CN216288364U

CN216288364U - Multi-point type plane vacuum chuck

Info

Publication number: CN216288364U
Application number: CN202123033261.8U
Authority: CN
Inventors: 陈佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-12
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a multipoint type plane vacuum sucker, which relates to the technical field of mechanical production and detection and comprises a sucker main body provided with a plurality of sucking and fixing modules, wherein each sucking and fixing module comprises an air chamber arranged in the sucker main body, a product sucking port arranged on the top surface of the sucker main body and an elastic negative pressure driving assembly arranged between the product sucking port and the air chamber; the air chambers of the solid suction modules are sequentially communicated in a grading manner; the outer side wall of the sucker main body is provided with an outlet provided with a first switch valve and an inlet provided with a second switch valve; the inlet is communicated with the bottom of the first stage air chamber, and the outlet is communicated with the bottom of the last stage air chamber. The suction cup can form negative pressure at a product adsorption port to adsorb a product like the prior art, and can blow air pressure gas into the channel from the inlet under the condition of opening the first switch valve and the second switch valve, blow all water and oil in the channel in a low-pressure environment out from the outlet, so that the maintenance operation is very simple.

Description

Multi-point type plane vacuum chuck

Technical Field

The utility model relates to the technical field of mechanical production and detection, in particular to a multi-point type plane vacuum chuck.

Background

In mechanical production and detection, many conventional clamping methods (such as clamping by a chuck, adhering and positioning, and the like, which may damage or pollute a workpiece) are not suitable, so that a vacuum chuck is adopted to suck and fix a product. At present, for the absorption of efficient realization to the product, a multipoint mode plane vacuum chuck has appeared, this kind of vacuum chuck has set up a plurality of solid modules of inhaling, every inhales solid module all including setting up in the inside air chamber of sucking disc main part, set up in the product of sucking disc main part top surface and adsorb the mouth, set up the elasticity negative pressure drive assembly between product absorption mouth and air chamber, with the air chamber intercommunication and set up the gas port that just has the pneumatic valve at the lateral wall, when needs vacuum adsorption, with the external air exhaust equipment of gas port. The existing multi-point type plane vacuum sucker has the defect that when the sucker is used, water or oil can be remained in an air chamber in a sucker main body, only one air port communicated with the air chamber is arranged except a product adsorption port, the water or the oil in the air chamber needs to be discharged from the only air port every time the water or the oil in the air chamber needs to be discharged, a plurality of auxiliary devices need to be adopted, and the operation and the maintenance are very troublesome.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a vacuum chuck which alleviates the above problems.

In order to alleviate the above problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a multi-point type plane vacuum sucker, which comprises a sucker main body provided with a plurality of sucking and fixing modules, wherein each sucking and fixing module comprises an air chamber arranged in the sucker main body, a product sucking port arranged on the top surface of the sucker main body and an elastic negative pressure driving assembly arranged between the product sucking port and the air chamber;

the air chambers of the solid suction modules are sequentially communicated in a grading manner;

the outer side wall of the sucker main body is provided with an outlet provided with a first switch valve and an inlet provided with a second switch valve;

the inlet is communicated with the bottom of the first stage air chamber, and the outlet is communicated with the bottom of the last stage air chamber.

In a preferred embodiment of the present invention, the air chamber is divided into a front-stage secondary air chamber group and a rear-stage secondary air chamber group, the last-stage air chamber of the front-stage secondary air chamber group is communicated with the first-stage air chamber of the rear-stage secondary air chamber group through a passage pipe provided with a third on/off valve, and the passage pipe is located outside the suction cup main body.

In a preferred embodiment of the present invention, a protection plate is disposed on a top of the suction cup main body, the protection plate is provided with through holes vertically arranged, the through holes are aligned to the product suction ports in a one-to-one correspondence, and except for the through holes, other parts of a bottom surface of the protection plate except for the through holes are in sealing fit with the suction cup main body.

In a preferred embodiment of the present invention, a rubber pad covers the top surface of the protection plate, and the through hole extends through the rubber pad.

Compared with the prior art, the utility model has the beneficial effects that:

1) the air chambers in the suction disc main body are sequentially communicated according to the rank sequence, namely a channel consisting of the air chambers is formed, the channel is connected with an inlet and an outlet provided with switch valves, and by controlling the switch valves, not only can negative pressure be formed at a product adsorption port to adsorb products like the prior art, but also air pressure gas can be blown into the channel from the inlet under the condition that a first switch valve and a second switch valve are opened, all water and oil in the channel in a low-pressure environment are discharged from the outlet, and the maintenance operation is very simple;

2) a third switch valve is arranged between the air chambers, so that all product adsorption ports and part of product adsorption ports can be selected, and the use is more flexible;

3) the protective plate is designed, so that the sucker main body is not easily damaged when the part is drilled;

4) the protection shield is provided with a rubber pad which can be used for better sealing and can prevent the vacuum leakage between the workpiece to be processed and the product adsorption port.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic perspective view of a multi-point planar vacuum chuck according to the present invention;

FIG. 2 is a schematic view in section taken along line C-C of FIG. 1;

in the figure: the method comprises the following steps of 1-a sucker main body, 2-an outlet, 3-a first switch valve, 4-an inlet, 5-a second switch valve, 6-a third switch valve, 7-a channel pipe, 8-a protective plate, 9-a rubber pad, 10-a through hole, 11-a bottom plate, 12-a pressing plate slot, 13-a gas pressure gauge, 14-an elastic negative pressure driving assembly, 15-a product adsorption port and 16-an air chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present invention provides a multi-point planar vacuum chuck, which includes a chuck main body 1 having a plurality of suction modules, wherein each suction module includes an air chamber 16 disposed inside the chuck main body 1, a product suction port 15 opened on the top surface of the chuck main body 1, and an elastic negative pressure driving assembly 14 disposed between the product suction port 15 and the air chamber 16; the air chambers 16 of the solid suction modules are sequentially communicated in grades; the outer side wall of the sucker main body 1 is provided with an outlet 2 provided with a first switch valve 3 and an inlet 4 provided with a second switch valve 5; the inlet 4 communicates with the bottom of the first stage air chamber 16 and the outlet 2 communicates with the bottom of the last stage air chamber 16.

In the present invention, the stepped structure of the air chamber 16 and the elastic negative pressure driving assembly 14 are both the prior art, and only the elastic negative pressure driving assembly 14 will be briefly described herein, where the elastic negative pressure driving assembly 14 includes a spring, a piston, a sealing ring, a snap ring, and the like, and when the vacuum is pumped, the piston moves downward against the spring force, a part of the space above the piston increases, the air pressure decreases, a negative pressure is formed, and the product at the product adsorption port 15 is firmly adsorbed.

The use method of the multi-point type plane vacuum chuck for adsorbing the product comprises the following steps:

a product is placed above the sucker main body 1, and the product is in sealing fit with the product adsorption port 15;

closing the second switch valve 5, opening the first switch valve 3, and connecting the outlet 2 with air extraction equipment;

and starting the air extraction equipment, and moving the piston of the elastic negative pressure driving assembly 14 downwards to enable the product adsorption port 15 to form negative pressure so as to firmly adsorb the product.

The utility model discloses a method for removing oil and water in a multi-point type plane vacuum chuck, which comprises the following steps:

after the adsorbed product is processed, the outlet 2 is exposed under the condition that the second switch valve 5 is opened, the air chamber 16 is in a negative pressure state relative to the outside, air pressure gas is blown into the channel from the inlet 4, and water and oil in a low-pressure environment are blown out from the outlet 2, so that the maintenance operation is very simple.

In an optional embodiment of the utility model, the air chamber 16 is divided into two parts, namely a front-stage secondary air chamber 16 group and a rear-stage secondary air chamber 16 group, the last-stage air chamber 16 of the front-stage secondary air chamber 16 group is communicated with the first-stage air chamber 16 of the rear-stage secondary air chamber 16 group through a channel pipe 7 provided with a third on-off valve 6, and the channel pipe 7 is positioned outside the sucker main body 1.

When adsorbing products, only the air chambers 16 communicated with the outlet 2 can work normally, and if all the air chambers 16 can work normally, the third switch valve 6 is opened.

In an alternative embodiment of the utility model, the top of the sucker body 1 is provided with a protective plate 8, the protective plate 8 is provided with through holes 10 which are vertically arranged, the through holes 10 are correspondingly opposite to the product adsorption ports 15, and the bottom of the protective plate 8 except the through holes 10 is in sealing fit with the sucker body 1 except the through holes 10.

In the present embodiment, the top surface of the protection plate 8 is covered with the rubber pad 9, and the through hole 10 extends through the rubber pad 9.

In this embodiment, the through hole 10 is equivalent to an extension section of the product adsorption port 15, and the product is placed on the rubber mat 9 and can be directly adsorbed through the through hole 10.

In an alternative embodiment of the present invention, the bottom of the suction cup body 1 is detachably and fixedly connected with a bottom plate 11, and the bottom plate 11 and the side of the suction cup body 1 form at least two pressing plate insertion grooves 12.

In the present embodiment, the pressure plate insertion slot 12 is used for inserting a pressure plate to fix the suction cup main body 1 at a processing position of the workpiece processing apparatus.

In an alternative embodiment of the utility model, the side wall of the suction cup main body 1 is provided with an air pressure gauge 13, and an air pressure detection port of the air pressure gauge 13 is communicated with the air chamber 16.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-point plane vacuum chuck comprises a chuck main body provided with a plurality of suction modules, wherein each suction module comprises an air chamber arranged in the chuck main body, a product suction port arranged on the top surface of the chuck main body, and an elastic negative pressure driving assembly arranged between the product suction port and the air chamber,

2. The multipoint type flat vacuum chuck according to claim 1, wherein said air chamber is divided into two parts of a front-stage sub-chamber group and a rear-stage sub-chamber group, and said last-stage air chamber of said front-stage sub-chamber group is communicated with said first-stage air chamber of said rear-stage sub-chamber group through a passage pipe provided with a third on/off valve, said passage pipe being located outside said chuck main body.

3. The multi-point planar vacuum chuck according to claim 1, wherein a protection plate is disposed on the top of the chuck body, the protection plate has vertically disposed through holes, the through holes are aligned with the product suction ports in a one-to-one correspondence, and except for the through holes, other portions of the bottom surface of the protection plate except for the through holes are in sealing engagement with the chuck body.

4. The multi-point planar vacuum chuck according to claim 3, wherein the top surface of the protection plate is covered with a rubber pad, and the through hole extends through the rubber pad.

5. The multi-point planar vacuum chuck according to claim 1, wherein a base plate is detachably and fixedly attached to the bottom of the chuck body, and the base plate and the side of the chuck body form at least two pressing plate insertion grooves.

6. The multi-point planar vacuum chuck according to claim 1, wherein the sidewall of the chuck body is provided with a barometer, and an air pressure detection port of the barometer is communicated with the air chamber.