CN203908499U - A wheel hub position degree detection apparatus - Google Patents
A wheel hub position degree detection apparatus Download PDFInfo
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- CN203908499U CN203908499U CN201420258290.5U CN201420258290U CN203908499U CN 203908499 U CN203908499 U CN 203908499U CN 201420258290 U CN201420258290 U CN 201420258290U CN 203908499 U CN203908499 U CN 203908499U
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- wheel hub
- pneumatic cylinder
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- hub
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Abstract
The utility model discloses a wheel hub position degree detection apparatus comprising a wheel hub dynamic balancing testing machine. A locking device is arranged on a main shaft of the testing machine. The position above a rotation track of an installing hole of a to-be-tested wheel hub is provided with a visual sense inductor used for carrying out photographing of the installing hole. The wheel hub position degree detection apparatus also comprises an industrial computer used for recording and calculating coordinate figures of the installing hole detected by the visual sense inductor and a main shaft servo controller connected with the industrial computer and used for controlling a servo motor of the main shaft of the testing machine. The locking device comprises a power mechanism and a locking mechanism. The wheel hub position degree detection apparatus of the utility model is simple in structure, and can carry out online and automatic detection on the wheel hub. The measurement data is accurate and the operation is highly efficiently.
Description
Technical field
The utility model relates to automobile manufacturing field, specially refers to a kind of hub positions degree pick-up unit.
Background technology
In past 10 years, China's automobile industry presents explosive growth, and at present China has leapt to second-biggest-in-the-world automobile consumption state and the third-largest automobile production state.As the wheel hub of automobile component, be the rigid body of support tire, and coordinate formation wheel with tire.
As the higher security part of a kind of requirement, the rideability of wheel hub and vehicle has great contacting, in the process of moving, wheel hub is except bearing normal pressure, also bearing because of vehicle launch, the reciprocation of moment of torsion when braking, and irregular stressed from all directions of travel middle turning, impact etc.The wheel hub of High Rotation Speed, has direct impact for the security of vehicle, stationarity, operability etc.
And at present, also lower to the detection automaticity of automotive hub, and accuracy of detection need to improve.
As shown in Figure 1, hub positions degree refers to each mounting hole 1 on wheel hub position degree with respect to wheel hub center 2.In figure, dotted line roundlet 11 is the ideal position in four holes of wheel hub, but not all wheel hub is all very perfect, so the position of solid line roundlet 12 in the drawings likely appears in the mounting hole of some wheel hub.The distance in two centers of circle of dotted line roundlet 11 and solid line roundlet 12 is exactly the position degree in this hole, and in all mounting holes of wheel hub, the position degree in the hole of position degree maximum is exactly the position degree of this wheel hub.
Utility model content
Primary and foremost purpose of the present utility model is to provide a kind of hub positions degree pick-up unit.
To achieve these goals, a kind of hub positions degree of the utility model pick-up unit, it comprises on wheel hub dynamic balancing testing machine, testing machine main shaft and is provided with the locking device for locating and lock wheel hub to be tested; The mounting hole rotary motion trace top of wheel hub to be tested is provided with the visual response device for mounting hole is taken pictures; For recording and computation vision inductor is surveyed the industrial computer of mounting hole coordinate figure; Be connected with industrial computer and for the Spindle servo systems device of Control experiment machine spindle servo electric machine.
Further, described industrial computer is connected with described visual response device by switch; Industrial computer successively order is connected with described Spindle servo systems device with ethernet module by switch.
Further, described locking device comprises actuating unit and latch mechanism; Described actuating unit comprises pneumatic cylinder and is respectively upper chamber in pneumatic cylinder and lower chamber provides upper chamber air supply channel and the lower chamber air supply channel of gas, and latch mechanism comprises locating shaft and some latch segments; The lower end of described locating shaft is arranged in described pneumatic cylinder, and pneumatic cylinder is separated into the upper and lower air chamber of mutual isolation; The top of locating shaft is round table-like structure, and some described latch segments are arranged on described round platform lateral wall place, and circumferentially uniform along it.
Further, described actuating unit comprises base and be arranged on the locating sleeve on base, and described locating sleeve comprises top localization part and lower cylinder part, and described pneumatic cylinder is made up of the bottom of base and locating sleeve.
Further, described lower chamber air supply channel is for being arranged on base center, and the through hole that axially runs through base along it, and described upper chamber air supply channel comprises: be arranged on some small through hole in base and be communicated with it be arranged on the air hole in locating sleeve.
Further, described locating shaft comprises piston portion, axis body part and round platform part, and described part and round platform part are separately positioned on the two ends of axis body part, and axis body part is arranged in the localization part of locating sleeve, and can move up and down therein.The external diameter of piston portion and locating sleeve bottom cylinder diameter of bore match, and can be used as piston and move up and down in pneumatic cylinder, and pneumatic cylinder is separated into upper and lower two air chambers.
Further, described locking device also comprises resetting-mechanism; Described resetting-mechanism comprises split chuck, spring mounting seat, spring, transition disc and supporting disk; Described split chuck is fixed on locating sleeve top, and described spring mounting seat is fixed on split chuck, and described spring one end is arranged in spring mounting seat, and the other end is fixedly connected with latch segment; Described transition disc and supporting disk are fixedly installed on split chuck successively.
Further, described latch mechanism also comprises the guide cover that is arranged on locating shaft top.
The utility model hub positions degree structure of the detecting device is simple, can carry out online wheel hub, automatically detect, and measurement data is accurate, and operation is efficient.
Brief description of the drawings
Fig. 1 is hub positions degree schematic diagram;
Fig. 2 is hub positions degree detection method process flow diagram;
Fig. 3 is hub positions degree structure of the detecting device figure;
Fig. 4 is locking device structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 3, a kind of hub positions degree pick-up unit, it comprises on wheel hub dynamic balancing testing machine, testing machine main shaft and is provided with the locking device for locating and lock wheel hub to be tested; The mounting hole rotary motion trace top of wheel hub to be tested is provided with the visual response device for mounting hole is taken pictures; For recording and computation vision inductor is surveyed the industrial computer of mounting hole coordinate figure; Be connected with industrial computer and for the Spindle servo systems device of Control experiment machine spindle servo electric machine.
Industrial computer is connected with visual response device by switch; Industrial computer successively order is connected with Spindle servo systems device with ethernet module by switch.
As shown in Figure 4, locking device comprises: actuating unit, latch mechanism, resetting-mechanism; Wherein, actuating unit comprises base 1 and locating sleeve 2; Latch mechanism comprises: latch segment 8, locating shaft 9, guide cover 14 and pushing block 20; Resetting-mechanism comprises split chuck 3, spring mounting seat 4, spring 5, transition disc 6, supporting disk 7.Wherein actuating unit is used to latch mechanism that power is provided, and latch mechanism is for locking wheel hub to be tested, and resetting-mechanism helps latch mechanism to reset after wheel hub test.
Actuating unit adopts gas as power source, and its chief component is pneumatic cylinder and two air supply channel.Wherein, pneumatic cylinder 204 is surrounded jointly by the bottom of base 1 and locating sleeve 2, and the piston portion 903 that pneumatic cylinder 204 is positioned on axle on 9 is separated into upper chamber and lower chamber, and two air supply channels are respectively upper and lower cylinder body air feed.
In the center of base 1, be provided with the through hole 101 that axially runs through base 1 along it, be lower chamber air supply channel, the axle of this through hole preferably overlaps with the axle of base.Also being provided with some small through hole 102 that move towards setting along base side wall at base 1, is a part for upper chamber air supply channel.Small through hole 102 comprises vertical section and horizontal segment, and two sections are interconnected, and its vertical section is positioned at the sidewall 103 of base 1 cylindrical section, and is uniformly arranged on through hole 101 with one heart, and radius is greater than on the circumference of through hole 101.In the upper shoulder that is arranged on base 1 of its horizontal segment.
Locating sleeve 2 is by dismountable base 1 top that is fixed on of bolt, and locating sleeve 2 comprises localization part and cylinder portion, and wherein localization part is for the location of the axis of guide 9, and cylinder portion is for forming pneumatic cylinder 204 with base 1.Localization part and cylinder portion are respectively two cylinder-like structures, its top cylinder, conventionally the diameter of bore of localization part is less than bottom cylinder, it is cylinder portion diameter of bore, top cylinder its two ends be also provided with on two locating sleeves that protrude from cylinder outer wall, take on 201 and locating sleeve under take on 203, on locating sleeve, take on 201 for resetting-mechanism is installed.Under locating sleeve, take on 203 for being connected with bottom cylinder.On bottom cylinder endoporus and base, shoulder 104 forms pneumatic cylinder 204.In the cylinder side wall of bottom, be also provided with corresponding one by one with some small through hole 102 of base 1 respectively, and coupled logical air hole 202; Air hole 202 and the common composition upper chamber of small through hole 102 air supply channel.The effect of plug 16 is to block processing technology hole on positioning seat 2, in order to avoid the gas leak in pneumatic cylinder 204.
Latch mechanism comprises pushing block 20 and the latch segment 8 around locating shaft 9, portion disposed thereon and is arranged on the guide cover 14 on locating shaft 9 tops.Locating shaft 9 comprises piston portion 903, axis body part and round platform part 901, piston portion and round platform part are separately positioned on the two ends of axis body part, the diameter of bore of the top cylinder of axis body section diameter and locating sleeve 2 matches, be arranged in the top cylinder of locating sleeve 2, and can move up and down therein.The external diameter of piston portion 903 and locating sleeve bottom cylinder diameter of bore match, and can be used as piston and move up and down in pneumatic cylinder 204, and pneumatic cylinder 204 is separated into upper and lower two air chambers, and upper chamber and lower chamber are isolated mutually.Round platform part 901 is stretched out by the upper end of locating sleeve 2.In the time that locating shaft 9 moves upward, in piston portion 903 is assemblied in pneumatic cylinder 204, and while being positioned at its smallest limit position, the upper end of axis body part 902 is preferably concordant with the upper surface of positioning seat 2.
Outside in round platform part 901 is all fixedly installed latch segment 8 along the outside that is circumferentially evenly equipped with 20,8 pushing blocks 20 of 8 pushing blocks, and pushing block 20 also can be structure as a whole with latch segment 8.The inside surface of pushing block 20 is the cambered surface fitting with round platform sidewall, and its outer wall bottom is uniformly distributed with 8 blind holes along the circumference, and these blind holes are the mounting hole on pushing block 20 as resetting-mechanism medi-spring 5.Guide cover 14 is arranged on the top of the axis of guide 9, is used for guiding the first location of wheel hub.The axial force that the conical surface of the frustum cone structure of locating shaft can push away cylinder top locating shaft 9 changes into radial force; For promoting along being circumferentially distributed on its eight latch segments 8 around; And by latch segment 8 swellings.
Resetting-mechanism has its locking state to return to relaxed state for auxiliary latch mechanism, and this mechanism comprises split chuck 3, spring mounting seat 4, spring 5, transition disc 6, supporting disk 7.Split chuck 3 is for to have certain thickness at its axial direction, and radial section is circular ring type, and its external diameter is slightly less than and on cylinder, takes on external diameter, and on its sidewall along being circumferentially evenly equipped with 8 installation through holes for mounting spring mount pad 4.In the dismountable installation through hole that is fixedly installed on split chuck 3 of spring mounting seat 4.One end of 8 springs 5 is separately positioned in 8 mounting holes of pushing block 20 lower ends settings, and the other end inserts respectively in the spring mounting seat 4 being arranged in split chuck 3, and compresses location by spring mounting seat 4.
When use, locking device is fixedly installed on the main shaft of wheel hub dynamic balancing testing machine, fixing rear locking device can be with the rotation of main shaft.Wheel hub to be tested is arranged on supporting disk 7, and the installed surface of wheel hub contacts with the upper surface of supporting disk 7.And by guide cover 14 Primary Location.Then, by through hole 101, be that lower chamber air supply channel is inflated in the lower chamber of pneumatic cylinder 204, locating shaft 9 moves up under the thrusting action of gas, the round platform part 903 of locating shaft 9 upper ends moves upward, the push block 20 and the latch segment 8 that are arranged on its outside radially outwards move under the pushing tow of round platform part 903, by wheel hub swelling to be tested.Wheel hub after swelling can, with the rotation of main shaft, carry out dynamic balancing measurement.After being completed, stop to lower chamber air feed, transfer to its small through hole 102 around, it is upper chamber air supply channel air feed, gas enters into the upper cylinder body of pneumatic cylinder 204 through small through hole 102 and air hole 202, in upper chamber, under the effect of gas, locating shaft 9 moves downward, and round platform part 903 and the pushing block 20 of locating shaft are separated from, pushing block 20 and latch segment 8 reset under the effect of spring 5, and wheel hub is released.
After wheel hub to be tested is locked, industrial computer is by Spindle servo systems device control spindle servo electric machine slow circumvolve main shaft, after arbitrary mounting hole enters in the surveyed area of visual response device, visual response device is recorded the coordinate figure of these three positions of mounting hole central point, industrial computer calculates the coordinate figure at wheel hub center, and then calculating the real radius of this mounting hole central point, the difference of real radius and desirable radius is the position degree of this mounting hole.In the position degree of all mounting holes, maximal value is the position degree of this wheel hub.
As shown in Figure 2, possessing measuring process comprises:
1) on wheel hub dynamic balancing testing machine main shaft, be provided with locking device, wheel hub to be tested is arranged on locking device, locking device is by described wheel hub positioning and locking to be tested;
2) rotary main shaft at a slow speed, vision sensor is taken pictures continuously, and judges whether any mounting hole of wheel hub enters surveyed area (FOV) and arrive predefined ready position;
3) any mounting hole arrives after surveyed area (FOV) ready position, stop main shaft rotation, vision sensor is treated this mounting hole of test wheel hub and is taken pictures, and records primary importance and the size thereof of this mounting hole in vision sensor surveyed area coordinate system; Rotary main shaft set angle, records the second place and the size thereof of this mounting hole in vision sensor surveyed area coordinate system; Rotary main shaft set angle again, records three position and the size thereof of this mounting hole in vision sensor surveyed area coordinate system;
4) calculate the coordinate figure at wheel hub center in the center point coordinate value of primary importance, the second place and the 3rd position according to mounting hole that step 3) is surveyed; Specific practice is any two points line in the central point recording for three times, asks the perpendicular bisector of this line segment, then gets another 2 lines and try to achieve another perpendicular bisector, and the coordinate figure of the intersection point of two perpendicular bisectors is wheel hub centre coordinate value;
5) calculate the actual range of wheel hub center and the described mounting hole central point of arbitrary position in primary importance, the second place and the 3rd position.
Calculate behind the center of wheel hub, we can calculate the distance at Dao Cikong center, wheel hub center, this distance and the distance at the Yu Kong center, desirable wheel hub center of prior input are compared, again in conjunction with wheel hub centre coordinate, the position of perfect apertures when we can draw the second place shown in upper figure, and calculate the centre coordinate of this perfect apertures, due to the central authorities of the second place in sensor surveyed area, therefore we,, detection position due to this second place, learn after the ideal coordinates of center, hole.The difference of actual range and theoretical is the position degree of described mounting hole.
Four holes of wheel hub are rotated to the centre coordinate that detects each hole of asking to detection position by sensor successively, then compare with the center of perfect apertures, retain the offset distance in hole that departs from perfect apertures maximum, this distance is exactly our required hub positions degree.
Below only described by reference to the accompanying drawings several preferred embodiments of the application, but the application is not limited to this, every those of ordinary skill in the art are not departing under the application's spirit, and any improvement and/or the distortion made all belong to the application's protection domain.
Claims (7)
1. a hub positions degree pick-up unit, is characterized in that, it comprises on wheel hub dynamic balancing testing machine, testing machine main shaft and is provided with the locking device for locating and lock wheel hub to be tested; The mounting hole rotary motion trace top of wheel hub to be tested is provided with the visual response device for mounting hole is taken pictures; For recording and computation vision inductor is surveyed the industrial computer of mounting hole coordinate figure; Be connected with industrial computer and for the Spindle servo systems device of Control experiment machine spindle servo electric machine; Described locking device comprises actuating unit and latch mechanism; Described actuating unit comprises pneumatic cylinder and is respectively upper chamber in pneumatic cylinder and lower chamber provides upper chamber air supply channel and the lower chamber air supply channel of gas, and latch mechanism comprises locating shaft and some latch segments; The lower end of described locating shaft is arranged in described pneumatic cylinder, and pneumatic cylinder is separated into the upper and lower air chamber of mutual isolation; The top of locating shaft is round table-like structure, and some described latch segments are arranged on described round platform lateral wall place, and circumferentially uniform along it.
2. hub positions degree pick-up unit as claimed in claim 1, is characterized in that, described industrial computer is connected with described visual response device by switch; Industrial computer successively order is connected with described Spindle servo systems device with ethernet module by switch.
3. hub positions degree pick-up unit as claimed in claim 1, it is characterized in that, described actuating unit comprises base and be arranged on the locating sleeve on base, and described locating sleeve comprises top localization part and lower cylinder part, and described pneumatic cylinder is made up of the bottom of base and locating sleeve.
4. hub positions degree pick-up unit as claimed in claim 3, it is characterized in that, described lower chamber air supply channel is for being arranged on base center, and the through hole that axially runs through base along it, described upper chamber air supply channel comprises: be arranged on some small through hole in base and be communicated with it be arranged on the air hole in locating sleeve.
5. hub positions degree pick-up unit as claimed in claim 1, it is characterized in that, described locating shaft comprises piston portion, axis body part and round platform part, described part and round platform part are separately positioned on the two ends of axis body part, axis body part is arranged in the localization part of locating sleeve, and can move up and down therein; The external diameter of piston portion and locating sleeve bottom cylinder diameter of bore match, and can be used as piston and move up and down in pneumatic cylinder, and pneumatic cylinder is separated into upper and lower two air chambers.
6. hub positions degree pick-up unit as claimed in claim 1, is characterized in that, described locking device also comprises resetting-mechanism; Described resetting-mechanism comprises split chuck, spring mounting seat, spring, transition disc and supporting disk; Described split chuck is fixed on locating sleeve top, and described spring mounting seat is fixed on split chuck, and described spring one end is arranged in spring mounting seat, and the other end is fixedly connected with latch segment; Described transition disc and supporting disk are fixedly installed on split chuck successively.
7. hub positions degree pick-up unit as claimed in claim 1, is characterized in that, described latch mechanism also comprises the guide cover that is arranged on locating shaft top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258290.5U CN203908499U (en) | 2014-05-20 | 2014-05-20 | A wheel hub position degree detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258290.5U CN203908499U (en) | 2014-05-20 | 2014-05-20 | A wheel hub position degree detection apparatus |
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| Publication Number | Publication Date |
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| CN203908499U true CN203908499U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258290.5U Expired - Fee Related CN203908499U (en) | 2014-05-20 | 2014-05-20 | A wheel hub position degree detection apparatus |
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| CN (1) | CN203908499U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325205A (en) * | 2016-09-20 | 2017-01-11 | 图灵视控（北京）科技有限公司 | Wheel hub mounting hole flexible and automatic machining system based on machine vision |
| CN106624025A (en) * | 2016-09-30 | 2017-05-10 | 图灵视控（北京）科技有限公司 | Intelligent flexible machining system and detecting system based on machine vision |
| CN107014302A (en) * | 2017-05-22 | 2017-08-04 | 安徽工业大学 | A kind of scaling method of train wheel wheelboss inner hole diameter laser measurement sensor position |
| CN110599536A (en) * | 2018-05-25 | 2019-12-20 | 中国科学院宁波材料技术与工程研究所 | Vision-based automobile hub positioning method |
| CN110749285A (en) * | 2018-07-24 | 2020-02-04 | 现代自动车株式会社 | Gear inspection device and gear inspection method using same |
-
2014
- 2014-05-20 CN CN201420258290.5U patent/CN203908499U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325205A (en) * | 2016-09-20 | 2017-01-11 | 图灵视控（北京）科技有限公司 | Wheel hub mounting hole flexible and automatic machining system based on machine vision |
| CN106325205B (en) * | 2016-09-20 | 2019-01-25 | 图灵视控（北京）科技有限公司 | A kind of hub installing hole flexibility automatic processing system based on machine vision |
| CN106624025A (en) * | 2016-09-30 | 2017-05-10 | 图灵视控（北京）科技有限公司 | Intelligent flexible machining system and detecting system based on machine vision |
| CN106624025B (en) * | 2016-09-30 | 2018-04-27 | 图灵视控（北京）科技有限公司 | Intelligent flexible system of processing and detecting system based on machine vision |
| CN107014302A (en) * | 2017-05-22 | 2017-08-04 | 安徽工业大学 | A kind of scaling method of train wheel wheelboss inner hole diameter laser measurement sensor position |
| CN107014302B (en) * | 2017-05-22 | 2019-03-22 | 安徽工业大学 | A kind of scaling method of train wheel wheelboss inner hole diameter laser measurement sensor position |
| CN110599536A (en) * | 2018-05-25 | 2019-12-20 | 中国科学院宁波材料技术与工程研究所 | Vision-based automobile hub positioning method |
| CN110749285A (en) * | 2018-07-24 | 2020-02-04 | 现代自动车株式会社 | Gear inspection device and gear inspection method using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190520 |