A material loading fixture and material handling device

Abstract

This application discloses a material loading fixture and a material handling device. The material loading fixture includes a carrier tray and an air blowing mechanism. The carrier tray has a bearing surface for placing samples and is provided with multiple air blowing holes penetrating along its thickness direction. The air blowing mechanism is connected to the air blowing holes, and the air blowing holes form air blowing openings on the bearing surface. The air blowing openings on the multiple air blowing holes are arranged in an array on the bearing surface, and the diameter of the air blowing holes located on the periphery is smaller than that of the air blowing holes located in the middle. By applying this application, by adjusting the diameter sizes of the periphery air blowing holes and the middle air blowing holes, the diameter of the air blowing holes located on the periphery is smaller than that of the air blowing holes located in the middle. This increases the air blowing pressure exerted on the sample by the middle air blowing holes during the adsorption operation, thereby enabling the sample as a whole to separate synchronously from the bearing surface and avoiding large deformations of the sample periphery and middle.

Description

Technical Field

[0001] This application relates to the field of sheet metal production technology, specifically to a material loading tool and a material handling device. Background Technology

[0002] In the entire chip industry process (design, manufacturing, packaging, and testing), sheet metal (typically referring to metal sheets or foils with thicknesses ranging from micrometers to millimeters) is a key auxiliary material and structural component, indispensable in electrical connections, heat dissipation, protection, and process support. During automated production, sheet metal needs to be picked up and placed relative to a carrier plate using vacuum chucks to complete workstation transfers. However, when the sheet metal is placed on the carrier plate, it may adhere too tightly to the carrier plate due to molecular attraction, surface tension (such as from residual liquid), or the adsorption of minute impurities, making it impossible to be properly picked up by the vacuum chuck. This can even lead to severe deformation or damage of the sheet metal during the adsorption process.

[0003] To address the aforementioned technical problems, existing technologies incorporate pores on the carrier disk and an air-blowing mechanism. When using a vacuum suction cup to adsorb thin metal sheets, air is blown into the pores via the air-blowing mechanism to separate the metal sheets from the carrier disk, facilitating adsorption. However, in practical applications, this approach may still result in sample (thin metal sheet) deformation and damage. Utility Model Content

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a material loading fixture and a material handling device.

[0005] To achieve the above objectives, this application adopts the following technical solution: a material-carrying fixture, including a carrier plate and an air blowing mechanism, wherein the carrier plate has a bearing surface for placing samples, the carrier plate is provided with a plurality of air blowing holes penetrating along its thickness direction, and the air blowing mechanism is connected to the air blowing holes, the air blowing holes form air blowing ports on the bearing surface, the air blowing ports on the plurality of air blowing holes are arranged in an array on the bearing surface, and the diameter of the air blowing holes located on the periphery is smaller than the diameter of the air blowing holes located in the middle.

[0006] The application of this application has the following beneficial effects: The inventors have discovered that the reason for sample (thin metal sheet) displacement or damage during the application of existing solutions is that the gripping center of the adsorption tool (such as a vacuum suction cup) is usually aligned with the center of the carrier plate, meaning that the central region of the sample is the main area where the adsorption force applied by the adsorption tool is exerted. Therefore, in this case, before the adsorption tool adsorbs the sample, there is a brief operation where the adsorption tool moves down to contact and apply pressure to the central region of the sample. However, in existing solutions, the pore diameters are the same, meaning that the amount of air ejected from the outer pores and the middle pores (applying pressure to the sample) is the same. This easily leads to a situation where "the outer part of the sample has separated from the carrier plate, while the middle part of the sample has not been successfully opened by the air blown due to the pressure applied by the adsorption tool (and remains attached)." This results in the outer part of the sample undergoing greater deformation or even damage relative to the center of the sample, and the larger and thinner the sample, the more prone it is to the above problem. In this application, by adjusting the aperture size of the outer air blowing holes and the middle air blowing holes, the aperture of the outer air blowing holes is made smaller than that of the middle air blowing holes. This increases the air blowing pressure exerted on the sample by the middle air blowing holes during the adsorption operation, thereby enabling the sample as a whole to separate synchronously from the bearing surface and avoiding large deformation of the sample periphery and middle.

[0007] Optionally, the air inlets on the plurality of air holes are arranged in a rectangular array, a circular array, a regular polygonal array, or an alternating array on the bearing surface.

[0008] Optionally, the diameter of the air inlet gradually increases from the outside to the inside.

[0009] Optionally, the diameter of the air inlet located on the periphery is a selected value between 0.3 mm and 0.5 mm, the diameter of the air inlet located in the middle is a selected value between 1 mm and 2 mm, and the diameter of the air inlet located between the periphery and the middle is a selected value between 0.6 mm and 0.9 mm.

[0010] Optionally, the axis of the air hole located in the middle is perpendicular to the bearing surface, and the axis of the air holes located outside the middle is inclined relative to the bearing surface and has a set tilt angle.

[0011] Optionally, the set tilt angle is a selected value between 12° and 18°.

[0012] Optionally, an air-blowing groove is formed on the side of the carrier plate opposite to the bearing surface, and the air-blowing mechanism is sealed and connected to the air-blowing groove.

[0013] Optionally, the air blowing mechanism further includes multiple solenoid valves, each of which is configured to correspond one-to-one with a multiple air blowing hole. The solenoid valves are used to control the opening and closing of the corresponding air blowing hole.

[0014] Optionally, the carrier tray is provided with a plurality of placement slots for placing samples, and the bottom wall of each placement slot is formed with the bearing surface.

[0015] Furthermore, this application also provides a material handling device, including a vacuum suction cup, which further includes a material loading fixture as described in any of the above technical solutions. The vacuum suction cup is used to pick up and place samples relative to a carrier plate in the material loading fixture. The reasoning process for the beneficial effects of the material handling device provided in this application and the aforementioned material loading fixture is similar, and will not be repeated here.

[0016] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0017] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0018] Figure 1 This is a schematic diagram of the structure of a carrier tray in a material-carrying tooling provided in an embodiment of this application;

[0019] Figure 2 This is a structural schematic diagram of the carrier tray in the material loading tool from another perspective.

[0020] Figure 3 This is a schematic diagram of a material-carrying fixture;

[0021] Figure 4 This is a partial sectional view of the carrier disk;

[0022] Figure 5 A top view of the carrier in other alternative embodiments;

[0023] Figure 6 This is a schematic diagram illustrating the application of the material handling device.

[0024] Among them, 1. carrier plate; 10. air blowing hole; 100. air blowing port; 11. placement groove; 110. bearing surface; 12. air blowing groove; 2. air blowing mechanism; 3. sample; 4. vacuum suction cup. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0026] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0027] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] The inventors discovered that the reason for sample (thin metal sheet) displacement or damage during the application of existing methods is that the gripping center of the adsorption tool (such as a vacuum chuck) is usually aligned with the center of the carrier disk. This means the central region of the sample is the primary area where the adsorption force applied by the tool is exerted. Therefore, before the tool adsorbs the sample, there is a brief period where it moves down to contact and apply pressure to the central region of the sample. However, in existing methods, the pore diameters are the same, meaning the amount of air ejected from the outer and inner pores (applying pressure to the sample) is the same. This easily leads to a situation where the outer portion of the sample has separated from the carrier disk, while the central portion, due to the pressure from the adsorption tool, has not been successfully opened by the airflow (remaining attached). This results in significant deformation or even damage to the outer portion of the sample relative to the center, and this problem is more likely to occur with larger and thinner samples.

[0030] To address the aforementioned problems, this embodiment provides a material-carrying fixture, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the material-carrying fixture includes a carrier tray 1 and an air-blowing mechanism 2. The carrier tray 1 has a bearing surface 110 for placing the sample 3, and the carrier tray 1 is provided with multiple air-blowing holes 10 extending along its thickness direction. The air-blowing mechanism 2 communicates with the air-blowing holes 10. Each air-blowing hole 10 has an air-blowing opening 100 formed on the bearing surface 110. The air-blowing openings 100 on the multiple air-blowing holes 10 are arranged in an array on the bearing surface 110, and the diameter of the outermost air-blowing holes 10 is smaller than that of the central air-blowing holes 10.

[0031] The material carrier provided in this embodiment adjusts the aperture size of the outer air blowing hole 10 and the middle air blowing hole 10 so that the aperture of the outer air blowing hole 10 is smaller than that of the middle air blowing hole 10. This increases the air blowing pressure of the middle air blowing hole 10 on the sample 3 during the adsorption operation, so that the sample 3 can be separated from the bearing surface 110 synchronously and avoid large deformation of the outer and middle parts of the sample 3.

[0032] In this embodiment, the carrier plate 1 is provided with six placement slots 11 for placing samples 3. Each placement slot 11 has a bearing surface 110 formed on its bottom wall, and each placement slot 11 also has air holes 10 formed on its bottom wall. Specifically, in this embodiment, the air holes 10 on the bottom wall of each placement slot 11 are arranged in a rectangular array on the corresponding bearing surface 110. The "air holes 10 located on the periphery" mentioned in this embodiment refers to the air holes 10 located in the outermost ring of the arrayed air holes 10. Correspondingly, the "aperture of the air holes 10 located in the middle" refers to the air holes 10 located in the innermost ring of the arrayed air holes 10. For example... Figure 1 As shown in the figure, this embodiment exemplarily demonstrates a scheme in which 15 air holes 10 are provided on the bottom wall of each placement slot 11. The number of air holes 10 in the outermost ring is 12, that is, there are 12 "air holes 10 in the outer perimeter". The number of air holes 10 in the innermost ring is 3, that is, there are 3 "air holes 10 in the middle".

[0033] In other alternative implementations, such as Figure 5 As shown, the air inlets 100 on the multiple air holes 10 can also be arranged in a circular array, a regular polygon array, or an alternating array on the bearing surface 110. Figure 5The bottom wall of the placement slot 11 on the right side shows, from top to bottom, the air holes 10 arranged in a circular array, a regular polygonal array, and a staggered array. The case of the regular polygonal array of air holes 10 also shows a configuration where air holes 10 are positioned between the outermost air holes 10 and the central air holes 10. It is easy to understand that the arrangement and number of air holes 10 can be adjusted according to the size and weight of the sample 3.

[0034] In terms of aperture design, the aperture of the air inlet 10 in this embodiment gradually increases from the outside to the inside. Specifically, the aperture of the outermost air inlet 10 is a selected value between 0.4 mm and the aperture of the middle air inlet 10 is a selected value between 1.2 mm. In other optional embodiments, the aperture of the outermost air inlet 10 is a selected value between 0.3 mm and 0.5 mm, and the aperture of the middle air inlet 10 is a selected value between 1 mm and 2 mm. If an air inlet 10 is also provided between the outermost and middle parts, the aperture of the air inlet 10 between the outermost and middle parts is a selected value between 0.6 mm and 0.9 mm.

[0035] Furthermore, such as Figure 4 As shown, in this embodiment, the axis of the air blowing hole 10 located in the middle is perpendicular to the bearing surface 110, while the axis of the air blowing holes 10 located outside the middle is inclined relative to the bearing surface 110 and has a set tilt angle. This design has several advantages, which are explained in detail below: The airflow from the air blowing hole 10, which is inclined relative to the bearing surface 110, is slightly tilted upward relative to the bearing surface 110. Firstly, it can reduce the direct impact of the airflow on the surface of the sample 3, thereby reducing the probability of damage to the surface of the sample 3 caused by a large airflow impact. It can also reduce the probability of the sample 3 "jumping" due to a sudden large airflow impact, making the process of the sample 3 separating from the bearing surface 110 by the airflow impact more "gentle" and stable. In addition, the airflow inclined relative to the bearing surface 110 can form a stable air film between the sample 3 and the bearing surface 110, preventing the sample 3 from re-contacting the carrier plate 1, and is more suitable for scenarios where the sample 3 is grasped at high speed.

[0036] Specifically, in this embodiment, the set tilt angle α is 15°. In other optional embodiments, the set tilt angle can be a selected value between 12° and 18°. It should be noted that... Figure 4 To make it easier to show α, its angle is drawn to be relatively large. In reality, the tilt angle is set to a selected value between 12° and 18°.

[0037] like Figure 2 and Figure 3As shown, in this embodiment, an air-blowing groove 12 is formed on the side of the carrier plate 1 facing away from the bearing surface 110, and the air-blowing mechanism 2 is sealed and connected to the air-blowing groove 12. The air-blowing mechanism 2 can be a nozzle-type air-blowing device or a pipeline-type air-blowing device. The specific air-blowing mechanism 2 can be directly purchased from the market, and its structure and working principle are existing technologies, which will not be described in detail here.

[0038] For the purpose of precisely controlling the airflow rate of the air blowing holes 10, the air blowing mechanism 2 in this embodiment also includes multiple solenoid valves, each corresponding to one of the multiple air blowing holes 10. The solenoid valves are used to control the opening and closing of the corresponding air blowing holes 10. Thus, the on / off state and the degree of opening and closing of each air blowing hole 10 can be precisely controlled by the solenoid valves.

[0039] The material loading fixture provided in this embodiment can be applied to a material handling device, specifically as follows: Figure 6 As shown, the material handling device includes a vacuum suction cup 4 and a material loading fixture. The vacuum suction cup 4 is used to pick up and place the sample 3 relative to the carrier plate 1 in the material loading fixture.

[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A material-carrying fixture, comprising a carrier tray and an air-blowing mechanism, wherein the carrier tray has a bearing surface for placing a sample, the carrier tray is provided with a plurality of air-blowing holes extending along its thickness direction, and the air-blowing mechanism communicates with the air-blowing holes, characterized in that, The air holes are formed with air inlets on the bearing surface. The air inlets on the plurality of air holes are arranged in an array on the bearing surface, and the diameter of the air holes located on the periphery is smaller than the diameter of the air holes located in the middle.

2. The material-carrying fixture as described in claim 1, characterized in that, The air inlets on the plurality of air holes are arranged in a rectangular array, a circular array, a regular polygonal array, or an alternating array on the bearing surface.

3. The material-carrying tooling as described in claim 1, characterized in that, Along the direction from the outside to the inside, the diameter of the air blowing hole gradually increases.

4. The material-carrying fixture as described in claim 3, characterized in that, The diameter of the air inlet located on the periphery is a selected value between 0.3 mm and 0.5 mm, the diameter of the air inlet located in the middle is a selected value between 1 mm and 2 mm, and the diameter of the air inlet located between the periphery and the middle is a selected value between 0.6 mm and 0.9 mm.

5. The material-carrying tooling as described in any one of claims 1 to 4, characterized in that, The axis of the air inlet located in the middle is perpendicular to the bearing surface, while the axis of the air inlets located outside the middle is inclined relative to the bearing surface and has a set angle.

6. The material-carrying tooling as described in claim 5, characterized in that, The set tilt angle is a selected value between 12° and 18°.

7. The material-carrying tooling as described in any one of claims 1 to 4, characterized in that, An air-blowing groove is formed on the side of the carrier plate opposite to the bearing surface, and the air-blowing mechanism is sealed and connected to the air-blowing groove.

8. The material-carrying tooling as described in claim 7, characterized in that, The air blowing mechanism also includes multiple solenoid valves, each of which is configured to correspond one-to-one with a multiple air blowing hole. The solenoid valves are used to control the opening and closing of the corresponding air blowing hole.

9. The material-carrying tooling as described in any one of claims 1 to 4, characterized in that, The carrier disk is provided with multiple placement slots for placing samples, and the bottom wall of each placement slot is formed with the bearing surface.

10. A material handling device, comprising a vacuum suction cup, characterized in that, The material handling device further includes a material loading fixture as described in any one of claims 1 to 9, wherein the vacuum suction cup is used to pick up or place samples relative to the carrier plate in the material loading fixture.

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