CN201170723Y

CN201170723Y - A vehicle wheel detection device based on CCD image technology

Info

Publication number: CN201170723Y
Application number: CNU2007203030911U
Authority: CN
Inventors: 徐新民
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2008-12-24
Anticipated expiration: 2017-12-07

Abstract

The utility model discloses a vehicle hub detection device based on CCD image technology, which comprises a base, on which a hub tray with a lifting mechanism and a clamp are arranged, the hub detachment plate is arranged with the clamp as the center, and a pneumatic clamping part is arranged on the top of the clamp , a ring light source is provided directly above the fixture, a camera is provided directly above the ring light source, and the camera is connected to the data controller through a data line. The vehicle hub detection device of the utility model adopts the image recognition technology, eliminates the positioning error caused by the difference between the positioning reference and the detection reference, and ensures the detection accuracy.

Description

A kind of vehicle hub pick-up unit based on the ccd image technology

Technical field

The utility model relates to a kind of vehicle detection instrument, relates in particular to a kind of vehicle hub pick-up unit based on the ccd image technology.

Background technology

The crudy of vehicle hub is directly connected to the security and the comfortableness of high vehicle speeds, and boss bolt bore dia, adjacent bolt hole distance, pitch diameter (PCD) value are to estimate the major parameter of aluminium alloy wheel hub quality.

At present, the general measurement of adopting three coordinate measuring machine to finish boss bolt bore dia, adjacent bolt hole distance etc., but the price of three coordinate measuring machine costliness and make it be difficult to popularize to the high request of operating personnel and environment, and manually-operated is also adopted in the mounting or dismounting of aluminium alloy wheel hub substantially, cause the location accurate inadequately, complicated operation, detection efficiency is low.

Chinese patent 200520102823.1 discloses a kind of vehicle hub machines, it comprises base, measuring head, wheel hub pallet, data processing controller, it is characterized in that: rotating mechanism is on base, the wheel hub pallet is center arrangement with the rotating mechanism, and be connected with base, the top of rotating mechanism is a cone axis, and has the pneumatic pinch part, and the wheel hub pallet has an elevating mechanism; Measuring head moves in the base chute, and the footpath jump set sensor on the measuring head is being connected servomotor with end jump set sensor by screw mandrel, and slides in linear slide rail, contacts up to the tested position of measuring head and wheel hub.The vehicle hub machines accuracy of detection of this patent disclosure is low, operator quality is required high.

Summary of the invention

The utility model provides that a kind of detection is quick, efficient is high, and testing result is accurate, and environment and operating personnel are required the low vehicle hub pick-up unit based on the ccd image technology.

A kind of vehicle hub pick-up unit based on the ccd image technology, comprise base, base is provided with the wheel hub pallet and the anchor clamps of band hoisting gear, the wheel hub disk stripping is center arrangement with anchor clamps, the anchor clamps top is provided with the pneumatic pinch part, be provided with annular light source directly over the anchor clamps, be provided with camera directly over the annular light source, camera is connected with recording controller by data line.

The wheel hub pallet is provided with the wheel hub locating piece, when being used to detect wheel hub, wheel hub is positioned on the wheel hub pallet, makes that the wheel hub location is convenient.

Hoisting gear is a cylinder, and an end is fixed on the base, and it is can be vertically flexible up and down that the other end is fixed in the lower surface of wheel hub pallet, adjusts wheel hub and detect height.

Base is provided with the driving mechanism of adjusting the camera height, and driving mechanism is made up of motor, screw mandrel, slide bar and crossbeam, and camera is fixed in an end of crossbeam, and the crossbeam center section is placed on the slide bar, and the other end is driven by the screw mandrel that an end is connected with motor.

The vehicle hub pick-up unit based on the ccd image technology that the utility model provides adopts image recognition technology, has eliminated the positioning error of positioning reference and detection reference generation inequality, has guaranteed accuracy of detection.

The utility model vehicle hub pick-up unit mounting or dismounting wheel hub is automatically finished, need not manual intervention, and camera moves with the wheel hub location and all adopts independent closed-loop control, and the each point position control accuracy can reach below 5 microns, has eliminated the data interference.

Description of drawings

Fig. 1 is the structural representation of the utility model vehicle hub pick-up unit.

Embodiment

As shown in Figure 1, a kind of vehicle hub pick-up unit based on the ccd image technology, comprise base 1, base 1 is provided with the wheel hub pallet 4 and the anchor clamps 3 of band hoisting gear, described hoisting gear is a

cylinder

2,2 at least two in cylinder, and an end vertical fixing of cylinder 2 is on base 1, other end vertical fixing makes the wheel hub pallet be parallel to surface level in the lower surface of wheel hub pallet 4.

The lower surface of base 1 is provided with several balancing legs, and balancing leg is conveniently steadily put pick-up unit more than at least 3.

Wheel hub pallet 4 is a center arrangement with anchor clamps 3, and wheel hub pallet 4 is provided with the adjustable locating piece 14 of distance, pre-determined bit wheel hub when being used to detect.

Anchor clamps 3 one end vertical fixing are on base 1, and the other end is a truncated cone, is provided with the multijaw telescoping mechanism in the cone, and the top is provided with the pneumatic pinch part, and its underpart cooperates with clamping or unclamps the wheel hub center pit with the pneumatic pinch part at top.

Base 1 is provided with the back timber 9 of vertical fixing in base 1, and back timber 9 is fixed with annular light source 5 by connecting rod, annular light source 5 be positioned at anchor clamps 3 directly over, annular light source 5 adopts well-chosen LED lamp, sends uniform light.

The top of back timber 9 is provided with motor 11, be fixed with vertical screw mandrel 10 and slide bar 8 on the back timber 9 of motor 11 belows, motor 11 belows link to each other with screw mandrel 10, are with horizontal gird 7 on the slide bar 8, crossbeam 7 one ends be provided with screw, screw mandrel 10 passes screw and drives crossbeam 7 and moves up and down.

Crossbeam 7 other ends be fixed with camera 6 (the integrated company limited of Hangzhou safe picture system difficult to understand, AT-MVC3000), camera 6 be positioned at annular light source 6 directly over.When motor 11 work, drive screw mandrel 10 and rotate, thereby screw mandrel 10 drives crossbeam 7 one ends, crossbeam 7 moves up and down along slide bar 8, thereby adjusts the height of camera 6.

Camera 6 is connected with recording controller 13 by data line, and recording controller 13 is mainly used in the data that analyzing and processing camera 6 is gathered.

Vehicle hub pick-up unit principle of work of the present utility model is as follows:

After aluminium alloy wheel hub 15 rolls off the production line from production line, it is lain in a horizontal plane on the wheel hub pallet 4 of pick-up unit, the wheel hub outer circumference surface is close on the adjustable locating piece 14 of distance, finishes pre-determined bit;

By hoisting gear wheel hub is descended, the wheel hub center pit is infinitely near anchor clamps 3, and the truncated cone at anchor clamps 3 tops guiding aluminium alloy wheel hub 15 is finished the accurate location on pick-up unit, clamps tested aluminium alloy wheel hub 15 with the pneumatic pinch part again;

Camera 6 drives by motor 11 and constantly adjusts height, obtains the best and takes behind the hub installing hole image clearly, finishes the data acquisition process analytical work by data processing controller 13 at last.

Claims

1. A vehicle hub detection device based on CCD image technology, comprising a base (1), the base (1) is provided with a hub tray (4) and a clamp (3) with a lifting mechanism, and the hub is removed from the disc (4) with the clamp (3) is arranged in the center, and the top of the fixture (3) is provided with a pneumatic clamping part, which is characterized in that: a ring light source (5) is provided directly above the fixture (3), and a camera (6) is provided directly above the ring light source (5) , the camera (6) is connected with the data controller (13) through a data line.

2. The vehicle hub detection device according to claim 1, characterized in that: the lifting mechanism is a cylinder (2), one end of the cylinder (2) is fixed on the base (1), and the other end is fixed on the hub tray (4 ) of the lower end face.

3. The vehicle hub detection device according to claim 1, characterized in that: the hub tray (4) is provided with a hub positioning block (14).

4. The vehicle hub inspection device according to claim 1, characterized in that: a driving mechanism for adjusting the height of the camera (6) is provided above the base (1).

5. The vehicle hub detection device according to claim 4, characterized in that: the drive mechanism is composed of a motor (11), a screw (10), a slide bar (8) and a crossbeam (7), and the crossbeam (7 ) one end fixes the camera (6), the middle part is sleeved on the slide bar (8), and the other end is driven by a screw mandrel (10) connected with a motor (11).

6. The vehicle hub detection device according to claim 4, characterized in that: at least three balance feet (12) are provided on the lower end surface of the base (1).