CN218913443U

CN218913443U - Suction cup air valve and multipoint vacuum suction cup

Info

Publication number: CN218913443U
Application number: CN202223295455.XU
Authority: CN
Inventors: 许裕雷; 钟俊超
Original assignee: Chengdu Huanyu Feike Technology Co ltd
Current assignee: Chengdu Huanyu Feike Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-25
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a sucking disc air valve and a multipoint vacuum sucking disc, which belong to the technical field of sucking discs and comprise a valve body with a through hole, a valve plug and an elastic piece, wherein the valve plug is positioned in the through hole; an air gap is reserved between the inner wall of the through hole and the valve plug, the valve plug is provided with a large-diameter part and a small-diameter part which are distributed up and down, the end face of the large-diameter part connected with the small-diameter part is a sealing end face, and the valve plug can move up and down in the through hole; the through hole is internally provided with a first step, a second step and a third step from top to bottom in sequence, the first step is used for contacting and sealing with the top surface of the valve plug, the second step is used for contacting and sealing with the sealing end surface of the valve plug, and the third step is used for contacting and sealing with the small-diameter part of the valve plug; the large diameter part of the valve plug is positioned between the first step and the second step, and the elastic piece is positioned between the sealing end surface of the valve plug and the third step. During installation, only the air valve is required to be installed in the cavity of the sucker, modularization and standardization are achieved, assembly is simple and rapid, and efficiency is high.

Description

Suction cup air valve and multipoint vacuum suction cup

Technical Field

The utility model belongs to the technical field of sucking discs, and particularly relates to a sucking disc air valve and a multipoint vacuum sucking disc.

Background

The vacuum sucker adsorbs objects by utilizing the pressure difference between the inside and outside of the sucker, and has wide application in the aspects of storage, logistics, packaging production line and the like. The multipoint vacuum sucker is most widely applied to CNC processing, the adsorption surface of the multipoint vacuum sucker is provided with chambers which are arranged in a matrix, and negative pressure adsorption components are arranged in the chambers one by one to realize the communication between the air extraction equipment and the external workpiece to be adsorbed.

The negative pressure adsorption component in the adsorption chamber of the current vacuum chuck comprises a plurality of parts, during assembly, the dispersed parts are assembled into the chamber one by one, as in the arrangement of parts in the ventilation chamber of the multipoint type planar vacuum chuck disclosed in CN202121343940.2, and the air-tight mechanism in the multipoint type chuck disclosed in CN202122666870.0 are all respectively filled with different parts, so that the function of the negative pressure adsorption component is achieved, the assembly is complicated, the efficiency is low, and the standardization is not facilitated.

Disclosure of Invention

The utility model aims to provide a sucker air valve and a multipoint vacuum sucker, which are used for solving the problems in the prior art.

The technical scheme adopted by the utility model is as follows: a sucking disc air valve comprises a valve body with a through hole, a valve plug and an elastic piece, wherein the valve plug is positioned in the through hole; an air gap is reserved between the inner wall of the through hole and the valve plug, the valve plug is provided with a large-diameter part and a small-diameter part which are distributed up and down, the end face of the large-diameter part connected with the small-diameter part is a sealing end face, and the valve plug can move up and down in the through hole; the through hole is internally provided with a first step, a second step and a third step from top to bottom in sequence, the first step is used for contacting and sealing with the top surface of the valve plug, the second step is used for contacting and sealing with the sealing end surface of the valve plug, and the third step is used for contacting and sealing with the small-diameter part of the valve plug; the large diameter part of the valve plug is positioned between the first step and the second step, and the elastic piece is positioned between the sealing end surface of the valve plug and the third step.

As a further alternative, the outer circumferential surface of the lower end of the small diameter portion of the valve plug is an inverted conical surface, and is in contact sealing with the third step through the inverted conical surface.

As a further alternative, the valve body is a split structure including at least two split bodies, each split body is fixedly connected, and one or two of the first step, the second step and the third step are arranged on the same split body.

As a further alternative, the valve body includes an upper split and a lower split, and an outer circular surface of one of the two is tightly matched with an inner circular surface of the other, the first step is disposed on the upper split, and the second step and the third step are disposed on the lower split.

As a further alternative, the valve plug is a soft rubber plug.

As a further alternative, the valve plug is made of silica gel.

As a further alternative, the outer circumferential surface of the valve body is provided with a sealing ring.

As a further alternative, the top surface of the valve body has a groove in communication with the vent gap.

The utility model also provides a multipoint vacuum chuck comprising the chuck air valve as set forth in any one of the above.

As a further alternative, the suction cup comprises a suction cup body, wherein the top surface of the suction cup body is an adsorption surface, the suction cup body is provided with a plurality of adsorption cavities communicated with the adsorption surface, each adsorption cavity is internally provided with a suction cup air valve and a filter plate positioned above the suction cup air valve, and a sealing ring is arranged between the filter plate and the top surface of the valve body.

The beneficial effects of the utility model are as follows: the valve body through-hole lower extreme is used for being linked together to the bleed end, and then the valve plug along with the evacuation and downward movement, compression elastic component, move to sealing end face and second step butt, path portion and third step butt, realize sealed and get into the pressurize state, make the work piece last adsorbed, and then the valve plug under the effect of elastic component when the pneumatic valve is out of service, top surface and first step butt realize sealedly. Therefore, the air valve is integrated with the related parts absorbed by the negative pressure in the sucker, and only the air valve is required to be installed in the cavity of the sucker during installation, so that the sucker is modularized and standardized, the assembly is simple and quick, and the efficiency is high.

Drawings

FIG. 1 is a schematic diagram of a suction cup air valve according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a suction cup air valve provided in an embodiment of the present utility model in an inactive state;

FIG. 3 is a cross-sectional view of a suction cup air valve provided by an embodiment of the utility model in a state of sucking a workpiece;

FIG. 4 is a top view of a multi-point vacuum chuck provided by an embodiment of the present utility model;

fig. 5 isbase:Sub>A partial cross-sectional view atbase:Sub>A-base:Sub>A in fig. 4.

In the figure: 1-a valve body; 2-through holes; 3-a valve plug; 4-elastic members; 5-ventilation gap; 6, sealing end surfaces; 7-a first step; 8-a second step; 9-a third step; 10-an inverted conical surface; 11-a sealing ring; 12-upper split; 13-lower split; 14-groove; 15-a suction cup body; 16-filter sheet.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

The technical solution provided by the present utility model will be described in detail by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model. In some instances, some embodiments are not described or described in detail as such, as may be known or conventional in the art.

Furthermore, features described herein, or steps in all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments in addition to mutually exclusive features and/or steps. It will be readily understood by those skilled in the art that the steps or order of operation of the methods associated with the embodiments provided herein may also be varied. Any order in the figures and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated that a certain order is required.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling) where appropriate (where no paradox is constructed).

Fig. 1 to 5 show a suction cup air valve provided by an embodiment of the utility model, comprising a valve body 1 with a through hole 2, a valve plug 3 positioned in the through hole 2 and an elastic member 4; a ventilation gap 5 is reserved between the inner wall of the through hole 2 and the valve plug 3, the valve plug 3 is provided with a large-diameter part and a small-diameter part which are distributed up and down, the end surface of the large-diameter part connected with the small-diameter part is a sealing end surface 6, and the valve plug 3 can move up and down in the through hole 2; the through hole 2 is internally provided with a first step 7, a second step 8 and a third step 9 from top to bottom in sequence, wherein the first step 7 is used for contacting and sealing with the top surface of the valve plug 3, the second step 8 is used for contacting and sealing with the sealing end surface 6 of the valve plug 3, and the third step 9 is used for contacting and sealing with the small-diameter part of the valve plug 3; the large diameter portion of the valve plug 3 is located between the first step 7 and the second step 8, and the elastic member 4 is located between the sealing end face 6 of the valve plug 3 and the third step 9.

The through hole 2 of the valve body 1 is communicated with the vacuum pump through the air passage in the sucking disc, when the sucking disc air valve does not work, the valve plug 3 is in abutting contact with the first step 7 under the action of the elastic piece 4, so that sealing is realized, and the elastic piece 4 can adopt a spring; when the vacuum pump is used for pumping, the valve plug 3 compresses the elastic piece 4 to move downwards, so that air below a workpiece to be adsorbed is communicated with an air passage in the sucker through the ventilation gap 5, and when the valve plug 3 moves to the state that the sealing end face 6 is contacted with the second step 8 and the small-diameter part is contacted with the third step 9, the pressure maintaining state is achieved, and the workpiece is continuously and stably adsorbed; when the workpiece is required to be removed, the vacuum pump is turned off, and the valve plug 3 returns under the action of the elastic piece 4, so that the workpiece can be removed.

The outer circle surface of the lower end of the small diameter part of the valve plug 3 is an inverted conical surface 10, and the valve plug is in contact sealing with the third step 9 through the inverted conical surface 10, namely, circumferential sealing is formed between the lower end of the valve plug 3 and the third step 9, and the end face between the sealing end face 6 and the second step 8 is in sealing combination, so that a better sealing and pressure maintaining state is achieved, and a workpiece is continuously, stably and firmly adsorbed. The outer circumferential surface of the valve body 1 is provided with a sealing ring 11 for sealing between the suction cup air valve and the suction cup when the suction cup air valve is installed on the suction cup.

The valve body 1 is of a split structure comprising at least two split bodies, each split body is fixedly connected, one or two of the first step 7, the second step 8 and the third step 9 are arranged on the same split body, and the valve body is convenient to process and assemble. In this embodiment, taking a split structure of two split bodies as an example, the valve body 1 includes an upper split body 12 and a lower split body 13, and an outer circular surface of one of the two is tightly matched with an inner circular surface of the other, the first step 7 is arranged on the upper split body 12, the second step 8 and the third step 9 are arranged on the lower split body 13, the tight fit is utilized to facilitate processing and assembly, the assembly is simple and quick, and the sealing ring 11 can be installed by utilizing a space between the outer circular surfaces of the two after the assembly, so that the structure is simplified.

The valve plug 3 is a soft rubber plug, is better contacted and sealed with three steps, can be specifically made of silica gel and the like, and the valve body 1 can be made of hard rubber and the like. The top surface of the valve body 1 has a groove 14 communicating with the vent gap 5 for slag discharge, since impurities or processing chips may be sucked into the valve body 1 during operation, and discharged through the groove 14 when slag is blown, and one end of the groove 14 may extend to the side of the through hole 2.

The embodiment also provides a multipoint vacuum chuck comprising the chuck air valve. Still include sucking disc main part 15, sucking disc main part 15's top surface is the adsorption surface, and sucking disc main part 15 has a plurality of absorption chambeies that lead to the adsorption surface, every absorption intracavity is installed sucking disc pneumatic valve and the filter plate 16 that is located sucking disc pneumatic valve top are provided with sealing washer 11 between filter plate 16 and the top surface of valve body 1, and impurity etc. in the course of the work can be filtered to filter plate 16.

The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.

Claims

1. The sucking disc air valve is characterized by comprising a valve body with a through hole, a valve plug and an elastic piece, wherein the valve plug is positioned in the through hole; an air gap is reserved between the inner wall of the through hole and the valve plug, the valve plug is provided with a large-diameter part and a small-diameter part which are distributed up and down, the end face of the large-diameter part connected with the small-diameter part is a sealing end face, and the valve plug can move up and down in the through hole; the through hole is internally provided with a first step, a second step and a third step from top to bottom in sequence, the first step is used for contacting and sealing with the top surface of the valve plug, the second step is used for contacting and sealing with the sealing end surface of the valve plug, and the third step is used for contacting and sealing with the small-diameter part of the valve plug; the large diameter part of the valve plug is positioned between the first step and the second step, and the elastic piece is positioned between the sealing end surface of the valve plug and the third step.

2. The suction cup air valve according to claim 1, wherein the outer circular surface of the lower end of the small diameter portion of the valve plug is an inverted conical surface, and is in contact sealing with the third step through the inverted conical surface.

3. The suction cup air valve according to claim 1, wherein the valve body is a split structure comprising at least two split bodies, each split body is fixedly connected, and one or two of the first step, the second step and the third step are arranged on the same split body.

4. The suction cup air valve as claimed in claim 3, wherein the valve body comprises an upper split and a lower split, and an outer circular surface of one of the two is tightly matched with an inner circular surface of the other, the first step is provided on the upper split, and the second step and the third step are provided on the lower split.

5. The suction cup air valve of claim 1, wherein the valve plug is a soft rubber plug.

6. The suction cup air valve of claim 5, wherein the valve plug is silica gel.

7. The suction cup air valve as claimed in claim 1, wherein a sealing ring is provided on an outer circumferential surface of the valve body.

8. The suction cup air valve of claim 1 wherein the top surface of the valve body has a slot in communication with the vent gap.

9. A multipoint vacuum chuck comprising a chuck gas valve according to any one of claims 1-8.

10. The multipoint vacuum chuck according to claim 9, comprising a chuck body having a top surface that is an adsorption surface, the chuck body having a plurality of adsorption chambers leading to the adsorption surface, each adsorption chamber having mounted therein the chuck air valve and a filter positioned above the chuck air valve, a seal ring being disposed between the filter and the top surface of the valve body.