CN108680345B - Door opening machine for refrigerator door switch durability test - Google Patents
Door opening machine for refrigerator door switch durability test Download PDFInfo
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- CN108680345B CN108680345B CN201810346622.8A CN201810346622A CN108680345B CN 108680345 B CN108680345 B CN 108680345B CN 201810346622 A CN201810346622 A CN 201810346622A CN 108680345 B CN108680345 B CN 108680345B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention relates to the technical field of test equipment, and discloses a door opening machine for a refrigerator door switch durability test. The invention can realize the rapid matching of refrigerators of various models, better solves the matching problem of the opening and closing tracks of the refrigerator doors, has convenient and rapid installation, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator at the same time, has high safety and stability coefficient of equipment, low failure rate, difficult damage to the refrigerator, high automation degree, simple structure and low cost.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a door opening machine for a refrigerator door switch durability test.
Background
At present, automation equipment is applied more and more frequently in industrial production, and how to release workers from heavy work becomes a primary task for improving productivity. In the testing of the hinges of the refrigerator door, the tedious work of repeatedly opening and closing the door is faced. At present, the action of repeatedly opening and closing the door is mainly completed manually, the work is complicated and tedious, and the testing efficiency is low.
The existing refrigerator door opening mechanism cannot be well matched with various types of refrigerators, is also poor in structural stability, frequently causes various faults of equipment per se in a batch of tests which are as long as tens of thousands of times in the process of endurance tests, such as sucker dropping and mechanical arm abrasion, and has the problems of overlarge door opening and closing force, uneven force application point, poor adjustability, incapability of well matching with refrigerator doors and the like, and the safety and stability coefficient of the equipment is low.
In linking up the in-process discovery with refrigerator test personnel, current refrigerator door operator rocking arm movement track and the unable better matching of refrigerator door switch orbit, the existence of orbit error leads to rocking arm appearing in the experimentation, the sucking disc drops even phenomenon of striking with the refrigerator door, thereby the experiment is compelled to be stopped, need install again, appear even because the orbit error leads to the refrigerator hinge to appear the abnormal damage, current door operator still has the sucking disc can't freely at the whole door surface adjusting position of refrigerator simultaneously, the arm of force atress that leads to the inhomogeneous arouse of refrigerator door atress leads to the power damage, the while switch door of door is experimental about also can't realizing simultaneously, can't match now more and more models, possess the refrigerator door of different structure outward appearance, need to improve promptly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the door opener for the refrigerator door switch durability test, which can realize the quick matching of refrigerators of various models, is convenient and quick to install, better solves the matching of the opening and closing tracks of the refrigerator door, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator at the same time, has high safety and stability coefficient of equipment, low failure rate, high automation degree, simple structure and low cost, and is not easy to damage the refrigerator.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a door opening machine for a refrigerator door switch durability test, which comprises a fixed connecting device for fixedly testing a refrigerator, a door opening connecting device for connecting a refrigerator door and a power device which is fixed on the fixed connecting device and used for driving the door opening connecting device;
the fixed connecting device comprises a base, a plurality of fixed suckers, fixed sucker connecting rods, two supporting frames and a square frame, wherein the fixed suckers are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers adsorbed on the refrigerator door, a door opening connecting rod used for fixing the door opening suckers, and a connecting frame used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame comprises a plurality of L-shaped horizontal supports and a framework vertically and fixedly connected at the turning points of the L-shaped horizontal supports, the L-shaped horizontal supports are provided with long holes with the extending direction in the horizontal direction, and the door opening connecting rods are vertically arranged on two adjacent L-shaped horizontal supports and can adjust the positions along the long holes;
the power device comprises an air pump, an upper pneumatic motor and a lower pneumatic motor, wherein the upper pneumatic motor and the lower pneumatic motor are respectively arranged at the opposite corners of the square frame and the base, and the lower pneumatic motor is embedded in the base and is flush with the surface of the base;
the connecting frame is fixedly connected to the rotating shafts of the upper pneumatic motor and the lower pneumatic motor, the central lines of the rotating shafts of the upper pneumatic motor and the lower pneumatic motor are located on the same straight line, and the connecting frame is driven to rotate back and forth through the rotation of the upper pneumatic motor and the rotation of the lower pneumatic motor.
Preferably, imbed including the fixed suction cup connecting rod sets up on the guide rail on base both sides, just the fixed suction cup connecting rod can follow the horizontal perpendicular to guide rail direction and freely stretch out and draw back, still be provided with respectively on the fixed suction cup connecting rod and be used for fixing the locking in guide rail and horizontal perpendicular to guide rail direction fixed suction cup connecting rod's locking device.
Preferably, the vacuum generator comprises an air pump air inlet, a vacuum air suction port, a low-pressure air chamber and an air outlet; the vacuum air suction port is L-shaped, is welded on the side wall of the low-pressure air chamber and is parallel to the air inlet of the air pump; the diameter of one end of the air inlet of the air pump, which is connected with the low-pressure air chamber, is smaller than that of the other end of the air inlet of the air pump.
Preferably, the door opening connecting rod is two from top to bottom, all is provided with the slot hole that extends along door opening connecting rod length direction, the equal elastic fixation of sucking disc that opens the door sets up on installing the base of door opening connecting rod, the base can be followed slot hole on the door opening connecting rod and reciprocated and be equipped with locking device.
Preferably, a laser counter for metering the door opening times and a 360-degree rotatable video probe for monitoring the working condition of the door opening machine are arranged on the square frame.
Preferably, the lower side of the base is fixedly connected with a moving device, the moving device comprises two supporting plates, the top ends of the supporting plates are fixedly connected with the lower end of the base, two moving grooves are symmetrically formed in the inner sides of the supporting plates, a moving plate is jointly erected in the moving grooves, and the lower side of the moving plate is fixedly connected with rollers; the upper side of the movable plate is symmetrically connected with two first hinges, the supporting plates above the movable plate are rotatably connected with threaded rods, and a worm is fixedly connected between the two threaded rods; the threaded rods are sleeved with threaded sliding blocks, the threaded sliding blocks are provided with second hinges, and the second hinges are connected with the first hinges through rotating rods; the worm is meshed with a worm wheel on the upper side, and a rotating shaft is fixedly connected to the worm wheel.
Preferably, the door opener is further provided with a control module for setting the control switching frequency, the switching times and the switching angle by adjusting the parameters of the pneumatic motor.
Preferably, the control module comprises a processor module, a storage module, a communication module, a mobile receiving control terminal and a data acquisition module;
the storage module is used for storing the data acquired by the data acquisition module, the laser counter and the data acquired by the video probe; the processor module is used for calling data in the storage module, receiving an instruction signal of the mobile receiving control terminal received by the communication module and performing data processing, and sending a parameter adjusting signal to the air pump and the air motor, and the communication module transmits the data in the storage module to the mobile receiving control terminal in real time so as to be called and read by a tester in real time;
the processor module is one of an FPGA, a DSP and a singlechip;
the communication module comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module;
the data acquisition module comprises sensors arranged on the air pump, the pneumatic motor and the door opening connecting rod and a temperature and humidity sensor arranged on the door opening machine;
the storage module comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal comprises mobile receiving equipment and an APP installed on the equipment; the mobile receiving equipment is one of an intelligent bracelet, an intelligent mobile phone and a tablet personal computer.
Preferably, the control module further comprises a display module and an alarm module, wherein the display module is used for displaying the real-time data acquired by the data acquisition module and the door opening times acquired by the laser counter;
the alarm module comprises a voice alarm module and a light alarm module and is used for sending out an alarm signal when the collection parameter value exceeds a preset threshold value.
Preferably, the processor module, the storage module and the communication module are integrated on the same circuit board and are mounted on the side surface of the support frame through a protective box;
the refrigerator is characterized in that the front side of the base is also provided with an inclined plane for the refrigerator to move up and down, the top end of the inclined plane is hinged with the upper front edge of the base, and the bottom end of the inclined plane can move freely.
Compared with the prior art, the invention has the following beneficial effects:
(1) the door opening machine for the refrigerator door opening switch durability test of the invention combines the L-shaped horizontal bracket and the door opening connecting rod together, on one hand, the door opening suction disc can be freely adjusted on the surface of the refrigerator door through the long holes arranged on the horizontal bracket and the door opening connecting rod, on the other hand, the hinge axis of the test refrigerator is coincided with the three lines of the rotating axis central line of the pneumatic motor and the rotating central line of the door opening connecting device through matching the upper pneumatic motor and the lower pneumatic motor which are arranged on the same straight line, thereby realizing the perfect matching of the door opening rotating track of the refrigerator door opening machine and the door opening and closing moving track of the refrigerator door, effectively reducing a series of defects caused by track errors, such as abnormal abrasion, motor damage, connecting rod fracture and the like in the practical application process, and having stronger practicability and capability of solving practical problems through a large number of practical tests in the early stage, the method is approved by laboratories of various refrigerator manufacturers and third-party detection mechanisms, and has the advantages of low equipment cost, high reliability and good economic value.
(2) The door opening machine for the refrigerator door switch durability test comprises a base and a fixed sucker, wherein the fixed sucker is arranged on a fixed sucker connecting rod, the fixed sucker connecting rod can adjust the position on the surface of the base to horizontally move a refrigerator to a proper position, the fixed sucker can also suck the side wall of the refrigerator, and a locking device is used for locking the fixed sucker connecting rod, so that the refrigerator is stably and firmly fixed, the matching performance is good, the fixing is convenient and quick, and the refrigerators of different models and sizes can be well fixed.
(3) The door opening machine for the refrigerator door opening and closing durability test can transmit power required by opening and closing the door through the door opening sucker, achieves concentric circular motion with the door when the door is opened and closed through the designed door opening connecting rod and the connecting frame, enables set door opening and closing speed, angle and amplitude parameters to be accurately fed back to the door body, and enables test errors to be small.
(4) The door opening connecting rod in the door opening machine for the refrigerator door opening and closing durability test is vertically arranged and can translate on the L-shaped horizontal support, and the door opening sucker can translate up and down on the door opening connecting rod, so that the sucker can be adsorbed at any position on the surface of a refrigerator door, the installation convenience and the adjustment multi-selectivity are greatly improved, and the door opening sucker can be suitable for the opening and closing adsorption fixation of refrigerator doors of various types and sizes.
(5) The door opening machine for the door opening and closing durability test of the refrigerator door adopts the elastic arrangement of the door opening sucker and the base, and the refrigerator door has a self-absorption function, so that the force is high at the moment of opening the door, and the situation that the door is greatly impacted at the moment of opening and closing the door if the door opening sucker is directly and rigidly connected with the base is found in the long-term test process, on one hand, the door opening sucker can emit high noise, the sucker can easily fall off, on the other hand, the door opening machine can cause abnormal damage to the door body in the test, the effect of simulating manual door opening and closing can not be achieved, and the elastic arrangement effectively solves the problem.
(6) According to the door opening machine for the refrigerator door opening and closing durability test, the air pump and the pneumatic motor are used as power devices, on one hand, the pneumatic motor is safe in work, has explosion-proof performance, is not influenced by high temperature and vibration, can work in a full load for a long time, is small in temperature rise, has high starting torque, can be started in a load-carrying mode, is started in an emergency mode, is stopped in an emergency mode, is particularly suitable for occasions with frequent starting, is very easy to reverse, is particularly suitable for experimental work occasions and situations of opening and closing the door of a refrigerator, is simple in structure, convenient to operate, easy to maintain and low in cost, and effectively improves the working stability and reliability of the door opening machine.
(7) The door opening machine for the door opening and closing durability test of the refrigerator door adopts the vacuum sucker, on one hand, the vacuum generator is directly applied to the air pump without adding a vacuum pump, on the other hand, the adsorption force of the sucker is greatly improved, the dropping is prevented, enough door opening stress is provided, the firmness of the door opening machine is enhanced, meanwhile, the vacuum generator adopted by the invention is simple in structure, the mutual interference between air flows is reduced through the horizontal arrangement of the vacuum air suction port and the air inlet of the air pump, the phenomena of steady flow and backflow are prevented, and the vacuum degree is better.
(8) According to the door opening machine for the refrigerator door opening and closing durability test, the upper pneumatic motor and the lower pneumatic motor are arranged, on one hand, enough torque is provided, the door opening and closing can be stably and reliably realized, the deformation and the damage of equipment caused by insufficient torque and uneven stress caused by a single motor are avoided, meanwhile, the lower pneumatic motor is embedded into the base, the situation that the upper pneumatic motor and the lower pneumatic motor are located on the same straight line with a hinged shaft of the refrigerator door when the test refrigerator is installed on the base is realized, the door opening and closing track of the refrigerator door is consistent with the motion track of the connecting frame, and the effect of synchronous operation of the refrigerator door and the connecting frame is achieved.
(9) The door opening machine for the door opening and closing durability test can effectively monitor the actual opening and closing times of the refrigerator door through the arranged laser counter, the arranged video probe can effectively monitor the working environment of the door opening machine, meanwhile, the arranged control module can effectively improve the intellectualization and the automation of the door opening machine, the door opening machine has remote monitoring performance through the arranged communication module and the mobile receiving control terminal, the supervision without places and time difference is realized, and various parameters of the door opening machine and various parameters in the working environment are effectively and comprehensively monitored through the arranged sensors.
(10) The door opening machine for the refrigerator door switch durability test is provided with the moving device under the base, is put down when moving is needed, and is retracted when not needed, so that the door opening machine is convenient and quick, simultaneously avoids the trouble of manual carrying, and is stable and safe because the base directly contacts the ground after the moving wheels are retracted.
(11) The door opening machine for the refrigerator door opening and closing durability test can be rapidly matched with refrigerators of various models, is convenient and rapid to install, can be used for automatically and repeatedly opening and closing the upper door and the lower door of the refrigerator, is high in safety and stability coefficient, low in failure rate, not easy to damage the refrigerator, high in automation degree, simple in structure and low in cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a door opener for a durability test of a door switch of a refrigerator according to the present invention;
FIG. 2 is a schematic view of the connection between the door opening suction cup and the door opening connecting rod of the door opening machine for the durability test of the door opening and closing of the refrigerator door according to the present invention;
FIG. 3 is a schematic view of the connection between the fixed sucker connecting rod and the guide rail of the door opener for the durability test of the door opening and closing of the refrigerator door of the present invention;
FIG. 4 is a schematic structural view of a vacuum generator of a door opener for a refrigerator door switch durability test according to the present invention;
FIG. 5 is a schematic view showing the connection between the door opening connecting rod and the L-shaped horizontal bracket of the door opening machine for the durability test of the door opening and closing of the refrigerator door according to the present invention;
FIG. 6 is a schematic structural view of a moving device of a door opener for a refrigerator door switch durability test according to the present invention;
FIG. 7 is a schematic structural diagram of a control module of a door opener for a refrigerator door switch durability test according to the present invention;
fig. 8 is a schematic view showing the connection between the inclined surface and the base of the door opener for the durability test of the door switch of the refrigerator door of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, a door opening machine for a refrigerator door opening and closing durability test comprises a fixed connecting device for fixedly testing a refrigerator, a door opening connecting device for connecting a refrigerator door, and a power device which is fixed on the fixed connecting device and is used for driving the door opening connecting device;
the fixed connecting device comprises a base 1, a plurality of fixed suckers 2, fixed sucker connecting rods 3, two supporting frames 4 and a square frame 5, wherein the fixed suckers 2 are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers 6 adsorbed on the refrigerator door, a door opening connecting rod 7 used for fixing the door opening suckers, and a connecting frame 8 used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame 8 comprises a plurality of L-shaped horizontal brackets 81 and a framework 82 vertically and fixedly connected to the corners of the plurality of L-shaped horizontal brackets 81, the L-shaped horizontal brackets 81 are provided with long holes 811 with a horizontal extending direction, the door-opening connecting rod 7 is vertically arranged on two adjacent L-shaped horizontal brackets 81 and can adjust the position along the direction of the long holes 811, and in the embodiment, the position is adjusted by adopting a fastening nut 812;
the power device comprises an air pump 9, an upper pneumatic motor 10 and a lower pneumatic motor 11 which are respectively arranged at the opposite corners of the square frame 5 and the base 1, and the lower pneumatic motor 11 is embedded in the base 1 and is flush with the surface of the base 1;
the link 8 fixed connection be in go up pneumatic motor 10 and lower pneumatic motor 11's pivot, go up pneumatic motor 10 and lower pneumatic motor 11's pivot central line and be located same straight line, drive link 8 through upper and lower pneumatic motor's rotation and do the rotation that comes and goes.
Embedding including the fixed suction cup connecting rod 3 in this embodiment pierces through the setting on the supporting seat 13 on the guide rail 12 on base 1 both sides, just the fixed suction cup connecting rod 3 can freely stretch out and draw back in the direction of horizontal perpendicular to guide rail 12, still be provided with respectively on the fixed suction cup connecting rod 3 and be used for fixed locking in the direction of guide rail 12 and horizontal perpendicular to guide rail 12 the locking device 14 of fixed suction cup connecting rod 3.
The fixed sucker 2 and the door opening sucker 6 in the embodiment are both vacuum suckers, and the fixed sucker 2 and the door opening sucker 6 are connected into the air pump 9 through a vacuum generator 15 pipe; the vacuum generator comprises an air pump air inlet 151, a vacuum air suction port 152, a low-pressure air chamber 153 and an air outlet 154; the vacuum air suction port 152 is L-shaped, is welded on the side wall of the low-pressure air chamber 153 and is parallel to the air inlet of the air pump 9; the diameter of the air pump inlet 151 connected with the low-pressure air chamber 153 is smaller than that of the other end.
The door opening connecting rod 7 in the embodiment is provided with an upper long hole and a lower long hole, the upper long hole and the lower long hole are both provided with long holes 16 extending along the length direction of the door opening connecting rod 7, the door opening suction cups 6 are both elastically and fixedly arranged on a base 17 arranged on the door opening connecting rod 7, the elastic fixing devices are two symmetrical W-shaped elastic sheets 18, and the base 17 can move up and down along the long holes 16 on the door opening connecting rod 7 and is provided with a locking device.
The square frame 6 in this embodiment is provided with a laser counter 19 for counting the number of door openings and a 360-degree rotatable video probe 20 for monitoring the operation of the door opener.
The lower side of the base 1 in this embodiment is fixedly connected with a moving device 21, the moving device includes two supporting plates 211, the top ends of the supporting plates 211 are fixedly connected with the lower end of the base 1, two moving grooves 212 are symmetrically formed in the inner sides of the supporting plates 211, a moving plate 213 is jointly erected in the moving grooves, and the lower side of the moving plate is fixedly connected with a roller 214; two first hinges 215 are symmetrically connected to the upper side of the moving plate 213, threaded rods 217 are rotatably connected to the supporting plate 216 above the moving plate 213, and a worm 218 is fixedly connected between the two threaded rods 217; the threaded rods 217 are sleeved with threaded sliders 219, the threaded sliders 219 are provided with second hinges 220, and the second hinges 220 are connected with the first hinges 215 through rotating rods 221; the worm 218 is engaged with a worm wheel 222 at the upper side, and a rotating shaft is fixedly connected to the worm wheel 222.
The door operator in this embodiment is further provided with a control module 23 for setting the control switching frequency, the switching times and the switching angle by adjusting parameters of the pneumatic motor.
The control module 23 in this embodiment includes a processor module 231, a storage module 232, a communication module 233, a mobile receiving control terminal 234, and a data acquisition module 235;
the storage module 232 is used for storing the data acquired by the data acquisition module 235, the data acquired by the laser counter 19 and the video probe 20; the processor module 231 is used for retrieving data in the storage module 232, receiving an instruction signal of the mobile receiving control terminal 234 received by the communication module 233 for data processing, and sending a parameter adjusting signal to the air pump 9 and the air motor, and the communication module 233 transmits the data in the storage module 232 to the mobile receiving control terminal 234 in real time for a tester to read in real time;
the processor module 231 is an FPGA microprocessor;
the communication module 233 comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module, and the various modules can be combined for use;
the data acquisition module 235 comprises sensors arranged on an air pump, a pneumatic motor and a door opening connecting rod and a temperature and humidity sensor arranged on a door opening machine;
the storage module 232 comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal 234 comprises a mobile receiving device and an APP installed on the device; the mobile receiving equipment is a smart phone.
The control module in this embodiment further includes a display module 236 and an alarm module 237, where the display module 236 is configured to display the real-time data collected by the data collection module 235 and the door opening times collected by the laser counter 19;
the alarm module 234 includes a voice alarm module and a light alarm module, and is configured to send out an alarm signal when the collected parameter value exceeds a predetermined threshold.
The processor module 231, the storage module 232 and the communication module 233 in this embodiment are integrated on the same circuit board and are mounted on the side surface of the support frame 4 through the protection box 24;
the front side of the base 1 is also provided with an inclined plane 25 for the refrigerator to move up and down, the top end of the inclined plane 25 is hinged with the upper front edge of the base 1, and the bottom end of the inclined plane can move freely.
The working principle of the invention is as follows: transfer experimental refrigerator to base 1 through inclined plane 25 on, open air pump 9, adjust fixed suction cup connecting rod 3 to suitable position, make the articulated shaft and last pneumatic motor 10 and the pneumatic motor 11 of refrigerator door be in on the same straight line down, hold the refrigerator lateral wall with fixed suction cup 2, locking fixed suction cup connecting rod 3, adjust the connecting rod 7 that opens the door to suitable position, the sucking disc 6 that will open the door adsorbs with the refrigerator door and is connected, locking connecting rod 7 that opens the door, set for the number of times of opening the door through control module 23, the angle of opening the door, the frequency of opening the door, open laser counter 19, video probe 20, open pneumatic motor shift knob, can realize the automatic switch of refrigerator door.
The door opening machine for the refrigerator door switch durability test can realize quick matching of refrigerators of various models, better solves the matching of the opening tracks of the refrigerator doors, is convenient and quick to install, can automatically and repeatedly open and close the upper door and the lower door of the refrigerator simultaneously, has high safety and stability coefficient of equipment, low failure rate, high automation degree, simple structure and low cost, and is not easy to damage the refrigerator.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A door opening machine for a refrigerator door switch durability test is characterized by comprising a fixed connecting device for fixedly testing a refrigerator, a door opening connecting device for connecting a refrigerator door and a power device which is fixed on the fixed connecting device and used for driving the door opening connecting device;
the fixed connecting device comprises a base, a plurality of fixed suckers, fixed sucker connecting rods, two supporting frames and a square frame, wherein the fixed suckers are used for being adsorbed on two side walls of the test refrigerator;
the door opening connecting device comprises a plurality of door opening suckers adsorbed on the refrigerator door, a door opening connecting rod used for fixing the door opening suckers, and a connecting frame used for connecting the door opening connecting rod and the fixed connecting device; the connecting frame comprises a plurality of L-shaped horizontal supports and a framework vertically and fixedly connected at the turning points of the L-shaped horizontal supports, the L-shaped horizontal supports are provided with long holes with the extending direction in the horizontal direction, and the door opening connecting rods are vertically arranged on two adjacent L-shaped horizontal supports and can adjust the positions along the long holes;
the power device comprises an air pump, an upper pneumatic motor and a lower pneumatic motor, wherein the upper pneumatic motor and the lower pneumatic motor are respectively arranged at the opposite corners of the square frame and the base, and the lower pneumatic motor is embedded in the base and is flush with the surface of the base;
the connecting frame is fixedly connected to the rotating shafts of the upper pneumatic motor and the lower pneumatic motor, the central lines of the rotating shafts of the upper pneumatic motor and the lower pneumatic motor are located on the same straight line, and the connecting frame is driven to rotate back and forth through the rotation of the upper pneumatic motor and the rotation of the lower pneumatic motor.
2. The door opener according to claim 1, wherein the fixed sucker connecting rod penetrates a support seat provided on a guide rail embedded in both sides of the base, and the fixed sucker connecting rod is freely retractable in a direction horizontally perpendicular to the guide rail, and the fixed sucker connecting rod is further provided with a locking device for fixedly locking the fixed sucker connecting rod in the guide rail and in a direction horizontally perpendicular to the guide rail, respectively.
3. The door opening machine for the refrigerator door switch durability test according to claim 1, wherein the fixed suction cup and the door opening suction cup are vacuum suction cups, and the fixed suction cup and the door opening suction cup are connected to the air pump through vacuum generator pipes; the vacuum generator comprises an air inlet of the air pump, a vacuum air suction port, a low-pressure air chamber and an air outlet; the vacuum air suction port is L-shaped, is welded on the side wall of the low-pressure air chamber and is parallel to the air inlet of the air pump; the diameter of one end of the air inlet of the air pump, which is connected with the low-pressure air chamber, is smaller than that of the other end of the air inlet of the air pump.
4. The door opener according to claim 1, wherein the door opening link is two, an upper one and a lower one, each of which is provided with a long hole extending along a length direction of the door opening link, the door opening suction cups are elastically fixed to a base mounted on the door opening link, the base is movable up and down along the long holes of the door opening link and is provided with a locking device.
5. The door opener for the refrigerator door switch durability test according to claim 1, wherein a laser counter for counting the number of door opening times and a 360-degree rotatable video probe for monitoring the working condition of the door opener are provided on the frame in the shape of a Chinese character kou.
6. The door opener for the refrigerator door switch durability test according to claim 1, characterized in that the lower side of the base is fixedly connected with a moving device, the moving device comprises two support plates, the top ends of the support plates are fixedly connected with the lower end of the base, two moving grooves are symmetrically formed in the inner sides of the support plates, a moving plate is jointly erected in the moving grooves, and the lower side of the moving plate is fixedly connected with a roller; the upper side of the movable plate is symmetrically connected with two first hinges, the supporting plates above the movable plate are rotatably connected with threaded rods, and a worm is fixedly connected between the two threaded rods; the threaded rods are sleeved with threaded sliding blocks, the threaded sliding blocks are provided with second hinges, and the second hinges are connected with the first hinges through rotating rods; the worm is meshed with a worm wheel on the upper side, and a rotating shaft is fixedly connected to the worm wheel.
7. The door opening machine for the refrigerator door switch endurance test according to claim 1 or 5, further provided with a control module for setting and controlling the switching frequency, the switching times and the switching angle by adjusting the parameters of the pneumatic motor.
8. The door opener for the refrigerator door switch durability test of claim 7, wherein the control module comprises a processor module, a storage module, a communication module, a mobile receiving control terminal and a data acquisition module;
the storage module is used for storing the data acquired by the data acquisition module, the laser counter and the data acquired by the video probe; the processor module is used for calling data in the storage module, receiving an instruction signal of the mobile receiving control terminal received by the communication module and performing data processing, and sending a parameter adjusting signal to the air pump and the air motor, and the communication module transmits the data in the storage module to the mobile receiving control terminal in real time so as to be called and read by a tester in real time;
the processor module is one of an FPGA, a DSP and a singlechip;
the communication module comprises a 3G/4G/5G wireless communication module, a WIFI module, an NFC module, a Bluetooth module and a ZIGBEE communication module;
the data acquisition module comprises sensors arranged on the air pump, the pneumatic motor and the door opening connecting rod and a temperature and humidity sensor arranged on the door opening machine;
the storage module comprises a random access memory module, an SD card module and a USB interface module, wherein the random access memory module is used for being matched with the processor module to increase the speed of memory and data processing, the SD card module is used for storing various acquired data for a long time, and the USB interface module is convenient for exporting copied data;
the mobile receiving control terminal comprises mobile receiving equipment and an APP installed on the mobile receiving equipment; the mobile receiving equipment is one of an intelligent bracelet, an intelligent mobile phone and a tablet personal computer.
9. The door opener for the refrigerator door switch durability test of claim 8, wherein the control module further comprises a display module and an alarm module, the display module is used for displaying the real-time data collected by the data collection module and the door opening times collected by the laser counter;
the alarm module comprises a voice alarm module and a light alarm module and is used for sending out an alarm signal when the collection parameter value exceeds a preset threshold value.
10. The door opener for the refrigerator door switch durability test according to claim 8, wherein the processor module, the storage module, the communication module are integrated on the same circuit board and mounted on the side surface of the support frame through a protection box;
the refrigerator is characterized in that the front side of the base is also provided with an inclined plane for the refrigerator to move up and down, the top end of the inclined plane is hinged with the upper front edge of the base, and the bottom end of the inclined plane can move freely.
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| CN201810346622.8A CN108680345B (en) | 2018-04-18 | 2018-04-18 | Door opening machine for refrigerator door switch durability test |
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| CN201810346622.8A CN108680345B (en) | 2018-04-18 | 2018-04-18 | Door opening machine for refrigerator door switch durability test |
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| CN108680345B true CN108680345B (en) | 2019-12-31 |
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| CN102410924B (en) * | 2011-08-08 | 2013-08-14 | 山东省科学院海洋仪器仪表研究所 | Door body hinge durability detection method and apparatus thereof |
| CN205049327U (en) * | 2015-08-25 | 2016-02-24 | 深圳市昌恒自动化设备有限公司 | But life test of setting switch door number of times is quick -witted |
| CN206348140U (en) * | 2016-12-29 | 2017-07-21 | 上海天祥质量技术服务有限公司 | A kind of multifunctional household electrical appliance switch gate durable test device |
| CN206710111U (en) * | 2017-05-18 | 2017-12-05 | 九牧厨卫股份有限公司 | A kind of built-in cabinet door drawer switch test device |
| CN207095878U (en) * | 2017-07-26 | 2018-03-13 | 上海竟田电器检测技术有限公司 | Door switch life test machine |
| CN207007491U (en) * | 2017-07-26 | 2018-02-13 | 中检质技检验检测科学研究院有限公司 | A kind of appliance door life tests system |
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