A kind of panoramic table chuck universal fixturing of laser accurate positioning
Technical field
The invention belongs to laser application technique field, and in particular to a kind of panoramic table chuck universal clamp of laser accurate positioning
Tool.
Background technology
Laser melting and coating process has energy density height, deformation is small, heat affected area is narrow, cladding speed is high, easily realizes automatic control
System, without following process the advantages of, in recent years just turn into metal material processing with manufacture important means, apply more and more widely
In fields such as automobile, Aero-Space, national defense industry, shipbuilding, ocean engineering, nuclear power generating equipments, involved material covers almost
All metal materials.
, it is necessary to be fixed clamping workpiece by special fixture in laser cladding process, for irregular contour or
For the workpiece of person's eccentric structure, it is always a problem that clamping, which is fixed,.Such as traditional three-eccentric-butterfly-valve butterfly plate clamp for machining one
As be all but this folder using making the special oblique mould of scalene cone processing that the center line of circular cone overlaps with the centre of gyration line of lathe
The accuracy of manufacture of tool is difficult to ensure card very much, and cost is high.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, there is provided a kind of panoramic table chuck universal clamp of laser accurate positioning
Tool;The panoramic table chuck universal fixturing accurate positioning of laser accurate positioning, clamping is reliable, easy to adjust, adaptability is good, dismounting
Flexibly, manufacture is simple, cost is low.
The present invention is achieved through the following technical solutions:
A kind of panoramic table chuck universal fixturing of laser accurate positioning, including revolution hollow shaft, main backstop, two groups of outsides
Adjustment mechanism and four groups of inner face adjustment mechanisms;
It is described to turn round the hollow cylinder shaped that hollow shaft is double-deck thimble structure, including inner ring and outer rings, inner ring and outer rings
Between connected by bearing, the central axis of inner ring and outer rings overlaps;Locking pin structure is provided between inner ring and outer rings;
One end is fixedly connected the outer shroud of the revolution hollow shaft by ring flange with main backstop vertically, outside the other end
The footpath surface of revolution is used for the three-jaw or multi-jaw chuck for being clamped in panoramic table;
A two-way transmitting laser designator is installed in the inner ring of the revolution hollow shaft, the two-way transmitting laser designator
Can be to the axis hole both ends of revolution hollow shaft simultaneously or the beam laser beam of time division emission two, the requirement of its installation position are launched two beams and swashed
The optical axis direction of light beam overlaps with turning round the central axis of hollow shaft;One is also equipped with the inner ring of the revolution hollow shaft to swash
Optar, there is the bias more than 1mm between the centre of gyration point of measurement position and butterfly plate of the laser range finder on butterfly plate
Distance;
The main backstop is fixed on the main support side plate group of main support transverse slat left and right ends by main support transverse slat and two pieces
Into;Tapped through hole is offered in two pieces of main support side plates;It is described it is main support transverse slat medial surface be provided with about two it is parallel
I-shaped slide rail;
The center of the main support transverse slat offers a central through hole, the central through hole and the axle of revolution hollow shaft
Stomidium position correspondence so that the one laser beam of two-way transmitting laser designator transmitting can be radiated at through the central through hole
On butterfly plate to be processed;
The left and right sides of two groups of outside adjustment mechanisms relative centrally disposed through hole respectively;Four groups of inner face adjustment mechanisms pair
The periphery of the centrally disposed through hole claimed, wherein two groups of inner face adjustment mechanisms are located at the left side of central through hole, and respectively positioned at a left side
Above and below the outside adjustment mechanism of side;Other two groups of inner face adjustment mechanisms are located at the right side of central through hole, and position respectively
Above and below the outside adjustment mechanism on right side.
Further, the inner face adjustment mechanism include outer slide, inner slide, connecting bridge, convex supports block, secondary threaded spindle cap nut and
Secondary transverse screw;Outer slide and inner slide are arranged on I-shaped slide rail, and the outer slide is described interior close to main support side plate
Sliding block is close to central through hole;Through hole is offered on the outer slide, tapped blind hole is offered on inner slide;
The tapped blind hole of secondary transverse screw and inner slide forms screw thread and coordinated;One end of secondary transverse screw is provided with fixed company
The secondary threaded spindle cap nut connect, the other end pass through the through hole of outer slide, and are tightened with the tapped blind hole of inner slide;In secondary threaded spindle cap nut and
Time locking nut is provided between outer slide, and is coordinated with secondary transverse screw;Connecting bridge arranges that one end is consolidated with inner slide vertically
Fixed, the other end is fixed with convex supports block, and the convex supports block is used for the inner faces contact with the valve ear of butterfly plate.
Further, the convex supports block is the valve ear form fit of modular assembly part, its profile and butterfly plate.
Further, it is provided between two groups of two outer slides in the inner face adjustment mechanism in the left side of central through hole
One meeting stile, two outer slides are fixed together;The other two groups inner face adjustment positioned at the right side of central through hole
A meeting stile is also equipped between two outer slides in mechanism, two outer slides are fixed together.
Further, the outside adjustment mechanism include promote mainly block, main transverse screw, primary lock nut, driving screw nut,
Reverse locking nut, cap-type nut;It is described to promote mainly the block that block is the centre position for being arranged on meeting stile, block is promoted mainly with being connected
Lath is fixed together, and both link;Described promote mainly offers through hole on block, main transverse screw and the spiral shell of main support side plate
Line through hole forms screw thread and coordinated;One end of main transverse screw is provided with the driving screw nut being fixedly connected, and the other end sequentially passes through
Tapped through hole in main support side plate and the through hole on block is promoted mainly, and cap-type nut is installed in outermost;The cap-type nut
For propping up the butterfly plate locating and machining hole on butterfly plate;Primary lock nut is provided between block, main support side plate promoting mainly, is being promoted mainly
It is screw thread that reverse locking nut, primary lock nut and reverse locking nut are provided between block, cap-type nut with main transverse screw
Coordinate.
The present invention has the advantages that:
1st, the panoramic table chuck universal fixturing of laser accurate positioning of the present invention keeps outer shroud not in actual use
It is dynamic so that inner ring rotates, then the two-way transmitting laser designator in inner ring and laser range finder rotate with.On the one hand, it is double
It can indicate that the centre of gyration point of outside panoramic table, fixture and butterfly plate workpiece three whether one to transmitting laser designator
On bar straight line, if making the laser beam that it sends be processed in panoramic table or butterfly plate with itself rotation of two-way transmitting laser designator
Annulus or elliptical ring track is presented in the incident point of part, then corresponding to need to finely tune universal fixturing of the present invention, i.e. adjustment folder
Tool is in the clamping orientation of panoramic table chuck or the clamping orientation of butterfly plate workpiece so that outside panoramic table, fixture and butterfly plate processing
The centre of gyration point of this three of part is kept point-blank, i.e., two-way transmitting laser designator send laser beam in panoramic table and
The incident point of butterfly plate workpiece is fixed.The method solves current panoramic table chuck mode clamping and is difficult to ensure that panoramic table and work
The positioning problem of the rotation axis coincident of part, it is ensured that the disc of butterfly plate and the axiality of the panoramic table surface of revolution.
2nd, the reading of laser range finder can indicate the clamping datum plane of butterfly plate workpiece (i.e. workpiece is towards folder in the present invention
The side of tool) it is whether vertical relative to its axis of rotation, if the reading relative fluctuation amount of laser range finder has exceeded butterfly plate and added
The surface roughness value of the clamping datum plane of workpiece, then illustrate the clamping datum plane of butterfly plate workpiece relative to its revolution
Axis out of plumb (i.e. workpiece fills oblique), it is corresponding to need to finely tune clamping orientation of the butterfly plate workpiece on fixture so that laser
The reading relative fluctuation amount of rangefinder is no more than the surface roughness value of the clamping datum plane of butterfly plate workpiece.Adjust above
Process, only inner ring rotate, and keep outer shroud motionless, that is, butterfly plate workpiece and fixture are motionless when adjusting, and the two is with respect to clamping orientation
Adjustment be simple and feasible.
3rd, the panoramic table chuck universal fixturing of laser accurate of the present invention positioning have clamping it is reliable, it is easy to adjust,
The characteristics of adaptability is good.This fixture has moveable outside adjustment mechanism and inner face adjustment mechanism, except suitable for different rule
The three-eccentric-butterfly-valve butterfly plate of lattice, it may also be used for common butterfly plate, and different butterfly plates clamping ear's position profile slightly difference can pacify
The corresponding suitable convex supports block of dress can solve.After three eccentricity butterfly plate is assembled, two valve ears of butterfly plate are placed in fixture, it is more
Group mechanism can clamp ears and ensure butterfly plate in experimentation without departing from fixture.
4th, simple, dismounting is flexible with manufacturing for the panoramic table chuck universal fixturing of laser accurate positioning of the present invention
Feature.Designed because this fixture is based on robot and rotary table compound motion Programming Principle, therefore its structure is different from
(scalene cone used processes special oblique mould to traditional three eccentricity butterfly plate processing technology fixture such as on lathe, makes the center line of circular cone
Overlapped with the centre of gyration line of lathe, the accuracy of manufacture of fixture is difficult to ensure card very much, and cost is high), without any scalene cone
Design, therefore fixture manufacture is simple, dismounting is flexible, and cost is low.
5th, the panoramic table chuck universal fixturing of laser accurate positioning of the present invention is matched somebody with somebody using the screw thread of multigroup movable slider
Driving method is closed, is cleverly bound up by meeting stile between outside adjustment mechanism and inner face adjustment mechanism, each cunning
Block is provided with locking nut, it is achieved thereby that can both allow the vertical movement of each sliding block component to coordinate the butterfly of clamping different size
Valve setting plate, again can after the completion of clamping forced locking, ensure that the firmness of clamping.
Brief description of the drawings
Fig. 1 is the overall structure figure of the panoramic table chuck universal fixturing of laser accurate positioning;
Fig. 2 is the detail structure diagram of the panoramic table chuck universal fixturing of laser accurate positioning;
Fig. 3 is the structure chart of revolution hollow shaft;
Fig. 4 is laser beam schematic diagram;
Fig. 5 is the structure chart of three-eccentric-butterfly-valve butterfly plate;
The implication of each label is as follows in figure:
Revolution hollow shaft 1, main backstop 2, meeting stile 3, connecting bridge 4, convex supports block 5, promote mainly block 6, it is main support transverse slat 7,
Main support side plate 8, secondary threaded spindle cap nut 9, driving screw nut 10, main transverse screw 11, primary lock nut 12, secondary transverse screw 13,
Reverse locking nut 14, cap-type nut 15, two-way transmitting laser designator 17, butterfly plate 19, butterfly plate locating and machining hole 20, center lead to
Hole 22, valve ear 23, I-shaped slide rail 24, outer slide 26, inner slide 27, outside adjustment mechanism 30, inner face adjustment mechanism 40, inner ring
101st, outer shroud 102.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As Figure 1-5, the invention provides a kind of panoramic table chuck universal fixturing of laser accurate positioning, including revolution
Hollow shaft 1,2, two groups of outside adjustment mechanisms 30 of main backstop and four groups of inner face adjustment mechanisms 40.
It is described to turn round the hollow cylinder shaped that hollow shaft 1 is double-deck thimble structure, including inner ring 101 and outer shroud 102, inner ring
Connected between 101 and outer shroud 102 by bearing, i.e., inner ring 101 and outer shroud 102 can carry out relative rotary motion.Inner ring 101 and outer
The central axis of ring 102 is overlapped, and the central axis of the coincidence is referred to as to the central axis of revolution hollow shaft 1 in this patent.
Locking pin structure is provided between inner ring 101 and outer shroud 102, can be with when not locking inner ring 101, outer shroud 102
Allow inner ring 101 individually rotate, outer shroud 102 it is motionless, when inner ring 101, outer shroud 102 are locked, inner ring 101, outer shroud 102 link.
One end is fixedly connected the outer shroud 102 of the revolution hollow shaft 1 by ring flange with main backstop 2 vertically, another
The external diameter surface of revolution at end is used for the three-jaw or multi-jaw chuck for being clamped in panoramic table.
A two-way transmitting laser designator 17 is installed in the inner ring 101 of the revolution hollow shaft 1, the two-way transmitting laser
Indicator 17 can to revolution hollow shaft 1 axis hole both ends simultaneously or the beam laser beam of time division emission two, its installation position require institute
The optical axis direction for launching two beam laser beams overlaps with turning round the central axis of hollow shaft 1.
A laser range finder is also equipped with the inner ring 101 of the revolution hollow shaft 1, effect is measurement laser range finder
Installation site is to the distance of butterfly plate 19, and the centre of gyration point of measurement position of the laser range finder on butterfly plate 19 and butterfly plate 19
Have>1mm eccentric distance.Wherein, the centre of gyration point of butterfly plate 19 refers to friendship of the central axis with butterfly plate 19 for turning round hollow shaft 1
Point.The laser range finder preferably uses wireless precise laser distance measuring instrument.When inner ring 101 rotates, two-way transmitting laser designation
Device 17 and laser range finder rotate with.As shown in figure 4, middle arrow is swashing for the transmitting of two-way transmitting laser designator 17
Light beam, upper and lower two arrows represent two beam distance measuring laser beams during laser range finder spinning.
The main backstop 2 is fixed on the main support side plate of main support transverse slat 7 left and right ends by main support transverse slat 7 and two pieces
8 compositions.Tapped through hole is offered in two pieces of main support side plates 8.The medial surface of the main support transverse slat 7 is provided with about two
Parallel I-shaped slide rail 24.
The outer shroud 102 of the revolution hollow shaft 1 is fixedly connected on the lateral surface of main support transverse slat 7 by ring flange, and main
The center of support transverse slat 7 offers a central through hole 22, the central through hole 22 and the shaft end hole site of revolution hollow shaft 1
It is corresponding so that the one laser beam that two-way transmitting laser designator 17 is launched can be radiated to be added through the central through hole 22
On the butterfly plate 19 of work.
The left and right sides of two groups of outside adjustment mechanisms 30 relative centrally disposed through hole 22 respectively.Four groups of inner faces adjust machine
The periphery of the symmetrical centrally disposed through hole 22 of structure 40, wherein two groups of inner face adjustment mechanisms 40 are located at the left side of central through hole 22,
And respectively above and below the outside adjustment mechanism 30 in left side.Other two groups of inner face adjustment mechanisms 40 are located at central through hole
22 right side, and respectively above and below the outside adjustment mechanism 30 on right side.
The inner face adjustment mechanism 40 includes outer slide 26, inner slide 27, connecting bridge 4, convex supports block 5, the and of secondary threaded spindle cap nut 9
Secondary transverse screw 13.Outer slide 26 and inner slide 27 are arranged on I-shaped slide rail, and the outer slide 26 is close to main support-side
Plate 8, the inner slide 27 is close to central through hole 22;Positive stop is set at the I-shaped both ends of slide rail 24, ensures face in orbit
Move freely, and without departing from track.Through hole is offered on the outer slide 26, tapped blind hole is offered on inner slide 27.
The tapped blind hole of secondary transverse screw 13 and inner slide 27 forms screw thread and coordinated;One end of secondary transverse screw 13 is provided with
The secondary threaded spindle cap nut 9 being fixedly connected, the other end pass through the through hole of outer slide 26, and are tightened with the tapped blind hole of inner slide 27.When
When rotation time threaded spindle cap nut 9, secondary transverse screw 13 rotates with, according to Automatic manual transmission relation, outer slide 26 and inner slide
27 will relatively move along the secondary axis of transverse screw 13;Time locking screw is provided between secondary threaded spindle cap nut 9 and outer slide 26
Female (being not drawn on figure), and coordinate with secondary transverse screw 13, effect is that secondary locking nut prevents when outer slide 26 clamps workpiece
It loosens to the secondary direction of threaded spindle cap nut 9, that is, remains certain workpiece clamp clamp force.Connecting bridge 4 arranges vertically, one end and interior cunning
Block 27 is fixed, and the other end is fixed with convex supports block 5, and the convex supports block 5 is used for the inner faces contact with the valve ear 23 of butterfly plate 19, so as to press from both sides
Tight butterfly plate 19.
Convex supports block 5 is modular assembly part, its profile and the form fit of valve ear 23 of butterfly plate 19, and different butterfly plates clamp ear
Profile slightly difference in position can install corresponding suitable convex supports block 5.
One is provided between two groups of two outer slides 26 in the inner face adjustment mechanism 40 in the left side of central through hole 22
Individual meeting stile 3, two outer slides 26 are fixed together;The other two groups inner faces positioned at the right side of central through hole 22 are adjusted
A meeting stile 3 is also equipped between two outer slides 26 in complete machine structure 40, two outer slides 26 are fixedly connected on one
Rise.
The outside adjustment mechanism 30 include promote mainly block 6, main transverse screw 11, primary lock nut 12, driving screw nut 10,
Reverse locking nut 14, cap-type nut 15.
It is described to promote mainly the block that block 6 is the centre position for being arranged on meeting stile 3, promote mainly block 6 and fix company with meeting stile 3
It is connected together, both link.
Described promote mainly offers through hole on block 6, the tapped through hole of main transverse screw 11 and main support side plate 8 forms screw thread and matched somebody with somebody
Close;One end of main transverse screw 11 is provided with the driving screw nut 10 being fixedly connected, and the other end is sequentially passed through in main support side plate 8
Tapped through hole and promote mainly the through hole on block 6, and cap-type nut 15 is installed in outermost.
The cap-type nut 15 is used to prop up the butterfly plate locating and machining hole 20 on butterfly plate.Promoting mainly block 6, main support side plate 8
Between be provided with primary lock nut 12, reverse locking nut 14 is provided between block 6, cap-type nut 15 promoting mainly, primary lock spiral shell
Mother 12 and reverse locking nut 14 coordinate with main transverse screw 11 for screw thread, and effect is when cap-type nut 15 props up butterfly plate workpiece
When, block 6 is promoted mainly in the locking of primary lock nut 12 prevents it from being loosened to the direction of driving screw nut 10, and the locking of reverse locking nut 14 is promoted mainly
Block 6 prevents it from being loosened to the direction of cap-type nut 15, that is, remains certain workpiece clamp clamp force.
The operation principle of the outside adjustment mechanism 30 is:
Driving screw nut 10 is can be manually rotated, drives main transverse screw 11 by coordinating with the screw thread of main support side plate 8 to revolve
Enter, and then make to promote mainly the transverse shifting of block 6, make to promote mainly the cap-type nut 15 connected on block 6 and prop up the butterfly plate of the lateral surface of valve ear 23 and add
Work hole 20, so as to clamp butterfly plate 19.
The operation principle of the inner face adjustment mechanism 40 is:
Time threaded spindle cap nut 9 is can be manually rotated, secondary transverse screw 13 is coordinated and precession (due to outer cunning by the screw thread of outer slide 26
Block 26 is fixedly connected by meeting stile 3 with promoting mainly block 6, after block 6 is promoted mainly by outside 30 locked position of adjustment mechanism, outer slide
26 will be also at locked position state), and then promote inner slide 27 to be moved horizontally along I-shaped slide rail 24, inner slide 27 passes through
Connecting bridge 4 drives convex supports block 5 to move, and makes the inner faces contact of the inner plane of convex supports block 5 and the valve ear 23 of dish plate, so as to clamp butterfly plate
19.Four groups of inner face adjustment mechanisms 40 can be adjusted respectively according to the concrete structure of butterfly plate 19.
The working process and principle of the panoramic table chuck universal fixturing of above-mentioned laser accurate positioning are:
(1) inner ring 101 for turning round hollow shaft 1 and the position of outer shroud 102 are locked so that both link, afterwards by outer shroud 102
It is clamped on the scroll chuck of Digit Control Machine Tool, adjusts the installation position of two-way transmitting laser designator 17 so that two-way transmitting swashs
The one laser beam that optical indicator 17 is launched is radiated at panoramic table table top center just.
(2) two valve ears 23 of the butterfly plate 19 of three-eccentric-butterfly-valve are arranged on fixture.Due to the specification of three-eccentric-butterfly-valve
Differ, its spacing of valve ear 23 is also different, and fixture of the present invention can manually rotate driving screw nut 10, drives master
Transverse screw 11 makes to promote mainly the transverse shifting of block 6 by with the screw thread of main support side plate 8 coordinating and precession, makes to promote mainly on block 6
The cap-type nut 15 of connection props up the butterfly plate processing hole 20 of the lateral surface of valve ear 23, so as to clamp butterfly plate 19.It can be manually rotated afterwards secondary
Threaded spindle cap nut 9, secondary transverse screw 13 are coordinated and precession (because outer slide 26 passes through meeting stile 3 by the screw thread of outer slide 26
It is fixedly connected with promoting mainly block 6, after block 6 is promoted mainly by outside 30 locked position of adjustment mechanism, outer slide 26 will be also at locking position
Configuration state), and then promote inner slide 27 to be moved horizontally along I-shaped slide rail 24, inner slide 27 drives convex support by connecting bridge 4
Block 5 moves, and makes the inner faces contact of the inner plane of convex supports block 5 and the valve ear 23 of dish plate, so as to clamp butterfly plate 19.Four groups of inner face adjustment
Mechanism 40 can be adjusted respectively according to the concrete structure of butterfly plate 19.While regulation, two-way transmitting laser designation is also observed
Device 17 launch another one laser beam, it is ensured that after butterfly plate 19 is fixedly clamped, instruction laser beam be radiated at the butterfly plate workpiece center of circle and
Panoramic table table top center, i.e., the center of circle of butterfly plate workpiece is on the rotation axis of rotary table.
(3) inner ring 101 for turning round hollow shaft 1 and outer shroud 102 being unlocked so that inner ring 101 can individually rotate, now,
It can be manually rotated inner ring 101 1 weeks, observe the reading of laser range finder, if the reading relative fluctuation amount of laser range finder has exceeded butterfly
The surface roughness value of the clamping datum plane of plate 19, then illustrate the clamping datum plane of butterfly plate workpiece relative to its revolution
Axis out of plumb, i.e. workpiece fill oblique.At this time, it may be necessary to the clamping orientation of butterfly plate 19 is readjusted, ranging again again afterwards, until
The reading relative fluctuation amount of laser range finder is no more than the surface roughness value of the clamping datum plane of butterfly plate 19, then completes dress
Folder.
(4) inner ring 101 for turning round hollow shaft 1 and the position of outer shroud 102 are locked so that both link, and complete clamping.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as
Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right
Within the scope of it is required that.