Feeding device

Abstract

A feeding device relates to the technical field of feeding and comprises a guide rail which is fixed in a working area. A workpiece is placed on the workpiece conveying mechanism, and the workpiece conveying mechanism moves to a working area through the guide rail; and the positioning mechanism is arranged on the side edge of the workpiece conveying mechanism and is used for positioning the workpiece. The workpiece conveying mechanism is suitable for conveying various types of workpieces, the workpieces are borne on the workpiece conveying mechanism, the workpieces are conveyed to the working area from the waiting area and withdrawn from the working area through the guide rails, operation difficulty and labor intensity are reduced, the workpiece clamping function and the workpiece conveying function are integrated on the workpiece conveying mechanism at the same time, and the workpiece conveying efficiency is improved. According to the feeding device, the occupied area of the feeding device is reduced, workpieces are positioned through the positioning mechanisms, the feeding precision of the workpieces is guaranteed, the number of the positioning mechanisms can be increased or decreased in the feeding device according to the actual workpiece condition and the production condition, and the distribution positions of the positioning mechanisms can also be changed.

Description

Technical Field

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

[0002] With the continuous improvement of the automation level of the automobile welding line, the production efficiency is gradually increasing, and the demand for improving the feeding speed and quantity in the production process is also increasing day by day. Since industrial products, such as metal profiles, large parts, large materials, etc., are heavy in their own weight, external mechanisms need to be used to assist in feeding to reduce the labor intensity of workers and improve work efficiency.

[0003] At present, in the industry, the feeding method for large workpieces mostly adopts the slide table feeding type. For example, the Chinese patent document with the publication number CN218695274U discloses a slide table feeding type welding production line. The operator places the material on the slide table feeding mechanism, and at the same time, the feeding robot feeds materials in the welding area. After the feeding is completed, the slide table feeding mechanism slides to the welding fixture platform. After the feeding mechanism slides in place, the welding robot welds the products on the welding fixture platform. After welding is completed, the slide table feeding mechanism returns to the feeding position, and at the same time, the feeding robot at the next station takes away the processed materials. The operator continues to feed materials at the feeding position, and at the same time, the feeding robot continues to feed materials in the welding area. This process is repeated in this way. This process has the following disadvantages:

[0004] 1. The slide table equipment and the fixture platform occupy a large area. Considering the sliding path of the slide table, it will undoubtedly occupy more space in the workshop. This scheme is very difficult to implement under the working conditions of small sites and small spaces.

[0005] 2. The feeding efficiency is low. The slide table can only place one workpiece, and it needs to be fed frequently, with low efficiency and high labor intensity.

[0006] 3. The cost is relatively high. In addition to the need to purchase slide table equipment, a fixture platform also needs to be manufactured.

[0007] 4. The maintenance cost is relatively high. Under the working conditions of long hours and high beats, both the slide table equipment and the fixture platform need to be regularly inspected and maintained, which is both labor-consuming and time-consuming. Summary of the Utility Model

[0008] The purpose of the utility model is to provide a feeding device, and the utility model solves the problems of large floor area and low feeding efficiency of the existing feeding device.

[0009] The utility model provides the following solutions:

[0010] The utility model describes a feeding device, including:

[0011] A guide rail, fixed in the working area;

[0012] A workpiece conveying mechanism, on which a workpiece is placed, and the workpiece conveying mechanism moves to the working area through the guide rail;

[0013] A positioning mechanism, arranged in the four horizontal directions of the workpiece conveying mechanism, and positioning the workpiece in the four horizontal directions.

[0014] Preferably, the positioning mechanism includes a first positioning mechanism, a second positioning mechanism, a third positioning mechanism and a fourth positioning mechanism;

[0015] The first positioning mechanism and the third positioning mechanism are arranged on both sides of the workpiece conveying mechanism along the first direction, and cooperate with each other to position both sides of the workpiece in the first direction;

[0016] The second positioning mechanism and the fourth positioning mechanism are arranged on both sides of the workpiece conveying mechanism along the second direction, and cooperate with each other to position both sides of the workpiece in the second direction.

[0017] Preferably, the first positioning mechanism and the third positioning mechanism have the same structure, and both include:

[0018] A first bottom plate, fixed on one side of the workpiece conveying mechanism in the first direction, and first stoppers are arranged on both sides of the first bottom plate in the second direction;

[0019] A first mounting plate, slidably mounted on the first bottom plate along the first direction; two first limit blocks are slidably arranged at intervals on both sides of the first mounting plate in the second direction; the first mounting plate is blocked by the first stopper to limit the sliding of the first limit block;

[0020] A first linear cylinder, the telescopic rod of the first linear cylinder is connected to the first mounting plate;

[0021] At least two first brackets, arranged on both sides of the first mounting plate in the second direction;

[0022] A first aligning rod, detachably connected to the first bracket, and the first aligning rod positions one side of the workpiece in the first direction.

[0023] Preferably, a first slide rail is arranged at the upper end of the first bottom plate along the first direction, and a first slider for sliding on the first slide rail is arranged at the lower end of the first mounting plate.

[0024] Preferably, the second positioning mechanism includes:

[0025] A second bottom plate, fixed on the first side of the workpiece conveying mechanism in the second direction;

[0026] Second brackets, at least two, are arranged on both sides of the second base plate in the first direction;

[0027] Second workpiece aligning rod, detachably connected to the second bracket, and the second workpiece aligning rod positions the workpiece on the first side in the second direction;

[0028] First rotary clamping cylinders, at least two, are arranged on both sides of the second base plate in the first direction, and the rotary ends of the first rotary clamping cylinders are located below the workpiece conveying mechanism;

[0029] Rotary stopper, connected to the rotary end of the first rotary clamping cylinder, and the rotary stopper rotates and rises to fix the bottom of the workpiece conveying mechanism.

[0030] Preferably, the fourth positioning mechanism includes:

[0031] Third base plate, fixed to the second side of the workpiece conveying mechanism in the second direction, and the second side is the inlet and outlet side of the workpiece conveying mechanism; second stoppers are arranged on both sides of the third base plate in the first direction;

[0032] Third mounting plate, slidably mounted along the second direction at the first end of the third base plate; two second limit blocks are slidably arranged at intervals on both sides of the third mounting plate in the first direction; the third mounting plate is slidably limited by the second stopper blocking the second limit block;

[0033] Second linear cylinder, fixed to the second end of the third base plate, and the telescopic rod of the second linear cylinder is connected to the first end of the third mounting plate;

[0034] Second rotary clamping cylinder, the rotary end of the second rotary clamping cylinder is connected to a rotary shaft; the rotary shaft is rotatably connected to the third mounting plate, and the axial direction of the rotary shaft is the same as the second direction;

[0035] Third bracket, connected to the rotary shaft;

[0036] Third workpiece aligning rod, detachably connected to the third bracket, and the third workpiece aligning rod positions the workpiece on the second side in the second direction.

[0037] Preferably, a second slide rail is arranged along the second direction at the upper end of the third base plate, and a second slider for sliding on the second slide rail is arranged at the lower end of the third mounting plate.

[0038] Preferably, the workpiece conveying mechanism includes:

[0039] Frame, with casters installed at the bottom, and the casters slide in the guide rail;

[0040] Support frame, fixed to the side of the vehicle frame;

[0041] Support sheets, several of them, stacked on the support frame at uniform intervals to support the workpiece.

[0042] Preferably, a number of stud pins are evenly spaced and layer - arranged at corresponding positions of the support sheets on the first side of the support frame, and the stud pins are rotatably connected to the support frame;

[0043] The support sheet includes a support block, a connecting block, a drooping block and a limiting rod; the support block and the drooping block are connected to both ends of the connecting block, the weight of the drooping block is greater than that of the support block, the connecting block is connected to the stud pin, and the rotation of the stud pin makes the drooping block contact or separate from the drooping block of the upper layer;

[0044] The support block is used to support the workpiece, and the support surface of the support block is arranged at an angle with the connecting block;

[0045] The first end of the limiting rod is connected to the drooping block, and the second end extends towards the second side of the support frame to limit the rotation of the stud pin.

[0046] Preferably, the angle between the support surface of the lowermost support sheet and the connecting block is greater than the angle between the support surface of the upper - layer support sheet and the connecting block.

[0047] The utility model has the following advantages compared with the prior art:

[0048] 1. For the loading device provided by the utility model, the workpiece conveying mechanism carries the workpiece, and the workpiece is conveyed to the working area through the guide rail. The functions of clamping the workpiece and conveying the workpiece are concentrated on the workpiece conveying mechanism at the same time, reducing the floor area of the loading device.

[0049] 2. For the loading device provided by the utility model, multiple layers of support sheets are arranged on the workpiece conveying mechanism, which can support multiple workpieces and convey multiple workpieces at one time, greatly improving the production efficiency and reducing the labor intensity. Brief Description of the Drawings

[0050] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following - described drawings are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0051] Figure 1 It is a schematic structural diagram of the loading device according to the embodiment of the utility model;

[0052] Figure 2 The top view of the loading device according to the embodiment of the present utility model;

[0053] Figure 3 The structural schematic diagram of the first positioning mechanism and the third positioning mechanism in the loading device according to the embodiment of the present utility model;

[0054] Figure 4 The structural schematic diagram of the second positioning mechanism in the loading device according to the embodiment of the present utility model;

[0055] Figure 5 The structural schematic diagram of the fourth positioning mechanism in the loading device according to the embodiment of the present utility model;

[0056] Figure 6 The structural schematic diagram of the workpiece conveying mechanism in the loading device according to the embodiment of the present utility model;

[0057] Figure 7 The mechanism schematic diagram of the support piece in the loading device according to the embodiment of the present utility model.

[0058] Wherein: 1 - guide rail;

[0059] 2 - workpiece conveying mechanism; 21 - vehicle frame; 22 - casters; 23 - support frame; 231 - pin; 24 - support piece; 241 - support block; 242 - connecting block; 243 - hanging block; 244 - limiting rod;

[0060] 3 - positioning mechanism; 31 - first positioning mechanism; 311 - first bottom plate; 3111 - first slide rail; 321 - first stop block; 313 - first mounting plate; 3131 - first slider; 314 - first limit block; 315 - first linear cylinder; 316 - first bracket; 317 - first aligning rod; 32 - second positioning mechanism; 321 - second bottom plate; 322 - second bracket; 323 - second aligning rod; 324 - first rotary cylinder; 325 - rotary stop block; 33 - third positioning mechanism; 34 - fourth positioning mechanism; 341 - third bottom plate; 3411 - second slide rail; 342 - second stop block; 343 - third mounting plate; 345 - second linear cylinder; 346 - second rotary clamping cylinder; 347 - rotating shaft;  348 - third bracket; 349 - third aligning rod;

[0061] 4 - robot. Detailed implementation manners

[0062] To make the objectives, technical solutions and advantages of this application more clear, the following will further describe this application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part rather than all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0063] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0064] It should be understood that the term "and / or" used herein is only a kind of association relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0065] It should be understood that although terms such as first, second, and third may be used in the embodiments of this application for description, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of this application, the first can also be called the second, and similarly, the second can also be called the first.

[0066] Depending on the context, the words "if", "when" as used herein can be interpreted as "when...", "when...", "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0067] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or device including the said element.

[0068] It should be particularly noted that symbols and / or numbers existing in the specification, if not marked in the accompanying drawing description, are not drawing reference numerals.

[0069] See Figures 1-7 Figures 1-7 An automatic feeding device provided by an embodiment of the present application can be used for transporting various types of workpieces, including: a guide rail 1 fixed in a working area; a workpiece conveying mechanism 2 on which a workpiece is placed, and the workpiece conveying mechanism 2 moves to the working area through the guide rail 1; and a positioning mechanism 3 arranged on the side of the workpiece conveying mechanism 2 for positioning the workpiece.

[0070]

[0070] This embodiment mainly targets large workpieces represented by the middle floor of an automobile. The guide rail 1 is fixed on the ground of the working area. The workpiece conveying mechanism 2 enters and exits the working area through the guide rail 1 from a waiting area. The starting end of the guide rail 1 is provided with a Y-shaped opening to ensure that the workpiece conveying mechanism 2 enters the guide rail more accurately and quickly during the feeding process. The workpiece conveying mechanism 2 carries the workpiece, and the workpiece conveying mechanism 2 is directly pushed into the working area, reducing the operation difficulty and labor intensity. The functions of clamping the workpiece and conveying the workpiece are both concentrated on the workpiece conveying mechanism 2, reducing the floor area of the feeding device.

[0071]

[0071] The positioning mechanism 3 positions the workpiece, ensuring the feeding accuracy of the workpiece. According to the actual workpiece situation and production situation in the device, the positioning mechanism can be increased or decreased, and the distribution position of the positioning mechanism can also be changed.

[0072]

[0072] Further, the positioning mechanism 3 includes a first positioning mechanism 31, a second positioning mechanism 32, a third positioning mechanism 33, and a fourth positioning mechanism 34; the first positioning mechanism 31 and the third positioning mechanism 33 are arranged on both sides of the workpiece conveying mechanism 2 along a first direction, and cooperate with each other to clamp and position both sides of the workpiece in the first direction; the second positioning mechanism 32 and the fourth positioning mechanism 34 are arranged on both sides of the workpiece conveying mechanism 2 along a second direction, and cooperate with each other to position both sides of the workpiece in the second direction.

[0073]

[0073] In this embodiment, the workpiece is positioned in four horizontal directions. Referring to Figure 2 Figure 2 As shown, the first direction is the X-axis direction, and the second direction is the Y-axis direction. The first positioning mechanism 31 is located in the negative X-axis direction, the third positioning mechanism 33 is located in the positive X-axis direction, and the first positioning mechanism 31 and the third positioning mechanism 33 are on the same straight line; the second positioning mechanism 32 is located in the negative Y-axis direction, the fourth positioning mechanism 34 is located in the positive Y-axis direction, and the second positioning mechanism 32 and the fourth positioning mechanism 34 are on the same straight line. The four positioning mechanisms position the four directions of the working area. Among them, the positive Y-axis direction is the entry and exit direction of the workpiece conveying mechanism 2.

[0074] Further, the first positioning mechanism 31 and the third positioning mechanism 33 have the same structure, both including: a first bottom plate 311 fixed to one side of the workpiece conveying mechanism 2 in the first direction, and first stoppers 312 are provided on both sides of the first bottom plate 311 in the second direction; a first mounting plate 313 slidably mounted on the first bottom plate 311 in the first direction; two first limiting blocks 314 are slidably and spaced apart on both sides of the first mounting plate 313 in the second direction; the first mounting plate 313 is slidably limited by blocking the first limiting blocks 314 with the first stoppers 312; a first linear cylinder 315, the telescopic rod of the first linear cylinder 315 is connected to the first mounting plate 313; a first bracket 316 provided on the first mounting plate 313; a first aligning rod 317 detachably connected to the first bracket 316, and the first aligning rod 317 positions one side of the workpiece in the first direction.

[0075] The first linear cylinder 315 of the first positioning mechanism 31 is arranged outside the negative X-axis direction, and the first linear cylinder 315 of the third positioning mechanism 33 is arranged outside the positive X-axis direction. The fixed end of the first linear cylinder 315 is fixed to the ground, and the telescopic end is fixed to the middle of the first mounting plate 313. The first linear cylinder 315 provides power. When positioning the workpiece, the first linear cylinder 315 drives the first mounting plate 313 and the first bracket 316 and the first aligning rod 317 provided on the first mounting plate 313 to slide along the X-axis direction, so that the first aligning rod 317 is flush with the edges of the workpiece in the negative X-axis direction and the positive X-axis direction, thereby clamping and positioning the workpiece in the X-axis direction. Optionally, the first aligning rod 317 and the first bracket 316 are of a split design, and the connection method is bolt connection to facilitate fine-tuning the position of the first aligning rod 317 by adding or reducing gaskets to ensure that the position of the first aligning rod 317 is appropriate.

[0076] When the first mounting plate 313 slides on the first bottom plate 311 along the X-axis direction, the first mounting plate 313 is slidably limited by blocking the first limiting blocks 314 with the first stoppers 312. The distance between the two first limiting blocks 314 is the movable distance of the first stopper 312, that is, the working distance of the first positioning mechanism 31 and the third positioning mechanism 33. Further, both of the two first limiting blocks 314 are slidably arranged on the side of the first mounting plate 313. When dealing with different workpieces, the first limiting blocks 314 can be adjusted to control the limiting distance to ensure that the first aligning rod 317 can still maintain a consistent extending distance in the case of different workpieces.

[0077] In this embodiment, two first brackets 316 are provided on both sides of the first mounting plate 313 in the Y-axis direction to level the edges of the workpiece at two positions, ensuring the positioning accuracy.

[0078] Further, a first slide rail 3111 is arranged along a first direction at the upper end of the first base plate 311, and a first slider 3131 that slides on the first slide rail 3111 is arranged at the lower end of the first mounting plate 313. Through the above arrangement, the first mounting plate 313 is slidably connected to the first base plate 311 in the X-axis direction.

[0079] Further, the second positioning mechanism 32 includes: a second base plate 321, fixed to the first side of the workpiece conveying mechanism 2 in a second direction; a second support 322, arranged on the second base plate 321; a second workpiece aligning rod 323, detachably connected to the second support 322, and the second workpiece aligning rod 323 positions the workpiece on the first side in the second direction; a first rotary clamping cylinder 324, arranged on the side of the second base plate 321 in the first direction, and the rotary end of the first rotary clamping cylinder 324 is located below the workpiece conveying mechanism 2; a rotary stopper 325, connected to the rotary end of the first rotary clamping cylinder 324, and the rotary stopper 325 rotates upward to fix the bottom of the workpiece conveying mechanism 2.

[0080] The second positioning mechanism 32 is fixed to the ground in the negative Y-axis direction and is immovable. After the workpiece conveying mechanism 2 enters the working area from the positive Y-axis direction, the second workpiece aligning rod 323 is flush with the edge of the workpiece in the negative Y-axis direction to position the workpiece in the negative Y-axis direction. When it is necessary to fix the workpiece conveying mechanism, the first rotary clamping cylinder 324 starts to work, and its rotary end drives the rotary stopper 325 to rotate upward, so that the rotary stopper 325 contacts the bottom of the workpiece conveying mechanism 2, thereby fixing the workpiece conveying mechanism 2. Preferably, two first rotary clamping cylinders are arranged on both sides of the second base plate 321 in the X-axis direction.

[0081] Similarly, the second workpiece aligning rod 323 and the second support 322 are of a split design, and the connection method is bolt connection to facilitate fine adjustment of the position of the second workpiece aligning rod 323 by adding or reducing gaskets to ensure that the position of the second workpiece aligning rod 323 is appropriate. Two second supports 322 are arranged on both sides of the second base plate 321 in the X-axis direction to level the edge of the workpiece at two positions, ensuring the positioning accuracy.

[0082] Further, the fourth positioning mechanism 34 includes: a third base plate 341 fixed to the second side of the workpiece conveying mechanism 2 in the second direction, where the second side is the inlet and outlet side of the workpiece conveying mechanism 2; second stoppers 342 are provided on both sides of the third base plate 341 in the first direction; a third mounting plate 343 is slidably mounted on the first end of the third base plate 341; two second limiting blocks 344 are slidably and spaced apart on both sides of the third mounting plate 343 in the first direction; the third mounting plate 343 is slidably limited by the second stopper 342 blocking the second limiting block 344; a second linear cylinder 345 is fixed to the second end of the third base plate 341, and the telescopic rod of the second linear cylinder 345 is connected to the third mounting plate 343; a second rotary clamping cylinder 346, the rotary end of the second rotary clamping cylinder 346 is connected to a rotary shaft 347; the rotary shaft 347 is rotatably connected to the third mounting plate 343; a third bracket 348 is connected to the rotary shaft 347; a third workpiece aligning rod 349 is detachably connected to the third bracket 348, and the third workpiece aligning rod 349 positions the workpiece on the second side in the second direction.

[0083] The fourth positioning mechanism 34 is located in the positive Y-axis direction. The second linear cylinder 345 provides power. When positioning the workpiece is required, the second linear cylinder 345 drives the third mounting plate 343 and the third bracket 348 and the third workpiece aligning rod 349 provided on the third mounting plate 343 to slide along the Y-axis direction, so that the third workpiece aligning rod 349 is flush with the edge of the workpiece in the positive Y-axis direction, thereby clamping and positioning the workpiece in the positive Y-axis direction. In this embodiment, the third workpiece aligning rod 349 and the third bracket 348 are of a split design, and the connection method is bolt connection to facilitate fine-tuning the position of the third workpiece aligning rod 349 by adding or reducing gaskets to ensure that the position of the third workpiece aligning rod 349 is appropriate.

[0084] When the third mounting plate 343 slides, the second stopper 342 blocks the second limiting block 344 to limit the sliding of the third mounting plate 343. The distance between the two second limiting blocks 344 is the movable distance of the second stopper 342, that is, the working distance of the fourth positioning mechanism 34. Further, both of the two second limiting blocks 344 are slidably provided on the side of the third mounting plate 343, so that when dealing with different workpieces, the second limiting blocks 344 can be adjusted to control the limiting distance.

[0085] Since the positive Y-axis direction is the inlet and outlet side of the workpiece conveying mechanism 2, in order to avoid interference between the third support 348 and the third workpiece-aligning rod 349 with the workpiece conveying mechanism 2, the third support 348 is set as a flipable structure. When the workpiece conveying structure 2 needs to enter and exit, the third support 348 and the third workpiece-aligning rod 349 flip down to be flush with the ground, creating space for the entry and exit of the workpiece conveying structure 2; when workpiece positioning is required, the third support 348 and the third workpiece-aligning rod 349 flip up, making the third workpiece-aligning rod 349 flush with the edge of the workpiece in the positive Y-axis direction, thereby positioning the workpiece in the positive Y-axis direction.

[0086] The flipping of the third support 348 and the third workpiece-aligning rod 349 is achieved through the following principle: the rotating end of the second rotating clamping cylinder 346 drives the rotating shaft 347 to rotate on the third mounting plate 343, driving the third support 348 and the third workpiece-aligning rod 349 connected to the rotating shaft to flip.

[0087] Further, a second sliding rail 3411 is arranged along the second direction at the upper end of the third bottom plate 341, and the lower end of the third mounting plate 343 is provided with a second slider (not shown in the figure) that slides on the second sliding rail 3411. Through the above settings, the third mounting plate 333 is slidably connected to the third bottom plate 341 along the Y-axis direction.

[0088] Further, the workpiece conveying mechanism 2 includes: a vehicle frame 21, bottom-mounted casters 22 that slide within the guide rail 1; a support frame 23 fixed to the side of the vehicle frame 21; and a plurality of support sheets 24 that are evenly spaced and stacked on the support frame 23 to support the workpiece.

[0089] Refer to Figure 6 As shown, the vehicle frame 21 includes a bottom frame, vertical frames, and a cross frame. The vertical frames are arranged at the four corner ends of the bottom frame, and one cross frame is connected to the upper ends of the two vertical frames on one side. Each side forms a hollow structure to prevent interference when the positioning mechanism 3 positions the edge of the workpiece. The support frame 23 is arranged at the four corners of the vehicle frame 21 to support the four corner ends of the workpiece, ensuring stable support for the workpiece. Each support frame 23 is provided with multiple layers of support sheets 24, which can support and convey multiple workpieces at one time, greatly improving production efficiency and reducing labor intensity.

[0090] In this embodiment, the robot 4's gripper is equipped with a suction cup. After evacuating the suction cup, the workpiece is sucked up. The robot slowly lifts the workpiece and then clamps it after moving to a safe position. According to the movement range that each axis of the robot can reach, the size of the workpiece assembly on the middle bottom plate, and the size of each support on the gripper, it is verified that the workpiece conveying mechanism can store up to 12 workpieces. When the single-piece loading quantity is increased from 1 piece to 12 pieces, the single-piece loading time is reduced from 56 s to 5 s.

[0091] Furthermore, a plurality of pins 231 are evenly spaced at corresponding positions of the support sheet 24 on the first side of the support frame 23, and the pins 231 are rotatably connected to the support frame 23; the support sheet 24 includes a support block 241, a connecting block 242, a pendant block 243 and a limiting rod 244; the support block 241 and the pendant block 243 are connected at both ends of the connecting block 242, the weight of the pendant block 243 is greater than the weight of the support block 241, and the connecting block 242 is connected to the pins 231, and the pins 231 rotate to make the pendant block 243 contact or separate from the pendant block 243 of the upper layer; the support block 241 is used to support the workpiece, and the supporting surface of the support block 241 is set at an angle to the connecting block 242; the first end of the limiting rod 244 is connected to the pendant block 243, and the second end extends toward the second side of the support frame 23 to limit the rotation of the pin 231.

[0092] In the absence of workpieces, since the weight of the drooping block 243 is greater than the weight of the support block 241, the drooping block 243 droops and the support block 241 tilts upward. After the workpieces are stacked, the support block 241 drives the pin 231 to rotate, causing the drooping block 243 to tilt and contact the drooping block 243 of the upper layer. The pin 231 continues to rotate to lift the drooping block 243 of the upper layer, causing the support block 241 of the upper layer to fall, increasing the gap between it and the support block of the next layer, allowing the workpieces to be stacked. This process is repeated until all workpieces are stacked, achieving a multi-layer workpiece stacking function. Since the support surface of the support block 241 is set at an angle to the connecting block 242, after the support block 23 rotates, its support surface is exactly in a horizontal position, providing horizontal support for the workpieces.

[0093] When the pin 231 rotates, it drives the limiting rod 244 to approach the support frame 23 until the limiting rod 244 contacts the support frame 23 , and the support frame 23 blocks the limiting rod 244 , thereby limiting the rotation of the pin 231 .

[0094] Furthermore, the angle between the support surface of the bottom support sheet 24 and the connection block 242 is greater than the angle between the support surface of the upper support sheet 24 and the connection block 242 .

[0095] In the absence of workpieces, this arrangement allows for a larger gap between the support block 241 of the lowest layer and the connecting block of the support block 241 of the upper layer, so that the workpieces of the lowest layer can be directly stacked.

[0096] The working process of the loading device in this embodiment is as follows: Stack multiple layers of workpieces on the workpiece conveying mechanism 2, push the workpiece conveying mechanism 2 into the guide rail 1 to slide, and make the workpiece conveying mechanism 2 enter the working area. At this time, start the first rotary clamping cylinder 324 to drive the rotary stopper 325 to rotate upward to fix the bottom of the workpiece conveying mechanism 2, and the first linear cylinder 315 drives the first positioning mechanism 31 and the third positioning mechanism 33 to move along the X-axis direction to clamp and position the workpiece in the X-axis direction; the second rotary clamping cylinder 346 drives the third support 348 and the third workpiece aligning rod 349 to turn upward, and the second linear cylinder 345 drives the fourth positioning mechanism to move along the Y-axis direction to clamp and position the workpiece in the Y-axis direction. Operate the robot 4 to grab the workpieces positioned in the working area layer by layer.

[0097] After the loading is completed, start the first linear cylinder 315 to drive the first positioning mechanism 31 and the third positioning mechanism 33 to move away from the workpiece along the X-axis direction; the first rotary clamping cylinder 324 drives the rotary stopper 325 to rotate downward to leave the bottom of the workpiece conveying mechanism 2; the second linear cylinder 345 drives the fourth positioning mechanism to move away from the workpiece along the Y-axis direction, and the second rotary clamping cylinder 346 drives the third support 348 and the third workpiece aligning rod 349 to turn downward, so that the third support 348 and the third workpiece aligning rod 349 are parallel to the ground, and the workpiece conveying mechanism 2 leaves the working area through the guide rail 1.

[0098] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0099] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A feeding device, characterized in that, Including: A guide rail (1), the guide rail (1) being fixed in the working area; A workpiece conveying mechanism (2), a workpiece being placed on the conveying mechanism (2), and the workpiece conveying mechanism (2) moving to the working area through the guide rail (1); A positioning mechanism (3), the positioning mechanism (3) being arranged on the side of the workpiece conveying mechanism (2) to position the workpiece.

2. The feeding device according to claim 1, characterized in that, The positioning mechanism (3) includes a first positioning mechanism (31), a second positioning mechanism (32), a third positioning mechanism (33) and a fourth positioning mechanism (34); The first positioning mechanism (31) and the third positioning mechanism (33) are arranged on both sides of the workpiece conveying mechanism (2) along a first direction, and cooperate with each other to position both sides of the workpiece in the first direction; The second positioning mechanism (32) and the fourth positioning mechanism (34) are arranged on both sides of the workpiece conveying mechanism (2) along a second direction, and cooperate with each other to position both sides of the workpiece in the second direction.

3. The feeding device according to claim 2, characterized in that, The first positioning mechanism (31) and the third positioning mechanism (33) have the same structure, and both include: A first bottom plate (311), fixed on one side of the workpiece conveying mechanism (2) in the first direction, and first stoppers (312) are arranged on both sides of the first bottom plate (311) in the second direction; A first mounting plate (313), slidably mounted on the first bottom plate (311) along the first direction; two first limit blocks (314) are slidably arranged at intervals on both sides of the first mounting plate (313) in the second direction; the first mounting plate (313) is blocked by the first stopper (312) to limit the sliding of the first limit block (314); A first linear cylinder (315), the telescopic rod of the first linear cylinder (315) being connected to the first mounting plate (313); A first bracket (316), arranged on the first mounting plate (313); A first aligning rod (317), detachably connected to the first bracket (316), and the first aligning rod (317) positions one side of the workpiece in the first direction.

4. The feeding device according to claim 3, characterized in that, A first slide rail (3111) extending along the first direction is arranged at the upper end of the first bottom plate (311), and a first slider (3131) for sliding on the first slide rail (3111) is arranged at the lower end of the first mounting plate (313).

5. The feeding device according to claim 3, characterized in that, The second positioning mechanism (32) includes: A second bottom plate (321), fixed on the first side of the workpiece conveying mechanism (2) in the second direction; A second bracket (322), arranged on the second bottom plate (321); A second aligning rod (323), detachably connected to the second bracket (322), and the second aligning rod (323) positions one side of the workpiece in the second direction; A first rotary clamping cylinder (324), arranged on the side of the second bottom plate (321) in the first direction, and the rotating end of the first rotary clamping cylinder (324) is located below the workpiece conveying mechanism (2); The rotating stopper (325) is connected to the rotating end of the first rotating clamping cylinder (324). The rotating stopper (325) rotates and rises to fix the bottom of the workpiece conveying mechanism (2).

6. The feeding device according to claim 5, characterized in that, The fourth positioning mechanism (34) includes: The third bottom plate (341) is fixed to the second side of the workpiece conveying mechanism (2) in the second direction, and the second side is the inlet and outlet side of the workpiece conveying mechanism (2); second stoppers (342) are provided on both sides of the third bottom plate (341) in the first direction; The third mounting plate (343) is slidably mounted on the first end of the third bottom plate (341) along the second direction; two second limiting blocks (344) are slidably and spaced apart on both sides of the third mounting plate (343) in the first direction; the third mounting plate (343) is slidably limited by the second stopper (342) blocking the second limiting block (344); The second linear cylinder (345) is fixed to the second end of the third bottom plate (341), and the telescopic rod of the second linear cylinder (345) is connected to the third mounting plate (343); The second rotating clamping cylinder (346), the rotating end of the second rotating clamping cylinder (346) is connected to the rotating shaft (347); the rotating shaft (347) is rotatably connected to the third mounting plate (343); The third bracket (348) is connected to the rotating shaft (347); The third workpiece aligning rod (349) is detachably connected to the third bracket (348), and the third workpiece aligning rod (349) positions the workpiece on the second side in the second direction.

7. The feeding device according to claim 6, characterized in that, A second slide rail (3411) is provided at the upper end of the third bottom plate (341) along the second direction, and a second slider for sliding on the second slide rail (3411) is provided at the lower end of the third mounting plate (343).

8. The feeding device according to claim 1, characterized in that, The workpiece conveying mechanism (2) includes: The vehicle frame (21) has casters (22) installed at the bottom, and the casters (22) slide within the guide rail (1); The support frame (23) is fixed to the side of the vehicle frame (21); A plurality of support sheets (24) are evenly spaced and stacked on the support frame (23) to support the workpiece.

9. The feeding device according to claim 8, wherein A plurality of stud pins (231) are evenly spaced and layer - arranged at corresponding positions of the support sheet (24) on the first side of the support frame (23), and the stud pins (231) are rotatably connected to the support frame (23); The support sheet (24) includes a support block (241), a connecting block (242), a hanging block (243), and a limiting rod (244); the support block (241) and the hanging block (243) are connected to both ends of the connecting block (242), the weight of the hanging block (243) is greater than the weight of the support block (241), the connecting block (242) is connected to the stud pin (231), and the stud pin (231) rotates to make the hanging block (243) contact or separate from the hanging block (243) of the upper layer; The support block (241) is used to support the workpiece, and the support surface of the support block (241) is arranged at an angle with the connection block (242); The first end of the limit rod (244) is connected to the drooping block (243), and the second end extends toward the second side of the support frame (23) to limit the rotation of the pin (231).

10. The feeding device according to claim 9, wherein, The angle between the support surface of the lowermost support piece (24) and the connection block (242) is greater than the angle between the support surface of the upper support piece (24) and the connection block (242).

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