CN107796720B - Hardness and drop test device for OLED curved screen of smart phone - Google Patents
Hardness and drop test device for OLED curved screen of smart phone Download PDFInfo
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- CN107796720B CN107796720B CN201711304277.3A CN201711304277A CN107796720B CN 107796720 B CN107796720 B CN 107796720B CN 201711304277 A CN201711304277 A CN 201711304277A CN 107796720 B CN107796720 B CN 107796720B
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- 230000005389 magnetism Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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Abstract
The invention discloses a device for testing the hardness and the drop of an OLED curved screen of a smart phone, which comprises a base, a lifting motor, a lead screw, a lifting plate, a rotating plate, a driving motor and an impact head, wherein the lower end of an output shaft of the lifting motor is connected with the lead screw through a coupler, the lead screw is also in threaded connection with the lifting plate, the upper end of the impact rod is in threaded connection with a matching block, and the lower end of the impact rod is also connected with the impact head. The mobile phone is clamped by indirectly driving the clamping arms on the two sides to move towards the middle through the principle that the electromagnet generates magnetism after being electrified, so that the mobile phones with different lengths are clamped, the universality of the device is improved, the clamping arms can be quickly loosened during a drop test, and the device is simple and effective; the drop test can be carried out after the hardness detection, the detection period is shortened, and the height of the lifting plate is adjusted through the lifting motor, so that the drop tests with different heights are realized, and the method is simple and effective.
Description
Technical Field
The invention relates to a testing device, in particular to a device for testing hardness and drop of an OLED curved screen of a smart phone.
Background
The OLED display is a display made using organic electroluminescent diodes. Because of having the self-luminous organic electroluminescent diode, the display panel has the excellent characteristics of no need of backlight source, high contrast, thin thickness, wide viewing angle, high reaction speed, wide use temperature range, simpler structure and process and the like, and is considered as a new application technology of the next generation of flat panel display; the industrial prospect of the OLED is very wide in China, and enterprises in the industry are also striving to accumulate development experience, but factors such as a weak upstream link of an industrial chain in China and a lack of matching capability of the industry create a large development obstacle for manufacturers.
The existing testing device cannot integrate hardness testing and drop testing into a whole, the testing procedure is complex, and meanwhile, the mobile phone is often held by hands during drop testing, and then free-fall movement is carried out, and the testing means is not standard.
Disclosure of Invention
The invention aims to provide a device for testing the hardness and the drop of an OLED curved screen of a smart phone, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a hardness and drop test device for an OLED curved screen of a smart phone comprises a base, a lifting motor, a lead screw, a lifting plate, a rotating plate, a driving motor and an impact head, wherein second guide columns and first guide columns are arranged on the left side and the right side of the upper surface of the base, the second guide columns and the first guide columns are connected with the base through threads, a cover plate is welded at the upper ends of the second guide columns and the first guide columns, the lifting motor is fixedly arranged at the central position of the upper side of the cover plate through a support, an output shaft of the lifting motor vertically downwards penetrates out of the cover plate, the lower end of the output shaft of the lifting motor is connected with the lead screw through a coupler, the lower end of the lead screw is rotatably arranged on the base through a bearing, the lifting plate is further connected with the lead screw through threads, the left side and the right side of the lifting plate are further slidably arranged on the first guide columns and the second guide columns, and the first, thereby the lifting plate moves up and down along with the rotation direction of the lifting motor without rotating.
The mobile phone lifting device is characterized in that a left connecting plate and a right connecting plate are vertically welded on the lower side of the lifting plate, a rotating shaft is rotatably installed between the left connecting plate and the right connecting plate through a bearing, the right end of the rotating shaft penetrates out of the right connecting plate and is connected with a rocking wheel, a rotating plate is fixedly connected to the rotating shaft, a hollow structure is arranged in the rotating plate, a left cavity and a right cavity are arranged in the rotating shaft, electromagnets are arranged in the cavities on the left side and the right side, the two groups of electromagnets are adjacent in position and are provided with sliding blocks in a sliding manner, a first spring is connected between the outer side of each sliding block and the inner wall of the rotating plate, a magnet is arranged on the inner side of each sliding block and is opposite to the position of each electromagnet, clamping arms are fixedly installed on the upper side of each sliding block, a mobile phone is clamped between, the magnetic force is generated to the magnet, so that the sliding blocks on the two sides are driven to move towards the middle, and the sliding blocks drive the clamping arms to move towards the middle to clamp the mobile phone.
A fixing frame is welded on the upper side of the lifting plate, a wedge block is slidably mounted on the fixing frame, the lower surface of the wedge block is an inclined surface, a second spring is connected between the left side of the wedge block and the fixing frame, a connecting plate is welded on the right side of the wedge block, a driving motor is fixedly arranged on the fixed frame through a bracket, an output shaft of the driving motor is forward, a round rotating wheel is arranged on the output shaft of the driving motor in an interference fit manner, 3-6 groups of inclined shifting blocks are arranged on the excircle of the round rotating wheel, the central point of lifter plate puts still slidable mounting has the impact bar, is clearance fit between impact bar and the lifter plate, and impact bar upper end threaded connection has the cooperation piece, and the upper surface of cooperation piece also is inclined plane and cooperation piece and wedge looks adaptation, is connected with reset spring between cooperation piece downside and the lifter plate upper surface, and the impact bar passes from the reset spring center, and the lower extreme of impact bar still is connected with the impact head.
As a further scheme of the invention: the lifting motor is a servo motor.
As a still further scheme of the invention: the inclined shifting blocks are distributed in a circular array around the circle center of the circular rotating wheel.
As a still further scheme of the invention: the lower side of the connecting plate is also provided with a stop dog matched with the inclined shifting block on the excircle of the round rotating wheel.
As a still further scheme of the invention: and a return spring is connected between the lower side of the matching block and the upper surface of the lifting plate, and the impact rod penetrates through the center of the return spring.
As a still further scheme of the invention: the impact head is a stainless steel ball, and the diameter of the impact head is 4-5 cm.
As a still further scheme of the invention: the center of the upper surface of the base is also provided with a falling groove, the falling groove is positioned under the rotating plate, and the depth of the falling groove is 4-5 cm.
Compared with the prior art, the invention has the beneficial effects that: 1. through the principle that magnetism is produced after the electro-magnet circular telegram, the arm lock that indirectly drives both sides removes to the centre and presss from both sides the cell-phone to satisfy the cell-phone of different length and press from both sides tightly, improve the commonality of device, and the arm lock can loosen rapidly when drop test, and is simple effective.
2. The hardness test of cell-phone screen is realized through constantly assaulting of strikeing the head, and simple structure and testing cycle are short, and for artifical manual impact, labour saving and time saving more can also carry out the drop test after hardness detects simultaneously, shortens testing cycle, crosses the height that elevator motor adjusted the lifter plate to realize not co-altitude drop test, it is simple effective.
Drawings
Fig. 1 is a schematic structural diagram of a device for testing hardness and drop of an OLED curved screen of a smart phone.
Fig. 2 is a schematic structural diagram of part a amplification in a smartphone OLED curved screen hardness and drop test device.
Fig. 3 is a schematic structural diagram of part B of an OLED curved screen hardness and drop test device for a smart phone.
In the figure: 1-base, 2-first guide column, 3-second guide column, 4-cover plate, 5-lifting motor, 6-lead screw, 7-lifting plate, 8-left connecting plate, 9-right connecting plate, 10-rotating shaft, 11-rotating plate, 12-rocking wheel, 13-cavity, 14-electromagnet, 15-sliding block, 16-magnet, 17= first spring, 18-clamping arm, 19-mobile phone, 20-fixing frame, 21-wedge block, 22-second spring, 23-connecting plate, 24-driving motor, 25-round rotating wheel, 26-inclined shifting block, 27-matching block, 28-impact rod, 29-impact head and 30-drop groove.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a device for testing hardness and drop of an OLED curved screen of a smart phone comprises a base 1, a lifting motor 5, a screw 6, a lifting plate 7, a rotating plate 11, a driving motor 24 and an impact head 29, wherein second guide posts 3 and first guide posts 2 are arranged on the left and right sides of the upper surface of the base 1, the second guide posts 3 and the first guide posts 2 are connected with the base 1 through threads, a cover plate 4 is welded on the upper ends of the second guide posts 3 and the first guide posts 2, the lifting motor 5 is fixedly installed on the upper center of the cover plate 4 through a bracket, the lifting motor 5 is a servo motor, an output shaft of the lifting motor 5 vertically downwards penetrates through the cover plate 4, the lower end of the output shaft of the lifting motor 5 is connected with the screw 6 through a coupler, the lower end of the screw 6 is rotatably installed on the base 1 through a bearing, the lifting plate 7 is further connected on the screw 6 through threads, the left and right sides of the lifting plate 7 are further slidably mounted on the first guide column 2 and the second guide column 3, and the first guide column 2 and the second guide column 3 limit the lifting plate 7, so that the lifting plate 7 can move up and down along the rotation direction of the lifting motor 5 and cannot rotate.
The lower side of the lifting plate 7 is vertically welded with a left connecting plate 8 and a right connecting plate 9, a rotating shaft 10 is rotatably installed between the left connecting plate 8 and the right connecting plate 9 through a bearing, the right end of the rotating shaft 10 penetrates out of the right connecting plate 9 and is connected with a rocking wheel 12, the rotating shaft 10 is also fixedly connected with a rotating plate 11, the rotating plate 11 is internally of a hollow structure, a left cavity 13 and a right cavity 13 are arranged inside the rotating shaft 10, electromagnets 14 are arranged inside the cavities 13 at the left side and the right side, the two groups of electromagnets 14 are adjacent in position, a sliding block 15 is further slidably installed inside the cavity 13, a first spring 17 is connected between the outer side of the sliding block 15 and the inner wall of the rotating plate 11, a magnet 16 is arranged inside the sliding block 15, the position of the magnet 16 is opposite to the position of the electromagnet 14, clamping arms 18 are further fixedly installed on the upper side of the sliding block 15, then the electromagnet 14 is continuously electrified, when the electromagnet 14 is electrified, magnetism is generated, attraction force is generated on the magnet 16, the sliding blocks 15 on the two sides are driven to move towards the middle, and the sliding blocks 15 drive the clamping arms 18 to move towards the middle to clamp the mobile phone 19.
The utility model discloses a pneumatic impact mechanism, including lifter plate 7, mount 20, sliding mounting wedge 21 on mount 20, the lower surface of wedge 21 is the inclined plane, still is connected with second spring 22 between the left side of wedge 21 and the mount 20, and the right side welding of wedge 21 has connecting plate 23, there is driving motor 24 on the mount 20 through support fixed mounting, and driving motor 24's output shaft forward and interference fit installs circular runner 25 on driving motor 24's the output shaft, is equipped with 3-6 group's slope shifting block 26 on circular runner 25's the excircle, and slope shifting block 26 distributes about the circular array in the centre of a circle of circular runner 25, connecting plate 23 downside also is equipped with the dog of slope shifting block 26 looks adaptation on the excircle with circular runner 25, the central point of lifter plate 7 still slidable mounting has impact bar 28, is clearance fit between impact bar 28 and the lifter plate 7, and impact bar 28 upper end threaded connection has cooperation piece 27, the upper surface of the matching block 27 is also an inclined surface, the matching block 27 is matched with the wedge block 21, a reset spring is connected between the lower side of the matching block 27 and the upper surface of the lifting plate 7, the impact rod 28 penetrates through the center of the reset spring, the lower end of the impact rod 28 is also connected with an impact head 29, the impact head 29 is a stainless steel ball, the diameter of the impact head 29 is 4-5cm, a falling groove 30 is further formed in the center of the upper surface of the base 1, the falling groove 30 is located under the rotating plate 11, and the depth of the falling groove 30 in the groove is 4-5 cm.
The working principle of the invention is as follows: when the mobile phone is operated, the mobile phone 19 is firstly placed between the clamping arms 18 at the left side and the right side, then the electromagnet 14 is continuously electrified, when the electromagnet 14 is electrified, magnetism is generated, attraction force is generated on the magnet 16, so that the sliding blocks 15 at the two sides are driven to move towards the middle, the sliding blocks 15 drive the clamping arms 18 to move towards the middle, the mobile phone 19 is clamped, then the driving motor 24 is electrified, the driving motor 24 starts to rotate clockwise, the circular rotating wheel 25 is driven to rotate clockwise, when the inclined shifting block 26 on the circular rotating wheel 25 is contacted with the stop block at the lower side of the connecting plate 23, the connecting plate 23 drives the wedge block 21 to move rightwards, when the wedge block 21 moves rightwards, the wedge block is matched with the matching block 27, so that the impact rod 28 is extruded to slide downwards, the impact rod 28 drives the impact head 29 to start continuous impact on the screen of the, then the rocking wheel 12 is rotated anticlockwise to enable the mobile phone 19 to turn over for 180 degrees, then the electromagnet 14 is powered off, when the electromagnet 14 loses power, magnetism is lost, attraction force is not applied to the magnet 16, under the action of restoring force of the first spring 17, the clamping arm 18 slides towards two sides, the clamping arm 18 is separated from the mobile phone 19, the mobile phone 19 starts to move in a free falling body under the action of gravity, a falling test is carried out, finally the mobile phone 19 falls into the falling groove 30, then the mobile phone 19 is picked up to observe whether structural or functional damage exists, whether the falling test is qualified or not is judged, and the height of the lifting plate 7 can be adjusted through the lifting motor 5, so that falling tests with different heights are realized.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and variations can be made within the knowledge of those skilled in the art without departing from the spirit of the present patent.
Claims (4)
1. The utility model provides a smart mobile phone OLED curved surface screen hardness and drop test device, includes base (1), elevator motor (5), lead screw (6), lifter plate (7), changes board (11), driving motor (24) and strikes head (29), its characterized in that: the left and right sides of the upper surface of the base (1) are respectively provided with a second guide post (3) and a first guide post (2), the second guide post (3) and the first guide post (2) are connected with the base (1) through threads, the upper ends of the second guide post (3) and the first guide post (2) are further welded with a cover plate (4), the upper center position of the cover plate (4) is fixedly provided with a lifting motor (5) through a support, an output shaft of the lifting motor (5) vertically downwards penetrates out of the cover plate (4), the lower end of the output shaft of the lifting motor (5) is connected with a lead screw (6) through a coupler, the lower end of the lead screw (6) is rotatably installed on the base (1) through a bearing, the lead screw (6) is further connected with a lifting plate (7) through threads, the left and right sides of the lifting plate (7) are further slidably installed on the first guide post (2) and the second guide post (3), and the lower side of the lifting plate (7) is further vertically welded with a left connecting plate, a rotating shaft (10) is rotatably installed between the left connecting plate (8) and the right connecting plate (9) through a bearing, the right end of the rotating shaft (10) penetrates through the right connecting plate (9) and is connected with a rocking wheel (12), a rotating plate (11) is fixedly connected to the rotating shaft (10), the rotating plate (11) is of a hollow structure, a left cavity and a right cavity (13) are formed in the rotating shaft (10), electromagnets (14) are arranged in the cavities (13) on the left side and the right side, the two groups of electromagnets (14) are adjacent in position, a sliding block (15) is further slidably installed in each cavity (13), a first spring (17) is connected between the outer side of each sliding block (15) and the inner wall of each rotating plate (11), magnets (16) are arranged on the inner side of each sliding block (15), the magnets (16) are opposite to the electromagnets (14), and clamping arms (18) are further; the improved lifting board is characterized in that a fixing frame (20) is welded on the upper side of the lifting board (7), a wedge block (21) is slidably mounted on the fixing frame (20), the lower surface of the wedge block (21) is an inclined surface, a second spring (22) is further connected between the left side of the wedge block (21) and the fixing frame (20), a connecting plate (23) is welded on the right side of the wedge block (21), a driving motor (24) is fixedly mounted on the fixing frame (20) through a support, a circular rotating wheel (25) is mounted on the output shaft of the driving motor (24) in a forward manner and in an interference fit manner, 3-6 groups of inclined shifting blocks (26) are arranged on the excircle of the circular rotating wheel (25), an impact rod (28) is further slidably mounted at the central position of the lifting board (7), the impact rod (28) and the lifting board (7) are in a clearance fit manner, and a matching block, the upper surface of cooperation piece (27) also is inclined plane and cooperation piece (27) and wedge (21) looks adaptation, and the lower extreme of impact rod (28) still is connected with impact head (29), impact head (29) are the stainless steel ball, and impact head (29) diameter is 4-5cm, base (1) upper surface central point puts and still is equipped with drop groove (30), and drop groove (30) are located commentaries on classics board (11) under, and the inslot degree of depth of drop groove (30) is 4-5cm, be connected with reset spring between cooperation piece (27) downside and lifter plate (7) upper surface, impact rod (28) pass from the reset spring center.
2. The device for testing the hardness and the drop of the OLED curved screen of the smart phone according to claim 1, characterized in that: the lifting motor (5) is a servo motor.
3. The device for testing the hardness and the drop of the OLED curved screen of the smart phone according to claim 1, characterized in that: the inclined shifting blocks (26) are distributed in a circular array around the center of the circular rotating wheel (25).
4. The device for testing the hardness and the drop of the OLED curved screen of the smart phone according to claim 1, characterized in that: the lower side of the connecting plate (23) is also provided with a stop block matched with an inclined shifting block (26) on the excircle of the round rotating wheel (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711304277.3A CN107796720B (en) | 2017-12-11 | 2017-12-11 | Hardness and drop test device for OLED curved screen of smart phone |
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| CN201711304277.3A CN107796720B (en) | 2017-12-11 | 2017-12-11 | Hardness and drop test device for OLED curved screen of smart phone |
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| CN107796720A CN107796720A (en) | 2018-03-13 |
| CN107796720B true CN107796720B (en) | 2020-05-01 |
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| JPH0621849B2 (en) * | 1989-02-13 | 1994-03-23 | 工業技術院長 | Conductive indenter for material testing machine |
| CN104089834A (en) * | 2014-07-25 | 2014-10-08 | 深圳市邦华电子有限公司 | Steel ball impact tester |
| CN104849157A (en) * | 2015-05-22 | 2015-08-19 | 中国矿业大学 | Continuous impact crushing test device |
| CN205209723U (en) * | 2015-11-13 | 2016-05-04 | 苏州苏勃检测技术服务有限公司 | Free fall test machine |
| CN107091784B (en) * | 2017-02-28 | 2019-10-01 | 丁丽军 | A kind of steel ball impact testing apparatus |
| CN207650044U (en) * | 2017-12-11 | 2018-07-24 | 吴国章 | A kind of smart mobile phone OLED Curved screens hardness and drop test device |
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