Device for detecting balance of hub valve hole

Abstract

A device for detecting the balance of a hub valve hole that includes a hub conveying roller bed configured to sequentially convey a hub from an upstream of a conveying belt to a hub identification device and a valve hole balance detection device until the hub leaves the valve hole balance detection device, wherein the hub identification device includes an electronic belt scale configured to obtain the weight of the hub and an industrial camera configured to take a photo of a wheel disc of the hub when the hub is conveyed to the hub identification device. The device can accurately identify the hub type and then automatically complete the valve hole compensation function of balance detection through the combination of the above components, program control and an algorithm, thereby improving the automation level and reducing the repeated operation of an operator.

Claims

1. A device for detecting balance of a hub valve hole, comprising: a hub conveying roller bed, a hub identification device, a valve hole balance detection device and a processor; wherein the hub conveying roller bed is configured to sequentially convey a hub from an upstream of a conveying belt to the hub identification device and the valve hole balance detection device until the hub leaves the valve hole balance detection device; wherein the hub identification device comprises an electronic belt scale and an industrial camera, the electronic belt scale is configured to obtain a weight of the hub when the hub is conveyed to the hub identification device, the industrial camera is configured to take a front photo of a wheel disc of the hub when the hub is conveyed to the hub identification device, and the electronic belt scale and the industrial camera are both in data connection with the processor; wherein the valve hole balance detection device comprises a spindle, an industrial camera, a laser generating device and a laser receiving device, wherein the spindle is configured to clamp and rotate the hub when the hub reaches the valve hole balance detection device; wherein the industrial camera is configured to face the front of the wheel disc of the hub; wherein the laser generating device and the laser receiving device are configured to emit laser, detect laser reflection at a bolt hole of the wheel disc and transmit a reflected signal to the processor; and wherein the processor is configured to receive the laser reflection from the laser generating device and the laser receiving device which are used for emitting laser and detecting the laser reflection at the bolt hole of the wheel disc, and calculate a weight compensation.

2. The device for detecting balance of a hub valve hole according to claim 1, wherein the valve hole detection device further comprises an encoder, which is configured to calculate a phase angle of the valve hole of the hub.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The embodiments of the present invention will be described in detail below in combination with the accompanying drawings, in which:

(2) FIG. 1 is a structural layout diagram of a hub valve hole detection device; and

(3) FIG. 2 is a structure diagram of the hub valve hole detection device.

(4) In which, 1laser receiving device, 2servo drive device, 3laser emitting device, 4rotary encoder, 5spindle clamp, 6hub, 7industrial camera, 8electronic belt scale, 9roller bed, Avalve hole detection device.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(5) Embodiment 1: A Hub Valve Hole Detection Device

(6) The hub valve hole detection device will be described in detail below in combination with the accompanying drawings.

(7) The hub valve hole detection device comprises a laser receiving device 1, a servo drive device 2, a laser emitting device 3, a rotary encoder 4, a spindle clamp 5, a hub 6, an industrial camera 7, an electronic belt scale 8, and a roller bed 9.

(8) The hub 6 on the roller bed 9 is first weighed by the electronic belt scale 8 of the hub valve hole detection device, roughly identified and positioned, that is, different hub types are distinguished by weight.

(9) When the roughly identified hub 6 runs to a photographing station of the industrial camera 7, the hub 6 stops moving, and is photographed for accurate identification. The type of the hub 6 is finally accurately identified through the two criteria comprising the weight of the hub and the photo.

(10) Then, the hub 6 runs to a balance detection station, the spindle clamp 5 clamps the hub 6 to rotate at a high speed, and balance detection and confirmation on a phase angle of a valve hole are performed at the first circle of rotation. At the same time, the servo drive device 2 drives the laser generating device 3 to directionally scan the hub 6. Since the hub 6 has only one valve hole, when the laser receiving device 1 receives a laser projection signal passing through the valve hole, the time is recorded and transmitted to the spindle rotary encoder 4, and the phase angle of the valve hole is accurately positioned at the moment of projection detection.

(11) After the phase angle of the valve hole is determined, the weight compensation is calculated by an automatic compensation program for the position of the valve hole according to the hub type. After the second circle of rotation begins, the balance amount detection after compensation is performed. The balance amount of the first circle is compared with the balance amount of the second circle through program analysis to automatically determine whether the weight compensation calculation is valid.

(12) Embodiment 2: A Hub Valve Hole Detection Device

(13) As described in Embodiment 1, after different types of hubs 6 are preliminarily weighed by the electronic belt scale 8 and identified, the weight of the hub 6 is compared with the database of an industrial personal computer for rough analysis, then the hub 6 runs to the station of the industrial camera 7, and the unique type of the hub is identified.

(14) For example, the weight of the hub 6 is measured to give a weight fluctuation range of 100 g; the similarity of the measured photos of the hub 6 is matched by 95%; the criterion is that the wheel type having the similarity of more than 95% is subjected to weighing data comparison, and the type of the hub 6 is distinguished through the weight; and unique determination is performed on the hub 6 having the picture similarity of less than 95%, so that accurate identification on the type of the hub 6 can be ensured.

(15) After the type of the hub 6 is determined, the weight value of the valve hole weight is called in advance by a program. After the phase angle of the valve hole of the hub 6 is detected, the weight value of the weight is superimposed to the balance measurement data of the hub 6 in phase, and then the balance amount of the hub 6 after balancing is calculated.

(16) Through verification of weight balance test with manual installation, 1000 different types of hubs 6 are detected. The detection device and method can realize zero error identification, the consistency of balance amount detection data reaches 96%, and the purpose of balance detection by automatic balancing with valve hole phase detection is achieved.