Electromagnetic gripper structure with safety protection function

Abstract

The utility model provides an electromagnetic gripper structure with a safety protection function, which belongs to the technical field of electromagnetic grippers and is characterized by comprising a mechanical gripper component, an electromagnet is arranged at the bottom of the mechanical gripper component, and the electromagnetic gripper component is provided with a safety protection function. The electromagnet is detachably connected with the bottom of the mechanical gripper assembly through a telescopic device, the telescopic device is wrapped with a spring, and the spring is detachably connected with the bottom of the mechanical gripper assembly. A recess is formed in the bottom of the mechanical gripper assembly, and the depth of the recess is the same as the height of the telescopic device during compression; the inner diameter of the recess is the same as the outer diameter of the spring, and the outer diameter of the telescopic device is the same as the inner diameter of the spring; the problem that in the falling process of the electromagnet, due to spring deviation, the electromagnet falls in an inclined mode, and a workpiece cannot return to the original position can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic grippers, and in particular relates to an electromagnetic gripper structure with a safety protection function. Background Art

[0002] Electromagnetic grippers are automated end effectors that use electromagnetic force to grasp and release objects. They are widely used in industrial robots and automated production lines. They are mainly composed of electromagnets, mechanical structures (such as telescopic devices, springs, etc.) and other auxiliary components. Their working principle is based on the principle of electromagnetism, that is, when current passes through the electromagnet coil, a magnetic field is generated, which in turn generates an attraction to ferromagnetic materials.

[0003] When the electromagnetic gripper loses power, the electromagnet at its core loses its magnetism immediately or almost immediately. Therefore, in order to safely release the workpiece, many electromagnetic gripper designs integrate springs or other buffering devices (such as cylinders or hydraulic buffers). When the electromagnetic force disappears, these devices begin to work, buffering and controlling the release speed to prevent the workpiece from falling freely, thereby protecting the workpiece and equipment from damage.

[0004] However, during the falling process of the workpiece, the spring will tilt due to the horizontal force, which will cause the workpiece to fall at an angle and be unable to return to its original position. Utility Model Content

[0005] In view of this, the utility model provides an electromagnetic gripper structure with a safety protection function, which can solve the problem that the electromagnet cannot fall to its original position due to the horizontal force of the spring when it tilts and falls.

[0006] The utility model is achieved in this way:

[0007] The utility model provides an electromagnetic gripper structure with a safety protection function, which includes a mechanical gripper assembly, an electromagnet is provided at the bottom of the mechanical gripper assembly, the electromagnet is detachably connected to the bottom of the mechanical gripper assembly through a telescopic device, the outside of the telescopic device is wrapped with a spring, and the spring is detachably connected to the bottom of the mechanical gripper assembly.

[0008] On the basis of the above technical solution, the electromagnetic gripper structure with safety protection function of the utility model can also be improved as follows:

[0009] Wherein, a depression is provided at the bottom of the mechanical gripper assembly, and the depth of the depression is the same as the height of the telescopic device when it is compressed.

[0010] The beneficial effect of adopting the above-mentioned improvement scheme is that when the telescopic device moves in the recess, its bottom is in direct contact with the mechanical gripper assembly, which can provide more direct support and feedback, and help improve the stability and accuracy of the grasping action.

[0011] Furthermore, the inner diameter of the recess is the same as the outer diameter of the spring, and the outer diameter of the telescopic device is the same as the inner diameter of the spring.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are: by setting the inner diameter of the recess to be the same as the outer diameter of the spring, it is convenient to accommodate the spring; by setting the outer diameter of the telescopic device to be the same as the inner diameter of the spring, it is convenient to limit the left and right movement of the spring.

[0013] Furthermore, the height of the spring when compressed is equal to the depth of the recess.

[0014] Furthermore, there are multiple electromagnets.

[0015] Furthermore, the telescopic device is a telescopic rod, and the telescopic rod has two sections.

[0016] Furthermore, the telescopic device is a cylinder.

[0017] Furthermore, a visual camera is provided at the bottom of the mechanical gripper assembly, and the visual camera is used to photograph the position of the workpiece.

[0018] Furthermore, the electromagnet is cylindrical, and its radius is larger than the outer diameter of the spring.

[0019] Furthermore, there are five electromagnets.

[0020] Compared with the prior art, the electromagnetic gripper structure with safety protection function provided by the utility model has the following beneficial effects:

[0021] Enhanced safety protection function: Through the detachable connection between the electromagnet and the mechanical gripper assembly, and the coordinated use of the telescopic device and the spring, when the electromagnet is powered off or fails, the spring can provide a buffering effect, allowing the grasped object to be released slowly, effectively preventing damage caused by sudden falls and improving operation safety;

[0022] Improved operational stability and precision: The recessed design at the bottom of the gripper assembly allows the telescopic device to directly contact the gripper assembly when moving in the recess, providing stable support, reducing vibration and deviation, and improving the stability and precision of the gripping and placing actions;

[0023] Optimized structural design: By accurately matching the inner diameter of the recess with the outer diameter of the spring, and the outer diameter of the telescopic device with the inner diameter of the spring, it is not only easy to install and maintain, but also effectively limits the unnecessary movement of the spring, thus improving the integration and reliability of the entire system;

[0024] Flexible configuration and scalability: The telescopic device can be in the form of a telescopic rod or a cylinder to meet the needs of different loads and working spaces. The number of electromagnets can be set to multiple according to actual needs to enhance the holding force and expand the scope of application;

[0025] Intelligent integration: Adding a visual camera at the bottom of the mechanical gripper assembly can capture and analyze the position of the workpiece in real time, achieve precise positioning and grasping, and improve the intelligence level and efficiency of automated operations;

[0026] Optimized electromagnet design: The electromagnet is designed to be cylindrical, and its radius is larger than the outer diameter of the spring, ensuring the effective coverage of the magnetic force. At the same time, a large number of electromagnet layouts (such as five) can provide stronger grasping force and more uniform distribution, which is suitable for grasping workpieces of more types and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of an electromagnetic gripper structure with a safety protection function;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Mechanical gripper assembly; 2. Electromagnet; 3. Spring; 4. Telescopic device. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0032] like Figure 1 As shown, it is a first embodiment of an electromagnetic gripper structure with a safety protection function provided by the utility model. In this embodiment, it includes a mechanical gripper assembly 1, an electromagnet 2 is provided at the bottom of the mechanical gripper assembly 1, and the electromagnet 2 is detachably connected to the bottom of the mechanical gripper assembly 1 through a telescopic device 4. The outside of the telescopic device 4 is wrapped with a spring 3, and the spring 3 is detachably connected to the bottom of the mechanical gripper assembly 1.

[0033] Among them, in the above technical solution, a depression is provided at the bottom of the mechanical gripper assembly 1, and the depth of the depression is the same as the height of the telescopic device 4 when it is compressed.

[0034] Furthermore, in the above technical solution, the inner diameter of the recess is the same as the outer diameter of the spring 3 , and the outer diameter of the telescopic device 4 is the same as the inner diameter of the spring 3 .

[0035] Furthermore, in the above technical solution, the height of the spring 3 when compressed is equal to the depth of the recess.

[0036] Furthermore, in the above technical solution, there are multiple electromagnets 2.

[0037] Furthermore, in the above technical solution, the telescopic device 4 is a telescopic rod, and the telescopic rod has two sections.

[0038] like Figure 1 As shown, it is a second embodiment of an electromagnetic gripper structure with a safety protection function provided by the utility model. In this embodiment, the telescopic device 4 is a cylinder.

[0039] Furthermore, in the above technical solution, a visual camera is also provided at the bottom of the mechanical gripper assembly 1, and the visual camera is used to photograph the position of the workpiece.

[0040] Furthermore, in the above technical solution, the electromagnet 2 is cylindrical, and its radius is greater than the outer diameter of the spring 3 .

[0041] Furthermore, in the above technical solution, there are five electromagnets 2.

[0042] like Figure 1 As shown, it is a second embodiment of an electromagnetic gripper structure with a safety protection function provided by the utility model. In this embodiment, it includes a mechanical gripper assembly 1, an electromagnet 2 is provided at the bottom of the mechanical gripper assembly 1, and the electromagnet 2 is detachably connected to the bottom of the mechanical gripper assembly 1 through a telescopic device 4. The outside of the telescopic device 4 is wrapped with a spring 3, and the spring 3 is detachably connected to the bottom of the mechanical gripper assembly 1.

[0043] Among them, in the above technical solution, a depression is provided at the bottom of the mechanical gripper assembly 1, and the depth of the depression is the same as the height of the telescopic device 4 when it is compressed.

[0044] Furthermore, in the above technical solution, the inner diameter of the recess is the same as the outer diameter of the spring 3 , and the outer diameter of the telescopic device 4 is the same as the inner diameter of the spring 3 .

[0045] Furthermore, in the above technical solution, the height of the spring 3 when compressed is equal to the depth of the recess.

[0046] Furthermore, in the above technical solution, there are multiple electromagnets 2.

[0047] Furthermore, in the above technical solution, the telescopic device 4 is a cylinder.

[0048] Furthermore, in the above technical solution, a visual camera is also provided at the bottom of the mechanical gripper assembly 1, and the visual camera is used to photograph the position of the workpiece.

[0049] Furthermore, in the above technical solution, the electromagnet 2 is cylindrical, and its radius is greater than the outer diameter of the spring 3 .

[0050] Furthermore, in the above technical solution, there are five electromagnets 2.

[0051] When in use, after the mechanical gripper assembly 1 receives the signal to grasp the workpiece, the mechanical gripper assembly 1 moves above the workpiece, and the mechanical gripper assembly 1 moves downward to contact the workpiece. At this time, the electromagnet 2 moves upward, compressing the spring 3 and the telescopic device 4, and the electromagnet 2 contacts the mechanical gripper assembly 1. If the mechanical gripper assembly 1 is powered off, the spring 3 and the telescopic device 4 relax, pushing the electromagnet 2 to move downward and disconnect from the mechanical gripper assembly 1. The spring 3 moves vertically downward under the restriction of the telescopic device 4, pushing the electromagnet 2 to move downward, preventing the electromagnet 2 from having a horizontal force and falling around the workpiece.

[0052] Specifically, the principle of the utility model is:

[0053] Basic principle: The core working principle of the electromagnetic gripper is based on the attraction effect of the electromagnet. When the electromagnet is energized, a magnetic field is generated to attract the metal object under the gripping surface to achieve the gripping action. The removable connection between the electromagnet and the mechanical gripper assembly enables quick replacement or maintenance of the gripper. The telescopic device, as a dynamic support component, cooperates with the spring to provide the necessary buffer and control the falling speed when the electromagnet is powered off, ensuring the safety of the operation;

[0054] Safety protection mechanism: The concave design at the bottom of the mechanical gripper assembly matches the compression height of the telescopic device, ensuring that when the electromagnet loses its magnetic force, the telescopic device can move downward in a controlled manner in the concave instead of falling freely. At this time, the telescopic device directly contacts the bottom of the gripper assembly, providing direct support and increasing the stability of the system;

[0055] Precise control and improved stability: The precise matching of the inner diameter of the depression with the outer diameter of the spring, and the outer diameter of the telescopic device with the inner diameter of the spring, not only ensures smooth assembly of the components, but also further improves the stability of the operation by limiting the lateral movement of the spring. The compression of the spring is equal to the depth of the depression, ensuring that the telescopic device has an appropriate buffer distance when descending, avoiding a hard landing, thereby protecting the grasped objects from damage;

[0056] Multiple electromagnet design and force distribution: Using multiple electromagnets (e.g. five) can increase the gripping force, and distribute them at different positions of the gripper as needed, which can disperse the gripping force more evenly, making it suitable for grasping larger or heavier workpieces, while also increasing the reliability and flexibility of grasping;

[0057] Flexibility of telescopic device: The telescopic device is designed as a two-section telescopic rod or cylinder, which provides the telescopic function of the robot arm to adapt to the grasping requirements of different heights and depths, and increases the application range and flexibility of the electromagnetic gripper;

[0058] Intelligent function: The visual camera integrated at the bottom of the mechanical gripper assembly captures the position information of the workpiece through image recognition technology, realizes intelligent positioning, improves the accuracy and automation of grasping, and is suitable for complex and changing production environments;

[0059] Optimized design of electromagnet: The electromagnet adopts a cylindrical design, and its radius is larger than the outer diameter of the spring. This design helps to form a stronger magnetic field, improve the grasping efficiency, and facilitate heat dissipation to extend the service life.

[0060] In summary, the utility model ensures that the electromagnetic gripper can perform grasping tasks efficiently and safely under various working conditions through a series of carefully designed structural improvements and the integration of intelligent elements, reflecting technological innovation in the field of automation equipment.

Claims

1. An electromagnetic gripper structure with a safety protection function, characterized in that: The invention comprises a mechanical gripper assembly (1), wherein an electromagnet (2) is provided at the bottom of the mechanical gripper assembly (1), wherein the electromagnet (2) is detachably connected to the bottom of the mechanical gripper assembly (1) via a telescopic device (4), wherein a spring (3) is wrapped around the outside of the telescopic device (4), and wherein the spring (3) is detachably connected to the bottom of the mechanical gripper assembly (1).

2. The electromagnetic gripper structure with safety protection function according to claim 1 is characterized in that: The bottom of the mechanical gripper assembly (1) is provided with a depression, and the depth of the depression is the same as the height of the telescopic device (4) when it is compressed.

3. The electromagnetic gripper structure with safety protection function according to claim 2 is characterized in that: The inner diameter of the recess is the same as the outer diameter of the spring (3), and the outer diameter of the telescopic device (4) is the same as the inner diameter of the spring (3).

4. The electromagnetic gripper structure with safety protection function according to claim 3 is characterized in that: The height of the spring (3) when compressed is equal to the depth of the recess.

5. The electromagnetic gripper structure with safety protection function according to claim 4 is characterized in that: There are multiple electromagnets (2).

6. The electromagnetic gripper structure with safety protection function according to claim 5, characterized in that: The telescopic device (4) is a telescopic rod, and the telescopic rod has two sections.

7. The electromagnetic gripper structure with safety protection function according to claim 6, characterized in that: The telescopic device (4) is a cylinder.

8. The electromagnetic gripper structure with safety protection function according to claim 7, characterized in that: A visual camera is also provided at the bottom of the mechanical gripper assembly (1), and the visual camera is used to photograph the position of the workpiece.

9. The electromagnetic gripper structure with safety protection function according to claim 8, characterized in that: The electromagnet (2) is cylindrical, and its radius is greater than the outer diameter of the spring (3).

10. The electromagnetic gripper structure with safety protection function according to claim 9, characterized in that: There are five electromagnets (2).

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