Vacuum adsorption assembly

Abstract

The utility model relates to a vacuum adsorption assembly which comprises an installation part and a moving part, one end of the installation part is fixedly installed with a support, one or more sets of stroke assemblies moving according to the stroke are installed in the installation part, and the free ends, extending out of the installation part, of the stroke assemblies are connected with the moving part. The stroke end of the stroke assembly moves in the mounting part, the stroke end is provided with a limiting structure, the limiting structure limits the stroke of the stroke assembly in the mounting part, the adsorption end of the moving part is provided with a vacuum suction tool, and the vacuum suction tool sucks a product. According to the vacuum adsorption assembly, the flatness of an adsorbed product is controlled through the stroke assembly, the distance can be adjusted during adsorption, and when a plurality of vacuum adsorption assemblies are assembled together, it can be guaranteed that the flatness and precision of the product can meet the requirements of follow-up industrial operation such as continuous machining or attaching.

Description

Technical Field

[0001] The utility model relates to a vacuum adsorption assembly, belonging to the field of vacuum adsorption. Background Art

[0002] Vacuum adsorption technology is a technology that uses the suction force generated under a vacuum state to fix an object on a surface. It is widely used in industrial production, medical equipment, aerospace and other fields.

[0003] Vacuum adsorption technology creates a low-pressure environment, so that an object under atmospheric pressure is subjected to a huge pressure difference, thereby generating an adsorption force. Its principle mainly includes two aspects: one is to pump out the gas in the container through a pump to reduce the pressure in the container to a vacuum state; the other is to use the low pressure difference under the vacuum state to generate an adsorption force to firmly fix the object on the surface.

[0004] With the increasing use of vacuum adsorption in industrial handling, the requirements for the realization of vacuum adsorption are becoming more and more strict. For example, when handling flat objects, such as on large and smooth planes such as liquid crystal displays and semiconductor silicon wafers, in addition to the requirements for the adsorption force, there are higher requirements for the flatness after adsorption, in order to facilitate subsequent processing operations to be directly carried out on the liquid crystal screen or silicon wafer. However, traditional vacuum adsorption devices are only devices such as suction cups or sponges. Due to the uneven compression of the overly long suction cups or the uneven compression changes of the sponges, it is impossible to ensure the same flatness among multiple vacuum adsorption devices after adsorption, causing inconvenience in subsequent processing or bonding and other processes. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to overcome the above problems, to provide an adjustable vacuum adsorption assembly capable of improving the adsorption flatness.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A vacuum adsorption assembly includes a mounting part and a moving part. One end of the mounting part is fixedly installed with a bracket. One or more stroke components that move according to a stroke are installed in the mounting part. The free end of the stroke component extending out of the mounting part is connected to the moving part. The stroke end of the stroke component moves inside the mounting part. A limiting structure is arranged at the stroke end, and the limiting structure limits the stroke of the stroke component in the mounting part. A vacuum suction device is arranged at the adsorption end of the moving part, and the vacuum suction device sucks the product.

[0008] Preferably, a first air passage is formed in the mounting part. The first air passage is communicated with the vacuum generator and the end of the stroke component. The vacuum generator pushes the stroke component to move inside the mounting part through the first air passage.

[0009] Preferably, a second air duct is provided in the moving part. The second air duct is communicated with the vacuum generator and the vacuum suction device. The vacuum generator controls the vacuum suction device to suck the product through the second air duct.

[0010] Preferably, the stroke assembly includes one or more guide rods. The end of the guide rod is communicated with the first air duct. The vacuum generator pushes the guide rod to move through the first air duct.

[0011] Preferably, the stroke assembly further includes a stroke limiting rod. A limiting ring is provided on the stroke limiting rod. A spring is further provided at the free end of the stroke limiting rod. The spring abuts between the mounting part and the moving part.

[0012] Preferably, the mounting part further includes an upper mounting part and a lower mounting part. Mounting holes for fixing to the bracket are provided on the upper mounting part. The stroke assembly is arranged in the lower mounting part.

[0013] Preferably, a transverse through hole is further provided on the upper mounting part. The transverse through hole is used for arranging a plurality of the vacuum adsorption assemblies side by side.

[0014] Preferably, the first air duct is arranged in the upper mounting part.

[0015] Preferably, a linear bearing is further provided between the guide rod and the inner wall of the mounting part. A sealing ring is provided at the end of the guide rod in contact with the first air duct.

[0016] Preferably, the second air duct is connected to the vacuum generator through a quick connector.

[0017] The beneficial effects of the present utility model are as follows: The present utility model controls the flatness of the adsorbed product through the stroke assembly, and can adjust the distance while adsorbing. When a plurality of the vacuum adsorption assemblies of this patent are assembled together, the flatness of the product can be ensured, and the precision can meet the requirements of subsequent industrial operations such as continuous processing or fitting. The steps of putting down the product and readjusting the flatness are simplified, and the production requirements of the automatic production line can be met. Description of the Drawings

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 is a cross-sectional view of an embodiment of the present utility model.

[0020] Markings in the figure: 1 - mounting part, 2 - lower mounting part, 3 - linear bearing, 4 - guide rod, 5 - quick-connect plug, 6 - moving part, 7 - vacuum suction tool, 8 - air hole screw, 9 - spring, 10 - stroke limiting rod, 11 - limiting ring, 12 - sealing ring, 13 - upper mounting part, 14 - first air passage, 15 - transverse through hole, 16 - mounting hole, 17 - second air passage. Detailed implementation mode

[0021] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. Embodiment

[0022] As Figure 1 shown, a vacuum adsorption assembly of the present utility model includes a mounting part 1 and a moving part 6. The mounting part 1 and the moving part 6 are preferably made of metal materials to ensure no deformation during long-term use, and some high-strength plastics can also be used. One end of the mounting part 1 is fixedly installed with a bracket. The bracket is generally a bracket on a multi-axis robotic arm. The present utility model is installed at the end of the multi-axis robotic arm for multi-directional adsorption of products. A group or multiple groups of stroke components that move according to a stroke are installed in the mounting part 1. The number of the stroke components is generally set according to the weight of the adsorbed product. More can be set for heavier products. The free end of the stroke component extending out of the mounting part 1 is connected to the moving part 6. The stroke end of the stroke component moves inside the mounting part 1, and a limiting structure is provided at the stroke end. The limiting structure limits the stroke of the stroke component inside the mounting part 1. A vacuum suction tool 7 is provided at the adsorption end of the moving part 6. The vacuum suction tool 7 sucks the product. Since the stroke component has a fixed stroke, after the vacuum suction tool 7 adsorbs the product, a fixed distance can be maintained or adjusted to keep the flatness of the product.

[0023] In a preferred implementation mode, a first air passage 14 is formed inside the mounting part 1. The first air passage 14 is communicated with the vacuum generator and the end of the stroke component. The vacuum generator pushes the stroke component to move inside the mounting part 1 through the first air passage 14. The first air passage 14 is a channel formed inside the mounting part 1 for the use of high-pressure gas or vacuum pumping of the vacuum generator. The high-pressure gas pushes the end of the stroke component to move it.

[0024] In a preferred implementation mode, a second air passage 17 is provided inside the moving part 6. The second air passage 17 is communicated with the vacuum generator and the vacuum suction tool 7. The vacuum generator controls the vacuum suction tool 7 to suck the product through the second air passage 17. The vacuum suction tool 7 is preferably a smaller suction cup, and the suction cup is connected to the moving part 6 by an air hole screw 8.

[0025] In a preferred embodiment, the stroke assembly includes one or more guide rods 4, and the number of the guide rods 4 is set according to the weight of the product. Preferably, as shown in the appendix Figure 1 As shown, setting two guide rods 4 preferably ensures balance, better stabilizes the moving part 6, and further ensures flatness during the adsorption process. The end of the guide rod 4 communicates with the first air duct 14, and the vacuum generator pushes the guide rod 4 to move through the first air duct 14.

[0026] In a preferred embodiment, the stroke assembly further includes a stroke limit rod 10. A limit ring 11 is provided on the stroke limit rod 10, and a spring 9 is further provided on the free end of the stroke limit rod 10. The spring 9 on the stroke limit rod 10 abuts between the mounting part 1 and the moving part 6. The spring 9 on the stroke limit rod 10 can help buffer the product during the adsorption process and provide a resilience during the movement process to assist the smoothness of the movement.

[0027] In a preferred embodiment, the mounting part 1 further includes an upper mounting part 13 and a lower mounting part 2. Mounting holes 16 for fixing to the bracket are provided on the upper mounting part 13, and the stroke assembly is arranged inside the lower mounting part 2.

[0028] In a preferred embodiment, a transverse through hole 15 is further provided on the upper mounting part 13, and a plurality of the vacuum adsorption assemblies can be installed side by side through fixing bolts in the transverse through hole 15.

[0029] In a preferred embodiment, the first air duct 14 is arranged inside the upper mounting part 13.

[0030] In a preferred embodiment, a linear bearing 3 is further arranged between the guide rod 4 and the inner wall of the mounting part 1. The linear bearing 3 can ensure the smoother movement of the guide rod 4, reduce wear during long-term operation, and avoid the inclination of the guide rod 4 due to wear. A sealing ring 12 is arranged at the end of the guide rod 4 in contact with the first air duct 14. The sealing ring 12 can increase the airtightness between the guide rod 4 and the inner wall of the mounting part 1, reduce the leakage of high-pressure gas from the gap around the guide rod 4, and increase the driving force.

[0031] In a preferred embodiment, the second air duct 17 is connected to the vacuum generator through a quick-connect plug 5, and the connection is more convenient and fast.

[0032] Taking the above ideal embodiment according to the present invention as an inspiration, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vacuum adsorption assembly, characterized in that, It includes an installation part and a movement part. One end of the installation part is fixedly installed with a bracket. One or more stroke components that move according to a stroke are installed in the installation part. The free end of the stroke component that extends out of the installation part is connected to the movement part. The stroke end of the stroke component moves inside the installation part. A limit structure is provided at the stroke end, and the limit structure limits the stroke of the stroke component in the installation part. A vacuum chuck is provided at the adsorption end of the movement part, and the vacuum chuck sucks the product.

2. The vacuum adsorption assembly according to claim 1, wherein A first air passage is formed in the installation part. The first air passage is communicated with a vacuum generator and the end of the stroke component. The vacuum generator pushes the stroke component to move in the installation part through the first air passage.

3. The vacuum adsorption assembly according to claim 1, wherein A second air passage is provided in the movement part. The second air passage is communicated with the vacuum generator and the vacuum chuck. The vacuum generator controls the vacuum chuck to suck the product through the second air passage.

4. The vacuum adsorption assembly according to claim 2, wherein The stroke component includes one or more guide rods. The end of the guide rod is communicated with the first air passage. The vacuum generator pushes the guide rod to move through the first air passage.

5. The vacuum adsorption assembly according to claim 4, wherein, The stroke component further includes a stroke limit rod. A limit ring is provided on the stroke limit rod. A spring is further provided at the free end of the stroke limit rod, and the spring abuts between the installation part and the movement part.

6. The vacuum adsorption assembly according to claim 2, wherein, The installation part further includes an upper installation part and a lower installation part. Installation holes for fixing with the bracket are provided on the upper installation part. The stroke component is arranged in the lower installation part.

7. The vacuum adsorption assembly according to claim 6, characterized in that, A transverse through hole is further provided on the upper installation part. The transverse through hole is used for installing a plurality of the vacuum adsorption components side by side together.

8. The vacuum adsorption assembly according to claim 7, wherein The first air passage is arranged in the upper installation part.

9. The vacuum adsorption assembly according to claim 4, characterized in that A linear bearing is further provided between the guide rod and the inner wall of the installation part. A sealing ring is provided at the end of the guide rod in contact with the first air passage.

10. The vacuum adsorption assembly according to claim 3, wherein, The second air passage is connected to the vacuum generator through a quick-connect plug.

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