The lower flexible locating detent and lower work The outer surface of upper of mantle set is connected and is arranged between lower end and the lower bracing frame of middle link；The upper flexible locating detent Quantity with lower flexible locating detent is respectively three.
- 2. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the upper flexible locating detent or under stretch The centre of contracting locating detent is both provided with spring and spring backing pin.
- 3. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the upper flexible locating detent of three The lower flexible locating detent with three is each evenly distributed in the circumferential plane at place, the upper flexible locating detent of three Stagger 30 degree of arrangements with the lower flexible locating detent of three.
- 4. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the upper flexible locating detent is stretched with The quantity of contracting locating detent is respectively only three, and the upper flexible locating detent of three stretches out must be synchronous, is stretched under three described Contracting locating detent stretches out must be synchronous.
- 5. the inclined wedge internal expansion type centring means according to claim 1 and 2, it is characterised in that upper stretch of three is determined The stretching of position pawl and the lower flexible locating detent of three cannot link.
- 6. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the upper movable tapered sleeve and upper connection Key connection is passed through by key connection, the lower movable tapered sleeve and lower bracing frame between disk.
- 7. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the middle link and upper connection A positioning pin is set respectively after disk and lower bracing frame locking.
- 8. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the lower end of the lower cover is also set up There is stop nut.
- 9. inclined wedge internal expansion type centring means according to claim 1, it is characterised in that the upper flexible locating detent, under stretch Also all set at movable part between contracting locating detent, upper movable tapered sleeve and upper tie-plate and between lower movable tapered sleeve and lower bracing frame etc. It is equipped with lubricating cup.
- 10. a kind of inclined wedge internal expansion type spotting device, it is characterised in that comprise the steps of：(1) inclined wedge internal expansion type centring means is hung in into platen, centering and fixation；The inclined wedge internal expansion type centring means is Claim 1 to 9 any one of them inclined wedge internal expansion type centring means；(2) work piece is hung in into inclined wedge internal expansion type centring means, screw rod is rotated by handle, activity tapered sleeve and lower work in drives Mantle interplanting moves along a straight line up and down so that above flexible locating detent and lower flexible locating detent are protruding, centering work piece, finally Lock stop nut；(3) operation is processed work piece by lathe；(4) after the completion of process operation, stop nut is unclamped, rotates screw rod back through handle, the spring set by inside makes Flexible locating detent must be gone up and lower flexible position simultaneously is taken out to contract, release work piece.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700363.1A CN111730085B (en) | 2017-11-01 | 2017-11-01 | Workpiece centering device and centering method suitable for low-precision cylindrical inner hole |
| CN201711059685.7A CN108031880B (en) | 2017-11-01 | 2017-11-01 | Wedge internal expansion type centering device and centering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059685.7A CN108031880B (en) | 2017-11-01 | 2017-11-01 | Wedge internal expansion type centering device and centering method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700363.1A Division CN111730085B (en) | 2017-11-01 | 2017-11-01 | Workpiece centering device and centering method suitable for low-precision cylindrical inner hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031880A true CN108031880A (en) | 2018-05-15 |
| CN108031880B CN108031880B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700363.1A Active CN111730085B (en) | 2017-11-01 | 2017-11-01 | Workpiece centering device and centering method suitable for low-precision cylindrical inner hole |
| CN201711059685.7A Active CN108031880B (en) | 2017-11-01 | 2017-11-01 | Wedge internal expansion type centering device and centering method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700363.1A Active CN111730085B (en) | 2017-11-01 | 2017-11-01 | Workpiece centering device and centering method suitable for low-precision cylindrical inner hole |
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|---|---|
| CN (2) | CN111730085B (en) |
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| US4767125A (en) * | 1986-06-25 | 1988-08-30 | Owens-Illinois Television Products Inc. | Expansion chuck |
| CN87102955A (en) * | 1987-04-21 | 1988-11-09 | 武汉钢铁公司专利管理室 | Combined core-axle |
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| CN203725807U (en) * | 2014-01-09 | 2014-07-23 | 江苏兄弟活塞有限公司 | Sleeve part machining fixture |
| CN205057104U (en) * | 2015-10-13 | 2016-03-02 | 永安市培鑫工贸有限公司 | A valve body fixture |
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| DE3317828A1 (en) * | 1983-05-17 | 1984-11-22 | Josef 7230 Schramberg Moosmann | Quick-action mandrel for machine tools |
| CN102069207A (en) * | 2011-01-09 | 2011-05-25 | 无锡银联机械有限公司 | Device capable of elastically clamping two ends of long hole |
| CN202539614U (en) * | 2011-12-28 | 2012-11-21 | 包头市佳隆金属制品有限责任公司 | Double-taper sleeve split adjustable turning and grinding mandrel device |
| CN203448698U (en) * | 2013-03-21 | 2014-02-26 | 南京数控机床有限公司 | Novel single draw-bar expanding mandrel device |
| CN103252515B (en) * | 2013-06-07 | 2016-04-06 | 新余钢铁集团有限公司 | A kind of long excircle of barrel-shaped parts Special Fixture for Machining |
| CN105252032B (en) * | 2015-10-13 | 2017-11-21 | 永安市培鑫工贸有限公司 | A kind of valve body fixture |
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- 2017-11-01 CN CN201711059685.7A patent/CN108031880B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767125A (en) * | 1986-06-25 | 1988-08-30 | Owens-Illinois Television Products Inc. | Expansion chuck |
| CN87102955A (en) * | 1987-04-21 | 1988-11-09 | 武汉钢铁公司专利管理室 | Combined core-axle |
| CN203062324U (en) * | 2012-12-14 | 2013-07-17 | 重庆洋迪机电有限公司 | Floating clamping fixture for part with deep hole |
| CN203509095U (en) * | 2013-10-10 | 2014-04-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Annular thin-wall pipe fitting centering and tensioning mechanism |
| CN203725807U (en) * | 2014-01-09 | 2014-07-23 | 江苏兄弟活塞有限公司 | Sleeve part machining fixture |
| CN205057104U (en) * | 2015-10-13 | 2016-03-02 | 永安市培鑫工贸有限公司 | A valve body fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111730085A (en) | 2020-10-02 |
| CN108031880B (en) | 2020-07-28 |
| CN111730085B (en) | 2021-06-15 |
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