Annular groove vacuum suction cup
By designing annular vacuum suction cups, using stainless steel and isoprene rubber materials combined with airflow coiling effect, the problem of traditional vacuum suction cups being deformed and fitted unreliable during adsorption is solved, and efficient adsorption effect and structural simplification are achieved.
Patent Information
- Application Number
- CN202011064876.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-10-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2040-10-01
AI Technical Summary
Traditional vacuum suction cups have problems such as large deformation and leading to positioning errors when adsorbing objects, or the problem of unreliable adsorption, especially flexible and rigid suction cups have their own shortcomings.
A ring-shaped groove vacuum suction cup is designed, using stainless steel material and isoprene rubber material. The compressed airflow passes through the Rafale nozzle to generate an airflow coiling effect. Combined with an integrated structure, it ensures that the adsorption surface is fully fitted and the deformation is controlled.
It achieves high fit and small deformation when adsorbing objects, ensuring excellent adsorption effect, while simplifying the structure and saving space.
Smart Images
Figure CN112157672B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of vacuum technology, and in particular relates to a vacuum suction cup. Background Art
[0002] With the increasing development of industry today, vacuum technology has been widely used in all walks of life, and has made important achievements in vacuum metallurgy, vacuum coating, freeze drying, robotics and other industries. Traditional vacuum suction cups can be divided into flexible vacuum suction cups and rigid vacuum suction cups according to their properties; although the flexible vacuum suction cup can fully fit the adsorbed object when adsorbing the object, the vacuum suction cup has a large deformation variable, and the positioning error is large when the adsorbed object is sent to the destination coordinate. Rigid vacuum suction cups are the opposite. Although the vacuum suction cup has a small deformation variable, when adsorbing rigid objects, there is a gap between the bonding surfaces, and the bonding will be unreliable. Summary of the invention
[0003] The object of the present invention is to provide an annular groove vacuum suction cup which can fully fit the adsorbed object and has a small deformation amount.
[0004] The annular groove vacuum suction cup provided by the present invention mainly utilizes the principle that when the compressed air flows through the Rafale nozzle, an airflow suction effect is generated, thereby generating an adsorption force. The main body is made of stainless steel with high rigidity, and the adsorption part is made of isoprene rubber with good elasticity, so as to overcome the deficiencies described in the above background technology. The traditional vacuum suction cup is connected to the vacuum generator separately, occupies a large space, and has a complex structure. The present invention adopts an integrated structure to solve the above problems. Specifically, the annular groove vacuum suction cup provided by the present invention is as follows: Figure 1-Figure 4As shown; comprising: a rubber adsorption component 1, a vacuum passage component 2, and a vacuum generator component 3, and the three are fixed into an integrated structure by bolts (not shown in the figure) through screw holes 14 penetrating the rubber adsorption component 1, the vacuum passage component 2, and the vacuum generator component 3; wherein the interior of the vacuum passage component 2 is a hollow cavity 11, and the vacuum generator component 3 has an exhaust hole 4, an air intake hole 6, an air inlet hole 7, and a Rafale nozzle 13, the exhaust hole 4, the air intake hole 7, and the Rafale nozzle 13 are in the same diameter direction of the vacuum generator component 3, the air intake hole 6 passes through the center of the vacuum generator component 3, and is perpendicular to the contact surface between the vacuum generator component 3 and the vacuum passage component 2, and is connected to the Rafale nozzle 13; the vacuum passage component The surface of the component 2 in contact with the rubber adsorption component 1 is provided with a row of ventilation holes 8 along the diameter direction; the direction of the ventilation holes 8 is perpendicular to the surface in contact with the rubber adsorption component 1, and is connected with the cavity 11 inside the vacuum passage component 2; both ends of the cavity 11 are provided with pipe threads 5, and a sealed cavity can be formed after adding a plug (not shown in the figure); an annular groove 12 is provided on the upper surface of the rubber adsorption component 1, and an adsorption hole 9 corresponding to the position of the ventilation hole 8 on the vacuum passage component 2 is provided at the bottom of the annular groove 12; the bottom of the vacuum passage component 2 is provided with a through hole 10, and the through hole 10 connects the cavity 11 with the suction hole 6 on the vacuum generator component 3; the main function of the suction hole 6 is to connect the cavity 11 with the exhaust hole 4 of the vacuum generator together with the through hole 10.
[0005] In the vacuum generator component 3, the air inlet 7 and the exhaust hole 4 have another pipe thread 5, which are respectively connected to the air pipe (not shown in the figure). When the compressed air flow enters from the air inlet 7 of the vacuum generator, passes through the Rafale nozzle 13 and is discharged from the exhaust hole 4, due to the air flow entrainment effect, the air inside the cavity 11 will be discharged from the exhaust hole 4 through the through hole 10 and the air suction hole 6, thereby generating an adsorption effect on the adsorption surface of the rubber adsorption component 1.
[0006] In the present invention, the rubber adsorption component 1 is made of isoprene rubber, and the vacuum passage component 2 and the vacuum generator component 3 are both made of stainless steel.
[0007] In the present invention, the diameters of the rubber adsorption component 1, the vacuum passage component 2 and the vacuum generator component 3 can be adjusted according to the size of the object to be adsorbed, but the diameters of the three components should be equal. The thickness of the rubber adsorption component 1 is preferably 8-10 mm, and the thickness of the vacuum passage component 2 and the vacuum generator component 3 should be specifically determined according to their diameters to keep their diameter-thickness ratio within a reasonable range and prevent deformation. When the diameter is 200 mm, the thickness is preferably 20-25 mm.
[0008] In the present invention, the width of the annular groove 12 is preferably 2mm, the interval is 2mm, and the depth is 2mm; the diameters of the adsorption hole 9 and the vent hole 8 are both 2mm; the diameter of the cavity 11 in the vacuum passage component 2 is determined by the thickness of the vacuum passage component, and the thickness of the upper and lower surfaces is ensured to be equal. When the thickness is 20-25mm, its size is preferably 13-15mm; the diameter of the through hole 10 and the suction hole 6 is 10mm; the diameter of the air inlet hole 7 and the exhaust hole 4 is determined by the thickness of the vacuum generator component 3. When the thickness is 20-25mm, its diameter is preferably 11-12mm; the size of the Rafale nozzle is determined according to the size of the air inlet pipe 7 and the exhaust pipe 4, and the specification of the pipe thread 5 is specifically determined according to the diameter of the cavity 11, the diameter of the air inlet hole 7, and the diameter of the exhaust hole 4.
[0009] The annular groove vacuum suction cup designed by the present invention has a stainless steel material with high rigidity and is not easy to deform; the isoprene rubber material has high elasticity, high tensile strength and strong tear resistance. While controlling the deformation of the adsorbed object, it can also ensure that the adsorbed object and the adsorption surface of the vacuum suction cup are fully fitted, and the adsorption effect is excellent. The vacuum generator component, vacuum passage component and rubber adsorption component are an integrated structure, which is easy to install and saves space. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a three-dimensional schematic diagram of the appearance of the annular groove vacuum suction cup.
[0011] Figure 2 A top view of the annular groove vacuum suction cup.
[0012] Figure 3 for Figure 2 AA section explosion diagram.
[0013] Figure 4 Schematic diagram of gas flow.
[0014] The numbers in the figure are: 1 is the rubber adsorption component; 2 is the vacuum passage component; 3 is the vacuum generator component; 4 is the vacuum generator exhaust hole; 5 is the pipe thread; 6 is the vacuum generator suction hole; 7 is the vacuum generator component air inlet hole; 8 is the vent hole; 9 is the adsorption hole; 10 is the through hole; 11 is the cavity in the vacuum passage component; 12 is the annular groove; 13 is the Rafale nozzle; 14 is the screw hole. DETAILED DESCRIPTION
[0015] The present invention is further described in detail below through specific examples in conjunction with the accompanying drawings.
[0016] A vacuum suction cup with an annular groove, such as Figure 1-4As shown, it includes a rubber adsorption component 1, a vacuum passage component 2, and a vacuum generator component 3, and the three are fixed into an integrated structure by bolts (not shown in the figure) through screw holes 14 that penetrate the rubber adsorption component 1, the vacuum passage component 2, and the vacuum generator component 3. The diameter of the three is 200mm. The vacuum passage component 2 has a series of vent holes 8 along the diameter direction on the surface in contact with the rubber adsorption component 1. The size of the vent holes is 2mm. The direction of the vent holes 8 is perpendicular to the surface in contact with the rubber adsorption component 1, and is connected to the cavity 11 inside the vacuum passage component 2. The cavity diameter is 13mm; there are pipe threads 5 at both ends of the cavity 11, and the pipe thread specification is R1 / 4. After adding a plug (not shown in the figure), a sealed cavity can be formed. An annular groove 12 is opened on the upper surface of the rubber adsorption component 1. Each annular groove is 2mm apart, the groove width is 2mm, and the groove depth is 2mm. At the bottom of the annular groove 12, an adsorption hole 9 corresponding to the position of the vent hole 8 on the vacuum passage component 2 is opened, and the diameter of the adsorption hole is 2mm. There is a through hole 10 at the bottom of the vacuum passage component 2, and the diameter of the through hole is 10 mm. The through hole 10 connects the cavity 11 with the suction hole 6 on the vacuum generator component 3, and the diameter of the suction hole 6 is 10 mm; the main function of the suction hole 6 is to connect the cavity 11 with the vacuum generator exhaust hole 4 together with the through hole 10.
[0017] The vacuum generator component 3 is provided with an air inlet 7 and an exhaust hole 4, the diameter of the air inlet 7 and the exhaust hole 4 is 11mm, and the ports of the air inlet 7 and the exhaust hole 4 are provided with pipe threads 5, the pipe thread specification is R1 / 4, and they are respectively connected to the air pipe (not shown in the figure). When the compressed air flow enters from the vacuum generator air inlet 7 and passes through the Rafale nozzle 13, and is discharged from the exhaust hole 4, due to the air flow entrainment effect, the air inside the cavity 11 will be discharged through the through hole 10 and the air suction hole 6, thereby generating an adsorption effect on the adsorption surface of the rubber adsorption component 1. The inlet diameter of the Rafale nozzle 13 is 1.5mm, the outlet diameter of the nozzle is 3mm, and the length of the nozzle is 7.5mm. The inlet diameter of the expansion tube is 5mm, the outlet diameter is 3.5mm, and the length is 10mm.
[0018] The vacuum suction cup in the implementation case has a good adsorption effect on rigid parts with a diameter of less than 20kg and weak rigid and variable parts. The pressure value at the adsorption hole can be 3×10 5 Pa. For a pure copper thin part with a diameter of 200mm and a thickness of 2.65mm, the maximum deformation after adsorption is less than 1.5um.
Claims
1. A vacuum suction cup with an annular groove, characterized in that: include: A rubber adsorption component (1), a vacuum passage component (2), and a vacuum generator component (3), wherein the three components are fixed to form an integrated structure by bolts through screw holes (14) penetrating the rubber adsorption component (1), the vacuum passage component (2), and the vacuum generator component (3); wherein the interior of the vacuum passage component (2) is a cavity (11), and the vacuum generator component (3) is provided with an exhaust hole (4), an air intake hole (6), an air inlet hole (7), and a Rafale nozzle (13); the exhaust hole (4), the air intake hole (7), and the Rafale nozzle (13) are in the same diameter direction of the vacuum generator component (3); the air intake hole (6) passes through the center of the vacuum generator component (3), is perpendicular to the contact surface between the vacuum generator component (3) and the vacuum passage component (2), and is connected to the Rafale nozzle (13); the vacuum passage component (2 ) A row of ventilation holes (8) along the diameter direction is formed on the surface in contact with the rubber adsorption component (1); the direction of the ventilation holes (8) is perpendicular to the surface in contact with the rubber adsorption component (1) and is connected to the cavity (11) inside the vacuum passage component (2); pipe threads (5) are provided at both ends of the cavity (11), and a sealed cavity can be formed after a plug is added; an annular groove (12) is formed on the upper surface of the rubber adsorption component (1), and an adsorption hole (9) corresponding to the position of the ventilation hole (8) on the vacuum passage component (2) is formed at the bottom of the annular groove (12); a through hole (10) is formed at the bottom of the vacuum passage component (2), and the through hole (10) connects the cavity (11) with the suction hole (6) on the vacuum generator component (3); the suction hole (6) and the through hole (10) together connect the cavity (11) and the exhaust hole (4) of the vacuum generator; In the vacuum generator component (3), the air inlet (7) and the air outlet (4) are provided with pipe threads (5) which are respectively connected to air pipes; when compressed air enters the vacuum generator from the air inlet (7), passes through the Rafale nozzle (13) and is discharged from the air outlet (4), due to the air flow entrainment effect, the air inside the cavity (11) is discharged from the air outlet (4) through the through hole (10) and the air intake hole (6), thereby generating an adsorption effect on the adsorption surface of the rubber adsorption component (1); The rubber adsorption component (1) is made of isoprene rubber, and the vacuum passage component (2) and the vacuum generator component (3) are both made of stainless steel; The diameters of the rubber adsorption component (1), the vacuum passage component (2) and the vacuum generator component (3) are equal; the design dimensions are adjusted according to the size of the object to be adsorbed; The rubber adsorption component (1) has a thickness of 8-10 mm; the vacuum passage component (2) and the vacuum generator component (3) have a thickness of 20-25 mm when the diameter is 200 mm.
2. The annular groove vacuum chuck according to claim 1, characterized in that: The annular groove (12) has a width of 2 mm and a depth of 2 mm, and the interval between adjacent grooves is 2 mm; the diameters of the adsorption holes (9) and the ventilation holes (8) are both 2 mm.
3. The annular groove vacuum chuck according to claim 1, characterized in that: The diameter of the cavity (11) in the vacuum passage component (2) is determined by the thickness of the vacuum passage component. When the thickness of the vacuum passage component is 20-25 mm, the diameter of the cavity (11) is 13-15 mm.
4. The annular groove vacuum chuck according to claim 1, characterized in that: The diameters of the through hole (10) and the air suction hole (6) are 10 mm; the diameters of the air inlet hole (7) and the air exhaust hole (4) are determined by the thickness of the vacuum generator component (3); when the thickness of the vacuum generator component (3) is 20-25 mm, the diameters of the air inlet hole (7) and the air exhaust hole (4) are 11-12 mm.