CN111377230A - Automatic feeding and discharging mechanism and Mini LED screen chip testing device - Google Patents
Automatic feeding and discharging mechanism and Mini LED screen chip testing device Download PDFInfo
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- CN111377230A CN111377230A CN202010322508.9A CN202010322508A CN111377230A CN 111377230 A CN111377230 A CN 111377230A CN 202010322508 A CN202010322508 A CN 202010322508A CN 111377230 A CN111377230 A CN 111377230A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/902—Devices for picking-up and depositing articles or materials provided with drive systems incorporating rotary and rectilinear movements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention belongs to the technical field of testing of Mini LED screen chips and discloses an automatic loading and unloading mechanism and a testing device of a Mini LED screen chip. This unloading mechanism in automation includes: a frame; the first drawer box is arranged on the frame in a sliding mode along a first direction and used for bearing a workpiece to be tested; the second drawer box is arranged on the frame in a sliding mode along the first direction and is parallel to the first drawer box, the second drawer box is used for bearing finished workpieces which are tested, and the conveying direction of the finished workpieces is opposite to that of the workpieces to be tested; and the output end of the lifting driving source is connected to the frame, and the lifting driving source can drive the frame to move along a second direction, wherein the first direction and the second direction are arranged perpendicular to each other. The automatic feeding and discharging mechanism reduces labor burden and effectively improves production efficiency under the combined action of the lifting driving source, the frame, the first drawer box and the second drawer box.
Description
Technical Field
The invention relates to the technical field of testing of Mini LED screen chips, in particular to an automatic feeding and discharging mechanism and a MiniLED screen chip testing device.
Background
With the pursuit of ultra-clear display by the public, the display technology needs higher contrast, the Mini LED called the sub-era display technology becomes the field of active layout of the public manufacturers, and the LCD (liquid crystal) display screen adopting the Mini LED backlight technology is far superior to the current LCD display in brightness, contrast, color reduction and energy saving, even can compete with the AMO LED, and can control the production cost. As the number of LEDs used for panel backlighting increases greatly, new technologies can greatly improve the HDR performance of LCD screens.
The Mini LED screen chip belongs to a precise component of a novel display screen product, and along with the vigorous development of the electronic product manufacturing industry, a production unit has higher and higher precision requirements on the Mini LED screen chip aiming at the quality of the Mini LED screen chip, so that the Mini LED screen chip needs to be tested.
Traditional test equipment relies on the artifical Mini LED screen chip of transport of operating personnel to realize unloading on the Mini LED screen chip, operating personnel intensity of labour is bigger, and unloading speed is slow, influences the operating efficiency. Meanwhile, when the Mini LED screen chip is tested, a probe needs to be manually operated to contact with a contact of the Mini LED screen chip, the problem that the probe cannot contact with the contact of the Mini LED screen chip exists, the testing point position of the Mini LED screen chip is not accurate enough, the stability is poor, the testing precision is influenced by artificial uncertain factors, and the testing precision is low.
Disclosure of Invention
The invention aims to provide an automatic loading and unloading mechanism and a Mini LED screen chip testing device, which reduce the labor burden, improve the testing speed by 5-6 times compared with the prior art and improve the production efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic feeding and discharging mechanism comprises:
a frame;
the first drawer box is arranged on the frame in a sliding mode along a first direction and used for bearing a workpiece to be tested;
the second drawer box is arranged on the frame in a sliding mode along the first direction and is parallel to the first drawer box, the second drawer box is used for bearing finished workpieces which are tested, and the conveying direction of the finished workpieces is opposite to the conveying direction of the workpieces to be tested;
and the output end of the lifting driving source is connected to the frame, and the lifting driving source can drive the frame to move along a second direction, wherein the first direction and the second direction are arranged perpendicular to each other.
Preferably, the guide device further comprises a first guide assembly, wherein the first guide assembly comprises:
a first guide rail disposed at the bottom of the first drawer box;
the first guide rail is in sliding fit with the first guide groove;
the second guide rail is arranged at the bottom of the first sliding plate;
the first fixing plate is arranged on the frame, a second guide groove is formed in the first fixing plate, and the second guide rail is in sliding fit with the second guide groove.
Preferably, the guide device further comprises a second guide assembly, wherein the second guide assembly comprises:
the first sliding rail is arranged at the bottom of the second drawer box;
the first sliding rail is in sliding fit with the first sliding groove;
the second sliding rail is arranged at the bottom of the first moving plate;
the first mounting plate is arranged on the frame, a second sliding groove is arranged on the first mounting plate, and the second sliding rail is in sliding fit with the second sliding groove.
Preferably, the drawer assembly further comprises an alignment assembly, wherein the alignment assembly comprises an alignment driving source and a stopper, an output end of the alignment driving source is connected to the stopper, and the alignment driving source can drive the stopper and push the finished workpiece to move along the first direction, so that the edge of the finished workpiece is flush with the edge of the second drawer box.
In order to achieve the above object, the present invention further provides an automatic Mini LED screen chip testing apparatus, which includes a carrying manipulator, a testing mechanism and the above automatic loading and unloading mechanism, wherein the testing mechanism is used for testing the workpiece to be tested, and the carrying manipulator is configured to carry the workpiece to be tested in the first drawer box to the testing mechanism and carry the finished workpiece after testing to the second drawer box.
Preferably, the testing mechanism comprises an adjusting platform and a crimping component, the adjusting platform is configured to bear the workpiece to be tested and can adjust the position of the workpiece to be tested relative to the crimping component, and the crimping component is configured to abut against the workpiece to be tested and is electrically connected with the workpiece to be tested.
Preferably, the adjustment platform comprises:
the first bearing frame is used for bearing the workpiece to be tested;
a first driving source, an output end of which is connected to the first bearing frame, wherein the first driving source can drive the first bearing frame to move along the first direction;
the second bearing frame is connected to the bottom of the first bearing frame;
and the output end of the second driving source is connected to the second bearing frame, and the second driving source can drive the second bearing frame to move along a third direction which is respectively perpendicular to the first direction and the second direction.
Preferably, the crimping assembly comprises:
a crimping drive source and a crimping platform, the output end of the crimping drive source is connected to the crimping platform,
the rotary driving source is arranged on the crimping platform;
the crimping driving source can drive the crimping platform is followed the second direction removes, rotary drive source can drive the pressure head rotates, makes the pressure head with the work piece electric connection that awaits measuring.
Preferably, the adjustment platform further comprises:
the sucker is arranged on the first bearing frame;
and the vacuum generator is communicated with the sucker and is used for adsorbing the workpiece to be tested.
Preferably, the testing mechanism further comprises a calibration component, the calibration component is arranged below the adjusting platform, and the calibration component is used for picking up the calibration point of the workpiece to be tested.
The invention has the beneficial effects that:
according to the automatic feeding and discharging mechanism, the first drawer box is arranged, an operator can directly pull out the first drawer box by using the principle that a drawer slides, and compared with a manual moving mode, the automatic feeding and discharging mechanism is time-saving and labor-saving and saves the feeding time of a workpiece to be tested; through setting up the second drawer box, operating personnel can pull out the second drawer box very easily, compares the mode of artifical removal, and operating personnel just can realize the unloading of finished product work piece with less power, has reduced operating personnel's intensity of labour. The first drawer box and the second drawer box play a bearing role and also play a role in conveying a part of workpieces along the first direction. Through setting up lift driving source and frame, the first drawer box of lift driving source passing through the frame can be driven simultaneously and the second drawer box removes, has played the conveying effect of work piece along the second direction. Under the combined action of the lifting driving source, the frame, the first drawer box and the second drawer box, the labor burden is reduced, and the production efficiency is effectively improved.
According to the Mini LED screen chip testing device provided by the invention, through the mutual matching of the automatic feeding and discharging mechanism, the carrying manipulator and the testing mechanism, the automation degree is high, the labor intensity of operators is reduced, the production time is saved, the operation efficiency is higher, and the best guarantee is obtained in the aspect of the quality of the Mini LED screen chip.
Drawings
FIG. 1 is a schematic structural diagram of a Mini LED screen chip testing device according to the present invention;
FIG. 2 is a schematic structural diagram of an automatic loading and unloading mechanism in the Mini LED screen chip testing device of the present invention;
FIG. 3 is a schematic structural diagram of a Mini LED screen chip testing device showing a first guiding component and a second guiding component according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
fig. 5 is a schematic structural diagram of a testing mechanism in the Mini LED screen chip testing device of the present invention.
In the figure:
1. an automatic loading and unloading mechanism; 2. carrying the mechanical arm; 3. a testing mechanism; 4. a frame; 5. a buffer platform;
11. a frame; 12. a first drawer box; 13. a second drawer box; 14. a lifting drive source; 15. a support frame; 16. a lead screw; 17. alignment assembly
121. A first guide rail; 122. a first slide plate; 123. a second guide rail; 124. a first fixing plate;
131. a first slide rail; 132. a first moving plate; 133. a second slide rail; 134. a first mounting plate;
111. a slider; 151. a linear slide rail;
171. an alignment drive source; 172. a stopper;
31. adjusting the platform; 32. a crimping assembly; 33. a base station; 34. calibrating the component;
311. a first bearing frame; 312. a first drive source; 313. a second carrying frame; 314. a second drive source;
321. a crimping drive source; 322. crimping the platform; 323. a rotary drive source; 324. a pressure head;
331. a through hole;
341. a mounting seat; 342. a camera.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment provides a testing device for a Mini LED screen chip, which is used for testing electronic products, in particular for testing the Mini LED screen chip. Mini, by definition in the industry, is a slightly larger dimension than Micro, with dimensions of approximately between 80-300 μm. Practitioners of LED chips have already made LED chips in the size meaning of Mini before the word of Mini LED appears, but the chips mainly made at the time are based on the LED chips which are installed normally, and are mainly conventional indoor and outdoor display screens and small-distance display screens in the application of the display field. To distinguish between LED chiplets for display-ready, Mini LEDs were created to refer to flip-chip LED chips with chip sizes between 80-300 μm for display applications. As shown in fig. 1, the Mini LED screen chip testing device includes a frame 4, an automatic loading and unloading mechanism 1, a carrying manipulator 2 and a testing mechanism 3, wherein the automatic loading and unloading mechanism 1, the carrying manipulator 2 and the testing mechanism 3 are arranged on the frame 4, and the frame 4 plays a role of integral support. The length direction of the frame 4 is defined as a first direction, the height direction of the frame 4 is defined as a second direction, the width direction of the frame 4 is defined as a third direction, and the first direction, the second direction and the third direction are mutually perpendicular in pairs, wherein the first direction, the second direction and the third direction only represent the space direction and have no substantial significance.
This Mini LED screen chip testing arrangement is in the course of the work, operating personnel will await measuring the work piece and place in automatic unloading mechanism 1 from one side of automatic unloading mechanism 1 on first, transport manipulator 2 is configured as will await measuring the work piece of awaiting measuring in automatic unloading mechanism 1 and transports to accredited testing organization 3, accredited testing organization 3 is used for testing the work piece that awaits measuring, form the finished product work piece after accomplishing the test, then transport manipulator 2 will be located the finished product work piece on accredited testing organization 3 and will transport to automatic unloading mechanism 1 from the opposite side of automatic unloading mechanism 1 on for operating personnel takes out and is used for the follow-up process. The Mini LED screen chip testing device that this embodiment provided, through unloading mechanism 1, transport manipulator 2 and the mutually supporting of accredited testing organization 3 in the automation, degree of automation is high, reduces operating personnel's intensity of labour, saves production time, and the operating efficiency is higher.
Further, as shown in fig. 2, the automatic feeding and discharging mechanism 1 includes a frame 11, a first drawer box 12, a second drawer box 13, a lifting drive source 14 and a support frame 15, the support frame 15 is disposed on the frame 4, the support frame 15 plays a supporting role, the lifting drive source 14 is disposed on the support frame 15, an output end of the lifting drive source 14 is connected to the frame 11, and the lifting drive source 14 can drive the frame 11 to move along the second direction, so that the frame 11 can be lifted and lowered. A first drawer box 12 and a second drawer box 13 are respectively arranged on the frame 11 in a sliding manner along a first direction, the first drawer box 12 and the second drawer box 13 are arranged in parallel, the first drawer box 12 is used for bearing a workpiece to be tested, the second drawer box 13 is used for bearing a finished workpiece to be tested, and the conveying direction of the finished workpiece is opposite to the conveying direction of the workpiece to be tested.
The automatic feeding and discharging mechanism 1 provided by this embodiment drives the frame 11 to move along the second direction when feeding is needed, so that the workpieces to be tested can move to a fixed height in sequence, the carrying manipulator 2 can accurately take out the workpieces to be tested from the first drawer box 12, and meanwhile, an operator can manually place the workpieces to be tested in the empty first drawer box 12 to complete the feeding process. When blanking is needed, the lifting drive source 14 drives the frame 11 to sequentially move to a fixed height along the second direction, so that the conveying manipulator 2 accurately conveys the tested finished workpieces to the second drawer box 13, and meanwhile, an operator can manually take out the finished workpieces from the second drawer box 13 to complete the blanking action process.
By arranging the first drawer box 12 and utilizing the principle of sliding of the drawer, an operator can directly pull out the first drawer box 12, and compared with a manual moving mode, the method is time-saving and labor-saving, and saves the feeding time of a workpiece to be tested; through setting up second drawer box 13, operating personnel can pull out second drawer box 13 very easily, compares the mode that the manual work removed, and operating personnel just can realize the unloading of finished product work piece with less power, has reduced operating personnel's intensity of labour. The first drawer box 12 and the second drawer box 13, while performing a load-bearing function, also assume a role of conveying a part of the workpieces in the first direction. By arranging the lifting driving source 14 and the frame 11, the lifting driving source 14 can simultaneously drive the first drawer box 12 and the second drawer box 13 to move through the frame 11, so that the conveying function of the workpiece to be tested and the finished workpiece along the second direction is realized. Under the combined action of the lifting driving source 14, the frame 11, the first drawer box 12 and the second drawer box 13, the labor burden is reduced, and the production efficiency is effectively improved.
Further, above-mentioned lift driving source 14 specifically is servo motor, and servo motor sets up on support frame 15 along the second direction, and servo motor has lead screw 16 through the coupling joint, and screw nut wears to locate lead screw 16 and is connected in frame 11, and servo motor opens the back, and along with servo motor's rotation, screw nut can also follow the axial direction removal of lead screw 16 when around screw 16 pivoted to drive frame 11 and realize elevating movement. Because the frame 11 has a large external dimension, in order to ensure a balance effect during the movement of the frame 11, preferably, the number of the lifting drive sources 14, the number of the lead screws 16 and the number of the lead screw nuts are two, and each lifting drive source 14 is in transmission connection with one lead screw nut through one lead screw 16. The two screw nuts are respectively arranged on two sides of the frame 11 to realize the stability of the frame 11 in the lifting process.
In order to further ensure the balance of the frame 11 in the lifting process, the linear sliding rail 151 is arranged on the support frame 15 along the second direction, the sliding block 111 is arranged on one side of the frame 11, and the guiding effect is achieved through the sliding fit of the sliding block 111 and the linear sliding rail 151, so that the smoothness and the stability of the frame 11 in the moving process are ensured. Optionally, the number of the linear sliding rails 151 and the number of the sliding blocks 111 are two, the two linear sliding rails 151 are respectively disposed on two sides of the supporting frame 15, the two sliding blocks 111 are respectively disposed on two sides of the frame 11, and each sliding block 111 is in sliding fit with one linear sliding rail 151, so that the frame 11 can move up and down smoothly.
The frame 11 has a rectangular shape, and the frame 11 is divided into two regions by a rectangular frame disposed inside the frame, wherein one region is used for mounting the first drawer box 12, and the other region is used for mounting the second drawer box 13. It is understood that, in order to increase the capacity, the number of the first drawer boxes 12 and the number of the second drawer boxes 13 are three, three first drawer boxes 12 are disposed in the first region at intervals in parallel in the second direction, three second drawer boxes 13 are disposed in the second region at intervals in parallel in the second direction, and one first drawer box 12 and one second drawer box 13 adjacent thereto are maintained in the same plane, so that the three first drawer boxes 12 and the three second drawer boxes 13 are arranged in a matrix.
Wherein, a plurality of work pieces of awaiting measuring can be placed to every first drawer box 12, and the both sides of first drawer box 12 are open structure, and operating personnel can put into the work piece of awaiting measuring from the opening of one side of first drawer box 12, and transport manipulator 2 can snatch the work piece of awaiting measuring from the opposite side opening of first drawer box 12 for operating personnel and transport manipulator 2 respectively have their place in the material loading process, and their respective work is not interfered and is influenced. Every second drawer box 13 can place a plurality of finished product work pieces, the both sides of second drawer box 13 are open structure, carrying mechanical arm 2 can be followed one side opening that is close to carrying mechanical arm 2 of second drawer box 13, place the finished product work piece in second drawer box 13, operating personnel can follow one side opening that carrying mechanical arm 2 was kept away from to first drawer box 12 and take out the finished product work piece, make operating personnel and carrying mechanical arm 2 respectively obtain their place in the unloading in-process, its respective work is not interfered and is influenced.
It is envisaged that the first drawer box 12 and the second drawer box 13 are similar in construction, differing only in the particular location provided on the frame 11 and the particular type of workpiece contained therein.
Further, as shown in fig. 3, the automatic loading and unloading mechanism 1 further includes a first guiding component, which is disposed on the frame 11 and used for guiding the first drawer box 12 along the first direction. Specifically, the first guiding assembly includes a first guiding rail 121, a first sliding plate 122, a second guiding rail 123 and a first fixing plate 124, the first guiding rail 121 is disposed at the bottom of the first drawer box 12, a first guiding groove is disposed on the first sliding plate 122, and the first guiding rail 121 and the first guiding groove are in sliding fit, so as to guide the first drawer box 12 to slide in the first direction. The second guide rail 123 is arranged at the bottom of the first sliding plate 122, the first fixing plate 124 is arranged on the frame 11, the second guide groove is arranged on the first fixing plate 124, and the second guide rail 123 is in sliding fit with the second guide groove, so that the guiding function of the first drawer box 12 in the first direction is achieved, and the sliding smoothness of the first drawer box 12 is ensured.
With this arrangement, the first drawer box 12 can be adjusted in a first direction and in a pulled-out distance in a flexible manner by using the double-layer guide structure. Meanwhile, one layer of the guide structure can pull out the first drawer box 12 by half of the length, and the other layer of the guide structure can pull out the first drawer box 12 by half of the length, so that the first drawer box 12 is completely pulled out.
Further, the automatic feeding and discharging mechanism 1 further comprises a second guiding assembly, and the second guiding assembly is arranged on the frame 11 and used for guiding the second drawer box 13 along the first direction. Specifically, the second guiding assembly includes a first sliding rail 131, a first moving plate 132, a second sliding rail 133 and a first mounting plate 134, the first sliding rail 131 is disposed at the bottom of the second drawer box 13, a first sliding slot is disposed on the first moving plate 132, and the first sliding rail 131 is in sliding fit with the first sliding slot, so as to guide the second drawer box 13 to slide in the first direction. The second slide rail 133 is arranged at the bottom of the first moving plate 132, the first mounting plate 134 is arranged on the frame 11, the second slide groove is arranged on the first mounting plate 134, and the second slide rail 133 is in sliding fit with the second slide groove, so that the guiding function of the second drawer box 13 in the sliding direction in the first direction is achieved, and the sliding smoothness of the second drawer box 13 is ensured.
Adopt this kind of setting, utilize double-deck guide structure, make second drawer box 13 can follow first direction and the distance adaptability adjustment of pulling out, the flexibility is stronger, simultaneously, one of them layer guide structure can pull out half length with second drawer box 13, and one deck guide structure can pull out half length again with second drawer box 13 in addition, thereby realize pulling out second drawer box 13 completely, compare in individual layer guide structure, at the in-process of pulling out the material loading, second drawer box 13's slip stability is good.
After the finished workpiece is placed in the second drawer box 13, if the finished workpiece deviates to cause the finished workpiece to be hung out of the second drawer box 13, when the lifting driving source 14 drives the frame 11 to discharge, the finished workpiece and the rack 4 are easily impacted to cause damage to the finished workpiece. In order to solve this problem, as shown in fig. 4, the automatic loading and unloading mechanism 1 further includes an alignment assembly 17, the alignment assembly 17 includes an alignment driving source 171 and a stopper 172, the alignment driving source 171 is disposed on the frame 4, the alignment driving source 171 is specifically an air cylinder, an output end of the alignment driving source 171 is connected to the stopper 172, the stopper 172 is an L-shaped mechanism, and the alignment driving source 171 can drive the stopper 172 and push the finished workpiece to move in a first direction, so that an edge of the finished workpiece is flush with an edge of the second drawer box 13, thereby preventing the finished workpiece from being positionally deviated in the second drawer box 13.
Because the first drawer box 12 can bear the workpiece to be tested, the second drawer box 13 can bear the finished workpiece, and the manipulator simultaneously conveys the workpiece to be tested and the finished workpiece, in order to further improve the production efficiency, optionally, the MiniLED screen chip testing device further comprises a buffer platform 5, the buffer platform 5 is arranged on one side of the rack 4 close to the first drawer box 12, and the buffer platform 5 is used for bearing the workpiece to be tested. Specifically, the carrying manipulator 2 first picks the workpiece to be tested from the first drawer box 12 and places the workpiece on the buffer platform 5, then the carrying manipulator 2 picks the finished workpiece from the testing mechanism 3 and places the finished workpiece in the second drawer box 13, and then the carrying manipulator 2 picks the workpiece to be tested from the buffer platform 5 and places the workpiece on the testing mechanism 3. Through setting up buffering platform 5, operating personnel need not to wait for the time that the work piece that awaits measuring snatched, as long as first drawer box 12 is empty box state and just can carry out the material loading, reduces the circumstances of waiting for material, scarce material for the production process is continuous, has improved production efficiency.
Wherein, transport manipulator 2 is located and goes up between unloading mechanism 1 and the accredited testing organization 3 voluntarily, and transport manipulator 2 has two rotational degrees of freedom at least for transport manipulator 2 can carry out the switching and the transport of work piece between unloading mechanism 1 and accredited testing organization 3 voluntarily. The carrying manipulator 2 can extend into the first drawer box 12 between two adjacent workpieces to be tested and lift the workpiece to be tested positioned above, so as to separate the workpiece to be tested from the first drawer box 12 and place the workpiece to be tested in the testing mechanism 3.
Further, as shown in fig. 5, the testing mechanism 3 includes a base 33, an adjusting platform 31 and a pressing component 32, the base 33 is disposed on the frame 4, and the base 33 is made of marble material to ensure the flatness of the surface. An adjusting platform 31 and a crimping component 32 are arranged on the base 33, the adjusting platform 31 is configured to bear a workpiece to be tested and can adjust the position of the workpiece to be tested relative to the crimping component 32, and the crimping component 32 is configured to abut against the workpiece to be tested and is electrically connected with the workpiece to be tested. By arranging the adjusting platform 31, the position of the workpiece to be tested can be adjusted, so that the contact stability of the crimping component 32 and the contact of the workpiece to be tested is ensured.
Specifically, the adjusting platform 31 includes a first bearing frame 311, a first driving source 312, a second bearing frame 313 and a second driving source 314, the first bearing frame 311 is used for bearing the workpiece to be tested, the first driving source 312 is specifically a Y-direction linear motor, an output end of the first driving source 312 is connected to the first bearing frame 311, and the first driving source 312 can drive the first bearing frame 311 to move along the first direction, so as to realize position adjustment of the workpiece to be tested in the first direction. A second driving source 314 is arranged on the base 33, the second driving source 314 is an X-direction linear motor, an output end of the second driving source 314 is connected to the second bearing frame 313, the second driving source 314 can drive the second bearing frame 313 to move along the third direction, and the bottom of the first bearing frame 311 is connected with the second bearing frame 313, so that the position adjustment of the workpiece to be tested in the third direction is realized. It should be specially noted that the first carrying frame 311 only contacts the periphery of the workpiece to be tested, the first carrying frame 311 is a hollow structure in the middle, and the first carrying frame 311 does not cover the whole workpiece to be tested. The second bearing frame 313 is also a frame structure, and only the periphery of the workpiece to be tested is loaded, so that the middle area of the workpiece to be tested is not shielded.
By adopting the mode, the workpiece to be tested can freely move along the first direction and the third direction respectively, the position of the workpiece to be tested can be accurately controlled, and the motion precision is more than 0.005 mm. Compared with manual adjustment in the prior art, the problem of poor contact of the workpiece to be tested is solved, so that the positioning accuracy of the test point is ensured, and the test precision is improved.
In order to further ensure the testing precision, positioning blocks are arranged at four corners of the first bearing frame 311, the positioning blocks are of an L-shaped structure, two side edges of a right-angle point of a workpiece to be tested are respectively attached to the inner side surfaces of the positioning blocks, the initial positioning effect is achieved, and the positioning accuracy is good. In addition, the adjusting platform 31 further includes a suction cup and a vacuum generator, the suction cup is disposed around the first bearing frame 311, and the vacuum generator is communicated with the suction cup and used for adsorbing the workpiece to be tested, so as to ensure the fixing effect of the workpiece to be tested and reduce the occurrence of position deviation of the workpiece to be tested.
Further, as shown in fig. 5, the testing mechanism 3 further includes a calibration component 34, the calibration component 34 is disposed below the adjusting platform 31, and the calibration component 34 is configured to pick up a calibration point of the workpiece to be tested, where the calibration point is specifically a reticle on the workpiece to be tested. The calibration assembly 34 includes a mounting base 341 and a camera 342, a through hole 331 is formed on the base 33, and the camera 342 is mounted on the inner wall of the through hole 331 through the mounting base 341.
When the workpiece to be tested moves to the position above the camera 342 under the action of the adjusting platform 31, the camera 342 can shoot the mark point of the workpiece to be tested and judge the position deviation of the mark point relative to the reference position, wherein the position deviation comprises a moving position deviation and a rotating angle deviation, because the middle area of the workpiece to be tested is not shielded. And the offset in the first direction and the offset in the third direction are respectively moved by the X-axis linear motor and the Y-axis linear motor for position compensation.
In order to compensate for the deviation of the rotation angle, the pressing component 32 includes a pressing driving source 321, a pressing platform 322, a rotation driving source 323 and a pressing head 324, the pressing driving source 321 is a Z-direction motor, an output end of the pressing driving source 321 is connected to the pressing platform 322, and the pressing driving source 321 can drive the pressing platform 322 to move along the second direction so as to realize the lifting movement of the pressing platform 322. The press-fit platform 322 is provided with a rotary driving source 323, the rotary driving source 323 is specifically a rotary motor, and the rotary driving source 323 can drive the press head 324 to rotate so as to adjust the position of the press head 324, so that the press head 324 is electrically connected with the workpiece to be tested, and the performance test of the workpiece to be tested is completed. The rotation angle deviation realizes angle compensation through rotation of the rotation driving source 323, accurate alignment between a contact of a workpiece to be tested and the pressure head 324 can be realized, positioning accuracy can exceed 0.002mm through machine vision software compensation, positioning is accurate and good, and high-precision testing is finally realized.
The design of the crimping component 32 and the pressure head module 324 is based on the product characteristic design requirement of the Mini LED 576PIN, the 576PIN probe module is originally developed, the probe module is selected from materials, the size design is strictly based on the material characteristic of the Mini LED for design input, and design output is performed after data collection is completed through multiple times of simulation verification, so that the requirements of product protection, test accuracy and precision during testing are finally guaranteed.
And after the test is finished, judging whether the analyzed finished workpiece is bad through the test board card and the program, binding the information of the bad workpiece with the code of the finished workpiece, and finishing the test. The handling robot 2 then removes the finished workpieces from the testing device 3 and places them in the second drawer box 13.
The working process of the Mini LED screen chip testing device provided by this embodiment is as follows:
when feeding is needed, the lifting driving source 14 drives the frame 11 to move along the second direction, so that the workpieces to be tested can sequentially move to a fixed height, the conveying mechanical arm 2 can accurately take the workpieces to be tested out of the first drawer box 12 and place the workpieces on the buffer platform 5, and meanwhile, an operator can manually place the workpieces to be tested in the empty first drawer box 12 to complete the feeding action process;
the carrying manipulator 2 grabs a last finished workpiece which is tested from the testing mechanism 3 and places the finished workpiece in the second drawer box 13, then the carrying manipulator 2 grabs a workpiece to be tested from the buffer platform 5 and places the workpiece to be tested on the first bearing frame 311 of the testing mechanism 3, under the action of the adjusting platform 31, the workpiece to be tested can freely move along the first direction and the third direction respectively, the position of the workpiece to be tested can be accurately controlled, the rotation angle deviation realizes angle compensation through rotation of the rotary driving source 323, the crimping driving source 321 can drive the crimping platform 322 to move along the second direction, so that the lifting movement of the crimping platform 322 is realized, the accurate alignment between a contact of the workpiece to be tested and the pressure head 324 is realized, and the performance test is completed;
when blanking is needed, the lifting driving source 14 drives the frame 11 to sequentially move to a fixed height along the second direction, so that the conveying manipulator 2 can accurately place the finished workpieces which are subjected to the test and are grabbed from the testing mechanism 3 into the second drawer box 13, and meanwhile, an operator can manually take the finished workpieces out of the second drawer box 13 to complete the blanking process.
In the description above, it should be understood that the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides an automatic go up unloading mechanism which characterized in that includes:
a frame (11);
the first drawer box (12) is arranged on the frame (11) in a sliding mode along a first direction, and the first drawer box (12) is used for bearing a workpiece to be tested;
the second drawer box (13) is arranged on the frame (11) in a sliding mode along the first direction and is parallel to the first drawer box (12), the second drawer box (13) is used for bearing finished workpieces which are tested, and the conveying direction of the finished workpieces is opposite to the conveying direction of the workpieces to be tested;
a lifting driving source (14) with an output end connected to the frame (11), wherein the lifting driving source (14) can drive the frame (11) to move along a second direction, and the first direction and the second direction are arranged perpendicular to each other.
2. The automated loading and unloading mechanism of claim 1, further comprising a first guide assembly, the first guide assembly comprising:
a first rail (121) provided at the bottom of the first drawer box (12);
a first sliding plate (122), wherein a first guide groove is arranged on the first sliding plate (122), and the first guide rail (121) is in sliding fit with the first guide groove;
a second guide rail (123) provided at the bottom of the first slider (122);
the first fixing plate (124) is arranged on the frame (11), a second guide groove is arranged on the first fixing plate (124), and the second guide rail (123) is in sliding fit with the second guide groove.
3. The automated loading and unloading mechanism of claim 1, further comprising a second guide assembly, the second guide assembly comprising:
a first slide rail (131) provided at the bottom of the second drawer box (13);
the first moving plate (132) is provided with a first sliding groove, and the first sliding rail (131) is in sliding fit with the first sliding groove;
a second slide rail (133) disposed at the bottom of the first moving plate (132);
the first mounting plate (134) is arranged on the frame (11), a second sliding groove is arranged on the first mounting plate (134), and the second sliding rail (133) is in sliding fit with the second sliding groove.
4. The automatic loading and unloading mechanism of claim 1, further comprising an alignment assembly (17), wherein the alignment assembly (17) comprises an alignment driving source (171) and a stopper (172), an output end of the alignment driving source (171) is connected to the stopper (172), and the alignment driving source (171) can drive the stopper (172) and push the finished workpiece to move in the first direction, so that an edge of the finished workpiece is flush with an edge of the second drawer box (13).
5. A Mini LED screen chip testing device is characterized by comprising a carrying manipulator (2), a testing mechanism (3) and the automatic loading and unloading mechanism (1) as claimed in any one of claims 1 to 4, wherein the testing mechanism (3) is used for testing the workpieces to be tested, and the carrying manipulator (2) is configured to carry the workpieces to be tested in the first drawer box (12) to the testing mechanism (3) and carry the finished workpieces after testing to the second drawer box (13).
6. The MiniLED screen chip testing device of claim 5, wherein the testing mechanism (3) comprises an adjustment platform (31) and a crimping component (32), the adjustment platform (31) is configured to carry the workpiece to be tested and to be able to adjust its position relative to the crimping component (32), and the crimping component (32) is configured to abut against and electrically connect with the workpiece to be tested.
7. MiniLED screen chip testing device according to claim 6, wherein the adjustment platform (31) comprises:
a first bearing frame (311) used for bearing the workpiece to be tested;
a first driving source (312), an output end of which is connected to the first bearing frame (311), wherein the first driving source (312) can drive the first bearing frame (311) to move along the first direction;
a second carrying frame (313) connected to a bottom of the first carrying frame (311);
and a second driving source (314) having an output end connected to the second carrying frame (313), wherein the second driving source (314) can drive the second carrying frame (313) to move along a third direction, and the third direction is respectively perpendicular to the first direction and the second direction.
8. The MiniLED screen chip testing device of claim 6, wherein the crimping assembly (32) comprises:
a crimping drive source (321) and a crimping platform (322), an output end of the crimping drive source (321) being connected to the crimping platform (322),
a rotary drive source (323) and a ram (324), the rotary drive source (323) being disposed on the crimp platform (322);
the crimping driving source (321) can drive the crimping platform (322) to move along the second direction, and the rotating driving source (323) can drive the pressure head (324) to rotate, so that the pressure head (324) is electrically connected with the workpiece to be tested.
9. The MiniLED screen chip testing device of claim 7, wherein the adjustment platform (31) further comprises:
the sucker is arranged on the first bearing frame (311);
and the vacuum generator is communicated with the sucker and is used for adsorbing the workpiece to be tested.
10. The Mini LED screen chip testing device according to claim 6, wherein the testing mechanism (3) further comprises a calibration component (34), the calibration component (34) is disposed below the adjusting platform (31), and the calibration component (34) is used for picking up the calibration point of the workpiece to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322508.9A CN111377230A (en) | 2020-04-22 | 2020-04-22 | Automatic feeding and discharging mechanism and Mini LED screen chip testing device |
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| CN202010322508.9A CN111377230A (en) | 2020-04-22 | 2020-04-22 | Automatic feeding and discharging mechanism and Mini LED screen chip testing device |
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| CN111377230A true CN111377230A (en) | 2020-07-07 |
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