JPH059884U - Suction pad holding device - Google Patents

Abstract

(57) [Abstract] [Purpose] By allowing the mounting metal fittings and holding metal fittings of the suction pad to be set at a desired angle, and by returning the workpiece to a posture that is preferably initialized to suck and convey the work. An object of the present invention is to provide a holding device for a suction pad that can appropriately suck and convey a work repeatedly. [Structure] The holding metal fitting 14 is swingably engaged with the mounting metal fitting 12, so that the holding metal fitting 14 is rotated when the work 24 is inclined with respect to the suction surface of the suction pad 18. 24 and the suction pad 18 can be brought into close contact with each other, and the inclination angle of the suction pad 18 can be fixed to a desired angle. When the work 24 is not sucked, the holding metal fitting 14 is automatically rotated by the posture holding means arranged at the end of the support arm, and the suction pad 18 sucks and conveys the work. In order to do so, the posture is preferably returned to the initialized state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction pad holding device that sucks a work or holds and transports the work after suction.

[0002]

[Prior Art]

 Conventionally, for example, a transfer device provided with a suction pad has been used to transfer stacked thin plate-shaped works. The transfer device is generally configured such that the suction pad is connected to the displacement mechanism side via a robot arm or the like.

[0003]

[Problems to be solved by the device]

 In this case, the suction pad is fixed to the end of the robot arm, etc., and is restricted in operation. Therefore, for example, when the suction surfaces of the stacked works are inclined with respect to the suction pads, the suction pads may not adhere to the works, and a sufficient suction force may not be obtained.

The present invention solves this kind of problem, and provides a suction pad holding device capable of setting the attachment metal and the holding metal of the suction pad at a desired angle. With the goal.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a holding device for holding a suction pad for sucking and transporting a work, in which a mounting bracket fixed to an end of a support arm continuously provided on the displacement mechanism side. And a holding metal fitting for holding the suction pad, and a posture holding means arranged between the mounting metal fitting and the holding metal fitting for holding the posture of the holding metal fitting with respect to the mounting metal fitting. It is characterized in that it is pivotally mounted on a mounting bracket by using a bottle and a nut.

[0006]

[Action]

 In the suction pad holding device according to the present invention described above, the holding metal fitting can swing with respect to the mounting metal fitting, and the holding metal fitting rotates when the workpiece is inclined with respect to the suction surface of the suction pad. Thus, the work and the suction pad can be brought into close contact with each other, and the inclination angle of the suction pad can be fixed to a desired angle.

Further, when the work is not adsorbed, the holding metal fitting is automatically rotated by the posture holding means arranged between the mounting metal fitting and the holding metal fitting, and the suction pad holds the work. A posture that is preferably initialized for suction and conveyance is restored.

【Example】

 An embodiment of a suction pad holding device according to the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2, reference numeral 10 indicates a suction pad holding device according to the present embodiment. The holding device 10 has a mounting bracket 12 and a holding bracket 14, and the mounting bracket 12 is fixed to an end of a robot arm 13. The holding metal fitting 14 and the mounting metal fitting 12 are axially attached by a bolt 16, and a nut 17 is attached to an end portion of the bolt 16. The suction pad 18 is attached to the holding metal fitting 14 via an adapter 19. Then, a spring 20 as a cushioning means is mounted between the holding metal fitting 14 and the suction pad 18. The suction pad 18 communicates with a vacuum suction source (not shown) via a passage 21.

Further, in the gap between the end of the support arm, for example, the holding metal fitting 14 and the mounting metal fitting 12, each end of the spring 15 having a predetermined elastic force as an attitude holding means is fixed to each wall surface. Has been done.

Next, the operation of the suction pad holding device 10 configured as described above will be described.

As shown in FIG. 3, when the suction pad 18 obliquely contacts the stacked works 24, if the posture of the suction pad 18 is fixed, the works 24 are preferably sucked. Can not be. On the other hand, in the holding device 10 of the present embodiment, when the suction pad 18 is pressed against the work piece 24, the holding metal fitting 14 rotates around the bolt 16 as a rotation axis, and as shown in FIG. The suction surface of 18 adheres to the work 24.

Next, the suction conveyance operation is started in the above state. In this case, the suction surface of the suction pad 18 suitably contacts the work 24. Further, after the work 24 is conveyed to a predetermined position and the work 24 is separated from the suction pad 18, the holding metal fitting 14 is automatically rotated by the attitude holding means such as the spring 15 so that the suction pad 18 is moved. 18 returns to the initially set posture. In this way, it is possible to suitably repeat the adsorption and conveyance of the stacked works 24.

In the above-described embodiment, the suction pad 18 is connected to the mounting bracket 12 via the holding bracket 14, but this may be configured, for example, as shown in FIG. 5 or 6. You can also

That is, as shown in FIG. 5, the ejector 26, the filter 28 and the vacuum switch 30 are connected to the adapter 19 of the suction pad 18, and are attached to the vacuum switch 30 via the bolt 16. The metal fitting 12 is connected. The vacuum switch 30 has a digital function such as a liquid crystal (LCD) and a light emitting diode (LED) for the function of the suction pad 18, such as pressure setting, adjustment, alarm, on / off, hysteresis and mode switching. A display unit 31 including a display device is provided.

Further, as shown in FIG. 6, the ejector 34 having the valve 32 and the filter 36 are connected to the adapter 19 of the suction pad 18, and the mounting bracket 12 is connected to the filter 36 via the bolt 16. To be done. With this structure, the structure of the work transfer mechanism including the suction pad 18 can be made more compact.

On the other hand, as an embodiment of the posture holding means, as shown in FIG. 7, a plurality of springs 15 are arranged between the protrusions 11 and 17 formed on the holding metal fitting 14 and the mounting metal fitting 12, respectively. When the robot arm 13 is configured by disposing the robot arm 13 between the protrusions 11 and 17 formed on the holding metal fitting 14 and the mounting metal fitting 12, respectively, as shown in FIG. 9, a spring 16 wound around a bolt 16 connecting the holding metal fitting 14 and the mounting metal fitting 12 and having both ends fixed to respective wall surfaces, and as shown in FIG. 10, the spring of FIG. A case where a rotary actuator 38 is used instead of 20 can be considered. By driving the rotary actuator 38, it becomes possible to electrically set the tilt angle.

[0017]

[Effect of the device]

 As described above, the suction pad holding device according to the present invention has the following advantageous effects and advantages.

That is, by making the holding device swingable, when the work is tilted with respect to the suction pad, the holding metal fitting is rotated so that the suction surface of the suction pad comes into close contact with the work. Can be set to. Further, the suction pad is returned to the posture which is preferably initialized to suck and convey the work by the posture holding means. As a result, it is possible to suitably repeat the suction and conveyance of the work.

[Brief description of drawings]

FIG. 1 is a perspective view of a suction pad holding device according to the present invention.

FIG. 2 is a plan view of a suction pad holding device according to the present invention.

FIG. 3 is an operation explanatory diagram of the suction pad holding device according to the present invention before suction.

FIG. 4 is an operation explanatory diagram of the holding device of the suction pad according to the present invention during suction.

FIG. 5 is a perspective view of another embodiment of a suction pad holding device according to the present invention.

FIG. 6 is a perspective view of another embodiment of a suction pad holding device according to the present invention.

FIG. 7 is a perspective view of a suction pad holding device having a posture holding unit composed of a robot arm.

FIG. 8 is a perspective view of a suction pad holding device having a posture holding means formed of a robot arm.

FIG. 9 is a perspective view of a suction pad holding device having posture holding means of different shapes.

FIG. 10 is a perspective view of a suction pad holding device having a posture holding unit composed of a rotary actuator.

[Explanation of symbols]

 10 ... Suction pad holding device 12 ... Mounting bracket 14 ... Holding bracket 16 ... Bolt 17 ... Nut 18 ... Suction pad 19 ... Adapter 20 ... Spring 24 ... Workpiece

Claims (1)

[Claims for utility model registration] [Claim 1] In a holding device for holding a suction pad for sucking and transporting a work, a mounting bracket fixed to an end of a support arm continuously provided on the displacement mechanism side. A holding metal fitting for holding the suction pad, and a posture holding means for holding the posture of the holding metal fitting with respect to the mounting metal fitting, the holding metal fitting being disposed between the mounting metal fitting and the holding metal fitting. A device for holding a suction pad, which is pivotally attached to a mounting bracket by using a bottle and a nut so as to be swingable.