Vacuum suction device

Abstract

The utility model provides a vacuum suction device which comprises a first suction tool assembly and a second suction tool assembly, the suction directions of the first suction tool assembly and the second suction tool assembly are perpendicular to each other, a main frame assembly comprises a first supporting plate and a second supporting plate which are fixed in the right-angle direction, and a first stroke air cylinder and a first sliding block are fixed to the first supporting plate. A first stroke air cylinder and a first sliding block are fixed on the first supporting plate, the first sliding block is in sliding connection with a first sliding rod, the first sliding rod is driven by the first stroke air cylinder to slide, a second stroke air cylinder and a second sliding block are fixed on the second supporting plate, the second sliding block is in sliding connection with a second sliding rod, and the second sliding rod is driven by the second stroke air cylinder to slide; the first suction tool assembly is fixed to the first sliding rod, the second suction tool assembly is fixed to the second sliding rod, and the sliding direction of the first sliding rod is perpendicular to the sliding direction of the second sliding rod. The vacuum suction device can be suitable for different control systems according to different object carrying scenes, and is high in applicability, simple in structure, high in working stability and low in failure rate.

Description

Technical Field

[0001] The utility model relates to the technical field of suction devices, in particular to a vacuum suction device. Background Art

[0002] A suction device is a tool that uses vacuum suction to pick up and transport objects. Objects with a low center of gravity are prone to shaking during handling, causing the vacuum gripper to separate from the object and ultimately failing to grasp the object. Existing Chinese patent CN211366243U discloses a carton palletizing end effector and robotic arm. The actuator includes a main vacuum gripper assembly and a secondary vacuum gripper assembly. When the main vacuum gripper assembly sucks the carton from top to bottom, the secondary vacuum gripper assembly simultaneously sucks and secures the carton's sidewalls from the side. This allows for further suction and securement of cartons of different sizes and weights, preventing them from shaking during handling.

[0003] However, the auxiliary vacuum gripper of the actuator is driven by a multi-link mechanism and performs telescopic movement in the vertical direction. Since the multi-link mechanism changes the relative position of the auxiliary vacuum gripper during the telescopic movement in the vertical direction, the auxiliary vacuum gripper assembly cannot move vertically after adsorbing the object. Therefore, the working order of the two vacuum gripper assemblies of the actuator is limited, and the applicable control systems and handling scenarios are relatively limited. Utility Model Content

[0004] The purpose of the present invention is to provide a vacuum suction device to solve the problem that the control system and handling scenarios applicable to the suction device proposed in the above background technology are relatively single.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a vacuum suction device, including a first suction device assembly and a second suction device assembly with adsorption directions perpendicular to each other, the main frame assembly including a first support plate and a second support plate fixed along a right angle direction, the first support plate is fixed with a first stroke cylinder and a first slider, the first slider is slidably connected to the first slide rod, the first slide rod is driven to slide by the first stroke cylinder, the second support plate is fixed with a second stroke cylinder and a second slider, the second slider is slidably connected to the second slide rod, the second slide rod is driven to slide by the second stroke cylinder; the first suction device assembly is fixed on the first slide rod, the second suction device assembly is fixed on the second slide rod, and the sliding directions of the first slide rod and the second slide rod are perpendicular.

[0006] As a preferred solution, the length of the first support plate is greater than that of the second support plate, the number of first sliders in the first support plate is two, and the two first sliders are respectively fixed to the ends of the first support plate and are arranged on both sides of the second support plate.

[0007] As a preferred solution, the width of the second support plate is greater than that of the first support plate, there are two second sliders in the second support plate, and the two second sliders are fixed at intervals on the side of the second support plate opposite to the first support plate.

[0008] As a preferred solution, a first fixing plate is installed on a side of the first supporting plate opposite to the second supporting plate, and the first fixing plate is fixed to the piston rod of the first stroke cylinder.

[0009] As a preferred solution, a second fixing plate is installed on a side of the second supporting plate opposite to the first supporting plate, and the second fixing plate is fixed to the end cover of the second stroke cylinder.

[0010] As a preferred solution, both ends of the first slider and the second slider are penetrated by a sliding groove, and one end of the first slide rod and the second slide rod are each provided with a sliding bar extending toward the other end, at least part of the shape of the sliding bar is adapted to the sliding groove and the two are slidably connected.

[0011] As a preferred solution, the first suction device assembly includes a first mounting strip vertically fixed to the two first sliding rods, and also includes a first suction device fixed on one side of the first mounting strip.

[0012] As a preferred solution, the first gripper assembly further comprises a mounting head fixed on the other side of the first mounting strip, and the mounting head is detachably mounted and fixed to an external manipulator.

[0013] As a preferred solution, the second suction cup assembly includes a second mounting strip vertically fixed on the second slide rod, and also includes a second suction cup fixed on one side of the second mounting strip. The second mounting strip is provided with a third fixing plate arranged opposite to the second suction cup, and the third fixing plate is fixed to the piston rod of the second stroke cylinder. The second suction cup is staggered with the second slide rod.

[0014] As a preferred solution, a reinforcing plate is connected between the first supporting plate and the second supporting plate, and the reinforcing plate is vertically fixed to the first supporting plate and the second supporting plate respectively.

[0015] Therefore, based on the technical means of the present invention, the effects that can be obtained by the present invention are briefly described as follows: the main frame assembly of the vacuum suction device provided by the present invention is provided with a first support plate and a second support plate fixed in a right-angle direction, by fixing the first stroke cylinder and the first slider on the first support plate, and fixing the second stroke cylinder and the second slider on the second support plate, the first stroke cylinder can control the first slide bar to slide relative to the first slider, and the second stroke cylinder can control the second slide bar to slide relative to the second slider, and the first suction device assembly is fixed on the first slide bar, and the second suction device assembly is fixed on the second slide bar, and then by starting the first stroke cylinder or the second stroke cylinder, the first suction device assembly and the second suction device assembly can be controlled to move relative to each other in the horizontal or vertical direction. In summary, the vacuum suction device provided by the utility model uses a stroke cylinder to drive the sliding of the slide rod to control the movement of two vacuum suction assemblies. The position of the vacuum suction assemblies on the slide rod is fixed, that is, the vacuum suction assemblies can still move horizontally or vertically even after adsorbing the object. Therefore, there is no working order for the two suction assemblies of the vacuum suction device. Users can adapt different control systems to the vacuum suction device according to different object handling scenarios. It has high applicability and also has the advantages of simple and compact structure, strong working stability, and low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a suction device according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the disassembled structure of the suction device.

[0018] Figure 3 for Figure 2 Schematic diagram of part of the structure of the middle main frame assembly.

[0019] Figure 4 for Figure 1 Schematic diagram of the structure when the first stroke cylinder is started.

[0020] Figure 5 for Figure 1 Schematic diagram of the structure when the second stroke cylinder is started.

[0021] In the figure: 100-main frame assembly; 110-first support plate; 111-first fixed plate; 120-second support plate; 121-second fixed plate; 130-first stroke cylinder; 131-first piston rod; 141-first slider; 142-first slide bar; 150-second stroke cylinder; 151-second piston rod; 161-second slider; 162-second slide bar; 171-slide groove; 172-slide bar; 180-reinforcement plate; 200-first suction fixture assembly; 210-first mounting strip; 220-first suction fixture; 230-mounting head; 300-second suction fixture assembly; 310-second mounting strip; 311-third fixed plate; 320-second suction fixture; 400-solenoid valve assembly. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature designated "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] Please refer to Figures 1 to 5 This embodiment provides a vacuum suction device, including a main frame assembly 100 and a first suction assembly 200 and a second suction assembly 300 respectively mounted on the main frame assembly 100. The main frame assembly 100 is used to support and fix the first suction assembly 200 and the second suction assembly 300, and is also used to control the translational movement of the first suction assembly 200 and the second suction assembly 300. The suction directions of the first suction assembly 200 and the second suction assembly 300 are perpendicular to each other, so that the vacuum suction device can simultaneously absorb the top and side ends of the object, which can increase the clamping stability of the vacuum suction device and reduce the probability of the object falling.

[0029] The main frame assembly 100 includes a first support plate 110 and a second support plate 120 fixed at right angles. In this embodiment, the length of the first support plate 110 is greater than the length of the second support plate 120, and the width of the second support plate 120 is greater than the width of the first support plate 110. This provides a compact structure and facilitates the design and installation of the two suction fixture assemblies. In other embodiments of the present invention, the length-to-width ratio of the first support plate 110 and the second support plate 120 can be adjusted accordingly based on the user's actual needs, for example, they can be set to the same length or thickness.

[0030] A first fixing plate 111 is mounted on the side of the first support plate 110 opposite the second support plate 120. The first fixing plate 111 is secured to the first stroke cylinder 130. Specifically, in this embodiment, the first fixing plate 111 is secured to the first piston rod 131 of the first stroke cylinder 130. Two first sliders 141 are mounted on the first support plate 110, one at each end and one on either side of the second support plate 120. The first sliders 141 are slidably connected to a first slide rod 142, which is driven to slide by the first stroke cylinder 130. To ensure stable installation and proper operation of the first stroke cylinder 130, the cylinder body of the first stroke cylinder 130 can be secured to the first slide rod 142. In other embodiments of the present invention, the first fixing plate 111 can also securely mount other cylinder structures, such as the end cap of the first stroke cylinder 130. In this case, the first piston rod 131 is secured to the first slide rod 142.

[0031] A second fixing plate 121 is mounted on the side of the second support plate 120 opposite the first support plate 110. The second fixing plate 121 is secured to the second stroke cylinder 150. Specifically, in this embodiment, the second fixing plate 121 is secured to the end cap of the second stroke cylinder 150, and the second piston rod 152 of the second stroke cylinder 150 is secured to the second suction fixture assembly 300. Two second sliders 161 are provided in the second support plate 120, each of which is fixed to the side of the second support plate 120 opposite the first support plate 110 at intervals. The second sliders 161 are slidably connected to the second slide rod 162, which is driven to slide by the second stroke cylinder 150. In other embodiments of the present invention, the second piston rod 151 can also be directly secured to the second slide rod 162, or the cylinder structure of the second stroke cylinder 150, such as the end cap, can also be secured to the second slide rod 162 or the second suction fixture assembly 300. In this case, the second piston rod 151 is secured to the second fixing plate 121.

[0032] It is understood that the first slide bar 142 is fixed with the first suction assembly 200, and the second slide bar 162 is fixed with the second suction assembly 300, and the sliding directions of the first slide bar 142 and the second slide bar 162 are perpendicular. Specifically, the first slide bar 142 is used to control the relative movement of the first suction assembly 200 and the second suction assembly 300 in the horizontal direction, and the second slide bar 162 is used to control the relative movement of the first suction assembly 200 and the second suction assembly 300 in the vertical direction. Both ends of the first slider 141 and the second slider 161 are provided with a slide groove 171 extending from one end of the first slider 142 and the second slider 162 toward the other end. At least a portion of the shape of the slide bar 172 is adapted to fit the slide groove 171, and the two are slidably connected. It should be noted that in order to prevent the slide bar 172 from detaching from the slide groove 171, the length of the slide bar 172 is set to be greater than the telescopic length of the first piston rod 131 and the second piston rod 151.

[0033] In this embodiment, a reinforcing plate 180 is connected between the first support plate 110 and the second support plate 120. The reinforcing plate 180 is vertically fixed to the first support plate 110 and the second support plate 120, respectively, to enhance the tight connection between the first support plate 110 and the second support plate 120. In other embodiments of the present invention, the reinforcing plate 180 may not be provided between the first support plate 110 and the second support plate 120.

[0034] The first gripper assembly 200 includes a first mounting strip 210 vertically secured to the two first slide bars 142, a first gripper 220 secured to one side of the first mounting strip 210, and a mounting head 230 secured to the opposite side of the first mounting strip 210. It is understood that external structures, such as the solenoid valve assembly 400, can also be mounted on the first mounting strip 210, further enhancing the compact structure and facilitating the design and installation of other working components. The mounting head 230 can be removably secured to an external manipulator, enabling the vacuum suction device to be controlled by the external manipulator for overall movement, thereby completing the grasping and transfer of objects.

[0035] The second gripper assembly 300 includes a second mounting strip 310 vertically secured to the two second slide bars 162, and a second gripper 320 secured to one side of the second mounting strip 310. A third fixing plate 311, located opposite the second gripper 320, is mounted on the second mounting strip 310 and secured to the second piston rod 151. The second gripper 320 is offset from the second slide bars 162 to prevent damage to the second gripper 320 at the connection point on the second slide bars 162, which could affect the proper operation of the second slide bars 162.

[0036] It is understood that in this embodiment, both the first suction device 220 and the second suction device 320 utilize combined large-area suction cups. Large-area vacuum cups can quickly establish a vacuum and pick up objects, thereby improving the vacuum device's gripping efficiency. In other embodiments of the present invention, the first suction device 220 and / or the second suction device 320 can be modified to employ other types of vacuum devices, such as sponge suction devices, based on the user's actual gripping needs.

[0037] One operational process of the vacuum suction device provided in this embodiment is as follows: the user controls the solenoid valve assembly 400 to open, causing the vacuum generating device to generate a vacuum within the first suction cup 220, thereby picking up an object. The user controls the second suction cup 320 to move horizontally and vertically by activating the first stroke cylinder 130 and the second stroke cylinder 150 to adjust the relative position between the second suction cup 320 and the first suction cup 220. The solenoid valve assembly 400 is then controlled to open, creating a vacuum within the second suction cup 320, thereby gripping the sides of the object and clamping it between the first and second suction cups 220 and 320. An external manipulator controls the movement of the vacuum suction device to move the object. Once the object reaches a certain distance above a designated location, the solenoid valve assembly 400 is controlled to break the vacuum within the second suction cup 320. The external manipulator then lowers the vacuum suction device, controlling the solenoid valve assembly 400 to break the vacuum within the first suction cup 220, thereby releasing the object to the designated location.

[0038] Compared to existing multi-link mechanisms, the connection structure between the second slide bar 162 and the second gripper assembly 300 offers advantages such as simplicity, compactness, stability, and strength, as well as a low failure rate. Furthermore, vertical movement of the second slide bar 162 does not alter the relative position of the second gripper 320 on the second mounting strip 310. This means that the second gripper 320 can still be controlled to move vertically even after gripping an object. Therefore, it is understood that the vacuum suction device provided in this embodiment is also suitable for use in scenarios where the second gripper assembly 300 needs to be moved after gripping an object, making it applicable to a wider range of control systems, handling scenarios, and types of objects.

[0039] For clarity, certain features of the present invention described in the context of separate embodiments may be combined in a single embodiment. Furthermore, various features of the present invention described in the context of a single embodiment may also be used individually or in any suitable subcombination.

Claims

1. A vacuum suction device, comprising a first suction assembly and a second suction assembly with suction directions perpendicular to each other, characterized in that: It also includes a main frame assembly, which includes a first support plate and a second support plate fixed along a right angle direction, a first stroke cylinder and a first slider fixed on the first support plate, the first slider is slidably connected to the first slide rod, and the first slide rod is driven to slide by the first stroke cylinder, a second stroke cylinder and a second slider are fixed on the second support plate, the second slider is slidably connected to the second slide rod, and the second slide rod is driven to slide by the second stroke cylinder; the first suction device assembly is fixed on the first slide rod, and the second suction device assembly is fixed on the second slide rod, and the sliding direction of the first slide rod is perpendicular to that of the second slide rod.

2. The vacuum suction device according to claim 1, wherein: The length of the first support plate is greater than that of the second support plate. There are two first sliders in the first support plate. The two first sliders are respectively fixed to the ends of the first support plate and are arranged on both sides of the second support plate.

3. The vacuum suction device according to claim 2, wherein: The width of the second support plate is greater than that of the first support plate. There are two second sliders in the second support plate. The two second sliders are fixed at intervals on a side of the second support plate opposite to the first support plate.

4. The vacuum suction device according to claim 1, wherein: A first fixing plate is installed on a side of the first supporting plate opposite to the second supporting plate, and the first fixing plate is fixed to the piston rod of the first stroke cylinder.

5. The vacuum suction device according to claim 4, characterized in that: A second fixing plate is installed on a side of the second supporting plate opposite to the first supporting plate, and the second fixing plate is fixed to the end cover of the second stroke cylinder.

6. The vacuum suction device according to claim 1, wherein: Both ends of the first slider and the second slider are provided with sliding grooves, and one end of the first slide rod and the second slide rod are provided with sliding bars extending toward the other end. At least part of the shape of the sliding bar is adapted to the sliding groove and the two are slidably connected.

7. The vacuum suction device according to claim 2, wherein: The first suction fixture assembly includes a first mounting strip vertically fixed to the two first sliding bars, and also includes a first suction fixture fixed on one side of the first mounting strip.

8. The vacuum suction device according to claim 7, wherein: The first gripper assembly further comprises a mounting head fixed on the other side of the first mounting strip, and the mounting head is detachably mounted and fixed to an external manipulator.

9. The vacuum suction device according to claim 1, wherein: The second suction cup assembly includes a second mounting strip vertically fixed on the second slide bar, and also includes a second suction cup fixed on one side of the second mounting strip. The second mounting strip is provided with a third fixing plate arranged opposite to the second suction cup. The third fixing plate is fixed to the piston rod of the second stroke cylinder, and the second suction cup is staggered with the second slide bar.

10. The vacuum suction device according to claim 3, wherein: A reinforcing plate is connected between the first supporting plate and the second supporting plate, and the reinforcing plate is vertically fixed to the first supporting plate and the second supporting plate respectively.

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