WO2025220193A1 - 容器開閉装置、及び搬送装置 - Google Patents
容器開閉装置、及び搬送装置Info
- Publication number
- WO2025220193A1 WO2025220193A1 PCT/JP2024/015462 JP2024015462W WO2025220193A1 WO 2025220193 A1 WO2025220193 A1 WO 2025220193A1 JP 2024015462 W JP2024015462 W JP 2024015462W WO 2025220193 A1 WO2025220193 A1 WO 2025220193A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- positional deviation
- unit
- deviation amount
- support
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/34—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H10P72/3406—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading involving removal of lid, door or cover
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/06—Apparatus for monitoring, sorting, marking, testing or measuring
- H10P72/0606—Position monitoring, e.g. misposition detection or presence detection
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
- H10P72/19—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers
- H10P72/1908—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers specially adapted for containing substrates other than wafers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
- H10P72/19—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers
- H10P72/1921—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers characterised by substrate supports
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
Definitions
- the present invention relates to a container opening/closing device for opening and closing a container capable of holding an object to be transported, and a transport device for transporting the object to a container provided in the container opening/closing device.
- a transport technology that uses an industrial transport robot installed in a transport device to transport objects between a container opening/closing device (load port) on which a container containing the object, such as a substrate (e.g., wafer, glass substrate, etc.), is placed and a processing device or load lock chamber that processes the object.
- a transport robot which serves as a transport mechanism installed in a transport device, can remove the object from the container in which it is stored and transport it to the processing device where it is processed, while also removing the object from the processing device that processes it and placing it in a container that can accommodate it.
- PLP panel-level packaging
- PLP is a method for manufacturing multiple semiconductor packages at once by arranging a large number of chips on a rectangular panel, and various industrial robots are used in semiconductor package production lines using PLP.
- PLP includes a process for coating (sealing) the top surface of the panel on which a large number of chips are mounted with resin, and panels handled on semiconductor package production lines using PLP are prone to significant warping in the vertical direction (upward and downward warping, which includes bending and distortion).
- a FOUP Front Opening Unified Pod
- substrates which is a container for transported objects (hereinafter referred to as substrates)
- the vertical spacing between each pair of support parts is becoming increasingly narrower to improve substrate storage efficiency.
- the vertical spacing between the support parts is narrow, if the container (FOUP) that can hold substrates is itself in an abnormal state (for example, if the height position of either the first or second support part of a specific pair is deviated from the reference height position), there is a risk that the substrate held by the robot hand will collide with the support part of the FOUP when the robot hand is inserted, or that the robot hand will collide with the substrate supported by the support part of the FOUP.
- a container opening/closing device for opening and closing a container having a plurality of pairs of first and second support parts spaced apart in the horizontal direction and spaced apart in the vertical direction perpendicular to the horizontal direction, the device comprising: a holding part for holding a lid of the container; a drive part for moving the holding part at least in the vertical direction; a detection part provided in the holding part for detecting the height positions of the first support part and the second support part in the vertical direction by the movement of the holding part; and a calculation part for calculating a first positional deviation amount of the first support part and a second positional deviation amount of the second support part, the first positional deviation amount being determined by the first support part.
- the container opening/closing device is characterized in that the first positional deviation is the amount of positional deviation between the detected detection height position of the holding part and the predetermined standard height position of the first support part, and the second positional deviation is the amount of positional deviation between the detected detection height position of the second support part and the predetermined standard height position of the second support part, the first support part and the second support part each have a main body part that supports the transported object and a measured part provided at the tip of the main body part, and the detection part detects the lower end positions of the measured parts of the first support part and the second support part in the up-down direction as the detection height positions of the first support part and the second support part, respectively.
- the present invention provides a conveying device that conveys an object to a container provided in the above-mentioned container opening/closing device, characterized in that the conveying device includes a determination unit that determines whether the height positions of the first support unit and the second support unit in the vertical direction are abnormal based on the detection results of the detection unit or the calculation results of the calculation unit.
- a transport device that transports an object to a container provided in the above-mentioned container opening/closing device, comprising: a transport mechanism having a hand capable of holding the object; a selection unit that selects one of the first positional deviation amount and the second positional deviation amount calculated by the calculation unit of the container opening/closing device as an insertion height correction amount; a derivation unit that derives the insertion height at which the hand is inserted into the container based on the selected insertion height correction amount; a lifting operation implementation unit that lifts and lowers the hand to the insertion height calculated by the derivation unit; and an insertion operation implementation unit that inserts the hand into the container at the derived insertion height, wherein the selection unit selects the insertion height correction amount depending on the operation type of the transport mechanism.
- a transport system comprising at least a container opening/closing device for opening and closing a container in which a pair of first and second support parts are spaced apart in the horizontal direction and spaced apart in the vertical direction perpendicular to the horizontal direction; a transport device equipped with a transport mechanism having a hand capable of holding the transported object and transporting the transported object to a container provided on the container opening/closing device; and a control unit for controlling the operation of the container opening/closing device and the transport device, wherein the container opening/closing device comprises a holding part for holding the lid of the container, a drive part for moving the holding part at least in the vertical direction, and a detection part provided on the holding part for detecting the height positions of the first support part and the second support part in the vertical direction by movement of the holding part, and the control unit detects the height of the first support part at a predetermined specified height, a calculation unit that calculates a first positional
- the present invention provides a container opening/closing device, conveying device, and conveying system that can accurately detect the height position of a support part provided on a container using a container opening/closing device for opening and closing a container.
- FIG. 1 is a perspective view illustrating an entire conveyance system to which a container opening/closing device and a conveyance device according to an embodiment of the present invention are applied.
- FIG. 2 is a block diagram of the electrical configuration of the transport system shown in FIG. 1 .
- FIG. 2 is a perspective view illustrating the configuration of a container opening/closing device used in the conveyance system shown in FIG. 1 .
- 4 is a front view illustrating the inside of a container placed on the container opening/closing device shown in FIG. 3.
- FIG. 5 is a schematic diagram illustrating an abnormal state of a pair of first and second support portions provided in the container shown in FIG. 4.
- FIG. 4 is an explanatory diagram showing an example of a reference position information table used in the container opening/closing device shown in FIG. 3.
- FIG. 4 is an explanatory diagram showing an example of a detection position information table used in the container opening/closing device shown in FIG. 3.
- FIG. 4 is an explanatory diagram showing an example of a reference insertion height information table used in the transport device shown in FIG. 3.
- FIG. 10 is a flowchart of a process for transporting an object to a container installed in the container opening/closing device by the transport device shown in FIG. 1 .
- 10 is a schematic diagram illustrating a correction process of the hand when the operation type shown in FIG. 9 is a carry-in operation.
- FIG. 10 is a schematic diagram illustrating a correction process for the hand when the operation type shown in FIG. 9 is a carry-out operation.
- FIG. 10 is a schematic diagram illustrating a correction process of the hand when the operation type shown in FIG. 9 is a carry-out operation.
- the conveying system 20 includes the conveying device 100 that conveys the transported object W, the container opening/closing device 50 arranged on one side (e.g., the front side) of the conveying device 100, a processing device 60 arranged on the other side (e.g., the rear side) of the conveying device 100, and a control unit (see explanation below) that controls the operation of the container opening/closing device 50 and the conveying device 100.
- the conveying device 100 is, for example, an EFEM (Equipment Front End Module).
- the container opening/closing device 50 is a load port device on which a container H (e.g., a FOUP) capable of accommodating the transported object W is placed and which opens and closes the lid (not shown) of the container H.
- the processing device 60 is a device for processing the transported object W.
- the conveying device 100 includes a housing 110, a conveying mechanism 120 provided inside the housing 110 and configured to convey a conveyed object W, a drive unit 130 for driving the movement of the conveying mechanism 120, and a control unit 140 for controlling the conveying operation of the conveying mechanism 120.
- the housing 110 houses the conveying mechanism 120, the drive unit 130, and the control unit 140, and is connected to the container opening/closing device 50 and the processing device 60.
- the conveying mechanism 120 is configured to be movable inside the housing 110.
- the conveying mechanism 120 e.g., a conveying robot
- the conveying mechanism 120 has a hand 122 capable of holding the conveyed object W, and removes the conveyed object W from a container H and transports it to the processing device 60 through the inside of the housing 110 (shown in FIG. 1).
- the processing device 60 processes the conveyed object W transported by the conveying mechanism 120.
- the conveying mechanism 120 transports the conveyed object W removed from the processing device 60 to the container H through the inside of the housing 110.
- the drive unit 130 drives the movement (including lifting and lowering) of the transport mechanism 120.
- the control unit 140 controls the transport operation of the transport mechanism 120.
- the control unit 140 also performs the functions of a selection unit 142, a derivation unit 144, a storage unit 146, a determination unit 147, a lifting operation execution unit 148, and an insertion operation execution unit 149, which will be described below.
- the transported object W is, for example, a glass substrate used in PLP, and is housed in a container H.
- the container H has multiple pairs of first support members S1 and second support members S2 spaced apart in the horizontal direction (e.g., the left-right direction X), with multiple pairs spaced apart in the up-down direction Z, which is perpendicular to the horizontal direction.
- the pairs of first support members S1 and second support members S2 protrude horizontally (e.g., the left-right direction X) from the inner surfaces of opposing sides of the container H, and can support the transported object W on opposing sides of the container H.
- one side of the container H has multiple first support members S1 arranged along the up-down direction Z, and a gap G is left between two adjacent first support members S1 to form a space capable of housing the transported object W.
- the other side of the container H has multiple second support members S2 arranged along the vertical direction Z, and a space capable of accommodating the transported object W is formed with a gap G between two adjacent second support members S2.
- the container H to accommodate multiple transported objects W inside (at each gap G) by supporting the transported objects W with multiple pairs of first support members S1 and second support members S2 arranged at a predetermined gap G in the vertical direction Z. That is, the transported object W is supported by each pair of first support member S1 and second support member S2 (e.g., the second first support member S1 and second support member S2 from the top) and is accommodated in the gap G above the first support member S1 and second support member S2 (e.g., the space between the first and second first support member S1 and second support member S2 from the top).
- first support member S1 and second support member S2 e.g., the second first support member S1 and second support member S2 from the top
- the container opening/closing device 50 includes a holding unit 51 that holds the lid (not shown) of the container H, a drive unit 52 that moves the holding unit 51 at least in the vertical direction Z, a detection unit 53 provided on the holding unit 51 that detects the height positions of the first support unit S1 and the second support unit S2 in the vertical direction Z by moving the holding unit 51, a control unit 54 for controlling the operation of the container opening/closing device 50 (e.g., movement of the holding unit 51 by driving the drive unit 52), a mounting table 55 on which the container H is placed, and a support body 56 that supports the mounting table 55.
- the holding unit 51 is a port door that engages with the lid of the container H.
- the drive unit 52 is a unit consisting of, for example, a motor and a ball screw, and the general structure is housed inside the support body 56, with a portion of the structure protruding into the interior of the housing 110 of the conveying device 100 to connect with the holding unit 51.
- the control unit 54 controls the driving of the drive unit 52 to move the holding unit 51 in the vertical direction Z. This allows the container opening/closing device 50 to open the lid of the container H.
- the transport mechanism 120 can transport the transported object W from the container H to the interior of the casing 110.
- the transport mechanism 120 can transport the transported object W from the interior of the casing 110 to the container H.
- the holding unit 51 moves downward while engaged with the lid of the container H, moving the lid of the container H downward and exposing multiple pairs of first support members S1 and second support members S2 provided inside the container H so that they directly face the interior of the casing 110, in order from top to bottom.
- control portion 54 that controls the operation of the container opening/closing device 50 and the control portion 140 that controls the operation of the above-mentioned transport device 100 are realized by separate control units, but they may also be realized by a single control unit.
- control portion 140 which is a control unit provided in the transport device 100 of the transport system 20
- a control signal must be transmitted from the control portion 140 of the transport device 100 to the container opening/closing device 50 (the reverse transmission is also possible).
- the detection unit 53 is, for example, a combination of a reflective sensor 53a and a camera 53b, and is provided on the upper edge of the holding unit 51 and faces the container H toward the rear of the container opening/closing device 50.
- the detection unit 53 (reflective sensor 53a) detects the height position of each first support unit S1 and second support unit S2.
- the detection unit 53 can move in the vertical direction Z together with the holding unit 51. Therefore, in this embodiment, the container opening/closing device 50 uses two sets of detection units 53 to detect the height positions of the multiple first support units S1 and multiple second support units S2, respectively, based on the height position of the mounting table 55.
- the lid of the container H is moved downward, exposing the multiple pairs of first support members S1 and second support members S2 from top to bottom so that they directly face the interior of the housing 110.
- the detection unit 53 moves from top to bottom in the vertical direction Z to detect the height positions of each of the multiple pairs of first support members S1 and second support members S2 of the container H from top to bottom. That is, as the holding unit 51 moves, the detection unit 53 moves from top to bottom in the vertical direction Z to detect the height positions of the upper pair of first support members S1 and second support members S2, and then detects the height positions of the other lower pair of first support members S1 and second support members S2.
- This detection process is preferably performed before the conveying device 100 conveys the conveyed object W.
- the control unit 54 also performs the functions of a calculation unit 54a and a memory unit 54c, which will be described later.
- the height positions of the multiple pairs of first support portions S1 and second support portions S2 detected here are transmitted to the control unit 140 of the conveying device 100, as described below, and can be used as a condition for determining whether the multiple pairs of first support portions S1 and second support portions S2 of the container H are in an abnormal state.
- the results of calculation of the positional deviation amounts of the multiple pairs of first support portions S1 and second support portions S2 of the container H by the container opening/closing device 50 are transmitted to the control unit 140 of the conveying device 100, and can be used as a control condition for the conveying means of the conveying device 100, as described below.
- the 1 and 2 includes at least one mounting table and is capable of supporting at least one object W during the processing of the object W.
- the type of processing device 60 can be selected depending on the process for processing the object W (for example, processes required for semiconductor manufacturing, such as ion implantation and etching). Furthermore, by opening the door of the processing device 60, the object W inside the processing device 60 faces the inside of the housing 110, and the transport mechanism 120 can transport the object W from inside the processing device 60 to inside the housing 110. Similarly, the transport mechanism 120 can also transport the object W from inside the housing 110 to inside the processing device 60.
- a load lock chamber may be further installed between the transport device 100 and the processing device 60.
- the housing 110 of the conveying device 100 includes, as an example, a frame 112, a wall 114 for covering the frame 112, a moving body 116 for moving the conveying mechanism 120, and a guide structure 118 for guiding the movement of the moving body 116.
- the frame 112 is installed as a frame for the housing 110.
- the wall 114 is provided on the frame 112 and forms the internal space of the housing 110.
- the guide structure 118 is, for example, a slide rail structure, a conveyor drive device, etc., and is provided in the internal space of the housing 110.
- the moving body 116 is provided on the guide structure 118 in the internal space of the housing 110, and is installed so as to be freely movable within the housing 110 by the guide structure 118.
- the moving body 116 is attached to the guide structure 118 for guiding movement in the left-right direction X, and is enabled to move in the left-right direction X within the housing 110 by the guide structure 118.
- the wall 114 also has an opening OP (shown in FIG. 1 ) for communication with the container opening/closing device 50 and an opening for communication with the processing device 60.
- the opening OP can communicate with the interior of a container H placed on the mounting table 55.
- the holder 51 holds the lid of the container H through the opening OP and retracts the lid into the housing 110, thereby communicating the interior of the container H with the internal space of the housing 110.
- the transport mechanism 120 provided inside the housing 110 can transport the transported object W from the container opening/closing device 50 to the processing device 60 or from the processing device 60 to the container opening/closing device 50 through these openings. That is, the transport mechanism 120 moves by the moving body 116 to the door position of the container opening/closing device 50 (e.g., the position of the holder 51), allowing the transported object W to be transferred between the container H and the interior of the housing 110. Similarly, the transport mechanism 120 moves to the door position of the processing device 60 by the moving body 116, enabling the transfer of the transported object W between the processing device 60 and the interior of the housing 110. As a result, the transport device 100 can transport the transported object W between the container H placed on the container opening/closing device 50 and the processing device 60 inside the housing 110 by the transport mechanism 120.
- the transport mechanism 120 is, for example, a transport robot, and includes a base 124, an arm 126 attached to the upper end of the base 124, a hand 122 attached to the tip of the arm 126 and capable of holding the transported object W, and a transport drive unit 128 that drives the arm 126 to move the hand 122 in the horizontal direction (left-right direction X and front-back direction Y) and up-down direction Z.
- the base 124 is attached to a movable body 116 provided inside the housing 110, and is installed so as to be movable by the movable body 116.
- the base 124 is movable (slidable) in the left-right direction X by the movable body 116.
- the arm 126 is attached to the upper end of the base 124 so as to be rotatable within a horizontal plane (an imaginary horizontal plane formed by the left-right direction X and the front-back direction Y) relative to the base 124, and so as to be able to move up and down in the up-down direction Z.
- the hand 122 is a robot hand attached to the tip of the arm 126, and can move as the arm 126 rotates within a horizontal plane and moves up and down in the vertical direction Z.
- the transfer drive unit 128 is, for example, a motor or transmission mechanism built into the base 124, and applies a driving force to the arm 126 to move the hand 122.
- the transfer robot serving as the transfer mechanism 120 moves between the container opening/closing device 50 and the processing device 60, on which the container H is placed, using the moving body 116, while holding the object W to be transferred using the hand 122.
- the transfer drive unit 128 drives the arm 126, thereby freely moving the hand 122 (up and down, rotating, back and forth), and transferring the object W using the hand 122.
- the hand 122 robot hand holding the transported object W enters, while holding the transported object W, into a gap G defined above a specific pair of first support portions S1 and second support portions S2 among the multiple pairs of first support portions S1 and second support portions S2 of the container H, and then moves downward to support the transported object W on the first support portion S1 and second support portion S2, and then moves away from the container H.
- the hand 122 (robot hand) enters the gap G defined below a specific pair of first support portions S1 and second support portions S2 among the multiple pairs of first support portions S1 and second support portions S2 of the container H, then moves upward to lift the transported object W supported by the first support portion S1 and second support portion S2, and then moves away from the container H while holding the transported object W.
- the spacing (pitch) in the vertical direction Z between the multiple pairs of first support members S1 and second support members S2 of the container H is narrow, if the container H itself, which can accommodate the transported object W, is in an abnormal state (for example, if the height position of one of the first support members S1 and second support members S2 of a specific pair is deviated from a reference height position), when the hand 122 of the transport device 120 is inserted, the transported object W held by the hand 122 may collide with the first support members S1 and second support members S2 provided on the container H, or the hand 122 may collide with the transported object W supported by the first support members S1 and second support members S2 provided on the container H.
- the container opening/closing device 50 detects the respective height positions of the first support members S1 and second support members S2 provided on the container H.
- the transport device 100 that transports the transported object W is required to reflect the height positions of the first support part S1 and the second support part S2 detected by the container opening/closing device 50, and the results of abnormality determination using the height positions of the first support part S1 and the second support part S2 detected by the container opening/closing device 50, in controlling the transport operation (for example, by stopping the operation of the transport device 100, or correcting the insertion height of the hand 122 of the transport mechanism 120 of the transport device 100 into the container H).
- this embodiment will be described using as an example a pair of left and right support members S1 and S2 provided on a container H, as shown in FIG. 5.
- the first support member S1 has a specified height position PL
- the second support member S2 has a specified height position PR (the positions indicated by the dashed lines in FIG. 5).
- the specified height position PL of the first support member S1 and the specified height position PR of the second support member S2 may be located at the same horizontal height in the vertical direction Z, or at different horizontal heights. Even if the specified height positions PL and PR of the pair of left and right support members S1 and S2 are located at different horizontal heights, they still correspond to each other on the left and right to form the same storage space (gap G).
- the first support member S1 is located above the specified height position PL in the vertical direction Z
- the second support member S2 is located below the specified height position PR in the vertical direction Z. Therefore, when the conveying mechanism 120 transports the transported object W into the same storage space (gap G) formed by a pair of first support members S1 and second support members S2 on the left and right sides of the container H, if the hand 122 of the conveying mechanism 120 shown in Figure 1 is inserted into the container H at an insertion height of the hand 122 (for example, a position a predetermined distance above the specified height positions PL, PR) determined by reference to the specified height position PL of the paired first support member S1 and the specified height position PR of the paired second support member S2, there is a risk that the transported object (not shown) held by the hand 122 will collide with the first support member S1, which is located above the specified height position PL.
- an insertion height of the hand 122 for example, a position a predetermined distance above the specified height positions PL,
- the transport mechanism 120 transports the transported object W from the same storage space (gap G) formed by a pair of first support members S1 and second support members S2 on the left and right sides of the container H
- the hand 122 of the transport mechanism 120 shown in Figure 1 is inserted into the container H at an insertion height of the hand 122 (for example, a position a predetermined distance below the specified height positions PL, PR) determined by reference to the specified height position PL of the paired first support member S1 and the specified height position PR of the paired second support member S2
- an insertion height of the hand 122 for example, a position a predetermined distance below the specified height positions PL, PR
- the container opening/closing device 50 detects the respective height positions of the first support member S1 and the second support member S2 provided on the container H, and calculates the amount of positional deviation between the detected height positions of the first support member S1 and the second support member S2 and the specified height positions PL and PR as a first positional deviation amount D1 of the first support member S1 and a second positional deviation amount D2 of the second support member S2.
- the transport device 100 transporting the transported object W is required to reflect the respective positional deviation amounts of the first support member S1 and the second support member S2 calculated by the container opening/closing device 50 and the result of an abnormality determination using the respective positional deviation amounts of the first support member S1 and the second support member S2 calculated by the container opening/closing device 50 in controlling the transport operation (for example, by stopping the operation of the transport device 100 or correcting the insertion height of the hand 122 of the transport mechanism 120 of the transport device 100 into the container H).
- the detection unit 53 of the container opening/closing device 50 moves downward in the vertical direction Z along with the movement of the holding unit 51, and can detect the respective height positions of the pair of first support members S1 and second support members S2 exposed from the container H.
- the first support member S1 is located higher in the vertical direction Z than the second support member S2, so the detection unit 53 first detects the detection height position P1 of the first support member S1, and then detects the detection height position P2 of the second support member S2.
- the first support member S1 and the second support member S2 each have a main body member 210 that supports the transported object W (shown in FIG.
- the measured portion 212 is a member that limits the movement of the transported object W in the forward/backward direction Y, installed on the main body member 210.
- the measurement target portion 212 further includes a measurement target surface 2121 whose lower portion in the up-down direction Z is horizontally chamfered.
- the detection target portion 212 has a generally D-shaped configuration when viewed from the front-rear direction Y.
- the detection unit 53 detects the lower end positions in the up-down direction Z of the measurement target portion 212 of each of the first support portion S1 and the second support portion S2 as the respective detection height positions of the first support portion S1 and the second support portion S2.
- the lower end positions can be treated as the detection height positions P1 and P2 of the first support portion S1 and the second support portion S2, respectively.
- the detection unit 53 detects the measurement target surface 2121 of each of the measurement target portion 212 of each of the first support portion S1 and the second support portion S2 as the lower end positions.
- the positions of the measurement target surface 2121 can be treated as the detection height positions P1 and P2 of the first support portion S1 and the second support portion S2, respectively.
- a portion of the transported object W may protrude from the upper end of the measurement portion 212 of at least one of the first support portion S1 and the second support portion S2.
- the protruding portion of the transported object W may be mistakenly detected as the measurement portion 212 of the first support portion S1 and/or the second support portion S2, which may prevent accurate detection height positions P1 and P2 of the first support portion S1 and the second support portion S2 from being obtained.
- the control unit 54 also performs the function of a calculation unit 54a.
- the calculation unit 54a calculates a first positional deviation amount D1 of the first support member S1 and a second positional deviation amount D2 (shown in FIG. 5) of the second support member S2.
- the first positional deviation amount D1 is the positional deviation amount between the detected detection height position P1 of the first support member S1 and the predetermined specified height position PL of the first support member S1
- the second positional deviation amount D2 is the positional deviation amount between the detected detection height position P2 of the second support member S2 and the predetermined specified height position PR of the second support member S2.
- the conveying device 100 also includes a determination unit 147 that determines whether the height positions of the first support member S1 and the second support member S2 in the vertical direction Z are abnormal based on the detection result of the detection unit 53 or the calculation result of the calculation unit 54a.
- the determination unit 147 determines the height position of the first support part S1 in the vertical direction Z and the height position of the second support part S2 in the vertical direction Z as the state of the first support part S1 and the second support part S2 (as described below), but the present invention is not limited to this.
- the control unit 54 also functions as a memory unit 54c.
- the memory unit 54c stores, in a reference position information table 54c1, the predetermined specified height positions PL, PR of multiple pairs of first support members S1 and second support members S2 of a container H placed on the container opening/closing device 50.
- the memory unit 54c stores, in the reference position information table 54c1, the specified height positions PL1, PL2, ... of each of the multiple pairs of first support members S1 provided on the container H and the specified height positions PR1, PR2, ... of each of the multiple pairs of second support members S2 associated with the numbers of the first support members S1 and second support members S2 from top to bottom.
- the predetermined specified height positions of the multiple pairs of first support members S1 and second support members S2 stored in the reference position information table 54c1 may be obtained by the detection unit 53 or may be obtained from the provider of the container H.
- the specified height positions of the pair of left and right first support portions S1 and second support portions S2 are the same height position. That is, the specified height position PL1 of the first support portion S1 and the specified height position PR1 of the second support portion S2, which are positioned from top to bottom, are the same height position, and the specified height position PL2 of the second support portion S1 and the specified height position PR2 of the second support portion S2 are the same height position.
- the memory unit 54c also stores in the detection position information table 54c2 the detected detection height positions P1, P2 of the multiple pairs of first support portions S1 and second support portions S2 of the container H placed on the container opening/closing device 50.
- the container opening/closing device 50 opens the lid of the container H using the holding portion 51, and simultaneously detects the respective height positions of the multiple pairs of first support portions S1 and second support portions S2 exposed from the container H using the detection unit 53. Therefore, the memory unit 54c stores in the detection position information table 54c2 the respective detection height positions P11, P12, ... of the multiple pairs of first support portions S1 provided on the container H and the respective detection height positions P21, P22, ...
- the storage unit 54c can also store the first positional deviation amounts D11, D12, ... of the first support member S1 and the second positional deviation amounts D21, D22, ... of the second support member S2 calculated by the calculation unit 54a in the detected position information table 54c2 in association with the numbers of the first support member S1 and the second support member S2 from top to bottom.
- the determination unit 147 determines whether the height positions of the first support member S1 and the second support member S2 are abnormal (e.g., whether the height positions of the first support member S1 and the second support member S2 are misaligned). If the control unit 140, which realizes the function of the determination unit 147, is provided in the transport device 100, the determination result can also be stored in the storage unit 146 of the transport device 100 in association with the numbers of the first support member S1 and the second support member S2 from top to bottom. However, in other embodiments not shown, the function of the determination unit 147 described above can also be realized by the control unit 54 of the container opening/closing device 50. In this case, the results of the presence or absence of an abnormality can be first stored together in the detection position information table 54c2 of the memory unit 54c of the container opening/closing device 50.
- the calculation unit 54a calculates the distance between the detection height position P1 of the first support member S1 or the detection height position P2 of the second support member S2 and the specified height positions PL, PR in the vertical direction Z as the first positional deviation amount D1 or the second positional deviation amount D2.
- the calculation unit 54a calculates the first positional deviation amount D1 or the second positional deviation amount D2 as a positive value when the detection height position P1 of the first support member S1 or the detection height position P2 of the second support member S2 is higher than the specified height positions PL, PR in the vertical direction Z, and calculates the first positional deviation amount D1 or the second positional deviation amount D2 as a negative value when the detection height position P1 of the first support member S1 or the detection height position P2 of the second support member S2 is lower than the specified height positions PL, PR in the vertical direction Z.
- the determination unit 147 determines that the height position of the first support member S1 or the height position of the second support member S2 is abnormal when the absolute value of the first positional deviation amount D1 or the absolute value of the second positional deviation amount D2 is greater than a first threshold value (e.g., 1.5 mm).
- a first threshold value e.g. 1.5 mm
- the determination unit 147 may determine that the height position of the first support portion S1 or the height position of the second support portion S2 is abnormal if the first positional deviation amount D1 or the second positional deviation amount D2 is greater than a first threshold value (e.g., +1.5 mm) or less than the first threshold value (e.g., ⁇ 1.5 mm).
- the calculation unit 54a calculates the difference between the detection height position P1 of the first support portion S1 or the detection height position P2 of the second support portion S2, and the determination unit 147 determines that the height position of the first support portion S1 or the height position of the second support portion S2 is abnormal if the absolute value of the difference between the detection height position P1 of the first support portion S1 and the detection height position P2 of the second support portion S2 is greater than a second threshold value (e.g., 3 mm).
- the first positional deviation amount D1 and the second positional deviation amount D2 may be stored in the detected position information table 54c2 (shown in FIG.
- the determination results are stored in the memory unit 146 in association with numbers from top to bottom.
- the determination unit 147 determines that the height position of the first support portion S1 in the state of the first support portion S1, or the height position of the second support portion S2 in the state of the second support portion S2, is abnormal if the distance G between the first support portion S1 (e.g., the first first support portion S1 from top to bottom) and another first support portion S1 (e.g., the second first support portion S1 from top to bottom) arranged next to it in the vertical direction Z exceeds a first set value (a preset pitch), or if the distance G between the second support portion S2 (e.g., the first second support portion S2 from top to bottom) and another second support portion S2 (e.g., the second second support portion S2 from top to bottom) arranged next to it in the vertical direction Z exceeds the first set value (a preset pitch).
- a preset pitch a first set value
- the determination results are stored in the memory unit 146 in association with numbers from top to bottom.
- the container opening/closing device 50 for opening and closing the container H moves the holding unit 51 that holds the lid of the container H.
- the detection unit 53 provided on the holding unit 51 detects the height positions in the vertical direction Z of the first support unit S1 and the second support unit S2 (the lower end positions in the vertical direction of the measured portion of each support unit), and the calculation unit 54a calculates the positional deviation amounts (first positional deviation amount D1, second positional deviation amount D2) between the detected height positions P1, P2 of those support units (first support unit S1 and second support unit S2) and the predetermined specified height positions PL, PR.
- This allows the container opening/closing device 50 for opening and closing the container H to accurately detect the height positions of the support units provided on the container H.
- the determination unit 147 of the conveying device 100 determines whether the height positions in the vertical direction Z of the first support unit S1 and the second support unit S2 are abnormal based on the detection results of the detection unit 53 or the calculation results of the calculation unit 54a. This reflects the results in the control of the transport operation of the transport device 100, which transports the transported object W to the container H placed on the container opening/closing device 50 (for example, by stopping the operation of the transport device 100 or correcting the insertion height of the hand 122 of the transport mechanism 120 of the transport device 100 into the container H), preventing the transported object W held by the hand 122 of the transport mechanism 120 of the transport device 100 from colliding with the first support portion S1 and second support portion S2 provided on the container H, or preventing the hand 122 from colliding with the transported object W supported by the first support portion S1 and second support portion S2 provided on the container H.
- the transport device 100 stops the transport operation of the transported object W by the transport device 100, and if the determination unit 147 determines that there is no abnormality, corrects the insertion height of the hand 122 into the container H.
- the hand 122 when the transported object W is transported out of the container H by the hand 122 of the transport mechanism 120, the hand 122 is inserted into the container H below the first support member S1 and second support member S2 of the specific pair.
- the first support member S1 or the second support member S2 of the specific pair of the hand 122 is positioned below the specified height positions PL and PR, there is a risk that the hand 122 will collide with the transported object W supported by the first support member S1 and the second support member S2, so it is necessary to correct the insertion height at which the hand 122 is inserted into the container H.
- the insertion height at which the hand 122 is inserted into the container H varies (above or below the first support member S1 and the second support member S2) depending on the operation type of the transport mechanism 120 (a loading operation for loading the transported object W into the container H, or a loading operation for unloading the transported object W from the container H). Therefore, when correcting the insertion height at which the hand 122 is inserted into the container H, it is necessary to select the insertion height correction amount depending on the operation type of the transport mechanism 120.
- the transport device 100 which transports a transported object W to a container H placed on the container opening/closing device 50, includes a selection unit 142 that selects one of the first positional deviation amount D1 and the second positional deviation amount D2 calculated by the calculation unit 54a of the container opening/closing device 50 as an insertion height correction amount, a derivation unit 144 that derives the insertion height at which the hand 122 is inserted into the container H based on the insertion height correction amount selected by the selection unit 142, a lifting operation execution unit 148 that raises and lowers the hand 122 to the insertion height calculated by the derivation unit 144, and an insertion operation execution unit 149 that inserts the hand 122 into the container H at the insertion height calculated by the derivation unit 144.
- the insertion operation execution unit 149 may be configured to be able to perform an operation to remove the hand 122 from the container H.
- the selection unit 142 selects the insertion height correction amount depending on the operation type of the transport mechanism 120.
- the storage unit 146 of the transport device 100 may store in advance in a reference insertion height information table 146a the insertion height of the hand 122 that serves as a reference for multiple pairs of first support members S1 and second support members S2 of the container H. For example, for each pair of first support members S1 and second support members S2 from top to bottom, the reference insertion height when the hand 122 carries the transported object W into the container H is the insertion height IN1, IN2, ...
- the transport device 100 determines whether or not the insertion height needs to be corrected based on the state (whether there is an abnormality) of the first support member S1 and second support member S2 of the specific pair of containers H determined by the aforementioned determination unit 147.
- the correction of the transport operation of the transported object W by the transport device 100 includes the following steps. First, in the transport operation type determination step ST0, the operation type of the transport mechanism 120 is determined. The determination of the operation type of the transport mechanism 120 may be performed by the control unit 140 of the transport device 100. Next, if the transport operation type determination step ST0 determines that the operation is a carry-in operation, in the correction value selection step ST11, one of the first positional deviation amount D1 and the second positional deviation amount D2 calculated by the calculation unit 54a is selected as the insertion height correction amount. The selection of the insertion height correction amount may be performed by the selection unit 142.
- the insertion height of the hand 122 into the container H is derived based on the selected insertion height correction amount, and the hand 122 is raised or lowered to the derived insertion height.
- the derivation of the insertion height may be performed by the derivation unit 144.
- the raising and lowering of the hand 122 may be performed by the raising and lowering operation execution unit 148.
- the transfer start process ST13 the hand 122, which is positioned at the calculated insertion height, is inserted into the container H (for example, by moving the arm 126 in the forward/backward direction Y).
- the insertion of the hand 122 into the container H may be performed by the insertion operation execution unit 148.
- the hand 122 inserted into the container H is lowered below the specific pair of first support member S1 and second support member S2, and the transported object W held by the hand 122 is supported by the specific pair of first support member S1 and second support member S2.
- the lowering of the hand 122 may be performed by the lifting operation execution unit 148.
- the hand 122 is removed from the container H, completing the transport of the transported object W to the specific pair of first support member S1 and second support member S2 of the container H.
- the removal of the hand 122 from the container H may be performed by the insertion operation execution unit 148.
- the determination unit 147 determines whether there is an abnormality in the container H. If the determination unit 147 determines that there is no abnormality in the container H, the conveying operation type determination process ST0 is performed.
- the memory unit 146 stores the first positional deviation amount D1 of each first support portion S1 and the second positional deviation amount D2 of each second support portion S2, and the control unit 140 obtains information necessary for correcting the conveying operation from the memory unit 146 when the conveying device 100 performs conveying.
- the calculator 54a calculates the first positional deviation amount D1 or the second positional deviation amount D2 as a positive value when the detection height position P1 of the first support member S1 or the detection height position P2 of the second support member S2 is higher than the specified height positions PL, PR in the vertical direction Z, and calculates the first positional deviation amount D1 or the second positional deviation amount D2 as a negative value when the detection height position P1 of the first support member S1 or the detection height position P2 of the second support member S2 is lower than the specified height positions PL, PR in the vertical direction Z. That is, when the calculator 54a calculates the first positional deviation amounts D11, D12, ...
- each of the first positional deviation amounts D11, D12, ... and the second positional deviation amounts D21, D22, ... may be assigned a positive or negative value and stored in the detection position information table 54c2 (shown in FIG. 7 ).
- the selection unit 142 selects the insertion height correction amount based on the positive or negative value of the first positional deviation amounts D11, D12, ... and the second positional deviation amounts D21, D22, ... depending on the operation type of the transport mechanism 120.
- the transport device 100 inserts the hand 122 above the specific pair of first support member S1 and second support member S2.
- the selection unit 142 selects as the insertion height correction amount. Specifically, when the transport mechanism 120 transports the transported object W into the container H, if either the first positional deviation amount D1 or the second positional deviation amount D2 is a positive value, the selection unit 142 preferably selects the larger of the first positional deviation amount D1 and the second positional deviation amount D2 as the insertion height correction amount. In FIG.
- the first positional deviation amount D1 is a positive value and the second positional deviation amount D2 is a negative value, so the selection unit 142 selects the first positional deviation amount D1 as the insertion height correction amount.
- the lead-out unit 144 derives the insertion height at which the hand 122 is inserted into the container H based on the selected insertion height correction amount (first positional deviation amount D1).
- the insertion height derived by the lead-out unit 144 is the sum of a reference insertion height (e.g., the insertion height IN1 of the hand 122 corresponding to the first first support member S1 and second support member S2 shown in FIG.
- the insertion height correction amount (e.g., the first positional deviation amount D11 of the first first support member S1 shown in FIG. 7).
- the selection unit 142 selects the larger of the first positional deviation amount D1 and the second positional deviation amount D2 (the positional deviation amount of the support part located higher) as the insertion height correction amount. Also, if the first positional deviation amount D1 and the second positional deviation amount D2 are both negative values, the selection unit 142 may select the larger of the first positional deviation amount D1 and the second positional deviation amount D2 (the positional deviation amount of the support part located higher) as the insertion height correction amount, but may not correct the insertion height of the hand 122 into the container H.
- the first support portion S1 and the second support portion S2 are both positioned below the specified height positions PL and PR. Therefore, even if the hand 122 is inserted above the first support portion S1 and the second support portion S2 at the reference insertion height (for example, insertion height IN1) shown in FIG. 8, there is no risk of the transported object W held by the hand 122 colliding with the first support portion S1 and the second support portion S2.
- the reference insertion height for example, insertion height IN1
- the lifting operation execution unit 148 lowers the hand 122 below the first support member S1 and second support member S2 of the specific pair, as shown by the arrow in Figure 10 (b), and the transported object W held by the hand 122 is supported by the first support member S1 and second support member S2 of the specific pair.
- the hand 122 must be lowered below the lower of the first support member S1 and second support member S2 (in this case, the second support member S2) because the transported object W held by the hand 122 moves out of the container H only after it is supported by the first support member S1 and second support member S2.
- the amount of descent H1 of the hand 122 after transport is the sum of the absolute value of the first displacement amount D1 of the first support portion S1 and the absolute value of the second displacement amount D2 of the second support portion S2.
- the selector 142 selects the larger of the first positional displacement amount D1 and the second positional displacement amount D2 (the displacement amount of the support portion located higher) as the insertion height correction amount.
- the amount of descent H1 of the hand 122 after transport may be such that the hand 122 descends to a position lower than the lowermost of the first support portion S1 and the second support portion S2.
- the transport operation type determination process ST0 determines that the operation is a carry-out operation
- the correction value selection process ST21 one of the first positional deviation amount D1 and the second positional deviation amount D2 calculated by the calculation unit 54a is selected as the insertion height correction amount.
- the selection of the insertion height correction amount may be performed by the selection unit 142.
- the hand insertion position correction process ST22 the insertion height of the hand 122 into the container H is derived based on the selected insertion height correction amount, and the hand 122 is raised or lowered to the derived insertion height.
- the derivation of the insertion height may be performed by the derivation unit 144.
- the raising and lowering of the hand 122 may be performed by the raising and lowering operation execution unit 148.
- the hand 122 positioned at the derived insertion height is inserted into the container H (for example, by moving the arm unit 126 in the forward/backward direction Y).
- the insertion of the hand 122 into the container H may be performed by the insertion operation execution unit 148.
- the transfer start step ST13 the hand 122 inserted into the container H is raised above the first support member S1 and second support member S2 of the specific pair, and the transferred object W supported by the first support member S1 and second support member S2 of the specific pair is held by the hand 122.
- the raising of the hand 122 may be performed by the lifting operation execution unit 148.
- the hand 122 is removed from the container H, and the transfer of the transferred object W to the specific pair of first support member S1 and second support member S2 of the container H is completed.
- the removal of the hand 122 from the container H may be performed by the insertion operation execution unit 148.
- the transport device 100 inserts the hand 122 below the specific pair of first support member S1 and second support member S2.
- the selection unit 142 selects as the insertion height correction amount. Specifically, when the transport mechanism 120 is transporting the transported object W from the container H, if either the first positional deviation amount D1 or the second positional deviation amount D2 is a negative value, the selection unit 142 preferably selects the smaller of the first positional deviation amount D1 and the second positional deviation amount D2 as the insertion height correction amount. In FIG.
- the first positional deviation amount D1 is a positive value and the second positional deviation amount D2 is a negative value, so the selection unit 142 selects the second positional deviation amount D2 as the insertion height correction amount.
- the lead-out unit 144 derives the insertion height at which the hand 122 is inserted into the container H based on the selected insertion height correction amount (second positional deviation amount D2).
- the insertion height derived by the lead-out unit 144 is the sum of a reference insertion height (e.g., the insertion height OUT1 of the hand 122 corresponding to the first first support member S1 and second support member S2 shown in FIG.
- the insertion height correction amount (e.g., the second positional deviation amount D21 of the first second support member S2 shown in FIG. 7).
- the selection unit 142 selects the smaller of the first positional deviation amount D1 and the second positional deviation amount D2 (the positional deviation amount of the support part located lower) as the insertion height correction amount. Also, if both the first positional deviation amount D1 and the second positional deviation amount D2 are positive values, the selection unit 142 may select the smaller of the first positional deviation amount D1 and the second positional deviation amount D2 (the positional deviation amount of the support part located lower) as the insertion height correction amount, but may not correct the insertion height of the hand 122 into the container H.
- both the first positional deviation amount D1 and the second positional deviation amount D2 are positive values, both the first support part S1 and the second support part S2 are located above the specified height positions PL and PR. In this case, even if the hand 122 is inserted below the first support portion S1 and the second support portion S2 at the reference insertion height (for example, insertion height OUT1) shown in FIG. 8, there is no risk of the hand 122 colliding with the transported object W supported by the first support portion S1 and the second support portion S2.
- the lifting operation execution unit 148 raises the hand 122 above the first support member S1 and second support member S2 of the specific pair, as shown by the arrow in Figure 11 (b), and the transferred object W supported by the first support member S1 and second support member S2 of the specific pair is held by the hand 122.
- the hand 122 moves out of the container H after the transferred object W supported by the first support member S1 and second support member S2 is held by the hand 122, so it must rise above the upper of the first support member S1 and second support member S2 (in this case, the first support member S1).
- the amount of lift H2 of the hand 122 after transport is the sum of the absolute value of the first displacement D1 of the first support member S1 and the absolute value of the second displacement D2 of the second support member S2.
- the selector 142 selects the smaller of the first positional displacement D1 and the second positional displacement D2 (the displacement of the lower support member) as the insertion height correction amount. In this case, the amount of lift H2 of the hand 122 after transport simply needs to be higher than the higher of the first support member S1 and the second support member S2.
- the conveying device 100 can reflect the result of the abnormality determination made by the determination unit 147 in controlling the conveying operation of the conveyed object W (for example, by stopping the operation of the conveying device 100 or correcting the insertion height of the hand 122 of the conveying mechanism 120 of the conveying device 100 into the container H).
- the conveying device 100 can select one of the positional deviation amounts (first positional deviation amount D1 and second positional deviation amount D2) calculated by the calculation unit 54a as the insertion height correction amount (for example, by selecting based on the carry-in or carry-out operation of the hand 122), and correct the insertion height at which the hand 122 is inserted into the container H based on the selected insertion height correction amount, thereby preventing the conveyed object W held by the hand 122 from colliding with the first support portion S1 and second support portion S2 provided on the container H, or preventing the hand 122 from colliding with the conveyed object W supported by the first support portion S1 and second support portion S2 provided on the container H.
- the container opening and closing device for opening and closing containers of the present invention has a detecting unit provided on the holding unit that detects the vertical height positions of the first support unit and the second support unit (the vertical lower end positions of the measured parts of each support unit) as the holding unit that holds the container lid moves, and a calculating unit calculates the amount of positional deviation between the detected height positions of those support units and a predetermined specified height position. This allows the container opening and closing device for opening and closing containers to accurately detect the height positions of the support units provided on the container. Furthermore, the determining unit of the conveying device determines whether the vertical height positions of the first support unit and the second support unit are abnormal based on the detection results of the detecting unit or the calculation results of the calculating unit.
- the conveying device selects one of the positional deviation amounts calculated by the calculation unit of the container opening/closing device as the insertion height correction amount (for example, selected based on the hand's carry-in or carry-out operation), and corrects the insertion height at which the hand is inserted into the container based on the selected insertion height correction amount, preventing the transported object held by the hand of the transport mechanism of the conveying device from colliding with the first and second support portions provided on the container, or the hand from colliding with the transported object supported by the first and second support portions provided on the container.
- the insertion height correction amount for example, selected based on the hand's carry-in or carry-out operation
- the present invention provides a container opening/closing device and conveying device that uses a container opening/closing device to detect the state of a support part attached to the container and determine whether there is an abnormality, thereby preventing a transported object held by a hand from colliding with the support part attached to the container, or preventing the hand from colliding with a transported object supported by the support part attached to the container.
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Abstract
Description
Claims (15)
- 水平方向に間隔を空けて設けられる一対の第1支持部と第2支持部が水平方向と直交する上下方向に間隔を空けて複数対設けられた容器を開閉するための容器開閉装置であって、
前記容器の蓋を保持する保持部と、
前記保持部を少なくとも前記上下方向へ移動させる駆動部と、
前記保持部に設けられ、前記保持部の移動によって前記第1支持部と前記第2支持部の前記上下方向における高さ位置をそれぞれ検出する検出部と、
前記第1支持部の第1位置ずれ量及び前記第2支持部の第2位置ずれ量を算出する算出部と、
を備え、
前記第1位置ずれ量は、前記第1支持部の検出された検出高さ位置と予め設定された前記第1支持部の規定高さ位置との位置ずれ量であり、
前記第2位置ずれ量は、前記第2支持部の検出された検出高さ位置と予め設定された前記第2支持部の規定高さ位置との位置ずれ量であり、
前記第1支持部と前記第2支持部は、それぞれ被搬送物を支持する本体部と、前記本体部の先端に設けられる被測定部を有し、
前記検出部は、前記第1支持部と前記第2支持部のそれぞれの前記被測定部の前記上下方向における下端位置を、前記第1支持部と前記第2支持部のそれぞれの前記検出高さ位置として検出する
ことを特徴とする容器開閉装置。 - 請求項1に記載の容器開閉装置に設けられる容器に対して被搬送物を搬送する搬送装置であって、
前記搬送装置は、前記検出部の検出結果又は前記算出部の算出結果に基づいて、前記第1支持部と前記第2支持部の前記上下方向における高さ位置が異常であるかを判定する判定部を備える
ことを特徴とする搬送装置。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも上方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を正の値として算出し、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも下方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を負の値として算出し、
前記判定部は、前記第1位置ずれ量の絶対値又は前記第2位置ずれ量の絶対値が第1閾値より大きい場合に、前記第1支持部の前記高さ位置、又は前記第2支持部の前記高さ位置が異常であると判定する
ことを特徴とする請求項2に記載の搬送装置。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置との差分を算出し、
前記判定部は、前記第1支持部の前記検出高さ位置と前記第2支持部の前記検出高さ位置との差分の絶対値が第2閾値より大きい場合に、前記第1支持部の前記高さ位置、又は前記第2支持部の前記高さ位置が異常であると判定する
ことを特徴とする請求項2に記載の搬送装置。 - 請求項1に記載の容器開閉装置に設けられる容器に対して被搬送物を搬送する搬送装置であって、
被搬送物を保持可能なハンドを有する搬送機構と、
前記容器開閉装置の前記算出部が算出する前記第1位置ずれ量と前記第2位置ずれ量のうち一つを挿入高さ補正量として選択する選択部と、
選択された前記挿入高さ補正量に基づき、前記ハンドの前記容器へ挿入する挿入高さを導出する導出部と、
前記ハンドを前記導出部で導出した前記挿入高さまで昇降させる昇降動作実施部と、
導出した前記挿入高さで前記ハンドを前記容器へ挿入させる挿入動作実施部と、
を備え、
前記選択部は、前記搬送機構の動作種別に応じて前記挿入高さ補正量を選択する
ことを特徴とする搬送装置。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも上方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を正の値として算出し、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも下方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を負の値として算出し、
前記選択部は、前記搬送機構の動作種別に応じて、前記第1位置ずれ量と前記第2位置ずれ量の値の正負に基づいて前記挿入高さ補正量を選択する
ことを特徴とする請求項5に記載の搬送装置。 - 前記搬送機構が前記容器へ前記被搬送物を搬入する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれかが正の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の大きい方を前記挿入高さ補正量として選択し、
前記搬送機構が前記容器から前記被搬送物を搬出する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれかが負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の小さい方を前記挿入高さ補正量として選択する
ことを特徴とする請求項6に記載の搬送装置。 - 前記搬送機構が前記容器へ前記被搬送物を搬入する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれも正の値、又はいずれも負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の大きい方を前記挿入高さ補正量として選択し、
前記搬送機構が前記容器から前記被搬送物を搬出する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれも正の値、又はいずれも負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の小さい方を前記挿入高さ補正量として選択する
ことを特徴とする請求項6に記載の搬送装置。 - 水平方向に間隔を空けて設けられる一対の第1支持部と第2支持部が水平方向と直交する上下方向に間隔を空けて複数対設けられた容器を開閉するための容器開閉装置と、被搬送物を保持可能なハンドを有する搬送機構を備えて前記容器開閉装置に設けられる容器に対して被搬送物を搬送する搬送装置と、前記容器開閉装置と前記搬送装置との動作を制御する制御部とを少なくとも備えた搬送システムであって、
前記容器開閉装置は、
前記容器の蓋を保持する保持部と、
前記保持部を少なくとも前記上下方向へ移動させる駆動部と、
前記保持部に設けられ、前記保持部の移動によって前記第1支持部と前記第2支持部の前記上下方向における高さ位置をそれぞれ検出する検出部と、を備え、
前記制御部は、
予め設定された前記第1支持部の規定高さ位置に対する前記第1支持部の第1位置ずれ量及び予め設定された前記第2支持部の規定高さ位置に対する前記第2支持部の第2位置ずれ量を算出する算出部と、
前記算出部が算出する前記第1位置ずれ量と前記第2位置ずれ量のうち一つを挿入高さ補正量として選択する選択部と、
選択された前記挿入高さ補正量に基づき、前記ハンドの前記容器へ挿入する挿入高さを導出する導出部と、
前記ハンドを前記導出部で導出した前記挿入高さまで昇降させる昇降動作実施部と、
導出した前記挿入高さで前記ハンドを前記容器へ挿入させる挿入動作実施部と、を備え、
前記検出部は、前記第1支持部と前記第2支持部のそれぞれの前記上下方向における下端部の位置を、前記第1支持部と前記第2支持部のそれぞれの前記検出高さ位置として検出する
ことを特徴とする搬送システム。 - 前記制御部は、前記検出部の検出結果又は前記算出部の算出結果に基づいて、前記第1支持部と前記第2支持部の前記上下方向における高さ位置が異常であるかを判定する判定部を更に備える
ことを特徴とする請求項9に記載の搬送システム。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも上方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を正の値として算出し、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも下方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を負の値として算出し、
前記判定部は、前記第1位置ずれ量の絶対値又は前記第2位置ずれ量の絶対値が第1閾値より大きい場合に、前記第1支持部の前記高さ位置、又は前記第2支持部の前記高さ位置が異常であると判定する
ことを特徴とする請求項10に記載の搬送システム。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置との差分を算出し、
前記判定部は、前記第1支持部の前記検出高さ位置と前記第2支持部の前記検出高さ位置との差分の絶対値が第2閾値より大きい場合に、前記第1支持部の前記高さ位置、又は前記第2支持部の前記高さ位置が異常であると判定する
ことを特徴とする請求項10に記載の搬送システム。 - 前記算出部は、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも上方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を正の値として算出し、前記第1支持部の前記検出高さ位置又は前記第2支持部の前記検出高さ位置が前記上下方向において前記規定高さ位置よりも下方にある場合に、前記第1位置ずれ量又は前記第2位置ずれ量を負の値として算出し、
前記選択部は、前記搬送機構の動作種別に応じて、前記第1位置ずれ量と前記第2位置ずれ量の値の正負に基づいて前記挿入高さ補正量を選択する
ことを特徴とする請求項9に記載の搬送システム。 - 前記搬送機構が前記容器へ前記被搬送物を搬入する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれかが正の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の大きい方を前記挿入高さ補正量として選択し、
前記搬送機構が前記容器から前記被搬送物を搬出する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれかが負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の小さい方を前記挿入高さ補正量として選択する
ことを特徴とする請求項13に記載の搬送システム。 - 前記搬送機構が前記容器へ前記被搬送物を搬入する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれも正の値、又はいずれも負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の大きい方を前記挿入高さ補正量として選択し、
前記搬送機構が前記容器から前記被搬送物を搬出する過程において、前記第1位置ずれ量と前記第2位置ずれ量のいずれも正の値、又はいずれも負の値である場合に、前記選択部は、前記第1位置ずれ量と前記第2位置ずれ量の小さい方を前記挿入高さ補正量として選択する
ことを特徴とする請求項13に記載の搬送システム。
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| JP2019087598A (ja) * | 2017-11-06 | 2019-06-06 | シンフォニアテクノロジー株式会社 | ロードポート、及びロードポートにおけるマッピング処理方法 |
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| KR101445911B1 (ko) | 2009-04-13 | 2014-09-29 | 히라따기꼬오 가부시키가이샤 | 기판캐리어 측정 지그, 충돌방지 지그 및 그것을 이용한 충돌방지 방법 |
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