A multi-zone vacuum chuck device

Abstract

The utility model relates to vacuum chuck technical field, and disclose a kind of multi-partition vacuum chuck device, including frame body, the bottom of frame body is fixedly connected with multiple suction pad base plate, two vacuum chuck bodies are all worn on multiple suction pad base plate, corresponding four vacuum chuck bodies on two suction pad base plate are a vacuum adsorption partition, four four-bit air discharges are fixedly connected on the frame body, and four vacuum chuck bodies on the four-bit air discharge of corresponding vacuum adsorption partition are connected with gas pipe one by one respectively, electromagnetic valve for four-bit air discharge cooperation is fixedly connected with four four-bit air discharge one side position on the frame body, the utility model can be effectively sealed when individual partition is due to workpiece surface uneven or there is curvature, can automatically close the vacuum supply of this partition, isolate it from system, ensure that workpiece is safely grabbed.

Description

Technical Field

[0001] This utility model relates to the field of vacuum suction cup technology, and more specifically to a multi-zone vacuum suction cup device. Background Technology

[0002] Vacuum suction cups, as one of the core end effectors in automated production, are widely used in processes such as handling, loading, unloading, and positioning of sheet metal parts. With their advantages of simple structure, no pollution, and no damage to the workpiece surface, they have become an indispensable piece of equipment in modern intelligent manufacturing.

[0003] A search revealed Chinese patent CN216328391U, which discloses a robotic suction cup holder. This device allows for adjustment of the suction cup position or number of suction cups according to design needs, eliminating the need to replace the suction cup holder, thus saving design costs and improving work efficiency. The vacuum circuit of the entire suction system is interconnected, and its reliability depends on the sealing effect of each suction cup. Sheet metal parts to be processed often have complex curved shapes or slight warping deformations during stamping and transportation. When dealing with such irregularly shaped and uneven workpieces, a large amount of external air is drawn in from the leakage point, causing a sharp drop in the vacuum level of the entire system. This results in even suction cups with good contact failing due to insufficient suction force, ultimately leading to the failure of the handling operation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-zone vacuum suction cup device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a multi-zone vacuum suction cup device, including a frame, with multiple suction cup base plates fixedly connected to the bottom of the frame, and two vacuum suction cup bodies passing through each of the multiple suction cup base plates. The four vacuum suction cup bodies on the two corresponding suction cup base plates constitute a vacuum adsorption zone. Four four-position air outlets are fixedly connected to the frame, and each four-position air outlet is connected to the four vacuum suction cup bodies on the corresponding vacuum adsorption zone through an air pipe. A solenoid valve for use with the four-position air outlets is fixedly connected to the frame and located on one side of the four four-position air outlets.

[0006] As a further embodiment of this utility model, air pipe 2 is clamped at the connection port of the two solenoid valves on both sides, and a three-way valve 1 is clamped between the free ends of the two air pipes 2. Air pipe 3 is clamped at the connection port of the two solenoid valves in the middle position, and a three-way valve 2 is clamped between the free ends of the two air pipes 3.

[0007] As a further embodiment of this utility model, multiple sliding rods are passed through and slidably connected to both sides of the frame, and a slide frame is fixedly connected to the ends of the multiple sliding rods on the same side. Multiple positioning clamps are fixedly connected to the slide frame, and a driving component for moving the slide frame is provided on both sides of the frame.

[0008] As a further embodiment of this utility model, the driving component includes L-shaped mounting seats fixedly connected to both sides of the frame, and a cylinder for moving the carriage is fixedly connected to each of the two L-shaped mounting seats.

[0009] As a further embodiment of this invention, a vacuum sensor for detecting the vacuum level of the corresponding vacuum adsorption zone is provided in the vacuum channel of the four-position gas outlet.

[0010] As a further embodiment of this invention, the vacuum suction cup body is a corrugated tube type vacuum suction cup.

[0011] As a further improvement of this utility model, the frame is provided with flexible anti-collision skirts around its perimeter.

[0012] As a further embodiment of this invention, both the three-way valve one and the three-way valve two are connected to an external vacuum generator.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model divides the adsorption surface into multiple vacuum adsorption zones independently controlled by solenoid valves and equips them with vacuum sensors for real-time monitoring. When an individual zone cannot be effectively sealed due to uneven workpiece surface or curvature, the vacuum supply to that zone can be automatically shut off, isolating it from the system and ensuring that the workpiece is safely gripped.

[0014] 2. This utility model integrates a lateral positioning clamping plate mechanism driven by a cylinder, forming a "main suction and auxiliary clamping" mode, which provides constraint for the workpiece and effectively prevents the workpiece from sliding or deviating when it moves at high speed, flips, or is disturbed by external forces.

[0015] 3. This utility model integrates the air supply of multiple vacuum suction cup bodies in the same zone by using a four-position air outlet, and combines the air source through three-way valve one and three-way valve two, so that the vacuum pipeline layout is clear and compact, reducing complex pipeline connections and improving the reliability and aesthetics of the system. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a bottom view of the frame of this utility model.

[0018] Figure 3 This utility model Figure 1A magnified view of a portion of the image.

[0019] Figure 4 This is a schematic diagram of the carriage of this utility model.

[0020] The attached diagram is labeled as follows: 1. Frame; 2. Suction cup base plate; 3. Vacuum suction cup body; 4. Four-position air outlet; 5. Solenoid valve; 6. Air pipe one; 7. Air pipe two; 8. Three-way valve one; 9. Air pipe three; 10. Three-way valve two; 11. Slide rod; 12. Slide frame; 13. Positioning clamp; 14. L-shaped mounting base; 15. Cylinder. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4 This utility model provides a multi-zone vacuum suction cup device, including a frame 1. Multiple suction cup base plates 2 are fixedly connected to the bottom of the frame 1 by bolts. Two vacuum suction cup bodies 3 are inserted through each of the multiple suction cup base plates 2. The vacuum suction cup bodies 3 are corrugated tube type vacuum suction cups. The four vacuum suction cup bodies 3 on the two corresponding suction cup base plates 2 form a vacuum adsorption zone. Four four-position air outlets 4 are fixedly connected to the frame 1 by bolts. Each four-position air outlet 4 is connected to the four vacuum suction cup bodies 3 on the corresponding vacuum adsorption zone by an air pipe 6. A solenoid valve 5 (the solenoid valve 5 model is: 4V210-08 pneumatic solenoid valve) is fixedly connected to the frame 1 on one side of the four four-position air outlets 4 by bolts.

[0023] By dividing the adsorption surface into multiple vacuum adsorption zones independently controlled by solenoid valve 5 and equipping them with vacuum sensors for real-time monitoring, when an individual zone cannot be effectively sealed due to uneven workpiece surface or curvature, the vacuum supply to that zone can be automatically shut off, isolating it from the system and ensuring that the workpiece is safely gripped.

[0024] In this utility model, air pipe 2 7 is clamped at the connection port of the two solenoid valves 5 located on both sides, and a three-way valve 1 8 is clamped between the free ends of the two air pipes 2 7. Air pipe 3 9 is clamped at the connection port of the two solenoid valves 5 located in the middle, and a three-way valve 2 10 is clamped between the free ends of the two air pipes 3 9. Both the three-way valve 1 8 and the three-way valve 2 10 are connected to an external vacuum generator.

[0025] By using a four-position air outlet 4 to integrate the air supply of multiple vacuum suction cup bodies 3 in the same zone, and by using three-way valve 1 8 and three-way valve 2 10 to collect the air source, the vacuum pipeline layout is clear and compact, reducing complex pipeline connections and improving the reliability and aesthetics of the system.

[0026] During the preparation phase, the device is connected to the robotic arm and other driving equipment through the interface on the upper part of the frame 1. The external vacuum generator is connected to the three-way valve 8 and the three-way valve 10 through pipelines to provide a vacuum source for the system. The compressed air source is connected to the cylinder 15. The robotic arm drives the entire device to move above the sheet metal part to be gripped. The flexible anti-collision skirts around the device can make contact first in case of accidental collision, playing a buffering and protective role to prevent damage to the vacuum suction cup body 3 and the frame 1.

[0027] During use, the robotic arm drive device descends, causing all the bellows-type vacuum suction cup bodies 3 to contact the workpiece surface. All solenoid valves 5 open, and vacuum is transmitted from the external vacuum generator through three-way valve 1 / three-way valve 2 / air pipe 2 / air pipe 3 / air pipe 9, solenoid valve 5, four-position air outlet 4, and air pipe 1 / 6 to each vacuum suction cup body 3, starting to adsorb the workpiece. At this time, the vacuum degree sensor installed in the vacuum channel of each four-position air outlet 4 monitors the vacuum pressure value of the corresponding vacuum adsorption zone in real time.

[0028] In this utility model, multiple sliding rods 11 are threaded through and slidably connected on both sides of the frame 1. The ends of the multiple sliding rods 11 on the same side are fixedly connected to the slide frame 12 by bolts. Multiple positioning clamps 13 are fixedly connected to the slide frame 12 by bolts. Both sides of the frame 1 are provided with driving components to move the slide frame 12. The periphery of the frame 1 is provided with flexible anti-collision skirts.

[0029] Furthermore, the drive component includes L-shaped mounting seats 14 that are bolted to both sides of the frame 1, and cylinders 15 that move the carriage 12 are bolted to both L-shaped mounting seats 14.

[0030] It integrates a lateral positioning clamping plate 13 mechanism driven by cylinder 15, forming a "main suction and auxiliary clamping" mode, which provides constraint for the workpiece and effectively prevents the workpiece from sliding or deviating when it moves at high speed, flips, or is disturbed by external forces.

[0031] It should be noted that: Cylinder 15 is a power actuator that converts the pressure energy of compressed air into mechanical energy. By controlling the gas in and out, it drives the piston to perform linear reciprocating motion. It can be used in conjunction with a magnetic switch, proximity switch or photoelectric switch to achieve precise control of the extension and retraction displacement of the piston rod of cylinder 15. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0032] When cylinder 15 is activated, it pulls slide 12 along slide rod 11 toward the workpiece, so that positioning clamp 13 gently contacts the edge of the workpiece. This mechanical clamping action complements the vacuum adsorption force, together constraining the workpiece.

[0033] In this invention, a vacuum sensor (model: HM27CA vacuum pressure sensor) is installed in the vacuum channel of the four-position air outlet 4 to detect the vacuum level of the corresponding vacuum adsorption zone.

[0034] The robotic arm transports the workpiece that has been stably gripped to the target position. After reaching the designated position, the cylinder 15 extends to release the workpiece from the positioning clamp 13. Then, all solenoid valves 5 are closed to cut off the vacuum. The solenoid valves 5 briefly switch direction to blow a small amount of positive air pressure into the vacuum suction cup body 3 to help the workpiece detach smoothly and quickly.

[0035] The use of this utility model involves the following steps: S1: In the preparation stage, the device is connected to the mechanical arm and other driving equipment through the interface on the upper part of the frame 1. The external vacuum generator is connected to the three-way valve 8 and the three-way valve 10 through the pipeline to provide a vacuum source for the system. The compressed air source is connected to the cylinder 15. The mechanical arm drives the entire device to move above the sheet metal part to be gripped. The flexible anti-collision skirt around the device can make contact first in case of accidental collision, playing a buffer protection role and preventing damage to the vacuum suction cup body 3 and the frame 1. S2: The robotic arm drive device descends, causing all the bellows-type vacuum suction cup bodies 3 to contact the workpiece surface. All solenoid valves 5 are opened, and vacuum is transmitted from the external vacuum generator through three-way valve 18 / three-way valve 210, air pipe 27 / air pipe 39, solenoid valve 5, four-position air outlet 4 and air pipe 16 to each vacuum suction cup body 3, and the workpiece is adsorbed. At this time, the vacuum degree sensor installed in the vacuum channel of each four-position air outlet 4 monitors the vacuum pressure value of the corresponding vacuum adsorption zone in real time. S3: At the same time, the cylinder 15 is activated, pulling the slide 12 along the slide rod 11 towards the workpiece, so that the positioning clamp 13 gently contacts the edge of the workpiece. This mechanical clamping action complements the vacuum adsorption force, jointly constraining the workpiece. S4: The robotic arm transports the workpiece that has been stably gripped to the target position. After reaching the designated position, the cylinder 15 extends to release the workpiece from the positioning clamp 13. Then, all solenoid valves 5 are closed to cut off the vacuum. The solenoid valves 5 briefly switch direction to blow a small amount of positive air pressure into the vacuum suction cup body 3 to help the workpiece detach smoothly and quickly.

[0036] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A multi-zone vacuum suction cup device, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly connected to multiple suction cup base plates (2), and two vacuum suction cup bodies (3) are inserted on each of the multiple suction cup base plates (2). The four vacuum suction cup bodies (3) on the two suction cup base plates (2) are a vacuum adsorption zone. The frame (1) is fixedly connected to four four-position air outlets (4). Each four-position air outlet (4) is connected to the four vacuum suction cup bodies (3) on the corresponding vacuum adsorption zone through an air pipe (6). The frame (1) is fixedly connected to a solenoid valve (5) that works with the four-position air outlets (4).

2. The multi-zone vacuum suction cup device according to claim 1, characterized in that: The connection ports of the two solenoid valves (5) located on both sides are fitted with air pipes 2 (7), and a three-way valve 1 (8) is fitted between the free ends of the two air pipes 2 (7). The connection ports of the two solenoid valves (5) located in the middle are fitted with air pipes 3 (9), and a three-way valve 2 (10) is fitted between the free ends of the two air pipes 3 (9).

3. The multi-zone vacuum suction cup device according to claim 1, characterized in that: Multiple slide rods (11) are slidably connected to both sides of the frame (1), and slide frames (12) are fixedly connected to the ends of the multiple slide rods (11) on the same side. Multiple positioning clamps (13) are fixedly connected to the slide frames (12), and driving components for moving the slide frames (12) are provided on both sides of the frame (1).

4. The multi-zone vacuum suction cup device according to claim 3, characterized in that: The drive component includes L-shaped mounting bases (14) fixedly connected to both sides of the frame (1), and cylinders (15) for moving the slide (12) are fixedly connected to both L-shaped mounting bases (14).

5. The multi-zone vacuum suction cup device according to claim 1, characterized in that: The vacuum channel of the four-position gas outlet (4) is equipped with a vacuum sensor for detecting the vacuum level of the corresponding vacuum adsorption zone.

6. The multi-zone vacuum suction cup device according to claim 1, characterized in that: The vacuum suction cup body (3) is a corrugated tube type vacuum suction cup.

7. A multi-zone vacuum suction cup device according to claim 3, characterized in that: The frame (1) is provided with flexible anti-collision skirts around its perimeter.

8. A multi-zone vacuum suction cup device according to claim 2, characterized in that: Both the three-way valve one (8) and the three-way valve two (10) are connected to an external vacuum generator.

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