CN218507033U

CN218507033U - Vacuum chuck capable of automatically matching material size

Info

Publication number: CN218507033U
Application number: CN202221456770.3U
Authority: CN
Inventors: 刘林辉
Original assignee: Sihui Dameidi New Material Co ltd
Current assignee: Sihui Dameidi New Material Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2023-02-21
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a vacuum chuck capable of automatically matching the size of a material, which comprises a chuck main body and a plurality of suction nozzles arranged at the bottom of the chuck main body, wherein an inner cavity is arranged in the chuck main body; the suction nozzle comprises a through hole, a cavity and a suction hole which are sequentially communicated from top to bottom; a bead body used for closing or opening the through hole is arranged in the cavity; the upper end of the through hole is communicated with the inner cavity. This vacuum chuck can adsorb the material of equidimension not, and the suction nozzle that has the material laminating can effectively adsorb the material, and the suction nozzle that does not laminate the material then can self-closing suction nozzle, guarantees vacuum chuck's negative pressure unchangeable to can the automatic adaptation material size, and the material piece of disconnection also can adsorb, improved production efficiency.

Description

Vacuum chuck capable of automatically matching material size

Technical Field

The utility model relates to a vacuum chuck technical field, concretely relates to automatic match vacuum chuck of material size.

Background

The vacuum chuck is a common component in various devices and is used for sucking a product to make the product to be circulated among various working procedures and stations. Since no scratch is left on the surface of the object, it is widely used in various vacuum holding apparatuses. Vacuum chucks are often used in industrial processes to transport objects.

In the planar vacuum chuck in the prior art, generally, one negative pressure system controls all suction nozzles on the vacuum chuck, and all the suction nozzles are opened when materials are conveyed, as shown in fig. 1, the size of the materials conveyed by the vacuum chuck must correspond to the size of the vacuum chuck, and the applicability is very low; if the adsorbed materials are too small, part of the suction nozzles (11) do not adsorb the materials, the adsorption capacity of other suction nozzles (11) is affected, and the materials fall; in addition, when the materials are broken, part of the suction nozzles (11) can not adsorb the materials, the adsorption capacity is reduced, broken fragments can not be adsorbed together, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that above-mentioned exists, provide an automatic match vacuum chuck of material size, this vacuum chuck can adsorb the material of equidimension not, has the suction nozzle of material laminating can effectively adsorb the material, and the suction nozzle of the material of not laminating then can self-closing suction nozzle, guarantees that vacuum chuck's negative pressure is unchangeable to can adapt to the material size automatically, and the material piece of disconnection also can adsorb, improved production efficiency.

The purpose of the utility model is realized through the following technical scheme:

a vacuum chuck capable of automatically matching the size of a material comprises a chuck main body and a plurality of suction nozzles arranged at the bottom of the chuck main body, wherein an inner cavity is formed in the chuck main body; wherein, the first and the second end of the pipe are connected with each other,

the suction nozzle comprises a through hole, a cavity and a suction hole which are sequentially communicated from top to bottom; a bead body for closing or opening the through hole is arranged in the cavity; the upper end of the through hole is communicated with the inner cavity.

The working principle of the vacuum chuck capable of automatically matching the size of the material is as follows:

when no negative pressure exists in the inner cavity, the beads are located at the lower end of the cavity under the self gravity and abut against the upper end of the suction hole, the through hole is in an open state, when materials need to be conveyed, the suction nozzle at the bottom of the suction disc main body is attached to the materials, namely, the lower end of the suction hole is attached to the materials, the negative pressure system is started, the suction nozzle attached to the materials has negative pressure in the inner cavity, the through hole and the cavity at the moment when the negative pressure system is started, the materials are attached to the lower end of the suction hole in a closed mode, so that the suction hole generates negative pressure, the suction hole can absorb the materials immediately, and during absorption, the suction nozzle attached to the materials always keeps suction force to absorb the materials; the suction nozzle that does not have with the material laminating is under the continuous effect of negative pressure, outside gas can be along inhaling the hole, the cavity, the through-hole forms the air current and gets into the inner chamber, under the drive of air current, the pearl body receives the air current effect, promote the upward movement of pearl body, support the lower extreme at the through-hole at last tightly, closely laminate with the through-hole, close the through-hole, thereby the suction nozzle has been closed, at this moment, the suction nozzle that does not adsorb the material all keeps the encapsulated situation with the suction nozzle that adsorbs the material, guarantee that the negative pressure of inner chamber is unchangeable, and then guarantee the suction nozzle adsorb the material.

In a preferred embodiment of the present invention, the diameter of the chamber is larger than the diameter of the bead. Its aim at, guaranteed on the one hand the pearl body can move in the cavity, on the other hand, with the suction nozzle of material laminating, because the diameter of its cavity is greater than the diameter of the pearl body, in the instant of negative pressure system opening, under the effect of suction, the pearl body is the micro motion, make and inhale hole and cavity intercommunication, inhale the downthehole negative pressure that has, the laminating is inhaled the material in hole and can be inhaled the absorption firmly of hole, guaranteed the cavity and inhale the hole intercommunication, thereby can guarantee the pearl body and be the micro motion in the cavity, can not close the through-hole, thereby guarantee that whole suction nozzle has the negative pressure, can adsorb the material.

Preferably, the diameter of the through hole and the diameter of the suction hole are both smaller than the diameter of the cavity; the diameters of the through hole and the suction hole are smaller than the diameter of the bead body. Adopt above-mentioned preferred scheme, its aim at, guarantee that the pearl body can close the through-hole, also can prevent simultaneously that the pearl body from following to inhale and dropping in the hole.

Preferably, the lower end of the through hole is provided with a gradually enlarged hole, and the diameter of the gradually enlarged hole is gradually increased along the vertical downward direction. Through setting up gradually reaming, can make the pearl body can with gradually the perfect laminating of reaming pore wall, further improved the leakproofness of pearl body with gradually reaming.

Preferably, the sucking disc main part includes roof, bottom plate and sets up curb plate all around, the space that encloses between roof, bottom plate and the curb plate constitutes above-mentioned inner chamber, the suction nozzle sets up on the bottom plate. Through setting up above-mentioned structure for the sucking disc main part becomes very compact, simple to operate.

Preferably, the bottom of the bottom plate is sequentially provided with a metal sheet and a sponge layer from top to bottom, and the metal sheet is adhered to the bottom plate. By adopting the preferred scheme, the sponge layer has certain buffering property when absorbing uneven materials, so that the sponge layer can be tightly attached to the materials, the air tightness during absorption is ensured, and the absorption effect is improved; in addition, through setting up the sheetmetal, when needing to be changed the sponge layer, separate through sheetmetal and bottom plate, realize the overall separation on sheetmetal and sponge layer, can not destroy the structure on sponge layer like this, also prevent simultaneously that the sponge layer from remaining on the bottom plate.

Preferably, the metal sheet and the sponge layer are provided with openings at positions corresponding to the suction nozzle, and the openings are communicated with the suction holes; wherein, the opening of the sponge layer is a strip hole. The purpose is that when the opening is arranged to adsorb materials, the opening can be ensured to have negative pressure, so that the material adsorption effect is achieved; the trompil on sponge layer is rectangular hole, can enlarge the area in rectangular hole like this, when adsorbing the material, can increase the adsorption area to the material, and the adsorption material becomes more stable.

Preferably, the side plate is provided with an air receiving port, one end of the air receiving port is communicated with the inner cavity, and the other end of the air receiving port is communicated with the negative pressure system.

Preferably, a plurality of the suction nozzles are distributed on the bottom plate in a matrix.

Preferably, the top plate, the bottom plate and the side plates positioned at the front end and the rear end are integrally arranged to form a square frame body; the side plates at the left end and the right end are connected with the two ends of the square frame body through sealing rings. By adopting the structure, the structure is more compact, and the sealing performance of the inner cavity is improved.

Compared with the prior art, the utility model following beneficial effect has:

1. the vacuum chuck capable of automatically matching the size of the material has the advantages that the beads are arranged in the cavity, the inner cavity, the through hole and the cavity have negative pressure at the moment that the suction nozzle attached to the material is opened in the negative pressure system, the material is tightly attached to the lower end of the suction hole, the suction hole is sealed, the suction hole also generates negative pressure, and the suction hole can immediately adsorb the material; and the suction nozzle that does not laminate with the material is under the continuous effect of negative pressure, thereby the pearl body receives the air current effect of through-hole and overcomes self gravity upward movement, supports tightly at the lower extreme of through-hole at last, closes the through-hole, closely laminates with the through-hole to close the suction nozzle, guarantee vacuum chuck's negative pressure unchangeable, consequently, this vacuum chuck can adsorb the material of equidimension not, can match the size of material automatically, the suitability is high.

2. The utility model provides an automatic match vacuum chuck of material size owing to do not have the suction nozzle of laminating with the material and can close the through-hole automatically, also can adsorb the material piece that breaks off in the production process, has improved the efficiency of production.

Drawings

FIG. 1 is a schematic diagram of a planar vacuum chuck according to the prior art.

Fig. 2 is a perspective view of a specific embodiment of the vacuum chuck for automatically matching the size of the material in the present invention.

Fig. 3 is a schematic view of the internal structure of the vacuum chuck of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a bottom view of the vacuum chuck of the present invention.

Fig. 6 is an exploded view of the suction cup main body of the present invention.

Detailed Description

In order to make those skilled in the art understand the technical solution of the present invention well, the present invention will be further described below with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Example 1

Referring to fig. 2-4, the embodiment discloses a vacuum chuck capable of automatically matching the size of a material, which includes a chuck main body 1 and a plurality of suction nozzles arranged at the bottom of the chuck main body 1, wherein an inner cavity 2 is arranged in the chuck main body 1; the suction nozzle comprises a through hole 3, a cavity 4 and a suction hole 5 which are sequentially communicated from top to bottom; a bead body 6 for closing or opening the through hole 3 is arranged in the chamber 4; the upper end of the through hole 3 is communicated with the inner cavity 2; when the inner cavity 2 has no negative pressure, the bead body 6 is tightly attached to the suction hole 5 under the action of self gravity.

Referring to fig. 2 to 4, in the vacuum chuck automatically matching the size of the material in the embodiment, the bead 6 is arranged in the chamber 4, the suction nozzle attached to the material has negative pressure in the inner cavity 2, the through hole 3 and the chamber 4 at the moment when the negative pressure system is opened, and the material is tightly attached to the lower end of the suction hole 5, so that the suction hole 5 is sealed, the suction hole 5 also generates negative pressure, and the suction hole 5 can immediately adsorb the material; and do not have the suction nozzle of laminating with the material under the continuous effect of negative pressure, thereby the pearl body 6 receives the air current effect of through-hole 3 and overcomes self gravity upward movement, supports tightly at the lower extreme of through-hole 3 at last, closely laminates with through-hole 3, closes through-hole 3 to close the suction nozzle, guaranteed vacuum chuck's negative pressure is unchangeable, consequently, this vacuum chuck can adsorb the not material of equidimension, can match the size of material automatically, the suitability is high.

Referring to fig. 2 to 4, in the vacuum chuck capable of automatically matching the size of the material in the embodiment, since the suction nozzle which is not attached to the material can automatically close the through hole 3, broken material fragments can be adsorbed in the production process, and the production efficiency is improved.

Referring to fig. 4, the diameter of the chamber 4 is larger than the diameter of the beads 6. Its aim at, guaranteed on the one hand that the pearl body 6 can move in cavity 4, on the other hand, with the suction nozzle of material laminating, because the diameter of its cavity 4 is greater than the diameter of pearl body 6, in the moment that negative pressure system opened, under the effect of suction, pearl body 6 is the micro motion, make suction hole 5 and cavity 4 intercommunication, suction hole 5 is last to have the negative pressure, the material that hole 5 was inhaled in the laminating can be inhaled the absorption firmly of hole 5, cavity 4 and suction hole 5 intercommunication have been guaranteed, thereby can guarantee that pearl body 6 is the micro motion in cavity 4, can not close through-hole 3, thereby guarantee that whole suction nozzle has the negative pressure, can adsorb the material.

Referring to fig. 4, the diameter of the through hole 3 and the diameter of the suction hole 5 are both smaller than the diameter of the chamber 4; the diameters of the through hole 3 and the suction hole 5 are smaller than the diameter of the bead body 6. With the above preferred solution, the purpose is to ensure that the beads 6 can close the through holes 3, and at the same time prevent the beads 6 from falling from the suction holes 5.

Specifically, the chamber 4 is 8mm high and 6mm in diameter, and the through hole 3 is 4mm in diameter; the beads 6 are 5.5mm in diameter and weigh 0.695g.

Referring to fig. 4, the suction hole 5 is a triangular hole, and the diameter of the suction hole 5 is gradually reduced in a vertically downward direction. Through setting up the triangle hole, on the one hand can make the pearl body 6 can with inhale the pore wall perfect adaptation of hole 5, on the other hand, can guarantee under the state that does not have the negative pressure, the pearl body 6 can keep on inhaling the position of hole 5.

Referring to fig. 4, the lower end of the through hole 3 is provided with a gradually expanding hole 3-1, and the diameter of the gradually expanding hole 3-1 is gradually increased along the vertical downward direction. By arranging the gradually-enlarged hole 3-1, the bead body 6 can be perfectly attached to the hole wall of the gradually-enlarged hole 3-1, and the sealing performance of the bead body 6 and the gradually-enlarged hole 3-5 is further improved.

Referring to fig. 3, the suction cup main body 1 includes a top plate 1-1, a bottom plate 1-2 and side plates 1-3 arranged on the periphery, a space enclosed among the top plate 1-1, the bottom plate 1-2 and the side plates 1-3 forms the inner cavity 2, and the suction nozzle is arranged on the bottom plate 1-2. Through setting up above-mentioned structure for sucking disc main part 1 becomes very compact, simple to operate.

Referring to fig. 2-4, a metal sheet 7 and a sponge layer 8 are sequentially arranged at the bottom of the bottom plate 1-2 from top to bottom, and the metal sheet 7 is adhered to the bottom plate 1-2. By adopting the preferred scheme, the sponge layer 8 has certain buffering property when uneven materials are adsorbed, so that the sponge layer 8 can be tightly attached to the materials, the air tightness during adsorption is ensured, and the adsorption effect is improved; in addition, by arranging the metal sheet 7, when the sponge layer 8 needs to be replaced, the metal sheet 7 is separated from the bottom plate 1-2, so that the metal sheet 7 is separated from the sponge layer 8 integrally, the structure of the sponge layer 8 cannot be damaged, and the sponge layer 8 is prevented from remaining on the bottom plate 1-2.

Referring to fig. 3-5, the metal sheet 7 and the sponge layer 8 are provided with openings 9 at positions corresponding to the suction nozzles, and the openings 9 are communicated with the suction holes 5; wherein, the open pore 9 of the sponge layer 8 is a long hole. The purpose is that when the opening 9 is arranged to adsorb materials, the opening 9 can be ensured to have negative pressure, so that the material adsorption effect is achieved; the trompil 9 of sponge layer 8 is rectangular hole, can enlarge rectangular hole's area like this, when the adsorption material, can increase the adsorption area to the material, and the adsorption material becomes more stable.

Referring to fig. 2-3, an air receiving port 10 is provided on the side plate 1-3, one end of the air receiving port 10 is communicated with the inner cavity 2, and the other end is communicated with a negative pressure system. The negative pressure system is a compressor, and the negative pressure in the inner cavity is guaranteed.

Referring to fig. 5, a plurality of the suction nozzles are distributed in a matrix on the base plate 1-2.

Referring to fig. 6, the top plate 1-1, the bottom plate 1-2 and the side plates 1-3 at the front and rear ends are integrally arranged to form a square frame 11; the side plates 1-3 at the left and right ends are connected with the two ends of the square frame body 11 through sealing rings. By adopting the structure, the structure is more compact, and the sealing performance of the inner cavity 2 is improved.

Referring to fig. 2 to 4, the working principle of the vacuum chuck for automatically matching the size of the material is as follows:

when no negative pressure exists in the inner cavity 2, the bead body 6 is positioned at the lower end of the cavity 4 under the self gravity and abuts against the upper end of the suction hole 5, the through hole 3 is in an open state, when materials need to be conveyed, a suction nozzle at the bottom of the suction disc main body 1 is attached to the materials, namely, the lower end of the suction hole 5 is attached to the materials, a negative pressure system is started, the inner cavity 2, the through hole 3 and the cavity 4 have negative pressure at the moment when the negative pressure system is started, the materials are attached to the lower end of the suction hole 5, the suction hole 5 is sealed, so that the suction hole 5 also generates negative pressure, the suction hole 5 can immediately adsorb the materials, and when adsorption is carried out, the suction nozzle attached to the materials always keeps suction force to adsorb the materials; the suction nozzle that does not laminate with the material is under the continuous effect of negative pressure, and outside gas can form the air current along inhaling hole 5, cavity 4, through-hole 3 and get into inner chamber 2, and under the drive of air current, the pearl body 6 receives the air current effect, promotes the upward movement of pearl body 6, supports the lower extreme at through-hole 3 at last tightly, closes through-hole 3 to closed the suction nozzle, guaranteed that the negative pressure in the inner chamber 2 is unchangeable, and then guaranteed that the suction nozzle adsorbs the material.

The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A vacuum chuck capable of automatically matching the size of a material is characterized by comprising a chuck main body and a plurality of suction nozzles arranged at the bottom of the chuck main body, wherein an inner cavity is formed in the chuck main body; wherein the content of the first and second substances,

the suction nozzle comprises a through hole, a cavity and a suction hole which are sequentially communicated from top to bottom; a bead body for closing or opening the through hole is arranged in the cavity; the upper end of the through hole is communicated with the inner cavity;

the sucking disc main body comprises a top plate, a bottom plate and side plates arranged on the periphery, the space enclosed among the top plate, the bottom plate and the side plates forms the inner cavity, and the suction nozzle is arranged on the bottom plate;

the bottom of the bottom plate is sequentially provided with a metal sheet and a sponge layer from top to bottom, and the metal sheet is adhered to the bottom plate.

2. The vacuum chuck for automatically matching material sizes as claimed in claim 1, wherein the diameter of the chamber is larger than the diameter of the beads.

3. The vacuum chuck for automatically matching material size as claimed in claim 2, wherein the diameter of the through hole and the diameter of the suction hole are smaller than the diameter of the chamber; the diameters of the through hole and the suction hole are smaller than the diameter of the bead body.

4. The vacuum chuck for automatically matching material size as claimed in claim 1, wherein the through hole is provided at a lower end thereof with a gradually enlarged hole having a diameter gradually increasing in a vertically downward direction.

5. The vacuum chuck for automatically matching the size of materials as claimed in claim 1, wherein the metal sheet and the sponge layer are provided with openings at positions corresponding to the suction nozzles, and the openings are communicated with the suction holes; wherein, the opening of the sponge layer is a strip hole.

6. The vacuum chuck capable of automatically matching with the size of a material as claimed in claim 1, wherein the side plate is provided with an air inlet, one end of the air inlet is communicated with the inner cavity, and the other end of the air inlet is communicated with the negative pressure system.

7. The vacuum chuck for automatically matching material size as claimed in claim 1, wherein a plurality of said suction nozzles are distributed in a matrix on said bottom plate.

8. The vacuum chuck for automatically matching the size of materials as claimed in claim 1, wherein the top plate, the bottom plate and the side plates at the front and rear ends are integrally arranged to form a square frame; the side plates at the left end and the right end are connected with the two ends of the square frame body through sealing rings.