Sorting workstation and sorting system

Abstract

The present application relates to the technical field of sorting, and provides a sorting workstation and a sorting system, used for solving the technical problem of low sorting safety. The sorting workstation comprises: a workbench provided with a horizontally arranged sorting tabletop, the sorting tabletop being provided with a sorting opening passing through the sorting tabletop; and a position detection assembly located below the sorting tabletop, wherein the position detection assembly comprises a first position sensor, a second position sensor, and a third position sensor sequentially arranged at intervals in a first direction, the projections of the first position sensor and the second position sensor on the sorting tabletop are within a projection range of the sorting opening on the sorting tabletop, while the projection of the third position sensor on the sorting tabletop is outside the projection range of the sorting opening on the sorting tabletop, and the spacing between the second position sensor and the third position sensor is less than a following distance between two adjacent robots used to convey containers to the sorting opening. The present application improves sorting safety.

Description

Picking workstations and picking systems

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 15, 2023, with application number 202322210715.7 and application name “Picking Workstation and Picking System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of sorting technology, and in particular to a picking workstation and a picking system. Background Art

[0003] The vigorous development of robotics technology in recent years has brought about tremendous technological changes in the entire logistics industry, and has also brought new technologies and new design concepts to the sorting industry.

[0004] In related technologies, the robot picking system adopts a "goods-to-person" model, where the operator waits at the picking station for the robot carrying the material box to arrive at the workstation and pick the goods.

[0005] However, existing picking workstations do not provide adequate protection for picking personnel and present a technical problem of low picking safety.

[0006] Summary of the Invention

[0007] In view of the above problems, the embodiments of the present application provide a picking workstation and a picking system, which improve the protection of picking personnel and thus improve picking safety.

[0008] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0009] A first aspect of an embodiment of the present application provides a picking workstation, comprising: a workbench, the workbench having a horizontally arranged picking tabletop, the picking tabletop having a picking opening passing through the picking tabletop;

[0010] a position detection component located below the picking table; the position detection component includes a first position sensor, a second position sensor, and a third position sensor arranged in sequence and spaced apart in a first direction, wherein the projections of the first position sensor and the second position sensor on the picking table are within the projection range of the picking port on the picking table, and the projection of the third position sensor on the picking table is not within the projection range of the picking port on the picking table;

[0011] The distance between the second position sensor and the third position sensor is smaller than the following distance between two adjacent robots for transporting material boxes to the picking port.

[0012] In some embodiments, the workbench includes a partition assembly, and the partition assembly is located at the bottom of the picking table;

[0013] The partition assembly includes a first partition, which is connected to the edge of the picking table close to the picking personnel. The first partition is configured to support the picking table, and the first position sensor, the second position sensor and the third position sensor are arranged on the side wall of the first partition facing the material box.

[0014] In some embodiments, the partition assembly further includes a second partition and a third partition, which are respectively located on both sides of the first partition and connected to the edge of the picking table, and the second partition and the third partition are configured to support the picking table together with the first partition.

[0015] In some embodiments, a picking recess is provided on the side of the picking table close to the picking personnel;

[0016] The picking recess includes a first connecting segment, a second connecting segment, and a third connecting segment connected in sequence, wherein the first connecting segment extends along a first direction, the second connecting segment and the third connecting segment are respectively located on both sides of the first connecting segment, and the second connecting segment and the third connecting segment have an inclined angle with the first connecting segment, and the second connecting segment and the third connecting segment are respectively inclined toward a side away from the first connecting segment;

[0017] The first partition is connected to the first connecting section, a portion of the second partition is connected to the second connecting section, and a portion of the third partition is connected to the third connecting section. In some embodiments, a light curtain assembly is further included, the light curtain assembly including a transmitter and a receiver, wherein along a second direction, the transmitter is disposed on one side of the picking port, and the receiver is disposed on the other side of the picking port, the transmitter being configured to emit light toward the receiver that can be received by the receiver; wherein the second direction and the first direction are perpendicular to each other in a horizontal plane.

[0018] In some embodiments, when the first position sensor and the second position sensor detect a robot, and the third position sensor does not detect a robot, it is determined that the robot has reached the picking position of the picking port, and the transmitter is turned off.

[0019] In some embodiments, a baffle assembly is further included, wherein the baffle assembly includes a first baffle, the first baffle is disposed on the picking table and connected to an edge of the picking table on a side away from the picking personnel.

[0020] In some embodiments, the baffle assembly further includes two second baffles, which are respectively located on both sides of the first baffle and connected to the first baffle, and the two second baffles are respectively connected to the edges of the corresponding picking table.

[0021] In some embodiments, the distance between the picking port and the material box below the picking port is 50 mm to 55 mm.

[0022] In some embodiments, the first position sensor, the second position sensor, and the third position sensor are all photoelectric sensors.

[0023] A second aspect of an embodiment of the present application provides a picking system, including a picking workstation provided in the above embodiment.

[0024] The picking workstation provided in the embodiment of the present application includes a workbench and a position detection component, the workbench has a horizontally arranged picking table, and the picking table has a picking opening that passes through the picking table. In this way, when the robot transports the material box to the bottom of the picking opening, the picker can pick the goods in the material box through the picking opening. Since the workbench is in the form of a table, it is difficult for the picker to cross the picking table and enter the robot area, which can reduce safety issues during picking. In addition, a position detection component is provided under the picking table, and the position detection component includes a first position sensor, a second position sensor and a third position sensor that are sequentially spaced along a first direction. The first direction is the direction in which the robot transports the material box to the picking opening, and the first position sensor is the direction in which the robot transports the material box to the picking opening. The projections of the sensor and the second position sensor on the picking table are within the projection range of the picking port on the picking table, and the projection of the third position sensor on the picking table is not within the projection range of the picking port on the picking table; and the distance between the second position sensor and the third position sensor is smaller than the following distance between two adjacent robots for transporting material boxes to the picking port. In this way, when the first position sensor and the second position sensor detect the robot at the same time, and the third position sensor does not detect the robot, it is determined that the robot has arrived at the picking position. At this time, the picker can pick the goods in the material box through the picking port, thereby improving the detection accuracy of the robot arriving at the picking position, and thereby improving the safety and reliability of the picker when picking.

[0025] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the picking workstation and picking system provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] FIG1 is a schematic structural diagram of a workbench in a picking workstation provided in an embodiment of the present application;

[0028] FIG2 is a structural diagram of a workbench in a picking workstation provided by an embodiment of the present application from another perspective;

[0029] FIG3 is a partial enlarged schematic diagram of point A in FIG2 ;

[0030] FIG4 is a partial enlarged schematic diagram of point B in FIG2 ;

[0031] FIG5 is a schematic diagram of a state in which a material box moves to a picking port of a workbench in a picking workstation provided by an embodiment of the present application;

[0032] FIG6 is a schematic diagram of a state of a picking workstation provided in an embodiment of the present application.

[0033] Figure markings: 100-picking workstation; 110-workbench; 111-picking table; 112-picking port; 113-partition assembly; 1131-first partition; 1132-second partition; 1133-third partition; 114-baffle assembly; 1141-first baffle; 1142-second baffle; 115-picking recess; 1151-first connecting section; 1152-second connecting section; 1153-third connecting section; 116-support frame; 120-position detection assembly; 121-first position sensor; 122-second position sensor; 123-third position sensor; 130-light curtain assembly; 131-transmitter; 132-receiver; 200-material box. DETAILED DESCRIPTION

[0034] In related technologies, robotic picking systems employ a "goods-to-person" model, where operators wait at a picking station for a robot carrying a bin or other items to arrive at the workstation and then pick the goods. However, existing picking stations offer insufficient protection for pickers. For example, pickers can easily enter the robot area from the workstation, posing a safety hazard. Furthermore, the accuracy of detecting whether the robot has reached the picking location is low, resulting in technical issues such as low picking safety.

[0035] In order to solve the above problems, the present application provides a picking workstation, including a workbench and a position detection component. The workbench has a horizontally arranged picking table, and the picking table has a picking opening that passes through the picking table. In this way, when the robot moves the material box to the bottom of the picking opening, the picker can pick the goods in the material box through the picking opening. Since the workbench is in the form of a table, it is difficult for the picker to step over the picking table to enter the robot area, thereby reducing safety issues during picking.

[0036] In addition, a position detection component is provided under the picking table, and the position detection component includes a first position sensor 121, a second position sensor 122 and a third position sensor 123 which are arranged in sequence along a first direction. The first direction is the moving direction of the robot transporting the material box to the picking port. The projections of the first position sensor 121 and the second position sensor 122 on the picking table are located within the projection range of the picking port on the picking table, and the projection of the third position sensor 123 on the picking table is not within the projection range of the picking port on the picking table; and the spacing between the second position sensor 122 and the third position sensor 123 is smaller than the following distance between two adjacent robots for transporting the material box to the picking port. In this way, when the first position sensor 121 and the second position sensor 122 detect the robot at the same time, and the third position sensor 123 does not detect the robot, it is determined that the robot has arrived at the picking position. At this time, the picker can pick the goods in the material box through the picking port, thereby improving the detection accuracy of the robot arriving at the picking position, and thereby improving the safety and reliability of the picker when picking.

[0037] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0038] Please refer to Figures 1 to 6 , an embodiment of the present application provides a picking workstation 100, including a workbench 110 and a position detection component 120; the workbench 110 has a horizontally arranged picking table 111, that is, the picking table 111 is horizontally supported by a support frame 116 and other supporting structures, and the picking table 111 has a picking opening 112 that passes through the picking table 111, so that when the robot moves the material box 200 to the bottom of the picking opening 112, the pickers can pick the goods in the material box 200 through the picking opening 112; since the workbench 110 is in the form of a table, it is difficult for the pickers to cross the picking table 111 and enter the robot area, thereby reducing safety issues during picking and ensuring the safety of the pickers.

[0039] In addition, the position detection component 120 is arranged below the picking table 111 to detect whether the robot has reached the picking position; illustratively, the position detection component 120 includes a first position sensor 121, a second position sensor 122 and a third position sensor 123 (as shown in Figures 2 and 3) arranged in sequence along the first direction, wherein the first direction is, for example, the direction in which the robot moves the material box 200 to the picking port 112, the projections of the first position sensor 121 and the second position sensor 122 on the picking table 111 are located within the projection range of the picking port 112 on the picking table 111, and the third position sensor 123 is located within the projection range of the picking port 112 on the picking table 111. The projection is not within the projection range of the picking port 112 on the picking table 111; and the distance between the second position sensor 122 and the third position sensor 123 is smaller than the following distance between two adjacent robots for transporting the material box 200 to the picking port 112. In this way, when the first position sensor 121 and the second position sensor 122 detect the robot at the same time, and the third position sensor 123 does not detect the robot, it is determined that the robot has arrived at the picking position. At this time, the picker can pick the goods in the material box 200 through the picking port 112, thereby improving the detection accuracy of the robot arriving at the picking position, and thereby improving the safety and reliability of the picker when picking.

[0040] In some embodiments, the first position sensor 121 , the second position sensor 122 and the third position sensor 123 may be photoelectric sensors, wherein the first position sensor 121 and the second position sensor 122 are respectively located at two ends of the picking port 112 .

[0041] The following description will be made by taking as an example that the first position sensor 121 , the second position sensor 122 and the third position sensor 123 are all photoelectric sensors.

[0042] For example, in Figure 6, the robots used to carry the material box 200 include robot 1, robot 2 and robot 3. When robot 2 arrives at the picking port 112, the light emitted by the first position sensor 121 and the second position sensor 122 are blocked by the front and rear ends of robot 2. Since the distance between the third position sensor 123 and the second position sensor 122 is smaller than the following distance between two adjacent robots, and the following distance between two adjacent robots is smaller than the length of the robot's own body, for example, the following distance between two adjacent robots is represented by a, and the distance between the second position sensor 122 and the third position sensor 123 is represented by b, then a is greater than b; therefore, when robot 2 arrives at the picking port 112, robot 3 located in front of robot 2 in the direction of travel has passed the third position sensor 123, and the light emitted by the third position sensor 123 will not be blocked. At this time, it is determined that robot 2 has arrived at the picking position, thereby improving the detection accuracy of determining that the robot has arrived at the picking position, thereby improving the safety and reliability of the picking personnel during picking.

[0043] It should be noted that, when the robot 2 completes picking of the goods and leaves the picking position, when the front end of the robot 2 leaves the picking position and the rear end is located between the first position sensor 121 and the second position sensor 122, the light emitted by the second position sensor 122 is blocked. If at this time, the front end of the robot 1 enters the picking position, the light emitted by the first position sensor 121 is blocked by the robot 1. If the detection result of the light of the first position sensor 121 and the second position sensor 122 being blocked is used for judgment, it will be judged that the robot is in place, but in fact the robot is not in place. Therefore, it is easy to make a misjudgment and the safety of the picker cannot be guaranteed. Therefore, in the present application, by A third position sensor 123 is set on one side of the first position sensor 121, and the distance between the third position sensor 123 and the second position sensor 122 is smaller than the following distance between two adjacent robots. Taking Figure 6 as an example, when the robot 1 behind the robot 2 blocks the first position sensor 121, the robot 2 will inevitably block the second position sensor 122 and the third position sensor 123 at the same time. At this time, the first position sensor 121, the second position sensor 122 and the third position sensor 123 are blocked at the same time, and it is judged that the robot has not reached the picking position. It can be seen that the embodiment of the present application can more accurately judge whether the robot has reached the picking position, thereby ensuring the safety of the picking personnel.

[0044] In some embodiments, please continue to refer to Figure 1, the workbench 110 includes a partition assembly 113, the partition assembly 113 includes a first partition 1131, the first partition 1131 is located at the bottom of the picking table 111 and is connected to the edge of the picking table 111 close to the picker, the first partition 1131 is configured to support the picking table 111, for example, the first partition 1131 supports the side of the picking table 111 close to the picker, and the first position sensor 121, the second position sensor 122 and the third position sensor 123 are arranged on the side wall of the first partition 1131 facing the material box 200.

[0045] It can be understood that in addition to providing a support base for the picking table 111 and an installation base for the position detection component 120, since the first partition 1131 is a plate-like structure, the first partition 1131 can isolate the legs of the pickers and the robot area to avoid the legs of the pickers entering the robot area and causing safety hazards, thereby further ensuring the safety of the pickers through the first partition 1131.

[0046] In some embodiments, the partition assembly 113 also includes a second partition 1132 and a third partition 1133. The second partition 1132 and the third partition 1133 are respectively located on both sides of the first partition 1131 and are connected to the edge of the picking table 111. The second partition 1132 and the third partition 1133 are configured to support the picking table 111 together with the first partition 1131. In addition, the first partition 1131, the second partition 1132 and the third partition 1133 jointly isolate the picking personnel and the robot area to ensure the safety of the picking personnel.

[0047] In addition, please refer to Figure 2, the workbench 110 also includes a support frame 116, and the support frame 116 and the partition assembly 113 are spaced apart in the second direction, wherein the support frame 116 and the partition assembly 113 jointly support the picking table 111, so that the picking table 111 can be stably set horizontally, and a channel for the robot to move is formed between the support frame 116 and the partition assembly 113.

[0048] In the above scheme, the workbench is further provided with a picking display screen or indicator light, for example. The detection result of whether the robot has reached the picking position by the position detection component can be displayed on the picking display screen to prompt the picking personnel through information. For example, when the position detection component detects that the robot has reached the picking position, words such as "robot is in place" can be displayed on the picking display screen, or when the position detection component detects that the robot has not reached the picking position, words such as "robot is not in place" can be displayed on the picking display screen; or, when the position detection component detects that the robot has not reached the picking position, words such as "robot is not in place" can be displayed on the picking display screen; or, the detection result of whether the robot has reached the picking position by the position detection component can be displayed on the picking personnel through an indicator light. For example, when the position detection component detects that the robot has reached the picking position, the indicator light displays green, for example, and when the position detection component detects that the robot has not reached the picking position, the indicator light displays red, for example, so that the picking personnel can intuitively know whether the robot has reached the picking position. The specific settings can be adaptively made according to actual conditions. As long as the detection results can be fed back to the picking personnel, there is no limitation here.

[0049] In some embodiments, please refer to Figures 2 and 4, the picking workstation 100 also includes a light curtain assembly 130 to detect whether an object passes through the picking port 112 through the light curtain assembly 130; illustratively, the light curtain assembly 130 includes a transmitter 131 and a receiver 132, and along the second direction, the transmitter 131 is arranged on one side of the picking port 112, and the receiver 132 is arranged on the other side of the picking port 112, wherein the second direction is perpendicular to the first direction, for example, the transmitter 131 is arranged on the side of the picking port 112 close to the picking personnel, and the receiver 132 is arranged on the side of the picking port 112 away from the picking personnel.

[0050] It can be understood that the light emitted by the transmitter 131 can be received by the receiver, and the light curtain assembly 130 is in a normally open state. When the position detection assembly 120 detects that the robot has not reached the picking position, the light curtain assembly 130 remains in the open state, and the transmitter 131 emits light that can be received by the receiver 132. In this way, a light curtain covering the picking port 112 is formed at the picking port 112. At this time, the picker cannot pick. If an object passes through the picking port 112, the light emitted by the transmitter 131 is blocked, causing the receiver 132 to be unable to receive the light of this part. At this time, the light curtain assembly 130 can issue an alarm through a display screen, indicator light or alarm.

[0051] When the position detection component 120 detects that the robot has arrived at the picking position, the light curtain component 130 is closed, and the picking personnel can now pick, thereby ensuring the safety of the picking personnel.

[0052] It should be noted that when the robot leaves the picking position and the position detection component 120 does not detect the robot at the picking position, the transmitter 131 is turned on again.

[0053] In some embodiments, please continue to refer to Figures 1 and 2. The workbench 110 also includes a baffle assembly 114. The baffle assembly 114 includes a first baffle 1141. The first baffle 1141 is set on the picking table 111 and is connected to the edge of the picking table 111 away from the picking personnel. In this way, the first baffle 1141 increases the protective height of the picking table 111, which can further prevent the picking personnel from climbing over to the robot area, thereby further ensuring the safety of the picking personnel.

[0054] In some embodiments, the baffle assembly 114 also includes two second baffles 1142, which are respectively located on both sides of the first baffle 1141 and connected to the first baffle 1141, and the two second baffles 1142 are respectively connected to the edges of their corresponding picking desks 111, that is, the first baffle 1141 and the two second baffles 1142 are arranged on the circumferential edge of the picking desk 111, that is, the first baffle 1141 and the two second baffles 1142 surround the other edges of the picking desk 111 except for the standing pickers, so as to prevent the pickers from climbing over to the robot area, further ensuring the safety of the pickers.

[0055] In some embodiments, please continue to refer to Figure 1, a picking recess 115 is provided on the side of the picking table 111 close to the picker; that is, a picking recess 115 is provided at the edge of the picking table 111 close to the picker, so that the picker can stand in the picking recess 115 when performing picking operations, so that the picker can be closer to the material box 200, which is convenient for the picker to pick the goods in the material box 200, and the edges on both sides of the picking recess 115 protrude from the picking recess 115 to ensure that the picking table 111 has a larger table area for temporarily placing items, thereby improving the picker experience.

[0056] In some embodiments, the picking recess 115 includes a first connecting segment 1151, a second connecting segment 1152 and a third connecting segment 1153 connected in sequence, the first connecting segment 1151 extends along a first direction, the second connecting segment 1152 and the third connecting segment 1153 are respectively located on both sides of the first connecting segment 1151, the second connecting segment 1152 and the third connecting segment 1153 respectively have an oblique angle of 20° with the first connecting segment 1151, and the second connecting segment 1152 and the third connecting segment 1153 are respectively inclined toward the side away from the first connecting segment 1151, so that the picking recess 115 formed by the first connecting segment 1151, the second connecting segment 1152 and the third connecting segment 1153 are trumpet-shaped from the picking opening 112 toward the picking personnel, so that the picking personnel can enter and exit the picking recess 115 conveniently, thereby improving the experience of the picking personnel.

[0057] Among them, the first partition 1131 is connected to the first connecting section 1151, part of the second partition 1132 is connected to the second connecting section 1152, and part of the third partition 1133 is connected to the third connecting section 1153. In this way, the first partition 1131, the second partition 1132 and the third partition 1133 are connected to form a groove that matches the picking recess 115. In this way, the groove is connected to the picking recess 115 for the picking personnel to stand.

[0058] In some embodiments, the distance between the picking port 112 and the material box 200 below the picking port 112 is 50mm to 55mm, that is, after the robot enters the picking position, the picking height of the material box 200 on the robot from the picking port 112 is 50mm to 55mm. For example, the picking height of the material box 200 entering the picking position from the picking port 112 is 50mm, 52mm, 55mm, etc. In this way, it can be confirmed that when the picker's hand accidentally reaches into the picking port 112, there is enough space to escape, avoiding the risk of the hand being sheared, thereby further ensuring the safety of the picker.

[0059] In some embodiments, the carrying plate on the robot for carrying the material box 200 can be raised and lowered. When the robot reaches the picking position, the carrying plate drives the material box 200 to rise slowly to facilitate picking of the goods in the material box 200.

[0060] An embodiment of the present application also provides a picking system, including the picking workstation provided in the above embodiment.

[0061] The structure and working principle of the picking workstation have been described in detail in the above embodiments and will not be repeated here.

[0062] In some embodiments, the picking system also includes but is not limited to robots, picking display devices, etc., and specific details can be referred to relevant technologies. Among them, the robot is used to transport material boxes to the picking workstation, and the picking display device is used to display information about the picked goods and display the situation of the robot arriving at the picking position, etc.

[0063] The present application provides a picking workstation and a picking system, including a workbench and a position detection component, the workbench has a horizontally arranged picking table, and the picking table has a picking opening that passes through the picking table, so that when the robot carries the material box to the bottom of the picking opening, the picker can pick the goods in the material box through the picking opening. Since the workbench is in the form of a table, it is difficult for the picker to cross the picking table and enter the robot area, thereby reducing the safety problem during picking; in addition, a position detection component is provided under the picking table, and the position detection component includes a first position sensor 121, a second position sensor 122 and a third position sensor 123 that are arranged in sequence along a first direction. The first direction is the moving direction of the robot carrying the material box to the picking opening, and the first position sensor 12 1 and the projections of the second position sensor 122 on the picking table are within the projection range of the picking port on the picking table, and the projection of the third position sensor 123 on the picking table is not within the projection range of the picking port on the picking table; and the distance between the second position sensor 122 and the third position sensor 123 is smaller than the following distance between two adjacent robots for transporting material boxes to the picking port. In this way, when the first position sensor 121 and the second position sensor 122 detect the robot at the same time, but the third position sensor 123 does not detect the robot, it is determined that the robot has arrived at the picking position. At this time, the picker can pick the goods in the material box through the picking port, thereby improving the detection accuracy of the robot arriving at the picking position, and further improving the safety and reliability of the picker when picking.

[0064] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0065] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A picking workstation, characterized in that: include: A workbench, wherein the workbench has a horizontally arranged picking tabletop, and the picking tabletop has a picking opening that passes through the picking tabletop; A position detection component is located below the picking table; the position detection component includes a first position sensor, a second position sensor and a third position sensor which are arranged in sequence and spaced apart in a first direction, and the projections of the first position sensor and the second position sensor on the picking table are located within the projection range of the picking port on the picking table, the projection of the third position sensor on the picking table is not within the projection range of the picking port on the picking table, and the distance between the second position sensor and the third position sensor is smaller than the following distance between two adjacent robots for conveying material boxes to the picking port.

2. The picking workstation according to claim 1, characterized in that: The workbench includes a partition assembly, and the partition assembly is located at the bottom of the picking table; The partition assembly includes a first partition, which is connected to the edge of the picking table close to the picking personnel, the first partition is configured to support the picking table, and the first position sensor, the second position sensor and the third position sensor are arranged on the side wall of the first partition facing the material box.

3. The picking workstation according to claim 2, characterized in that: The partition assembly also includes a second partition and a third partition, which are respectively located on both sides of the first partition and connected to the edge of the picking table. The second partition and the third partition are configured to support the picking table together with the first partition.

4. The picking workstation according to claim 3, characterized in that: A picking recess is provided on one side of the picking table near the picking personnel; The picking recess comprises a first connecting section, a second connecting section and a third connecting section, the first connecting section extends along a first direction, the second connecting section and the third connecting section are respectively located on both sides of the first connecting section, the second connecting section and the third connecting section have an inclined angle with the first connecting section, and the second connecting section and the third connecting section are inclined toward a side close to a picking person; The first partition is connected to the first connecting section, part of the second partition is connected to the second connecting section, and part of the third partition is connected to the third connecting section.

5. The picking workstation according to any one of claims 1 to 4, characterized in that: It also includes a light curtain assembly, which includes a transmitter and a receiver. Along the second direction, the transmitter is arranged on one side of the picking port, and the receiver is arranged on the other side of the picking port. The transmitter is configured to emit light toward the receiver that can be received by the receiver; wherein the second direction and the first direction are perpendicular to each other in a horizontal plane.

6. The picking station according to claim 5, characterized in that: When the first position sensor and the second position sensor detect the robot, and the third position sensor does not detect the robot, it is determined that the robot has reached the picking position of the picking port, and the transmitter is turned off.

7. The picking workstation according to any one of claims 1 to 4, characterized in that: It also includes a baffle assembly, which includes a first baffle. The first baffle is arranged on the picking table and connected to the edge of the picking table on a side away from the picking personnel.

8. The picking workstation according to claim 7, characterized in that: The baffle assembly also includes two second baffles, which are respectively located on both sides of the first baffle and connected to the first baffle, and the two second baffles are respectively connected to the edges of the corresponding picking tabletops.

9. The picking workstation according to any one of claims 1 to 4, characterized in that: The distance between the picking port and the material box below the picking port is 50 mm to 55 mm; And / or, the first position sensor, the second position sensor and the third position sensor are all photoelectric sensors.

10. A picking system, characterized in that: include: robot; and A picking workstation as claimed in any one of claims 1 to 9; Wherein, the robot is used to transport the material box to the picking port.

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