Accurate positioning mechanism for AGV (Automatic Guided Vehicle) skip car

Abstract

The utility model discloses a precise positioning mechanism for an AGV (Automatic Guided Vehicle) skip car, and relates to the technical field of precise positioning of skip cars. Comprising thick guiding devices, jacking blocks and air cylinder check blocks, the middles of the two thick guiding devices are arranged in parallel, the two ends of each thick guiding device are of arc-shaped structures bent outwards, the jacking blocks are arranged below the four corners of each thick guiding device, the air cylinder check blocks are arranged below the middles of the thick guiding devices, and positioning pins are arranged on the jacking blocks at the opposite angles. The two-way warehousing device can realize two-way warehousing of the skip car, and is accurate and reliable in positioning and high in positioning precision.

Description

Technical Field

[0001] The utility model relates to the technical field of accurate positioning of a material vehicle, in particular to an AGV material vehicle accurate positioning mechanism. Background Art

[0002] With the continuous progress of industrial automation technology, automatic feeding equipment such as AGV and logistics carts have been increasingly used in warehousing logistics and workshops with high automation rates. In order to further improve automation, when materials are delivered to the workstation, they need to be grasped by robots for the next processing step. However, the stopping positioning accuracy of the AGV cart itself cannot meet the requirements of robot grasping. Therefore, additional devices are needed to correct the position of the material cart to make the docking accuracy higher so that the robot can directly take materials from the material cart.

[0003] At present, AGV material handling has been widely used in logistics warehousing and industrial workshops with a high degree of automation. In automobile assembly and body workshops, AGV transports materials placed in racks to robot workstations, and then the robots take the parts from the racks and put them online. There are more and more such applications, and how to accurately position the racks transported by AGVs and realize accurate grasping by robots requires different implementation methods for different applications.

[0004] The utility model provides a method for accurately positioning a material vehicle and can realize two-way storage, so that the layout is more flexible, the positioning accuracy is high and the reliability is good. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an AGV material vehicle precise positioning mechanism, which has bidirectional storage, accurate and reliable positioning and high positioning accuracy.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an AGV material cart precision positioning mechanism, including a coarse guide device, a lifting block and a cylinder stopper, the two coarse guide devices are arranged in parallel in the middle, the two ends of the coarse guide device are arc structures bent outward, lifting blocks are arranged below the four corners of the coarse guide device, a cylinder stopper is arranged below the middle of the coarse guide device, and positioning pins are arranged on the diagonal lifting blocks.

[0007] Preferably, the locating pin on the lifting block cooperates with the locating hole on the diagonal side of the AGV material transport trolley, and the cylinder stopper cooperates with the side stops on both sides of the middle part of the AGV material transport trolley.

[0008] The beneficial effects of the utility model: the utility model guides the material cart into the storage position by the rough guide device on the side, and then the cylinders on both sides limit the position of the material cart in the entry and exit directions through the blocks on the material cart. No matter the material cart enters the storage position from the left side or the right side, the entry and exit positions can be determined by the cylinders on the side. After the entry and exit positioning is completed, the four lifting cylinders at the bottom extend out. When lifting and positioning the material cart in the Z direction, the two positioning pins at the symmetrical angles cooperate with the positioning holes at the bottom of the material cart to perform precise positioning of the material cart in the XY directions, so that the positioning accuracy meets the requirements of robot grasping. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the state of the material-carrying vehicle of the utility model. DETAILED DESCRIPTION

[0012] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0013] Reference Figure 1-2 This specific embodiment adopts the following technical scheme: an AGV material cart precision positioning mechanism, including a coarse guide device 1, a lifting block 2 and a cylinder stopper 3. The two coarse guide devices 1 are arranged in parallel in the middle, and the two ends of the coarse guide device 1 are arc structures bent outward. Lifting blocks 2 are arranged below the four corners of the coarse guide device 1, and a cylinder stopper 3 is arranged below the middle of the coarse guide device 1. Positioning pins 4 are arranged on the diagonal lifting blocks 2.

[0014] It is worth noting that the positioning pin 4 on the lifting block 2 is positioned and matched with the positioning hole 5 on the diagonal side of the AGV material transport trolley, and the cylinder stopper 3 is matched with the side stops 6 on both sides of the middle part of the AGV material transport trolley.

[0015] The working principle of this specific implementation method is as follows: 1. The AGV transports the material cart to the vicinity of the storage location. Since the AGV transportation path has a large deviation, it is necessary to use the rough guides on both sides to guide the material cart into the storage location for preliminary positioning;

[0016] 2. The cylinders in the middle of both sides flip up. When the AGV transporting material trolley moves to this position, the block on the trolley contacts this position to achieve the initial positioning in and out.

[0017] 3. After the initial positioning is completed, the four lifting cylinders at the bottom are lifted to lift the trolley, showing the precise positioning in the Z direction;

[0018] 4. During the lifting process, the positioning pins on the two diagonally arranged cylinders enter the positioning holes at the bottom of the rack to achieve precise positioning in the XY direction.

[0019] This specific implementation can realize a precise positioning mechanism for bidirectional storage of material carts and robot grasping, with high positioning accuracy and good reliability.

[0020] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An AGV material vehicle precision positioning mechanism, characterized in that: The invention comprises a rough guide device (1), a lifting block (2) and a cylinder stopper (3); the middle parts of the two rough guide devices (1) are arranged in parallel; the two ends of the rough guide device (1) are arc-shaped structures bent outward; the lifting blocks (2) are arranged below the four corners of the rough guide device (1); the cylinder stopper (3) is arranged below the middle part of the rough guide device (1); and positioning pins are arranged on the diagonal lifting blocks (2).

2. The AGV material vehicle precision positioning mechanism according to claim 1 is characterized in that: The positioning pin on the lifting block (2) is positioned and matched with the positioning hole (5) at the diagonal of the AGV material transport trolley, and the cylinder stopper (3) is matched with the side stoppers (6) on both sides of the middle of the AGV material transport trolley.

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