Magnetic clamping jaw with spring protection

Abstract

The utility model relates to the technical field of mechanical production, in particular to a magnetic clamping jaw with spring protection, which comprises a magnet fixing seat, an electromagnet is arranged at the bottom of the magnet fixing seat, the electromagnet is connected with an external power supply through a wire, the magnet fixing seat is fixedly connected with a magnet support through a bolt, and the magnet support is fixedly connected with the magnet fixing seat. A limiting bolt is arranged at the top of the magnet support, a spring is arranged on the outer wall of the limiting bolt in a sleeving mode, the magnet support is fixedly installed on a sliding block of a linear sliding rail, an upper limiting block is arranged at the top of the linear sliding rail, and the limiting bolt penetrates through a through hole formed in the upper limiting block. The magnetic clamping jaw with the spring protection function has a good taking and placing effect on small workpieces in irregular shapes, and meanwhile, the arranged spring can effectively prevent precision influence and mechanism abrasion caused by rigid collision between the electromagnet and the material disc.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a magnetic clamp with spring protection. Background Art

[0002] For some irregularly shaped small iron workpieces on the market, such as small iron pieces and fish hooks, there is a problem in the automation industry that mechanical clamps cannot be used to clamp them. For example, patent CN219114086U discloses a magnetic adsorption electric clamp, which can limit the movable frame under the action of the through rod, U-shaped limit frame and stop block when the movable rod is pulled to drag the movable frame to move, so that it can move in a stable linear manner. However, when picking up and placing the workpiece, the clamp collides with the workpiece rigidly, and there is no good buffer, which is easy to be damaged. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a magnetic clamp with spring protection.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A magnetic suction clamp with spring protection is designed, comprising a magnet fixing seat, an electromagnet is arranged at the bottom of the magnet fixing seat, the electromagnet is connected to an external power supply through a wire, the magnet fixing seat is fastened to a magnet bracket through bolts, a limiting bolt is arranged on the top of the magnet bracket, a spring is sleeved on the outer wall of the limiting bolt, the magnet bracket is fixedly mounted on a slider of a linear slide rail, an upper limit block is arranged on the top of the linear slide rail, the limiting bolt passes through a through hole opened on the upper limit block, the spring is clamped between the magnet bracket and the upper limit block, the linear slide rail is mounted on a slide rail fixing plate, the slide rail fixing plate is fastened to a cylinder lower fixture of the cylinder by bolts, the cylinder is arranged on the cylinder fixing plate, the top of the cylinder fixing plate is connected to an upper fixing plate, and a mounting flange for mounting the upper fixing plate is arranged on the upper fixing plate.

[0006] Preferably, a lower limit block is provided at the bottom of the linear slide rail, and the slider of the linear slide rail abuts against the lower limit block when moving downward.

[0007] Preferably, the linear slide rail and the cylinder are both electrically or pneumatically driven.

[0008] Preferably, the limiting bolt is threadedly connected to the magnet bracket, a rubber pad is bonded to the top of the limiting bolt, and the rubber pad is moved upward by the limiting bolt to abut against the upper fixing plate.

[0009] Preferably, the number of the electromagnets is not less than two, and a plurality of the electromagnets are arranged side by side, and the corresponding cylinders, linear guide rails and magnet fixing seats are also arranged side by side.

[0010] The utility model proposes a magnetic suction clamp with spring protection, which has the beneficial effects of: adopting electromagnet suction, power-on for taking and power-off for releasing, easy operation, good effect for taking and placing small workpieces with irregular shapes, and the arranged spring can effectively prevent the precision influence and mechanism wear caused by rigid collision between the electromagnet and the material tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an exploded view of a magnetic gripper with spring protection proposed by the utility model;

[0012] Figure 2 This is an isometric view of a magnetic clamp with spring protection proposed by the utility model;

[0013] Figure 3 This is a schematic diagram of the cylinder structure of a magnetic gripper with spring protection proposed by the utility model;

[0014] Figure 4 This is an exploded view of a cylinder of a magnetic gripper with spring protection proposed by the utility model.

[0015] In the figure: 1 mounting flange, 2 upper fixing plate, 3 cylinder fixing plate, 4 cylinder, 5 cylinder lower fixture, 6 linear guide rail, 7 magnet bracket, 8 magnet fixing seat, 9 electromagnet, 10 spring, 11 limit bolt, 12 upper limit block, 13 lower limit block, 14 guide rail fixing plate. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-4 A magnetic suction clamp with spring protection comprises a magnet fixing seat 8, an electromagnet 9 is arranged at the bottom of the magnet fixing seat 8, the electromagnet 9 is connected to an external power supply through a wire, the magnet fixing seat 8 is fastened to the magnet bracket 7 through bolts, a limiting bolt 11 is arranged at the top of the magnet bracket 7, a spring 10 is sleeved on the outer wall of the limiting bolt 11, the magnet bracket 7 is fixedly mounted on the slider of the linear slide rail 6, an upper limit block 12 is arranged at the top of the linear slide rail 6, the limiting bolt 11 passes through the through hole opened on the upper limit block 12, the spring 10 is clamped between the magnet bracket 7 and the upper limit block 12, the linear slide rail 6 is mounted on the slide rail fixing plate 14, the slide rail fixing plate 14 is fastened to the cylinder lower fixture 5 of the cylinder 4 by bolts, the cylinder 4 is arranged on the cylinder fixing plate 3, the top of the cylinder fixing plate 3 is connected to the upper fixing plate 2, and the upper fixing plate 2 is provided with a mounting flange 1 for mounting the upper fixing plate 2.

[0018] A lower limit block 13 is provided at the bottom of the linear slide rail 6. When the slider of the linear slide rail 6 moves downward, it abuts against the lower limit block 13. The linear slide rail 6 and the cylinder 4 are both electrically or pneumatically driven.

[0019] The limiting bolt 11 is threadedly connected to the magnet bracket 7, and a rubber pad is bonded to the top of the limiting bolt 11. The limiting bolt 11 moves up the rubber pad to abut against the upper fixed plate 2. The number of electromagnets 9 is not less than two, and multiple electromagnets 9 are arranged side by side, and the corresponding cylinders 4, linear slide rails 6 and magnet fixing seats 8 are all arranged side by side.

[0020] Working mode: When working, after air intake, the cylinder 4 is ventilated through the piston guide rod to push the lower fixture 5 of the cylinder downward. When the lower fixture 5 of the cylinder moves downward, it drives the electromagnet 9 downward. After the electromagnet 9 reaches the material picking tray, it will encounter resistance. At this time, if it is pressed downward again without a spring buffer device, a rigid collision will occur, which will affect the material picking tray. After the spring buffer device is added, the electromagnet 9 will encounter resistance after reaching the material picking tray, and the spring 10 will be compressed upward, converting the rigid collision into a flexible collision, thereby protecting the mechanism. In addition, due to the presence of the linear slide rail 6, the accuracy of the mechanism is ensured when it moves up and down.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A magnetic gripper with spring protection, comprising a magnet fixing seat (8), characterized in that: An electromagnet (9) is arranged at the bottom of the magnet fixing seat (8), and the electromagnet (9) is connected to an external power supply via a wire. The magnet fixing seat (8) is fastened to the magnet bracket (7) via a bolt. A limit bolt (11) is arranged at the top of the magnet bracket (7), and a spring (10) is sleeved on the outer wall of the limit bolt (11). The magnet bracket (7) is fixedly mounted on a slider of the linear slide rail (6), and an upper limit block (12) is arranged at the top of the linear slide rail (6). The limit bolt (11) passes through the limit bolt (11). A through hole is provided on the upper limit block (12); the spring (10) is clamped between the magnet bracket (7) and the upper limit block (12); the linear slide rail (6) is mounted on a slide rail fixing plate (14); the slide rail fixing plate (14) is fixedly mounted on a cylinder lower fixture (5) of the cylinder (4) by bolts; the cylinder (4) is arranged on a cylinder fixing plate (3); the top of the cylinder fixing plate (3) is connected to an upper fixing plate (2); and a mounting flange (1) for mounting the upper fixing plate (2) is provided on the upper fixing plate (2).

2. The magnetic clamp with spring protection according to claim 1, characterized in that: A lower limit block (13) is provided at the bottom of the linear slide rail (6), and the slider of the linear slide rail (6) abuts against the lower limit block (13) when the slider moves downward.

3. The magnetic clamp with spring protection according to claim 1, characterized in that: The linear slide rail (6) and the cylinder (4) are both electrically or pneumatically driven.

4. The magnetic clamp with spring protection according to claim 1, characterized in that: The limiting bolt (11) is threadedly connected to the magnet bracket (7), a rubber pad is bonded to the top of the limiting bolt (11), and the limiting bolt (11) moves up to abut the rubber pad against the upper fixing plate (2).

5. The magnetic clamp with spring protection according to claim 1, characterized in that: The number of the electromagnets (9) is no less than two, and a plurality of the electromagnets (9) are arranged side by side, and the corresponding cylinders (4), linear slide rails (6) and magnet fixing seats (8) are also arranged side by side.

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