Magnetic navigation table

Abstract

The utility model discloses a magnetic navigation table, and belongs to the technical field of AGV magnetic navigation. According to the magnetic navigation table, the groove is formed in the table top, the magnetic strips are arranged to construct the magnetic navigation track for the AGV to walk in an automatic navigation mode, and the two S-pole magnetic strips and the two N-pole magnetic strips are arranged, so that the AGV can determine the direction of the AGV according to the magnetic pole change condition during rotation only by arranging one magnetic induction sensor; furthermore, the magnetic strips are clamped into the wooden table top, so that the service life is prolonged, and the magnetic strips are not easy to damage; furthermore, according to the magnetic navigation table provided by the utility model, universal wheels are mounted at the bottom, and a clamping device is mounted on the side edge, so that flexible splicing is facilitated when the workbench of the AGV needs to be expanded and changed, and the stability of a navigation path is ensured through clamping between the tables.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of magnetic navigation table, belong to AGV magnetic navigation technical field. BACKGROUND

[0002] AGV (Automated Guided Vehicle) is a kind of transport vehicle equipped with electromagnetic or optical automatic guiding device, widely used in manufacturing, logistics and warehousing, intelligent factory and multiple fields, for realizing material handling, cargo sorting, assembly line docking and other tasks.

[0003] Magnetic stripe navigation is a relatively mature navigation technology in AGV navigation technology, by laying magnetic stripe on road surface, AGV car senses the magnetic field information of ground magnetic stripe through self-installed magnetic sensor, and then converts the magnetic field information into electrical signal, to realize navigation.

[0004] In the prior art, in order to facilitate AGV car walking and paving, the magnetic stripe is usually embedded in the plastic carpet, and a square unit is formed, and each square unit is spliced by a certain buckling method. Although this method is convenient for splicing, the buckling part of this buckling method is easy to damage, and the splicing stability of the carpet is low. Moreover, because the magnetic stripe is embedded in the plastic carpet, if the plastic carpet is worn during use, the magnetic stripe will also be worn, which will cause the performance of the magnetic stripe to decrease, affecting the stability of the magnetic navigation system, so the magnetic stripe needs to be replaced, and the replacement cost is high. In addition, the square unit of the existing magnetic navigation carpet usually has one N-pole and three S-pole magnetic stripes or one S-pole and three N-pole magnetic stripes, and a magnetic induction sensor needs to be installed at the front and rear of the AGV car to realize stable magnetic stripe navigation, which increases the cost, increases the risk of signal interference, and the two magnetic induction sensors need to be accurately synchronized and coordinated, which increases the complexity of data processing. SUMMARY

[0005] In order to solve the above problems, the utility model provides a kind of magnetic navigation table, the magnetic navigation table includes support frame, table top and gyro wheel component;Wherein support frame includes support column, is set in table top below for supporting table top, the gyro wheel component is set in support column bottom to facilitate the movement of the magnetic navigation table;The recess is opened in the table top for installing magnetic stripe to construct magnetic navigation track;The length-width ratio of the table top is 2:1.

[0006] In one embodiment, each magnetic navigation table has two paths along the long side direction.

[0007] In one embodiment, the size of each magnetic navigation table is 1200mm*2400mm.

[0008] In an embodiment, the table top is composed of 16 square units arranged in a 2x4 array, each square unit has a cross-shaped groove on the corresponding table top, and is provided with two S-pole magnetic strips and two N-pole magnetic strips, and the two S-pole magnetic strips are adjacent and the two N-pole magnetic strips are adjacent; and a position identification mark is arranged at the center of the square unit corresponding table top.

[0009] In an embodiment, the table top is a wooden table top.

[0010] In an embodiment, the support frame further comprises a table top frame, which is located below the table top.

[0011] In an embodiment, the position identification mark is an RFID landmark tag or a magnetic bar code.

[0012] In an embodiment, the roller component is a universal wheel.

[0013] In an embodiment, the magnetic navigation table comprises four support columns, and the two support columns at one end of the magnetic navigation table are provided with universal wheels at the bottom and are provided with locking devices.

[0014] In an embodiment, the magnetic navigation table is provided with clamping devices at one long side and one short side, so as to realize expansion of the worktop of the AGV trolley in the long side direction and the short side direction respectively.

[0015] In an embodiment, the magnetic navigation table further comprises a carpet laid on the table top.

[0016] In an embodiment, the carpet material is plastic, nylon, TPE, PVC or polyester fiber.

[0017] Advantages of the utility model:

[0018] The magnetic navigation table provided by the utility model constructs a magnetic navigation track for the AGV trolley to automatically navigate and walk by slotting the table top and arranging magnetic strips, and makes the AGV trolley only need to be provided with one magnetic induction sensor to determine its direction according to the magnetic pole change condition when rotating by arranging two S-pole magnetic strips and two N-pole magnetic strips; further, the magnetic strips are clamped into the wooden table top, which improves the service life and is not easy to be damaged; further, the magnetic navigation table provided by the utility model is provided with universal wheels at the bottom and clamping devices at the side, which facilitates flexible splicing when it is necessary to expand and change the worktop of the AGV trolley, and guarantees the stability of the navigation path by clamping between the tables. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The support frame structure schematic view of the magnetic navigation table provided by the utility model;

[0020] Figure 2 A schematic diagram of a magnetic navigation table with magnetic strips laid on the tabletop, as provided by this utility model;

[0021] Figure 3 This is a diagram showing how the four magnetic navigation tables can be assembled.

[0022] Among them, 1-support column, 2-table frame, 3-caster wheel, 4-table, 5-clamping device, 6-magnetic strip, 7-position identification mark. Detailed Implementation

[0023] The following is a detailed description of this utility model.

[0024] Example 1

[0025] This embodiment provides a magnetic navigation table, such as Figure 1 As shown, it includes a support frame, a tabletop, and roller components; wherein the support frame includes a support column 1, which is set under the tabletop 4 to support the tabletop 4, and the roller components are set at the bottom of the support column 1 to facilitate the movement of the magnetic navigation table; the tabletop 4 has a groove for installing magnetic strips 6 to construct a magnetic navigation track; the aspect ratio of the tabletop 4 is 2:1.

[0026] like Figure 2 As shown, the tabletop is made of wood and consists of 16 square units arranged in a 2×4 array so that each magnetic navigation table has two paths along its long side. Each square unit has a cross groove on its tabletop 4, with 2 S pole and 2 N pole magnetic strips. The 2 S pole magnetic strips are adjacent to each other and the 2 N pole magnetic strips are adjacent to each other so that the AGV only needs to be equipped with one magnetic induction sensor to determine its own direction based on the change of magnetic poles when rotating. A position identification mark 7 is set at the center of the tabletop corresponding to the square unit.

[0027] When the AGV rotates 90°, there are four possible magnetic pole changes: from S pole to S pole, from S pole to N pole, from N pole to N pole, and from N pole to S pole. Therefore, only one magnetic induction sensor is needed to determine its own direction.

[0028] like Figure 1 As shown, the support frame also includes a table frame 2, located below the table 4.

[0029] The magnetic navigation table is equipped with a snap-fit ​​device 5 on one long side and one short side, so as to fix it to other magnetic navigation tables in the long side and short side directions respectively to expand the work surface of the AGV trolley; Figure 1 The image only shows the case where the snap-fit ​​device 5 is provided on the short side.

[0030] The roller component can be a universal wheel 3, in order to ensure the stability of the magnetic navigation table, the universal wheels can be installed at the bottom of the two support columns 1 at one end of the magnetic navigation table, and the other two support columns 1 at the bottom are not installed, and the universal wheels 3 are provided with locking devices, which can be closed when not moving to prevent the magnetic navigation table from moving.

[0031] In order to facilitate the movement of the AGV, the magnetic navigation table further comprises a carpet laid on the table top, which can be made of any one of plastic, nylon, TPE, PVC or polyester fiber. In this way, even if the carpet is damaged, it will not cause damage to the wooden table top and the magnetic strip, greatly reducing the maintenance and replacement cost. Moreover, the magnetic navigation table provided by the present application can be removed when not needed for magnetic navigation, and used as a common table top alone, greatly saving the cost of enterprises and saving warehouse space. In addition, in the case where the use site often changes, the magnetic navigation table is convenient to disassemble and move. Some industries (such as clothing, shoes and hats) will have sales peaks and valleys due to seasonal changes, and the number of AGV responsible for sorting needs to be increased / decreased according to actual conditions, and the sorting area also needs to be changed in size. At this time, workers only need to directly increase / decrease the magnetic navigation table. Figure 3 As shown in the figure, two tables can be arranged transversely to form four lanes when the sorting amount of goods is large, and only one table can be arranged transversely to form two lanes when the sorting amount of goods is small.

[0032] Working principle of the utility model:

[0033] In use, the magnetic navigation table is spliced to build a magnetic navigation path according to the actual required path, the automatic guided vehicle detects the change of the magnetic field through the magnetic induction sensor to determine the position and direction on the path; the position recognition device recognizes the position recognition mark in the magnetic strip unit to recognize the direction and accurately control the navigation direction of the automatic guided vehicle; in addition, the range of magnetic navigation is expanded through the splicable workbench support, thereby realizing accurate and stable magnetic navigation.

[0034] Although the utility model has disclosed the above-mentioned preferable embodiments, it is not intended to limit the utility model, and anyone skilled in the art can make various modifications and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model should be defined by the claims.

Claims

1. A magnetic navigation table, characterized by, The magnetic navigation table comprises a support frame, a table top and a roller component; wherein the support frame comprises support columns arranged under the table top to support the table top, and the roller component is arranged at the bottom of the support columns to facilitate movement of the magnetic navigation table; the table top is provided with a groove for installing a magnetic strip to construct a magnetic navigation track; the length-width ratio of the table top is 2:

1.

2. The magnetic navigation table of claim 1, wherein, The table top is composed of 16 square units arranged in a 2×4 array, each square unit is provided with a cross-shaped groove on the corresponding table top, and two S-pole magnetic strips and two N-pole magnetic strips are arranged, with the two S-pole magnetic strips adjacent to each other and the two N-pole magnetic strips adjacent to each other; a position recognition mark is arranged at the center of the corresponding table top of the square unit.

3. The magnetic navigation table of claim 2, wherein, The table top is a wooden table top.

4. The magnetic navigation table of claim 3, wherein, The support frame further comprises a table top frame, which is located below the table top.

5. The magnetic navigation table of claim 4, wherein, The position recognition mark is an RFID landmark tag or a magnetic bar code.

6. The magnetic navigation table of claim 5, wherein, The roller component is a universal wheel.

7. The magnetic navigation table of claim 6, wherein, The magnetic navigation table comprises four support columns, two of which are installed with universal wheels at the bottom and are provided with locking devices at the same time.

8. The magnetic navigation table of claim 7, wherein, The magnetic navigation table is provided with a clamping device at one long side and one short side.

9. The magnetic navigation table of claim 8, wherein, The magnetic navigation table further comprises a carpet laid on the table top.

10. The magnetic navigation table of claim 9, wherein, The carpet is made of plastic, nylon, TPE, PVC or polyester fiber.

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