U.S. patent application number 16/266875 was filed with the patent office on 2019-10-03 for device for detecting balance of hub valve hole.
The applicant listed for this patent is CITIC DICASTAL CO., LTD. Invention is credited to Lijun An, Guogang Chen, Lei Jiang, Chunhai Liu, Hongmei Liu, Jinqi Lyu, Yingfeng Wang, Zhigao Yin, Zhihua Zhu.
Application Number | 20190301964 16/266875 |
Document ID | / |
Family ID | 63379389 |
Filed Date | 2019-10-03 |
United States Patent
Application |
20190301964 |
Kind Code |
A1 |
Chen; Guogang ; et
al. |
October 3, 2019 |
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.
Inventors: |
Chen; Guogang; (Qinhuangdao,
CN) ; Lyu; Jinqi; (Qinhuangdao, CN) ; An;
Lijun; (Qinhuangdao, CN) ; Wang; Yingfeng;
(Qinhuangdao, CN) ; Jiang; Lei; (Qinhuangdao,
CN) ; Yin; Zhigao; (Qinhuangdao, CN) ; Liu;
Chunhai; (Qinhuangdao, CN) ; Zhu; Zhihua;
(Qinhuangdao, CN) ; Liu; Hongmei; (Qinhuangdao,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CITIC DICASTAL CO., LTD |
Qinhuangdao |
|
CN |
|
|
Family ID: |
63379389 |
Appl. No.: |
16/266875 |
Filed: |
February 4, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G01M 1/16 20130101; G01M
3/022 20130101; G01B 11/002 20130101; G01M 1/34 20130101 |
International
Class: |
G01M 3/02 20060101
G01M003/02; G01B 11/00 20060101 G01B011/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 29, 2018 |
CN |
201810271140.0 |
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
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims priority to Chinese Patent
Application No. 201810271140.0, entitled DEVICE FOR DETECTING
BALANCE OF HUB VALVE HOLE and filed on Mar. 29, 2018, which is
incorporated herein by reference for all purposes.
FIELD OF THE INVENTION
[0002] The present invention relates to a hub valve hole detection
device and an automatic weight compensation method.
BACKGROUND OF THE INVENTION
[0003] Balance detection is required after hub machining to
identify balance rejects. Since the motor vehicle main engine plant
requires the balance amount of a hub to meet the balance
requirement of loading, a weight substitute having the weight and
size matching the requirements of the main engine plant needs to be
installed at a valve hole during balance detection of a hub. Since
different wheel types have different weight requirements, the wheel
type is manually identified during balance detection of a hub, and
then a weight substitute is manually installed, followed by the
balance detection.
[0004] The previous work relies entirely on the manual operation of
an operator, and the weight substitute is manually removed after
the balance detection, so this is a typical repetitive work, and
the manual operation efficiency is low. Therefore, the use of a hub
valve hole detection device can automatically complete valve hole
weight compensation after the wheel type is identified. This device
solves the problems of relying on personnel identification and
repeated single operation, improves the labor productivity and
perfects the automation of hub detection.
SUMMARY OF THE INVENTION
[0005] Accordingly, an object of the present invention is to
provide a hub valve hole detection device capable of automatically
detecting the position of a valve hole of a hub during balance
detection, and then automatically compensating the weight at the
position of the valve hole according to the hub type.
[0006] In order to achieve the above object, the present invention
provides the following technical solution:
[0007] In one aspect of the present invention, provided is a device
for detecting the 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, the hub conveying roller
bed is configured to sequentially convey a hub from the upstream of
a conveying belt to the hub identification device and the valve
hole balance detection device till the hub leaves the valve hole
balance detection device; the hub identification device comprises
an electronic belt scale and an industrial camera, the electronic
belt scale is configured to obtain the 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; 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; the industrial camera is
configured to face the front of the wheel disc of the hub; 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 the reflected signal to the processor;
and 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 by, and calculate the
weight compensation.
[0008] The valve hole detection device further comprises an
encoder, which is configured to calculate a phase angle of the
valve hole of the hub.
[0009] In another aspect of the present invention, further provided
is a method for detecting the balance of a hub valve hole using the
device described above, the method comprising the steps of: (1)
conveying a hub to be detected to a hub identification device by a
hub conveying roller bed; (2) obtaining the weight of the hub by an
electronic belt scale when the hub is conveyed to the hub
identification device, taking a front photo of a wheel disc of the
hub by an industrial camera when the hub is conveyed to the hub
identification device, transmitting the weight and the front photo
to a processor by the electronic belt scale and the industrial
camera, and comparing the information with the hub information
preset in the processor to determine a hub type by the processor;
(3) conveying the hub to be detected to a balance detection station
by the hub conveying roller bed, clamping and rotating the hub by a
spindle, driving a laser emitting device by a servo drive device to
directionally scan the hub, detecting the laser reflection at a
bolt hole of the wheel disc by a laser receiving device, recording
the time, transmitting the reflected signal to the processor, and
determining the position of the phase angle of the valve hole by
the processor; and (4) calculating the weight compensation for the
position of the valve hole according to the hub based on the phase
angle of the valve hole, and detecting the compensated balance
amount after the second circle of rotation begins.
[0010] The technical solution of the present invention has the
following advantages: [0011] (1) The device adopts the electronic
belt scale as a detecting element for the hub identification, which
can realize rough hub identification and positioning confirmation
on the presence or absence of a hub. [0012] (2) The device can
further accurately identify the weight by using the industrial
camera. [0013] (3) The device using servo drive has the
characteristics of fast and stable operation and accurate and
reliable positioning. [0014] (4) The device uses the rotary encoder
to achieve precise positioning of the hub valve hole. [0015] (5)
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.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The embodiments of the present invention will be described
in detail below in combination with the accompanying drawings, in
which:
[0017] FIG. 1 is a structural layout diagram of a hub valve hole
detection device; and
[0018] FIG. 2 is a structure diagram of the hub valve hole
detection device.
[0019] In which, 1-laser receiving device, 2-servo drive device,
3-laser emitting device, 4-rotary encoder, 5-spindle clamp, 6-hub,
7-industrial camera, 8-electronic belt scale, 9-roller bed, A-valve
hole detection device.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Embodiment 1: A hub valve hole detection device
[0021] The hub valve hole detection device will be described in
detail below in combination with the accompanying drawings.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] 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.
Embodiment 2: A hub valve hole detection device
[0027] 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.
[0028] 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.
[0029] 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.
[0030] 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.
* * * * *