A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets

Abstract

This utility model discloses a floating buffer electromagnetic suction mechanism suitable for bending metal sheets, belonging to the technical field of electromagnetic suction mechanisms. It includes: a base plate; multiple buffer guide posts, which are slidably mounted on the base plate; and multiple electro-permanent magnets, which are respectively mounted on the multiple buffer guide posts. When energized, the electro-permanent magnets generate magnetic force to attract the metal sheet. This utility model uses a ball head assembly to enable the electro-permanent magnets to adaptively adjust the contact angle according to the surface curvature of the bending metal sheet, thereby solving the problem of easy damage when existing electromagnetic grippers are adapted to bending sheets.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic suction mechanism technology, specifically to a floating buffer electromagnetic suction mechanism suitable for bending metal sheets. Background Technology

[0002] During the production of cobalt plates and other metal plates, the plates are prone to unavoidable bending deformation due to their own weight. Simultaneously, metal nodules of varying sizes often form on their surface. These structural characteristics adversely affect subsequent handling and loading processes. Currently, the loading process for such metal plates largely relies on manual operation. However, because cobalt plates and other metal plates typically have large dimensions and heavy weight, manual handling not only significantly increases the labor intensity of operators but also suffers from low efficiency and high safety hazards, making it difficult to meet the automation requirements of large-scale production.

[0003] To address the drawbacks of manual handling, the industry is gradually adopting automated equipment to replace manual operations, using electromagnetic attraction to handle and load metal plates. However, currently available electromagnetic grippers with buffer strokes only have a linear buffer stroke distribution along the Z-direction (vertical direction), allowing for only unidirectional buffer adjustment. In actual operation scenarios, when the electromagnetic gripper's magnet comes into contact with a bent or deformed metal plate surface, uneven stress can easily occur at the contact surface due to poor surface flatness (bending deformation + metal nodules), causing the guide post of the electromagnetic gripper to tilt. The tilted guide post will then bear non-axial additional stress. During the operation of the gripper driven by the robotic arm, this additional stress will continuously act on the guide post. Prolonged use or overload can easily lead to guide post breakage, severely affecting the stability and safety of automated handling operations and potentially causing a chain reaction of problems such as equipment damage and production interruptions.

[0004] To address the aforementioned problems, this invention provides a floating, buffered electromagnetic suction mechanism suitable for bent metal sheets. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a floating, buffered electromagnetic gripping mechanism suitable for bent metal sheets. By using a ball-head assembly, the electro-permanent magnet can adaptively adjust its contact angle according to the surface curvature of the bent metal sheet, thereby solving the problem of easy damage to existing electromagnetic grippers when adapted to bent sheets.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a floating, buffered electromagnetic suction mechanism suitable for bending metal sheets, comprising: substrate; Multiple buffer guide posts are slidably mounted on the substrate. Multiple electro-permanent magnets are respectively mounted on multiple buffer guide posts, which generate magnetic force to attract metal plates when energized.

[0007] Preferably, the electro-permanent magnet is connected to the corresponding buffer guide post via a ball head assembly.

[0008] Preferably, the substrate is provided with a plurality of through holes adapted to the buffer guide post, and a sleeve assembly is installed inside the through hole to reduce the resistance when the buffer guide post slides.

[0009] Preferably, a spring is provided on the outer side of the buffer guide post, with one end of the spring abutting against the sleeve assembly and the other end abutting against the ball head assembly.

[0010] Preferably, the sleeve assembly includes: A bushing is installed inside the through hole, with its outer diameter matching the through hole and its inner diameter matching the buffer guide post.

[0011] Preferably, the upper end of the bushing is folded outwards to form a flange that overlaps the upper side of the substrate, and the lower end of the bushing extends through the through hole to the bottom of the substrate and is threaded with a nut.

[0012] Preferably, the upper end of the buffer guide post extends through the bushing to the top of the bushing and is fixedly connected to a platform cap.

[0013] Preferably, the ball head assembly includes: A ball head, which is fixedly installed on the lower end face of the buffer guide post; A ball seat, which is fixedly connected to a corresponding electro-permanent magnet; The ball head is rotatably connected to the ball seat.

[0014] Preferably, the ball seat comprises: The lower seat is connected to the corresponding electro-permanent magnet by bolts; Upper seat, which is connected to lower seat by bolts; The lower seat and the upper seat each have a hemispherical groove on their opposite sides. When the lower seat and the upper seat are closed, the two hemispherical grooves cooperate to form a spherical groove that matches the ball head. The upper seat has a through hole on the groove wall of the hemispherical groove.

[0015] Preferably, a flange is fixedly installed on the base plate, and the flange is connected to external hoisting equipment.

[0016] The beneficial effects of this utility model are as follows: This invention, through the arrangement of a ball head assembly, a buffer guide post, and a spring, enables the electro-permanent magnet to adaptively adjust the contact angle according to the surface curvature of the bent metal sheet (the ball head assembly provides multiple degrees of freedom of rotation). At the same time, the spring can buffer the pressure during suction along the Z-axis, avoiding uneven local stress caused by bending deformation of the metal sheet or surface metal nodules. This prevents the buffer guide post from tilting and breaking due to non-axial additional stress, effectively improving the stability and safety of the mechanism's operation and solving the problem of easy damage when existing electromagnetic grippers are adapted to bent materials.

[0017] This invention, through the arrangement of a substrate, multiple buffer guide posts, electro-permanent magnets, and a sleeve assembly, enables multiple electro-permanent magnets to independently pick up different areas of curved metal sheets (multi-component distributed layout). The sleeve assembly reduces the frictional resistance when the buffer guide posts slide, ensuring that each electro-permanent magnet flexibly adapts to the curved surface of the sheet. This not only replaces manual labor in handling large-sized, heavy metal sheets, reducing the labor intensity of operators and improving work efficiency, but also ensures that the sheet is subjected to balanced force during the picking process and is not easy to fall off, meeting the automated operation requirements of large-scale production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention (first perspective).

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention (second perspective).

[0021] Figure 3 This is a cross-sectional view of the buffer guide post and ball head of this utility model.

[0022] Figure 4 This utility model Figure 3 Exploded view.

[0023] Figure 5 This is an exploded view of the buffer guide post, ball head, lower seat, and upper seat of this utility model.

[0024] Figure 6 This is a schematic diagram showing the installation of the buffer guide post, ball head, lower seat, and upper seat of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Base plate, 2. Flange, 3. Buffer guide post, 4. Electro-permanent magnet, 5. Through hole, 6. Spring, 7. Bushing, 8. Platform cap, 9. Ball head, 10. Lower seat, 11. Upper seat, 12. Nut. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This invention provides a floating, buffered electromagnetic suction mechanism suitable for bending metal sheets, such as... Figures 1 to 3 As shown.

[0028] Example 1: A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets includes a base plate 1, which serves as the load-bearing foundation of the entire mechanism. Its main function is to provide a stable mounting reference for other components. A flange 2 is fixedly mounted on the upper surface of the base plate 1. The structural dimensions of the flange 2 are matched with the connection interface of external lifting equipment (such as a robot). The flange 2 is rigidly connected to the lifting equipment through the bolt holes, ensuring that the entire mechanism can move synchronously with the lifting equipment, thus providing a connection prerequisite for automated handling.

[0029] Multiple through holes 5 are processed on the substrate 1. A sleeve assembly is installed in the through hole 5. A buffer guide post 3 is slidably installed through the sleeve assembly. An electro-permanent magnet 4 is installed on the buffer guide post 3. The electro-permanent magnet 4 is connected to an external power source. When energized, it generates magnetic force and can attract metal plates.

[0030] The sleeve assembly can reduce the resistance when the buffer guide post 3 slides, thereby enabling the buffer guide post 3 to perform buffering work better.

[0031] The sleeve assembly includes a bushing 7, the outer diameter of which is adapted to the inner diameter of the through hole 5, and the inner diameter of which is adapted to the outer diameter of the buffer guide post 3. The frictional resistance of the buffer guide post 3 during sliding is reduced by the lubrication characteristics of the bushing 7 (such as using a copper-based bushing or an oil-impregnated nylon bushing).

[0032] The upper end of the buffer guide post 3 extends through the inner hole of the bushing 7 to the top of the bushing 7 and is fixedly connected to the platform cap 8. The diameter of the platform cap 8 is larger than the inner diameter of the bushing 7. When the buffer guide post 3 slides down, the platform cap 8 can contact the upper end face of the bushing 7, limiting the maximum downward stroke of the buffer guide post 3 and preventing the buffer guide post 3 from falling out of the bushing 7.

[0033] To prevent the bushing 7 from falling out of the through hole 5, the upper end of the bushing 7 is folded outward to form an annular flange. The diameter of the flange is larger than the diameter of the through hole 5, so that the flange can naturally overlap the upper side of the substrate 1 when the bushing 7 is installed, forming an axial limit. At the same time, the lower end of the bushing 7 extends through the through hole 5 to the bottom of the substrate 1. A nut 12 is screwed into the external thread at the lower end of the bushing 7. Through the clamping action of the nut 12 and the flange, the bushing 7 is firmly fixed to the substrate 1.

[0034] Example 2: Based on Embodiment 1, in order to enable the electro-permanent magnet 4 to better adhere to the metal plate, a ball head assembly is installed between the electro-permanent magnet 4 and the corresponding buffer guide post 3. The ball head assembly enables the electro-permanent magnet 4 and the buffer guide post 3 to rotate at multiple angles, thereby enabling the electro-permanent magnet 4 to better adhere to the metal plate. The ball head assembly includes a ball head 9 and a ball seat.

[0035] A connecting post is fixedly installed on the ball head 9. The connecting post is threadedly connected to the lower end of the buffer guide post 3. The ball seat is fixed on the electro-permanent magnet 4. The ball head 9 and the ball seat are rotatably connected. The ball head 9 and the ball seat cooperate with each other to realize multi-angle rotation between the electro-permanent magnet 4 and the buffer guide post 3.

[0036] The ball seat includes a lower seat 10 and an upper seat 11. The lower seat 10 is connected to the corresponding electro-permanent magnet 4 by bolts, and the upper seat 11 is connected to the lower seat 10 by bolts. Both the lower seat 10 and the upper seat 11 have hemispherical grooves on their opposite sides. When the lower seat 10 and the upper seat 11 are connected together, the hemispherical grooves on the lower seat 10 and the upper seat 11 together form a spherical groove that matches the ball head 9. The groove wall of the hemispherical groove of the upper seat 11 has a through hole for the connecting post to pass through, so that the connecting post and the buffer guide post 3 can be connected smoothly.

[0037] Example 3: Based on Embodiment 2, in order to ensure the stability of the buffer guide post 3 and the electro-permanent magnet 4, a spring 6 is sleeved on the outside of the buffer guide post 3. The spring 6 is a cylindrical compression spring. One end of the spring 6 abuts against the lower end face of the nut 12 of the sleeve assembly, and the other end abuts against the upper end face of the ball head 9 of the ball head assembly. In the initial state, the spring 6 is in a slightly compressed state, so that the buffer guide post 3 will not slide without external force, thus ensuring the stability of the buffer guide post 3.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets, characterized in that, include: substrate(1); Multiple buffer guide posts (3) are slidably mounted on the substrate (1); Multiple electro-permanent magnets (4) are installed on multiple buffer guide posts (3) respectively, and generate magnetic force to attract metal plates when energized.

2. The floating, buffered electromagnetic suction mechanism for bending metal sheets as described in claim 1, characterized in that, The electro-permanent magnet (4) is connected to the corresponding buffer guide post (3) through a ball head assembly.

3. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 2, characterized in that, The substrate (1) is provided with a plurality of through holes (5) that are adapted to the buffer guide post (3). A sleeve assembly is installed inside the through hole (5) to reduce the resistance when the buffer guide post (3) slides.

4. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 3, characterized in that, A spring (6) is provided on the outside of the buffer guide post (3). One end of the spring (6) abuts against the sleeve assembly, and the other end abuts against the ball head assembly.

5. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 3, characterized in that, The sleeve assembly includes: Bushing (7) is installed inside the through hole (5), with its outer diameter matching the through hole (5) and its inner diameter matching the buffer guide post (3).

6. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 5, characterized in that, The upper end of the bushing (7) is folded outward to form a flange that overlaps the upper side of the substrate (1). The lower end of the bushing (7) extends through the through hole (5) to the bottom of the substrate (1) and is threaded with a nut (12).

7. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 5, characterized in that, The upper end of the buffer guide post (3) extends through the bushing (7) to the top of the bushing (7) and is fixedly connected to the platform cap (8).

8. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 2, characterized in that, The ball head assembly includes: Ball head (9), the ball head (9) is fixedly installed on the lower end face of the buffer guide post (3); A ball seat, which is fixedly connected to a corresponding electro-permanent magnet (4); The ball head (9) is rotatably connected to the ball seat.

9. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 8, characterized in that, The ball seat includes: The lower seat (10) is connected to the corresponding electro-permanent magnet (4) by bolts; Upper seat (11), which is connected to lower seat (10) by bolts; The lower seat (10) and the upper seat (11) are provided with hemispherical grooves on their opposite sides. When the lower seat (10) and the upper seat (11) are closed, the two hemispherical grooves cooperate to form a spherical groove that matches the ball head (9). The upper seat (11) has a through hole on the groove wall of the hemispherical groove.

10. A floating, buffered electromagnetic suction mechanism suitable for bending metal sheets as described in claim 1, characterized in that, A flange (2) is fixedly installed on the base plate (1), and the flange (2) is connected to the external hoisting equipment.

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