Auxiliary structure for positioning and correcting tray

Abstract

The utility model provides an auxiliary structure for positioning and correcting a tray, which is used for correcting the tray deviated in the width direction in the process of lowering the tray by a fork arm assembly, and is characterized by comprising two first positioning components which are symmetrically arranged, and a tray unloading placing area is formed between the two first positioning components; the four first positioning components are symmetrically arranged at the four corners of the AGV frame; the four second positioning components are matched to form a tray forking and placing area; the position of the tray in the width direction is automatically adjusted, so that the tray can accurately fall into a tray unloading and placing area when being unloaded and placed, and the position of the tray is automatically corrected; when the tray is forked and placed on the AGV, the tray can be accurately placed in the tray forking and placing area, and automatic correction of the position of the tray is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics robots, in particular to a tray positioning and correcting auxiliary structure. Background Art

[0002] In an automated logistics system, an automatic guided vehicle (AGV), as an important handling device, is widely used for the goods handling tasks in places such as warehouses and factories. The AGV is usually equipped with a fork arm mechanism for picking up and placing the goods on a tray from the ground or a shelf. However, in the actual operation process, due to various factors such as the movement of the fork arm, the uneven ground, and the manufacturing error of the tray itself, the tray often has a position deviation during the process of picking up and unloading the goods, which affects the picking and placing accuracy.

[0003] Therefore, it is necessary to provide a tray positioning and correcting auxiliary structure to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a tray positioning and correcting auxiliary structure. Under the action of gravity, the guiding pieces of two first positioning members guide the tray to slide into the correct tray unloading placement area arranged between the two first positioning members, so as to realize the automatic correction of the tray position.

[0005] A tray positioning and correcting auxiliary structure provided by the utility model is used to correct the tray that deviates in the width direction during the process of lowering the tray by a fork arm assembly, and includes:

[0006] Two symmetrically arranged first positioning members, and a tray unloading placement area is formed between the two first positioning members. At the same time, the shortest distance between the bottoms of the two first positioning members is greater than the width of the tray;

[0007] Wherein, the first positioning member includes a bottom plate and at least one guiding piece located directly above the bottom plate, and the guiding piece forms an inwardly inclined slope surface to guide the wide edge of the tray to slide down along the slope surface during the process of lowering the tray, so that the tray accurately falls into the tray unloading placement area;

[0008] Four first positioning members symmetrically arranged at the four corners of the AGV vehicle frame; the four second positioning members cooperate to form a tray picking and placing area; the shortest distance between two second positioning members on the same horizontal line is greater than the width of the tray;

[0009] Wherein, the second positioning member includes: a mounting piece and a guiding block located on the mounting piece;

[0010] The guiding block is provided with an inwardly inclined guiding slope for guiding the wide edge of the tray to slide down along the guiding slope when the fork arm picks up the tray and places it on the AGV vehicle frame, so that the tray accurately falls into the tray picking and placing area.

[0011] Preferably, the bottom plate is strip-shaped, and positioning holes are provided on the bottom plate for fixing the bottom plate to the ground in cooperation with bolts.

[0012] Preferably, the guide piece and the bottom plate are integrally formed, and the bottom edge of the guide piece is connected to the inner edge of the bottom plate.

[0013] Preferably, a support member is fixed between the top surface of the bottom plate and the back surface of the guide piece for supporting the guide piece.

[0014] Preferably, the support member is of a triangular structure, with one side fittingly connected to the back surface of the guide piece and the other side fittingly connected to the top surface of the bottom plate.

[0015] Preferably, each guide piece is provided with two support members, and the two support members are respectively located on both sides of the guide piece.

[0016] Preferably, three guide pieces are provided on each bottom plate, and the three guide pieces are evenly distributed on the bottom plate.

[0017] Preferably, the second positioning member further includes a height adjustment plate for increasing the height of the guide block;

[0018] The height adjustment plate is arranged on the AGV vehicle frame; the mounting piece is detachably connected to the height adjustment plate.

[0019] Preferably, it further includes: four positioning blocks respectively adapted to the four guide blocks; the four positioning blocks are respectively arranged at the four corners of the tray; the four positioning blocks can be respectively clamped with the corresponding guide blocks.

[0020] Compared with the related art, a tray positioning and correction auxiliary structure provided by the present utility model has the following beneficial effects:

[0021] The utility model ensures that the tray can be accurately placed by arranging two symmetrically arranged first positioning members, forming a tray unloading and placing area between them, and the shortest distance between the bottoms of the two first positioning members being exactly equal to the width of the tray. Each first positioning member consists of a bottom plate and at least one guiding piece. The guiding piece is located directly above the bottom plate and forms an inwardly inclined slope. During operation, the auxiliary structure is placed under the fork arm assembly to ensure that the tray unloading and placing area between the two first positioning members corresponds to the tray picking position of the fork arm assembly. When the fork arm assembly lowers the tray above the auxiliary structure, the wide side of the tray first contacts the slope of the guiding piece. Due to the inwardly inclined slope formed by the guiding piece, the tray will automatically slide downward along the slope under the action of gravity. At the same time, since the shortest distance between the two first positioning members is equal to the width of the tray, the tray will be restricted by the two first positioning members on both sides during the sliding process, thereby automatically adjusting its position in the width direction. After automatic correction, the tray will finally accurately fall into the tray unloading and placing area and closely fit with the bottom plate of the first positioning member;

[0022] Four second positioning members are arranged on the AGV vehicle frame at the four corners to form a tray grasping and placing area. When the fork arm picks up the tray and places it on the AGV vehicle frame, the offset part on the tray will contact the guiding block on the mounting plate. There is an inwardly inclined guiding slope on the guiding block. The wide side of the tray first contacts the guiding slope of the guiding block. Due to the inwardly inclined guiding slope, the tray will be limited by the four guiding blocks during the descending process, so that the tray will automatically adjust its position in the width direction and finally accurately fall into the tray picking and placing area and closely fit with the mounting plate of the second positioning member. Description of the Drawings

[0023] Figure 1 Schematic diagram of the state of the tray, AGV vehicle frame and fork arm assembly of the present utility model;

[0024] Figure 2 Schematic diagram of lowering the tray of the present utility model;

[0025] Figure 3 Schematic diagram of the specific structure on the AGV vehicle frame of the present utility model;

[0026] Figure 4 Schematic diagram of the first perspective structure of the first positioning member of the present utility model;

[0027] Figure 5 Schematic diagram of the second perspective structure of the first positioning member of the present utility model;

[0028] Figure 6 Exploded structure diagram of the second positioning member of the present utility model;

[0029] Figure 7 Structural schematic diagram of one embodiment of the present utility model;

[0030] Figure 8 Structural schematic diagram of another embodiment of the present utility model.

[0031] Reference numerals in the figure: 1, pallet; 2, fork arm assembly; 3, pallet unloading and placement area; 4, first positioning member; 41, bottom plate; 42, guiding piece; 43, slope; 44, positioning hole; 45, support member; 5, AGV frame; 6, second positioning member; 61, mounting plate; 62, guiding block; 63, guiding slope; 64, height adjusting plate; 65, positioning block; 7, pallet picking and placing area. Detailed implementation manners

[0032] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present utility model provides a pallet positioning and correction assisting structure for correcting the pallet 1 whose width direction deviates during the process of lowering the pallet 1 by the fork arm assembly 2.

[0034] In the overall layout, two first positioning members 4 with a symmetrical design are adopted. A pallet unloading and placement area 3 is naturally formed between the two first positioning members 4. The width of this area is greater than the width of the pallet 1. Specifically, the sum of the width of the pallet 1 and the tolerance is equal to the width of the pallet unloading and placement area 3, so as to ensure that the pallet 1 can be accurately placed into it, which not only simplifies the process of placing the pallet 1, but also greatly improves the accuracy of placement;

[0035] At the same time, four second positioning members 6 are also arranged on the AGV frame 5. The four are symmetrically arranged at the four corners of the AGV frame 5. The four second positioning members 6 form a pallet picking and placing area 7 on the AGV frame 5. When the fork arm assembly 2 picks up the pallet 1 and places it on the AGV frame 5, the pallet 1 can be stably placed. At the same time, it can also play a certain limiting role on the pallet 1 during the movement of the AGV cart, increasing the stability.

[0036] Specifically, the core components of the first positioning member 4 include a bottom plate 41 and a guiding piece 42. The bottom plate 41 is designed in a long strip shape, and its length and width are customized according to actual application requirements to ensure the stability of the structure. Positioning holes 44 are reserved on the bottom plate 41 to facilitate firmly fixing it to the ground through bolts. The guiding piece 42 is integrally formed with the bottom plate 41 and is evenly distributed on the bottom plate 41. The inwardly inclined slope 43 thereof is designed to guide the pallet 1 to automatically correct its position during the lowering process.

[0037] To further enhance the stability of the structure, two triangular supports 45 are configured for each guiding piece 42. One side of these supports 45 is attached to the back of the guiding piece 42, and the other side is tightly connected to the top surface of the bottom plate 41, forming a stable triangular support structure. This design not only enhances the load-bearing capacity of the guiding piece 42 but also ensures the stability of the tray 1 during the correction process.

[0038] Specifically, the second positioning member 6 includes: a mounting piece 61 and a guiding block 62 located on the mounting piece 61; the guiding block 62 is provided with an inwardly inclined guiding slope 63 for guiding the wide edge of the tray 1 to slide down along the guiding slope 63 when the fork arm assembly 2 of the AGV vehicle frame 5 forks and places the tray 1 on the AGV vehicle frame 5, so that the tray 1 accurately falls into the tray fork-taking and placing area 7.

[0039] Optionally, in specific use, the mounting piece 61 and the guiding block 62 can be integrally formed to enhance the overall support strength of the second positioning member 6.

[0040] In another embodiment, as Figure 6 shown, a height adjustment plate 64 can be added to increase the height of the guiding block 62 on the mounting piece 61 to make it more suitable for a higher tray 1;

[0041] In another embodiment, as Figure 7 shown, it further includes: four positioning blocks 65 that are respectively adapted to the four guiding blocks 32; the four positioning blocks 65 are respectively arranged at the four corners of the tray 1; the four positioning blocks 65 can be respectively clamped with the corresponding guiding blocks 62; four positioning blocks 65 can be arranged at the four corners of the tray 1. When the fork-taken tray 1 is placed on the AGV vehicle frame 5, further limiting and fixing effects can be achieved through the clamping of the positioning blocks 65 and the guiding blocks 62, preventing the tray 1 from detaching and falling due to environmental factors such as vibration during transportation.

[0042] During the operation of placing the tray, when the fork arm assembly 2 configured on the AGV vehicle frame 5 lowers the tray 1 above the auxiliary structure, the wide side of the tray 1 will first contact the slope 43 of the guiding piece 42. Under the action of gravity, the tray 1 will automatically slide downward along the slope 43. At the same time, due to the limiting effect of the two first positioning members 4 on both sides, the tray 1 will automatically adjust its position in the width direction during the sliding process and finally accurately fall into the tray unloading and placing area 3 and closely fit with the bottom plate 41. The whole process does not require manual intervention, greatly improving the work efficiency and safety.

[0043] In the operation of picking up the tray, when the fork arm assembly 2 configured on the AGV vehicle frame 5 lifts the tray 1 and places it on the AGV vehicle frame 5, the wide side of the tray 1 will contact the guiding slope 63 of the guiding block 62. The guiding slope 63 is inclined inward. During the descent of the tray 1, it will be limited by the four guiding blocks 62, so as to automatically adjust its position in the width direction. Finally, the tray 1 will accurately fall into the tray picking and placing area 7 and closely fit with the mounting plate 61 of the second positioning member 6. The whole process does not require manual intervention, greatly improving the work efficiency and safety.

[0044] In other embodiments, such as Figure 8 , to avoid occupying too much space, several guiding pins can also be installed on the ground to form the unloading and placing area 3. When the tray 1 is placed on the unloading and placing area 3, the bottom of the tray 1 abuts against the guiding pins, which also plays a role in limiting and correcting the tray 1.

[0045] The working principle of a vehicle frame tray 1 with a positioning and correcting function provided by the present utility model is as follows: During operation, place the auxiliary structure under the fork arm assembly 2 to ensure that the tray unloading and placing area 3 between the two first positioning members 4 corresponds to the tray 1 picking position of the fork arm assembly 2. When the fork arm assembly 2 lowers the tray 1 above the auxiliary structure, the wide side of the tray 1 first contacts the slope 43 of the guiding piece 42. Since the guiding piece 42 forms an inwardly inclined slope 43, the tray 1 will automatically slide downward along the slope 43 under the action of gravity. At the same time, since the shortest distance between the two first positioning members 4 is equal to the width of the tray 1, the tray 1 will be restricted by the two first positioning members 4 on both sides during the sliding process, so as to automatically adjust its position in the width direction. After automatic correction, the tray 1 will finally accurately fall into the tray unloading and placing area 3 and closely fit with the bottom plate 41 of the first positioning member 4. Four second positioning members 6 are arranged at the four corners on the AGV vehicle frame 5 to form a tray grasping and placing area 7. When the fork arm assembly 2 picks up the tray 1 and places it on the AGV vehicle frame 5, the offset part on the tray 1 will contact the guiding block 62 on the mounting plate 61. There is an inwardly inclined guiding slope 63 on the guiding block 62. The wide side of the tray 1 first contacts the guiding slope 63 of the guiding block 62. Since the guiding slope 63 is inclined inward, the tray 1 will be limited by the four guiding blocks 62 during the descent, so as to automatically adjust its position in the width direction. Finally, the tray 1 will accurately fall into the tray picking and placing area 7 and closely fit with the mounting plate 61 of the second positioning member 6.

[0046] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0047] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An auxiliary structure for pallet positioning and correction, which is used to correct the pallet (1) with deviation in the width direction during the process of the fork arm assembly (2) picking up and lowering the pallet (1), and is characterized in that Including: Two first positioning members (4) symmetrically arranged on the ground, and a tray unloading and placing area (3) is formed between the two first positioning members (4). At the same time, the shortest distance between the bottoms of the two first positioning members (4) is greater than the width of the tray (1); Wherein, the first positioning member (4) includes a bottom plate (41) and at least one guiding piece (42) located directly above the bottom plate (41), and the guiding piece (42) forms an inwardly inclined slope surface (43) to guide the wide edge of the tray (1) to slide down along the slope surface (43) during the lowering process of the tray (1), so that the tray (1) accurately falls into the tray unloading and placing area (3); Four second positioning members (6) symmetrically arranged at the four corners of the AGV vehicle frame (5); the four second positioning members (6) cooperate to form a tray fork-lifting and placing area (7); the shortest distance between two of the second positioning members (6) on a horizontal line is greater than the width of the tray (1); Wherein, the second positioning member (6) includes: a mounting piece (61) and a guiding block (62) located on the mounting piece (61); the guiding block (62) is provided with an inwardly inclined guiding slope (63) for guiding the wide edge of the tray (1) to slide down along the guiding slope (63) when the fork arm assembly (2) forks and places the tray (1) on the AGV vehicle frame (5), so that the tray (1) accurately falls into the tray fork-lifting and placing area (7).

2. The auxiliary structure for tray positioning and correction according to claim 1, wherein The bottom plate (41) is strip-shaped, and positioning holes (44) are provided on the bottom plate (41) for fixing the bottom plate (41) to the ground by cooperating with bolts.

3. The auxiliary structure for pallet positioning and correction according to claim 1, wherein, The guiding piece (42) and the bottom plate (41) are integrally formed, and the bottom edge of the guiding piece (42) is connected to the inner edge of the bottom plate (41).

4. The auxiliary structure for pallet positioning and correction according to claim 3, characterized in that, A support member (45) is fixed between the top surface of the bottom plate (41) and the back surface of the guiding piece (42) for supporting the guiding piece (42).

5. An auxiliary structure for pallet positioning and correction according to claim 4, characterized in that, The support member (45) is of a triangular structure, with one side fittingly connected to the back surface of the guiding piece (42) and the other side fittingly connected to the top surface of the bottom plate (41).

6. The auxiliary structure for pallet positioning and correction according to claim 4, wherein Each guiding piece (42) is provided with two support members (45), and the two support members (45) are respectively located on both sides of the guiding piece (42).

7. An auxiliary structure for tray positioning and correction according to claim 1, characterized in that, Three guiding pieces (42) are provided on each bottom plate (41), and the three guiding pieces (42) are evenly distributed on the bottom plate (41).

8. An auxiliary structure for pallet positioning and correction according to claim 1, characterized in that, The second positioning member (6) further includes a height adjusting plate (64) for increasing the height of the guiding block (62); The height adjusting plate (64) is arranged on the AGV vehicle frame (5); the mounting piece (61) is detachably connected to the height adjusting plate (64).

9. The auxiliary structure for pallet positioning and correction according to claim 1, characterized in that, It further includes: four positioning blocks (65) respectively adapted to the four guiding blocks (62); the four positioning blocks (65) are respectively arranged at the four corners of the tray (1); the four positioning blocks can be respectively clamped with the corresponding guiding blocks (62).

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