JPH0737825Y2 - Vacuum suction head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a vacuum suction head, and more particularly to a vacuum suction head used for handling a ring-shaped thin spacer or the like.

[Conventional technology]

2 (a) and 2 (b) are respectively an exploded perspective view and a vertical sectional view showing an example of a conventional vacuum adsorption head.

The vacuum suction head shown in FIG. 2 has a suction block 11 having a cylindrical shape and a female thread 14 for a pipe at one end, and a disk-shaped suction pad 12 having a plurality of suction holes 13 on the circumference. Here, the suction pad 12 is fixed to the suction block 11 with an adhesive, and the suction of the component is performed by the suction hole 13 of the suction pad 12.

[Problems to be solved by the device]

Since the conventional vacuum suction head described above is vacuum-sucked by the disk-shaped suction pad 12 having the plurality of suction holes 13 on the circumference, the diameter is small in order to suck the narrow ring of width. In addition to requiring a small hole, it is often necessary to insert the suction block 11 itself into the hole of the mating part when inserting the sucked ring into the hole of the mating part. The outer diameter of the ring needs to be almost the same, and there is a drawback that machining is very difficult.

The outer diameter shown in Fig. 3 (b) is 5.6 mm and the inner diameter is 4.8 mm.
In order to adsorb the ring 15 having a thickness of 0.1 mm and a thickness of 0.1 mm, as shown in FIG.
It is necessary to set the diameter to about 1 and the diameter of the suction hole 13 to 0.1 to 0.2 mm, which is practically impossible.

[Means for Solving the Problems]

The vacuum suction head of the present invention has a cylindrical shape having an internal thread portion on the inner surface, a suction block having a tapered opening portion at one end that is connected to the vacuum pipe and the other end has a taper angle equal to the taper angle of the suction block. A suction pad having a plurality of grooves which are formed in the shape of a truncated cone having an angle in the inclined direction on the side surface, and an external thread portion screwed into the internal thread portion of the suction block is connected to the groove of the suction pad in the axial direction. A mounting screw which has a groove and which attaches the suction pad to the opening of the suction block so that the tapered inner surface and outer periphery of the suction pad are closely attached to each other.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

1 (a) and 1 (b) are a perspective view and a vertical sectional view, respectively, showing an embodiment of the present invention.

The vacuum suction head shown in FIG. 1 has a cylindrical shape having a threaded portion 8 on the inner surface, a female thread 7 for a pipe at one end, and a stepped portion 9 having a diameter larger than the inner diameter at the other end, and a tapered opening extending outward from the stepped portion 9. A suction block 1 having a portion 10, a truncated cone shape having a counterbore screw hole 3 at the center, and a suction pad having a plurality of grooves 4 dug in the inclined direction on the side surface; And a mounting screw 5 having a groove 6 in the book.

The suction pad 2 is fixed to the suction block 1 with a mounting screw 5, a female pipe thread 7 is connected to a vacuum pipe, and evacuation is performed from the groove 4 of the suction pad 2 to the groove 6 of the screw 5. Since the groove 4 of the suction pad 2 is dug on the tapered surface, the suction area can be provided near the outer diameter of the suction block 1.

[Effect of device]

The vacuum suction head of the present invention is a suction pad having a conical trapezoidal shape and a plurality of grooves in a slanting direction on the taper surface, instead of providing a disk-shaped suction pad having a plurality of suction holes on the circumference. By providing the suction area, it is possible to easily provide the suction area in the vicinity of the outer diameter of the suction block, and it is possible to suction a narrow ring-shaped component having a narrow width.

[Brief description of drawings]

1 (a) and 1 (b) are exploded perspective views and longitudinal sectional views showing an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are exploded perspective views showing a conventional vacuum suction head, respectively. 3A and 3B are a vertical cross-sectional view showing specific dimensions of the tip of an example of a conventional vacuum suction head and a plan view of a ring which is a suction target. .. 1,11 …… Suction block, 2,12… Suction pad, 3 …… Spot facing screw hole, 4,6 …… Groove, 5 …… Mounting screw, 7,14 ……
Female thread for pipe, 8 ... Screw section, 9 ... Stepped section, 10 ... Tapered opening, 13 ... Suction hole, 15 ... Ring.

Claims (1)

[Scope of utility model registration request] 1. A suction block having a cylindrical shape having an internal thread on its inner surface and a tapered opening extending outwardly at the other end of the connection to a vacuum pipe at the one end, and having the same angle as the taper angle of the suction block. A suction pad having a conical trapezoidal shape and a plurality of grooves dug in the inclined direction on the side surface, and a male screw portion screwed to the female screw portion of the suction block has an axial groove connected to the groove of the suction pad. And a mounting screw for attaching the suction pad to the opening of the suction block so that the tapered inner surface and outer periphery of the suction pad are closely attached to each other.