Nut feeding mechanism

Abstract

The utility model relates to a nut feeding mechanism which comprises a working table and a portal frame arranged on the working table, a feeding device is arranged at the position, located below the portal frame, of the working table, and the feeding device is connected with a vibration disc arranged on the working table through a linear feeder. A transversely-arranged first linear module is arranged at the position, close to the top, of the front face of the portal frame, and a second linear module is arranged on a sliding table of the first linear module; the second linear module is vertically arranged, and a material taking device fixedly connected with the second linear module is arranged on a sliding table of the second linear module. A third linear module is arranged on the side, located on the vibration disc, of the workbench, the third linear module is longitudinally arranged front and back, and a positioning carrier fixedly connected with a sliding table of the third linear module is arranged on the sliding table of the third linear module. The nut feeding mechanism is simple in structure and stable in operation, the nut feeding efficiency is improved, then the production and machining efficiency of products is improved, labor is saved, and the production and machining cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the loading technology of plastic nut burying, especially a nut loading mechanism. BACKGROUND

[0002] In the field of injection molding, in order to facilitate the subsequent assembly of injection molded parts, many plastic product is pre-buried with the corresponding specification nut in the cavity of the injection mold before injection molding. During injection molding, the hot melt plastic is combined with the nut. After the plastic is formed, the pre-buried nut is integrated with the plastic part. The combination between the two is relatively stable, which facilitates the subsequent connection and assembly of plastic products.

[0003] Currently, the plastic product with nut is usually placed in the cavity of the injection mold by manual operation during the injection molding process. Different specifications of nuts require different placement positions, and improper operation can easily cause mistakes, resulting in incorrect placement of nut specifications, causing plastic product to be unqualified, low efficiency, and low safety factor. In order to improve the efficiency and safety factor of the nut burying, the nut at the specified position is currently placed in the cavity of the injection mold by the robot gripper. In order to facilitate the robot gripper to grasp the nut at the specified position according to the set program, the current nut loading method is to manually take out the nut in advance and place it on a specially designed carrier, and then the robot gripper grasps it. This operation method is not efficient for nut loading, and it consumes labor, so that the overall processing efficiency cannot be effectively improved. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a nut loading mechanism that can improve the nut loading efficiency and save processing cost.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] A nut feeding mechanism includes a worktable and a gantry frame fixedly mounted on the worktable. A feeding device for facilitating nut feeding is located on the worktable below the gantry frame. The feeding device is connected to a vibrating plate on the worktable via a linear feeder. A first linear module is horizontally positioned near the top of the front of the gantry frame. A second linear module is fixedly connected to the slide of the first linear module. The first linear module can drive the second linear module to move left and right in the X direction. The second linear module is vertically positioned. A picking device is fixedly connected to the slide of the second linear module. The second linear module can drive the picking device to move up and down in the Z direction, and the picking device can move directly above the feeding device and descend to pick up the nut from the feeding device. A third linear module is located on one side of the vibrating plate on the worktable. The third linear module is longitudinally positioned front and back, passing under the bottom of the gantry frame. A positioning carrier is fixedly connected to the slide of the third linear module. The third linear module can drive the positioning carrier to move back and forth in the Y direction.

[0007] Furthermore, the feeding device includes a misalignment mechanism, which is fixedly mounted on the worktable via a support base. The misalignment mechanism includes a misalignment cylinder fixedly mounted on the top of the support base. The misalignment cylinder is horizontally positioned, and a pusher slider is slidably connected to the top of the misalignment cylinder. The pusher slider is fixedly connected to the piston rod of the misalignment cylinder, and the misalignment cylinder can drive the pusher slider to move left and right via its piston rod. A material seat is fixedly mounted on the top of the pusher slider, and a material groove with a top opening is provided on the center of one side of the material seat corresponding to the linear feeder. The nut can be placed in the material groove. A limit stop is fixedly mounted on the top of the support base. The limit stop is arranged side by side with the linear feeder corresponding to the feeding device, and the end of the limit stop corresponds to the side of the material seat with the material groove.

[0008] Furthermore, the material handling device includes a pneumatic finger, which is fixedly connected to the slide of the second linear module via a connecting seat. The pneumatic finger has two opening and closing claws, which are symmetrically arranged, and the symmetrical surface of the claws has a clamping groove that conforms to the outer circumferential surface of the nut.

[0009] Furthermore, the slide of the second linear module is equipped with a position sensor corresponding to the gripper.

[0010] Further, the positioning carrier comprises a carrier seat composed of a top plate and a bottom plate arranged in parallel from top to bottom, and the top plate and the bottom plate are fixedly connected together through vertical standing columns; the bottom plate is fixedly installed on the sliding table of the third linear module; the top of the top plate is provided with positioning sleeves for placing nuts, and the positioning sleeves are composed of a plurality of first positioning sleeves and a plurality of second positioning sleeves.

[0011] Further, the first positioning sleeve comprises a first limiting seat, the first limiting seat is in a 'convex' structure, the top of the first limiting seat is provided with a positioning groove in communication front and back, and the nut can be placed in the positioning groove with clearance fit; the depth of the positioning groove is less than the height of the nut, and the bottom center of the positioning groove is fixed by a vertical positioning column.

[0012] Further, the second positioning sleeve comprises a second limiting seat and an ejection cylinder corresponding to the second limiting seat from top to bottom; the second limiting seat is fixedly arranged on the top plate, the top center of the second limiting seat is provided with a cavity for placing nuts and in communication from top to bottom, the cavity is provided with a ejector pin in sliding fit from top to bottom; the ejection cylinder is vertically fixed below the bottom of the top plate through a fixing seat, the cylinder piston rod of the ejection cylinder is vertically upward, and the top of the cylinder piston rod is fixedly connected with the bottom of the ejector pin arranged in the cavity through the top plate.

[0013] Further, the top of the top plate has a vertical limiting column on one side, and the limiting column has a plurality of limiting columns arranged front and back along the length direction of the top plate.

[0014] Further, the feeding device has two groups, which are arranged symmetrically left and right, each group of the feeding device corresponds to a group of vibration discs, and the two groups of vibration discs are connected through linear feeders and arranged front and back.

[0015] Compared with the prior art, the nut feeding mechanism has the advantages that: the nut feeding mechanism has a simple structure, the vibration disc cooperates with the linear feeder to sequentially feed the nuts, the nuts are sent to the specified feeding device for the grabbing of the grabbing device, and the nuts are placed on the positioning sleeves arranged according to requirements through the grabbing device, so that the robot gripper can be easily grabbed, the operation is stable, the nut feeding efficiency is improved, the production and processing efficiency of products is improved, the labor is saved, and the production and processing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a front shaft side structure schematic view of the nut feeding mechanism of the utility model;

[0018] Figure 2 is a back shaft side structure schematic view of the nut feeding mechanism of the utility model;

[0019] Figure 3 is a taking device assembly structure schematic view of the nut feeding mechanism of the utility model;

[0020] Figure 4 is a feeding device structure schematic view of the nut feeding mechanism of the utility model;

[0021] Figure 5 is a misplacement mechanism structure schematic view of the nut feeding mechanism of the utility model;

[0022] Figure 6 is a positioning carrier structure schematic view of the nut feeding mechanism of the utility model;

[0023] Figure 7 is a first positioning sleeve structure schematic view of the nut feeding mechanism of the utility model;

[0024] Figure 8 is a second positioning sleeve structure schematic view of the nut feeding mechanism of the utility model;

[0025] Figure 9 is a second positioning sleeve side surface structure sectional view of the nut feeding mechanism of the utility model.

[0026] In the drawing: 1, workbench; 2, gantry; 21, first linear module; 22, second linear module; 3, vibration disc; 31, linear feeder; 4, feeding device; 41, support seat; 42, misplacement mechanism; 421, misplacement cylinder; 422, pushing slide block; 423, material seat; 4231, trough; 424, limiting stopper; 5, taking device; 51, pneumatic finger; 511, clamping jaw; 52, connecting seat; 53, position sensor; 6, third linear module; 7, positioning carrier; 71, bottom plate; 72, top plate; 73, stand column; 74, first positioning sleeve; 741, first limiting seat; 742, positioning groove; 743, positioning column; 75, second positioning sleeve; 751, second limiting seat; 7511, cavity; 752, fixing seat; 753, ejecting cylinder; 7531, cylinder piston rod; 754, ejector pin; 76, limiting column; 8, nut. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present application, it should be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0029] In addition, if the terms "horizontal", "vertical" and the like appear, it does not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure or component must be completely horizontal, but can be slightly inclined.

[0030] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0031] In the description of the embodiments of the present application, it should also be explained that, unless otherwise explicitly specified and limited, if the terms "set", "mount", "connected", "connected" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Embodiment

[0033] Please refer to the drawings Figure 1 and 2 shown, the drawings Figure 1 and 2 shown is a nut feeding mechanism embodiment of the utility model, the nut feeding mechanism is used for the pre-embedded feeding of nut 8 for injection molding parts on injection molding machine, it includes workbench 1 and gantry 2 fixedly arranged on workbench 1, the top surface of workbench 1 is horizontal, the gantry 2 is "Π" shaped structure, it is composed of crossbeam and the support column fixedly arranged in the left and right sides of the bottom of crossbeam, support column is fixedly installed on the top of workbench 1 by bolt, the gantry 2 is arranged at the part near the center of the top surface of workbench 1;In order to guarantee the feeding efficiency of nut 8, the part below gantry 2 on workbench 1 is provided with feeding device 4 for facilitating the feeding of nut 8, feeding device 4 is connected with vibration disc 3 arranged on workbench 1 by linear feeder 31, specifically, the discharge end of vibration disc 3 is connected with the feeding end of linear feeder 31, and the discharge end of linear feeder 31 corresponds with feeding device 4;Refer to the drawings Figure 4 and 5As shown, the feeder 4 includes a misplacement mechanism 42 fixedly arranged on the workbench 1 through a support base 41 fixedly installed on the workbench 1 by bolts; the misplacement mechanism 42 includes a misplacement air cylinder 421 fixedly arranged at the top of the support base 41, which is horizontally arranged and fixedly installed at the top of the support base 41 by bolts, and the piston rod of the misplacement air cylinder 421 can be telescopically extended in the left-right direction; a pushing block 422 is arranged at the top of the misplacement air cylinder 421 in sliding connection therewith, and the pushing block 422 further slides leftward and rightward with the misplacement air cylinder 421; in order to ensure the linearity and stability of the pushing block 422 when sliding leftward and rightward at the top of the misplacement air cylinder 421, the top of the misplacement air cylinder 421 is provided with an upward protrusion, and the bottom of the pushing block 422 is provided with a sliding groove in upward and downward cooperation with the protrusion, which is in leftward and rightward sliding cooperation with the protrusion to ensure that the pushing block 422 will not be deflected when sliding leftward and rightward at the top of the misplacement air cylinder 421; in order to drive the pushing block 422 to move leftward and rightward through the misplacement air cylinder 421, the pushing block 422 is fixedly connected with the end of the piston rod of the misplacement air cylinder 421, and the misplacement air cylinder 421 can drive the pushing block 422 to move leftward and rightward through the piston rod thereof; a material seat 423 for placing the nut 8 is fixedly arranged at the top of the pushing block 422, and is fixedly installed at the top of the pushing block 422 by bolts and can be disassembled and replaced as required; in order to facilitate the placement of the nut 8, a material groove 4231 with an open top is arranged on one side of the material seat 423 corresponding to the center of the discharge port of the linear feeder 31, and the nut 8 can be placed in the material groove 4231; it should be noted that the depth of the material groove 4231 is less than the height of the nut 8, and the nut 8 protrudes above the top of the material groove 4321 when placed in the material groove 4321, facilitating grabbing; in order to prevent the nut 8 in the material groove 4321 from falling out of the material groove 4321 when the material seat 423 moves, a limiting block 424 is fixedly arranged at the top of the support base 41, which is arranged leftward and rightward parallel to the linear feeder 31 corresponding to the feeder 4 and has a "┌" shaped structure, and the lower end of the limiting block 424 is fixedly connected with the top of the support base 41 by bolts, facilitating disassembly and assembly, and the front end of the limiting block 424 corresponds to one side of the material seat 423 having the material groove 4231 and is close to the material seat 423 with a small gap therebetween, without interfering with the movement of the limiting block 424;It needs to be explained that when the material seat 423 is retreated to the starting position by the piston rod of the staggered cylinder 421, the material groove 4231 on the material seat 423 corresponds to the discharge port of the linear feeder 31 corresponding to the feeding device 4, which facilitates the linear feeder 31 to deliver the nut 8 into the material groove 4231 corresponding thereto, and when the material seat 423 is pushed to the maximum extension position of the piston rod by the piston rod of the staggered cylinder 421, the material groove 4231 on the material seat 423 corresponds to the center of the end face of the limiting block 424, and it needs to be further explained that the distance between the limiting block 424 and the adjacent linear feeder 31 is smaller than the diameter of the nut 8; in order to improve the feeding efficiency, the feeding device 4 has two groups, which are symmetrically arranged below the bottom of the cross beam, each of the feeding device 4 corresponds to a group of vibration discs 3, and is connected through the linear feeder 31, in order to reasonably utilize the space of the workbench, the two groups of vibration discs 3 are arranged in front of and behind each other, and the corresponding linear feeder 31 is used to deliver the nut 8 to the corresponding feeding device 4, without manual transfer, saving labor, and improving the feeding efficiency of the nut 8; the gantry 2 has a first linear module 21 arranged transversely at a position close to the top of the front face, specifically, the first linear module 21 is fixedly arranged on the front face of the cross beam along the left-right length direction of the cross beam and is fixedly connected through bolts, convenient to disassemble and assemble, and the two groups of feeding devices 4 below the gantry 2 are correspondingly arranged above and below the first linear module 21; the slide table of the first linear module 21 is provided with a second linear module 22 fixedly connected thereto, and the first linear module 21 can drive the second linear module 22 to move in the X direction above the top of the two groups of feeding devices 4; the second linear module 22 is vertically arranged, and the slide table of the second linear module 22 is provided with a material taking device 5 fixedly connected thereto, and the second linear module 22 can drive the material taking device 5 to move in the Z direction, realize the lifting movement of the material taking device 5, the first linear module 21 can drive the second linear module 22 to move above the feeding device 4, the second linear module 22 drives the material taking device 5 to move synchronously, the material taking device 5 moves above the feeding device 4, and then descends through the second linear module 22 and can take the nut 8 from the feeding device 4 and rise; refer to the drawings in the specification; Figure 3As shown, the taking device 5 includes a pneumatic finger 51 fixedly connected to the slide table of the second linear module 22 through a connecting seat 52, and the second linear module 22 can drive the pneumatic finger 51 to move up and down through the slide table. In order to limit the up-and-down movement of the pneumatic finger 51 and ensure safety, one U-shaped photoelectric switch is arranged on one side of the second linear module 22 near the bottom and the bottom, respectively, and the two U-shaped photoelectric switches are in corresponding up-and-down relationship. An inductive sheet is fixedly arranged on one side of the slide table of the second linear module 22, which is on the same side as the U-shaped photoelectric switch. When the slide table of the second linear module 22 moves up and down, the inductive sheet can pass through the U-shaped photoelectric switch located above or below. When the inductive sheet passes through the U-shaped photoelectric switch, the second linear module 22 stops moving, thereby ensuring the safety of the running position of the slide table. The pneumatic finger 51 has two clamping jaws 511 that can open and close. The clamping jaws 511 are arranged downward, and the two clamping jaws 511 are symmetrical to each other. A clamping groove corresponding to the outer circumferential surface of the nut 8 is arranged on the symmetrical surface of the two clamping jaws 511, which facilitates the grasping of the nut 8. In order to sense whether the clamping jaw 511 grasps the nut 8, a position sensor 53 corresponding to the clamping jaw 511 is arranged on the slide table of the second linear module 22. The position sensor 53 is correspondingly inclined to the clamping jaw 511, and the height of the position sensor 53 is higher than that of the clamping jaw 511, which does not affect the taking and placing of the nut 8 by the clamping jaw 511.

[0034] In order to facilitate the taking device 5 to grasp the nut 8 on the feeding device 4 and supply the nut 8 to the required embedding position, and facilitate the subsequent robot gripper to grasp and feed, as shown in the accompanying drawings Figure 1 and 2 As shown, the workbench 1 is provided with a third linear module 6 on one side of the vibration disc 3. The third linear module 6 is longitudinally arranged in front and back, and the third linear module 6 passes below the bottom of the gantry 2. The taking device 5 can move above the top of the third linear module 6 through the follow-up of the first linear module 21. A positioning carrier 7 is fixedly connected to the slide table of the third linear module 6. The third linear module 6 can drive the positioning carrier 7 to move linearly in the Y direction. As shown in the accompanying drawings Figure 6As shown, the positioning carrier 7 comprises a carrier seat composed of a top plate 72 and a bottom plate 71 arranged in parallel from top to bottom, the top plate 72 and the bottom plate 71 are hollow, effectively reducing the weight, facilitating the third linear module 6 to drive the carrier seat to move, the top plate 72 and the bottom plate 71 are fixedly connected together through the vertically arranged stand column 73; the bottom plate 71 is fixedly installed on the sliding table of the third linear module 6 through bolts; the top of the top plate 72 is provided with a positioning sleeve for placing the nut 8, the positioning sleeve is composed of a plurality of first positioning sleeves 74 and a plurality of second positioning sleeves 75, the plurality of first positioning sleeves 74 and the plurality of second positioning sleeves 75 are arranged according to the pre-embedded position of the nut on the plastic part, wherein the first positioning sleeve 74 is an open positioning sleeve, the nut 8 protrudes outward after being placed, facilitating subsequent robot gripper grabbing, the second positioning sleeve 74 is a closed positioning sleeve, the nut 8 is completely located in the second positioning sleeve 74 after being placed, the two kinds of positioning sleeves 74 facilitate the embedding and use of nuts 8 in different positions in the subsequent injection mold cavity, for details, see the accompanying drawings Figure 7 As shown, the first positioning sleeve 74 comprises a first limiting seat 741, the first limiting seat 741 is in a "convex" structure, which is fixedly installed on the top plate 72 through bolts, the top of the first limiting seat 741 is provided with a positioning groove 742 communicating front and back, the nut 8 can be placed in the positioning groove 742 with clearance fit, in order to prevent the nut 8 placed in the positioning groove 742 from slipping off, the bottom center of the positioning groove 742 is fixedly provided with a vertically arranged positioning column 743, the nut 8 placed in the positioning groove 742 is sleeved outside the positioning column 743, in order for the subsequent robot gripper to grab the nut 8, the depth of the positioning groove 742 is less than the height of the nut 8, the nut 8 placed in the positioning groove 742 protrudes above the top of the positioning groove 742.

[0035] For details, see the accompanying drawings Figure 8 and 9As shown, the second positioning sleeve 75 comprises a second limiting seat 751 and an ejection cylinder 753 corresponding to the second limiting seat 751 up and down; the second limiting seat 751 is fixedly arranged on the top plate 72, and the top center thereof is provided with a cavity 7511 for placing the nut 8 and communicating up and down, the cavity 7511 is matched with the nut 8 with a gap, and does not interfere with the taking and placing of the nut 8, and the nut 8 placed in the cavity 7511 will not protrude above the top of the second limiting seat 751 in the later top, in order to facilitate the upward ejection of the nut 8 in the cavity 7511, the cavity 7511 is provided with a ejector pin 754 in sliding fit therewith up and down; the ejection cylinder 753 is vertically fixed below the bottom of the top plate 72 through a fixing seat 752, the cylinder piston rod 7531 of the ejection cylinder 753 is vertically upward, and the top of the cylinder piston rod 7531 is fixedly connected with the bottom of the ejector pin 754 arranged in the cavity 7511 upwardly penetrating the top plate 72, in order to facilitate the cylinder piston rod 7531 to penetrate the top plate 72, the top plate 72 is provided with a connecting hole communicating up and down at the position corresponding to the cavity 7511, the diameter of the connecting hole is greater than that of the cylinder piston rod 7531, facilitating the cylinder piston rod 7531 to penetrate the top plate 72 and be connected with the ejector pin 754 upwardly; in order to ensure safety, prevent the subsequent robot gripper from being lowered too low when grabbing the nut 8 from the positioning carrier 7 and interfering with the positioning carrier 7, the top of the top plate 72 has a limiting column 76 arranged vertically on one side, and the limiting column 76 has a plurality of columns arranged front and back along the length direction of the top plate 72.

[0036] The specific working principle is as follows: the nuts 8 are inverted in batches in the vibration disc 3, the vibration disc 3 transports the nuts 8 into the linear feeder 31 connected with the vibration disc 3, the nuts 8 sequentially enter the linear feeder 31, at this time, the material groove 4231 on the material seat 423 in the feeding device 4 corresponding to the linear feeder 31 corresponds to the discharge port of the linear feeder 31, the linear feeder 31 drives the first nut 8 in the linear feeder 31 to enter the corresponding material groove 4231, after the nut 8 enters the material groove 4231, the misaligned air cylinder 421 drives the material pushing slider 422 to move outward, the material pushing slider 422 drives the material seat 423 on the top to move synchronously, and stops when the material groove 4231 on the material seat 423 corresponds to the end face center of the limiting block 424, then the second linear module 22 drives the material taking device 5 to descend above the material seat 423 with the nut 8, and the nut 8 is clamped at the top of the material groove 4231 through the pneumatic finger 51, then the second linear module 22 drives the material taking device 5 to ascend, so that the nut 8 grabbed by the material taking device 5 is separated from the material groove 4231, after the nut 8 is separated from the material groove 4231, the material pushing slider 422 drives the material seat 423 to reset, and the material groove 4231 corresponds to the discharge port of the linear feeder 31 again, facilitating feeding; the material taking device 5 with the nut 8 moves synchronously with the second linear module 22, the first linear module 21 drives the second linear module 22 to move above the third linear module 6, at this time, the positioning carrier 7 moves below the bottom of the second linear module 22 through the third linear module 6, moves left and right through the first linear module 21 driving the second linear module 22, and moves forward and backward through the third linear module 6 driving the positioning carrier 7, so as to put the nut grabbed by the material taking device 5 into the specified first positioning sleeve 74 and the second positioning sleeve 75; when the subsequent robot gripper grabs the nut 8 from the positioning carrier 7, the nut 8 on the first positioning sleeve 74 can be directly grabbed by the robot gripper, and the nut 8 in the second positioning sleeve 75 needs to be pushed out by the ejecting cylinder 753 through the upward pushing of the ejecting cylinder piston rod 7531, so that the nut 8 in the cavity 7511 is driven to rise upward when the ejecting pin 754 is lifted upward, so that the top of the nut 8 extends above the top of the second limiting seat 751, facilitating the robot gripper to grab; the two groups of feeding devices 4 alternately feed, which can facilitate the material taking device 5 to continuously grab the nuts 8 and improve the feeding efficiency.

[0037] The nut feeding mechanism has the advantages of simple structure, sequential feeding of the nuts 8 through the vibration disc and the linear feeder 31, convenient grabbing of the nuts 8 by the material taking device on the specified feeding device 4, placement of the nuts 8 on the positioning sleeves arranged according to requirements by the material taking device 5, convenient grabbing of the nuts 8 by the robot gripper, stable operation, improved nut 8 feeding efficiency, improved product production and processing efficiency, saved labor, and reduced production and processing cost.

[0038] It should be emphasized that the above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A nut feeding mechanism, characterized in that: The utility model provides a nut feeding device, including workbench (1) and fixedly arranged gantry (2) on workbench (1), the part of workbench (1) is located below the gantry (2) and is provided with the feeding device (4) of facilitating nut (8) feeding, the feeding device (4) is connected with the vibration disc (3) of setting on workbench (1) through linear feeder (31), the first linear module (21) of transverse arrangement is provided with the second linear module (22) of fixed connection on the slide of first linear module (21) in the position of gantry (2) front near top, first linear module (21) can drive the second linear module (22) and make X -direction left and right linear motion, the second linear module (22) is vertically arranged, and the slide of second linear module (22) is provided with the fixed connection of taking material device (5) to it, the second linear module (22) can drive the taking material device (5) and make Z -direction up and down linear motion, and the taking material device (5) can move to the just above feeding device (4) and drop and take out nut (8) from feeding device (4), the third linear module (6) is provided with on the one side of vibration disc (3) on workbench (1), the third linear module (6) is longitudinally arranged before and after, and it passes through the bottom below gantry (2), and the slide of third linear module (6) is provided with the fixed connection of positioning carrier (7) to it, the third linear module (6) can drive the positioning carrier (7) and make Y -direction before and after linear motion.

2. The nut feeding mechanism according to claim 1, characterized in that: The feeding device (4) includes the staggered mechanism (42), and the staggered mechanism (42) is fixedly arranged on the workbench (1) through the support base (41). The staggered mechanism (42) includes a staggered cylinder (421) fixedly arranged on the top of the support base (41), and the staggered cylinder (421) is horizontally arranged. An pushing material sliding block (422) is slidably connected to the top of the staggered cylinder (421). The pushing material sliding block (422) is fixedly connected to the piston rod of the staggered cylinder (421). The piston rod of the staggered cylinder (421) can drive the pushing material sliding block (422) to move left and right. A material seat (423) is fixedly arranged on the top of the pushing material sliding block (422). An open-top material groove (4231) is arranged on one side of the material seat (423) corresponding to the linear feeder (31). The nut (8) can be placed in the material groove (4231). Limiting stoppers (424) are fixedly arranged on the top of the support base (41). The limiting stoppers (424) are arranged left and right corresponding to the linear feeder (31) of the feeding device (4). The end of the limiting stopper (424) corresponds to one side of the material seat (423) with the material groove (4231).

3. The nut feeding mechanism according to claim 1, characterized in that: The taking device (5) comprises a pneumatic finger (51) fixedly connected to the sliding table of the second linear module (22) through a connecting seat (52), and the pneumatic finger (51) is provided with two clamping jaws (511) capable of being opened and closed, and the two clamping jaws (511) are symmetrically arranged and provided with a clamping groove corresponding to the outer circumferential surface of the nut (8) on the symmetry plane.

4. The nut feeding mechanism according to claim 3, characterized in that: The sliding table of the second linear module (22) is provided with a position sensor (53) corresponding to the clamping jaw (511).

5. The nut feeding mechanism according to claim 1, wherein: The positioning carrier (7) comprises a carrier seat composed of a top plate (72) and a bottom plate (71) arranged in parallel from top to bottom, and the top plate (72) and the bottom plate (71) are fixedly connected together through vertically arranged stand columns (73); the bottom plate (71) is fixedly installed on the sliding table of the third linear module (6); the top of the top plate (72) is provided with a positioning sleeve for placing the nut (8), and the positioning sleeve is composed of a plurality of first positioning sleeves (74) and a plurality of second positioning sleeves (75).

6. The nut feeding mechanism according to claim 5, wherein: The first positioning sleeve (74) comprises a first limiting seat (741) in a "convex" structure, and the top of the first limiting seat (741) is provided with a positioning groove (742) in communication front and back, and the nut (8) can be placed in the positioning groove (742) with a clearance fit; the depth of the positioning groove (742) is less than the height of the nut (8), and the bottom center of the positioning groove (742) is fixed by a vertically arranged positioning column (743).

7. The nut feeding mechanism according to claim 5, wherein: The second positioning sleeve (75) comprises a second limiting seat (751) and an ejector cylinder (753) corresponding to the second limiting seat (751) from top to bottom; the second limiting seat (751) is fixedly arranged on the top plate (72), and the top center of the second limiting seat (751) is provided with a cavity (7511) for placing the nut (8) and in communication from top to bottom, and the cavity (7511) is provided with a ejector pin (754) in sliding fit therefrom top to bottom; the ejector cylinder (753) is vertically fixed below the bottom of the top plate (72) through a fixing seat (752), and the cylinder piston rod (7531) of the ejector cylinder (753) is vertically upward, and the top of the cylinder piston rod (7531) penetrates the top plate (72) and is fixedly connected with the bottom of the ejector pin (754) arranged in the cavity (7511).

8. The nut feeding mechanism according to claim 5, wherein: The top of the top plate (72) has a vertically arranged limiting column (76) on one side, and a plurality of limiting columns (76) are arranged front and back along the length direction of the top plate (72).

9. The nut feeding mechanism according to claim 1, wherein: The feeding device (4) has two groups, which are symmetrically arranged left and right, and each group of the feeding device (4) corresponds to a group of vibration discs (3), which are connected through linear feeders (31), and the two groups of vibration discs (3) are arranged front and back.

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