Shelves and fixtures warehouse

Abstract

The utility model relates to the technical field of fixture warehouses, and specifically discloses a shelf and a fixture warehouse, wherein the shelf includes a shelf body, a plurality of first position detection members and a plurality of second position detection members, and the shelf body has a plurality of storage areas. The plurality of first position detection members are arranged at intervals along a first direction, and the plurality of second position detection members are arranged at intervals along a second direction, and the second direction intersects with the first direction. When a pick-and-place mechanism is located in a certain storage area, the first position detection member and the second position detection member can detect and mark a value domain set corresponding to the storage area where the pick-and-place mechanism is located. In the event of a fault, the plurality of first position detection members and the plurality of second position detection members will still provide accurate position feedback based on the actual position of the pick-and-place mechanism, thereby reducing the situation where the actual position of the pick-and-place mechanism is offset from the measured position and an accident of mis-insertion of a fixture occurs.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture warehouses, in particular to a shelf and a fixture warehouse. Background Art

[0002] The fixture library can store a large number of fixtures and can freely adjust the fixture switching order. For example, a three-dimensional fixture library includes lanes, stackers and shelves. Two rows of shelves can be set on both sides of each lane. The shelves are used to place fixtures. A stacker is set between the two rows of shelves to insert and remove fixtures for storage and transportation of fixtures.

[0003] On large-scale and high-intensity production lines, the stacker's cycle usually has to complete insertion, transportation, storage, return and other actions within 50 seconds. The cycle is very high, and the stacker's maximum operating speed is generally as high as 140 meters per minute.

[0004] In the related art, the stacker relies on an incremental encoder connected to the motor shaft to feedback the position. However, the incremental encoder may cause errors due to external factors, or the position may be reset due to an emergency stop failure. At this time, the operator is operating outside the warehouse area, which may lead to misjudgment and operational errors due to unclear vision, causing the actual position of the stacker to be wrong. At this time, the fork will be extended and inserted into the clamp by mistake, causing damage to the clamp or equipment. Utility Model Content

[0005] The utility model aims to provide a shelf and a fixture library to solve the technical problems in the related art that the fixture library uses an incremental encoder to feedback the position, which is prone to position clearing and mis-insertion of fixtures.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a shelf, comprising:

[0008] The rack body has a plurality of storage areas;

[0009] A plurality of first position detection members, the plurality of first position detection members are arranged at intervals along a first direction, and the first position detection members are used to mark a position range of the storage area in the first direction;

[0010] A plurality of second position detection members, the plurality of second position detection members are arranged at intervals along a second direction, the second direction intersects with the first direction, and the second position detection members are used to mark the position range of the storage area in the second direction;

[0011] Wherein, when the pick-and-place mechanism is located in a certain storage area, the first position detection component and the second position detection component can detect and mark the value range set corresponding to the storage area where the pick-and-place mechanism is located.

[0012] In one embodiment, the plurality of storage areas include at least one zero-point area, and the zero-point area is used for the pick-and-place mechanism to return to its original position when it is initially, terminated, or fails.

[0013] In one of the embodiments, a value range set of the storage area is marked by at least one first position detection component and one second position detection component.

[0014] In one embodiment, the sizes of the plurality of storage areas are equal, the distance between two adjacent first position detection members is equal, and / or the distance between two adjacent second position detection members is equal.

[0015] In one embodiment, the first position detection member and the second position detection member are configured as proximity switches.

[0016] In one embodiment, the storage areas are arranged in a plurality of rows along the first direction, and the storage areas are arranged in a plurality of columns along the second direction, and the plurality of storage areas are distributed in a matrix.

[0017] In one embodiment, the position value range of two adjacent storage areas in the first direction is continuous, and / or the position value range of two adjacent storage areas in the second direction is continuous.

[0018] In the second aspect, the utility model provides a fixture library, including a pick-and-place mechanism and a shelf in any of the above-mentioned schemes, wherein the pick-and-place mechanism can be moved to each of the storage areas, and the first position detection component and the second position detection component can detect and mark the value range set corresponding to the storage area where the pick-and-place mechanism is located.

[0019] In one embodiment, the fixture library includes a guide rail, the guide rail is arranged on the side of the rack body and extends along the first direction, the pick-and-place mechanism is slidably connected to the guide rail, and a plurality of the first position detection members are arranged at intervals on the guide rail or on the rack body;

[0020] The pick-and-place mechanism includes a support shaft and a pick-up member, the support shaft is extended along the second direction, the pick-up member is slidably connected to the support shaft, and a plurality of second position detection members are spaced apart on the support shaft or on the frame body.

[0021] In one embodiment, the fixture library further includes:

[0022] A display screen, the display screen is used to display the relative positions of the plurality of storage areas and mark the positions of the storage areas where the pick-and-place mechanisms are located; and / or,

[0023] An alarm is used to sound an alarm when the pick-and-place mechanism exceeds the position value range of the storage area.

[0024] The beneficial effects of the utility model are:

[0025] The utility model provides a shelf and a fixture library, the shelf comprises a shelf body, a plurality of first position detection components and a plurality of second position detection components, the plurality of first position detection components and the plurality of second position detection components can divide the shelf body into a plurality of storage areas by a preset manner, each storage area has a corresponding value range set, the value range set of the storage area refers to a combination of a position value range of the storage area along a first direction and a position value range of the storage area along a second direction, when a pick-and-place mechanism is located in a certain storage area, the first position detection component and the second position detection component can detect in real time the position of the storage area where the pick-and-place mechanism is located and the moving position of the pick-and-place mechanism in the storage area, even when a fault such as an emergency stop occurs, the plurality of first position detection components and the plurality of second position detection components can still provide accurate position feedback according to the actual position of the pick-and-place mechanism, thereby reducing the situation where the actual position of the pick-and-place mechanism is offset from the measured position and an accident of mis-insertion of a fixture occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a shelf in an embodiment of the utility model.

[0027] Figure 2 This is a schematic diagram of the distribution of components in a display screen in an embodiment of the utility model.

[0028] In the figure:

[0029] 1. rack body; 11. storage area; 11a. zero point area;

[0030] 2. A first position detection member;

[0031] 3. A second position detection member;

[0032] 4. Pick-and-place mechanism;

[0033] 5. Display screen;

[0034] 6. Alarm. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, 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, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] For ease of understanding, the fixture library is described in detail here:

[0040] In order to ensure the throughput of multiple models, the welding line of automobile manufacturers requires highly flexible model switching technology. The flexible fixture switching technology that combines fixtures and fixture libraries can meet the needs of unlimited flexibility and unlimited number of models, so it is used by many vehicle manufacturers. In order to meet the random switching needs of multiple models and multiple assembly fixtures, a fixture library that can store a large number of fixtures and arbitrarily adjust the fixture switching sequence is required. In order to save floor space and improve equipment efficiency, factories with larger production capacity often choose three-dimensional fixture libraries. The three-dimensional fixture library can be dispatched by the central control system to the location where the stacker is inserted or stored.

[0041] On large-scale, high-intensity production lines, the stacker operates at a very high rhythm. Whether storing or inserting and removing fixtures, the stacker's operating position is required to be very accurate to reduce the possibility of misinsertion of fixtures. Once there is a problem with the stacker's own position feedback, it is very easy to cause accidents such as misinsertion of fixtures.

[0042] The stacker in the fixture warehouse generally uses an incremental encoder for positioning. When the incremental encoder rotates, there is a corresponding pulse output. According to the judgment circuit and counter of the incremental encoder, the change of the rotation direction and the number of pulses can be inferred. The counting starting point can be set at will, and it can perform multi-turn infinite accumulation and measurement, and can achieve long-distance position feedback. If the position suddenly changes due to an emergency stop failure, the operator is operating outside the warehouse area, which is easy to make misjudgments and operating errors due to unclear vision. The actual position error of the stacker will cause the fork to extend and insert the fixture by mistake, which may easily cause damage to the fixture or equipment.

[0043] like Figure 1 to Figure 2 As shown, the X direction shown in the figure is the first direction, and the Y direction is the second direction. An embodiment of the first aspect of the utility model provides a shelf, which includes a shelf body 1, a plurality of first position detection members 2 and a plurality of second position detection members 3, the shelf body 1 has a plurality of storage areas 11, wherein the storage area 11 refers to the storage space divided by the shelf body 1 according to the need to place items, and two adjacent storage areas 11 can be separated by a partition or a rod, or the two adjacent storage areas 11 can also be connected to each other, and are virtually divided according to the detection range of the first position detection member 2 and the second position detection member 3.

[0044] Multiple first position detection components 2 are arranged at intervals along the first direction. The first position detection components 2 are used to mark the position value range of the storage area 11 in the first direction, that is, the position of the first position detection component 2 can be set corresponding to the position of the storage area 11. The first position detection component 2 can only perform position detection within the corresponding storage area 11. When a first position detection component 2 detects and identifies the pick-and-place mechanism 4, the position of the pick-and-place mechanism 4 in the first direction can be determined.

[0045] Multiple second position detection components 3 are arranged at intervals along the second direction, and the second direction intersects with the first direction. The second position detection components 3 are used to mark the position value range of the storage area 11 in the second direction, that is, the position of the second position detection component 3 can be set corresponding to the position of the storage area 11, and the second position detection component 3 can also perform position detection only within the range of the corresponding storage area 11. When a second position detection component 3 detects and identifies the pick-and-place mechanism 4, the position of the pick-and-place mechanism 4 in the first direction can be determined.

[0046] In this way, when the pick-and-place mechanism 4 is located in a certain storage area 11, the first position detection member 2 and the second position detection member 3 can detect and mark the value range set corresponding to the storage area 11 where the pick-and-place mechanism 4 is located, that is, multiple first position detection members 2 and multiple second position detection members 3 can divide the rack body 1 into multiple storage areas 11 in a preset manner, and each storage area 11 has a corresponding value range set. The value range set of the storage area 11 refers to the position value range of the storage area 11 along the first direction and the position value range of the storage area 11 along the second direction. When the pick-and-place mechanism 4 is located in a certain storage area 11, the first position detection member 2 and the second position detection member 3 can detect and mark the value range set corresponding to the storage area 11 where the pick-and-place mechanism 4 is located. When in the area 11, the first position detection component 2 and the second position detection component 3 can detect in real time the position of the storage area 11 where the pick-and-place mechanism 4 is located and the movement position of the pick-and-place mechanism 4 in the storage area 11. Even in the event of an emergency stop or other fault, multiple first position detection components 2 and multiple second position detection components 3 will still provide accurate position feedback based on the actual position of the pick-and-place mechanism 4, reducing the situation where the actual position of the pick-and-place mechanism 4 is offset from the measured position and the accident of mis-insertion of the fixture occurs. This solves the technical problem in the related technology that the fixture library uses an incremental encoder to feedback the position, which is prone to position clearing and mis-insertion of the fixture.

[0047] In this embodiment, the first position detection member 2 and the second position detection member 3 can be arranged on the rack body 1 or on an external device, and can be selected according to the installation requirements. It should be noted here that the pick-and-place mechanism 4 extends into the storage area 11 of the rack body 1 along the third direction to pick and place the items, and the third direction intersects with the first direction and the second direction in pairs, that is, the three directions are in different directions, for example, the first direction, the second direction and the third direction are perpendicular to each other.

[0048] like Figure 1 to Figure 2 As shown, in some embodiments, there is at least one zero point area 11a among the multiple storage areas 11, and the zero point area 11a is used for the initialization, termination or malfunction of the pick-and-place mechanism 4, that is, the zero point area 11a can be used as a pick-and-place area, and other storage areas 11 except the zero point area 11a can be used as storage areas. When the pick-and-place mechanism 4 receives a pick-and-place command, it can use the zero point area 11a as a starting point and move to the storage area to pick and place items. After completing the pick-and-place action, the pick-and-place mechanism 4 can move back to the zero point area 11a and wait for the next command, so as to provide a reference point for the movement of the pick-and-place mechanism 4 and reduce position offset. Moreover, when the pick-and-place mechanism 4 fails, the pick-and-place mechanism 4 can also automatically move back to the zero point area 11a for initialization calibration, so as to move again with the zero point area 11a as a reference point to reduce position offset.

[0049] In some embodiments, the value range set of a storage area 11 is marked by at least one first position detection component 2 and one second position detection component 3, that is, each storage area 11 is marked with one or more first position detection components 2 and one or more second position detection components 3 to ensure that the pick-and-place mechanism 4 can be accurately detected when it is located in any storage area 11, and multiple first position detection components 2 and second position detection components 3 corresponding to each storage area 11 can be provided, which can improve the accuracy of position detection, and position revision can be performed between multiple first position detection components 2 or multiple second position detection components 3 to reduce detection errors.

[0050] like Figure 1 to Figure 2 As shown, in some embodiments, the sizes of the multiple storage areas 11 are equal, the distance between two adjacent first position detection components 2 is equal, and / or the distance between two adjacent second position detection components 3 is equal. With this arrangement, the multiple first position detection components 2 can be arranged at equal intervals, and the multiple second position detection components 3 can be arranged at equal intervals, and the division of the storage areas 11 and the installation of the multiple first position detection components 2 and the multiple second position detection components 3 are more convenient.

[0051] In some embodiments, the first position detection component 2 and the second position detection component 3 are configured as proximity switches. The proximity switch refers to a position switch that can be operated without direct mechanical contact with the pick-and-place mechanism 4. When the pick-and-place mechanism 4 moves to the action distance of the proximity switch, that is, the pick-and-place mechanism 4 is located within the position value range of the proximity switch, the proximity switch can be actuated without mechanical contact or application of any pressure, thereby driving DC electrical appliances or providing control instructions to the central control system. It has reliable action, stable performance, fast frequency response, long service life, strong anti-interference ability, and has the characteristics of being waterproof, shockproof, and corrosion-resistant.

[0052] In this embodiment, both the first position detection member 2 and the second position detection member 3 can be connected to the programmable logic controller in communication. For example, the programmable logic controller has an I / O module, and the I / O module is connected to the first position detection member 2 and the second position detection member 3 in communication. The programmable logic controller may include a position detection function block, an area range data block, a display communication module, an automatic detection alarm module, and an automatic return to zero position initialization module. The position detection function block can be used to store the detection data of the first position detection member 2 and the second position detection member 3. The area range data block is used to store the position and size information of the storage area 11. The display communication module can be used to communicate with the display screen 5 to provide the display screen 5 with detection information of the storage area 11 and the first position detection member 2 and the second position detection member 3. The automatic detection alarm module is used to communicate with the alarm 6 to provide the alarm 6 with alarm information. The automatic return to zero position initialization module can be used to communicate with the pick-and-place mechanism 4 to adjust the pick-and-place mechanism 4 to return to its original position after the pick-and-place action ends or a fault occurs.

[0053] like Figure 1 to Figure 2 As shown, in some embodiments, the storage areas 11 are arranged in multiple rows along the first direction, and the storage areas 11 are arranged in multiple columns along the second direction, and the multiple storage areas 11 are distributed in a matrix. With this arrangement, the cross-section of the storage area 11 can be but is not limited to a square, a circle or a diamond. The multiple storage areas 11 are distributed in a matrix, which can not only facilitate the storage of items such as clamps, but also facilitate the layout and position detection of the first position detection component 2 and the second position detection component 3.

[0054] like Figure 1 to Figure 2 As shown, in some embodiments, the position value range of two adjacent storage areas 11 in the first direction is continuous, and / or the position value range of two adjacent storage areas 11 in the second direction is continuous, that is, the detection range between two adjacent first position detection components 2 can cover the size range of the two adjacent storage areas 11 in the first direction, and the detection range between two adjacent second position detection components 3 can cover the size range of the two adjacent storage areas 11 in the second direction, so that the detection range of the first position detection component 2 and the second position detection component 3 can cover the entire rack body 1 and detect the entire travel range of the pick-and-place mechanism 4.

[0055] like Figure 1 to Figure 2 As shown, an embodiment of the second aspect of the utility model provides a fixture library, including a pick-and-place mechanism 4 and the above-mentioned shelves, the pick-and-place mechanism 4 can be moved to each storage area 11, the first position detection component 2 and the second position detection component 3 can detect and mark the value range set corresponding to the storage area 11 where the pick-and-place mechanism 4 is located, that is, when the pick-and-place mechanism 4 is located in a certain storage area 11, the first position detection component 2 and the second position detection component 3 can detect the position of the storage area 11 where the pick-and-place mechanism 4 is located and the movement position of the pick-and-place mechanism 4 in the storage area 11 in real time, even if a fault such as an emergency stop occurs, multiple first position detection components 2 and multiple second position detection components 3 will still provide accurate position feedback based on the actual position of the pick-and-place mechanism 4, reducing the situation where the actual position of the pick-and-place mechanism 4 is offset from the measured position and causing the accident of mis-insertion of the fixture, thereby improving the safety and reliability of the use of the fixture library.

[0056] In this embodiment, two shelves may be provided, for example, Figure 2 As shown in the rack body 1a and the rack body 1b, the two shelves can be arranged on both sides of the pick-and-place mechanism 4, so as to save floor space.

[0057] In some embodiments, the fixture library includes a guide rail, which is arranged on the side of the frame body 1 and extends along the first direction. The pick-and-place mechanism 4 is slidably connected to the guide rail, and a plurality of first position detection members 2 are arranged at intervals on the guide rail or on the frame body 1, that is, the first position detection member 2 can be installed on both the frame body 1 and the guide rail, so as to detect and mark the moving position of the pick-and-place mechanism 4 in the first direction.

[0058] The pick-and-place mechanism 4 includes a support shaft and a pick-and-place piece. The support shaft extends along the second direction. The pick-and-place piece is slidably connected to the support shaft. A plurality of second position detection pieces 3 are arranged at intervals on the support shaft or the frame body 1. That is, the second position detection piece 3 can be installed on either the frame body 1 or the support shaft of the pick-and-place mechanism 4 so as to detect and mark the pick-and-place position of the pick-and-place piece in the second direction.

[0059] like Figure 1 to Figure 2 As shown, in some embodiments, the fixture library also includes a display screen 5, which is used to display the relative positions of multiple storage areas 11 and mark the positions of the storage areas 11 where the pick-and-place mechanisms 4 are located. In this way, the display screen 5 can intuitively display the positions of multiple storage areas 11 and the pick-and-place mechanisms 4, which is convenient for users to monitor.

[0060] In some embodiments, the fixture library also includes an alarm 6, which is used to alarm when the pick-and-place mechanism 4 exceeds the position value range of the storage area 11. The alarm 6 can be but is not limited to an audible and visual alarm or a vibration alarm. When the pick-and-place mechanism 4 exceeds the position value range of the storage area 11, it can promptly give the user a prompt to reduce the user's mistaken insertion operation.

[0061] In summary, taking a 6×9 shelf as an example, the use of the shelf and fixture library is explained:

[0062] First, if Figure 1As shown, the shelf body 1 can be divided into 54 storage areas 11 according to the pick-and-place requirements of the pick-and-place mechanism 4. Nine first position detection components 2 are arranged at equal intervals along the first direction, and the nine first position detection components 2 can be numbered 1-9 in sequence. Six second position detection components 3 are arranged at equal intervals along the second direction, and the six second position detection components 3 can be numbered AF in sequence. Each storage area 11 will be marked with a different value range set. For example, the value range set of the storage area 11 marked by the first position detection component 2 No. 1 and the second position detection component 3 No. A can be numbered A1 accordingly. By analogy, the 54 storage areas 11 can be numbered A1-F9 in sequence. At least one of the 54 storage areas 11 is selected as the zero-point area 11a, or the column where the zero-point area 11a is located along the second direction can also be independently set from the 54 storage areas 11, that is, the frame body 1 can independently set two storage areas 11 as the zero-point area 11a on one side of the 54 storage areas 11, and the zero-point area 11a can be additionally provided with a first position detection component 2 for independent detection. The additional first position detection component 2 can be numbered O, and the zero-point area 11a can be divided into a starting area and an end area. The value range set of the storage area 11 corresponding to the starting area can be numbered B0, and the value range set of the storage area 11 corresponding to the end area can be numbered A0. Multiple storage areas 11 cover the entire driving range of the pick-and-place mechanism 4.

[0063] When the picking and placing mechanism 4 passes through different first position detection components 2 and second position detection components 3 during driving, the first position detection component 2 and the second position detection component 3 can detect and mark the value range set corresponding to the storage area 11 where the picking and placing mechanism 4 is located, thereby positioning it according to the partitioning of the 54 storage areas 11, determining the actual storage area 11 where the picking and placing mechanism 4 is located, and then checking whether the actual position of the picking and placing mechanism 4 is within this storage area 11.

[0064] The display screen 5 can display the relative positions of the multiple storage areas 11 of the pick-and-place mechanism 4 in real time and mark the position of the storage area 11 where the pick-and-place mechanism 4 is located. If the actual position of the pick-and-place mechanism 4 is not within the corresponding storage area 11, that is, it exceeds the position value range of the storage area 11, the pick-and-place mechanism 4 can stop immediately and issue an alarm through the alarm 6. After clearing the alarm, the pick-and-place mechanism 4 can automatically return to the zero point area 11a for initialization calibration. After confirming the zero point, the pick-and-place mechanism 4 can continue to operate.

[0065] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A shelf, characterized in that: include: The rack body (1) has a plurality of storage areas (11); A plurality of first position detection members (2), the plurality of first position detection members (2) being arranged at intervals along a first direction, the first position detection members (2) being used to mark a position range of the storage area (11) in the first direction; a plurality of second position detection members (3), the plurality of second position detection members (3) being arranged at intervals along a second direction, the second direction intersecting with the first direction, the second position detection members (3) being used to mark a position range of the storage area (11) in the second direction; When the pick-and-place mechanism (4) is located in a certain storage area (11), the first position detection component (2) and the second position detection component (3) are capable of detecting and marking a value range set corresponding to the storage area (11) where the pick-and-place mechanism (4) is located.

2. The shelf according to claim 1, characterized in that: At least one zero point area (11a) is provided among the plurality of storage areas (11), and the zero point area (11a) is used for returning the pick-and-place mechanism (4) to its original position when it is initially operated, terminated or fails.

3. The shelf according to claim 1, characterized in that: A value range set of the storage area (11) is marked by at least one of the first position detection components (2) and one of the second position detection components (3).

4. The shelf according to claim 1, characterized in that: The sizes of the plurality of storage areas (11) are equal, the distance between two adjacent first position detection components (2) is equal, and / or the distance between two adjacent second position detection components (3) is equal.

5. The shelf according to claim 1, characterized in that: The first position detection element (2) and the second position detection element (3) are configured as proximity switches.

6. The shelf according to claim 1, characterized in that: The storage areas (11) are arranged in a plurality of rows along the first direction, and the storage areas (11) are arranged in a plurality of columns along the second direction, and the plurality of storage areas (11) are distributed in a matrix.

7. The shelf according to claim 1, characterized in that: The position value ranges of two adjacent storage areas (11) in the first direction are continuous, and / or the position value ranges of two adjacent storage areas (11) in the second direction are continuous.

8. A fixture library, characterized in that: It comprises a pick-and-place mechanism (4) and the shelf according to any one of claims 1 to 7, wherein the pick-and-place mechanism (4) can be moved to each of the storage areas (11), and the first position detection component (2) and the second position detection component (3) can detect and mark the value range set corresponding to the storage area (11) where the pick-and-place mechanism (4) is located.

9. The fixture library according to claim 8, characterized in that: The fixture library comprises a guide rail, the guide rail is arranged on the side of the frame body (1) and extends along the first direction, the pick-and-place mechanism (4) is slidably connected to the guide rail, and a plurality of the first position detection members (2) are arranged at intervals on the guide rail or on the frame body (1); The pick-and-place mechanism (4) comprises a support shaft and a pick-up member, the support shaft is extended along the second direction, the pick-up member is slidably connected to the support shaft, and a plurality of second position detection members (3) are arranged at intervals on the support shaft or on the frame body (1).

10. The fixture library according to claim 8, characterized in that: The fixture library also includes: A display screen (5), the display screen (5) being used to display the relative positions of the plurality of storage areas (11) and mark the position of the storage area (11) where the pick-and-place mechanism (4) is located; and / or, An alarm (6) is used to sound an alarm when the pick-and-place mechanism (4) exceeds the position value range of the storage area (11).

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