Feeding device

Abstract

The utility model relates to a feeding device. The feeding device comprises a transfer mechanism used for loading a material frame, a plurality of material trays arranged in the vertical direction are loaded on the material frame, and each material tray is loaded with a workpiece; the lifting mechanism comprises a lifting table and a first positioning piece, the lifting table is provided with a butt joint end, and the transfer mechanism can move to be in butt joint with the butt joint end so that the material frame on the transfer mechanism can be transferred to the lifting table; the first positioning piece is located at the butt joint position of the butt joint end and the transfer mechanism and can be controllably matched with or separated from the transfer mechanism in a positioning mode. The lifting table controllably drives the material frame on the lifting table to ascend or descend, so that the material trays on the material frame sequentially pass through a material taking station; and the material taking mechanism is used for pulling the material tray reaching the material taking station out of the material frame or pushing the material tray back into the material frame, and is also used for picking up the workpieces on the material tray pulled out of the material frame.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor testing, in particular to a feeding device. Background Art

[0002] IGBT (Insulated Gate Bipolar Transistor) is a composite fully controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor). It has the advantages of high input impedance of MOSFET and low on-state voltage drop of GTR. IGBT modules need to be tested, such as reactive aging test. In actual production, IGBT modules are manually loaded onto the test equipment one by one, and the IGBT modules on it are tested using the test equipment. However, manual loading has the disadvantages of low loading efficiency and easy confusion of product models. Utility Model Content

[0003] Based on this, it is necessary to provide a feeding device that improves the above defects in view of the problems that manual feeding is used during testing in the prior art, the feeding efficiency is low and product models are easily confused.

[0004] A feeding device, comprising:

[0005] A transfer mechanism, used for loading a material frame, on which a plurality of material trays arranged in a vertical direction are loaded, each of which is loaded with a workpiece;

[0006] A lifting mechanism, comprising a lifting platform and a first positioning member, wherein the lifting platform has a docking end, and the transfer mechanism can move to dock with the docking end so that the material frame on the transfer mechanism can be transferred to the lifting platform; the first positioning member is located at the docking point between the docking end and the transfer mechanism, and can be controlled to be positioned with or separated from the transfer mechanism; the lifting platform can controllably drive the material frame thereon to rise or fall, so that each of the material trays on the material frame passes through a material picking station in sequence; and

[0007] The material picking mechanism is used to pull the material tray that has arrived at the material picking station out of the material frame or push it back into the material frame, and is also used to pick up the workpiece on the material tray pulled out from the material frame.

[0008] In one embodiment, the transfer mechanism has a loading space for loading the material frame and an opening for the material frame to enter and exit the loading space, and a side of the transfer mechanism having the opening can be docked with the docking end, so that the material frame can be transferred to the lifting platform through the opening;

[0009] The transfer mechanism is provided with a material blocking member located at the opening, and the material blocking member can move to a material blocking state that blocks the material frame from entering and exiting the loading space through the opening, and to an avoidance state that allows the material frame to enter and exit the loading space through the opening.

[0010] In one embodiment, the lifting mechanism further includes a first detector, the first detector is arranged corresponding to the docking end and is communicatively connected with the first positioning member, and the first detector is used to detect whether the transfer mechanism reaches a position for docking with the docking end;

[0011] When the first detector detects that the transfer mechanism moves to a position for docking with the docking end, the first positioning member switches to a position for coordination with the transfer mechanism.

[0012] In one embodiment, the lifting platform includes a lifting seat and a roller conveying assembly arranged on the lifting seat, the lifting seat can be raised or lowered in a controlled manner, one end of the roller conveying assembly serves as the docking end, and the roller conveying assembly is used to carry the material frame transferred by the transfer mechanism;

[0013] The lifting platform also includes a second detector installed on the lifting seat, the second detector is located at the docking end, and is used to detect whether the material frame is transferred from the transfer mechanism to the roller conveying assembly; the second detector is communicatively connected to the roller conveying assembly, and when the second detector detects that the material frame is transferred from the transfer mechanism to the roller conveying assembly, the roller conveying assembly starts and conveys the material frame to a preset position.

[0014] In one embodiment, the roller conveying assembly includes a plurality of rollers, a transmission assembly and a drive assembly, each of the rollers is rotatably connected to the lifting seat, and each of the rollers is arranged parallel to each other and is used to carry the material frame transferred by the transfer mechanism;

[0015] Each of the rollers is rotatable relative to the lifting seat, and each two adjacent rollers are connected in transmission via the transmission assembly. The driving assembly is installed on the lifting seat and is connected in driving relation to any of the rollers.

[0016] In one embodiment, the driving assembly includes a rotary driving member, a second driving wheel, a second transmission belt and a second driven wheel; the rotary driving member is mounted on the lifting seat, the second driving wheel is mounted on the output shaft of the rotary driving member, the second driven wheel is mounted on any one of the rollers, and the second transmission belt is sleeved between the second driving wheel and the second driven wheel.

[0017] In one of the embodiments, the lifting platform further comprises a third detector mounted on the lifting seat, and the third detector is used to detect whether the material frame on the roller conveying assembly reaches the preset position;

[0018] When the third detector detects that the material frame on the roller conveying assembly reaches the preset position, the roller conveying assembly stops conveying the material frame.

[0019] In one embodiment, the lifting platform further comprises a second positioning member disposed on the lifting seat, and the second positioning member is communicatively connected to the third detector;

[0020] When the third detector detects that the material frame on the roller conveying assembly reaches the preset position, the second positioning member switches to positioning cooperation with the material frame on the roller conveying assembly.

[0021] In one of the embodiments, the loading device also includes a supporting mechanism arranged at the material picking station, the supporting mechanism includes a support seat and two guide bars provided on the support seat, the two guide bars are parallel to each other and arranged at intervals, and the material tray pulled out of the material frame by the material picking mechanism is supported on the two guide bars and slides along the longitudinal extension direction of the two guide bars.

[0022] In one embodiment, the two guide bars have guide grooves on the sides facing each other, and the guide grooves extend along the longitudinal direction of the guide bars. The opposite side edges of the material tray pulled out of the material frame are respectively supported on the guide grooves of the two guide bars.

[0023] In the actual use of the above-mentioned feeding device, first, the transfer mechanism moves to the loading area to load the material frame, and then moves to the lifting platform and docks with the butt end of the lifting platform. Then, the first positioning member is controlled to be positioned and coordinated with the transfer mechanism, so as to ensure that the transfer mechanism remains in the same position and avoid the butt end of the transfer mechanism and the lifting platform from being separated. Then, the material frame on the transfer mechanism is pushed onto the lifting platform. Then, the lifting platform drives the material frame to be lifted until the material tray on the top layer of the material frame reaches the material picking station. Then, the material picking mechanism pulls the material tray on the top layer out of the material frame, and transfers each workpiece on the pulled-out material frame to the inspection station for inspection. Then, the material picking mechanism pushes the material tray on the top layer back into the material frame. Then, the lifting mechanism drives the material frame to be lifted again until the material tray on the next layer on the material frame reaches the material picking station. Then, the material picking mechanism pulls out the material tray on the material frame that has reached the material picking station, and transfers each workpiece on the pulled-out material frame to the inspection station for inspection. Then, the material taking mechanism pushes the material tray pulled out of the material frame back into the material frame again, and the cycle repeats until all the workpieces on each material tray on the material frame are taken away.

[0024] After all the workpieces on the trays on the material frame are removed, the lifting platform drives the empty material frame on it to descend to the initial position, so that the butt end of the lifting platform is docked with the transfer mechanism again. At this time, the empty material frame on the lifting platform is pushed onto the transfer mechanism. Finally, the first positioning member is controlled to separate from the transfer mechanism. The transfer mechanism moves to the reloading area for loading, in preparation for the next loading.

[0025] In this way, the above-mentioned loading device utilizes the transfer mechanism to transfer the material frame, and then utilizes the lifting platform to lift the material frame on it step by step, so that each layer of material tray in the material frame reaches the material picking station layer by layer, so that the material picking mechanism can pick up the workpieces in each layer of material tray in turn at the material picking station, thereby realizing batch loading of workpieces. The loading process has a high degree of automation, avoids manual loading, greatly improves the loading efficiency, and avoids the phenomenon of mixing up product models. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a feeding device in one embodiment of the utility model;

[0027] Figure 2 for Figure 1 The structural schematic diagram of the feeding device shown in FIG. 1 from another perspective;

[0028] Figure 3 for Figure 1 The structural schematic diagram of the feeding device shown in FIG. 1 from another perspective;

[0029] Figure 4 for Figure 1 A side view of the feeding device shown;

[0030] Figure 5 for Figure 1 The shown diagram is a partial enlarged view of the loading device at the lifting platform (some frame components are omitted). DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] See also Figures 1 to 3 As shown, an embodiment of the utility model provides a loading device, including a transfer mechanism 10, a lifting mechanism 20 and a material taking mechanism 30. The transfer mechanism 10 is used to load a material frame a1, on which a plurality of material trays a2 arranged in a vertical direction are loaded, and each material tray a2 is loaded with a plurality of workpieces (not marked in the figure). The lifting mechanism 20 includes a lifting platform 21 and a first positioning member 22, and the lifting platform 21 has a docking end 210. The transfer mechanism 10 can move to dock with the docking end 210 of the lifting platform 21, so that the material frame a1 on the transfer mechanism 10 can be transferred to the lifting platform 21. The first positioning member 22 is located at the docking point between the docking end 210 and the transfer mechanism 10, and can be controlled to be positioned, matched or separated with the transfer mechanism 10. The lifting platform 21 can controllably drive the material frame a1 thereon to rise or fall, so that each material tray a2 on the material frame a1 passes through a material taking station A in sequence. The material taking mechanism 30 is used to pull the material tray a2 arriving at the material taking station A out of the material frame a1 or push it back into the material frame a1, and also to pick up the workpiece on the material tray a2 pulled out of the material frame a1. Optionally, the transfer mechanism 10 can be a transfer trolley, and the material taking mechanism 30 can be a manipulator.

[0038] In the actual use of the above-mentioned loading device, first, the transfer mechanism 10 moves to the loading area to load the material frame a1, and then moves to the lifting platform 21 and docks with the docking end 210 of the lifting platform 21. Then, the first positioning member 22 is controlled to be positioned and matched with the transfer mechanism 10, so as to ensure that the transfer mechanism 10 remains in the same position and avoid the transfer mechanism 10 and the docking end 210 of the lifting platform 21 from being separated. Then, the material frame a1 on the transfer mechanism 10 is pushed onto the lifting platform 21. Then, the lifting platform 21 drives the material frame a1 to be lifted until the material tray a2 on the top layer of the material frame a1 reaches the material picking station A. Then, the material picking mechanism 30 pulls the material tray a2 on the top layer out of the material frame a1, and transfers each workpiece on the pulled-out material frame a1 to the inspection station for inspection. Then, the material picking mechanism 30 pushes the material tray a2 on the top layer back into the material frame a1. Then, the lifting mechanism 20 drives the material frame a1 to be lifted again until the next material tray a2 on the material frame a1 reaches the material taking station A. Then, the material taking mechanism 30 pulls out the material tray a2 on the material frame a1 that has reached the material taking station A, and transfers each workpiece on the pulled-out material frame a1 to the inspection station for inspection. Then, the material taking mechanism 30 pushes the material tray a2 pulled out of the material frame a1 back into the material frame a1. This cycle is repeated until all the workpieces on each material tray a2 on the material frame a1 are taken away.

[0039] After all the workpieces on the trays a2 on the material frame a1 are removed, the lifting platform 21 drives the empty material frame a1 on it to descend to the initial position, so that the docking end 210 of the lifting platform 21 docks with the transfer mechanism 10 again. At this time, the empty material frame a1 on the lifting platform 21 is pushed onto the transfer mechanism 10. Finally, the first positioning member 22 is controlled to separate from the transfer mechanism 10. The transfer mechanism 10 moves to the reloading area for loading, in preparation for the next loading.

[0040] In this way, the above-mentioned loading device utilizes the transfer mechanism 10 to transfer the material frame a1, and then utilizes the lifting platform 21 to lift the material frame a1 thereon step by step, so that each layer of material tray a2 in the material frame a1 reaches the material picking station A layer by layer, so that the material picking mechanism 30 can pick up the workpieces in each layer of material tray a2 in turn at the material picking station A, thereby realizing batch loading of workpieces. The loading process has a high degree of automation, avoids manual loading, greatly improves the loading efficiency, and avoids the phenomenon of mixing up product models.

[0041] It should be noted that, in other embodiments, after the material frame a1 on the transfer mechanism 10 is pushed onto the lifting platform 21, first, the lifting platform 21 drives the material frame a1 thereon to rise to the highest position, so that the material tray a2 on the lowest layer of the material frame a1 reaches the material picking station A; then, the material picking mechanism 30 pulls the material tray a2 on the lowest layer out of the material frame a1, and transfers each workpiece on the pulled-out material frame a1 to the inspection station for inspection. Then, the material picking mechanism 30 pushes the material tray a2 on the lowest layer back into the material frame a1. Then, the lifting mechanism 20 drives the material frame a1 to descend again until the upper material tray a2 on the material frame a1 reaches the material picking station A. Then, the material picking mechanism 30 pulls out the material tray a2 on the material frame a1 that reaches the material picking station A, and transfers each workpiece on the pulled-out material frame a1 to the inspection station for inspection. Then, the material picking mechanism 30 pushes the material tray a2 pulled out of the material frame a1 back into the material frame a1. This cycle repeats until all the workpieces on the material trays a2 on the material frame a1 are removed. In other words, the lifting platform 21 drives the material frame a1 on it to descend step by step, so that the material trays a2 of each layer in the material frame a1 reach the material picking station A layer by layer, so that the material picking mechanism 30 picks up the workpieces in the material trays a2 of each layer in the material picking station A in turn, thereby realizing batch loading of workpieces.

[0042] It should also be noted that the above-mentioned workpiece may be an IGBT module, and of course may also be other products that need to be tested, which is not limited here.

[0043] Specifically in the embodiment, the feeding device further comprises a frame 50 which mainly plays a supporting role, and the lifting platform 21 , the first positioning member 22 and the material taking mechanism 30 are all mounted on the frame 50 .

[0044] Specifically in the embodiment, the lifting mechanism 20 also includes a first detector 23 installed on the frame 50. The first detector 23 is arranged corresponding to the docking end 210 of the lifting platform 21 and is communicatively connected with the first positioning member 22. The first detector 23 is used to detect whether the transfer mechanism 10 has reached the position of docking with the docking end 210. When the first detector 23 detects that the transfer mechanism 10 has reached the position of docking with the docking end 210, the first positioning member 22 is controlled to be positioned and matched with the transfer mechanism 10, so as to position and fix the transfer mechanism 10 at the position of docking with the docking end 210, so as to facilitate pushing the material frame a1 on the transfer mechanism 10 onto the lifting platform 21. It should be noted that the first detector 23 can be a photoelectric sensor. Of course, in other embodiments, the first detector 23 can also be other types of sensors, as long as it can detect that the transfer mechanism 10 has reached the position of docking with the docking end 210, and it is not limited here.

[0045] Optionally, the loading device further includes a controller (not shown), and the first detector 23 sends a docking signal to the controller when it detects that the transfer mechanism 10 reaches the docking position with the docking end 210. After receiving the docking signal, the controller sends a positioning signal to the first positioning member 22, and the first positioning member 22 performs a positioning and coordination action with the transfer mechanism 10 after receiving the positioning signal. It should be noted that the controller can be an industrial computer or other modules with control functions, which are not limited here.

[0046] Optionally, the first positioning member 22 may be a positioning cylinder. When the moving end of the positioning cylinder is extended, the moving end of the positioning cylinder is positioned and matched with the transfer mechanism 10, thereby realizing the positioning of the transfer mechanism 10. When the moving end of the positioning cylinder is retracted, the moving end of the positioning cylinder is separated from the transfer mechanism 10, thereby enabling the transfer mechanism 10 to leave the position of docking with the docking end 210 of the lifting platform 21. It should be noted that the moving end of the positioning cylinder can be positioned to the transfer mechanism 10 by means of snap connection, abutment, or pin-hole matching, which is not limited here.

[0047] Optionally, two first positioning members 22 may be provided, and the two first positioning members 22 are respectively located on opposite sides of the docking end 210, so that the two first positioning members 22 are used to jointly position the transfer mechanism 10, and the positioning effect is better. Of course, the number of the first positioning members 22 can also be one or more than two, as long as the transfer mechanism 10 can be positioned, and this is not limited here.

[0048] Specifically in the embodiment, the transfer mechanism 10 has a loading space 12 and an opening 13, the loading space 12 is used to load the material frame a1, and the opening 13 is used to feed the material frame a1 into and out of the loading space 12. The side of the transfer mechanism 10 having the opening 13 can be docked with the docking end 210, so that the material frame a1 in the loading space 12 can be transferred to the lifting platform 21 through the opening 13, and the material frame a1 on the lifting platform 21 can also be transferred to the loading space 12 of the transfer mechanism 10 through the opening 13.

[0049] Furthermore, the transfer mechanism 10 is provided with a material blocking member 11 located at the opening 13, and the material blocking member 11 can move to a material blocking state or an avoidance state. When the material blocking member 11 moves to the material blocking state, the material blocking member 11 can block the material frame a1 from entering and exiting the loading space 12 through the opening 13. When the material blocking member 11 moves to the avoidance state, the material blocking member 11 allows the material frame a1 to enter and exit the loading space 12 through the opening 13. In this way, after the transfer mechanism 10 loads the material frame a1 in the loading area, the material blocking member 11 is controlled to move to the material blocking state to prevent the material frame a1 from slipping from the opening 13 during the transfer process. When the transfer mechanism 10 moves to dock with the docking end 210 of the lifting platform 21 and is positioned by the first positioning member 22, the material blocking member 11 is controlled to move to an avoidance state, so that the material frame a1 in the loading space 12 of the transfer mechanism 10 can be pushed onto the lifting platform 21, and the material frame a1 on the lifting platform 21 can also be pushed into the loading space 12 of the transfer mechanism 10.

[0050] Optionally, the blocking member 11 is rotatably connected to the transfer mechanism 10 via a pin, so that the blocking member 11 can be rotated to the blocking state or the avoidance state by manually moving the blocking member 11. Of course, the blocking member 11 can also be automatically switched between the blocking state and the avoidance state by a driving member such as a motor or a cylinder.

[0051] Optionally, two material blocking members 11 can be provided, and the two material blocking members 11 are respectively located at opposite sides of the opening 13, so that the two material blocking members 11 are used to block the material frame a1 from entering and exiting the loading space 12 through the opening 13, which has a better effect. Of course, the number of material blocking members 11 can also be one or more than two, as long as the effect of blocking the material frame a1 can be achieved, which is not limited here.

[0052] Optionally, the transfer mechanism 10 is provided with a plurality of supporting rollers (not shown), and the material frame a1 entering or exiting the loading space 12 through the opening 13 is supported on each supporting roller, so that it is more labor-saving to push the material frame a1 through the opening 13 to enter and exit the loading space 12, greatly reducing the labor intensity. Of course, in other embodiments, a driving member may also be provided to drive each supporting roller to rotate, thereby driving the material frame a1 thereon to enter and exit the loading space 12 through the opening 13.

[0053] In the embodiment of the present application, the lifting platform 21 includes a lifting seat 211 disposed on the frame 50 and a roller conveying assembly 212 disposed on the lifting seat 211. The lifting seat 211 can be controlled to rise or fall relative to the frame 50, and one end of the roller conveying assembly 212 serves as the above-mentioned docking end 210. The roller conveying assembly 212 is used to carry the material frame a1 transferred by the transfer mechanism 10.

[0054] The lifting platform 21 also includes a second detector 24 installed on the lifting seat 211. The second detector 24 is located at the docking end 210 and is used to detect whether a material frame a1 is transferred from the transfer mechanism 10 to the roller conveying assembly 212. The second detector 24 is in communication connection with the roller conveying assembly 212. When the second detector 24 detects that the material frame a1 is transferred from the transfer mechanism 10 to the roller conveying assembly 212, the roller conveying assembly 212 starts and conveys the material frame a1 to a preset position, which greatly improves the degree of automation and reduces labor intensity. In this way, after the transfer mechanism 10 is docked with the docking end 210, first, the first positioning member 22 positions the transfer mechanism 10; then, the material blocking member 11 is rotated to the avoidance state, and the material frame a1 on the transfer mechanism 10 is pushed onto the roller conveying assembly 212, so that the second detector 24 detects that a material frame a1 is transferred from the transfer mechanism 10 to the roller conveying assembly 212. At this time, the roller conveyor assembly 212 is started, so that the material frame a1 is conveyed to the preset position, that is, the material frame a1 is transferred from the transfer mechanism 10 to the roller conveyor assembly 212. It should be noted that the second detector 24 can be a photoelectric sensor. Of course, in other embodiments, the second detector 24 can also be other types of sensors, as long as it can detect whether the material frame a1 enters the roller conveyor assembly 212, which is not limited here.

[0055] Furthermore, the second detector 24 is connected to the roller conveyor assembly 212 through the controller. When the second detector 24 detects that the material frame a1 is transferred from the transfer mechanism 10 to the roller conveyor assembly 212, the second detector 24 sends a feeding signal to the controller. After receiving the feeding signal, the controller sends a start signal to the roller conveyor assembly 212. After receiving the start signal, the roller conveyor assembly 212 starts and conveys the material frame a1 to a preset position.

[0056] Specifically in the embodiment, the lifting platform 21 also includes a third detector 25 installed on the lifting seat 211. The third detector 25 is used to detect whether the material frame a1 on the roller conveying assembly 212 has reached the preset position. When the third detector 25 detects that the material frame a1 on the roller conveying assembly 212 has reached the preset position, the roller conveying assembly 212 stops conveying the material frame a1. It should be noted that the third detector 25 can be a photoelectric sensor. Of course, in other embodiments, the third detector 25 can also be other types of sensors, as long as it can detect whether the material frame a1 has reached the preset position, which is not limited here.

[0057] Furthermore, the lifting platform 21 further includes a second positioning member 26 disposed on the lifting seat 211, and the second positioning member 26 is in communication connection with the third detector 25. When the third detector 25 detects that the material frame a1 on the roller conveying assembly 212 reaches a preset position, the second positioning member 26 switches to be positioned and matched with the material frame a1 on the roller conveying assembly 212, thereby fixing the material frame a1 on the roller conveying assembly 212 to prevent the material frame a1 from sliding off the roller conveying assembly 212.

[0058] Optionally, the second positioning member 26 may be a positioning cylinder. When the moving end of the positioning cylinder is extended, the moving end of the positioning cylinder is positioned and matched with the material frame a1 on the roller conveying assembly 212, thereby realizing the positioning of the material frame a1 on the roller conveying assembly 212. When the moving end of the positioning cylinder is retracted, the moving end of the positioning cylinder is separated from the material frame a1 on the roller conveying assembly 212, so that the material frame a1 can be transferred from the roller conveying assembly 212 to the transfer mechanism 10. It should be noted that the moving end of the positioning cylinder can realize the positioning of the material frame a1 by means of clamping, abutting or pin-hole matching, which is not limited here.

[0059] Furthermore, the third detector 25 is connected to the roller conveying assembly 212 and the second positioning member 26 through the controller. When the third detector 25 detects that the material frame a1 on the roller conveying assembly 212 reaches the preset position, the third detector 25 sends an in-position signal to the controller. After receiving the in-position signal, the controller sends a stop signal to the roller conveying assembly 212. After receiving the stop signal, the roller conveying assembly 212 stops, thereby stopping the conveyance of the material frame a1 thereon, so that the material frame a1 stays at the preset position waiting to be lifted. After receiving the in-position signal, the controller also sends a positioning signal to the second positioning member 26. After receiving the positioning signal, the second positioning member 26 performs the action of positioning the material frame a1 on the roller conveying assembly 212.

[0060] See also Figures 3 to 5As shown, specifically in the embodiment, the roller conveying assembly 212 includes a plurality of rollers 2121, a transmission assembly 2123 and a drive assembly 2125. Each roller 2121 is rotatably connected to the lifting seat 211, and each roller 2121 is arranged parallel to each other, and is used to carry the material frame a1 transferred by the transfer mechanism 10. Each roller 2121 is rotatable relative to the lifting seat 211, and each adjacent two rollers 2121 are connected by the transmission assembly 2123, so that when one of the rollers 2121 rotates, it can drive the adjacent roller 2121 to rotate. The drive assembly 2125 is installed on the lifting seat 211 and is connected to any roller 2121, so that the drive assembly 2125 can drive the roller 2121 connected to it to rotate. In this way, when it is necessary to transport the material frame a1 on the roller 2121, the drive assembly 2125 drives a roller 2121 connected to it to rotate. Since every two adjacent rollers 2121 are connected by the transmission assembly 2123 , when one roller 2121 rotates, it can drive the other rollers 2121 to rotate together, thereby realizing the conveyance of the material frame a1 on the roller 2121 .

[0061] Optionally, the transmission assembly 2123 includes a first driving wheel b1, a first driven wheel b2 and a first transmission belt b3, wherein the first driving wheel b1 and the first driven wheel b2 are respectively mounted on two adjacent rollers 2121, and the first transmission belt b3 is sleeved between the first driving wheel b1 and the first driven wheel b2, so that when one roller 2121 rotates, it can drive the other adjacent roller 2121 to rotate together. Of course, the transmission assembly 2123 is not limited to the belt transmission structure, and a chain transmission structure may also be used in other embodiments, as long as the rollers 2121 can rotate together, which is not limited here.

[0062] Furthermore, the driving assembly 2125 includes a rotating driving member c1, a second driving wheel c2, a second transmission belt c3 and a second driven wheel (not shown). The rotating driving member c1 is mounted on the lifting seat 211 and is connected to the second detector 24 and the third detector 25 through a controller. The second driving wheel c2 is mounted on the output shaft of the rotating driving member c1, so that the rotating driving member c1 can drive the second driving wheel c2 to rotate. The second driven gear is mounted on any roller 2121, so that the second driven gear can drive the roller 2121 to rotate. The second transmission belt c3 is sleeved between the second driving wheel c2 and the second driven wheel, so that when the second driving wheel c2 rotates, it can drive the second driven wheel to rotate through the second transmission belt c3. Thus, when the material frame a1 needs to be transported, the rotary drive member c1 drives the second driving wheel c2 to rotate, the second driving wheel c2 drives the second driven wheel to rotate through the second transmission belt c3, the second driven wheel then drives a roller 2121 on which it is located to rotate, the roller 2121 then drives other rollers 2121 to rotate, thereby realizing the transport of the material frame a1 supported on the roller 2121. Optionally, the rotary drive member c1 can be a motor.

[0063] Specifically in the embodiment, the lifting mechanism 20 further includes a lifting drive module 27, which is mounted on the frame 50, and the driving end of the lifting drive module 27 is connected to the lifting platform 21, so that the lifting drive module 27 can drive the lifting platform 21 to rise or fall. It should be noted that the lifting drive module 27 can adopt a relatively mature linear drive module, which is not limited here.

[0064] See also Figures 1 to 4 In the embodiment of the present application, the loading device further comprises a bearing mechanism arranged at the material taking station A. The bearing mechanism comprises a support seat (not shown) mounted on the frame 50 and two guide bars 40 arranged on the support seat. The two guide bars 40 are parallel to each other and arranged at intervals. The opposite side edges of the material tray a2 pulled out of the material frame a1 by the material taking mechanism 30 are supported on the two guide bars 40, and slide along the longitudinal extension direction of the two guide bars 40 under the pulling of the material taking mechanism 30.

[0065] Furthermore, the two guide bars 40 have guide grooves 41 on the sides facing each other (see Figure 4). The guide groove 41 extends along the longitudinal direction of the guide bar 40. The opposite side edges of the material tray a2 pulled out of the material frame a1 are supported on the guide grooves 41 of the two guide bars 40 respectively. On the one hand, the two guide bars 40 are used to support the material tray a2 pulled out of the material frame a1 to prevent the material tray a2 from falling; on the other hand, the guide grooves 41 on the two guide bars 40 are used to limit the material tray a2 pulled out of the material frame a1 to prevent the material tray a2 from deflecting, ensuring that the material tray a2 pulled out of the material frame a1 can be pushed back into the material frame a1 again.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A feeding device, characterized in that: include: A transfer mechanism (10) is used to load a material frame (a1), wherein the material frame (a1) is loaded with a plurality of material trays (a2) arranged in a vertical direction, and each of the material trays (a2) is loaded with a workpiece; A lifting mechanism (20) comprises a lifting platform (21) and a first positioning member (22), wherein the lifting platform (21) has a docking end (210), and the transfer mechanism (10) can move to dock with the docking end (210), so that the material frame (a1) on the transfer mechanism (10) can be transferred to the lifting platform (21); the first positioning member (22) is located at the docking position between the docking end (210) and the transfer mechanism (10), and can be controlled to be positioned, matched or separated from the transfer mechanism (10); the lifting platform (21) can controllably drive the material frame (a1) thereon to rise or fall, so that each of the material trays (a2) on the material frame (a1) passes through a material taking station (A) in sequence; and The material picking mechanism (30) is used to pull the material tray (a2) that has arrived at the material picking station (A) out of the material frame (a1) or push it back into the material frame (a1), and is also used to pick up the workpiece on the material tray (a2) pulled out from the material frame (a1).

2. The feeding device according to claim 1, characterized in that: The transfer mechanism (10) has a loading space (12) for loading the material frame (a1) and an opening (13) for the material frame (a1) to enter and exit the loading space (12); a side of the transfer mechanism (10) having the opening (13) can be docked with the docking end (210) so that the material frame (a1) can be transferred to the lifting platform (21) through the opening (13); The transfer mechanism (10) is provided with a material blocking member (11) located at the opening (13), and the material blocking member (11) can move to a material blocking state for blocking the material frame (a1) from entering or exiting the loading space (12) through the opening (13), and to an evasive state for allowing the material frame (a1) to enter or exit the loading space (12) through the opening (13).

3. The feeding device according to claim 1, characterized in that: The lifting mechanism (20) further comprises a first detector (23), the first detector (23) being arranged corresponding to the docking end (210) and being communicatively connected with the first positioning member (22), the first detector (23) being used to detect whether the transfer mechanism (10) has reached a position for docking with the docking end (210); When the first detector (23) detects that the transfer mechanism (10) moves to a position for docking with the docking end (210), the first positioning member (22) switches to a position for positioning with the transfer mechanism (10).

4. The feeding device according to claim 1, characterized in that: The lifting platform (21) comprises a lifting seat (211) and a roller conveying assembly (212) arranged on the lifting seat (211); the lifting seat (211) can be raised or lowered in a controlled manner; one end of the roller conveying assembly (212) serves as the docking end (210); and the roller conveying assembly (212) is used to carry the material frame (a1) transferred by the transfer mechanism (10); The lifting platform (21) also includes a second detector (24) installed on the lifting seat (211), and the second detector (24) is located at the docking end (210) and is used to detect whether the material frame (a1) is transferred from the transfer mechanism (10) to the roller conveying assembly (212); the second detector (24) is communicatively connected with the roller conveying assembly (212), and when the second detector (24) detects that the material frame (a1) is transferred from the transfer mechanism (10) to the roller conveying assembly (212), the roller conveying assembly (212) starts and conveys the material frame (a1) to a preset position.

5. The feeding device according to claim 4, characterized in that: The roller conveying assembly (212) comprises a plurality of rollers (2121), a transmission assembly (2123) and a driving assembly (2125), each of the rollers (2121) being rotatably connected to the lifting seat (211), and each of the rollers (2121) being arranged parallel to each other and used for carrying the material frame (a1) transferred by the transfer mechanism (10); Each of the rollers (2121) is rotatable relative to the lifting seat (211), and each two adjacent rollers (2121) are connected in transmission via the transmission assembly (2123). The driving assembly (2125) is installed on the lifting seat (211) and is connected in driving relation to any of the rollers (2121).

6. The feeding device according to claim 5, characterized in that: The driving assembly (2125) comprises a rotating driving member (c1), a second driving wheel (c2), a second transmission belt (c3) and a second driven wheel; the rotating driving member (c1) is mounted on the lifting seat (211), the second driving wheel (c2) is mounted on the output shaft of the rotating driving member (c1), the second driven wheel is mounted on any one of the rollers (2121), and the second transmission belt (c3) is sleeved between the second driving wheel (c2) and the second driven wheel.

7. The feeding device according to claim 4, characterized in that: The lifting platform (21) further comprises a third detector (25) mounted on the lifting seat (211), wherein the third detector (25) is used to detect whether the material frame (a1) on the roller conveying assembly (212) has reached the preset position; When the third detector (25) detects that the material frame (a1) on the roller conveying assembly (212) has reached the preset position, the roller conveying assembly (212) stops conveying the material frame (a1).

8. The feeding device according to claim 7, characterized in that: The lifting platform (21) further comprises a second positioning member (26) arranged on the lifting seat (211), and the second positioning member (26) is communicatively connected with the third detector (25); When the third detector (25) detects that the material frame (a1) on the roller conveying assembly (212) has reached the preset position, the second positioning member (26) switches to position and cooperate with the material frame (a1) on the roller conveying assembly (212).

9. The feeding device according to claim 1, characterized in that: The loading device also includes a supporting mechanism arranged at the material picking station (A), the supporting mechanism includes a support seat and two guide bars (40) arranged on the support seat, the two guide bars (40) are parallel to each other and arranged at intervals, and the material tray (a2) pulled out from the material frame (a1) by the material picking mechanism (30) is supported on the two guide bars (40) and slides along the longitudinal extension direction of the two guide bars (40).

10. The feeding device according to claim 9, characterized in that: The two guide bars (40) have guide grooves (41) on the sides facing each other, and the guide grooves (41) extend along the longitudinal direction of the guide bars (40). The opposite side edges of the material tray (a2) pulled out from the material frame (a1) are respectively supported on the guide grooves (41) of the two guide bars (40).

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