CN111791161A

CN111791161A - Vacuum adsorption base

Info

Publication number: CN111791161A
Application number: CN202010698814.2A
Authority: CN
Inventors: 邹友栓
Original assignee: Individual
Current assignee: Shenzhen Junhao Medical Blister Packaging Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-20
Anticipated expiration: 2040-07-20
Also published as: CN111791161B

Abstract

The invention discloses a vacuum adsorption base which comprises a workpiece to be processed, wherein the workpiece is placed on the base, a plurality of through holes are formed in the base, the through holes are communicated with each other through surface communicating grooves, a cavity is formed in the base, the inner wall of the cavity is fixedly connected with a main pipe, a first piston block is symmetrically and slidably connected in the main pipe, the main pipe is fixedly communicated with a flow dividing pipe through a communicating pipe, the flow dividing pipe is arranged in a transversely-vertically staggered mode, a plurality of vertical pipes are fixedly communicated with the flow dividing pipe at equal intervals, a second piston block is slidably connected in each vertical pipe, and a plugging mechanism is arranged on the second piston block. The base is suitable for self-adjustment of workpieces to be processed with different sizes, the adsorption effect is better under the condition that the output power of the vacuum pump is not changed, the ejector rod blocks the through hole when the vacuum pump is not used in daily life, sundries can be effectively prevented from falling into the through hole to form blockage, and the maintenance burden of workers is reduced.

Description

Vacuum adsorption base

Technical Field

The invention relates to the technical field of vacuum adsorption, in particular to a vacuum adsorption base.

Background

According to the Chinese patent publication numbers: CN205950498U, a vacuum adsorption device, includes negative pressure cavity and adsorption plate, the adsorption plate is sealed to be fixed on the opening of negative pressure cavity, in this technical scheme, the adsorption plate includes the conducting strip of a plurality of unsmooth crisscross parallel arrangement, be equipped with on the conducting strip a plurality of with the adsorption hole of the intercommunication of negative pressure cavity. The vacuum adsorption device is matched with a transmission belt of a polishing mechanism for use, through holes corresponding to adsorption holes in the guide strips of the adsorption plate are formed in the belt, when a workpiece is fixed, an air pump is started, the adsorption holes are matched with the belt through holes to adsorb the polished workpiece, after polishing is finished, air is introduced, and the adsorption holes loosen the workpiece. The device has simple structure and large adsorption force.

However, because the sizes of different metal parts are different and the number of the apertures of the adsorption plate is not changed, when the bottom area is smaller and smaller during vacuum adsorption, the aperture of the adsorption plate without an object is in an open leakage state, so that the adsorption effect is not obvious, and the defect can be compensated by increasing the power of the vacuum pump.

Disclosure of Invention

The invention aims to solve the defect that in the prior art, when the bottom area is smaller during vacuum adsorption, the adsorption effect is not obvious because the pore diameter of an object which is not placed on an adsorption plate is in an open leakage state, and the defect that the power of a vacuum pump is increased to compensate the defect is usually solved, so that a vacuum adsorption base is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vacuum adsorption base comprises a workpiece to be machined, wherein the workpiece is placed on the base, a plurality of through holes are formed in the base, the through holes are communicated with each other through surface communicating grooves, a cavity is formed in the base, a main pipe is fixedly connected to the inner wall of the cavity, first piston blocks are symmetrically and slidably connected in the main pipe, the main pipe is fixedly communicated with a flow dividing pipe through a communicating pipe, the flow dividing pipe is arranged in a transverse and vertical staggered mode, a plurality of vertical pipes are fixedly communicated with the flow dividing pipe at equal intervals, a second piston block is slidably connected in each vertical pipe, a plugging mechanism is arranged on each second piston block and comprises an ejector rod and a sealing plug, the ejector rod is fixedly connected to the second piston block, the sealing plug is fixedly inserted on the ejector rod, and fluid is filled in the main pipe, the flow dividing;

the vacuum adsorption base comprises a balance box, the balance box is fixedly connected to the bottom wall of the cavity, the balance box is communicated with the main pipe, the bottom side of the balance box is fixedly communicated with a pressure relief pipe and a balance pipe respectively, a one-way valve is arranged on the balance pipe, and an adjusting valve is arranged on the pressure relief pipe.

Preferably, the through holes are distributed in a rectangular array, the ejector rods are arranged in one-to-one correspondence with the through holes, and the diameters of the bottom ends and the top ends of the ejector rods are gradually reduced.

Preferably, the two sides of the base are symmetrically and fixedly communicated with vacuum exhaust pipes, and control valves are arranged on the vacuum exhaust pipes.

Preferably, the diameter of the sealing plug is larger than the diameter of the through hole.

Compared with the prior art, the invention has the beneficial effects that:

1. when carrying out vacuum adsorption, directly will treat that the processing work piece is placed on the base, with the ejector pin downstream of treating processing work piece ground contact, treat the through-hole of processing work piece bottom surface this moment and be in the open mode, and other open the through-hole of leaking is in the closed condition, when air passes through the vacuum exhaust tube and discharges fast in the cavity, air in the balance box is for balanced cavity internal gas pressure, promote two first piston piece and slide mutually oppositely, make the fluid in every riser rise, thereby let the sealing plug support tight through-hole and guarantee sealed effect, the air current can only prolong surface intercommunication groove entering cavity this moment in, negative pressure adsorption effect is more obvious in the cavity.

2. This base has adapted to the self-control of treating the processing work piece of different size sizes, and under the unchangeable circumstances of vacuum pump output, adsorption effect is better to the through-hole is plugged up to the ejector pin when daily not using, can effectively avoid debris to fall into and form the jam in the through-hole, has alleviateed staff's maintenance burden.

Drawings

Fig. 1 is a schematic front structural view of a vacuum adsorption base according to the present invention;

fig. 2 is a schematic top view of a vacuum absorption base according to the present invention.

In the figure: 1-base, 2-balance box, 3-main pipe, 4-first piston block, 5-pressure relief pipe, 6-balance pipe, 7-one-way valve, 8-ejector rod, 9-sealing plug, 10-shunt pipe, 11-vertical pipe, 12-second piston block, 13-communicating pipe, 14-through hole, 15-control valve, 16-vacuum exhaust pipe, 17-workpiece to be processed, 18-surface communicating groove.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, a vacuum adsorption base, including placing the work piece 17 of treating on base 1, a plurality of through-holes 14 have been seted up on base 1, be linked together through surperficial intercommunication groove 18 between a plurality of through-holes 14, a plurality of through-holes 14 are the rectangular array and distribute, ejector pin 8 sets up with through-hole 14 one-to-one, 8 bottom of ejector pin to top diameter reduce gradually, ejector pin 8 blocks up through-hole 14 when daily not using, can effectively avoid debris to fall into and form the jam in through-hole 14, staff's maintenance burden has been alleviateed, when ejector pin 8 moves down, through-hole 14 opens gradually, the cavity has been seted up in base 1, cavity inner wall fixedly connected with is responsible for 3, be responsible for 3 internal symmetry sliding connection of.

Be responsible for 3 through the fixed intercommunication of communicating pipe 13 and have shunt tubes 10, shunt tubes 10 violently erects crisscross setting, equidistant fixed intercommunication has a plurality of standpipe 11 on shunt tubes 10, sliding connection has second piston block 12 in every standpipe 11, be equipped with shutoff mechanism on the second piston block 12, shutoff mechanism includes ejector pin 8 and sealing plug 9, ejector pin 8 fixed connection is on second piston block 12, the diameter of sealing plug 9 is greater than 14 apertures of through-hole, sealing plug 9 supports through-hole 14 when rising along with this ejector pin 8 and realizes the shutoff, sealing plug 9 is fixed to be alternates on ejector pin 8, be responsible for 3, shunt tubes 10, it has the fluid to all annotate in standpipe 11.

Specifically, the vacuum adsorption base includes surge tank 2, surge tank 2 fixed connection is at the cavity diapire, surge tank 2 is linked together with being responsible for 3, the bottom side of surge tank 2 is fixed the intercommunication respectively has pressure release pipe 5 and surge tank 6, be equipped with check valve 7 on surge tank 6, be equipped with the governing valve on the pressure release pipe 5, the governing valve is used for adjusting 2 internal gas pressures of surge tank, the fixed intercommunication in base 1 both sides symmetry has vacuum exhaust tube 16, be equipped with control valve 15 on the vacuum exhaust tube 16, two sides insert vacuum exhaust tube 16 and make taking out of gas more stable even.

More specifically, the working principle of the invention is as follows: when vacuum adsorption is carried out, a workpiece 17 to be processed is directly placed on a base 1, an ejector rod 8 which is in contact with the ground of the workpiece 17 to be processed moves downwards, at the moment, a through hole 14 at the bottom surface of the workpiece 17 to be processed is in an open state, other open and leaking through holes 14 are in a closed state, when air in a cavity is rapidly exhausted through a vacuum exhaust tube 16, the air in a balance box 2 pushes two first piston blocks 4 to slide back and forth in order to balance the air pressure in the cavity, so that fluid in each vertical tube 11 rises, a sealing plug 9 is tightly abutted to the through hole 14 to ensure a sealing effect, at the moment, the air flow can only enter the cavity along a surface communicating groove 18, the negative pressure adsorption effect in the cavity is more obvious, the base is suitable for self-regulation of the workpieces 17 to be processed with different sizes, the adsorption effect is better under the condition that the output power of a vacuum pump is unchanged, and the, the sundries can be effectively prevented from falling into the through holes 14 to form blockage, and the maintenance burden of workers is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A vacuum adsorption base comprises a workpiece (17) to be processed, which is placed on a base (1), and is characterized in that the base (1) is provided with a plurality of through holes (14) which are communicated with each other through surface communicating grooves (18), a cavity is formed in the base (1), the inner wall of the cavity is fixedly connected with a main pipe (3), the main pipe (3) is internally and symmetrically connected with first piston blocks (4) in a sliding manner, the main pipe (3) is fixedly communicated with a flow dividing pipe (10) through a communicating pipe (13), the flow dividing pipe (10) is arranged in a transverse and vertical staggered manner, the flow dividing pipe (10) is fixedly communicated with a plurality of vertical pipes (11) at equal intervals, each vertical pipe (11) is internally and slidably connected with a second piston block (12), a plugging mechanism is arranged on the second piston block (12), and the plugging mechanism comprises a push rod (8) and a sealing plug (9), the ejector rod (8) is fixedly connected to the second piston block (12), the sealing plug (9) is fixedly inserted into the ejector rod (8), and fluids are injected into the main pipe (3), the shunt pipe (10) and the vertical pipe (11);

the vacuum adsorption base comprises a balance box (2), the balance box (2) is fixedly connected to the bottom wall of the cavity, the balance box (2) is communicated with a main pipe (3), the bottom side of the balance box (2) is fixedly communicated with a pressure relief pipe (5) and a balance pipe (6) respectively, a check valve (7) is arranged on the balance pipe (6), and an adjusting valve is arranged on the pressure relief pipe (5).

2. The vacuum adsorption base of claim 1, wherein the through holes (14) are distributed in a rectangular array, the push rods (8) and the through holes (14) are arranged in a one-to-one correspondence manner, and the diameters of the bottom ends and the top ends of the push rods (8) are gradually reduced.

3. The vacuum adsorption base of claim 1, wherein the base (1) is symmetrically and fixedly communicated with vacuum pumping pipes (16) at two sides, and the vacuum pumping pipes (16) are provided with control valves (15).

4. A vacuum suction foot according to claim 1, characterized in that the diameter of the sealing plug (9) is larger than the diameter of the through hole (14).