Tray table for AGV automatic carrying tray system
By placing the sensor's sensor's sensor inside the sensing box and using the cooperation of the pallet and the stopper, indirect sensing of the photoelectric sensor is achieved, which solves the problem that the photoelectric sensor is susceptible to dust, significantly reduces the probability of failure and avoids sensor damage.
Patent Information
- Application Number
- CN202422337383.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In existing AGV automated handling systems, photoelectric sensors are susceptible to dust deposits and dust spilled from pallets, resulting in sensing failures and sensor damage.
Place the sensor's sensor inside the sensing box, and use the tray to contact the stopper first, push the sensing tongue plate behind the stopper into the sensing box, realizing indirect sensing of the photoelectric sensor and avoiding dust directly affecting the sensor.
It significantly reduces the probability of sensing failure, avoids damage to the photoelectric sensor, and ensures the stable operation of the AGV automated handling system.
Smart Images
Figure CN223015535U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of AGV automated handling, and in particular relates to a pallet table for an AGV automated handling pallet system. Background Art
[0002] With the rapid development of modern science and technology and the continuous increase in labor costs, automated logistics technology has also developed rapidly in fields such as manufacturing, third-party logistics, and e-commerce. Among them, the automatic guided vehicle (AGV), known as a mobile robot, has been widely used in the manufacturing industry in recent years, providing a very good solution for realizing the automation and labor-saving of storage and transportation, and achieving standardized and just-in-time workshop logistics distribution in production control;
[0003] In practical applications, when the pallet is sent into the handling warehouse by the AGV, to determine whether it has advanced in place, it is necessary to use a photoelectric sensor to sense the pallet. When the pallet triggers the photoelectric sensor, the AGV is instructed to stop advancing and lower the pallet. The existing structure is to erect a bracket at the rear end of the bracket, and fix the photoelectric sensor on the bracket. The photoelectric sensor faces the pallet directly. After long-term use, dust deposits on the photoelectric sensor, or the dust scattered on the pallet covers it, resulting in the photoelectric sensor being unable to normally sense the pallet. The AGV continues to advance with the pallet and presses against the photoelectric sensor, which may seriously damage the photoelectric sensor and interrupt the automation process. Summary of the Utility Model
[0004] The purpose of this application is to provide a pallet table for an AGV automated handling pallet system. In this application, the sensing head of the photoelectric sensor is placed inside the sensing box, which avoids the occurrence of dust deposition and dust scattered on the pallet, significantly reducing the probability of sensing failures. In addition, different from the traditional method of directly sensing the pallet by the photoelectric sensor, in this application, the pallet follows the AGV and first contacts the stop baffle, pushing the sensing tongue plate behind the stop baffle into the sensing box. The photoelectric sensor indirectly senses the instruction to trigger the stop of advancement. Even if there is a failure to sense, the pallet that continues to advance will only collide with the stop baffle, completely isolating the pallet from the photoelectric sensor and avoiding the occurrence of sensor damage.
[0005] To solve the technical problems of easy dust deposition and vulnerability of photoelectric sensors in the prior art, the present application provides a pallet table for an AGV automated handling pallet system, which includes a pallet and two sets of brackets. The two sets of brackets are symmetrically arranged, and both sides of the pallet are respectively placed on the two sets of brackets; a detection device is provided at the rear end of each set of brackets, and the detection device includes a photoelectric sensor, a sensing box, and a stop baffle; the stop baffle includes a sensing tongue plate and a return spring. The sensing tongue plate is horizontally arranged on the back of the stop baffle and inserted into the sensing box, and the return spring is clamped between the sensing box and the stop baffle; the photoelectric sensor is installed in the sensing box, and the sensing head of the photoelectric sensor is placed inside the sensing box for sensing the sensing tongue plate.
[0006] Further, for the pallet table for an AGV automated handling pallet system provided by the present application, in order to improve the smoothness of the reciprocation of the stop baffle inside and outside the sensing box, an insertion plate is further provided on the back of the stop baffle. The insertion plate is parallel to the sensing tongue plate, and the insertion plate is movably inserted into the sensing box; the insertion plate and the sensing tongue plate can ensure that the plate surface of the stop baffle is parallel to the side wall of the sensing box, and the repeated use is smooth.
[0007] Further, for the pallet table for an AGV automated handling pallet system provided by the present application, in order to prevent the stop baffle from popping out under the action of the return spring when the pallet is lifted instantaneously, a limit bolt and a nut are additionally provided in the present application. The nut is welded to the back of the stop baffle, and the limit bolt sequentially passes through the sensing box and the return spring and is tightened on the nut. The return spring is compression-assembled between the sensing box and the stop baffle; when the pallet is taken away instantaneously, the return spring pushes the stop baffle along the direction of the limit bolt, and the head of the limit bolt stops inside the sensing box, and the pushing action of the stop baffle is immediately terminated.
[0008] Further, for the pallet table for an AGV automated handling pallet system provided by the present application, the photoelectric sensor is inverted and fixed on the top of the sensing box, and the inverted photoelectric sensor is less likely to collect dust.
[0009] Compared with the prior art, the present application has the following advantages: on the one hand, the sensing head of the photoelectric sensor in the present application is placed inside the sensing box, avoiding the occurrence of dust deposition and dust scattering from the pallet, and significantly reducing the probability of sensing failures; on the other hand, different from the traditional way of directly sensing the pallet by the photoelectric sensor, in the present application, the pallet follows the AGV and first contacts the stop baffle, pushing the sensing tongue plate behind the stop baffle into the sensing box. The photoelectric sensor indirectly senses the sensing tongue plate and triggers the instruction to stop advancing. Even if the phenomenon of non-sensing occurs, the continuing advancing pallet will only collide with the stop baffle, and the pallet is completely separated from the photoelectric sensor, avoiding the occurrence of sensor damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 Schematic diagram of the pallet structure for an AGV automated handling pallet system of the present utility model;
[0011] Figure 2 Exploded view of the pallet structure for an AGV automated handling pallet system of the present utility model.
[0012] Wherein: 1. Pallet; 2. Bracket; 3. Photoelectric sensor; 4. Sensing box; 5. Stop baffle; 6. Sensing tongue plate; 7. Return spring; 8. Plug-in board; 9. Limit bolt; 10. Nut. Specific embodiments
[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0014] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and 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, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0015] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0016] The following will describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings, and further explain the technical effects that the present utility model can achieve.
[0017] As Figure 1 and Figure 2As shown in the figure, this embodiment provides a pallet table for an AGV automated handling pallet system, which includes a pallet 1 and two sets of brackets 2. The two sets of brackets 2 are symmetrically arranged, and both sides of the pallet 1 are respectively placed on the two sets of brackets 2; a set of detection devices is provided at the rear end of each set of brackets 2, and the detection device includes a photoelectric sensor 3, a sensing box 4 and a stop baffle 5; the stop baffle 5 includes a sensing tongue plate 6 and a return spring 7. The sensing tongue plate 6 is horizontally arranged on the back of the stop baffle 5 and inserted into the sensing box 4, and the return spring 7 is clamped between the sensing box 4 and the stop baffle 5; the photoelectric sensor 3 is installed on the sensing box 4, and the sensing head of the photoelectric sensor 3 is placed inside the sensing box 4 for sensing the sensing tongue plate 6. Considering that the inverted photoelectric sensor 3 is less likely to get dusty, in this embodiment, the photoelectric sensor 3 is inverted and fixed on the top of the sensing box 4;
[0018] To improve the smoothness of the stop baffle 5 reciprocating inside and outside the sensing box 4, a plug-in board 8 is further provided on the back of the stop baffle 5. The plug-in board 8 is parallel to the sensing tongue plate 6, and the plug-in board 8 is movably inserted into the sensing box 4. The plug-in board 8 and the sensing tongue plate 6 can ensure that the plate surface of the stop baffle 5 is parallel to the side wall of the sensing box 4, and the repeated use is smooth;
[0019] To prevent the stop baffle 5 from popping out under the action of the return spring 7 at the moment when the pallet 1 is lifted, this embodiment also adds a limit bolt 9 and a nut 10. The nut 10 is welded to the back of the stop baffle 5. The limit bolt 9 sequentially passes through the sensing box 4 and the return spring 7 and is tightened on the nut 10. The return spring 7 is compression-assembled between the sensing box 4 and the stop baffle 5. When the pallet 1 is taken away instantaneously, the return spring 7 pushes out the stop baffle 5 along the direction of the limit bolt 9, and the head of the limit bolt 9 stops inside the sensing box 4, and the pushing action of the stop baffle 5 is immediately terminated;
[0020] The working process and principle of the pallet table for the AGV automated handling pallet system provided in this embodiment are as follows: When the AGV transports the pallet 1 into the handling warehouse, as the AGV advances, the pallet 1 will first touch the stop baffle 5. At this time, the photoelectric sensor 3 does not obtain a signal. As the AGV further advances, the pallet 1 pushes the stop baffle 5, and the plug-in board 8 and the sensing tongue plate 6 installed on the back of the stop baffle 5 extend into the sensing box 4. At the same time, the limit bolt 9 extends into the sensing box 4, and the return spring 7 is continuously compressed until the sensing tongue plate 6 moves to directly below the photoelectric sensor 3 and is within the sensing range of the photoelectric sensor 3. At this time, the photoelectric sensor 3 commands the AGV to stop advancing, and the state of the pallet 1 is displayed in the handling warehouse. When the pallet 1 needs to be transported away, the AGV lifts the pallet 1, and the pallet 1 and the stop baffle 5 are separated from contact. At this time, under the action of the return spring 7, the stop baffle 5 is pushed out until the bolt head of the limit bolt 9 stops against the inner wall of the sensing box 4, and at the same time, the sensing tongue plate 6 is out of the sensing range of the photoelectric sensor 3, indicating that there is no pallet 1.
[0021] For those parts not detailed in the present utility model, they are all well-known technologies to those skilled in the art.
[0022] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in this technical field based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should fall within the protection scope determined by the claims.
Claims
1. A pallet table for an AGV automated pallet handling system, comprising a pallet (1), characterized in that: The apparatus further comprises two sets of brackets (2), the two sets of brackets (2) being symmetrically arranged, and the two sides of the tray (1) are respectively placed on the two sets of brackets (2); a detection device is arranged at the rear end of each set of brackets (2), the detection device comprising a photoelectric sensor (3), a sensing box (4) and a stop plate (5); the stop plate (5) comprises a sensing tongue plate (6) and a return spring (7); the sensing tongue plate (6) is transversely arranged on the back side of the stop plate (5) and inserted into the sensing box (4); the return spring (7) is clamped between the sensing box (4) and the stop plate (5); the photoelectric sensor (3) is installed on the sensing box (4), and the sensing head of the photoelectric sensor (3) is arranged inside the sensing box (4) for sensing the sensing tongue plate (6).
2. The pallet table for the AGV automated pallet handling system according to claim 1, characterized in that: A plug-in board (8) is also provided on the back of the stop plate (5), the plug-in board (8) is parallel to the sensing tongue plate (6), and the plug-in board (8) is movably plugged into the sensing box (4).
3. The pallet table for the AGV automated pallet handling system according to claim 1, characterized in that: It also includes a limiting bolt (9) and a nut (10), wherein the nut (10) is welded to the back of the stop plate (5), the limiting bolt (9) sequentially passes through the sensing box (4) and the return spring (7) and is tightened on the nut (10), and the return spring (7) is compressed and assembled between the sensing box (4) and the stop plate (5).
4. The pallet table for the AGV automated pallet handling system according to claim 1, characterized in that: The photoelectric sensor (3) is inverted and fixed on the top of the sensing box (4).