JP2706538B2 - Vacuum suction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Overview] The present invention relates to a vacuum suction device used for handling small components such as electronic components, and aims at cost reduction, versatility, and improvement of maintainability. The housing includes a first sleeve, a joint, a first suction pad, a second suction pad, a second sleeve, a joint, and a small cylinder. The housing supports the entire vacuum suction device and is attached to a handling device. The first sleeve is slid into the housing,
The joint fixed to the first sleeve has a collar larger than the outer shape of the first sleeve to prevent the joint from being detached from the housing, and to attach the first suction pad to a tip thereof. The joint connects the tubes and evacuates, the first suction pad is for sucking a small object to be sucked, and the second suction pad is coaxial with the first suction pad. The first sleeve has a diameter larger than that of the first suction pad, and is located outside the first suction pad to suck a large object to be sucked; and the second sleeve is provided around the first sleeve. And is fixed to the joint, and the second suction pad is attached to the tip of the joint. The joint is connected to the small cylinder, and the small cylinder is attached to the housing. With fixing , The shaft of which is lowered to push down the second sleeve fixed to the joint, and the small suction object is vacuum-sucked by the first suction pad, and the outside of the first suction pad is sucked. By pressing down the second suction pad and the second sleeve, the second suction pad is lowered below the first suction pad to suck the large suction object.

[Industrial applications]

The present invention relates to a vacuum pad used when handling small components such as electronic components.

One of the methods of handling small parts and the like is a method of performing suction conveyance using a vacuum, and a vacuum pad is used for this.

Compared to mechanical handling, the structure is simpler and the shape and size of the object can be widely supported,
Even in the method using a vacuum pad, it is necessary to select a suction pad having a size commensurate with the rank according to the size of the object to be sucked.

However, recently, the number of types of electronic parts and the like has been reduced, and the production and test equipment that handles these small parts has been improved in versatility such that a single model can handle many types of products and the type switching time is short. There is a demand for a handling mechanism that minimizes part replacement as much as possible and supports multiple types.

[Conventional technology]

 FIG. 4 is an explanatory view of a conventional example.

In the figure, 17 is a housing, 18 is a sleeve, 19 is a suction pad, 20 is a joint, and 21 is a compression coil spring.

In the conventional vacuum suction device, one sleeve 18
If the suction pad 17 is attached and the suction pad is selected and used according to the size and weight of the object to be sucked, and the size of the object to be suctioned changes on the way,
The suction pad had to be replaced.

That is, usually, the sleeve is also made according to the size of the suction pad, so that the replacement of the suction pad is the replacement of the entire vacuum suction device.

[Problems to be solved by the invention]

Therefore, in the conventional method, there are problems such as a rise in cost due to an increase in capital investment, a decrease in versatility because replacement is required for each model, and a decrease in maintenance (maintenance) that requires frequent replacement. .

The present invention is provided for the purpose of solving these problems.

[Means for solving the problem]

 FIG. 1 is a diagram illustrating the principle of the present invention.

In the figure, 1 is a housing, 2 is a first sleeve, 3 is a joint, 4 is a first suction pad, 5 is a second suction pad, and 6 is a second suction pad.
The sleeve, 7 is a joint, and 8 is a small cylinder.

As shown in Fig. 1, the above problem is caused by attaching two large and small suction pads 4 and 5 to the suction pad mounting part of the vacuum suction device, and moving one of the suction pads downward depending on the size of the object to be suctioned. By having a mechanism for adsorbing the object to be adsorbed, the above-described problem can be solved.

[Action]

In the present invention, as shown in FIG. 1, two types of suction pads, large and small, are stacked on a single vacuum suction device, so that large and small suction pads can be attached to objects of different sizes. By using differently, it is possible to support a wider variety of products than before without replacing the vacuum suction device.

For example, in a device that supplies small parts on a pallet, the handling mechanism can be simplified by using the inner suction pad for suction transfer of small parts and the outer suction pad for suction transfer of the pallet. The size of the device can be reduced.

〔Example〕

FIG. 2 is an explanatory view of an embodiment of the present invention, and FIG. 3 is a mounting diagram of a conventional example or a vacuum suction device of the present invention in a handling device.

In the figure, the numbers are common from FIG. 1 to FIG.

 One embodiment will be described with reference to FIGS.

The whole is called a vacuum suction device 11 and is usually attached to the tip of two sleeves 2 and 6 on a concentric axis.
A mechanism for selecting and adsorbing the small and small objects to be adsorbed by the adsorption pads 4 and 5 of two sizes, large and small.

As shown in FIGS. 1 to 3, the basic structure of the vacuum suction device 11 is as follows.
, The joint 3 for evacuation stops. The sleeve 2 has a cushion function by a compression coil spring 13,
When the small suction object 9 is sucked by the first suction pad 4 attached to the tip of the first sleeve 2, the suction pad is gently pressed and sucked.
Thus, the sleeve 2 returns upward.

The housing 1 is attached to an actuator of a handling mechanism via an attachment 14.

In one embodiment of the present invention, a second sleeve 6 having a large diameter second suction pad 5 which is concentric with the first suction pad 4 and is attached to the second sleeve 6 is added. The sleeve 6 has a mechanism capable of moving up and down by a small cylinder 8 through a joint 7, and the second suction pad 5 can be moved to a position above and below the first suction pad 4.

Although the inside of the first sleep 2 is hollow and constantly sucked in vacuum, the second sleeve 6 is evacuated through a side hole.

However, it is only when the second suction pad 5 is lowered that the side hole of the first sleeve 2 and the second sleeve 6
The side holes of are matched and effective.

With these mechanisms, it is possible to use the inside and outside adsorption selectively depending on the size of the object to be adsorbed.
The handling mechanism can be very compact and quotient.

〔The invention's effect〕

As described above, according to the present invention, the versatility of the handling mechanism can be improved, so that the present invention is particularly effective for handling small parts with many kinds and small quantities. If the quotient functionality is utilized, the mechanism of the handling device can be reduced, which contributes to downsizing and cost reduction of the device.

[Brief description of the drawings]

 FIG. 1 is a diagram illustrating the principle of the present invention, FIG. 2 is a diagram illustrating an embodiment of the present invention, FIG. 3 is a diagram illustrating a vacuum suction device mounted on a handling device, and FIG. is there. In the figure, 1 is a housing, 2 is a first sleeve, 3 is a joint, 4 is a first suction pad, 5 is a second suction pad, 6 is a second sleeve, 7 is a joint, 8 is a small cylinder, 9 is a small object to be adsorbed, 10 is a large object to be adsorbed, 11 is a vacuum suction device, 12 is a tube, 13 is a compression coil spring, 14 is a mounting bracket, 15 is an actuator, and 16 is an object to be adsorbed.

Claims (1)

(57) [Claims] 1. A housing (1) and a first sleeve (2).
, A joint (3), a first suction pad (4), a second suction pad (5), a second sleeve (6), and a joint (7).
And a small cylinder (8), wherein the housing (1) supports the entire vacuum suction device and is attached to a handling device, and the first sleeve (2) slides on the housing (1). Said joint (3) fixed to said first sleeve (2)
The collar of the first sleeve (2), which is larger than the outer shape of the first sleeve (2), prevents the sleeve from coming off from the housing (1), and
The first suction pad (4) is attached to the tip, the joint (3) is for connecting a tube and evacuating, and the first suction pad (5) is a small suction object ( 9), the second suction pad (5) is coaxial with the first suction pad (4), and has a diameter larger than that of the first suction pad (4). , Outside the first suction pad (4), for adsorbing a large object (10), and the second sleeve (6) is arranged around the first sleeve (2). Sliding and fixed to the joint (7),
The second suction pad (5) is attached to the tip thereof, the joint (7) is connected to the small cylinder (8), and the small cylinder (8) is connected to the housing (1). ), The shaft of which is lowered to push down the second sleeve (7) fixed to the joint (8), and the small suction object is fixed by the first suction pad (4). (9) is vacuum-sucked, and the second suction pad (5) outside the first suction pad (4) is held in the second sleeve (6).
A vacuum suction device characterized in that the second suction pad (5) is lowered below the first suction pad (4) by pressing down, and the large suction object (10) is suctioned.