Metal gasket alternating type magnetic adsorption lifting appliance
By designing an alternating metal pad magnetic adsorption lifting device, and utilizing the combination of a permanent magnet chuck and a short-stroke cylinder, alternating actions of magnetic adsorption and mechanical push-off are achieved. This solves the problems of difficult unloading, low efficiency, and easy damage to workpieces in existing magnetic adsorption lifting devices, and meets the high-efficiency and non-destructive gripping requirements of automated production lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUQIAN HENGJIA PRECISION MECHANICAL & ELECTRICAL CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-24
AI Technical Summary
Existing magnetic adsorption lifting devices are inefficient and pose safety hazards during unloading, easily damaging workpieces and failing to meet the high-efficiency, non-destructive gripping requirements of automated production lines.
A metal gasket alternating magnetic adsorption lifting device was designed, which uses a permanent magnet chuck combined with a short-stroke cylinder and an outer contour plate. The cylinder drives the permanent magnet chuck to move up and down, and the outer contour plate provides mechanical limiting, so as to realize the alternating action of magnetic adsorption and mechanical pushing. The unloading is fast and reliable and does not damage the gasket.
It achieves a fast and reliable unloading process, avoids workpiece damage, and improves hoisting stability and applicability, making it suitable for high-frequency, high-precision handling operations in automated production lines.
Smart Images

Figure CN224547843U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial lifting tool technology, and in particular relates to a metal pad alternating magnetic adsorption lifting tool. Background Technology
[0002] In industries such as machinery manufacturing and machine tool production, metal gaskets are common sealing or spacer elements that require frequent loading, unloading, and transfer operations. Traditional handling methods often use vacuum suction cups or mechanical grippers. However, metal gaskets have flat surfaces, are lightweight, and are easily stacked. Vacuum suction cups are prone to causing them to fall due to airtightness issues, while mechanical grippers can easily scratch or deform the gasket surface. Although magnetic adsorption can effectively attract metal parts, traditional magnetic lifting devices are often simple in structure, requiring external pushing or knocking during unloading, which is inefficient and poses safety hazards.
[0003] Therefore, there is an urgent need for a magnetic adsorption lifting device that can achieve rapid and non-destructive grasping and release to meet the cycle time requirements of automated production lines. Utility Model Content
[0004] The purpose of this invention is to provide a metal pad alternating magnetic adsorption lifting tool to solve the problems of difficult unloading, low efficiency and easy damage to workpieces in existing magnetic adsorption lifting tools.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes a permanent magnet chuck and an outer contour plate. A short-stroke cylinder is installed on the top of the outer contour plate. The output end of the short-stroke cylinder passes through the outer contour plate and is inserted into the permanent magnet chuck and fixed. A connecting frame is also installed on the top of the outer contour plate. The permanent magnet chuck slides vertically inside the outer contour plate. A pair of limiting guides are provided on the outer contour plate to limit the displacement direction of the permanent magnet chuck.
[0006] Furthermore, a cylindrical connector is installed at the top center of the connecting frame. The cylindrical connector passes through the connecting frame and is fixed by screws. A hexagonal through hole is provided on the inner side of the cylindrical connector, and a screw mounting groove is provided on the outer side of the cylindrical connector.
[0007] Furthermore, a connecting screw is inserted into the screw mounting slot and connected to the connecting end of the external three-axis rotating mechanism.
[0008] Furthermore, the limiting guide includes a cylindrical shell with an opening facing downwards. The cylindrical shell is installed on the top of the outer contour plate. A vertical guide rod is fixed in the internal cavity of the cylindrical shell. A pair of arc-shaped sliding plates are provided on the outside of the guide rod and are slidably connected to each other. The bottom of the guide rod is flush with the inner top surface of the outer contour plate.
[0009] Furthermore, a connecting plate is fixedly provided at the bottom of the two arc-shaped sliding plates. The connecting plate is embedded in the permanent magnet chuck and fixed by screws. The height of the arc-shaped sliding plate is not less than the distance from the top surface of the permanent magnet chuck to the inner top surface of the outer contour plate. The height of the internal cavity of the cylindrical shell is not less than the height of the arc-shaped sliding plate.
[0010] Furthermore, the top of the outer contour disc is provided with two circular through holes, which are located below the two cylindrical shells, and the diameter of the circular through holes is not less than the diameter of the arc-shaped sliding plate.
[0011] Furthermore, after the permanent magnet chuck picks up the metal pad and transfers it to the unloading point through the three-axis rotating mechanism, the short-stroke cylinder starts to pull up the permanent magnet chuck, causing the pad to be pressed against the outer contour plate, detach from the permanent magnet chuck, and fall down.
[0012] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects: 1. In this utility model, a short-stroke cylinder drives the permanent magnet chuck to move up and down, and combined with the mechanical limiting of the outer contour plate, the alternating action of magnetic adsorption and mechanical pushing is realized, which makes unloading fast and reliable and does not damage the gasket. 2. In this utility model, the limiting guide structure can effectively constrain the movement trajectory of the permanent magnet chuck, prevent deviation or jamming, and improve the stability of hoisting; 3. The overall structure of this utility model is compact and easy to install onto a three-axis running mechanism, making it suitable for high-frequency, high-precision handling operations in automated production lines. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the connecting frame structure of this utility model.
[0014] In the diagram: 1-Permanent magnet chuck, 2-Outer contour plate, 3-Short stroke cylinder, 4-Connecting frame, 5-Limiting guide component; 21-Circular through hole, 41-Cylindrical connector, 42-Hexagonal through hole, 43-Screw mounting slot, 51-Cylindrical shell, 52-Guide rod, 53-Arc-shaped sliding plate, 54-Connecting plate. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Combination Figures 1 to 4 The illustrated metal pad alternating magnetic adsorption hanger includes a permanent magnet chuck 1 and an outer contour plate 2. A short-stroke cylinder 3 is installed on the top of the outer contour plate 2. The output end of the short-stroke cylinder 3 passes through the outer contour plate 2 and is inserted into the permanent magnet chuck 1 and fixed. A connecting frame 4 is also installed on the top of the outer contour plate 2. The permanent magnet chuck 1 slides vertically inside the outer contour plate 2. A pair of limiting guides 5 are provided on the outer contour plate 2 to limit the displacement direction of the permanent magnet chuck 1.
[0017] Among them, a cylindrical connector 41 is installed at the middle of the top of the connecting frame 4. The cylindrical connector 41 passes through the connecting frame 4 and is fixed by screws. A hexagonal through hole 42 is provided on the inner side of the cylindrical connector 41, and a screw mounting groove 43 is provided on the outer side of the cylindrical connector 41.
[0018] A connecting screw is inserted into the screw mounting slot 43 and connected to the connecting end of the external three-axis rotating mechanism.
[0019] The limiting guide 5 includes a cylindrical shell 51 with an opening facing downwards. The cylindrical shell 51 is installed on the top of the outer contour plate 2. A vertical guide rod 52 is fixedly provided in the internal cavity of the cylindrical shell 51. A pair of arc-shaped sliding plates 53 are provided on the outside of the guide rod 52 and are slidably connected to each other. The bottom of the guide rod 52 is flush with the inner top surface of the outer contour plate 2.
[0020] Two curved sliding plates 53 are fixedly provided with connecting plates 54 at their bottoms. The connecting plates 54 are embedded in the permanent magnet chuck 1 and fixed by screws. The height of the curved sliding plates 53 is not less than the distance from the top surface of the permanent magnet chuck 1 to the inner top surface of the outer contour plate 2. The height of the internal cavity of the cylindrical shell 51 is not less than the height of the curved sliding plates 53.
[0021] The top of the outer contour plate 2 is provided with two circular through holes 21. The two circular through holes 21 are located below the two cylindrical shells 51, and the diameter of the circular through holes 21 is not less than the diameter of the arc-shaped sliding plate 53.
[0022] After the permanent magnet chuck 1 picks up the metal pad and transfers it to the unloading point through the three-axis rotating mechanism, the short-stroke cylinder 3 starts to pull up the permanent magnet chuck 1, so that the pad is pressed against the outer contour plate 2 and falls off the permanent magnet chuck 1.
[0023] Working Principle: In the initial state of the lifting device, the permanent magnet chuck 1 is in the lower position with its magnetic poles exposed. When the three-axis mechanism moves the lifting device above the stack of pads, the permanent magnet chuck 1 attracts the topmost metal pad. The lifting device then moves to the unloading point, and the short-stroke cylinder 3 is activated, pulling the permanent magnet chuck 1 upwards. At this time, the attracted pad is blocked by the lower end of the outer contour plate 2 and cannot move with it, thus separating from the permanent magnet chuck 1 and falling, completing the unloading. Afterwards, the cylinder resets, and the permanent magnet chuck 1 returns to its initial position, ready for the next gripping operation.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A metal pad alternating magnetic adsorption hanger, comprising a permanent magnet chuck (1) and an outer contour plate (2), wherein a short-stroke cylinder (3) is mounted on the top of the outer contour plate (2), and the output end of the short-stroke cylinder (3) passes through the outer contour plate (2) and is inserted into the permanent magnet chuck (1) and fixed therein, characterized in that: The outer contour disk (2) is also equipped with a connecting frame (4), the permanent magnet chuck (1) slides vertically inside the outer contour disk (2), and a pair of limiting guides (5) are provided on the outer contour disk (2) to limit the displacement direction of the permanent magnet chuck (1).
2. The metal pad alternating magnetic adsorption lifting device according to claim 1, characterized in that: A cylindrical connector (41) is installed at the top center of the connecting frame (4). The cylindrical connector (41) passes through the connecting frame (4) and is fixed by screws. A hexagonal through hole (42) is provided on the inner side of the cylindrical connector (41), and a screw mounting groove (43) is provided on the outer side of the cylindrical connector (41).
3. The metal pad alternating magnetic adsorption lifting device according to claim 2, characterized in that: The limiting guide (5) includes a cylindrical shell (51) with the opening facing downward. The cylindrical shell (51) is installed on the top of the outer contour plate (2). A vertical guide rod (52) is fixed in the inner cavity of the cylindrical shell (51). A pair of arc-shaped sliding plates (53) are provided on the outside of the guide rod (52) and are slidably connected. The bottom of the guide rod (52) is flush with the inner top surface of the outer contour plate (2).
4. The metal pad alternating magnetic adsorption lifting device according to claim 3, characterized in that: The bottom of the two arc-shaped sliding plates (53) is fixed with connecting plates (54). The connecting plates (54) are embedded in the permanent magnet chuck (1) and fixed with screws. The height of the arc-shaped sliding plate (53) is not less than the distance from the top surface of the permanent magnet chuck (1) to the inner top surface of the outer contour plate (2). The height of the internal cavity of the cylindrical shell (51) is not less than the height of the arc-shaped sliding plate (53).
5. The metal pad alternating magnetic adsorption lifting device according to claim 4, characterized in that: The top of the outer contour disk (2) is provided with two circular through holes (21), the two circular through holes (21) are located below the two cylindrical shells (51), and the diameter of the circular through holes (21) is not less than the diameter of the arc-shaped sliding plate (53).