An adjustable tray conveying and lifting device

Abstract

This invention discloses an adjustable tray transport and lifting device, including a base plate, a conveying assembly, and a lifting assembly. The top of the base plate has two first slide rails extending in a first direction and parallel to each other. The conveying assembly is connected to the base plate and includes two conveying mechanisms spaced apart along the first direction. Each conveying mechanism includes a loading / unloading mechanism for moving the tray in a second direction, and two feeding mechanisms respectively located on both sides of the loading / unloading mechanism and capable of moving the tray in a third direction. At least one feeding mechanism in the same conveying mechanism is movably connected to the first slide rails. The lifting assembly is connected to the corresponding conveying mechanism and includes a detection position located above the conveying mechanism and several lifting plates capable of moving along the second direction. The lifting plates are used to move the tray between the detection position and the conveying mechanism. This invention overcomes the problem of poor compatibility with the size of incoming trays in existing tray loading / unloading devices.

Description

Technical Field

[0001] This invention relates to the field of automated loading and unloading equipment, and in particular to an adjustable material tray transport and lifting device. Background Technology

[0002] Trays, also known as material trays, are primarily used to hold various materials. Trays are commonly used in the semiconductor industry as chip carriers in chip manufacturing production lines. Existing tray loading and unloading devices mostly use fixed positioning posts to position the tray in four directions. This means that manual loading and unloading can only be done from above the positioning posts, causing difficulties and increasing labor costs. Furthermore, most methods involve manually placing entire tray assemblies with material into the corresponding loading bins, a process that requires the equipment to be stopped, resulting in low efficiency. Additionally, existing tray loading and unloading devices have poor compatibility with the dimensions of incoming trays.

[0003] Therefore, how to provide an adjustable tray conveying and lifting device to at least partially overcome the above-mentioned drawbacks is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable tray transport and lifting device that can overcome the drawback of only being able to place the whole chopped material tray group into the corresponding loading position when the equipment is stopped, thereby improving the sample transport efficiency. It can also overcome the problem of poor compatibility of the tray loading and unloading device with the size of the incoming tray in the prior art.

[0005] To achieve the above objectives, the present invention provides an adjustable tray conveying and lifting device, comprising:

[0006] The base plate has two parallel slide rails extending in a first direction at the top.

[0007] The conveying assembly is connected to the base plate. The conveying assembly includes two conveying mechanisms spaced apart along a first direction. Each conveying mechanism includes a loading and unloading mechanism for driving the material tray to move along a second direction, and two feeding mechanisms respectively arranged on both sides of the loading and unloading mechanism and capable of driving the material tray to move along a third direction. At least one feeding mechanism in the same conveying mechanism is movably connected to the first slide rail.

[0008] The lifting assembly is connected to the corresponding conveying mechanism. Each lifting assembly includes a detection position located above the conveying mechanism and several lifting plates that can move in a second direction. The lifting plates are used to drive the material tray to move between the detection position and the conveying mechanism.

[0009] The first direction, the second direction, and the third direction are perpendicular to each other.

[0010] Preferably, the feeding mechanism includes:

[0011] The track plate extends along a third direction. On the opposite side of the two track plates in the same conveying mechanism, several pulleys and conveyor belts connected to the pulleys are installed to transport the material trays mounted on top of the two conveyor belts along a third direction.

[0012] The support plate is attached to the bottom of the track slab and is used to support the track slab.

[0013] Preferably, the loading and unloading mechanism is located at one end of the conveying mechanism in the third direction, and both the loading and unloading mechanisms include:

[0014] Mounting plate fixed to the corresponding support plate;

[0015] A lifting cylinder is connected to the mounting plate, and the lifting cylinder is located between two track plates in the same conveying mechanism;

[0016] The material tray guide block is located at the top of the lifting cylinder and connected to the piston end of the lifting cylinder. The lifting cylinder can drive the material tray located at the top of the material tray guide block to move in the second direction.

[0017] Preferably, the lifting components further include a fixed plate, a plurality of first support rods and a plurality of second support rods connected to the bottom of the fixed plate and extending along the second direction. The first support rods are connected to one track plate of the same feeding mechanism, and the second support rods are connected to another track plate of the same feeding mechanism. The fixed plate is provided with a plurality of first openings to form detection positions, and the first openings are used for the corresponding lifting plates to pass through.

[0018] Preferably, each lifting component includes a lifting mechanism corresponding to the lifting plate. Each lifting mechanism includes a first power source and a transmission component. The first power source is fixed to the track plate. The transmission component includes a first lead screw extending in a second direction and a first lead screw nut sleeved on the first lead screw. The first lead screw is connected to the output end of the first power source and a fixed plate. The lifting plate includes a first plate body connected to the first lead screw nut, and the first plate body is slidably connected to a first support rod. The first power source can drive the first lead screw to rotate around its own axis so that the first plate body connected to the first lead screw nut moves in the second direction.

[0019] Preferably, the top of each of the first plates is provided with a second slide rail extending along the first direction;

[0020] The lifting plate also includes:

[0021] The second plate is slidably connected to the first support rod and connected to the second slide rail;

[0022] The third plate is slidably connected to the second support rod and slidably connected to the second slide rail;

[0023] The fourth plate is located above the second and third plates and is fixedly connected to the second plate. The fourth plate is used to support the material tray.

[0024] Preferably, the track plate is provided with a baffle plate at one end facing the third direction, the baffle plate being adjacent to the loading and unloading mechanism to limit the material tray from sliding down the conveyor belt;

[0025] The top of the track plate is equipped with a pressure plate and a support plate, with the support plate used to support the conveyor belt located between the pressure plate and the support plate;

[0026] The track plate has several first grooves on the third-order upward. The bottom of the first groove is lower than the height of the pallet. The first groove is used to allow the fourth plate to move to be flush with the conveyor belt located between the pressure plate and the pallet.

[0027] Preferably, it further includes a pitch adjustment component, the pitch adjustment component comprising:

[0028] Adjust the width of the fixing plate and fix it to the base plate;

[0029] Several pitch adjustment mechanisms are provided, each including a second power source fixed to a pitch adjustment plate, a second lead screw connected to the output end of the second power source and extending along a first direction, the second lead screw passing through all the support plates, and the second lead screw being threadedly connected to a support plate connected to the first slide rail via a second lead screw nut. The second power source can drive the second lead screw to rotate around its own axis to drive the support plate connected to the second lead screw nut to move along the first direction.

[0030] Preferably, a handwheel is connected to the end of the second lead screw that is away from the second power source, and the handwheel can drive the second lead screw to rotate around its own axis.

[0031] Preferably, the conveying mechanism further includes:

[0032] The third power source is fixed to the track slab;

[0033] The drive shaft is connected to the output end of the third power source. The drive shaft is fixedly connected to a set of opposite pulleys in the same conveying mechanism to drive the two conveyor belts in the same conveying mechanism to run synchronously.

[0034] Compared to the aforementioned background technology, the adjustable tray transport and lifting device provided by the present invention includes a base plate, a conveying assembly, and a lifting assembly. The top of the base plate is provided with two first slide rails extending along a first direction and parallel to each other. The conveying assembly is connected to the base plate and includes two conveying mechanisms spaced apart along the first direction. Each conveying mechanism includes a loading and unloading mechanism for driving the tray to move along a second direction, and two feeding mechanisms respectively arranged on both sides of the loading and unloading mechanism and capable of driving the tray to move along a third direction. At least one feeding mechanism in the same conveying mechanism is movably connected to the first slide rail. The lifting assembly is connected to the corresponding conveying mechanism and includes a detection position located above the conveying mechanism and a plurality of lifting plates capable of moving along the second direction. The lifting plates are used to drive the tray to move between the detection position and the conveying mechanism. The first direction, the second direction, and the third direction are perpendicular to each other.

[0035] Specifically, after the tray is placed at the loading position, it moves along a second direction to two feeding mechanisms corresponding to the loading and unloading mechanism after a loading and unloading mechanism. Then, it moves along a third direction to a preset position. Driven by the lifting component, it moves along the second direction to the detection position for testing and dispensing of the samples in the tray. Afterward, driven by the lifting component, the tray containing the tested samples moves to another conveying mechanism and moves to the unloading position under the drive of the feeding mechanism and the corresponding loading and unloading mechanism. During the loading and unloading process, the feeding mechanism and the lifting component can also operate, which can overcome the drawback that the whole tray with material can only be placed into the corresponding loading position when the equipment is stopped, thereby improving the sample conveying efficiency. The top of the base plate is provided with a first slide rail, and at least one feeding mechanism in the same conveying mechanism is movably connected to the first slide rail. The distance between the two feeding mechanisms in the same conveying mechanism can be adjusted, which is suitable for trays of various sizes and can overcome the problem of poor compatibility of the incoming tray size in the existing tray loading and unloading device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the adjustable tray conveying and lifting device provided in an embodiment of the present invention;

[0038] Figure 2 for Figure 1 The main view;

[0039] Figure 3 for Figure 1 Side view;

[0040] Figure 4 for Figure 1 Top view;

[0041] Figure 5 This is a schematic diagram of the conveying mechanism provided in an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the lifting component provided in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the lifting component provided in an embodiment of the present invention from another perspective;

[0044] Figure 8 This is a schematic diagram of the loading and unloading mechanism provided in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of the feeding mechanism provided in an embodiment of the present invention.

[0046] in:

[0047] 100 - Base plate, 110 - First slide rail;

[0048] 210-Loading / unloading mechanism, 211-Mounting plate, 212-Lifting cylinder, 213-Plate guide block, 220-Feeding mechanism, 221-Track plate, 222-Pulley, 223-Conveyor belt, 224-Support plate, 225-Baffle plate, 226-Pressure plate, 227-Panel, 228-First trough, 230-Third power source, 240-Drive shaft;

[0049] 310 - Detection position, 320 - Lifting plate, 321 - First plate body, 322 - Second slide rail, 323 - Second plate body, 324 - Third plate body, 325 - Fourth plate body, 326 - Slider, 330 - Fixed plate, 340 - First support rod, 350 - Second support rod, 361 - First power source, 362 - First lead screw, 363 - First lead nut;

[0050] 400-material tray;

[0051] 510-Width adjustment fixing plate, 521-Second power source, 522-Second lead screw, 523-Second lead nut, 524-Handwheel. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this invention.

[0055] The purpose of this invention is to provide an adjustable tray 400 transport and lifting device, which can overcome the drawback that the whole chopped material tray group can only be placed into the corresponding loading position when the equipment is stopped, thereby improving the sample transport efficiency. It can also overcome the problem that the existing tray loading and unloading devices have poor compatibility with the size of the incoming tray.

[0056] It should be noted that in this embodiment, the X direction in the attached figure is defined as the first direction, the Y direction as the second direction, and the Z direction as the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0057] Please see Figures 1 to 5 To achieve the above objectives, the present invention provides an adjustable tray 400 transport and lifting device, comprising a base plate 100, a conveying assembly, and a lifting assembly. The top of the base plate 100 is provided with two first slide rails 110 extending along a first direction and parallel to each other; the conveying assembly is connected to the base plate 100 and includes two conveying mechanisms spaced apart along the first direction. Each conveying mechanism includes a loading / unloading mechanism 210 for driving the tray 400 to move along a second direction, and two feeding mechanisms 220 respectively disposed on both sides of the loading / unloading mechanism 210 and capable of driving the tray 400 to move along a third direction. At least one feeding mechanism 220 in the same conveying mechanism is movably connected to the first slide rails 110; two lifting assemblies are provided, and the lifting assemblies are connected to the corresponding conveying mechanisms. Each lifting assembly includes a detection position 310 located above the conveying mechanism and a plurality of lifting plates 320 capable of moving along the second direction. The lifting plates 320 are used to drive the tray 400 to move between the detection position 310 and the conveying mechanism.

[0058] After the material tray 400 is placed at the loading position, it moves along the second direction to the two feeding mechanisms 220 corresponding to the loading / unloading mechanism 210 after being placed at the loading / unloading position 210. Then, it moves along the third direction to a preset position and moves along the second direction to the detection position 310 under the drive of the lifting component. The samples in the material tray 400 are then detected and packaged. Afterward, the material tray 400 containing the detected samples moves to another conveying mechanism under the drive of the lifting component and moves to the unloading position under the drive of the feeding mechanism 220 and the corresponding loading / unloading mechanism 210. During the feeding and unloading process, the feeding mechanism... The 220 and lifting components can also operate, overcoming the drawback that the whole chopped material tray group can only be placed into the corresponding loading position when the equipment is stopped, thereby improving the sample conveying efficiency; the top of the base plate 100 is provided with a first slide rail 110, and at least one feeding mechanism 220 in the same conveying mechanism is movably connected to the first slide rail 110, which can adjust the distance between the two feeding mechanisms 220 in the same conveying mechanism, and is suitable for material trays 400 of various sizes, which can overcome the problem that the existing tray loading and unloading devices have poor compatibility with the size of the incoming tray.

[0059] In this embodiment, one conveying mechanism and one lifting component serve as a feeding module for conveying the Tray disc assembly from the feeding position to the detection position 310. Another conveying mechanism and another lifting component serve as a discharging module for conveying the Tray disc assembly from the detection position 310 to the discharging position. Specifically, the feeding mechanism 210 of the feeding module conveys the Tray disc assembly from the feeding position to position A (first position). Then, the feeding mechanism 220 of the feeding module conveys the Tray disc assembly from position A to position B (second position). Subsequently, driven by the lifting component of the feeding module, it moves to position C (third position) of the detection position 310. Under the action of the robotic arm, the DIE semi-finished material in the feeding Tray disc assembly is transported to the testing platform for testing. The robotic arm then transfers the DIE material from the testing platform to position D of the detection position 310 based on the test results. Inside the tray, an external robotic arm repeatedly retrieves DIE material from the tray at position C, tests it on the testing platform, and transfers the DIE material from the testing platform to the tray at position D of the detection position 310 based on the test results. This continues until the tray at position D is full of DIE material. The lifting component of the unloading module (supporting the tray at position D) descends by one tray thickness displacement value. Simultaneously, the external robotic arm picks up the empty tray at the detection position 310 and moves it to position D. This process is repeated until the tray at position D accumulates to a certain thickness. Then, driven by the lifting component of the unloading module, it is transferred from position D to position E. Subsequently, driven by the feeding mechanism 220 of the unloading module, it is transferred to position F. Finally, the unloading mechanism 210 of the unloading module lifts and moves the tray at position F to the unloading position for unloading.

[0060] It should be noted that, in the lifting assembly of the feeding module, the detection positions 310 can be divided into C1, C2, C3, C4, C5, etc., according to the number of lifting plates 320. Similarly, in the lifting assembly of the unloading module, the detection positions 310 can be divided into D1, D2, D3, D4, D5, etc., according to the number of lifting plates 320. Taking the case where there are three lifting plates 320 in both the feeding and unloading modules, C1 and C2 can be used as placement positions for tray chopping groups containing products to be tested, and C3 can be used as placement positions for empty tray chopping groups. D1, D2, and D3 serve as placement positions corresponding to the three types of test results. The three empty trays on C3 can be placed on D1, D2, and D3 respectively by a robotic arm. Then, the robotic arm carries the DIE material on C1 and C2 to the testing platform for testing, and the material is placed on one of D1, D2, or D3 according to the test results. This process is repeated continuously. When empty trays appear on C1 and C2, the robotic arm transfers the empty trays to C3. When trays on D1, D2, and D3 are full, the robotic arm picks up the empty trays from C3 to replenish the trays.

[0061] Please see Figure 9 In one embodiment, each feeding mechanism 220 includes a track plate 221 and a support plate 224. The track plate 221 extends in a third direction. On the opposite side of two track plates 221 in the same conveying mechanism, several pulleys 222 and a conveyor belt 223 connected to the pulleys 222 are mounted. The connection between each pulley 222 is realized through the conveyor belt 223. The conveyor belt 223 can be adjusted by a tensioning wheel. The conveyor belt 223 can move along a closed track under the drive of the pulleys 222, and is used to convey the material tray 400 mounted on the top of the two conveyor belts 223 in a third direction. The support plate 224 is connected to the bottom of the track plate 221 and is used to support the track plate 221. The support plate 224 can be fastened with M5 screws and set at both ends of the corresponding track plate 221 in the third direction. Each conveying mechanism also includes a third power source 230 and a drive shaft 240. The third power source 230 can be a motor and fixed to the track plate 221. The drive shaft 240 is connected to the output end of the third power source 230 and is fixedly connected to a set of opposite pulleys 222 in the same conveying mechanism to drive the two conveyor belts 223 in the same conveying mechanism to run synchronously. A bearing is provided between the pulleys 222 connected to the output end of the third power source 230 and the track plate 221.

[0062] Furthermore, the track plate 221 is provided with a baffle plate 225 at one end in the third direction, which is adjacent to the loading and unloading mechanism 210 to limit the material tray 400 from sliding down the conveyor belt 223; the top of the track plate 221 is provided with a pressure plate 226 and a support plate 227, which is used to support the conveyor belt 223 located between the pressure plate 226 and the support plate 227; the track plate 221 is provided with a plurality of first grooves 228 in the third direction, the bottom of the first grooves 228 being lower than the height of the support plate 227, and the first grooves 228 being used to allow the fourth plate 325 at the top of the lifting plate 320 to move to be flush with the conveyor belt 223 located between the pressure plate 226 and the support plate 227; the top of the first grooves 228 is provided with guide blocks at both ends in the third direction for conveying the tray between the two parts of the conveyor belt 223 on both sides of the first groove 228 in the third direction, that is, the guide blocks are used to realize the over-conveying of the tray on the first groove 228.

[0063] Please see Figure 8 In one embodiment, the loading and unloading mechanism 210 is disposed at one end of the conveying mechanism in the third direction. Each loading and unloading mechanism 210 includes a mounting plate 211 fixed to a corresponding support plate 224, a lifting cylinder 212 connected to the mounting plate 211, and a tray guide block 213 located at the top of the lifting cylinder 212 and connected to the piston end of the lifting cylinder 212. The top of the tray guide block 213 is provided with a positioning and anti-foolproof mechanism (e.g., asymmetrically distributed positioning posts) for adapting to the groove at the bottom of the tray, to improve the contact between the tray and the tray guide block 213. To enhance stability, the mounting plate 211 and the fixed end of the lifting cylinder 212, as well as the piston end of the lifting cylinder 212 and the tray guide block 213, can be secured with M4 screws. The mounting plate 211 and the support plate 224 can be secured with M5 screws. The lifting cylinder 212 is located between two track plates 221 in the same conveying mechanism. The lifting cylinder 212 can drive the tray 400 located on top of the tray guide block 213 to move in the second direction. The tray guide block 213 can be replaced according to the size and structure of the tray to achieve the above objectives.

[0064] The loading and unloading of the Tray disc cutting assembly on the loading and unloading mechanism 210 can be carried out in two ways. One way is to manually move the Tray disc cutting assembly to the loading position, and then move it away when the Tray disc cutting assembly is delivered from the unloading position. The other way is to connect with other external processes, and the loading and unloading of the Tray disc is carried out by the gantry robot. The loading and unloading mechanism 210 can be set at the same end of the conveying mechanism in the third direction to facilitate the connection with the upstream and downstream processes to realize the automated connection function of the equipment.

[0065] Please see Figure 6 and Figure 7In one embodiment, the lifting assembly further includes a fixed plate 330, a plurality of first support rods 340 connected to the bottom of the fixed plate 330 and extending along a second direction, and a plurality of second support rods 350. The first support rods 340 are connected to one track plate 221 of the same feeding mechanism 220, and the second support rods 350 are connected to another track plate 221 of the same feeding mechanism 220. The fixed plate 330 has a plurality of first openings to form detection positions 310, and the first openings are used for corresponding lifting plates 320 to pass through. The lifting assembly includes a lifting mechanism corresponding to the lifting plate 320, and the lifting mechanism includes a first support rod 340 connected to the bottom of the fixed plate 330 and extending along a second direction. A power source 361 and a transmission assembly are provided. The first power source 361 is fixed to the track plate 221. The transmission assembly includes a first lead screw 362 extending along a second direction and a first lead screw nut 363 sleeved on the first lead screw 362. The first lead screw 362 is connected to the output end of the first power source 361 and the fixed plate 330. The lifting plate 320 includes a first plate body 321 connected to the first lead screw nut 363, and the first plate body 321 is slidably connected to the first support rod 340. The first power source 361 can drive the first lead screw 362 to rotate around its own axis so that the first plate body 321 connected to the first lead screw nut 363 moves along the second direction.

[0066] Understandably, the first power source 361 can be an electric motor, which is fixed to the track plate 221 by a motor mounting bracket. One end of the first lead screw 362 is connected to the rotating shaft of the motor via a coupling, and the other end of the first lead screw 362 is rotatably connected to the bottom of the fixed plate 330 via a bearing. The rotation of the rotating shaft drives the first lead screw 362 to rotate around its own axis, causing the first lead screw nut 363 connected to the first lead screw 362 to move along the extension direction of the first lead screw 362. The first lead screw nut 363 is connected to the first plate 321, and the first plate 321 is slidably connected to the first support rod 340, which restricts the rotation of the first plate 321 around the axis of the first lead screw 362 while guiding the movement of the first plate 321. The first plate 321 is provided with a drag chain fixing sheet metal for connecting the drag chain, which is used to traction the movement of the first plate 321.

[0067] It should be noted that the bottom of the fixing plate 330 is also connected to a vertically extending connecting plate. The vertical surface of the connecting plate on the outer side can be used to fix the cable chain. At the same time, an origin slot-shaped switch can be set on the connecting plate, and a sensor fixing piece is set on the first plate 321. Through the cooperation of the origin slot-shaped switch and the sensor fixing piece, the position of the first plate 321 can be known in time. In addition, the fixing plate 330 is also provided with a feeding sensor fixing block for fixing the fiber optic sensor, which can obtain the feeding information of the detection position 310. The lifting plate 320 is also provided with a feeding stop on the third-party upward side. By setting the feeding stop, the Tray disc assembly that moves to the lifting plate 320 can be blocked, so that the Tray disc assembly can enter the preset position of the lifting plate 320.

[0068] In one embodiment, the top of each of the first plate bodies 321 is provided with a second slide rail 322 extending along a first direction; the lifting plate 320 further includes a second plate body 323, a third plate body 324, and a fourth plate body 325. The second plate body 323 is slidably connected to the first support rod 340 and connected to the second slide rail 322; the third plate body 324 is slidably connected to the second support rod 350 and slidably connected to the second slide rail 322; the fourth plate body 325 is located above the second plate body 323 and the third plate body 324 and is fixedly connected to the second plate body 323, and the fourth plate body 325 is used to support the material tray 400; wherein, the second slide rail 322 at the top of the first plate body 321 can be provided with two... The bottoms of the second plate 323 and the third plate 324 are slidably connected to the first plate 321 via a slider 326 adapted to the second slide rail 322. The slider 326 is used to limit the relative movement of the third plate 324 and the first plate 321 in the second direction, so that the third plate 324 can move synchronously with the first plate 321 in the second direction under the drive of the first plate 321 and under the guidance of the second support rod 350. The second plate 323 and the third plate 324 can be set with the same thickness to ensure the stability of the fourth plate 325 located above the second plate 323 and the third plate 324 and fixedly connected to the second plate 323.

[0069] In one embodiment, a pitch adjustment assembly is also included. The pitch adjustment assembly includes a width adjustment fixing plate 510 and several pitch adjustment mechanisms. The width adjustment fixing plate 510 is fixedly connected to the base plate 100. Each pitch adjustment mechanism includes a second power source 521 fixed to the width adjustment fixing plate 510 and a second lead screw 522 connected to the output end of the second power source 521 and extending along a first direction. The second lead screw 522 passes through all the support plates 224 and is threadedly connected to a support plate 224 connected to the first slide rail 110 via a second lead screw nut 523. The second power source 521 can drive the second lead screw 522 to rotate around its own axis to drive the support plate 224 connected to the second lead screw nut 523 to move along the first direction.

[0070] It should be noted that the number of adjusting mechanisms corresponds one-to-one with the feeding mechanisms 220 connected to the first slide rail 110. For example, when two feeding mechanisms 220 are connected to the first slide rail 110, two adjusting mechanisms should be set up for separate control. When three feeding mechanisms 220 are connected to the first slide rail 110, three adjusting mechanisms should be set up for separate control. The width adjusting fixing plate 510 can be set on one side of the conveying assembly to fix the second power source 521. When the same feeding mechanism 220 has two support plates 224, the same adjusting mechanism should be equipped with two sets of second wires. The levers 522 are respectively installed on the corresponding support plates 224, and the two sets of second lead screws 522 are rotated synchronously by the conveyor belt and the pulley connected to the second lead screw 522. The two lead screws are driven to rotate synchronously by a second power source 521, so that the support plate 224 connected to the corresponding second lead screw 522 moves along the extension direction of the first slide rail 110, thereby adjusting the distance between the two feeding mechanisms 220 in the same conveying mechanism. At the same time as the feeding mechanism 220 moves relative to each other, the third plate 324 also moves relative to the second plate 323 along the extension direction of the second slide rail 322 under the drive of the second support rod 350.

[0071] In addition, a handwheel 524 is connected to the end of the second lead screw 522 that is away from the second power source 521. The handwheel 524 can drive the second lead screw 522 to rotate around its own axis, which can also realize the position adjustment of the feeding mechanism 220 on the first slide rail 110. The first track is also provided with a support width adjustment slider fixing block to fix the slider located at the bottom of the support plate 224. At the same time, a drag chain is provided on the feeding mechanism 220 that can slide relative to the first track for the movement traction of the feeding mechanism 220. An origin switch can be set on the first track. At the same time, a track sensor plate is set on the support plate 224 to obtain the position of the feeding mechanism 220 on the first track. A track sensor lock block is also provided on the first track to ensure the safe and stable operation of the track and to trigger braking under certain circumstances to prevent accidents.

[0072] In summary, the adjustable tray 400 transport and lifting device provided in this application includes a conveying mechanism and a lifting component as a feeding module for conveying the tray chopping group from the feeding position to the detection position 310, and another conveying mechanism and another lifting component as a discharging module for conveying the tray chopping group from the detection position 310 to the discharging position. The conveying steps specifically include the following steps.

[0073] Step 1: Place the entire stack of Tray trays into the loading and unloading mechanism 210 at the front of the loading module. Under the action of the lifting cylinder 212, the entire stack of Tray trays can be lowered onto the conveyor belt 223 of the conveying mechanism. Under the action of the third power source 230, the entire stack of Tray trays is transported backward.

[0074] Step 2: Under the action of the first power source 361, the lifting plate 320 enters the corresponding waiting position and waits. When the entire stack of trays moves to the waiting position and is blocked by the feeding block, the feeding sensor installed on the feeding block senses the signal and starts the first power source 361. Under the action of the first lead screw and the first lead screw nut 363, the trays move upward, causing the trays to detach from the conveyor belt 223.

[0075] Step 3: Repeat the operations of Step 1 and Step 2 to raise the tray group with material and the empty tray group to the detection position 310, so that the detection position 310 has two full tray groups and one empty tray group.

[0076] Step 4: Take the empty tray from the loading area in Step 3 and place it in the detection position 310 of the unloading module. It can be divided into three categories according to the actual situation. After the external robot arm sorts the finished materials according to the system, it will unload them into the trays of the corresponding detection positions 310.

[0077] Step 5: Repeat the operations of Step 3 and Step 4 above to complete the detection and material distribution. When the number of trays at the detection position 310 in the feeding module reaches the set value, the system will give a signal. Under the action of the motor, the trays will move downward. When the system gives the feeding signal, the conveyor belt 223 in the feeding module will be stationary.

[0078] Step 5: When the first power source 361 drives the tray to move downward to the conveyor belt 223, the third power source 230 used to drive the conveyor belt 223 will reverse. Under the action of static friction, the tray will be driven to be conveyed to the front loading and unloading mechanism 210 along with the conveyor belt 223.

[0079] Step Six: The loading and unloading mechanism 210 in the unloading module lifts the unloading tray assembly under the lifting action of its lifting cylinder 212, thus separating the tray assembly from the conveyor belt 223, thereby completing one complete unloading cycle.

[0080] The adjustable tray 400 transport and lifting device is equipped with two conveying mechanisms, and a tray loading and unloading mechanism 210 is set at the front end of the two conveying mechanisms. At the same time, the lifting component is embedded between the two feeding mechanisms 220 of the conveying mechanism. This enables the tray group on the conveyor belt 223 to be directly driven by the first power source 361 to drive the first lead screw 362 to achieve a vibration-free lifting effect, thereby reducing the jitter of the wafer DIE in the tray group and preventing it from tipping over. At the same time, both conveying mechanisms can meet the adjustment function of the device to adapt to 4-inch and 5-inch IC wafer trays of different specifications through the distance adjustment mechanism. This enables the automatic loading and unloading of trays without stopping the machine in the existing wafer DIE testing and the automatic production line production that adapts to tray groups of multiple different sizes and specifications, thereby improving the flexibility and production efficiency of the equipment.

[0081] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0082] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0083] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. An adjustable tray conveying and lifting device, characterized in that, include: The base plate has two parallel slide rails extending in a first direction at the top. A conveying assembly is connected to the base plate. The conveying assembly includes two conveying mechanisms spaced apart along the first direction. Each conveying mechanism includes a loading and unloading mechanism for driving the material tray to move along the second direction, and two feeding mechanisms respectively disposed on both sides of the loading and unloading mechanism and capable of driving the material tray to move along the third direction. At least one of the feeding mechanisms in the same conveying mechanism is movably connected to the first slide rail. A lifting assembly is connected to the corresponding conveying mechanism. Each lifting assembly includes a detection position located above the conveying mechanism and a plurality of lifting plates that can move along the second direction. The lifting plates are used to drive the material tray to move between the detection position and the conveying mechanism. The first direction, the second direction, and the third direction are perpendicular to each other; The feeding mechanisms all include: The track plate extends along the third direction. On the opposite side of the two track plates in the same conveying mechanism, a number of pulleys and a conveyor belt connected to the pulleys are installed for conveying the material trays mounted on the top of the two conveyor belts along the third direction. A support plate, connected to the bottom of the track slab, is used to support the track slab; The loading and unloading mechanism is disposed at one end of the conveying mechanism in the third direction, and each loading and unloading mechanism includes: A mounting plate fixed to the corresponding support plate; A lifting cylinder is connected to the mounting plate, and the lifting cylinder is located between two track plates in the same conveying mechanism; A material tray guide block is located at the top of the lifting cylinder and connected to the piston end of the lifting cylinder. The lifting cylinder can drive the material tray located at the top of the material tray guide block to move along the second direction.

2. The adjustable tray conveying and lifting device according to claim 1, characterized in that, Each lifting assembly further includes a fixed plate, a plurality of first support rods and a plurality of second support rods connected to the bottom of the fixed plate and extending along the second direction. The first support rods are connected to one track plate of the same feeding mechanism, and the second support rods are connected to another track plate of the same feeding mechanism. The fixed plate has a plurality of first openings to form the detection positions, and the first openings are used for the corresponding lifting plates to pass through.

3. The adjustable tray conveying and lifting device according to claim 2, characterized in that, Each lifting component includes a lifting mechanism corresponding to the lifting plate. Each lifting mechanism includes a first power source and a transmission component. The first power source is fixed to the track plate. The transmission component includes a first lead screw extending along the second direction and a first lead screw nut sleeved on the first lead screw. The first lead screw is connected to the output end of the first power source and the fixed plate. The lifting plate includes a first plate body connected to the first lead screw nut, and the first plate body is slidably connected to the first support rod. The first power source can drive the first lead screw to rotate around its own axis so that the first plate body connected to the first lead screw nut moves along the second direction.

4. The adjustable tray conveying and lifting device according to claim 3, characterized in that, The top of each of the first plates is provided with a second slide rail extending along the first direction; The lifting plate also includes: The second plate is slidably connected to the first support rod and connected to the second slide rail; The third plate is slidably connected to the second support rod and slidably connected to the second slide rail; The fourth plate is located above the second plate and the third plate and is fixedly connected to the second plate. The fourth plate is used to support the material tray.

5. The adjustable tray conveying and lifting device according to claim 4, characterized in that, The track plate is provided with a baffle plate at one end in the third direction, the baffle plate being adjacent to the loading and unloading mechanism to limit the material tray from sliding down the conveyor belt; The top of the track plate is provided with a pressure plate and a support plate, the support plate being used to support the conveyor belt located between the pressure plate and the support plate; The track plate has a plurality of first grooves in the third direction. The bottom of the first groove is lower than the height of the pallet. The first groove is used to allow the fourth plate to move to be flush with the conveyor belt located between the pressure plate and the pallet.

6. The adjustable tray conveying and lifting device according to any one of claims 2-4, characterized in that, It also includes a pitch adjustment component, the pitch adjustment component comprising: A width-adjustable fixing plate is fixedly connected to the base plate; A plurality of pitch adjustment mechanisms, each comprising a second power source fixed to the pitch adjustment fixing plate, a second lead screw connected to the output end of the second power source and extending along the first direction, the second lead screw passing through all the support plates, and the second lead screw being threadedly connected to a support plate connected to the first slide rail via a second lead screw nut, the second power source being able to drive the second lead screw to rotate around its own axis to drive the support plate connected to the second lead screw nut to move along the first direction.

7. The adjustable tray conveying and lifting device according to claim 6, characterized in that, A handwheel is connected to the end of the second lead screw that is away from the second power source. The handwheel can drive the second lead screw to rotate around its own axis.

8. The adjustable tray conveying and lifting device according to claim 6, characterized in that, Each of the conveying mechanisms also includes: The third power source is fixed to the track plate; A drive shaft is connected to the output end of the third power source. The drive shaft is fixedly connected to a set of oppositely arranged pulleys in the same conveying mechanism to drive the two conveyor belts in the same conveying mechanism to run synchronously.

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