High-efficiency automatic feeding device

Abstract

The utility model discloses a kind of high-efficiency automatic feeding devices, relate to the field of aging test auxiliary equipment.It includes workbench, material moving assembly, first conveying assembly, aging fixture, buffer elevator, buffer stereoscopic warehouse and second, third conveying assembly and fixture lifting mechanism.Workbench is equipped with fixture storage area and product feeding area;Aging fixture contains aging tray and stacked sub-tray, and can batchly carry product to be measured;Material moving assembly realizes three-dimensional material moving and material direction adjustment;Buffer mechanism buffers product to be measured;Conveying and lifting mechanism realizes fixture automatic replenishment and recycling reuse.The utility model balances process rhythm by multiple sub-tray stacking, multiple assembly cooperation and fixture reflow design, eliminates product accumulation, improves feeding efficiency and equipment utilization, reduces manual input, adapts to large-scale production, solves the problems such as low feeding efficiency and low automation degree of traditional aging test.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices, and in particular to a high-efficiency automatic feeding device. Background Technology

[0002] In the production of electronic components and small electronic devices, aging testing is a crucial step in verifying product stability and reliability. It requires establishing an electrical connection between the product under test and aging testing equipment to simulate a long-term working environment. Currently, traditional aging testing production processes have the following significant drawbacks: Low material loading efficiency and high reliance on manual labor: Traditional aging tests require manual insertion of the products to be tested one by one into the test ports of the aging test equipment, which not only consumes a lot of manpower, but also easily leads to an increase in the test error rate (usually 3%-5%) due to misalignment of the insertion position and poor contact; at the same time, the number of test ports of a single aging test equipment is limited, and only a small number of products can be tested at a time, which cannot be adapted to the large-scale production of the preceding processes.

[0003] The mismatch between process rhythms leads to long product waiting times: the aging process typically takes several hours to over ten hours, while preceding processes such as product assembly and initial inspection only take a few minutes to tens of minutes, a significant difference in duration. Products completed in the preceding processes must accumulate in large quantities in front of the aging testing equipment, occupying production space, increasing material management costs, and potentially causing problems such as product dampness and electrostatic damage due to excessive waiting time, severely impacting production efficiency.

[0004] Insufficient positioning accuracy and poor adaptability of existing material handling mechanisms result in several issues. Most existing mechanisms are two-dimensional moving structures, capable only of simple grasping and transferring, and unable to adjust the placement orientation of the product under test. When there is a deviation in the placement orientation of the product under test in the preceding station and the aging fixture, manual adjustment is required, further reducing loading efficiency. Simultaneously, the material handling process lacks visual guidance, resulting in a high positioning deviation rate (typically ±1mm), making it difficult to meet the requirements for high-precision loading.

[0005] In summary, the existing aging test feeding process suffers from problems such as low efficiency, low automation, and poor process coordination, which cannot meet the needs of large-scale production. There is an urgent need for a high-efficiency automatic feeding device that can achieve continuous feeding and high-precision material transfer to solve the above-mentioned technical pain points. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model aims to provide a technical solution that can solve the above problems.

[0007] This utility model provides a high-efficiency automatic feeding device, comprising: The worktable is installed inside the cabinet. The worktable is provided with a fixture storage area for storing unloaded aging fixtures and a product loading area for loading the products to be tested. An aging fixture is used to connect an aging test device to a product under test. The aging fixture includes an aging tray and multiple sub-trays stacked on the aging tray. Each sub-tray is used to store a product under test. The aging fixture is also provided with a docking bus. One end of the docking bus is electrically connected to the aging fixture, and the other end is provided with multiple plug terminals. Each plug terminal is electrically connected to the product under test on the corresponding sub-tray. The material transfer component is installed on the workbench. The material transfer component is used to grab the empty sub-pallets in the aging fixture in the fixture storage area and move them to the aging tray in the product loading area. It is also used to grab the products to be tested transferred from the previous process and move them to the empty sub-pallets in the aging tray in the product loading area. It can also grab new empty sub-pallets and stack them on the sub-pallets that are loaded with products to be tested. The first conveying component is installed in the product loading area of ​​the workbench. When the number of sub-pallets stacked on the aging pallet in the product loading area reaches a preset value, the first conveying component is used to convey the aging fixture loaded with the product to be tested and the sub-pallets to the aging test equipment of the next process.

[0008] Furthermore: the four corners of the bottom surface of the sub-tray are provided with stacking rings, and the four corners of the top surface are provided with stacking posts corresponding to the stacking rings. The bottom end of the stacking post is fixed to the sub-tray, and its top end is provided with a chamfered guide slope. The stacking ring is fixed to the sub-tray, and its inner ring sidewall is provided with a chamfered guide slope so that the stacking post can be guided and engaged when inserted.

[0009] Furthermore: the side edge of the sub-tray is provided with a limiting notch, and the aging tray is provided with a limiting shaft at the position corresponding to the limiting notch. The limiting notch and the limiting shaft cooperate with each other to provide a limiting and guiding function during the placement of the sub-tray from top to bottom.

[0010] Furthermore, it also includes a buffer lift and a buffer storage unit respectively installed on the work platform. The buffer storage unit has multiple buffer storage positions, each of which is used to temporarily store multiple products to be tested. The buffer lift includes a lifting device and a horizontal conveying device. The lifting device is used to drive the horizontal conveying device to move up and down along the multiple buffer storage positions of the buffer storage unit. The horizontal conveying device is used to carry the products to be tested and to transport the products to be tested to the corresponding buffer storage position or to receive the products to be tested from the buffer storage position in the horizontal direction.

[0011] Further: The flat conveying device includes a flat conveying bracket, a flat conveying motor fixed to the flat conveying bracket, and a flat conveying main rim and a flat conveying slave roller rotatably connected to the flat conveying bracket. A flat conveying belt is fitted on the flat conveying main roller and the flat conveying slave roller. The flat conveying main roller is driven by the flat conveying motor to rotate and drive the flat conveying belt to move synchronously, thereby horizontally conveying the product to be tested placed on the flat conveying belt. A blocking component is provided on the side of the flat conveying device facing the buffer storage position. The blocking component includes a blocking crossbar and an avoidance cylinder. Two sets of avoidance cylinders are respectively fixed to both ends of the flat conveying bracket, and their piston rods are connected to the blocking crossbar to drive the blocking crossbar to move up and down, thereby achieving blocking or avoidance between the conveying and non-conveying states.

[0012] Furthermore, the lifting device includes two sets of lifting supports, two sets of lifting slides, and a lifting crossbar. The two sets of lifting supports are respectively disposed at both ends of the corresponding flat conveying device on the work platform. The two sets of lifting slides are respectively assembled on the corresponding lifting supports. The two ends of the lifting crossbar are respectively fixed to the driving ends of the two sets of lifting slides. The flat conveying support of the flat conveying device is fixed to the lifting crossbar. This is so that when the two sets of lifting slides operate synchronously, they drive the lifting crossbar and the flat conveying device to move up and down synchronously.

[0013] Furthermore: the buffer storage unit includes two sets of buffer columns arranged vertically, and the buffer storage location includes a buffer support arranged horizontally, with both ends of the buffer support fixed to the buffer columns respectively; the buffer storage location also includes a buffer motor, a buffer main roller, a buffer slave roller, and a buffer belt, the buffer motor is fixed to the buffer support and drivenly connected to the buffer main roller, the buffer main roller and the buffer slave roller are both rotatably connected to the buffer support, and the buffer belt is sleeved between the buffer main roller and the buffer slave roller to drive the product to be tested to be transported within the buffer storage location.

[0014] Furthermore: the material transfer assembly includes a horizontal transfer mechanism, a vertical transfer mechanism, a lateral transfer mechanism, and a gripping mechanism; the horizontal transfer mechanism is mounted on the worktable, the vertical transfer mechanism is mounted on the drive end of the horizontal transfer mechanism to achieve lateral movement, the lateral transfer mechanism is mounted on the drive end of the vertical transfer mechanism to achieve longitudinal movement, and the gripping mechanism is mounted on the drive end of the lateral transfer mechanism to achieve vertical movement; the gripping mechanism includes a vacuum suction cup for gripping the product to be tested or the sub-pallet.

[0015] Compared with the prior art, the beneficial effects of this utility model are: ① Significantly improves loading efficiency and reduces labor costs: Through the fixture structure of "aging tray + multiple sub-tray stacking", a single aging fixture can carry multiple products to be tested (e.g., 8-16). Combined with the batch conveying of the first conveying component, there is no need to connect to the test ports one by one, which increases the single test capacity of the aging test equipment by 5-8 times. At the same time, the transfer component realizes the fully automated gripping, transfer and placement of sub-trays and products to be tested, replacing manual operation and reducing manual input by more than 80%. Moreover, the loading positioning accuracy reaches ±0.1mm, and the test error rate is reduced to below 0.1%.

[0016] ② Balance process rhythm and eliminate product waiting backlog: The collaborative design of the buffer storage and buffer lift increases the buffer capacity to more than 56 units, which can accommodate more than 30 minutes of instantaneous high production in the preceding process; at the same time, the mode of "continuous stacking of sub-pallets + batch docking of aging fixtures" eliminates the need for products to wait for the previous batch of aging tests to be completed one by one, reducing product waiting time by more than 60%, and achieving rhythm matching between the preceding process and the aging test process.

[0017] ③ Improve equipment utilization and production adaptability: The three-dimensional movement and rotation function of the transfer component can adapt to the orientation adjustment needs of the products under test without manual assistance; the precise control of the vision positioning system and the multi-stage conveying mechanism reduces the docking time between the aging fixture and the testing equipment from the traditional 10 minutes / batch to 1 minute / batch, and increases the effective working time of the aging testing equipment to over 95%; at the same time, it can adapt to different specifications of products under test by adjusting the number of sub-pallets and the number of buffer storage layers, and has good adaptability to large-scale production.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the workbench and aging fixture of this utility model; Figure 3 This is a schematic diagram of the structure of the aging tray and sub-tray of this utility model; Figure 4This is a schematic diagram of the stacking ring and stacking column of this utility model; Figure 5 This is a structural schematic diagram of the lifting device and the horizontal conveying device of this utility model; Figure 6 This is a schematic diagram of the structure of the flat conveyor belt and the blocking crossbar of this utility model; Figure 7 This is a schematic diagram of the structure of the cache pillar and cache location of this utility model; Figure 8 This is a schematic diagram of the structure of the buffer bracket and buffer motor of this utility model; Figure 9 This is a schematic diagram of the material transfer assembly of this utility model; Figure 10 This is a schematic diagram of the vertical movement mechanism of this utility model.

[0021] The reference numerals and names in the figure are as follows: 10 Workbench; 11 Fixture Storage Area; 12 Product Loading Area; 13 First Conveying Component; 14 Second Conveying Component; 15 Third Conveying Component; 16 Product to be Tested; 20 Transfer Component; 21 Lateral Transfer Mechanism; 22 Lateral Transfer Support; 23 Lateral Transfer Guide Rail; 24 Lateral Transfer Slide Plate; 25 Lateral Transfer Rack; 26 Lateral Transfer Motor; 30 Longitudinal Transfer Mechanism; 31 Longitudinal Transfer Support; 32 Longitudinal Transfer Guide Rail; 33 Longitudinal Transfer Slide Plate; 34 Longitudinal Transfer Rack; 35 Longitudinal Transfer Motor; 40 Vertical Transfer Mechanism; 41 Vertical Transfer Support; 42 Vertical Transfer Slide Rod; 43 Vertical Transfer Guide Rail; 44 Vertical Transfer Rack; 45 Vertical Transfer Motor; 50 Gripping Mechanism; 51 Vacuum Suction Cup; 52 Rotary Support; 53 Rotary Turntable; 54 Rotary Motor; 5 5. Rotary gear; 60. Aging fixture; 61. Plug-in terminal; 62. Aging tray; 63. Limiting shaft; 64. Sub-tray; 65. Stacking ring; 66. Stacking column; 67. Guide bar; 68. Guide column; 69. Limiting notch; 70. Buffer elevator; 71. Lifting device; 72. Lifting crossbar; 73. Lifting bracket; 74. Lifting slide; 80. Horizontal conveying device; 81. Horizontal conveying bracket; 82. Horizontal conveying motor; 83. Horizontal conveying main roller; 84. Horizontal conveying slave roller; 85. Horizontal conveying belt; 86. Blocking crossbar; 87. Avoidance cylinder; 90. Buffer automated storage; 91. Buffer column; 92. Transition bearing; 93. Buffer storage position; 94. Buffer bracket; 95. Buffer motor; 96. Buffer main roller; 97. Buffer slave roller; 98. Buffer belt. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see Figures 1 to 10 In this embodiment of the utility model, a high-efficiency automatic feeding device includes: The worktable 10 is installed inside the cabinet. The worktable 10 is provided with a fixture storage area 11 for storing the unloaded aging fixture 60 and a product loading area 12 for loading the product to be tested 16. An aging fixture 60 is used to connect an aging test device and a product under test 16. The aging fixture 60 includes an aging tray 62 and multiple sub-trays 64 stacked on the aging tray 62. Each sub-tray 64 is used to store a product under test 16. The aging fixture 60 is also provided with a docking bus. One end of the docking bus is electrically connected to the aging fixture 60, and the other end is provided with multiple plug terminals 61. Each plug terminal 61 is electrically connected to the product under test 16 on the corresponding sub-tray 64. The material transfer component 20 is installed on the worktable 10. The material transfer component 20 is used to grab the empty sub-trays 64 in the aging fixture 60 in the fixture storage area 11 and move them to the aging tray 62 in the product loading area 12. It is also used to grab the test product 16 transferred from the previous process and move it to the empty sub-trays 64 in the aging tray 62 in the product loading area 12. It can also grab new empty sub-trays 64 and stack them on the sub-trays 64 that are loaded with the test product 16. The first conveying component 13 is installed in the product loading area 12 of the worktable 10. The first conveying component 13 is used to convey the aging fixture 60, which is loaded with the product to be tested 16 and the sub-trays 64, to the aging test equipment of the next process when the number of sub-trays 64 stacked on the aging tray 62 of the product loading area 12 reaches a preset value.

[0024] Specifically, this invention addresses the aforementioned shortcomings of traditional aging test processes by designing a highly efficient automatic feeding device that integrates multiple components. The specific technical solution is as follows: In the initial state of the device, the fixture storage area 11 holds multiple sets of unloaded aging fixtures 60. Each set of unloaded aging fixtures 60 includes an aging tray 62 and multiple spare sub-trays 64 stacked on the aging tray 62. The docking bus of the aging fixture 60 has been electrically connected to the aging tray 62, and each plug-in terminal 61 is in a docking-ready state.

[0025] When the device starts the feeding process, the transfer component 20 first operates: it grabs an empty sub-tray 64 from the empty aging fixture 60 in the fixture storage area 11, precisely moves it above the aging tray 62 (initially empty, which can be transferred from the fixture storage area 11 to the product feeding area 12) that has been pre-placed in the product feeding area 12, and places it stably on the aging tray 62; then, the transfer component 20 turns to grab the product to be tested 16 that has been transferred to the device feeding end from the previous process, and places the product to be tested 16 into the empty sub-tray 64 of the aging tray 62 in the product feeding area 12 according to the preset positioning accuracy; after placing one product to be tested 16, the transfer component 20 returns to the fixture storage area 11 to grab a new empty sub-tray 64, and stacks it on top of the sub-tray 64 that has been loaded with the product to be tested 16, forming a stacking structure of "aging tray 62 - sub-tray 64 loaded with product to be tested 16 - empty sub-tray 64", waiting for the next product to be tested 16 to be placed.

[0026] Repeat the above process until the number of sub-trays 64 stacked on the aging tray 62 in the product loading area 12 reaches a preset value (this preset value is set based on the capacity of the aging test equipment, the duration of the aging process, and the capacity of the preceding process), for example, set to 4, to ensure that the time for the preceding process to produce 4 products to be tested 16 is basically matched with the time for the aging process to complete a batch of tests. At this time, all the sub-trays 64 on the aging tray 62 are loaded with products to be tested 16, and each product to be tested 16 is electrically connected to the plug-in terminal 61 of the docking bus of the aging fixture 60 through a conductive connector, thus completing the loading process of the aging fixture 60.

[0027] Subsequently, the first conveying component 13 is activated, smoothly conveying the aging fixture 60 (including aging tray 62, multiple sub-trays 64 loading products 16 to be tested and docking bus) that has been loaded in the product loading area 12 to the aging test equipment in the next process. The aging fixture 60 is quickly docked with the main interface of the aging test equipment through the docking bus, and batch aging tests can be started without connecting the products 16 to be tested one by one.

[0028] While the first conveying component 13 is conveying the loaded aging fixture 60, the fixture storage area 11 automatically conveys and replenishes the empty aging fixture 60 through the second conveying component 14. The second conveying component 14 is arranged in the fixture storage area 11 along the length of the worktable 10. Its structure is adapted to the first conveying component 13 (such as using a synchronous belt conveyor, roller conveyor or double speed chain conveyor line). It can convey the empty aging fixture 60 (including the empty aging tray 62, but excluding the sub-tray 64, which has been removed in the previous process) in the fixture storage area 11 to the product loading area 12 until the empty aging fixture 60 is accurately transferred to the initial position of the first conveying component 13, forming a newly replenished empty aging tray 62 in the product loading area 12 (after the original aging tray 62 in the product loading area 12 is removed with the loaded fixture, the newly replenished empty aging tray 62 immediately takes over the loading process).

[0029] After the second conveying assembly 14 conveys the empty aging fixture 60 to the product loading area 12, workers or automated mechanisms can replenish the second conveying assembly 14 with new aging fixtures 60 and sub-pallets 64, allowing the transfer assembly 20 to continue grabbing empty sub-pallets 64 from the replenished aging fixtures 60. The empty sub-pallets 64 are then grabbed from the replenished aging fixtures 60 by the second conveying assembly 14 and transferred to the newly replenished empty aging pallets 62 in the product loading area 12, repeating the sub-pallet 64 stacking and product loading process 16.

[0030] To ensure a continuous supply of unloaded aging jigs 60 in jig storage area 11, the replenishment method can be flexibly configured: Manual replenishment: Staff can periodically place new empty aging trays 62 and corresponding empty sub-trays 64 on the second conveying component 14 of the fixture storage area 11; Automated return supply: The third conveying component 15 (such as a chain conveyor, lifting transfer machine or double-speed chain conveyor line) set below the work platform 10 connects to the discharge end of the aging test equipment of the next process, and returns the aging fixture 60 (empty state with the product to be tested 16 removed) and the sub-pallet 64 after testing. At the same time, a fixture lifting mechanism (such as a screw jack or pneumatic lifting platform) is configured to transport the return aging fixture 60 and the sub-pallet 64 below the work platform 10 to the second conveying component 14 in the fixture storage area 11, so as to realize the recycling of the aging fixture 60 and the sub-pallet 64 and reduce manual intervention.

[0031] Through the automatic transfer of the second conveying component 14 and the cyclic replenishment of the third conveying component 15 and the fixture lifting mechanism, the fixture storage area 11 can always maintain a sufficient reserve of empty aging fixtures 60. With the coordinated action of the transfer component 20 and the first conveying component 13, the entire cycle of the feeding process can be continuously operated, avoiding production line stagnation caused by the interruption of fixture replenishment.

[0032] like Figures 2 to 4 As shown, preferably, the four corners of the bottom surface of the sub-tray 64 are respectively provided with stacking rings 65, and the four corners of the top surface of the sub-tray 64 are respectively provided with stacking posts 66 corresponding to the stacking rings 65. The bottom end of the stacking post 66 is fixed to the top surface of the sub-tray 64, and the outer peripheral wall of its top end is chamfered to form a first guiding slope. The height of the stacking post 66 is greater than the thickness of the product 16 to be tested. One side of the stacking ring 65 is fixed to the bottom surface of the sub-tray 64, and the inner ring side wall away from the bottom surface of the sub-tray 64 is chamfered to form a second guiding slope. The inner diameter of the stacking ring 65 is adapted to the outer diameter of the stacking post 66, so that the stacking ring 65 of the upper sub-tray 64 can fit onto the outside of the stacking post 66 of the lower sub-tray 64 through the cooperation of the first guiding slope and the second guiding slope.

[0033] Specifically, in order to achieve stable stacking of multiple sub-pallets 64 and avoid squeezing the product 16 to be tested inside the sub-pallets 64 during stacking, this utility model has optimized the stacking structure of its sub-pallets 64: Stacking rings 65 are fixedly installed at the four corners of the bottom surface of the sub-pallet 64. Correspondingly, stacking posts 66 are fixedly installed at the four corners of the top surface of the sub-pallet 64. The positions of the stacking rings 65 and the stacking posts 66 correspond one-to-one, and the inner diameter of the stacking rings 65 matches the outer diameter of the stacking posts 66, ensuring that the stacking rings 65 of the upper sub-pallet 64 can be precisely fitted onto the outer side of the stacking posts 66 of the lower sub-pallet 64, forming a multi-layer stable stacking structure. In order to support the first sub-pallet 64, the aging pallet 62 is provided with four independent stacking posts 66 at the positions of the stacking rings 65 of the sub-pallet 64. The structure of the independent stacking posts 66 is the same as that of the stacking posts 66 on the top surface of the sub-pallet 64, and can be precisely matched with the stacking rings 65 of the first sub-pallet 64 to achieve initial support.

[0034] Considering that the product under test 16 needs to be placed in the sub-tray 64, the height of the stacking column 66 is designed to be greater than the thickness of the product under test 16 (the specific height difference can be adjusted according to the external dimensions of the product under test 16, usually 1-3mm). This design can form sufficient accommodation space between the upper and lower sub-trays 64, avoiding the bottom surface of the upper sub-tray 64 directly pressing the product under test 16 in the lower sub-tray 64, and preventing the product under test 16 from being damaged or having poor contact due to pressure.

[0035] To reduce the alignment difficulty and improve stacking efficiency when stacking sub-pallets 64, this invention also provides guiding structures on the stacking column 66 and the stacking ring 65: a chamfer is processed on the outer peripheral wall of the top of the stacking column 66 to form an outwardly inclined first guiding slope; a chamfer is processed on the inner ring side wall of the stacking ring 65 away from the bottom surface of the sub-pallet 64 to form an inwardly inclined second guiding slope. When the material transfer component 20 picks up the upper sub-pallet 64 for stacking, the first and second guiding slopes first contact and guide each other. Even if there is a slight alignment deviation between the stacking ring 65 and the stacking column 66, the position can be automatically corrected by the guiding effect of the slopes, ensuring that the stacking column 66 is accurately inserted into the stacking ring 65. This significantly reduces the positioning accuracy requirements of the stacking operation and improves the success rate and efficiency of stacking the sub-pallets 64.

[0036] Furthermore, to further improve the accuracy of placing the product under test 16 into the sub-tray 64 and avoid the product under test 16 failing to be placed correctly due to positioning deviation of the transfer component 20, this utility model also adds a guide structure to the top surface of the sub-tray 64: a guide strip 67 is fixedly assembled on the side of the sub-tray 64 (one set along the short side and one set along the long side), and the side of the guide strip 67 facing the inside of the sub-tray 64 is machined with an inclined guide slope. When the transfer component 20 moves the product under test 16 into the sub-tray 64, the guide slope can guide the side of the product under test 16. Limiting and guiding to prevent the product under test 16 from deviating; guide posts 68 are fixedly assembled at both ends of the long side of the sub-tray 64. The top of the guide post 68 is machined with a tapered slope. Correspondingly, the two ends of the product under test 16 are provided with guide holes that are adapted to the guide posts 68. When the product under test 16 is placed into the sub-tray 64, the tapered slope can guide the guide holes to accurately fit into the guide posts 68, realize the rapid positioning of the product under test 16 in the sub-tray 64, and ensure that the electrodes of the product under test 16 can correspond to the plug terminals 61 of the aging fixture 60, laying the foundation for subsequent plugging.

[0037] The combination of the stacking structure and the guiding structure not only enables stable multi-layer stacking of the sub-trays 64 and reduces the space occupied during the feeding process, but also significantly improves the accuracy and efficiency of placing the product under test 16 into the sub-trays 64, further ensuring the stability of the subsequent aging fixture 60 and the testing equipment docking, and is highly compatible with the overall automated feeding requirements of the device.

[0038] like Figures 3 to 4As shown, preferably, the side edge of the sub-tray 64 is provided with at least two limiting notches 69, which are symmetrically and staggered along the long side of the sub-tray 64; the aging tray 62 is provided with a limiting shaft 63 corresponding to each limiting notch 69, the limiting shaft 63 is vertically fixed to the top surface of the aging tray 62, and its height is adapted to the preset stacking layer of the sub-tray 64; the shape of the limiting notch 69 is adapted to the outer peripheral wall of the limiting shaft 63, and when the sub-tray 64 is placed on the aging tray 62 from top to bottom, the limiting notch 69 can slide with the limiting shaft 63 to limit and guide the horizontal displacement of the tray.

[0039] Specifically, during the stacking of sub-pallets 64, without limiting guidance, the sub-pallets 64 are prone to bumping into the edges of the aging pallet 62 or adjacent components due to horizontal deviation when moving downwards. This may not only damage the sub-pallets 64 or the product to be tested 16, but also increase the adjustment time of the transfer assembly 20, affecting the feeding efficiency. Therefore, this utility model adds a limiting cooperation structure between the sub-pallets 64 and the aging pallet 62: Limiting notches 69 are provided on the side edges of the sub-pallet 64, preferably symmetrically and staggeredly distributed along the long side of the sub-pallet 64. Specifically, a limiting notch 69 is provided near one end of one side edge of the long side of the sub-pallet 64, and another limiting notch 69 is provided near the other end of the other side edge, forming a "staggered layout". This design can limit the displacement of the sub-pallet 64 from both the lateral and longitudinal directions through the limiting points at two different locations. Compared with the symmetrical collinear notch layout, the limiting stability is improved by more than 40%.

[0040] Correspondingly, on the top surface of the aging tray 62, a limiting shaft 63 is vertically fixed to each limiting notch 69. The height of the limiting shaft 63 must be adapted to the preset stacking number of sub-trays 64. For example, when the preset stacking number is four layers, the height of the limiting shaft 63 must be slightly higher than the total height of the four sub-trays 64 after stacking (usually 5-8mm higher). This ensures that the limiting notch 69 can always cooperate with the limiting shaft 63 throughout the entire process from the initial placement of the sub-tray 64 to the completion of the four-layer stacking, and avoids the limiting shaft 63 losing its guiding function due to insufficient height in the later stages of stacking.

[0041] When the transfer assembly 20 picks up the sub-pallet 64 and places it from top to bottom onto the aging pallet 62, the limiting notch 69 of the sub-pallet 64 will first contact the top of the limiting shaft 63. Since the inner contour of the limiting notch 69 is precisely matched with the outer peripheral wall of the limiting shaft 63 (the gap is controlled within 0.1-0.2mm), the limiting shaft 63 can limit the horizontal displacement of the sub-pallet 64 through the limiting notch 69, and guide the sub-pallet 64 to fall smoothly to the preset position in the vertical direction. This effectively avoids the sub-pallet 64 from bumping into the side of the aging pallet 62 or adjacent parts, reducing the placement deviation rate of the sub-pallet 64 from more than 5% in the traditional unlimited structure to less than 0.5%, and greatly improving the operating efficiency of the transfer assembly 20.

[0042] Considering that the aging pallet 62 is typically large, to further increase the feeding capacity, two independent sets of sub-pallet 64 stacking areas can be symmetrically arranged along the length of the aging pallet 62. Each set of areas is equipped with a corresponding structure that matches the aforementioned limiting shaft 63 and limiting notch 69. The two sets of structures work independently. When the material transfer component 20 places the sub-pallets 64 into the two sets of areas respectively, the limiting shaft 63 can limit the offset of the corresponding sub-pallets 64, preventing the two sets of sub-pallets 64 from colliding with each other due to offset during placement. This ensures that the two stacking processes do not interfere with each other, doubling the space utilization of the aging pallet 62 and further adapting to the feeding needs of large-scale production.

[0043] This limiting and coordinating structure works in synergy with the stacking and guiding structures mentioned above. The guiding structure ensures that the product to be tested 16 is accurately placed into the sub-tray 64, the stacking structure enables stable multi-layer stacking of the sub-tray 64, and the limiting structure ensures the positional accuracy of the sub-tray 64 during placement. The three work together to significantly improve the stability and efficiency of the entire feeding process, which is highly consistent with the overall automation and high efficiency design goals of the device.

[0044] like Figure 2 , Figure 5 and Figure 7 As shown, preferably, it also includes a buffer lift 70 and a buffer storage unit 90, both of which are installed on the work platform 10. The buffer storage unit 90 has multiple layers of buffer storage positions 93 distributed vertically, each layer of buffer storage position 93 being used to temporarily store at least one product to be tested 16. The buffer lift 70 includes a lifting device 71 and a conveying device 80, the drive end of which is connected to the conveying device 80, for driving the conveying device 80 to rise and fall vertically, so that the conveying device 80 is aligned with any layer of buffer storage position 93 of the buffer storage unit 90. The conveying device 80 is used to carry the product to be tested 16 and can transport the product to be tested 16 to the aligned buffer storage position 93 in the horizontal direction, or receive the product to be tested 16 from the aligned buffer storage position 93.

[0045] Specifically, in large-scale production scenarios, the output rate of the product under test 16 in the preceding process may temporarily exceed the feeding rate of the sub-pallet 64. Relying solely on the stacking structure of the sub-pallet 64 is insufficient to fully absorb the instantaneous high output of the product under test 16, which can easily lead to the stagnation of the preceding process. To address this, this invention adds a buffer elevator 70 and a buffer storage unit 90 to form a temporary buffer mechanism for the product under test 16, enabling continuous operation of long-line production and reducing the impact of temporary malfunctions of this device on upstream processes.

[0046] Specifically, on the side of the workbench 10 away from the fixture storage area 11 and the product loading area 12, a buffer elevator 70 and a buffer storage unit 90 are symmetrically assembled. The buffer storage unit 90 adopts a frame structure and has 7 layers of buffer storage positions 93 evenly distributed in the vertical direction (the number of layers can be adjusted according to the cabinet height and the preceding production capacity). Each layer can store 4 products 16 to be tested at the same time (the quantity is adapted to the external dimensions of the products 16 to be tested and the conveying width of the flat conveyor 80). The overall buffer capacity can reach 28 units, which is sufficient to cope with the instantaneous high production of the preceding process for 15-20 minutes.

[0047] To ensure precise transport of the product under test 16 to the buffer storage location 93, the buffer elevator 70 is equipped with a horizontal conveyor 80 and an elevator 71 working in tandem. The horizontal conveyor 80 serves as the product transport carrier, with a horizontal conveyor belt 85 on its top surface. When the product under test 16 is transferred from the previous process to the horizontal conveyor 80, the horizontal conveyor belt 85 uses friction to move the product under test 16 horizontally until it is delivered into the aligned buffer storage location 93. The elevator 71 is used to adjust the height of the horizontal conveyor 80 so that it can connect with buffer storage locations 93 at different levels. When it is necessary to store or retrieve materials from higher storage locations, the elevator 71 drives the horizontal conveyor 80 to rise and fall vertically until the conveying surface of the horizontal conveyor 80 is flush with the bearing surface of the target buffer storage location 93, ensuring that the transport of the product under test 16 is smooth and without jamming.

[0048] The buffer mechanism works in conjunction with the transfer component 20: when the sub-pallet 64 of the product loading area 12 is in a waiting state, the transfer component 20 can directly grab the product 16 to be tested from the previous process; when the sub-pallet 64 is busy loading, the product 16 to be tested from the previous process is first stored in the buffer storage 90 through the buffer elevator 70; when the sub-pallet 64 has free time, the buffer elevator 70 then transports the buffered product 16 to be tested to the grabbing area of ​​the transfer component 20, realizing the dynamic scheduling of the product 16 to be tested, so that the loading rhythm of the previous process and this device is always matched, and the continuous operation rate of the production line is increased to over 98%.

[0049] like Figure 5 and Figure 6As shown, preferably, the horizontal conveying device 80 includes a horizontal conveying bracket 81, a horizontal conveying motor 82, a horizontal conveying main roller 83, and a horizontal conveying slave roller 84; the horizontal conveying motor 82 is fixedly connected to the horizontal conveying bracket 81, the horizontal conveying main roller 83 and the horizontal conveying slave roller 84 are both rotatably connected to the horizontal conveying bracket 81, and the input end of the horizontal conveying main roller 83 is drively connected to the output end of the horizontal conveying motor 82; a horizontal conveying belt 85 is sleeved between the horizontal conveying main roller 83 and the horizontal conveying slave roller 84, and the horizontal conveying motor 82 can drive the horizontal conveying main roller 83 to rotate, thereby driving the horizontal conveying belt 85 to rotate synchronously, so as to horizontally convey the product 16 to be tested placed on the horizontal conveying belt 85.

[0050] Specifically, the horizontal conveying device 80, as the core actuator for the horizontal conveying of the product under test 16, needs to possess stable transmission performance and flexible speed adjustment capabilities to adapt to the conveying requirements of products 16 of different specifications. Therefore, this device adopts a "motor-roller-belt" transmission structure. The power source for the flat conveying device 80 is a 90YT120GV22 single-phase asynchronous speed-regulating motor. This motor has a rated power of 120W and a rated speed of 1400r / min. It supports 0-50Hz frequency conversion speed regulation and can achieve stepless speed regulation of 0.1-1m / s through the controller. When conveying small and thin test products 16, the speed can be reduced to 0.3m / s to avoid the product sliding due to inertia. When conveying large and heavy products, the speed can be increased to 0.8m / s to ensure conveying efficiency and adapt to various product specifications.

[0051] The motor output is connected to the main conveyor roller 83 via a coupling. The main conveyor roller 83 and the secondary conveyor roller 84 are rotatably connected to both ends of the conveyor support 81 via bearing seats. A polyurethane conveyor belt 85 (with high friction and wear resistance) is fitted between them. The secondary conveyor roller 84 is also equipped with a tensioning mechanism (composed of a tensioning bolt and an adjusting slider). The belt can be tensioned by adjusting the position of the secondary conveyor roller 84 to prevent belt slippage from affecting the conveying accuracy. During operation, the conveyor motor 82 drives the main conveyor roller 83 to rotate. The main conveyor roller 83 drives the conveyor belt 85 to rotate through friction, thereby moving the product 16 placed on the belt in the horizontal direction. The conveying positioning accuracy can reach ±0.2mm, meeting the docking requirements with the buffer storage location 93.

[0052] To further enhance conveying safety, a blocking component is installed on the side of the flat conveyor 80 facing the buffer storage 93. This blocking component includes a blocking crossbar 86 and two sets of avoidance cylinders 87. The two sets of avoidance cylinders 87 are mounted on both ends of the flat conveyor support 81 via cylinder brackets, with their piston rods extending vertically downwards. The blocking crossbar 86 is horizontally fixed to the bottom of the two sets of piston rods. When the flat conveyor 80 is not in a conveying state (such as when the lifting device 71 drives its lifting and lowering), the avoidance cylinders 87 remain extended, ensuring that the blocking crossbar 86 is 5-8mm higher than the top surface of the flat conveyor belt 85, preventing the product 16 to be tested from sliding and falling along the conveying direction. When it is necessary to convey a product to the buffer storage 93 or retrieve material from the storage location, the controller first sends a signal to the avoidance cylinders 87, causing their piston rods to retract and raising the blocking crossbar 86 to a preset height above the flat conveyor belt 85, avoiding the conveying path. After the product has completely entered or left the storage location, the avoidance cylinders 87 extend again, restoring the blocking state. The blocking component works in coordination with the flat conveying device 80 to reduce the risk of the product under test 16 falling during the conveying process to zero, further ensuring the stability of the device operation.

[0053] like Figure 5 As shown, preferably, the lifting device 71 includes a lifting crossbar 72, two sets of lifting supports 73, and two sets of lifting slides 74; the two sets of lifting supports 73 are symmetrically fixed to the working platform 10 at positions corresponding to both ends of the flat conveying device 80, and the two sets of lifting slides 74 are respectively assembled vertically on the opposite inner sides of the two sets of lifting supports 73; the two ends of the lifting crossbar 72 are respectively fixedly connected to the driving ends of the two sets of lifting slides 74, and the flat conveying support 81 of the flat conveying device 80 is fixedly connected to the middle of the lifting crossbar 72; the two sets of lifting slides 74 can operate synchronously, driving the lifting crossbar 72 to move the flat conveying device 80 up and down in the vertical direction.

[0054] Specifically, the core requirement of the lifting device 71 is to drive the leveling device 80 to precisely lift and lower, ensuring it is level with any level of the buffer storage position 93 in the buffer storage system 90. Therefore, it needs to have high-precision and high-stability lifting performance. The specific structural design is as follows: At the two ends of the worktable 10 corresponding to the length of the conveying device 80, a set of lifting brackets 73 are fixed respectively. The lifting brackets 73 are welded from aluminum alloy profiles and have sufficient rigidity to support the weight of the lifting slide 74 and the conveying device 80. The two sets of lifting slides 74 are fixed vertically to the opposite inner sides of the two sets of lifting brackets 73 by bolts. The ETH17 series standard screw slide module is selected. This module adopts double linear slide rail guidance and ball screw drive, with a repeatability of ±0.05mm and a maximum load of 200kg, which fully meets the load requirements of the conveying device 80 (about 30kg) and the product to be tested 16 (about 0.5kg per piece), and can ensure the levelness of the conveying device 80 during the lifting process, avoiding product slippage due to tilting.

[0055] The lifting crossbar 72 is made of stainless steel, and its two ends are fixedly connected to the sliders (drive ends) of the two sets of lifting slides 74 via flanges. The flattening bracket 81 of the flattening device 80 is bolted to the middle position of the lifting crossbar 72, so that the center of gravity of the flattening device 80 coincides with the center of force of the lifting crossbar 72, further improving the lifting stability. To achieve synchronous operation of the two sets of lifting slides 74, each set of slides is equipped with a servo motor, and the speed and direction of the two motors are controlled to be consistent through pulse synchronization commands of the PLC controller, ensuring that the lifting speed and displacement at both ends of the lifting crossbar 72 are completely synchronized, and preventing the flattening device 80 from tilting or jamming.

[0056] During operation, when the product to be tested 16 needs to be stored in the third-level buffer storage location 93 from the bottom, the controller first calculates the height difference between the current position of the flat conveyor 80 and the third-level storage location. Then, it sends a synchronization command to the servo motors of the two sets of lifting slides 74. The motors drive the ball screws to rotate, causing the slider to rise along the linear slide rail. Through the lifting crossbar 72, the flat conveyor 80 rises synchronously to a position level with the third-level storage location. At this point, the flat conveyor 80 can start its conveying action, sending the product to be tested 16 into the storage location. During retrieval, the lifting device 71 drives the flat conveyor 80 to descend to the target storage location height. After receiving the product, it descends again to the height where it docks with the transfer component 20, realizing the transfer of the buffered product to the sub-pallet 64. The high-precision lifting control of the lifting device 71 ensures that the docking deviation between the flat conveyor 80 and the buffer storage location 93 is controlled within ±0.1mm, guaranteeing a smooth and stable conveying process for the product to be tested 16 and providing a guarantee for the efficient operation of the buffer mechanism.

[0057] like Figure 7 and Figure 8As shown, preferably, the buffer storage unit 90 includes two sets of buffer columns 91 extending vertically, and the buffer storage position 93 includes a buffer support 94, a buffer motor 95, a buffer main roller 96, a buffer slave roller 97, and a buffer belt 98; the two sets of buffer columns 91 are symmetrically fixed to the worktable 10, and correspond one-to-one with the positions of the two sets of lifting supports 73 of the lifting device 71; the buffer support 94 is arranged horizontally, and its two ends are respectively fixed to the two sets of buffer columns 91, so that the buffer storage position 93 is aligned with the conveying path of the flat conveying device 80. The buffer motor 95 is fixedly connected to the buffer bracket 94. The buffer main roller 96 and the buffer slave roller 97 are rotatably connected to both ends of the buffer bracket 94, and the input end of the buffer main roller 96 is connected to the output end of the buffer motor 95. The buffer belt 98 is sleeved between the buffer main roller 96 and the buffer slave roller 97. The buffer motor 95 can drive the buffer main roller 96 to rotate, thereby driving the buffer belt 98 to run, so as to receive the product to be tested 16 conveyed by the flat conveyor 80 and convey it into the buffer storage location 93.

[0058] Specifically, in the design of the cache storage unit 90, due to the overall height limitation of the cabinet (usually the cabinet height does not exceed 2.5m), the number of layers of the cache storage unit 93 cannot be increased indefinitely (e.g., a maximum of 7 layers can be set); at the same time, the width of the cache storage unit 93 needs to be compatible with the conveying width of the flat conveyor 80 (if the flat conveyor 80 conveys 4 products to be tested 16 at a time, the width of the cache storage unit 93 needs to match the total width of 4 products), resulting in a limited storage capacity of the traditional single-layer, single-row cache storage unit 93 (7 layers can only store 28 products to be tested 16), which is difficult to meet the instantaneous high-production requirements of the preceding process of more than 15 minutes.

[0059] To overcome storage capacity limitations, this invention doubles the cache capacity by increasing the horizontal storage depth of the cache storage location 93. Specifically, the cache storage location 93 is extended along a direction perpendicular to its width (i.e., away from the conveyor 80), creating a "two-row" storage structure for each layer of cache storage locations 93. For example, the conveyor 80 can transport four test products 16 at a time, while a traditional single-layer storage location can only store one row of four units. With the extended design, a single layer can store two rows of eight test products 16. With seven layers of storage locations, the overall cache capacity increases from 28 to 56 units, sufficient to handle the instantaneous high production of the preceding process within 30 minutes, significantly reducing the risk of preceding process stalls.

[0060] To achieve this "deep storage" function, the buffer storage location 93 adopts a synchronous conveying system design that is the same as that of the flat conveying device 80: the core components of the buffer storage location 93 (buffer motor 95, buffer main roller 96, buffer slave roller 97, buffer belt 98) are configured identically to those of the flat conveying device 80 (e.g., the buffer motor 95 is also a 90YT120GV22 single-phase asynchronous speed-regulating motor). By simply increasing the distance between the buffer main roller 96 and the buffer slave roller 97 (the distance is extended to twice the length of a single product 16 to be tested; for example, when the length of the product 16 to be tested is 150mm, the roller spacing is set to 300mm), the effective conveying length of the buffer belt 98 is doubled, forming a conveying space that can accommodate two rows of products 16 to be tested.

[0061] During operation, the conveyor 80 first transports the first row of four test products 16 to the front end of the buffer belt 98 (near the side of the conveyor 80). At this time, the buffer belt 98 is stationary, and the first row of products is temporarily stored at the front end of the buffer belt 98. Subsequently, the conveyor 80 continues to transport the second row of four test products 16. When the front end of the second row of products contacts the buffer belt 98, the buffer motor 95 starts synchronously, driving the buffer belt 98 to move away from the conveyor 80. Driven by the buffer belt 98, the first row of products moves into the buffer storage 93. At the same time, the second row of products, along with the conveyor 80 and the operation of the buffer belt 98, simultaneously replenishes the front end of the buffer belt 98. When the second row of products has completely entered the buffer belt 98, the buffer belt 98 stops operating. At this time, the first row of products is exactly located in the inner area of ​​the buffer storage 93, and the second row of products is located in the outer area of ​​the buffer storage 93, completing the "first in, then new material" deep storage process for eight products in a single layer. The entire process is uninterrupted, and the storage efficiency is improved by more than 30%.

[0062] In terms of structural assembly, the two sets of buffer columns 91 are fixed to the worktable 10 at the positions of the two sets of lifting brackets 73 of the lifting device 71, respectively, ensuring that the conveying center line of each layer of buffer storage 93 is completely aligned with the conveying center line of the flat conveying device 80, thus preventing offset and jamming during the conveying of the product under test 16. Simultaneously, to ensure the storage safety of the product under test 16 within the buffer storage 93, differentiated limiting structures are designed for different positions: The buffer storage location 93 is located away from the flat conveyor 80: Since there is no need to convey the product 16 to be tested, a blocking crossbar 86 is directly fixed on the buffer bracket 94. The height of the blocking crossbar 86 is 8-10mm higher than the top surface of the buffer belt 98, which can effectively prevent the product 16 to be tested from sliding out of the storage location and prevent the product from falling.

[0063] The buffer storage position 93 is located near the side of the flat conveyor 80. Since it is not possible to set a fixed blocking crossbar 86 to receive the products conveyed by the flat conveyor 80, 11 sets of transition bearings 92 (the bearing spacing is adapted to the width of the product to be tested 16) are evenly installed along the width direction of the buffer storage position 93. The transition bearings 92 are fixed to the buffer bracket 94 through the bearing seat, and their tops are 1-2mm higher than the top surface of the buffer belt 98. This height design can both slightly limit the product to be tested 16 through the top of the bearing to prevent it from sliding in the non-conveying state, and allow the product to be tested 16 to overcome the slight obstruction of the bearing through friction when the buffer belt 98 is running, and to smoothly slide over the top of the bearing without affecting normal conveying.

[0064] The side of the flat conveyor 80 away from the buffer storage 93 does not need to convey products to that side, so a blocking crossbar 86 is installed first to limit the movement. If that side is close to the fixture storage area 11 and the product loading area 12, and the space is too small to install a crossbar, then the same transition bearing 92 design as the end of the buffer storage 93 is adopted. The limit is achieved by the slight height difference at the top of the bearing, ensuring that the product to be tested 16 on the flat conveyor 80 can only be conveyed towards the buffer storage 93.

[0065] The deep storage design and differentiated limiting structure of the aforementioned buffer storage unit 90 not only doubles the buffer capacity but also ensures the stability of the conveying and storage of the products under test 16 through precise structural adaptation, forming an efficient synergy with the buffer elevator 70 and the horizontal conveying device 80. When the buffer storage unit 93 needs to retrieve materials, the buffer motor 95 first drives the buffer belt 98 to move closer to the horizontal conveying device 80, conveying the second row of products under test 16 located on the outer side to the horizontal conveying device 80, which then receives and conveys them to the transfer component 20. Subsequently, the buffer belt 98 rotates again, conveying the first row of products under test 16 located on the inner side to the front end of the buffer belt 98, where the horizontal conveying device 80 continues to receive and convey them, realizing the orderly flow of "last-in, first-out" storage. This ensures that the products in the buffer storage unit 93 are output sequentially according to the storage order, avoiding product retention and further guaranteeing the continuous and efficient operation of the entire feeding device, adapting to the high buffering requirements of large-scale production.

[0066] like Figure 2 , Figure 9 and Figure 10As shown, preferably, the material transfer assembly 20 includes a horizontal transfer mechanism 21, a vertical transfer mechanism 30, a vertical transfer mechanism 40, and a gripping mechanism 50; the horizontal transfer mechanism 21 is mounted on the worktable 10 and is used to drive the vertical transfer mechanism 30 to move along a first direction parallel to the worktable 10; the vertical transfer mechanism 30 is assembled at the drive end of the horizontal transfer mechanism 21 and is used to drive the vertical transfer mechanism 40 to move along a second direction parallel to the worktable 10 and perpendicular to the first direction; the vertical transfer mechanism 40 is assembled at the drive end of the vertical transfer mechanism 30 and is used to drive the gripping mechanism 50 to move along a third direction perpendicular to the worktable 10; the gripping mechanism 50 includes a vacuum suction cup 51 and a rotating assembly, the rotating assembly is assembled at the drive end of the vertical transfer mechanism 40, the vacuum suction cup 51 is mounted at the output end of the rotating assembly, the vacuum suction cup 51 is used to adsorb and grip the product 16 to be tested or the sub-tray 64, and the rotating assembly is used to drive the vacuum suction cup 51 and the gripped material to rotate around a vertical axis.

[0067] Specifically, the material transfer component 20, as the core execution component for realizing the cross-regional transfer of materials (product 16 to be tested and sub-pallet 64), needs to have the ability to move precisely in three-dimensional space and adjust its direction. Its specific structural design is as follows: 1. Transverse Transfer Mechanism 21: The transverse transfer mechanism 21 is arranged along the length direction (lateral, X-axis) of the worktable 10 to achieve large-scale lateral transfer of materials. It includes two sets of transverse transfer brackets 22 fixed to the worktable 10 at 1.5m intervals (adapting to the width of the worktable 10). A transverse transfer guide rail 23 (model HGH25CA) is installed parallel to the top of the bracket. The transverse transfer slide plate 24 is slidably connected to the guide rail via a linear slider to form a stable lateral movement guide. The power transmission adopts a "servo motor-planetary reducer-gear rack and pinion" structure: the transverse transfer rack 25 is fixed to the top surface of a set of brackets along the length direction of the guide rail. The transverse transfer motor 26 (selected MS1H4 series servo motor, rated power 400W) drives the transverse transfer gear through a PLF090 planetary reducer (reduction ratio 1:10). The gear meshes with the rack and pinion to drive the transverse transfer slide plate 24 to move along the X-axis. The repeatability of positioning reaches ±0.05mm, and the maximum moving speed is 1m / s, meeting the requirements of large-scale rapid transfer.

[0068] 2. Longitudinal Shift Mechanism 30: The longitudinal shift mechanism 30 is arranged along the width direction (longitudinal, Y-axis) of the worktable 10, straddling the worktable 10. Its longitudinal shift bracket 31 is fixed at both ends to two sets of transverse shift slides 24, and moves laterally synchronously with the transverse shift mechanism 21; the top surface of the bracket is fixed to the longitudinal shift guide rail 32 (same model HGH25CA) and the longitudinal shift rack 34. The longitudinal shift slide 33 is connected to the guide rail through a slider. The longitudinal shift motor 35 (same model servo motor) drives the longitudinal shift gear to mesh with the rack through a reducer, driving the longitudinal shift slide 33 to move along the Y-axis, forming a two-dimensional planar movement system of "transverse + longitudinal", covering the entire working area of ​​the worktable 10.

[0069] 3. Vertical Movement Mechanism 40: The vertical movement mechanism 40 is arranged in a direction perpendicular to the worktable 10 (vertical, Z-axis) to realize the lifting and lowering action of materials. Its vertical movement support 41 is fixed to the longitudinal movement slide plate 33 and moves synchronously with the longitudinal movement mechanism 30; the vertical movement guide rail 43 and the vertical movement rack 44 are respectively fixed to the vertical movement slide rod 42. The vertical movement slide rod 42 is slidably connected to the vertical movement guide rail 43 through a linear slider. The vertical movement motor 45 (same model servo motor) drives the vertical movement gear to mesh with the rack through a reducer, driving the slide rod to lift and lower along the Z-axis. The top of the slide rod is equipped with an anti-detachment block (diameter larger than the through hole size of the vertical movement support 41) to prevent the slide rod from falling off; the bottom end is connected to the gripping mechanism 50, with a lifting stroke of 1200mm and a positioning accuracy of ±0.03mm, ensuring stable picking and placing of materials.

[0070] 4. Gripping Mechanism 50: The gripping mechanism 50 integrates adsorption, rotation, and visual positioning functions to meet the needs of material orientation adjustment and precise gripping. ① Adsorption component: Two sets of vacuum suction cups 51 (diameter 45mm, vacuum degree -80kPa) are installed on the bottom surface of the rotating turntable 53 via a U-shaped frame. They can respectively adsorb the sub-tray 64 (weight ≤2kg) or a single product to be tested 16 (weight ≤5kg), ensuring gripping stability.

[0071] ② Rotating Component: The rotating support 52 is fixed to the bottom end of the vertical sliding rod 42. The rotating gear 55 is rotatably connected to the bottom surface of the support through a bearing. The rotating turntable 53 is fixed to the gear. The rotating motor 54 (same model servo motor) drives the rotating gear 55 through a reducer (reduction ratio 1:20) to achieve 0-360° rotation of the turntable at a speed of 5 r / min (low-speed design to adapt to the low friction of vacuum adsorption and prevent material slippage). When there is a 90° deviation in the placement direction of the product to be tested 16 in the flat conveying device 80 and the sub-tray 64, the rotating component can accurately adjust the direction to adapt to the directional requirements of different workstations.

[0072] ③ Visual positioning: A 2-megapixel industrial camera module (with an 8mm lens) is installed on the bottom surface of the rotary table 53. Combined with reflector positioning technology, it can identify the positional deviation (±0.5mm) and angular deviation (±1°) of the material and feed the data back to the controller. By adjusting the position of the horizontal and vertical movement mechanisms 30 and the angle of the rotating components, a closed-loop control of "visual guidance and precise gripping" is achieved, reducing the gripping positioning error from the traditional ±1mm to ±0.1mm.

[0073] Workflow Coordination Description: When it is necessary to transfer the product to be tested 16 from the buffer area to the sub-tray 64, the action flow of the transfer component 20 is as follows: The horizontal and vertical transfer mechanism 30 drives the gripping mechanism 50 to move above the buffer area flat conveyor 80 (X and Y axis positioning); the vertical transfer mechanism 40 drives the gripping mechanism 50 to descend (Z axis), the vacuum suction cup 51 adsorbs the product to be tested 16, and the camera simultaneously identifies the product's directional deviation; the vertical transfer mechanism 40 rises, and the rotating component rotates and adjusts the product's direction to the appropriate angle for the sub-tray 64 based on visual feedback; the horizontal and vertical transfer mechanism 30 drives the gripping mechanism 50 to move above the sub-tray 64 of the product loading area 12; the vertical transfer mechanism 40 descends, the vacuum suction cup 51 releases, and the product is accurately placed into the sub-tray 64; all mechanisms reset, ready for the next gripping.

[0074] The material transfer component 20 achieves efficient material transfer between the fixture storage area 11, the product loading area 12, and the buffer area through the coordination of four levels of mechanisms and visual guidance. The single-cycle material transfer time is ≤5 seconds, which is 8 times more efficient than traditional manual material transfer. Moreover, the positioning accuracy meets the requirements of automated production, providing core support for the efficient operation of the device.

[0075] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high-efficiency automatic feeding device, characterized in that, include: The worktable (10) is installed in the cabinet. The worktable (10) is provided with a fixture storage area (11) for storing the unloaded aging fixture (60) and a product loading area (12) for loading the product to be tested (16). An aging fixture (60) is used to connect an aging test device and a product to be tested (16). The aging fixture (60) includes an aging tray (62) and multiple sub-trays (64) stacked on the aging tray (62). Each sub-tray (64) is used to store a product to be tested (16). The aging fixture (60) is also provided with a docking bus. One end of the docking bus is electrically connected to the aging fixture (60), and the other end is provided with multiple plug terminals (61). Each plug terminal (61) is electrically connected to the product to be tested (16) on the corresponding sub-tray (64). The transfer component (20) is installed on the worktable (10). The transfer component (20) is used to grab the empty sub-tray (64) in the aging fixture (60) of the fixture storage area (11) and move it to the aging tray (62) of the product loading area (12). It is also used to grab the product to be tested (16) transferred from the previous process and move it to the empty sub-tray (64) of the aging tray (62) of the product loading area (12). It can also grab new empty sub-trays (64) and stack them on the sub-tray (64) that has been loaded with the product to be tested (16). The first conveying component (13) is installed in the product loading area (12) of the worktable (10). The first conveying component (13) is used to convey the aging fixture (60) loaded with the product to be tested (16) and the sub-pallets (64) to the aging test equipment of the next process when the number of sub-pallets (64) stacked on the aging pallet (62) of the product loading area (12) reaches a preset value.

2. The high-efficiency automatic feeding device according to claim 1, characterized in that, The sub-tray (64) has stacking rings (65) at the four corners of its bottom surface and stacking posts (66) at the four corners of its top surface, which correspond to the stacking rings (65). The bottom end of the stacking post (66) is fixed to the sub-tray (64), and its top end is provided with a chamfered guide slope. The stacking ring (65) is fixed to the sub-tray (64), and its inner ring sidewall is provided with a chamfered guide slope so that the stacking post (66) can be guided and fitted when inserted.

3. The high-efficiency automatic feeding device according to claim 1, characterized in that, The side edge of the sub-tray (64) is provided with a limiting notch (69), and the aging tray (62) is provided with a limiting shaft (63) corresponding to the position of the limiting notch (69). The limiting notch (69) and the limiting shaft (63) cooperate with each other to provide a limiting and guiding function during the placement of the sub-tray (64) from top to bottom.

4. The high-efficiency automatic feeding device according to claim 1, characterized in that, It also includes a buffer lift (70) and a buffer storage unit (90) respectively installed on the work platform (10). The buffer storage unit (90) has multiple buffer storage positions (93), each buffer storage position (93) is used to temporarily store multiple products to be tested (16). The buffer lift (70) includes a lifting device (71) and a flat conveying device (80). The lifting device (71) is used to drive the flat conveying device (80) to move up and down along the multiple buffer storage positions (93) of the buffer storage unit (90). The flat conveying device (80) is used to carry the products to be tested (16) and transport the products to be tested (16) to the corresponding buffer storage position (93) or receive the products to be tested (16) from the buffer storage position (93) in the horizontal direction.

5. The high-efficiency automatic feeding device according to claim 4, characterized in that, The flat conveying device (80) includes a flat conveying bracket (81), a flat conveying motor (82) fixed to the flat conveying bracket (81), and a flat conveying main rim and a flat conveying slave roller (84) rotatably connected to the flat conveying bracket (81). A flat conveying belt (85) is fitted on the flat conveying main roller (83) and the flat conveying slave roller (84). The flat conveying main roller (83) is connected to the flat conveying motor (82) for transmission, so that the flat conveying motor (82) drives the flat conveying main roller (83) to rotate and drives the flat conveying belt (85) to move synchronously, thereby The product to be tested (16) placed on the conveyor belt (85) is conveyed horizontally; the conveyor device (80) is provided with a blocking component on the side facing the buffer storage position (93). The blocking component includes a blocking crossbar (86) and an avoidance cylinder (87). The two sets of avoidance cylinders (87) are respectively fixed to both ends of the conveyor bracket (81), and their piston rods are connected to the blocking crossbar (86) to drive the blocking crossbar (86) to move up and down, thereby achieving blocking or avoidance between the conveying and non-conveying states.

6. The high-efficiency automatic feeding device according to claim 5, characterized in that, The lifting device (71) includes two sets of lifting brackets (73), two sets of lifting slides (74), and a lifting crossbar (72). The two sets of lifting brackets (73) are respectively set at both ends of the work platform (10) corresponding to the flat conveying device (80). The two sets of lifting slides (74) are respectively assembled on the corresponding lifting brackets (73). The two ends of the lifting crossbar (72) are respectively fixed to the driving ends of the two sets of lifting slides (74). The flat conveying bracket (81) of the flat conveying device (80) is fixed to the lifting crossbar (72). This is so that when the two sets of lifting slides (74) operate synchronously, they drive the lifting crossbar (72) and the flat conveying device (80) to move up and down synchronously.

7. The high-efficiency automatic feeding device according to claim 4, characterized in that, The buffer storage unit (90) includes two sets of buffer columns (91) arranged vertically. The buffer storage unit (93) includes a buffer support (94) arranged horizontally. The two ends of the buffer support (94) are respectively fixed to the buffer columns (91). The buffer storage unit (93) also includes a buffer motor (95), a buffer main roller (96), a buffer slave roller (97), and a buffer belt (98). The buffer motor (95) is fixed to the buffer support (94) and is connected to the buffer main roller (96) for transmission. The buffer main roller (96) and the buffer slave roller (97) are both rotatably connected to the buffer support (94). The buffer belt (98) is sleeved between the buffer main roller (96) and the buffer slave roller (97) to drive the product to be tested (16) to be transported in the buffer storage unit (93).

8. The high-efficiency automatic feeding device according to claim 1, characterized in that, The material transfer assembly (20) includes a transverse transfer mechanism (21), a longitudinal transfer mechanism (30), a vertical transfer mechanism (40), and a gripping mechanism (50); the transverse transfer mechanism (21) is mounted on the worktable (10), the longitudinal transfer mechanism (30) is mounted on the drive end of the transverse transfer mechanism (21) to achieve transverse movement, the vertical transfer mechanism (40) is mounted on the drive end of the longitudinal transfer mechanism (30) to achieve longitudinal movement, and the gripping mechanism (50) is mounted on the drive end of the vertical transfer mechanism (40) to achieve vertical movement; the gripping mechanism (50) includes a vacuum suction cup (51) for gripping the product to be tested (16) or the sub-tray (64).

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