CN110980280A

CN110980280A - Non-contact multi-point type air floatation gripping device

Info

Publication number: CN110980280A
Application number: CN201911188081.1A
Authority: CN
Inventors: 路崧; 黄晓鑫; 黄晓炼; 黄佳丽; 吴江锋; 陆陈兵
Original assignee: Dongguan University of Technology
Current assignee: Dongguan University of Technology
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-04-10

Abstract

The invention relates to a non-contact multi-point air floatation gripping device, which comprises an absorption block, wherein the center of the absorption block is provided with an absorption hole, the upper end of the absorption hole is communicated with a vacuum generator, the absorption block is internally provided with a straight-through groove which is symmetrical about the center and a throttling groove which is symmetrical about the center, the throttling groove is positioned on the outer side of the straight-through groove, the bottom surface of the throttling groove is provided with a throttling hole, the bottom surface of the straight-through groove is provided with the straight-through hole, the throttling hole and the straight-through hole are in one-to-one correspondence in number and position, the throttling groove is connected with an air inlet device, the absorption block is provided with a; the invention provides a non-contact multi-point air floatation grabbing device, which aims to solve the problem that workpieces are damaged due to direct contact between the workpieces and a conveying device in the conveying process of the workpieces, and simultaneously solve the problems that the workpieces are easy to drift, non-contact equipment is high in manufacturing cost and the application range of the traditional non-contact sucker and non-contact conveying device.

Description

Non-contact multi-point type air floatation gripping device

Technical Field

The invention relates to the field of non-contact grabbing equipment, in particular to a non-contact multi-point air floatation grabbing device.

Background

In the conventional contact type conveying process, the friction between the workpiece and the conveying device can damage the workpiece, so that the production cost is unnecessarily paid.

The cost of the traditional non-contact sucker cannot be well controlled, and the application range is limited; the cyclone non-contact sucker can cause workpiece drift due to turbulent flow formed by gas; bernoulli chucks require a large amount of gas flow to form sufficient suction, resulting in expensive use; the non-contact multi-point air floatation gripping device based on ultrasonic levitation is expensive to manufacture due to the need of related equipment for generating ultrasonic waves; the non-contact type carrying device based on magnetic suspension has strong selectivity on materials, and at present, magnetic suspension can only be used for suspension, is mature in technology, but cannot be used for grabbing workpieces.

Disclosure of Invention

The invention provides a non-contact multi-point air floatation grabbing device, which aims to solve the problem that workpieces are damaged due to direct contact between the workpieces and a conveying device in the conveying process of the workpieces, and simultaneously solve the problems that the workpieces are easy to drift, non-contact equipment is high in manufacturing cost and the application range of the traditional non-contact sucker and non-contact conveying device.

In order to achieve the above purpose, the invention adopts the technical scheme that: a non-contact multi-point air floatation grabbing device comprises a suction block, wherein a suction hole is formed in the center of the suction block, a vacuum generator is communicated with the upper end of the suction hole, a straight-through groove and a throttling groove are formed in the suction block, the straight-through groove and the throttling groove are symmetrical about the center, the throttling groove is located on the outer side of the straight-through groove, a throttling hole is formed in the bottom surface of the throttling groove, the straight-through hole is formed in the bottom surface of the straight-through groove, the throttling hole corresponds to the straight-through hole in number and position in a one-to-one mode, an air inlet device is connected to the throttling groove, a butt joint communicated with the straight-through groove is formed in the suction block, and the.

Preferably, the sucking block is formed by locking a top cover and a bottom block through bolts, the through hole and the throttling hole are formed in the bottom block, the butt joint port is formed in the top cover, and the sucking hole penetrates through the top cover and the bottom block.

Preferably, the throttling hole is a threaded hole, the throttling pipe is sleeved in a threaded manner, the upper end of the sleeved throttling pipe is flush with the bottom surface of the throttling groove, and the lower end of the sleeved throttling pipe is flush with the lower surface of the suction block.

Preferably, two sides of the suction block are connected with side vent blocks through bolts, side vent grooves are formed in the side vent blocks and communicated with the middle parts of the throttling grooves on the corresponding sides through first vent holes, and the air inlet device is communicated with the side vent grooves.

Preferably, the rear side of the suction block is connected with a rear vent block through a bolt, a rear vent groove is formed in the rear vent block and is communicated with the two side vent grooves through a second vent hole, an air inlet communicated with the rear vent groove is formed in the center of the rear vent block, and the air inlet is communicated with an air inlet device.

The plurality of non-contact multi-point air-floating gripping devices can be spliced and assembled to enable an air film to be more stable and to be more stable during working, the non-contact multi-point air-floating gripping devices are more stable in air flow compared with non-contact annular surface type air-floating devices, the air film formed by a working surface and a workpiece is more uniform, meanwhile, the plurality of non-contact multi-point air-floating gripping devices can be spliced together for combined use, the non-contact multi-point air-floating gripping devices can meet different working requirements of the workpiece, and the defect that the non-contact annular surface type air-floating gripping devices can only be.

Drawings

FIG. 1 is a front view of a non-contact multi-point air-floatation gripping device;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a cross-sectional view of B-B in fig. 2.

The text labels shown in the figures are represented as: 1. a top cover; 2. a bottom block; 3. a side vent block; 4. a suction hole; 5. a straight through groove; 6. a throttling groove; 7. a throttle pipe; 8. a through hole; 9. a butt joint port; 10. a first vent; 11. a side vent channel; 12. a rear ventilation block; 13. a rear vent channel; 14. a second vent; 15. an air inlet.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 3, the specific structure of the present invention is: a non-contact multi-point air floatation grabbing device comprises an absorption block, wherein an absorption hole 4 is formed in the center of the absorption block, a vacuum generator is communicated with the upper end of the absorption hole 4, a straight-through groove 5 which is symmetrical about the center and a throttling groove 6 which is symmetrical about the center are formed in the absorption block, the throttling groove 6 is located on the outer side of the straight-through groove 5, a throttling hole is formed in the bottom surface of the throttling groove 6, straight-through holes 8 are formed in the bottom surface of the straight-through groove 5, the throttling hole and the straight-through holes 8 correspond in number and position one to one, the throttling groove 6 is connected with an air inlet device, a butt joint 9 communicated with the straight-through groove 5 is formed in the absorption block, and the butt joint 9 is connected with the vacuum generator.

The suction block is placed above a plate to be sucked firstly, then two vacuum generators and an air inlet device work, the vacuum generators communicated with the suction hole 4 can enable the suction hole to generate negative pressure, high-pressure gas introduced by the air inlet device passes through a throttling groove 6 and then is sprayed out from a throttling hole, a vacuum emitter communicated with a butt joint port 9 can enable a straight through groove 5 to generate negative pressure, the gas sprayed out from the throttling hole is sucked away through a straight through hole 8, a gas film is formed above the plate to be sucked to realize non-contact, and a workpiece is sucked through the negative pressure of a central through hole, so that non-contact multi-point air floatation grabbing is realized; because the negative pressure provides the suction force, the gas only provides the thrust, so the cost is low, the workpiece can not drift due to turbulence, the thrust after the gas forms the gas film is superposed with the negative pressure of the central through hole to realize the non-contact multi-point air floatation grabbing of the workpiece, the manufacturing cost of non-contact equipment is reduced, and the workpiece is not easy to drift.

As shown in fig. 1-3, the suction block is formed by locking a top cover 1 and a bottom block 2 through bolts, a through hole 8 and a throttle hole are arranged on the bottom block 2, a butt joint is arranged on the top cover 1, and a suction hole 4 penetrates through the top cover 1 and the bottom block 2.

The suction block is made into a top cover part and a bottom block part, and the parts connected with the vacuum generator are completely concentrated on the top cover, so that the different bottom blocks 2 can be conveniently replaced according to different specifications of objects to be sucked, and the effect of adjusting the forming range of the air film is further achieved.

As shown in fig. 2, the throttle hole is a threaded hole, and the throttle pipe 7 is screwed in the threaded hole, and the upper end of the sleeved throttle pipe 7 is flush with the bottom surface of the throttle groove 6, and the lower end is flush with the lower surface of the suction block.

The structural design of orifice hole cooperation throttle pipe can be through changing the throttle pipe of different wall thicknesses, and then reach the size of the actual gas outlet of adjustment orifice hole.

As shown in fig. 1-2, two sides of the suction block are connected with side vent blocks 3 through bolts, side vent grooves 11 are formed in the side vent blocks 3, the side vent grooves 11 are communicated with the middle parts of the throttle grooves 6 on the corresponding sides through first vent holes 10, and the air inlet device is communicated with the side vent grooves 11.

Through setting up the side aeration piece 3, the high-pressure gas of air inlet unit can let in side air channel 11 earlier, then enters into the throttle groove through first blow vent 10 again, so can make absorb the piece not with air inlet unit lug connection, the convenient dress of dismantling changes.

As shown in fig. 1-3, the rear side of the suction block is connected with a rear vent block 12 through bolts, a rear vent groove 13 is arranged in the rear vent block 12, the rear vent groove 13 is communicated with the two side vent grooves 11 through a second vent hole 14, an air inlet 15 communicated with the rear vent groove 13 is arranged in the center of the rear vent block 12, and the air inlet 15 is communicated with an air inlet device.

Due to the design of the rear ventilation block 12, high-pressure gas of the air inlet device enters the rear ventilation groove 13 through the air inlet 15 and then is equally distributed into the two side ventilation grooves 11, so that air inlet of the two side ventilation grooves 11 can be realized through one air inlet device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principle and embodiments of the present invention have been described herein by way of specific examples, which are provided only to help understand the method and the core idea of the present invention, and the above is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can also be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. The non-contact multi-point air floatation grabbing device comprises a suction block, wherein a suction hole (4) is formed in the center of the suction block, the upper end of the suction hole (4) is communicated with a vacuum generator, and the non-contact multi-point air floatation grabbing device is characterized in that a straight through groove (5) which is symmetrical about the center and a throttling groove (6) which is symmetrical about the center are formed in the suction block, the throttling groove (6) is located on the outer side of the straight through groove (5), a throttling hole is formed in the bottom surface of the throttling groove (6), a straight through hole (8) is formed in the bottom surface of the straight through groove (5), the throttling hole and the straight through hole (8) correspond to each other in number and position one to one, the throttling groove (6) is connected with an air inlet device, a butt joint (9) communicated with the straight through groove (5) is formed in the suction block, and the butt.

2. The non-contact multi-point air-floatation gripping device as claimed in claim 1, wherein the suction block is formed by locking a top cover (1) and a bottom block (2) through bolts, a through hole (8) and a throttle hole are formed in the bottom block (2), a butt joint port is formed in the top cover (1), and the suction hole (4) penetrates through the top cover (1) and the bottom block (2).

3. The non-contact multi-point air-floating gripping device as claimed in claim 1, wherein the throttle hole is a threaded hole, and the throttle pipe (7) is sleeved with the thread, and the upper end of the sleeved throttle pipe (7) is flush with the bottom surface of the throttle groove (6) and the lower end is flush with the lower surface of the suction block.

4. The non-contact multi-point air-floating gripping device as claimed in claim 1, wherein the two sides of the suction block are connected with side vent blocks (3) through bolts, side vent grooves (11) are formed in the side vent blocks (3), the side vent grooves (11) are communicated with the middle parts of the throttle grooves (6) on the corresponding sides through first vent holes (10), and the air inlet device is communicated with the side vent grooves (11).

5. The non-contact multi-point air-floating gripping device as claimed in claim 4, wherein the rear side of the suction block is connected with a rear vent block (12) through bolts, a rear vent groove (13) is arranged in the rear vent block (12), the rear vent groove (13) is communicated with the two side vent grooves (11) through a second vent hole (14), an air inlet (15) communicated with the rear vent groove (13) is arranged at the center of the rear vent block (12), and the air inlet (15) is communicated with an air inlet device.