Automatic docking device for AGV trolley and material rack

Abstract

The utility model relates to the technical field of material conveying, and discloses an automatic docking device for an AGV trolley and a material shelf, which at least comprises a driving seat arranged at the bottom of a trolley frame body, a conveying belt is arranged in the trolley frame body, lifting mechanisms are arranged on two sides of the conveying belt, and an automatic docking device is arranged on the trolley frame body. The automatic butt-joint device comprises a trolley butt-joint assembly and a material frame butt-joint assembly, the trolley butt-joint assembly comprises a base, a locking arm and a buffer block, the material frame butt-joint assembly comprises a positioning wheel and a mounting frame, the mounting frame is connected with the positioning wheel through a connecting rod, a magnetic block is arranged on the inner side of the buffer block, and the magnetic block is connected with the base. The positioning wheel and the magnetic block are correspondingly arranged; according to the utility model, laser positioning is adopted to carry out navigation correction on automatic butt joint of the trolley, and meanwhile, an automatic butt joint device is arranged, so that when the trolley is close to a material rack, a locking arm which is unfolded in a splayed manner quickly guides a positioning wheel, the butt joint efficiency and reliability are improved, and double guarantee of automatic butt joint is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation, in particular to an automatic docking device for an AGV trolley and a material rack. Background Art

[0002] At present, most of the factory material automation transportation projects use AGV carts to replace the mode of manual material handling. Automated Guided Vehicle (AGV), also commonly known as AGV carts, refers to a transport vehicle equipped with electromagnetic or optical automatic navigation devices, which can travel along a specified navigation path and has safety protection and various transfer functions.

[0003] AGVs are mainly used as transport vehicles in industry. Their travel paths and movements can usually be controlled by computers, or electromagnetic tracks can be used to set up the travel paths of AGVs. AGVs rely on the information provided by electromagnetic tracks to move and act.

[0004] The driving mechanism of existing AGV carts is mainly wheels. However, in actual use, there will inevitably be gullies on the floor of the production plant, which will affect the positioning accuracy of the cart. If docking is done solely by electronic equipment, repeated adjustments are required, which is inefficient and requires complex calculation and control procedures, increasing production costs and affecting docking efficiency. Utility Model Content

[0005] The utility model aims to provide an automatic docking device for an AGV trolley and a material rack, aiming to solve the problem that the existing AGV trolley has low positioning accuracy and leads to low docking efficiency.

[0006] The utility model is implemented as follows: an automatic docking device for an AGV trolley and a material rack comprises at least a driving seat installed at the bottom of a trolley frame, a conveyor belt is arranged in the trolley frame, lifting mechanisms are arranged on both sides of the conveyor belt, and an automatic docking device is arranged on the trolley frame; the automatic docking device comprises a trolley docking assembly and a material rack docking assembly, the trolley docking assembly comprises a base, a locking arm and a buffer block, the material rack docking assembly comprises a positioning wheel and a mounting frame, the mounting frame is connected to the positioning wheel through a connecting rod, a magnetic block is arranged on the inner side of the buffer block, and the positioning wheel and the magnetic block are arranged correspondingly.

[0007] Preferably, a laser positioning transmitter is provided on the base, a laser positioning receiver is provided on the mounting frame, and the laser positioning transmitter and the laser positioning receiver are arranged correspondingly; an industrial computer is provided in the driving seat, and the laser positioning transmitter is electrically connected to the industrial computer.

[0008] Preferably, the locking arms are provided with two groups and are symmetrically arranged on both sides of the base. The locking arms are rotatably connected to the base. A control motor adapted to the locking arms is provided on the inner side of the base. A buffer pad is provided on one side of the locking arms, and an anti-collision wheel is provided at one end of the locking arms.

[0009] Preferably, the connecting rod is fixedly connected to the mounting frame, the connecting rod is provided with two groups and is distributed in an eight-shaped shape, and the locking arm is arranged corresponding to the connecting rod.

[0010] Preferably, a driving wheel and a steering wheel are provided at the bottom of the driving seat, and a motor corresponding to the driving wheel and the steering wheel is provided inside the driving seat.

[0011] Preferably, a lifting rod and a fork arm are provided on the inner side of the lifting mechanism, the fork arm is connected to the conveyor belt, and the fork arm is slidably connected to the lifting rod.

[0012] The utility model discloses an automatic docking device for an AGV trolley and a material rack, and the beneficial effects are as follows: compared with the prior art, the utility model adopts laser positioning to perform navigation correction on the automatic docking of the trolley, and an automatic docking device is arranged at the same time, when the trolley approaches the material rack, the locking arms spread out in an outward-facing manner quickly correct and guide the positioning wheels, thereby improving the docking efficiency and reliability, and realizing the dual guarantee of automatic docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the general assembly of an automatic docking device for an AGV trolley and a material rack provided by an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of an AGV trolley and a material rack automatic docking device provided by an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a trolley docking assembly of an automatic docking device for an AGV trolley and a material rack provided by an embodiment of the utility model;

[0016] Figure 4 It is a schematic diagram of the automatic docking and locking state of an automatic docking device for an AGV trolley and a material rack provided by an embodiment of the utility model.

[0017] Marking Description:

[0018] 1. Trolley frame; 2. Conveyor belt; 3. Lifting mechanism; 4. Driving seat; 5. Trolley docking assembly; 6. Material rack docking assembly;

[0019] 51. base; 52. laser positioning transmitter; 53. locking arm; 54. anti-collision wheel; 55. buffer pad; 56. buffer block;

[0020] 61. Positioning wheel; 62. Laser positioning receiver; 63. Mounting bracket. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present utility model. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] In this embodiment:

[0025] Reference Figure 1-4 As shown, a preferred embodiment of the utility model is provided.

[0026] The automatic docking device of the AGV trolley and the material rack of this embodiment at least includes a material rack and a driving seat 4 installed at the bottom of the trolley frame 1. The driving seat 4 is provided with a driving wheel and a steering wheel at the bottom. The driving seat 4 is provided with a motor corresponding to the driving wheel and the steering wheel, which is used to control the forward, backward, left and right movement of the trolley to realize the automatic driving of the AGV trolley and move to a designated position. A conveyor belt 2 is provided in the trolley frame 1 for conveying and temporarily placing materials. Lifting mechanisms 3 are provided on both sides of the conveyor belt 2 for adjusting the height of the conveyor belt 2 to adapt to different material racks. A lifting rod and a fork arm are provided on the inner side of the lifting mechanism 3. The fork arm is connected to the conveyor belt 2, and the fork arm is slidably connected to the lifting rod. The fork arm is controlled to slide up and down by a lead screw or a chain in the lifting mechanism 3, thereby controlling the conveyor belt 2 to move up and down, adapting to the height of the material rack, and completing material transportation;

[0027] Among them, the trolley frame 1 is provided with an automatic docking device, which is used to complete the automatic docking between the trolley and the material rack. The automatic docking device includes a trolley docking component 5 and a material rack docking component 6. The trolley docking component 5 is fixedly connected to the trolley frame 1, and the material rack docking component 6 is connected to the material rack;

[0028] Furthermore, the trolley docking assembly 5 includes a base 51, a locking arm 53 and a buffer block 56. The base 51 is fixedly connected to the trolley frame 1. The locking arms 53 are provided with two groups and are symmetrically arranged on both sides of the base 51 in an outward eight-shaped shape. The locking arms 53 are rotatably connected to the base 51. A control motor adapted to the locking arm 53 is provided on the inner side of the base 51. The control motor is used to control the rotation of the locking arm 53. A buffer pad 55 is provided on one side of the locking arm 53 to bear the impact and offset the impact force to avoid affecting the accuracy and reliability of automatic docking. An anti-collision wheel 54 is provided at one end of the locking arm 53. The anti-collision wheel 54 is made of rubber material, shock-absorbing and buffering, and is used to protect the locking arm 53 and other components.

[0029] It is worth noting that the material rack docking assembly 6 includes a positioning wheel 61 and a mounting frame 63, the mounting frame 63 is fixedly connected to the material rack, the mounting frame 63 is connected to the positioning wheel 61 through a connecting rod, the connecting rod is fixedly connected to the mounting frame 63, there are two groups of connecting rods, and they are distributed in an eight-shaped shape, the locking arm 53 is arranged corresponding to the connecting rod, the buffer block 56 is provided with a side curved surface adapted to the positioning wheel 61, which is used to adapt to the positioning wheel 61, a magnetic block is provided on the inner side of the buffer block 56, the positioning wheel 61 is arranged corresponding to the magnetic block, and when in contact, magnetic adsorption is performed to improve the docking efficiency and reliability.

[0030] In this embodiment, a laser positioning transmitter 52 is provided on the base 51, and a laser positioning receiver 62 is provided on the mounting frame 63. The laser positioning transmitter 52 and the laser positioning receiver 62 are correspondingly arranged for rapid positioning and determining the position deviation between the trolley and the material rack. An industrial computer is provided in the drive seat 4, and the laser positioning transmitter 52 is electrically connected to the industrial computer. The industrial computer receives the feedback signal from the laser positioning receiver 62, controls the drive seat 4 to move, and adjusts the position of the trolley.

[0031] In this embodiment, the trolley receives the general control task command and starts, the driving seat 4 controls the driving wheel to move, and the steering wheel adjusts the direction to achieve automatic intelligent movement, and the laser positioning transmitter 52 sends a signal until the laser positioning receiver 62 detects the signal and feeds it back to the industrial computer. The industrial computer controls the driving seat 4 to adjust the position according to the position deviation until the trolley and the material rack are aligned, and the trolley continues to move;

[0032] As the trolley approaches, the positioning wheel 61 contacts the locking arm 53, and the locking arm 53 guides the positioning wheel 61 to correct the deviation and adjust the moving direction. The buffer pad 55 offsets the impact of the positioning wheel 61 to reduce the noise caused by the collision during the docking process, until the positioning wheel 61 contacts the buffer block 56, and the magnetic block and the positioning wheel 61 are adsorbed by magnetic force to complete the temporary docking, and then the control motor drives the locking arm 53 to swing and lock the positioning wheel 61;

[0033] After that, the lifting mechanism 3 adjusts the height of the conveyor belt 2, matches the material rack, and the conveyor belt 2 transports the material and performs temporary storage;

[0034] After that, the trolley detaches from the material rack, moves, and completes the material handling until it arrives at the next workstation, where it performs positioning, docking, and material transportation again.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic docking device for an AGV trolley and a material rack, comprising at least a driving seat installed at the bottom of the trolley frame, characterized in that: A conveyor belt is arranged in the trolley frame, lifting mechanisms are arranged on both sides of the conveyor belt, and an automatic docking device is arranged on the trolley frame; The automatic docking device includes a trolley docking assembly and a material rack docking assembly, the trolley docking assembly includes a base, a locking arm and a buffer block, the material rack docking assembly includes a positioning wheel and a mounting frame, the mounting frame is connected to the positioning wheel through a connecting rod, a magnetic block is provided on the inner side of the buffer block, and the positioning wheel and the magnetic block are arranged correspondingly.

2. The automatic docking device for an AGV trolley and a material rack according to claim 1 is characterized in that: The base is provided with a laser positioning transmitter, the mounting frame is provided with a laser positioning receiver, and the laser positioning transmitter and the laser positioning receiver are arranged correspondingly; An industrial computer is arranged in the driving seat, and the laser positioning transmitter is electrically connected to the industrial computer.

3. The automatic docking device for an AGV trolley and a material rack according to claim 1 is characterized in that: The locking arms are provided with two groups and are symmetrically arranged on both sides of the base. The locking arms are rotatably connected to the base. A control motor adapted to the locking arms is provided on the inner side of the base. A buffer pad is provided on one side of the locking arms, and an anti-collision wheel is provided at one end of the locking arms.

4. The automatic docking device for an AGV trolley and a material rack according to claim 3 is characterized in that: The connecting rod is fixedly connected to the mounting frame. The connecting rod is provided with two groups and is distributed in an eight-shaped shape. The locking arm is correspondingly arranged to the connecting rod.

5. The automatic docking device for an AGV trolley and a material rack according to claim 1, characterized in that: A driving wheel and a steering wheel are arranged at the bottom of the driving seat, and a motor corresponding to the driving wheel and the steering wheel is arranged inside the driving seat.

6. The automatic docking device for an AGV trolley and a material rack according to claim 1, characterized in that: A lifting rod and a fork arm are arranged inside the lifting mechanism. The fork arm is connected to the conveyor belt, and the fork arm is slidably connected to the lifting rod.

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