A kind of detection device of wheel hub blank outer margin deformation amount
Technical field
The invention belongs to automobile production equipment technical field, it is mainly used in one week deflection of wheel hub blank outer rim
Measurement, identification finds one group for the mach clamping position of wheel hub on wheel hub outer edge.
Background technique
It is also more more and more urgent to the quick correct detection demand of wheel hub with the fast development of automobile market, wherein taking turns
The deformation size of the outer rim plane of echinid base is to influence the important indicator of wheel hub machining quality, therefore produced by aluminium wheels
The especially concern of producer.The deformation of wheel hub blank outer rim plane refers to the flatness error of wheel hub outer rim.Wheel hub outer rim plane is made
For mach positioning datum, if its plane deformation, may cause wheel hub in clamping cannot correct clamping, after machining
It will lead to that spoke thickness is different, the positive height of wheel rim is inconsistent, so as to cause wheel hub imbalance.Therefore, it is quite necessary to right
The outer edge surface of wheel hub is detected, and reasonable clamping position is found, and is prepared for subsequent machining, is improved the qualification of wheel hub production
Rate.
The prior art and its problems of the prior art: currently, both at home and abroad for the measurement master of wheel hub blank deformation
It to be contact type measurement and non-contact measurement.Contact type measurement is divided into manual measurement and online mechanical measurement.Non-cpntact measurement
Predominantly laser measurement.Laser measurement obtains in terms of measurement because of the advantages that its is non-contact, high-efficient with automatic measurement in high precision
To more and more applications.A kind of " the aluminium alloy wheel hub of vehicle blank deformation in line measurement side China Patent No. CN103234474A
Method and measuring device " in disclose a kind of aluminium alloy wheel hub of vehicle blank deformation in line measurement method and measuring device, provide
A kind of online aluminium alloy wheel hub of vehicle blank deformation measuring device and measurement method based on laser triangulation principle, measuring device
And measurement method can measure wheel hub blank rim faces and central axial deformation by extracting 32 characteristic points on wheel hub blank.
1) the prior art is to slide laser on one side by one side rotating wheel hub, then the laser sensor that moves linearly, only
32 characteristic points on wheel hub blank are extracted, for detecting the deformation of wheel hub blank outer rim plane, the characteristic point of acquisition is more, needs
The time wanted is longer.And the method essentially consists in goes out the biggish substandard products of wheel hub deformation respectively, does not make selection machining clamping
The work of position.And this patent is to install laser sensor using robot end be scanned wheel hub outer rim one week,
To detect wheel hub outer margin deformation amount.
2) the prior art is mainly to detect the size of the deflection of wheel hub outer rim, in order to go out wheel hub outer margin deformation amount respectively
Overproof substandard products.And this patent adds for subsequent machine primarily to choose the mach clamping position in wheel hub outer rim plane
Work is prepared.
Summary of the invention
Aiming at the problems existing in the prior art, technical problem solved by the invention is to provide outside a kind of wheel hub blank
The detection device and method of edge deflection, and mach clamping position is found on wheel hub outer edge surface, improve the balance of wheel hub
Amount improves the qualification rate of wheel hub production.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention are as follows:
A kind of detection device and method of wheel hub blank outer margin deformation amount, which is characterized in that including transmission line 1, laser position
Displacement sensor 2, mechanical arm 3, elevating mechanism 4, clamping and positioning device 5, control system;The control system includes control transmission
The corresponding control unit that line 1, laser displacement sensor 2, mechanical arm 3, clamping and positioning device 5 are run, and to laser displacement
The processing unit that 2 data measured of sensor is handled;
The clamping and positioning device 5 is located at 1 lower end of transmission line, and 5 lower end of clamping and positioning device is equipped with the elevator
Wheel hub blank is transmitted to detection station by structure 4, transmission line 1, and transmission line 1 is equipped with sensor, when sensor detects wheel hub hair
When base is located at 5 upper end of clamping and positioning device, the elevating mechanism 4, which rises, jacks up clamping and positioning device 5, the clamping and positioning device
Wheel hub blank is clamped positioning by 5;The end of mechanical arm 3 is arranged in the laser displacement sensor 2, to measure wheel hub blank
Hub edge face and central aperture edge face flatness;The mechanical arm 3 is mounted on transmission line 1 on one side, upper level transmission
The hub type information to come over obtains wheel hub outer edge radius value;Further according to wheel hub outer edge radius size, laser displacement sensing is driven
Device 2 was scanned test around wheel hub outer rim one week;After having detected, the decline of clamping and positioning device 5 resets;Processing unit is to measuring number
It is right according to judgement as a result, being transmitted to machining position by external Manipulator Transportation or transmission line 1 or scrapping station after processing
It analyzes to obtain machining clamping position best on wheel hub outer edge surface in the hub treatment unit that do not scrap, and passes through external spray painting
Robot clamping point position marks transports machining station again.
The detection device of above-mentioned wheel hub blank outer margin deformation amount, it is further characterized by the elevating mechanism is lifting
Platform.
The detection device of above-mentioned wheel hub blank outer margin deformation amount, it is further characterized by the elevating mechanism 4 includes bottom
Seat 4-1, jacking cylinder 4-2, sliding panel 4-3, sliding rail 4-4;The jacking cylinder 4-2, sliding rail 4-4 are each attached on pedestal 4-1, described
Sliding panel 4-3 is connected with jacking cylinder 4-2, and sliding panel 4-3 is connect with sliding rail 4-4;It jacks cylinder 4-2 piston rod to move up and down, band
Dynamic sliding panel 4-3 is run along sliding rail 4-4 or more.
The detection device of above-mentioned wheel hub blank outer margin deformation amount, it is further characterized by the clamping and positioning device 5 wraps
Include support frame 5-1, the duplex cylinder 5-2 that the upper end support frame 5-1 is set, two clamp arm 5-3;The swivel mount 5-1 and sliding
Plate 4-3 is connected;The flexible both ends of the duplex cylinder 5-2 are each to fix a clamp arm 5-3;It is stretched there are two being set on each clamp arm 5-3
An idler wheel 5-5 is respectively provided on contracting bar 5-4, each telescopic rod 5-4, four rolling 5-5 constitutes four vertex of a rectangle, square
Shape central point is overlapped with the center of circle of the circumference of 3 end laser displacement sensor of mechanical arm, 2 scanning motion;In duplex cylinder 5-2
Drive under, four telescopic rod 5-4 are supported wheel hub blank from wheel hub blank bottom after mutually furthering;Four rolling 5-5
After furthering from wheel hub blank outer circle will further after by wheel hub blank 6 carry out centralized positioning.
Compared with prior art, the present invention its remarkable advantage:
(1) device of on-line checking wheel hub deflection of the present invention, it is all that system can automaticly inspect the entire wheel rim outer rim of search
Be possibly used for mach clamping position point, find one group it is most suitable can be used for machining clamping wheel rim three points, energy
Improve the quality of wheel hub production and processing.
(2) device of on-line checking wheel hub blank deflection of the invention, versatility is good, can be to the wheel of wider size range
Hub carries out on-line checking.
(3) device of on-line checking wheel hub blank of the invention deformation, measuring accuracy is high, and high degree of automation, can expire
Sufficient Flexible production.
(4) device of on-line checking wheel hub blank of the invention deformation, under the drive of duplex cylinder, four telescopic rod phases
Be supported after mutually furthering from wheel hub blank bottom, four rolling further after from wheel hub blank outer circle will further after by wheel hub blank
Centralized positioning, accurate positioning are carried out, and can avoid the scuffing to wheel hub blank outer circle.
Detailed description of the invention
Fig. 1 is the overall axonometric drawing of the detection device of the wheel hub blank outer margin deformation amount of the embodiment of the present invention.
Fig. 2 is the clamping and positioning device and elevating mechanism connection schematic diagram of the embodiment of the present invention.
Fig. 3 is a type of wheel hub structure schematic diagram of the embodiment of the present invention.
Specific embodiment
In order to illustrate technical solution of the present invention and technical purpose, with reference to the accompanying drawing and specific embodiment is the present invention
It is further to introduce.
In conjunction with Fig. 1-Fig. 3, a kind of detection device of wheel hub blank outer margin deformation amount of the invention, including transmission line 1, Zhi Ji
Optical displacement sensor 2, mechanical arm 3, elevating mechanism 4, clamping and positioning device 5, control system;The control system includes control
The corresponding control unit that transmission line 1, laser displacement sensor 2, mechanical arm 3, elevating mechanism 4, clamping and positioning device 5 are run,
And to the processing unit that 2 data measured of laser displacement sensor is handled;
The clamping and positioning device 5 is located at 1 lower end of transmission line, and 5 lower end of clamping and positioning device is equipped with elevating mechanism 4,
Wheel hub blank is transmitted to detection station by transmission line 1, and transmission line 1 is equipped with sensor, when sensor detects wheel hub blank position
When 5 upper end of clamping and positioning device, elevating mechanism 4 rises, and wheel hub blank is clamped tightening position;The laser displacement sensor 2
The end of mechanical arm 3 is set, to measure the hub edge face of wheel hub blank and the flatness in central aperture edge face;It is described
Mechanical arm 3 is mounted on transmission line 1 on one side, to drive laser displacement sensor 2 to be scanned test around wheel hub outer rim one week;
After having detected, the decline of clamping and positioning device 5 resets;After processing unit is to data measured processing, according to judgement as a result, passing through outside
Manipulator Transportation or transmission line 1 are transmitted to machining position or scrap station, and the hub treatment unit that do not scrap is analyzed to obtain
Best machining clamping position on wheel hub outer edge surface, and marked by external paint-spray robot clamping point position.
In some embodiments, the elevating mechanism is lifting platform.
In other embodiment, in conjunction with Fig. 3, the elevating mechanism includes pedestal 4-1, jacking cylinder 4-2, sliding panel
4-3, sliding rail 4-4;The jacking cylinder 4-2, sliding rail 4-4 are each attached on pedestal 4-1, the sliding panel 4-3 and jacking cylinder 4-2 phase
Even, and sliding panel 4-3 is connect with sliding rail 4-4;It jacks cylinder 4-2 piston rod to move up and down, drives sliding panel 4-3 along sliding rail 4-4
Lower operation;Clamping and positioning device 5 and sliding panel 4-3 are connected.
As an implementation, the clamping and positioning device 5 includes support frame 5-1, the upper end support frame 5-1 is arranged in
Duplex cylinder 5-2, two clamp arm 5-3;The flexible both ends of the duplex cylinder 5-2 are each to fix a clamp arm 5-3;In each clamp arm
5-3 is set there are two telescopic rod 5-4, and an idler wheel 5-5 is respectively provided on each telescopic rod 5-4, and four rolling 5-5 constitutes a rectangle
Four vertex, rectangular centre point is overlapped with mechanical arm 3 around the center of circle that wheel hub outer rim moves in a circle;In duplex cylinder 5-2
Drive under, four telescopic rod 5-4 are supported wheel hub blank 6 from 6 bottom of wheel hub blank after mutually furthering;Four rolling 5-
5 further after from 6 outer circle of wheel hub blank will further after by wheel hub blank 6 carry out centralized positioning.Four rolling 5-5 can relativeatoeterahub 6
Outer circle rotation, can avoid the scuffing to 6 outer circle of wheel hub blank, avoid influencing measuring accuracy.
Further, new pine SCR5 cooperation robot can be selected in the mechanical arm 3, loads 5 kilograms, weight 33.8 thousand
Gram, working radius 800mm, repetitive positioning accuracy ± 0.02mm, freedom degree 7.Mechanical arm end is installed by laser displacement sensing
Device 2, the hub type data that can be transmitted by upper level, obtains hub size size, laser displacement sensor 2 can be driven around wheel
Hub outer edge run-down.
Further, it is available outer when the laser displacement sensor 2 scans 6 edge surface 6-1 of wheel hub blank mono- week
One week plane of edge surface is beated curve, for qualified blank, finds three separately 120 according to one week plane curve of beating
It spends and the smallest point of plane deformation amount is used as machining fixture clamping point, and record the position of three points with external paint-spray robot
It sets, machining place value is transmitted to by external Manipulator Transportation or transmission line 1.When machine operations, fill machine tool fixture just
Three clamping points that folder front marks, so that the machining accuracy highest of wheel hub blank, wheel hub balance performance are best.
The device of on-line checking wheel hub blank deformation of the invention, control system are equipped with control transmission line 1, branch laser displacement
Sensor 2, mechanical arm 3, elevating mechanism 4, the corresponding control unit of clamping and positioning device 5;When work, transmission line 1 is by wheel hub hair
Base 6 is transported to 5 upper end of clamping and positioning device, is driven by duplex cylinder 5-2, drives four rolling 5-5 clamping wheel hub blank 6;
The hub type information that control system is transmitted by upper level, control mechanical arm 3 drive sensor 2 to sweep around wheel hub outer rim
It retouches one week.The hub edge face 6-1 flatness of the detection measurement wheel hub blank 6 of laser displacement sensor 2;Through the processing unit with number
It is compared according to the setting value in library, after being determined as qualification, re-inspection searches three intervals 120 degree, the smallest clamping of deflection
Point, external paint-spray robot spray painting three points of label, is transmitted to finally by 1 outside Manipulator Transportation of transmission line or transmission line 1
Machine position;Determine it is unqualified after, be transmitted to by 1 outside Manipulator Transportation of transmission line or transmission line 1 and scrap station.It has detected
Afterwards, the decline of clamping and positioning device 5 resets.
The device of on-line checking wheel hub blank deformation of the invention, versatility is good, can be 13-24 inches to diameter, wheel is wide
The edge plane degree and central aperture edge flatness of 4-12 inches of aluminum alloy hub blanks are detected.
1, the present invention uses the deflection of machine vision metrology wheel hub outer rim, being capable of automatic non-cpntact measurement wheel hub outer rim
Deflection, improve operating efficiency, reduce human cost.
2, the present invention drives sensor to be scanned wheel hub outer rim one week using robot, can acquire wheel hub outer rim one
The data in week, data are complete, improve reliability.
3, one week data of wheel hub outer rim of present invention processing acquisition find machining on one group of wheel hub outer edge surface and are most suitable for
Three points of clamping, improve the mach precision of wheel hub, are conducive to the balance and the quality of production that improve wheel hub.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention in any form, and appoints
What those skilled in the art, without departing from the scope of the present invention, according to the technical essence of the invention to
Any simple modification made by upper embodiment, equivalent variations and modification, still fall within the technical solution of claims of the present invention
Protection scope in.