Sealing ring feeding device

Abstract

The utility model provides a sealing ring feeding device. Relates to the field of sealing ring conveying, and aims to solve the problem that sealing rings are inconvenient to accurately feed when a vibration disc is used for feeding at present, the small-wire-diameter sealing rings are picked up through a suction nozzle and moved to a cache assembly, the sealing rings are expanded and expanded through the cache assembly, and the sealing rings are taken down from the sealing rings through a feeding clamp in an expansion mode and then moved to the position of a workpiece. The sealing ring is pushed by the pushing claw to fall off from the clamping claw, feeding of the sealing ring is achieved, the sealing ring is switched between the opening claw and the clamping claw, stable grabbing and feeding of the sealing ring are guaranteed, and the feeding precision and efficiency of the sealing ring are improved.

Description

Technical Field

[0001] The utility model relates to the field of sealing ring conveying, in particular to a sealing ring feeding device. Background Art

[0002] In the equipment production line, when installing sealing rings in large quantities, vibration plates are often used for feeding, and claws are used to grab the sealing rings, stretch them open, and then put them on the workpiece.

[0003] For some sealing rings with smaller wire diameters, due to their small size and thin wire diameter, they are prone to adhesion, overlapping or hanging during the feeding process of the vibration disk, making it difficult for the small wire diameter sealing ring to maintain a stable state of motion under the vibration of the vibration disk, making it difficult to achieve reliable automatic feeding. In addition, the posture of the vibration disk cannot meet the requirements of the claws when it is output, resulting in poor feeding accuracy and efficiency, affecting the production efficiency of the production line. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing ring feeding device in view of the defects of the prior art, which picks up a small-diameter sealing ring through a suction nozzle and moves it to a cache component, expands and stretches the sealing ring through the cache component, and after the feeding clamp removes the sealing ring from the sealing ring in an expanded manner, moves to the workpiece position, and pushes the sealing ring off the clamping jaw by a pushing claw to realize the feeding of the sealing ring. The sealing ring is switched between the stretching claw and the clamping jaw to ensure stable grasping and feeding of the sealing ring, thereby improving the feeding accuracy and efficiency of the sealing ring.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A sealing ring feeding device, comprising:

[0007] Four-axis suction nozzle, equipped with a four-axis robotic arm and a negative pressure suction nozzle, the four-axis robotic arm drives the negative pressure suction nozzle to adjust the working position;

[0008] The cache assembly includes an expansion mechanism, the expansion mechanism includes a pair of expansion claws with variable spacing, and the outer periphery of the expansion claws forms an expansion portion for contacting the inner ring of the sealing ring;

[0009] The feeding fixture includes a clamping mechanism and a pushing mechanism. The clamping mechanism includes a pair of clamping jaws with variable spacing. The outer periphery of the clamping jaws forms a clamping portion for contacting the inner ring of the sealing ring. The pushing mechanism includes a pair of pushing claws. The pushing claws are slidably installed on the feeding fixture through a pushing block. The ends of the pushing claws form a pushing portion for contacting the end face of the sealing ring.

[0010] Furthermore, it also includes a flexible vibration plate, which is connected to a straight vibration silo upstream, and a visual component is suspended above the flexible vibration plate, and the visual component is used to obtain an image of the sealing ring carried by the flexible vibration plate.

[0011] Furthermore, the moving track of the negative pressure suction nozzle of the four-axis suction nozzle connects the straight vibration silo and the buffer component, and a platform for carrying the sealing ring is formed on the flexible vibration plate.

[0012] Furthermore, the side surface of the expansion portion formed by the expansion claws is an arc surface, so that the sealing ring after expansion forms an oblong hole shape, and the maximum distance between the pair of expansion claws is greater than the width of the clamping claws.

[0013] Furthermore, the side surface of the clamping portion formed by the clamping jaw is an arc surface, so that the sealing ring after expansion forms an oblong hole shape, and the side of the push jaw facing the clamping jaw is an arc surface.

[0014] Furthermore, it also includes a combined tooling, on which a bearing portion for bearing the workpiece is provided.

[0015] Furthermore, each opening claw of the opening mechanism is slidably mounted on the opening slide seat through an opening block, and a gap for the clamping claw to probe into is formed between the same pair of opening claws. The opening claws are supported from the inner ring of the sealing ring and expand the sealing ring.

[0016] Furthermore, the cache assembly includes two groups of spreading mechanisms, and the two groups of spreading mechanisms are arranged at intervals.

[0017] Furthermore, the loading fixture also includes a displacement mechanism and a bracket, the displacement mechanism includes a connected horizontal moving part and a vertical moving part, the bracket is installed at the output end of the vertical moving part, and the clamping mechanism and the pushing mechanism are respectively installed on the bracket.

[0018] Furthermore, two groups of clamping mechanisms and two groups of pushing mechanisms are installed on the bracket, the two groups of clamping mechanisms are arranged at intervals, and the pushing mechanisms are distributed one-to-one with the clamping mechanisms.

[0019] Compared with the prior art, the utility model has the following advantages and positive effects:

[0020] (1) In order to solve the problem that it is inconvenient to accurately load the sealing ring when using a vibration plate to load the material, a small-diameter sealing ring is picked up by a suction nozzle and moved to a buffer component, and the sealing ring is expanded and stretched by the buffer component. After the loading fixture removes the sealing ring from the sealing ring in an expanded manner, it is moved to the workpiece position, and the sealing ring is pushed off the clamping jaw by the push claw to realize the loading of the sealing ring. The sealing ring is switched between the stretched claw and the clamping jaw to ensure the stable grasping and loading of the sealing ring, thereby improving the loading accuracy and efficiency of the sealing ring.

[0021] (2) A straight vibration silo and a flexible vibration plate are used to temporarily store and disperse the sealing rings. As the straight vibration silo shakes, some sealing rings can fall into the flexible vibration plate. The materials on the flexible vibration plate will be dispersed by the vibration of the flexible vibration plate, thereby maintaining a horizontal end surface, which is convenient for the four-axis suction nozzle to absorb and transfer, solving the problem that ordinary vibration plate sealing rings cannot be continuously loaded.

[0022] (3) A visual component is used to identify the scattered sealing rings on the flexible vibration plate to obtain the position of the sealing rings on the flexible vibration plate, so that the four-axis suction nozzle can absorb the sealing rings on the flexible vibration plate one by one, thereby improving the feeding accuracy and reducing the problem that the sealing rings cannot be effectively and continuously fed when the ordinary vibration plate vibrates.

[0023] (4) The opening claws of the cache component are arc-shaped, so that the contact position between the opening claws and the sealing ring can avoid the problem of cutting caused by sharp edges. A pair of opening claws can be moved to form a gap between them, so that the clamping claws can penetrate and support the sealing ring from another direction, thereby realizing the transfer of the sealing ring from the opening claws to the clamping claws. The opening claws cooperate with the push claws to realize the push-out installation, thereby improving the installation efficiency and accuracy of the sealing ring.

[0024] (5) Two sets of opening mechanisms are provided on the buffer assembly, which match the two sets of clamping mechanisms and two sets of pushing mechanisms on the loading fixture to realize the loading process of the double-station sealing ring and improve the loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 It is a schematic diagram of a sealing ring feeding device in an embodiment of the utility model.

[0027] Figure 2 It is a schematic diagram of a cache component in an embodiment of the utility model.

[0028] Figure 3 It is a schematic diagram of a loading fixture in an embodiment of the utility model.

[0029] In the figure, 1. flexible vibration plate, 2. visual component, 3. four-axis suction nozzle, 4. cache component, 5. loading fixture, 6. combined tooling, 7. opening claws, 8. opening block, 9. sealing ring, 10. opening slide, 11. push block, 12. push claws, 13. clamping claws, 14. clamping block, 15. workpiece. DETAILED DESCRIPTION

[0030] In a typical implementation of the present invention, Figure 1-Figure 3 As shown, a sealing ring feeding device is proposed.

[0031] Due to their small size and thin wire diameter, small-diameter sealing rings 9 are prone to adhesion, overlap or hanging during the feeding process of the vibration plate. This physical property makes it difficult for them to maintain a stable state of motion under the vibration of the vibration plate, making it difficult to achieve reliable automatic feeding. The working principle of the vibration plate is to arrange and transport materials along a certain trajectory through vibration. However, for materials such as small-diameter sealing rings 9, due to their own physical properties, it is difficult for the vibration plate to effectively arrange and transport them. Even if they can be arranged, problems such as misalignment and overlap are prone to occur, resulting in inaccurate and unstable feeding.

[0032] Based on this, see Figure 1 This embodiment provides a sealing ring feeding device, which as a whole temporarily stores the sealing ring 9 through a straight vibration bin and supplies it to the flexible vibration plate 1, and uses the flexible vibration plate 1 to spread the sealing ring 9 on it. After the visual component 2 recognizes the distribution position of the sealing ring 9 on the flexible vibration plate 1, the four-axis suction nozzle 3 can pick up the sealing ring 9 one by one according to the distribution position of the sealing ring 9 on the flexible vibration plate 1 and transport it to the cache component 4, and the feeding fixture 5 removes the sealing ring 9 from the cache component 4 and moves it to the position of the combined tooling 6 to realize the feeding of the sealing ring 9. At the same time, the feeding fixture 5 can cooperate with the combined tooling 6 to install the sealing ring 9 on the workpiece 15 on the combined tooling 6.

[0033] Specifically, in this embodiment, the main goal of the sealing ring feeding device is to solve the problems of adhesion, overlapping and hanging of small diameter sealing rings 9 when feeding them on the vibration plate, while ensuring that the posture of the sealing ring 9 when it is sleeved on the workpiece 15 meets the requirements, thereby improving the feeding accuracy and efficiency.

[0034] like Figure 1 As shown, the sealing ring feeding device mainly includes a straight vibration silo, a flexible vibration plate 1, a visual component 2, a four-axis suction nozzle 3, a cache component 4 and a feeding fixture 5.

[0035] The silo part adopts a combination design of a straight vibration silo and a flexible vibration plate 1. The straight vibration silo is responsible for the preliminary storage and dispersion of the sealing rings 9, and some of the sealing rings 9 fall into the flexible vibration plate 1 under the action of vibration. The vibration of the flexible vibration plate 1 makes the material on it disperse and keep the end surface horizontal, which is convenient for the four-axis suction nozzle 3 to suck.

[0036] A visual component 2 is also provided, which is suspended above the flexible vibration plate 1 and is used to obtain an image of the sealing ring 9 carried on the flexible vibration plate 1. The image obtained by the visual component 2 can be sent to the controller, and the controller identifies the distribution position of the sealing ring 9 on the flexible vibration plate 1 based on the image information, and uses this distribution position as the picking position of the four-axis suction nozzle 3, thereby guiding the four-axis suction nozzle 3 to perform precise suction.

[0037] Specifically, the visual component 2 is usually composed of an industrial camera, a lens, and a light source. The camera is responsible for capturing images, the lens determines the field of view and magnification, and the light source is used to ensure that the image is clear and has appropriate contrast. The controller is responsible for receiving image data from the visual component 2, performing image processing and analysis, and outputting control signals to the four-axis nozzle 3. A reliable communication interface, such as Ethernet, USB, etc., is required between the visual component 2 and the controller to achieve real-time data transmission.

[0038] The camera in the visual component 2 captures the image of the sealing ring 9 on the flexible vibration plate 1 in a continuous or triggered manner; performs pre-processing operations such as denoising and contrast enhancement on the captured image to improve the accuracy of subsequent image recognition; extracts the features of the sealing ring 9, such as shape, color, edge, etc., through the image processing algorithm. The extracted features are identified using machine learning or deep learning algorithms to distinguish the sealing ring 9 from other debris; the precise position of the sealing ring 9 on the flexible vibration plate 1 is calculated based on the identified features of the sealing ring 9; and the position of the sealing ring 9 in the coordinate system of the visual component 2 is converted into the pick-up position in the coordinate system of the four-axis nozzle 3.

[0039] The controller generates a corresponding control signal according to the calculated picking position; the control signal is transmitted to the four-axis suction nozzle 3 through the communication interface; after receiving the control signal, the four-axis suction nozzle 3 adjusts the working position according to the position information in the signal to accurately suck the sealing ring 9.

[0040] Through the above steps, the visual component 2 can accurately identify the position of the sealing ring 9 on the flexible vibration plate 1 and guide the four-axis suction nozzle 3 to perform accurate suction. It can be understood that the recognition and image processing of the visual component 2 and the control of the action of the four-axis suction nozzle 3 by the controller can be achieved by existing means, which is not the protection content of this embodiment and is subject to the ability to be achieved.

[0041] The four-axis suction nozzle 3 is provided with a four-axis mechanical arm and a negative pressure suction nozzle. The four-axis mechanical arm drives the negative pressure suction nozzle to adjust the working position. The four-axis mechanical arm can adopt the existing four-joint mechanical arm, which can realize the movement in the X direction and Y direction in the horizontal plane and the movement in the vertical Z direction, and can also drive the negative pressure suction nozzle to realize the rotational movement.

[0042] The flexibility and precision of the four-axis robot arm enable the negative pressure suction nozzle to accurately adjust the working position, so as to suck the sealing ring 9 from the silo. It is understandable that the structural form of the negative pressure suction nozzle may vary due to different application needs and technical requirements. In the present embodiment, the negative pressure suction nozzle includes a nozzle body, which has interconnected gas channels inside and a suction port at the end for accommodating the sealing ring 9. The gas channel generates negative pressure inside by connecting to the air source and the vacuum system. When negative pressure is applied to the suction port, a negative pressure suction force is formed between the suction nozzle and the sealing ring 9, so that the sealing ring 9 can be firmly adsorbed on the suction nozzle. When moving to the position of the cache component 4, the sealing ring 9 falls onto the cache component 4 by removing the negative pressure.

[0043] The sealing ring 9 after suction is moved to the cache assembly 4 by the four-axis suction nozzle 3. In this embodiment, the core of the cache assembly 4 is the expansion mechanism, which is composed of a pair of expansion claws 7 with variable spacing. The outer periphery of the expansion claws 7 forms an expansion portion for contacting the inner ring of the sealing ring 9, and the side of the expansion portion is designed to be an arc surface to avoid cutting the sealing ring 9. The expansion claws 7 are slidably installed on the expansion slide 10 through the expansion block 8. When the expansion claws 7 are supported from the inner ring of the sealing ring 9, the sealing ring 9 can be expanded to form an oblong hole shape. Not only does it ensure the stable expansion of the sealing ring 9, but it also avoids damage caused by edges and corners.

[0044] Among them, the expansion block 8 can be driven by a cylinder, and two expansion blocks 8 are installed on the same expansion slide 10. At least one expansion block 8 is connected to the cylinder to adjust the relative position between the two expansion blocks 8 and realize the expansion of the sealing ring 9. After the sealing ring 9 is removed, it can also restore the original position to wait for the next sealing ring 9 to be loaded.

[0045] At the same time, the device is also designed with a feeding fixture 5. It includes a clamping mechanism and a pushing mechanism. The clamping mechanism has a pair of jaws 13, and the outer periphery of the jaws 13 forms a clamping portion for contacting the inner ring of the sealing ring 9, which is also designed as an arc surface to cooperate with the opening jaws 7 to open the sealing ring 9 into a long circular hole. The pushing mechanism includes a pair of push jaws 12, and the ends of the push jaws 12 form a pushing portion for contacting the end surface of the sealing ring 9. When the jaws 13 remove the sealing ring 9 from the opening jaws 7, the push jaws 12 slide to a suitable position through the push block 11, pushing the sealing ring 9 off the jaws 13, and realizing the feeding of the sealing ring 9.

[0046] Similarly, the clamping mechanism also includes a clamping block 14 and a clamping slide. The clamping jaw 13 is slidably mounted on the clamping slide through the clamping block 14. When the clamping jaw 13 is propped up from the inner ring of the sealing ring 9, the sealing ring 9 can be expanded to form an oblong hole shape. When the sealing ring 9 is transferred from the open jaw 7 to the clamping jaw 13, the clamping jaw 13 probes into the gap of the open jaw 7, and then the open jaw 7 is loosened, and the clamping jaw 13 is expanded, so that the sealing ring 9 is transferred from the open jaw 7 to the clamping jaw 13.

[0047] The clamping block 14 can be driven by a cylinder. Two clamping blocks 14 are installed on the same expansion slide 10. At least one clamping block 14 is connected to the cylinder to adjust the relative position between the two clamping blocks 14, thereby expanding the sealing ring 9. After the sealing ring 9 is removed, it can also return to its original position and wait for the next sealing ring 9 to be loaded.

[0048] The clamping block 14 can be driven by a cylinder. Two clamping blocks 14 are installed on the same clamping slide. At least one clamping block 14 is connected to the cylinder to adjust the relative position between the two clamping blocks 14 and to support and expand the sealing ring 9. After the sealing ring 9 is removed, it can also return to its original position and wait for the next sealing ring 9 to be loaded.

[0049] like Figure 3 As shown, the push claw 12 of the pushing mechanism is an arc-shaped plate, and the push claw 12 is connected to a cylinder through the push block 11. The cylinder drives the push claw 12 to move, and the moving direction of the push claw 12 is parallel to the axis of the sealing ring 9 clamped on the clamping jaw 13. After the clamping jaw 13 expands to clamp the sealing ring 9, the moving track of the end of the push block 11 intersects with the sealing ring 9 on the clamping jaw 13, so that when the push block 11 is pushed relative to the clamping jaw 13, the end of the push claw 12 can abut against the sealing ring 9, so that the sealing ring 9 slides along the arc surface of the clamping jaw 13 until it is separated from the clamping jaw 13 and is sleeved on the workpiece 15 under the rebound effect of the sealing ring 9.

[0050] In order to improve efficiency, the buffer assembly 4 is designed with two sets of opening mechanisms, and the feeding fixture 5 includes two sets of clamping mechanisms and two sets of pushing mechanisms, which are respectively installed on a bracket. Such a design enables the device to simultaneously perform the feeding process of two sealing rings 9, greatly improving work efficiency.

[0051] It also includes a combined tool 6, which is provided with a bearing portion for bearing the workpiece 15. After the sealing ring 9 is opened and grasped, the loading fixture 5 moves to the position of the workpiece 15, and the pushing claw 12 pushes the sealing ring 9 onto the workpiece 15 to complete the entire loading process.

[0052] Through the coordinated work of the four-axis suction nozzle 3, the flexible vibration plate 1, the buffer component 4 and the feeding fixture 5, efficient and accurate feeding of the small diameter sealing ring 9 is achieved. It not only solves the problems of adhesion and overlap of the sealing ring 9 that are easy to occur when feeding on the traditional vibration plate, but also improves the feeding accuracy through the introduction of the visual component 2. At the same time, the double-station design significantly improves the feeding efficiency.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealing ring feeding device, characterized in that: include: A four-axis suction nozzle is provided with a four-axis mechanical arm and a negative pressure suction nozzle, and the four-axis mechanical arm drives the negative pressure suction nozzle to adjust the working position; a cache component includes an opening mechanism, and the opening mechanism includes a pair of opening claws with variable spacing, and the outer periphery of the opening claws forms an opening portion for contacting the inner ring of the sealing ring; The feeding fixture includes a clamping mechanism and a pushing mechanism. The clamping mechanism includes a pair of clamping jaws with variable spacing. The outer periphery of the clamping jaws forms a clamping portion for contacting the inner ring of the sealing ring. The pushing mechanism includes a pair of pushing claws. The pushing claws are slidably installed on the feeding fixture through a pushing block. The ends of the pushing claws form a pushing portion for contacting the end face of the sealing ring.

2. The sealing ring feeding device according to claim 1, characterized in that: It also includes a flexible vibration plate, which is connected to a straight vibration silo upstream, and a visual component is suspended above the flexible vibration plate. The visual component is used to obtain an image of the sealing ring carried on the flexible vibration plate.

3. The sealing ring feeding device according to claim 2, characterized in that: The moving track of the negative pressure suction nozzle of the four-axis suction nozzle connects the straight vibration silo and the buffer component, and a platform for carrying the sealing ring is formed on the flexible vibration plate.

4. The sealing ring feeding device according to claim 1, characterized in that: The side surface of the expansion part formed by the expansion claws is an arc surface, so that the sealing ring after expansion forms an oblong hole shape, and the maximum distance between the pair of expansion claws is greater than the width of the clamping claws.

5. The sealing ring feeding device according to claim 4, characterized in that: The side surface of the clamping part formed by the clamping claw is an arc surface, so that the sealing ring after being expanded forms an oblong hole shape, and the side of the pushing claw facing the clamping claw is an arc surface.

6. The sealing ring feeding device according to claim 1, characterized in that: It also includes a combined tooling, on which a bearing portion for bearing a workpiece is provided.

7. The sealing ring feeding device according to claim 1, characterized in that: Each of the spreading claws of the spreading mechanism is slidably mounted on the spreading slide seat through a spreading block, and a gap is formed between the same pair of spreading claws for the clamping claws to probe into. The spreading claws are propped up from the inner ring of the sealing ring and expand the sealing ring.

8. The sealing ring feeding device according to claim 7, characterized in that: The cache assembly includes two groups of spreading mechanisms, and the two groups of spreading mechanisms are arranged at intervals.

9. The sealing ring feeding device according to claim 1, characterized in that: The feeding fixture further comprises a displacement mechanism and a bracket, wherein the displacement mechanism comprises a connected horizontal moving part and a vertical moving part, the bracket is installed at the output end of the vertical moving part, and the clamping mechanism and the pushing mechanism are respectively installed on the bracket.

10. The sealing ring feeding device according to claim 9, characterized in that: Two groups of clamping mechanisms and two groups of pushing mechanisms are installed on the bracket. The two groups of clamping mechanisms are arranged at intervals, and the pushing mechanisms are distributed one by one with the clamping mechanisms.

Images