WO2023248563A1 - ロボット用吸着装置 - Google Patents
ロボット用吸着装置 Download PDFInfo
- Publication number
- WO2023248563A1 WO2023248563A1 PCT/JP2023/011787 JP2023011787W WO2023248563A1 WO 2023248563 A1 WO2023248563 A1 WO 2023248563A1 JP 2023011787 W JP2023011787 W JP 2023011787W WO 2023248563 A1 WO2023248563 A1 WO 2023248563A1
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- WIPO (PCT)
- Prior art keywords
- suction
- robot
- state
- timer
- duration
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
- B25J15/0616—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum
- B25J15/0625—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum provided with a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
- B25J15/0616—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum
Definitions
- the present invention relates to a robot suction device used by being attached to a robot arm, and more specifically to a robot suction device for vacuum suctioning and transporting a workpiece to be transported.
- a robot arm having a suction device vacuum-chucks the workpiece to transport it from a predetermined position to another position (Patent Document 1). ).
- the timing of suction and suction release in such a suction device is controlled by a control program installed in the robot arm or an external control device that controls the robot arm.
- the timing of adsorption and adsorption release is sometimes controlled based on the position of the robot arm or the output of various sensors attached to the robot arm, but a simpler method is to control it based on time.
- the timing to start suction may be based on the position information of the robot arm, and the suction may be canceled after a predetermined period of time has elapsed since the suction.
- the duration of the suction state is determined in advance in consideration of the time required for the robot arm to move to a predetermined position after suctioning the workpiece to be transported, and this time is predetermined in the control program.
- the control program In order to change the timing of suction release, the control program must be changed each time.
- program modification work is difficult or virtually impossible for workers who are unfamiliar with programming, and even if programs can be modified, it may be cumbersome to do so at the production site. .
- the present invention provides a robot suction device that is used by being attached to a robot arm, so that the duration of at least one of the suction state and the suction release state can be easily changed on site. With the goal.
- the present invention A robot suction device used by being attached to a robot arm, a suction unit connected to a vacuum source and configured to suction and hold a workpiece to be transported; A timer for switching between a suction state in which a vacuum suction force by the vacuum source is generated in the suction part and a suction release state in which the vacuum suction force is not generated in the suction part, and the adsorption release state, the timer being capable of setting the duration of at least one of the states, and having a manual operation section for changing the setting of the duration; Equipped with A suction device for a robot is provided, wherein the one state is switched to the other state when the duration time set by the timer has elapsed.
- the duration of at least one of the suction state and the non-suction state can be changed by operating the manual operation section of the timer. Therefore, unlike conventional devices, there is no need to change the control program in order to change the duration time, and it becomes possible to easily change the duration time on site.
- the timer may be configured to set the duration of the adsorption state, and the adsorption state may be switched to the adsorption release state after the elapse of the duration time.
- the vacuum source can be a vacuum pump built into the robot suction device.
- a communication unit for communicating with an external control device; mode selection means for selecting an internal control mode and an external control mode; Furthermore, When the internal control mode is selected, the duration is set by the timer, and when the external control mode is selected, the duration is set based on a command from an external control device communicatively connected to the communication section. can be set.
- an arm fixing part configured to be fixed to the robot arm; a frame attached to the arm fixing part; a casing that covers at least a portion of the frame; a shaft-like member that extends in the vertical direction from an upper end supported by the frame to a lower end located outside the casing in the casing, the suction portion being provided at the lower end; a shaft-shaped member having a passage formed therein that constitutes a part of a flow path between the vacuum source and the vacuum source; Equipped with A downward load applied to the adsorption section can be supported by the arm fixing section via the shaft-like member and the frame.
- FIG. 1 is an external front view of a suction device for a robot according to an embodiment of the present invention.
- FIG. 2 is an external side view of the robot suction device shown in FIG. 1.
- FIG. FIG. 2 is a front view showing the internal structure of the robot suction device of FIG. 1.
- FIG. FIG. 2 is a side view showing the internal structure of the robot suction device of FIG. 1.
- FIG. FIG. 2 is a schematic diagram showing the flow path structure of the robot suction device of FIG. 1.
- a robot suction device 10 includes a main body 12 and a robot arm located above the main body 12. It includes an arm fixing part 14 and a suction pad (suction part) 16 located at a position protruding downward from below the main body part 12.
- suction pad 16 suction part
- the suction pad 16 when the suction pad 16 is pressed against the workpiece to be transported and is displaced upward with respect to the main body 12, negative pressure is generated in the suction pad 16, and the workpiece to be transported is held by suction.
- a preset duration time elapses after the start of suction, the negative pressure is released and the suction holding of the work to be transported is released.
- a timer 18, a pressure display monitor 20, and an error lamp 22 are arranged on the front of the main body 12. Further, as shown in FIG. 2, a regulator 24, a mode selection switch (mode selection means) 26, and a communication cable connector (communication section) 28 for communicating with an external control device are arranged on the side surface of the main body 12. ing. Further, a main power switch 30 of the robot suction device 10 is arranged on the lower surface of the main body 12.
- the frame 34 includes four support members 38 extending downward from the arm fixing portion 14 and a plate member 40 fixed to the support members 38 and extending in the horizontal direction.
- the shaft member 36 is attached to the plate member 40 of the frame 34 so as to be movable in the vertical direction.
- the shaft member 36 extends in the vertical direction from an upper end 36a supported by the frame 34 to a lower end 36b located outside the casing 32, and the suction pad 16 is removably attached to the lower end 36b.
- a tube connection part 42 to which a tube 56 see FIG.
- a tube connection part 42 is provided inside the shaft member 36 from the tube connection part 42 to the lower end.
- a passage 36c (FIG. 5) is formed that extends to 36b.
- the shaft member 36 is urged downward by a spring 44, and when the suction pad 16 is pressed against the object to be transported, the shaft member 36 moves upward while compressing the spring 44.
- a microswitch 48 having a lever 46 is arranged inside the casing 32 . The lever 46 of the microswitch 48 is in a position where it engages with the switch engaging portion 50 of the shaft member 36.
- the lever 46 of the microswitch 48 engages with the switch engaging portion 50 of the shaft member 36 and is pushed in, and the microswitch 48 is in the OFF state.
- the shaft-like member 36 moves upward, it is disengaged from the switch engaging portion 50, the push-in of the lever 46 is released, and the microswitch 48 is turned on.
- the robot suction device 10 is configured to enter the suction state when the suction pad 16 is pressed against the work to be transported and the microswitch 48 is turned on.
- a vacuum pump (vacuum source) 52 and a solenoid valve 54 are further arranged within the casing 32 of the main body portion 12.
- the vacuum pump 52 is in fluid communication with the passage 36c of the shaft member 36 via a tube 56 (omitted in FIGS. 3 and 4), as shown in FIG.
- the passage 36c constitutes a part of a flow path 58 that extends between the suction pad 16 and the vacuum pump 52 via the tube 56.
- the electromagnetic valve 54 is connected to a flow path 58 between the vacuum pump 52 and the shaft member 36, and opens the flow path 58 between the vacuum pump 52 and the shaft member 36 to the atmosphere when it is in an open state. is being used.
- a pressure sensor 60 is further connected to the flow path 58 .
- the pressure sensor 60 measures the pressure within the flow path 58, and the pressure value is displayed on the pressure display monitor 20 described above. Further, the regulator 24 is for adjusting the pressure within the flow path 58 generated by the vacuum pump 52. Note that the magnitude of the pressure adjusted by the regulator 24 can be changed by operating a knob portion exposed to the outside of the main body portion 12.
- the suction pad 16 when the suction pad 16 is pushed upward and the microswitch 48 is turned on, the suction pad 16 enters a suction state in which a vacuum suction force is generated, and when a preset duration time has elapsed from the suction state. It is designed to enter a suction release state in which no vacuum suction force is generated. More specifically, when the microswitch 48 is turned on, the solenoid valve 54 is closed and the vacuum pump 52 is activated, generating vacuum suction force on the suction pad 16 through the passage 36c of the shaft member 36. It becomes like this.
- the vacuum pump 52 is stopped and the solenoid valve 54 is opened to open the flow path 58 to the atmosphere, thereby increasing the pressure inside the flow path 58 to atmospheric pressure.
- the vacuum suction force on the suction pad 16 is quickly released.
- the upper limit vacuum pressure and lower limit vacuum pressure during the adsorption state can be set, and if the pressure value measured by the pressure sensor during the adsorption state exceeds the upper limit vacuum pressure.
- the vacuum pump 52 is temporarily stopped, and if the lower limit vacuum pressure is lower than the lower limit, the vacuum pump 52 is restarted. Thereby, the vacuum suction force generated on the suction pad 16 is maintained within a certain range.
- the above-mentioned regulator 24 can also be used to adjust the vacuum pressure so that it does not exceed a certain level.
- the mode selection switch 26 allows selection between an internal control mode and an external control mode.
- the duration of the adsorption state is the value set by the timer 18.
- the timer 18 has a knob portion (manual operation portion) 62 arranged to be operable from the outside, and the duration can be set to any value by operating the knob portion 62.
- the external control mode is selected, the setting of the timer 18 is ignored and the duration is set by commands from an external control device communicatively connected via a communication cable. Note that the communication connection with the external control device may be made by other methods, such as wireless communication.
- the pressure measured by the pressure sensor does not fall below the predetermined normal operating pressure value even after a predetermined period of time has passed since the suction state was established, it is determined that the work to be transported is not properly suctioned by the suction pad 16.
- the transport operation by the robot arm is stopped, and the error lamp 22 is turned on to notify the user of this condition.
- the downward load applied to the suction pad 16 when the workpiece to be transported is suctioned and held on the suction pad 16 in the suction state is not applied to the casing 32, but is supported by the arm fixing part 14 via the shaft member 36 and the frame 34. It is supposed to be done.
- the casing 32 is made of a resin that is not very strong
- the shaft member 36, the frame 34, and the arm fixing portion 14 are made of a strong metal. Therefore, even when a relatively heavy workpiece to be transported is held by suction, the load is applied only to the members with high strength, so that it is possible to hold the workpiece to be transported in a stable state.
- the duration of the suction state can be set by operating the knob 62 of the timer 18 provided on the main body 12, so that control is not required as in the conventional method. It becomes possible to easily change the timing of switching from the suction state to the suction release state without changing the program.
- the timer 18 is used to set the duration of the adsorption state, but the duration of the adsorption release state may be set.
- the main body may not include a vacuum pump, but may be connected to another external vacuum source via a tube or the like.
- a solenoid valve is used to establish fluid communication between the suction pad and the external vacuum source in the adsorption state, and to cut off the suction pad and the external vacuum source in the non-adsorption state and to open the flow path on the suction pad side. It can be opened to the atmosphere.
- a microswitch detects that the suction pad is pushed into the main body and starts the suction state
- an optical sensor such as a camera is used to detect when the robot suction device is in a predetermined position.
- the adsorption state or the adsorption release state is started based on detecting that the robot arm has reached a predetermined position or detecting that the robot arm has reached a predetermined coordinate using an encoder, etc. of each joint of the robot arm.
- the manual operation section for changing the setting of the duration on the timer is not limited to a knob section, and various forms such as a button operation, a touch panel, etc. can be adopted.
- Suction device for robot Main body part 14 Arm fixing part 16 Suction pad (suction part) 18 Timer 20 Pressure display monitor 22 Error lamp 24 Regulator 26 Mode selection switch (mode selection means) 28 Communication cable connector (communication section) 30 Main power switch 32 Casing 34 Frame 36 Shaft member 36a Upper end portion 36b Lower end portion 36c Passage 38 Support member 40 Plate member 42 Tube connection portion 44 Spring 46 Lever 48 Micro switch 50 Switch engaging portion 52 Vacuum pump (vacuum source) 54 Solenoid valve 56 Tube 58 Flow path 60 Pressure sensor 62 Knob section (manual operation section)
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
Description
ロボットアームに取り付けて使用されるロボット用吸着装置であって、
真空源に接続されて、搬送対象ワークを吸着保持するようにされた吸着部と、
前記真空源による真空吸着力が前記吸着部に生じるようになる吸着状態と、前記吸着部に前記真空吸着力が生じないようになる吸着解除状態とを切り替えるためのタイマーであって、前記吸着状態と前記吸着解除状態とのうちの少なくとも一方の状態の継続時間を設定可能とされ、前記継続時間を設定変更するための手動操作部を有する、タイマーと、
を備え、
前記タイマーにより設定された前記継続時間が経過したときに前記一方の状態から他方の状態に切り替わるようにされた、ロボット用吸着装置を提供する。
外部制御装置と通信接続するための通信部と、
内部制御モードと外部制御モードとを選択するためのモード選択手段と、
をさらに備え、
前記内部制御モードが選択されているときには前記タイマーによって前記継続時間が設定され、前記外部制御モードが選択されているときには前記通信部に通信接続された外部制御装置からの命令に基づいて前記継続時間が設定されるようにすることができる。
ロボットアームに固定されるようにされたアーム固定部と、
前記アーム固定部に取り付けられたフレームと、
前記フレームの少なくとも一部を覆うケーシングと、
前記ケーシング内において前記フレームに支持された上端部から該ケーシングの外側に位置する下端部にまで上下方向に延びる軸状部材であって、前記吸着部が前記下端部に設けられ、前記吸着部と前記真空源との間の流路の一部を構成する通路が内部に形成されている軸状部材と、
を備え、
前記吸着部に加わる下方への荷重が、前記軸状部材及び前記フレームを介して前記アーム固定部によって支持されるようにすることができる。
12 本体部
14 アーム固定部
16 吸着パッド(吸着部)
18 タイマー
20 圧力表示モニタ
22 エラーランプ
24 レギュレータ
26 モード選択スイッチ(モード選択手段)
28 通信ケーブルコネクタ(通信部)
30 メイン電源スイッチ
32 ケーシング
34 フレーム
36 軸状部材
36a 上端部
36b 下端部
36c 通路
38 支柱部材
40 板状部材
42 チューブ接続部
44 スプリング
46 レバー
48 マイクロスイッチ
50 スイッチ係合部
52 真空ポンプ(真空源)
54 電磁弁
56 チューブ
58 流路
60 圧力センサ
62 つまみ部(手動操作部)
Claims (5)
- ロボットアームに取り付けて使用されるロボット用吸着装置であって、
真空源に接続されて、搬送対象ワークを吸着保持するようにされた吸着部と、
前記真空源による真空吸着力が前記吸着部に生じるようになる吸着状態と、前記吸着部に前記真空吸着力が生じないようになる吸着解除状態とを切り替えるためのタイマーであって、前記吸着状態と前記吸着解除状態とのうちの少なくとも一方の状態の継続時間を設定可能とされ、前記継続時間を設定変更するための手動操作部を有する、タイマーと、
を備え、
前記タイマーにより設定された前記継続時間が経過したときに前記一方の状態から他方の状態に切り替わるようにされた、ロボット用吸着装置。 - 前記タイマーが前記吸着状態の継続時間を設定するようにされ、前記継続時間の経過後に前記吸着状態から前記吸着解除状態に切り替わるようにされた、請求項1に記載のロボット用吸着装置。
- 前記真空源が当該ロボット用吸着装置に内蔵された真空ポンプである、請求項1に記載のロボット用吸着装置。
- 外部制御装置と通信接続するための通信部と、
内部制御モードと外部制御モードとを選択するためのモード選択手段と、
をさらに備え、
前記内部制御モードが選択されているときには前記タイマーによって前記継続時間が設定され、前記外部制御モードが選択されているときには前記通信部に通信接続された外部制御装置からの命令に基づいて前記継続時間が設定されるようにされた、請求項1に記載のロボット用吸着装置。 - ロボットアームに固定されるようにされたアーム固定部と、
前記アーム固定部に取り付けられたフレームと、
前記フレームの少なくとも一部を覆うケーシングと、
前記ケーシング内において前記フレームに支持された上端部から該ケーシングの外側に位置する下端部にまで上下方向に延びる軸状部材であって、前記吸着部が前記下端部に設けられ、前記吸着部と前記真空源との間の流路の一部を構成する通路が内部に形成されている軸状部材と、
を備え、
前記吸着部に加わる下方への荷重が、前記軸状部材及び前記フレームを介して前記アーム固定部によって支持されるようにされた、請求項1乃至4のいずれか一項に記載のロボット用吸着装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23826752.0A EP4545258A4 (en) | 2022-06-23 | 2023-03-24 | SUCTION DEVICE FOR ROBOT |
| JP2024528311A JP7823187B2 (ja) | 2022-06-23 | 2023-03-24 | ロボット用吸着装置 |
| CN202380047536.6A CN119325418A (zh) | 2022-06-23 | 2023-03-24 | 机器人用吸附装置 |
| US18/978,549 US20250108519A1 (en) | 2022-06-23 | 2024-12-12 | Suction holding apparatus for robot |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022100858 | 2022-06-23 | ||
| JP2022-100858 | 2022-06-23 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/978,549 Continuation US20250108519A1 (en) | 2022-06-23 | 2024-12-12 | Suction holding apparatus for robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023248563A1 true WO2023248563A1 (ja) | 2023-12-28 |
Family
ID=89379482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/011787 Ceased WO2023248563A1 (ja) | 2022-06-23 | 2023-03-24 | ロボット用吸着装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250108519A1 (ja) |
| EP (1) | EP4545258A4 (ja) |
| JP (1) | JP7823187B2 (ja) |
| CN (1) | CN119325418A (ja) |
| WO (1) | WO2023248563A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102409288B1 (ko) * | 2022-02-25 | 2022-06-15 | (주)브이텍 | 진공 흡착 패드 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11114862A (ja) * | 1997-10-20 | 1999-04-27 | Smc Corp | 真空発生用ユニット |
| JPH11309686A (ja) * | 1998-04-30 | 1999-11-09 | Smc Corp | シリンダ付真空発生用ユニット |
| JP2001154723A (ja) * | 1999-11-29 | 2001-06-08 | Harmo:Kk | ロボット用コントローラ装置 |
| JP2021122872A (ja) | 2020-02-03 | 2021-08-30 | 株式会社デンソーウェーブ | ワークの吸着装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005262351A (ja) * | 2004-03-17 | 2005-09-29 | Koganei Corp | 真空吸着ユニット |
| DE102007058114A1 (de) * | 2007-12-04 | 2009-06-10 | Festo Ag & Co. Kg | Vakuumerzeugervorrichtung und Verfahren zu ihrem Betreiben |
| US10518985B2 (en) * | 2016-05-31 | 2019-12-31 | Wood's Powr-Grip Co., Inc. | Control systems and methods for vacuum lift equipment |
-
2023
- 2023-03-24 CN CN202380047536.6A patent/CN119325418A/zh active Pending
- 2023-03-24 WO PCT/JP2023/011787 patent/WO2023248563A1/ja not_active Ceased
- 2023-03-24 EP EP23826752.0A patent/EP4545258A4/en active Pending
- 2023-03-24 JP JP2024528311A patent/JP7823187B2/ja active Active
-
2024
- 2024-12-12 US US18/978,549 patent/US20250108519A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11114862A (ja) * | 1997-10-20 | 1999-04-27 | Smc Corp | 真空発生用ユニット |
| JPH11309686A (ja) * | 1998-04-30 | 1999-11-09 | Smc Corp | シリンダ付真空発生用ユニット |
| JP2001154723A (ja) * | 1999-11-29 | 2001-06-08 | Harmo:Kk | ロボット用コントローラ装置 |
| JP2021122872A (ja) | 2020-02-03 | 2021-08-30 | 株式会社デンソーウェーブ | ワークの吸着装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4545258A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4545258A4 (en) | 2026-06-10 |
| EP4545258A1 (en) | 2025-04-30 |
| CN119325418A (zh) | 2025-01-17 |
| JP7823187B2 (ja) | 2026-03-03 |
| US20250108519A1 (en) | 2025-04-03 |
| JPWO2023248563A1 (ja) | 2023-12-28 |
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