U.S. patent application number 15/578875 was filed with the patent office on 2018-07-12 for three-in-one testing machine for a coded luggage lock.
The applicant listed for this patent is Dongguan Jingyu Industrial Co., Ltd.. Invention is credited to Maotian He, Zheng Xu, Xiangshou Zeng.
Application Number | 20180195932 15/578875 |
Document ID | / |
Family ID | 53122674 |
Filed Date | 2018-07-12 |
United States Patent
Application |
20180195932 |
Kind Code |
A1 |
Xu; Zheng ; et al. |
July 12, 2018 |
THREE-IN-ONE TESTING MACHINE FOR A CODED LUGGAGE LOCK
Abstract
The invention relates to a three-in-one testing machine for a
coded luggage lock. The three-in-one testing machine includes a
testing machine table and a control unit. At least two coded lock
fixing clamps, a code wheel code-rubbing testing mechanism and a
key pulling/insertion/rotation testing mechanism are installed on a
working table top of the testing machine table. In the invention,
by means of the structure, two testing mechanisms on one testing
machine can complete testing on three functions including the
rotation life of a code wheel, key insertion/pulling to detect the
fatigue strength of a lock kernel and a lock row and key rotation
to detect the rotation strength of the lock kernel and the fatigue
resistance of a locating pit cooperating with the lock kernel.
Inventors: |
Xu; Zheng; (Dongguan,
CN) ; Zeng; Xiangshou; (Dongguan, CN) ; He;
Maotian; (Dongguan, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Dongguan Jingyu Industrial Co., Ltd. |
Dongguan |
|
CN |
|
|
Family ID: |
53122674 |
Appl. No.: |
15/578875 |
Filed: |
March 13, 2015 |
PCT Filed: |
March 13, 2015 |
PCT NO: |
PCT/CN2015/074168 |
371 Date: |
December 1, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E05B 65/52 20130101;
E05B 37/0031 20130101; G01M 13/00 20130101; G05B 19/05
20130101 |
International
Class: |
G01M 13/00 20060101
G01M013/00; G01D 5/26 20060101 G01D005/26; E05B 37/00 20060101
E05B037/00; E05B 65/52 20060101 E05B065/52 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 31, 2014 |
CN |
201410855054.6 |
Claims
1. A three-in-one testing machine for a coded luggage lock,
comprising a testing machine table and a control unit, wherein at
least two coded lock fixing clamps, a code wheel code-rubbing
testing mechanism and a key pulling/insertion/rotation testing
mechanism are installed on a working table top of the testing
machine table; the code wheel code-rubbing testing mechanism
comprises a horizontal installation seat, a motor, a crank rocker
horizontally arranged on the horizontal installation seat and
driven by the motor, a horizontal push rod connected to the crank
rocker and driven thereby, a push rod seat configured to install
and locate the horizontal push rod, and a code-rubbing block
connected to the tail end of the horizontal push rod, the lower
rear part of the code-rubbing block being connected to a horizontal
sliding block in a horizontal guide rail and sliding block assembly
parallel to the horizontal push rod, and a horizontal guide rail
being fixed to the working table top of the testing machine table;
and the key pulling/insertion/rotation testing mechanism comprises
a longitudinal support installed on the working table top, a
longitudinal electric push rod and a longitudinal guide rail and
sliding block assembly installed on the longitudinal support, a
longitudinal servo motor simultaneously connected to the
longitudinal electric push rod and a longitudinal sliding block in
the longitudinal guide rail and sliding block assembly, and a key
fixing block installed at the bottom end of an output shaft of the
longitudinal servo motor, a longitudinally-disposed key locating
groove being provided on the key fixing block.
2. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein a code-rubbing silicone block is
installed on a lower surface of the code-rubbing block; a
code-rubbing rack which laterally protrudes is installed on the
code-rubbing block, and a gear support is installed on the working
table top correspondingly; a plurality of longitudinal gear shafts
are installed on the gear support via bearings; a gear and a
code-rubbing silicone ring are installed at the middle lower part
of each longitudinal gear shaft sequentially; and each gear is
engaged with the code-rubbing rack.
3. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein the control unit comprises a
Programmable Logic Controller (PLC) arranged in the testing machine
table, a touch display screen and a start-stop switch, the touch
display screen and the start-stop switch being installed on the
side of the machine table, and an alarm lamp being arranged on the
side of the machine table.
4. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein a code-rubbing strength sensor
connected to the PLC of the control unit is arranged in the code
wheel code-rubbing testing mechanism.
5. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein a pulling/insertion strength sensor
and a torsion strength sensor connected to the PLC of the control
unit are arranged in the key pulling/insertion/rotation testing
mechanism.
6. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein a first photoelectric switch and a
second photoelectric switch connected to the PLC are arranged on
the working table top of the testing machine table and beside the
coded lock fixing clamps respectively.
7. The three-in-one testing machine for a coded luggage lock
according to claim 1, wherein a plurality of fixing holes are
provided on the working table top of the testing machine table.
Description
FIELD OF THE INVENTION
[0001] The invention relates to the technical field of coded locks,
and in particular to a three-in-one testing machine for a coded
luggage lock.
BACKGROUND OF THE INVENTION
[0002] Currently, the rotation life of a code wheel of a luggage
lock, the insertion/pulling of a key and the rotation of the key
are mainly tested by a worker in a manual manner. The testing mode
is very low in efficiency, low in accuracy and high in labour
cost.
SUMMARY OF THE INVENTION
[0003] The invention provides a three-in-one testing machine for a
coded luggage lock, which is intended to overcome the defects in
the traditional art.
[0004] To this end, the technical solutions adopted in the
invention are implemented as follows. A three-in-one testing
machine for a coded luggage lock may include a testing machine
table and a control unit. At least two coded lock fixing clamps, a
code wheel code-rubbing testing mechanism and a key
pulling/insertion/rotation testing mechanism may be installed on a
working table top of the testing machine table.
[0005] The code wheel code-rubbing testing mechanism may include a
horizontal installation seat, a motor, a crank rocker horizontally
arranged on the horizontal installation seat and driven by the
motor, a horizontal push rod connected to the crank rocker and
driven thereby, a push rod seat configured to install and locate
the horizontal push rod, and a code-rubbing block connected to the
tail end of the horizontal push rod. The lower rear part of the
code-rubbing block may be connected to a horizontal sliding block
in a horizontal guide rail and sliding block assembly parallel to
the horizontal push rod, and a horizontal guide rail may be fixed
to the working table top of the testing machine table.
[0006] The key pulling/insertion/rotation testing mechanism may
include a longitudinal support installed on the working table top,
a longitudinal electric push rod and a longitudinal guide rail and
sliding block assembly installed on the longitudinal support, a
longitudinal servo motor simultaneously connected to the
longitudinal electric push rod and a longitudinal sliding block in
the longitudinal guide rail and sliding block assembly, and a key
fixing block installed at the bottom end of an output shaft of the
longitudinal servo motor, a longitudinally-disposed key locating
groove being provided on the key fixing block.
[0007] A code-rubbing silicone block may be installed on a lower
surface of the code-rubbing block. A code-rubbing rack which
laterally protrudes may be installed on the code-rubbing block, and
a gear support may be installed on the working table top
correspondingly. A plurality of longitudinal gear shafts may be
installed on the gear support via bearings. A gear and a
code-rubbing silicone ring may be installed at the middle lower
part of each longitudinal gear shaft sequentially. Each gear may be
engaged with the code-rubbing rack.
[0008] The control unit may include a Programmable Logic Controller
(PLC) arranged in the testing machine table, a touch display screen
and a start-stop switch, the touch display screen and the
start-stop switch being installed on the side of the machine table.
An alarm lamp may be arranged on the side of the machine table.
[0009] A code-rubbing strength sensor connected to the PLC of the
control unit may be arranged in the code wheel code-rubbing testing
mechanism.
[0010] A pulling/insertion strength sensor and a torsion strength
sensor connected to the PLC of the control unit may be arranged in
the key pulling/insertion/rotation testing mechanism.
[0011] A first photoelectric switch and a second photoelectric
switch connected to the PLC may be arranged on the working table
top of the testing machine table and beside the coded lock fixing
clamps respectively.
[0012] A plurality of fixing holes may be provided on the working
table top of the testing machine table so as to install all
mechanisms and adjust the positions of all mechanisms according to
the conditions such as the type of a lock to be tested and a
position requirement respectively.
[0013] In the invention, by means of the structure, two testing
mechanisms on one testing machine can complete testing on three
functions including the rotation life of a code wheel, key
insertion/pulling to detect the fatigue strength of a lock kernel
and a lock row and key rotation to detect the rotation strength of
the lock kernel and the fatigue resistance of a locating pit
cooperating with the lock kernel. Moreover, the two testing
mechanisms may operate synchronously or asynchronously, and
independent control, convenience and flexibility are achieved. The
conventional manual testing is replaced with the testing machine,
thereby greatly improving the efficiency and reducing the labour
cost. The testing accuracy and the testing consistency are
improved, and improvement of the quality of a product is promoted.
Moreover, testing of the testing machine can be applied to locks
including front-layout luggage locks, side-layout luggage locks and
padlocks; testing on key insertion/pulling and testing on key
rotation may include testing on zipper locks, padlocks and side
locks; and the application range is wide, a failure alarm function
is provided, and complete intelligence is achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 and FIG. 2 are overall structure diagrams of a
testing machine according to the invention; and
[0015] FIG. 3 is a detail view of a part A in FIG. 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] The invention is further described below with reference to
the embodiments and the drawings.
[0017] As shown in FIG. 1 to FIG. 3, the invention provides a
three-in-one testing machine for a coded luggage lock, which
includes a testing machine table 1 and a control unit. A plurality
of fixing holes 110 are provided on a working table top 11 of the
testing machine table 1. At least two coded lock fixing clamps 2, a
code wheel code-rubbing testing mechanism 3 and a key
pulling/insertion/rotation testing mechanism 4 are installed on the
working table top 11 of the testing machine table 1.
[0018] The code wheel code-rubbing testing mechanism 3 includes a
horizontal installation seat 31, a motor (arranged inside the
horizontal installation seat or the testing machine and not shown
in Figure), a crank rocker 32 horizontally arranged on the
horizontal installation seat 31 and driven by the motor, a
horizontal push rod 33 connected to the crank rocker 32 and driven
thereby, a push rod seat 34 configured to install and locate the
horizontal push rod 33, and a code-rubbing block 35 connected to
the tail end of the horizontal push rod 33. A working part of the
code-rubbing block 35 is located laterally below the axial
direction of the horizontal push rod 33. The lower rear part of the
code-rubbing block 35 is connected to a horizontal sliding block
361 in a horizontal guide rail and sliding block assembly 36
parallel to the horizontal push rod 33, and a horizontal guide rail
362 is fixed to the working table top 11 of the testing machine
table 1. The crank rocker 32 is driven by the motor, drives the
horizontal push rod 33 to move back and forth along the push rod
seat 34, and further drives the code-rubbing block 35 to
reciprocate along the horizontal guide rail 362. One or two of the
coded lock fixing clamps 2 are located below or laterally below the
code-rubbing block 35. The code-rubbing block 35 drives a code
wheel on a coded lock to rotate back and forth so as to test the
life of the code wheel.
[0019] Furthermore, a code-rubbing silicone block 351 is installed
on a lower surface of the code-rubbing block 35. The code-rubbing
block 35 reciprocates under the driving of the horizontal push rod
33 entirely to drive the code wheel to rotate by means of the
friction between the code-rubbing silicone block 351 on the lower
surface and the code wheel, thereby being applicable to testing a
coded lock in a type that a code wheel protrudes on an upper
surface of a lock box. A code-rubbing rack 352 which laterally
protrudes is installed on the code-rubbing block 35, and a gear
support 37 is installed on the working table top 11
correspondingly. The gear support 37 is bent. A plurality of
longitudinal gear shafts 371 are installed on the gear support 37
via bearings. A gear 372 and a code-rubbing silicone ring 373 are
installed at the middle lower part of each longitudinal gear shaft
371 sequentially. Each gear 372 is engaged with the code-rubbing
rack 352. By engaging the rack 352 with the gears 372, when the
rack 352 reciprocates along with the code-rubbing block 35, the
gears 372 and the gear shafts 371 are driven to rotate, thereby
allowing the code-rubbing silicone rings 373 fixed to the bottom
ends of the gear shafts 371 rotate. A mode of driving the code
wheel to rotate by means of the friction between the code-rubbing
silicone rings 373 and the code wheel is suitable for testing a
coded lock in a type that a code wheel laterally protrudes on a
lock box. Thus, the structure cooperates with the corresponding
coded lock fixing clamps, so that various types of coded locks can
be tested, or even the rotation lives of the code wheels of two
coded locks can be tested simultaneously by slight adjustment of a
specific position and a specific size. The reciprocation for one
time is a testing period. According to a testing requirement, a
choice to integrally install the gear support 37 and components
thereon or not can be made.
[0020] The key pulling/insertion/rotation testing mechanism 4
includes a longitudinal support 41 installed on the working table
top 11, a longitudinal electric push rod 42 and a longitudinal
guide rail and sliding block assembly 43 installed on the
longitudinal support 41, a longitudinal servo motor 44
simultaneously connected to the longitudinal electric push rod 42
and a longitudinal sliding block 431 in the longitudinal guide rail
and sliding block assembly 43, and a key fixing block 45 installed
at the bottom end of an output shaft of the longitudinal servo
motor 44, a longitudinally-disposed key locating groove being
provided on the key fixing block 45. The key locating groove
cooperates with a radial locking screw to fix a key. One of the
coded lock fixing clamps 2 is located right below the key fixing
block 45, so that a lock hole directly faces the key installed on
the key fixing block after the coded lock is fixed. The
longitudinal electric push rod 42 drives the whole longitudinal
servo motor 44 to move up and down along a longitudinal guide rail
432 in the longitudinal guide rail and sliding block assembly 43,
so that the key installed on the output shaft of the longitudinal
servo motor 44 moves up and down, and testing on key
pulling/insertion is performed. After the key is inserted into the
lock hole of the coded lock, the longitudinal servo motor 44 works,
so that the output shaft and the key thereon rotate forward for 90
degrees accordingly and then rotate backward for 90 degrees, the
key is tested, and a testing period ranges from insertion of the
key, forward rotation, backward rotation to pull-out of the
key.
[0021] The control unit includes a PLC (not shown in Figure)
arranged in the testing machine table 1, a touch display screen 12
and a start-stop switch 13, the touch display screen 12 and the
start-stop switch 13 being installed on the side of the machine
table. An alarm lamp 14 is arranged on the side of the machine
table.
[0022] A code-rubbing strength sensor connected to the PLC of the
control unit is arranged in the code wheel code-rubbing testing
mechanism 3. The code-rubbing strength sensor can sense a
code-rubbing strength namely the size of a code-rubbing resistance.
The code-rubbing strength is compared with a code-rubbing strength
range threshold (generally input as a minimum value 0.1 kgf and a
maximum value 0.3 kgf) set in the PLC. When the code-rubbing
strength is within this range, it is shown that the code-rubbing
strength is normal, namely the code wheel rotates normally. When
the code-rubbing strength is too large or small to be within this
range, it is shown that the movement of the code wheel is blocked
or the rotation is over-relaxed, the code wheel rotates abnormally,
and it is shown that the code wheel has failed. At this time, the
PLC controls an acousto-optic alarm apparatus to give an alarm so
as to remind an operator of ending of code-rubbing testing on the
code wheel.
[0023] A pulling/insertion strength sensor and a torsion strength
sensor connected to the PLC of the control unit are arranged in the
key pulling/insertion/rotation testing mechanism 4. The
pulling/insertion strength sensor senses the thrust strength needed
by insertion of the key into a lock cylinder in a pulling/insertion
process and the pull force strength needed by pull-out or the size
of a resistance to be overcome. The pulling/insertion strength is
compared with a pulling/insertion strength range threshold
(generally input as a minimum value 0.1 kgf and a maximum value 0.5
kgf) set in the PLC. When the pulling/insertion strength is within
this range, it is shown that the pulling/insertion strength is
normal. When the pulling/insertion strength is too large or small
to be within this range, it is shown that the fatigue strength of a
lock kernel and a lock row of the lock cylinder is abnormal, and
testing needs to be ended. Correspondingly, the torsion strength
sensor senses the torsion strength needed in a torsion process of
the key. Likewise, the torsion strength is compared with a torsion
strength range threshold (generally input as a minimum value 0.2
kgf and a maximum value 0.5 kgf) set in the PLC. When the torsion
strength is within this range, it is shown that the torsion
strength is normal. When the torsion strength is too large or small
to be within this range, it is shown that the rotation strength of
the lock kernel and the fatigue resistance of a locating pit
cooperating with the lock kernel are abnormal, and testing also
needs to be ended.
[0024] The code-rubbing strength sensor, the pulling/insertion
strength sensor and the torsion strength sensor can perform
threshold setting in the PLC, and can set each threshold according
to standards of different enterprises and different types of locks
so as to more flexibly and intelligently detect various locks.
[0025] A first photoelectric switch 15 and a second photoelectric
switch 16 connected to the PLC are arranged on the working table
top 11 of the testing machine table 1 and beside the coded lock
fixing clamps 2 respectively. The first photoelectric switch 15 is
opposite to the code-rubbing block 35, can calculate the number of
times for reciprocation of the code-rubbing block 35, and can also
detect whether the code-rubbing block 35 operates normally. When
the code-rubbing block stays still in an operation process in case
of a mechanical fault, the first photoelectric switch 15 sends a
signal to the PLC to further allow the acousto-optic alarm to give
an alarm. The second photoelectric switch 16 is opposite to a
falling position of the key, calculates the number of times for
testing key pulling/insertion, and detects whether the longitudinal
electric push rod 42 and the longitudinal servo motor 44 operate
normally. If the longitudinal electric push rod 42 and the
longitudinal servo motor 44 stop operating in case of a fault, the
second photoelectric switch 16 sends a signal to the PLC to further
allow the acousto-optic alarm to give an alarm.
[0026] When the three-in-one testing machine for a coded luggage
lock is used, it is necessary to execute the steps as follows.
[0027] 1) A lock needing to be tested is installed, and a testing
position is debugged.
[0028] 2) A power supply is started.
[0029] 3) A user enters a human-computer interface and sets each
testing parameters.
[0030] 4) A start button is pressed down on the human-computer
interface.
[0031] 5) The start button is divided into a code-rubbing testing
start button and a key testing start button.
[0032] 6) The key testing start button is pressed down.
[0033] 7) An electric push rod moves downward, a key is inserted
into a lock hole, and after a maximum downward-movement stroke is
reached, the electric push rod stops.
[0034] 8) A stepping motor is started, rotates forward for 90
degrees, and then stops.
[0035] 9) The electric push rod lifts, the key is pulled out, after
a maximum lifting stroke is reached, the step stops temporarily for
0.5 s, then the electric push rod moves downward, the key is
inserted into the lock hole, and after the maximum
downward-movement stroke is reached, the electric push rod
stops.
[0036] 10) The stepping motor is started, rotates backward for 90
degrees, and then stops.
[0037] 11) Steps 7 to 10 are cyclically executed, and after
continuing for 1500 times, the operation stops, and an alarm is
given. Meanwhile, in the operation process, when the rotation
torsion of the key is over-large or over-small, which is determined
by programming inside a PLC and generally input as a minimum value
0.2 kgf and a maximum value 0.5 kgf, the PLC controls an
acousto-optic alarm to give an alarm, and all tests are stopped.
Meanwhile, when the insertion thrust or pull-out force of the key
is over-small or over-large, which is determined by programming
inside the PLC and generally input as a minimum insertion thrust
value 0.1 kgf and a maximum insertion thrust value 0.5 kgf or a
minimum pull-out force value 0.2 kgf and a maximum pull-out force
value 0.5 kgf, the PLC controls the acousto-optic alarm to give an
alarm, and all tests are stopped.
[0038] 12) The code-rubbing testing start button is pressed
down.
[0039] 13) A crank rocker mechanism drives a code-rubbing plate and
a code-rubbing wheel to work back and forth to achieve 5000 cycles.
When the code-rubbing force is over-large or over-small, which is
determined by programming inside the PLC and generally input as a
minimum value 0.1 kgf and a maximum value 0.3 kgf, the PLC controls
the acousto-optic alarm to give an alarm, and all tests are
stopped.
[0040] 14) When parameters set by the human-computer interface are
reached during testing, the machine automatically stops, and gives
an alarm.
[0041] In the invention, by means of the structure, two testing
mechanisms on one testing machine can complete testing on three
functions including the rotation life of the code wheel, key
insertion/pulling to detect the fatigue strength of the lock kernel
and the lock row and key rotation to detect the rotation strength
of the lock kernel and the fatigue resistance of the locating pit
cooperating with the lock kernel. Moreover, the two testing
mechanisms may operate synchronously or asynchronously, and
independent control, convenience and flexibility are achieved. The
conventional manual testing is replaced with the testing machine,
thereby greatly improving the efficiency and reducing the labour
cost. The testing accuracy and the testing consistency are
improved, and improvement of the quality of a product is
promoted.
[0042] Moreover, testing of the testing machine can be applied to
locks including front-layout luggage locks, side-layout luggage
locks and padlocks; testing on key insertion/pulling and testing on
key rotation may include testing on zipper locks, padlocks and side
locks; and the application range is wide. Meanwhile, simulation of
the working sequence and principle of the luggage lock under the
using condition controlled by the PLC is achieved, the three
functions can be tested sequentially every 3 seconds, and compared
with the current manual testing efficiency, the testing efficiency
is increased by over 20 times; and in addition, testing may include
single-item testing and multi-item testing, and can be
self-adjusted. The invention is adaptable to all luggage locks,
padlocks and side locks on the current market. A failure alarm
function is provided, and complete intelligence is achieved.
* * * * *