Rack positioning assembly and automatic feeding device

Abstract

The utility model relates to the field of vehicle equipment manufacturing, and particularly discloses a material rack positioning assembly and an automatic feeding device.The material rack positioning assembly comprises guide rail assemblies and a positioning assembly, the two guide rail assemblies are arranged in the first direction in a spaced mode, and each guide rail assembly comprises a first guide rail and a second guide rail which are connected and arranged in the second direction; the ends, deviating from the corresponding first guide rails, of the second guide rails in one guide rail assembly are obliquely arranged in the direction deviating from the second guide rails in the other guide rail assembly, so that the two second guide rails are in a horn shape, and a material frame can be guided in conveniently. The positioning assembly comprises a limiting block, a damper, a clamping assembly and a positioning piece, the positioning piece is arranged between the two guide rail assemblies in the first direction, the positioning piece is located at the end, away from the second guide rail, of the first guide rail in the second direction, and the limiting block, the damper and the clamping assembly are all arranged on the positioning piece and used for fixing the material frame. By means of the structure, the material frame can be guided and fixed, and the positioning stability of the material frame is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle equipment manufacturing field, concretely relates to a material rack positioning assembly and automatic feeding device. BACKGROUND

[0002] With the improvement of living standards, people's demand for cars is getting bigger and bigger, and the stability of car performance is getting higher and higher, and the car company adapts to the increasing demand for sales and stability, and more and more automatic equipment is put into production line.

[0003] However, the current automatic feeding device mostly has problems such as poor stability of material rack positioning and difficult material rack pushing. INVENTION CONTENTS

[0004] The present application provides a kind of material rack positioning assembly and automatic feeding device, the material rack positioning assembly can guide and fix material rack, improve the stability of material rack positioning.

[0005] To solve the above technical problems, one technical scheme adopted by the present application is to provide a material rack positioning assembly, the material rack positioning assembly includes guide rail assembly and positioning assembly, two guide rail assemblies are spaced apart along a first direction, the guide rail assembly includes a first guide rail and a second guide rail connected along a second direction, the second guide rail in one guide rail assembly is inclined away from the end of the corresponding first guide rail towards the second guide rail in the other guide rail assembly; the positioning assembly includes a limit block, a damper, a clamping assembly and a positioning member, along the first direction, the positioning member is arranged between the two guide rail assemblies, along the second direction, the positioning member is located at the end of the first guide rail away from the second guide rail, the limit block, the damper and the clamping assembly are all arranged on the positioning member; wherein the first direction is perpendicular to the second direction, and the second direction is parallel to the extension direction of the first guide rail.

[0006] Among them, the positioning member includes a positioning pile and a base, and a plurality of positioning piles are arranged on the base; a plurality of limit blocks are arranged on the corresponding positioning piles, and the damper and the clamping assembly are arranged on different positioning piles.

[0007] Among them, the limit block and the damper are arranged on the positioning pile along the first direction.

[0008] Among them, along the second direction, the length of the damper is greater than the size of the limit block.

[0009] Among them, the clamping assembly includes a cylinder and a gripper, the gripper is pivotally connected with the cylinder, and the cylinder can drive the gripper to approach or move away from the limit block after being ventilated.

[0010] The positioning pile comprises a body and a bottom plate, the body is welded on the bottom plate, and the bottom plate is fixedly connected with the base.

[0011] At least part of the body is integrally arranged with the corresponding bottom plate.

[0012] The application further comprises a second technical solution, and provides an automatic feeding device comprising the above-mentioned rack positioning assembly and rack.

[0013] The rack comprises a bottom disc and a frame, the frame is arranged on the bottom disc, the height of the bottom disc is the same as the height of the guide rail assembly along the third direction, the bottom disc is provided with a moving roller, and the bottom disc moves along the second guide rail towards the first guide rail until abutting against the limiting block through the moving roller.

[0014] Before the rack abuts against the limiting block, the gripper is located at an initial position, when the rack abuts against the limiting block, the gripper can rotate from the initial position to a preset position and clamp the rack in cooperation with the limiting block, and the preset position is a position opposite to the limiting block after the gripper rotates.

[0015] The application has the beneficial effects that: different from the prior art, the application provides a rack positioning assembly, the rack positioning assembly comprises guide rail assemblies and a positioning assembly, two guide rail assemblies are arranged at intervals along a first direction, the guide rail assembly comprises a first guide rail and a second guide rail arranged in connection along a second direction, one end of the second guide rail in the guide rail assembly away from the corresponding first guide rail is arranged to be inclined away from the second guide rail in the other guide rail assembly, so that the two second guide rails are in a horn shape. The positioning assembly comprises a limiting block, a damper, a clamping assembly and a positioning piece, along the first direction, the positioning piece is arranged between the two guide rail assemblies, along the second direction, the positioning piece is located at one end of the first guide rail away from the second guide rail, and the limiting block, the damper and the clamping assembly are all arranged on the positioning piece and used for positioning and limiting the rack. The application sets the two second guide rails in a horn shape to facilitate the rack to be guided in, and sets the limiting block, the damper and the clamping assembly to fix the rack and improve the stability of the rack positioning. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 is a structural schematic diagram of an embodiment of a rack positioning assembly of the present application, the rack positioning assembly being used for positioning and fixing a rack, comprising a positioning assembly, the positioning assembly comprising a limiting block, a damper, a clamping assembly and a positioning member;

[0018] Figure 2 is Figure 1 is a structural schematic diagram of a limiting block, a damper and a positioning member in the embodiment;

[0019] Figure 3 is Figure 1 is a structural schematic diagram of a positioning assembly positioning and fixing a rack in the embodiment;

[0020] Figure 4 is a structural schematic diagram of an embodiment of an automatic feeding device of the present application.

[0021] Corresponding reference signs in the drawings indicate corresponding parts throughout the several views. The reference signs are only used to facilitate understanding of the present application, and should not be construed as limiting the present application. 1, guide rail assembly; 11, first guide rail; 12, second guide rail; 2, positioning assembly; 21, limiting block; 22, damper; 23, clamping assembly; 231, air cylinder; 232, gripper; 24, positioning member; 241, positioning pile; 2411, body; 2412, bottom plate; 242, base; 243, reinforcing plate; 20, rack; 201, bottom disc; 202, frame; 203, moving roller; 10, rack positioning assembly; 100, automatic feeding device. DETAILED DESCRIPTION

[0022] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive of other embodiments, or alternative or alternative embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the present application, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1 to 3 , Figure 1 is a structural schematic diagram of an embodiment of the rack positioning assembly provided by the present application, Figure 2 is Figure 1 a structural schematic diagram of the limiting block, damper and positioning member in Figure 3 is Figure 1 a structural schematic diagram of the positioning assembly positioning and fixing the rack. In one aspect of the present application, a rack positioning assembly 10 for fixing a rack 20 is provided, the rack positioning assembly 10 comprising a guide rail assembly 1 and a positioning assembly 2, two guide rail assemblies 1 are arranged at intervals along a first direction D1, the guide rail assembly 1 comprises a first guide rail 11 and a second guide rail 12 arranged in connection along a second direction D2, the second guide rail 12 in one guide rail assembly 1 is arranged obliquely away from the end of the corresponding first guide rail 11, facing away from the second guide rail 12 in the other guide rail assembly 1, so that the two second guide rails 12 are in a horn shape. The positioning assembly 2 comprises a limiting block 21, a damper 22, a clamping assembly 23 and a positioning member 24, along the first direction D1, the positioning member 24 is arranged between the two groups of guide rail assemblies 1, along the second direction D2, the positioning member 24 is located at the end of the first guide rail 11 away from the second guide rail 12, the limiting block 21, the damper 22 and the clamping assembly 23 are all arranged on the positioning member 24, for positioning and limiting the rack 20. By arranging the two second guide rails 12 in a horn shape, the rack 20 is facilitated to be guided in, by arranging the limiting block 21, the damper 22 and the clamping assembly 23, the rack 20 can be fixed, and the stability of the positioning of the rack 20 is improved. It should be noted that the first direction D1 is perpendicular to the second direction D2, and the second direction D2 is parallel to the extension direction of the first guide rail 11.

[0027] Specifically, the two first guide rails 11 are arranged in parallel and at intervals to guide and limit the movement of the rack 20. The two second guide rails 12 are arranged at intervals and outwardly in a trumpet shape, which expands the guiding range. When in use, the rack 20 can be pushed into the trumpet-shaped second guide rail 12 and then moved along the first guide rail 11, which improves the convenience. In addition, since one end of the second guide rail 12 is arranged obliquely, the stress concentration phenomenon can be improved or avoided, the impact of the rack 20 can be borne, and the stability is improved. The limiting block 21 is used to limit the movement of the rack 20 and plays a positioning role, that is, the rack 20 can be moved along the first guide rail 11 to abut against the limiting block 21 and then stopped. The damper 22 can play a buffering role to improve or avoid the deformation of the rack 20 due to impact. The clamping assembly 23 is used to clamp and fix the rack 20 to improve the stability of the positioning of the rack 20. The positioning member 24 is used to support and fix the limiting block 21, the damper 22, and the clamping assembly 23, and further improve the stability.

[0028] In use, the rack 20 can be touched to the second guide rail 12, then moved along the second guide rail 12 to the first guide rail 11, and then moved along the first guide rail 11 to the position of the positioning member 24. The rack 20 is positioned by the limiting block 21, then clamped and fixed by the clamping assembly 23, and then the parts on the rack 20 are automatically grabbed by the robot. Through the above structure, the problems that the rack 20 shakes to cause the parts to interfere with the rack 20 and the robot system to collide and alarm can be improved or avoided. In addition, the clamping and fixing of the rack 20 by the clamping assembly 23 reduces the positional deviation of the rack 20 and the parts on the rack 20, which can reduce the failure rate of the robot in automatically grabbing the parts.

[0029] In an embodiment of the present application, in combination with Figure 1 and Figure 3 As shown in the drawings, the positioning member 24 includes a positioning pile 241 and a base 242. A plurality of positioning piles 241 are arranged on the base 242, and a plurality of limiting blocks 21 are arranged on the corresponding positioning piles 241 to uniformly position the rack 20 and improve the stability. The damper 22 and the clamping assembly 23 are arranged on different positioning piles 241, which can reduce the required accommodation space of the positioning pile 241, reduce the volume of the positioning pile 241, and reduce the cost.

[0030] Specifically, the plurality of positioning stakes 241 can be uniformly spaced on the base 242 along the first direction D1, so that the limiting blocks 21 can uniformly limit the movement of the racks 20, improving or avoiding the problem of uneven force on the racks 20 in the first direction D1, thereby reducing the positional deviation of the racks 20 and improving stability. In a specific embodiment, the number of positioning stakes 241 is three, and three limiting blocks 21 are respectively located on the corresponding positioning stakes 241, one of which is provided with a clamping assembly 23, and one of which is provided with a damper 22 to improve stability.

[0031] In an embodiment of the present application, as shown in Figure 2 , the limiting blocks 21 and the dampers 22 are arranged on the positioning stakes 241 along the first direction D1.

[0032] Specifically, the limiting blocks 21 and the dampers 22 are arranged side by side on the same positioning stake 241, which can improve or avoid the conflict between the dampers 22 and the limiting blocks 21 in position or function. In a specific embodiment, the limiting block 21 is arranged on one side of the end of the positioning stake 241, and a gap is provided on the other side of the end, and the damper 22 is connected and fixed with the end of the positioning stake 241 to fill the gap, thereby forming the side-by-side arrangement of the damper 22 and the limiting block 21.

[0033] Further, along the second direction D2, the length of the damper 22 is greater than the size of the limiting block 21, that is, the length H of the damper 22 protruding relative to the positioning member 24 is greater than the size h of the limiting block 21, so that when the rack 20 is pushed into along the first guide rail 11, it can first hit the damper 22, then slow down through the damper 22, and then hit the limiting block 21, thereby realizing the buffering effect of the damper 22. In a specific embodiment, the damper 22 can include a spring structure, and when the rack 20 hits the damper 22, the damper 22 is gradually compressed, so that the rack 20 gradually slows down after being subjected to the reverse elastic force, thereby playing a buffering role and improving or avoiding the deformation caused by the impact of the rack 20. It should be noted that when the rack 20 is pushed in, the rack 20 has a certain weight due to the parts stacked on it, and the first guide rail 11 is provided on both sides of the advancing direction of the rack 20, so the moving direction will not change due to the resistance of the damper 22.

[0034] In an embodiment of the present application, as shown in Figure 1 and Figure 3 , the clamping assembly 23 includes a gas cylinder 231 and a gripper 232, the gripper 232 is pivotally connected with the gas cylinder 231, and the gas cylinder 231 can drive the gripper 232 to approach or move away from the limiting block 21 after being supplied with gas, thereby clamping or releasing the rack 20.

[0035] Specifically, the clamping assembly 23 and the limiting block 21 are arranged on the positioning stake 241, and the material rack 20 can be clamped and fixed by cooperation of the clamping assembly 23 and the limiting block 21. In an embodiment, the limiting block 21 is located above the air cylinder 231, and the gripper 232 is connected to one end of the air cylinder 231 and can rotate relative to the air cylinder 231. The gripper 232 has an initial position (not shown in the figure) and a preset position (as shown in the figure), when the gripper 232 is located at the initial position, the gripper 232 is not in the same plane as the limiting block 21, and the clamping assembly 23 is in an open state, when the gripper 232 is located at the preset position, the gripper 232 is located in the same plane as the limiting block 21 and is oppositely arranged, and the clamping assembly 23 is in a closed state. The preset position is the position of the gripper 232 relative to the limiting block 21 along the first direction D1, at this time, the gripper 232 can be driven by the air cylinder 231 to approach the limiting block 21 to clamp the material rack 20. The initial position can be the position of the gripper 232 when the angle between the gripper 232 and the first direction D1 is 0°, of course, according to the actual situation on site, the initial position can also be adjusted accordingly to improve the applicability. Figure 1

[0036] In an embodiment of the present application, the positioning stake 241 includes a body 2411 and a bottom plate 2412, the body 2411 is welded on the bottom plate 2412, and the bottom plate 2412 is fixedly connected with the base 242 to improve the stability.

[0037] Specifically, since the limiting block 21 is a block structure of a rectangular parallelepiped, in order to facilitate the installation and fixation of the limiting block 21, the body 2411 can be a plate structure. However, if the plate-shaped body 2411 is directly connected with the base 242, the stability will be reduced, therefore, the bottom plate 2412 is arranged to connect the body 2411 and the base 242, and the connection area between the body 2411 and the base 242 is increased to improve the stability.

[0038] Further, in order to improve or avoid the bending deformation of the body 2411 when it is impacted by the material rack 20, the positioning member 24 further includes a reinforcing plate rib 243, which connects the body 2411 and the bottom plate 2412 to improve the strength of the body 2411. Through the above structure, the situation that the limiting block 21 rebounds and impacts the material rack 20 due to the bending deformation of the body 2411 after the material rack 20 collides with the limiting block 21 can be improved or avoided.

[0039] Further, in order to facilitate the installation and fixation of the clamping assembly 23, the body 2411 and the bottom plate 2412 of the positioning stake 241 corresponding to the clamping assembly 23 are integrally arranged. In an embodiment, the positioning stake 241 can have an S-shaped structure, the bottom part is the bottom plate 2412 connected with the base 242, the top part is provided with the limiting block 21, and the clamping assembly 23 is arranged between the top part and the bottom part.

[0040] Please continue to combine Figure 4 ​, Figure 4 is a structural schematic view of an embodiment of the automatic feeding device of the present application. In another aspect, the present application also provides an automatic feeding device 100, which comprises the above-mentioned rack positioning assembly 10 and the rack 20. The rack 20 can be moved along the guide rail assembly 1 from the end of the second guide rail 12 away from the first guide rail 11 to the end of the first guide rail 11 away from the second guide rail 12 and abut against the positioning member 24, and then the rack 20 is clamped by the clamping assembly 23.

[0041] Specifically, since the automatic feeding device 100 comprises the rack positioning assembly 10 described in the above-mentioned embodiment, it also has the beneficial effects of the rack positioning assembly 10 described above, which will not be repeated here.

[0042] Further, the rack 20 comprises a base plate 201 and a frame 202, the frame 202 is arranged on the base plate 201, the frame 202 can limit the position of the parts, and the base plate 201 can carry the parts, and the frame 202 and the base plate 201 cooperate to accommodate and position the parts. The height of the base plate 201 is the same as the height of the guide rail assembly 1 along the third direction D3, so as to facilitate the movement of the base plate 201 along the guide rail assembly 1. The base plate 201 is provided with moving rollers 203, which can reduce the force required to push the rack 20 and improve convenience by moving on the ground. The base plate 201 moves along the second guide rail 12 towards the first guide rail 11 by the moving rollers 203 until abutting against the limiting block 21, which is fast and efficient. It should be noted that the third direction D3 is perpendicular to the first direction D1 and the second direction D2, and the third direction D3 can be the opposite direction of gravity. In a specific embodiment, the distance between the two first guide rails 11 can be 20 mm larger than the size of the base plate 201, which can improve or avoid the situation that the rack 20 is stuck between the two first guide rails 11. Of course, this gap can also be 15 mm, 25 mm, 30 mm, etc., which is set according to the actual situation, and will not be repeated here.

[0043] The automatic feeding device 100 of the embodiment of the application, before the rack 20 abuts against the limiting block 21, the gripper 232 is located at the initial position, first pushes the rack 20 to the feeding opening by manual operation, and there is a probability of impacting the second guide rail 12 in the shape of a horn, the front end of the rack 20 is guided by the second guide rail 12, and the rack 20 can be easily pushed along the direction of the first guide rail 11 by manual operation, when the damper 22 is gradually compressed, the rack 20 gradually slows down after being subjected to the reverse elastic force, and stops after impacting the limiting block 21 in front, after the limiting block 21 contacts with the rack 20, the button is pressed by manual operation to ventilate the air cylinder 231, the gripper 232 can rotate from the initial position to the preset position and clamp the rack 20 in cooperation with the limiting block 21, so that the positioning and limiting of the rack 20 are completed, and the stability of the positioning of the rack 20 is improved. After the above steps are completed, the robot gripper 232 is guided by the vision system to complete the grabbing action. It should be noted that the air cylinder 231 and the gripper 232 in the clamping assembly 23 are market pieces and can be purchased, the size of the limiting block 21 can be 50mm*20mm, and the initial position and the preset position are described in the above embodiment, and will not be described here.

[0044] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined; the terms "parallel", "perpendicular" and the like also do not mean that the fittings must be absolutely parallel or perpendicular, but can form a certain angular deviation. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 commonly used when the product of the application is used, and are only for the convenience of describing the embodiments of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0045] It is to be understood that the terminology "a plurality" herein means "at least two", such as two, three, etc., unless specifically restricted otherwise. In addition, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to the listed steps or units, but can optionally further include additional steps or units not listed, or can optionally further include steps or units inherent to such process, method, product, or apparatus. The term "and / or", merely describes an associated relationship between associated objects, and means that there can be three relationships, for example, A and / or B, which means that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects.

[0046] The above description is merely an implementation of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A rack positioning assembly, comprising: Comprising: A guide rail assembly (1), two of said guide rail assemblies (1) are spaced apart along a first direction, said guide rail assembly (1) comprises a first guide rail (11) and a second guide rail (12) arranged in connection along a second direction, the second guide rail (12) in one of said guide rail assemblies (1) is inclined away from the end of the corresponding first guide rail (11) away from the second guide rail (12) in the other of said guide rail assemblies (1); A positioning assembly (2), said positioning assembly (2) comprises a limiting block (21), a damper (22), a clamping assembly (23) and a positioning member (24), along the first direction, said positioning member (24) is arranged between the two groups of said guide rail assemblies (1), along the second direction, said positioning member (24) is located at the end of said first guide rail (11) away from said second guide rail (12), said limiting block (21), said damper (22) and said clamping assembly (23) are all arranged on said positioning member (24); wherein, said first direction is perpendicular to said second direction, and said second direction is parallel to the extension direction of said first guide rail (11).

2. The rack positioning assembly according to claim 1, wherein: Said positioning member (24) comprises a positioning pile (241) and a base (242), a plurality of said positioning piles (241) are arranged on said base (242); A plurality of said limiting blocks (21) are respectively arranged on corresponding said positioning piles (241), and said damper (22) and said clamping assembly (23) are respectively arranged on different said positioning piles (241).

3. The rack positioning assembly according to claim 2, wherein: Said limiting block (21) and said damper (22) are arranged on said positioning pile (241) along said first direction.

4. The rack positioning assembly according to claim 3, wherein: Along said second direction, the length of said damper (22) is greater than the size of said limiting block (21).

5. The rack positioning assembly according to claim 1, wherein: Said clamping assembly (23) comprises a gas cylinder (231) and a gripper (232), said gripper (232) is pivotally connected with said gas cylinder (231), and said gas cylinder (231) can drive said gripper (232) to approach or move away from said limiting block (21) after being aerated.

6. The rack positioning assembly according to claim 5, wherein: Said positioning member (24) comprises a positioning pile (241) and a base (242), said positioning pile (241) comprises a body (2411) and a bottom plate (2412), said body (2411) is welded on said bottom plate (2412), and said bottom plate (2412) is fixedly connected with said base (242); Said positioning member (24) further comprises a reinforcing plate rib (243), said reinforcing plate rib (243) connects said body (2411) and said bottom plate (2412).

7. The rack positioning assembly according to claim 6, wherein: At least part of the body (2411) is integrally arranged with the corresponding bottom plate (2412).

8. An automatic feeding device, characterized in that, The automatic feeding device comprises the rack positioning assembly and the rack (20) according to any one of claims 1-7, the rack (20) is movable along the guide rail assembly (1) from one end of the second guide rail (12) away from the first guide rail (11) to one end of the first guide rail (11) away from the second guide rail (12) and abutting against the positioning member (24), and the clamping assembly (23) clamps and fixes the rack (20).

9. The automatic feeding device according to claim 8, characterized in that, The rack (20) comprises a base plate (201) and a frame (202), the frame (202) is arranged on the base plate (201), the height of the base plate (201) is the same as the height of the guide rail assembly (1) along a third direction, the base plate (201) is provided with a moving roller (203), and the base plate (201) moves along the second guide rail (12) towards the first guide rail (11) until abutting against the limiting block (21) through the moving roller (203); wherein the third direction is perpendicular to the first direction and the second direction.

10. The automatic feeding device according to claim 8, characterized in that, The clamping assembly (23) comprises a gripper (232), the gripper (232) is located at an initial position before the rack (20) abutting against the limiting block (21), the gripper (232) is rotatable from the initial position to a preset position and cooperates with the limiting block (21) to clamp the rack (20) when the rack (20) abutting against the limiting block (21), wherein the preset position is a position opposite to the limiting block (21) after the gripper (232) rotates.

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