Magnetic fixture

Abstract

The utility model discloses a magnetic fixture. The magnetic clamp is connected with a mechanical arm and comprises a mechanical arm connecting assembly, a plurality of connecting rods and a main shell. One end of the mechanical arm connecting assembly is used for being connected with a mechanical arm, the other end of the mechanical arm connecting assembly is connected with the main shell, and a partition plate is arranged in the main shell; the connecting rods are arranged in the main shell and abut against the partition plate, and an electromagnet is further arranged at the bottom of each connecting rod; through the connection mode, the magnetic attraction clamp moves along with the mechanical arm so as to attract and release the workpiece. Compared with the prior art, the magnetic clamp can move along with the mechanical arm connected with the magnetic clamp, the workpieces are attracted and released through the arranged electromagnets so as to achieve the purpose of clamping and placing the workpieces, compared with an existing electric clamping jaw, the manufacturing cost of the electromagnets of the magnetic clamp is low, and the effect of saving cost is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and in particular to a magnetic clamp. Background Art

[0002] The existing robot arm clamps usually use parallel opening and closing servo electric grippers to clamp the workpiece, that is, the robot arm is matched with the electric grippers to realize the picking, placing and moving of the workpiece. However, in practical applications, since the electric grippers need to have sufficient strength, wear resistance and corrosion resistance, high-quality materials are usually required. At the same time, in order to ensure the normal operation of the electric grippers, they need to be continuously powered.

[0003] These factors make the use of robot grippers with electric grippers more expensive, because high-quality materials and the requirement for continuous power supply set higher standards for manufacturing and maintenance, which in turn increases the cost of the entire system.

[0004] Therefore, the existing technology needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a magnetic suction clamp, aiming to solve the problem of high cost of the technical solution of using parallel opening and closing servo electric clamps to clamp workpieces in the prior art.

[0006] The technical solution of the present application is as follows: a magnetic suction clamp is provided, which is connected to a robotic arm, and includes: a robotic arm connecting assembly, a plurality of connecting rods and a main shell; one end of the robotic arm connecting assembly is used to connect to the robotic arm, and the other end of the robotic arm connecting assembly is connected to the main shell, and a partition is arranged in the main shell; each of the connecting rods is arranged in the main shell and abuts against the partition, and an electromagnet is also arranged at the bottom of each of the connecting rods; the robotic arm connecting assembly is used to move with the robotic arm and drive the electromagnet to move to adsorb and release the workpiece.

[0007] According to a further configuration of the present application, the connecting rod comprises: a limiting portion, a main body and a connecting portion; the connecting portion is located between the limiting portion and the connecting portion; a spring is provided on the outside of the main body; the connecting portion is inserted into the electromagnet; a first limiting ring is provided on the outside of one end of the limiting portion, and the connecting rod abuts against the partition through the first limiting ring.

[0008] According to a further configuration of the present application, a second limiting ring is provided on the outside of the other end of the limiting portion, the partition is located between the first limiting ring and the second limiting ring, and the first limiting ring and the second limiting ring cooperate to limit the movement of the main shell.

[0009] A further configuration of the present application also includes: a lower shell, each of the electromagnets is arranged in the lower shell, and the main shell partially wraps the lower shell.

[0010] According to a further configuration of the present application, the height of the lower shell is greater than the height of the electromagnet.

[0011] According to a further configuration of the present application, a height of the limiting portion is greater than a height difference between the lower shell and the electromagnet.

[0012] According to a further configuration of the present application, a first through hole for passing the connecting rod is provided on the partition.

[0013] According to a further configuration of the present application, the robot arm connection assembly includes: a pressure plate and a robot arm connection member, and the pressure plate is respectively connected to the robot arm connection member and the main shell.

[0014] According to a further configuration of the present application, a second through hole is provided at the center of the partition, an inner cavity is provided in the robotic arm connecting member, and the inner cavity is communicated with the second through hole.

[0015] According to a further configuration of the present application, the pressure plate and the main housing are connected by a plurality of screws.

[0016] Beneficial effects: The present application discloses a magnetic suction clamp. The magnetic suction clamp is connected to a robot arm, and comprises: a robot arm connection assembly, a plurality of connecting rods and a main housing; one end of the robot arm connection assembly is used to connect to the robot arm, and the other end of the robot arm connection assembly is connected to the main housing, and a partition is provided in the main housing; each of the connecting rods is provided in the main housing and abuts against the partition, and an electromagnet is also provided at the bottom of each of the connecting rods; the robot arm connection assembly is used to move with the robot arm and drive the electromagnet to move to adsorb and release the workpiece.

[0017] The magnetic clamp provided in the present application can move with the robotic arm connected to it, and can adsorb and release the workpiece by means of the various electromagnets provided, thereby achieving the purpose of clamping and placing the workpiece. Compared with the existing electric clamps, the production cost of the magnetic clamp is relatively low, achieving the effect of cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a structural schematic diagram of a mechanical arm fixture of the prior art;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a magnetic clamp provided in this application;

[0021] Figure 3 for Figure 2 A top view of the magnetic fixture described in ;

[0022] Figure 4 for Figure 2 A side view of the magnetic fixture described in;

[0023] Figure 5 for Figure 2 A bottom view of the magnetic fixture described in;

[0024] Figure 6 for Figure 2 A schematic diagram of the three-dimensional structure of the partition in the magnetic suction fixture described in the figure;

[0025] Figure 7 for Figure 2 A schematic structural diagram of an angled section of the magnetic suction clamp described in;

[0026] Figure 8 for Figure 2 A schematic cross-sectional structure diagram of the magnetic fixture at another angle;

[0027] Fig. 9 for Figure 2 A schematic diagram of the cross-sectional structure of the magnetic suction clamp in a natural state;

[0028] Fig.10 for Figure 2 A schematic diagram of the cross-sectional structure of the magnetic fixture described in the figure when the magnetic workpiece is attracted;

[0029] Fig.11 for Figure 2 A schematic diagram of the cross-sectional structure of the magnetic fixture described in the figure when the workpiece is being moved;

[0030] Fig.12 for Figure 2 Schematic diagram of the cross-sectional structure of the magnetic suction clamp described in the workpiece release state.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. electric gripper; 10. mechanical arm connecting assembly; 20. connecting rod; 30. main housing; 40. electromagnet; 50. spring; 60. lower housing; 70. screw; 11. pressure plate; 12. mechanical arm connecting piece; 21. limiting part; 22. main body; 23. connecting part; 31. partition; 121. inner cavity; 221. first limiting ring; 222. second limiting ring; 311. first through hole; 312. second through hole. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0034] like Figure 1 As shown, the existing mechanical arm clamp uses a parallel opening and closing servo electric clamp 1 to clamp the workpiece, that is, the mechanical arm cooperates with the electric clamp 1 to realize the picking, placing and moving of the workpiece.

[0035] However, in actual application, the electric gripper 1 usually needs to be made of high-quality materials to ensure that the electric gripper 1 has sufficient strength, wear resistance and corrosion resistance, and the electric gripper needs to be continuously powered, which results in a high cost for the use of a robotic arm clamp using the electric gripper 1.

[0036] Furthermore, when the electric gripper 1 grasps the workpiece, it has the actions of opening and closing the gripper to grasp the workpiece, and these actions take a lot of time when clamping the workpiece; and, the opening and closing actions of the electric gripper 1 require a certain amount of space, which limits the ability of the robot arm to operate in a small space, and also makes the position of the clamped workpiece relatively limited; moreover, in the process of clamping the workpiece, if the clamping force of the electric gripper 1 is not flexible and controllable enough, or the clamping force is too large, it is easy to cause damage to the workpiece, causing losses to the user; in addition, in the process of the electric gripper 1 moving large or unstable workpieces, there is a risk of the workpiece falling due to vibration or other unstable factors.

[0037] Therefore, the method of taking, placing and moving the workpiece by using a mechanical arm in conjunction with the electric gripper 1 in the prior art has certain disadvantages, and the prior art needs to be improved and developed.

[0038] Therefore, based on the above technical problems, the utility model provides a magnetic suction clamp. Figures 2 to 12 And specific embodiments are provided for illustration.

[0039] like Figures 2 to 12As shown, the magnetic suction clamp provided by the utility model is used to clamp a workpiece, such as a material box, and the magnetic suction clamp is connected to a robot arm. The magnetic suction clamp comprises: a robot arm connection assembly 10, a plurality of connecting rods 20 and a main shell 30; one end of the robot arm connection assembly 10 is used to connect to the robot arm, and the other end of the robot arm connection assembly 10 is connected to the main shell 30, and a partition 31 is arranged in the main shell 30; each of the connecting rods 20 is arranged in the main shell 30 and abuts against the partition 31, and an electromagnet 40 is also arranged at the bottom of each of the connecting rods 20; the robot arm connection assembly 10 is used to move with the robot arm and drive the electromagnet 40 to move to adsorb and release the workpiece.

[0040] Because the present application mainly describes the magnetic clamp, the robotic arm is not described. The robotic arm connected to the magnetic clamp can be any robotic arm and is not limited here.

[0041] Specifically, in actual application, the magnetic clamp is connected to the robotic arm, and the magnetic clamp is connected to the robotic arm through the robotic arm connecting assembly 10, so that the robotic arm can drive the magnetic clamp to move, and the magnetic clamp can move with the movement of the robotic arm to absorb and release the workpiece.

[0042] like Figure 2 , Figure 6 and Figure 7 As shown, the number of the electromagnets 40 arranged at the bottom of the magnetic clamp can be set according to actual conditions. Of course, the connecting rod 20 and the electromagnet 40 are arranged correspondingly. One electromagnet 40 is arranged at the bottom of a connecting rod 20. In the embodiment of the present application, four electromagnets 40 are arranged in the magnetic clamp for illustration.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the robot arm connection assembly 10 is connected to the robot arm and the main housing 30 respectively, and a plurality of connecting rods 20 are arranged in the main housing 30, and the electromagnet 40 is arranged at the bottom of each connecting rod 20. The magnetic suction fixture can adsorb and release the workpiece through the electromagnet 40 to take out and place the workpiece. Of course, the adsorbed workpiece needs to be made of magnetic material; for non-magnetic workpieces, an iron sheet can be set on the workpiece so that the electromagnet 40 can adsorb the workpiece.

[0044] And, for the movement of each of the electromagnets 40, as Figure 5 , Figure 6 and Figure 7As shown, the present application provides the partition plate 31 abutting against each of the connecting rods 20 inside the main housing 30. In this way, when the main housing 30 moves with the robot arm connection assembly 10, each of the connecting rods 20 will also be driven to move.

[0045] In the natural state, the partition 31 abuts against each of the connecting rods 20 , but when the robot arm moves, the partition 31 will also slide along the side walls of each of the connecting rods 20 .

[0046] In this way, after the magnetic suction clamp is connected to the robot arm, the magnetic suction clamp can move with the robot arm connected thereto, and absorb and release the workpiece by means of the various electromagnets 40 provided, so as to achieve the effect of clamping and placing the workpiece.

[0047] In this way, the electromagnet 40 is used as a magnetic gripper at the end of the robot arm to perform actions such as suction, lifting, loading, placing, and carrying for an automated production line. The magnetic suction fixture is used as the end tool of the robot arm, which has a strong adsorption capacity and is easy to position the workpiece. In the working process, it not only reduces the working time, but also reduces the process required for automation and ensures the smooth progress of the process, reducing manual operation; and, especially for the existing electric gripper, the production cost of the magnetic suction fixture is relatively low, which achieves the effect of cost saving for the existing technology.

[0048] In addition, each of the electromagnets in the utility model is an independent magnetic attraction structure, and each of the electromagnets does not affect each other. In this way, even if one of the electromagnets cannot work normally, for example, there is a foreign object on the contact surface of one of the electromagnets, which affects the work, the other electromagnets will not be affected and can normally play the role of adsorbing the workpiece.

[0049] Moreover, the shape and magnetic force of the electromagnet 40 in the magnetic suction fixture can be customized according to the actual requirements of the customer, thereby achieving the effect of improving flexibility.

[0050] Further, in a possible implementation manner, the connecting rod 20 is connected to the electromagnet 40 in a plug-in manner. Each connecting rod 20 is plugged into one of the electromagnets 40, so that the electromagnet 40 is disposed at the bottom of each connecting rod 20.

[0051] Further, in a possible embodiment, the connecting rod 20 has: a limiting portion 21, a main body 22 and a connecting portion 23; the main body 22 is located between the limiting portion 21 and the connecting portion 23; a spring 50 is arranged on the outside of the main body 22; the connecting portion 23 is threadedly connected into the electromagnet 40; a first limiting ring 221 is arranged on the outside of one end of the limiting portion 21, and the connecting rod 20 abuts against the partition 31 through the first limiting ring 221.

[0052] Specifically, the connecting rod 20 in the present application is divided into three parts, which are, from top to bottom, the limiting part 21, the main body 22 and the connecting part 23 when the magnetic clamp is placed naturally. The connecting part 23 is connected to the electromagnet 40 by a threaded connection. The connecting part 23 is made into a needle drill shape, and a threaded hole is opened on the electromagnet 40 so that the connecting part 23 can be threadedly inserted into the electromagnet 40. In addition, during installation, it is necessary to apply 242 glue to the threaded part of the connecting part 23 to strengthen the connection between the connecting rod 20 and the electromagnet 40 to prevent the electromagnet 40 from loosening after long-term use.

[0053] In addition, a spring 50 is wound around the outside of the main body 22 to provide elastic force. In a natural state, the spring 50 just contacts the lower shell 60 and the connecting rod 20. The spring 50 is in a normal state without elastic force. The outside of one end of the limiting portion 21, that is, the periphery of the top of the limiting portion 21 is provided with a first limiting ring 221, and the connecting rod 20 can be abutted against the partition 31 through the first limiting ring 221. The first limiting ring 221 can be a circular ring.

[0054] When the electromagnet 40 is adsorbing the workpiece, the spring 50 can provide elastic force for each of the electromagnets 40. In this way, when the workpiece is released and each of the electromagnets 40 is powered on for demagnetization, each of the electromagnets 40 can be immediately reset and rebounded away from the workpiece surface by the elastic force of the spring 50. Further, in a possible embodiment, a second limiting ring 222 is provided on the outside of the other end of the limiting portion 21, and the partition plate 31 is located between the first limiting ring 221 and the second limiting ring 222, and the first limiting ring 221 and the second limiting ring 222 cooperate to limit the movement of the main housing 30.

[0055] Specifically, the second limiting ring 222 is provided on the periphery of the bottom of the limiting portion 21, so that protrusions are formed on the peripheries of both ends of the limiting portion 21, and the first limiting ring 221 and the second limiting ring 222 are both located on the movement trajectory of the partition 31, so as to limit the movement of the main shell 30.

[0056] Among them, when the magnetic clamp is in a natural state, the partition 31 abuts against the first limiting ring 221; when the robot arm moves, the partition 31 slides along the side wall of the limiting portion 21 between the first limiting ring 221 and the second limiting ring 222.

[0057] Specifically, in the present application, the second limiting ring 222 may be a shaft retaining spring.

[0058] Furthermore, in a possible implementation manner, a first through hole 311 for passing the connecting rod 20 is provided on the partition plate 31 .

[0059] Specifically, the partition 31 is provided with the first through hole 311, and the number of the first through holes 311 corresponds to the number of the connecting rods 20, that is, four in the present application. Moreover, the diameter of the first through hole 311 is larger than the diameter of the connecting rod 20, and the diameter of the first through hole 311 is smaller than the diameter of the first limiting ring 221, and the diameter of the first through hole 311 is smaller than the diameter of the second limiting ring 222. This makes it possible for other parts of the connecting rod 20 other than the limiting part 21 to not pass through the first through hole, and also makes it possible to limit the movement of the partition 31.

[0060] Furthermore, in a possible implementation, the magnetic clamp further includes: a lower shell 60 , each of the electromagnets 40 is disposed in the lower shell 60 , and the main shell 30 partially wraps the lower shell 60 .

[0061] Specifically, the lower shell 60 is used to protect each of the electromagnets 40, and the main shell 30 partially wraps the lower shell 60, that is, the size of the main shell 30 is larger than the size of the lower shell 60, and the size of the main shell 30 is set so that the main shell 30 can just slide along the outer wall of the lower shell 60; and when the main shell 30 moves, it will not drive the movement of the lower shell 60.

[0062] Further, in a possible implementation, the robot arm connection assembly 10 includes: a pressure plate 11 and a robot arm connection member 12, and the pressure plate 11 is connected to the robot arm connection member 12 and the main housing 30 respectively.

[0063] Specifically, the robot arm connector 12 is used to directly connect to the robot arm, and the other end of the robot arm connector 12 connected to the robot arm is connected to the pressure plate 11, so that when the robot arm moves, it can drive the pressure plate 11 to move, thereby driving the main shell 30 to move, so that the magnetic clamp can adsorb and release the workpiece.

[0064] Furthermore, in a possible implementation manner, the pressing plate 11 and the main housing 30 are connected via a plurality of screws 70 .

[0065] Specifically, in order to strengthen the connection between the robot arm connection assembly 10 and the main housing 30, the present application sets a plurality of screws 70 between the pressure plate 11 and the main housing 30, and the pressure plate 11 and the main and object are connected by the plurality of screws 70. Among them, the plurality of screws 70 used in the present application can be hexagon socket head screws 70, and of course, can also be other types of screws 70.

[0066] Furthermore, in a possible implementation manner, a second through hole 312 is disposed at the center of the partition 31 , an inner cavity 121 is disposed in the robot arm connector 12 , and the inner cavity 121 is communicated with the second through hole 312 .

[0067] Specifically, because for the use of the electromagnet 40, the coil of the electromagnet 40 needs to be connected to an electric wire so as to energize and demagnetize the coil of the electromagnet 40, in the present application, the inner cavity 121 is provided inside the robot arm connection, and the second through hole 312 connected to the inner cavity 121 is provided in the central opening of the partition 31, so that electric wires can be connected from the external library to each of the electromagnets 40 to supply power when the electromagnet 40 needs to be demagnetized to release the workpiece.

[0068] Further, in a possible implementation manner, the height of the lower housing 60 is greater than the height of the electromagnet 40. In this way, the lower housing 60 can wrap each of the electromagnets 40 to achieve the effect of protecting each of the electromagnets 40.

[0069] Further, in a possible implementation manner, a height of the limiting portion 21 is greater than a height difference between the lower housing 60 and the electromagnet 40 .

[0070] Specifically, in the present application, when the magnetic fixture is in a natural state, the bottom of the lower housing 60 is not flush with the bottom of each electromagnet 40, and there is a height difference between the two. In the present application, the height of the limit portion 21 is set to be greater than the height difference between the lower housing 60 and the electromagnet 40.

[0071] The working process of the magnetic clamp is described below. Fig. 9 , Fig.10 , Fig.11 and Fig.12 shown.

[0072] First, when the magnetic fixture is in its natural state, Fig. 9As shown, the lower shell 60 wraps each of the electromagnets 40, but there is a height difference between the lower shell 60 and each of the electromagnets 40, that is, the bottom of the lower shell 60 is not flush with the bottom of each of the electromagnets 40, and the bottom of each of the electromagnets 40 is slightly higher than the bottom of the lower shell 60. The spring 50 on the main body 22 just contacts the lower shell 60 and the connecting rod 20, and the spring 50 has no elastic force. The structure composed of the main shell 30 and the robot arm connection assembly 10 can move up and down along the connecting rod 20, wherein the movable distance of the structure is greater than the height difference between the lower shell 60 and the electromagnet 40, so as to ensure that the moving distance of the structure is greater than the compression distance of the spring 50. In this state, the spring 50 on the main body 22 is in a natural state and has no elastic force.

[0073] When the magnetic fixture needs to clamp and absorb the workpiece, the magnetic fixture enters the state of magnetically attracting the workpiece, such as Fig.10 As shown. At this time, the robot arm connecting assembly 10 and the main housing 30 will be subjected to the force from the robot arm, which will drive the connecting rod 20 abutting against the main housing 30 and the electromagnet 40 arranged at the bottom of the connecting rod 20 to move downward together. The movement stops when the bottom of the electromagnet 40 is flush with the bottom of the lower housing 60, and at this time, each electromagnet 40 starts to adsorb the workpiece. In this state, the spring 50 on the main body 22 is compressed and stressed.

[0074] When the magnetic fixture has clamped and adsorbed the workpiece, the magnetic fixture moves with the robot arm to enter the workpiece moving state, such as Fig.11 As shown. After the electromagnet 40 has magnetically attracted the workpiece, the workpiece is adsorbed on the magnetic fixture, and the workpiece can move together with the magnetic fixture under the drive of the robot arm. In this process, the structure composed of the main housing 30 and the robot arm connection assembly 10 moves upward to the position of the second limit ring 222 and is clamped by the second limit ring 222 through the partition 31. In this state, the bottom of the electromagnet 40 is still flush with the bottom of the lower housing 60.

[0075] When the magnetic fixture moves with the robot arm to the position of the positioned workpiece, the magnetic fixture enters the workpiece release state. Fig.12As shown. That is, the coils of each of the electromagnets 40 are energized to demagnetize each of the electromagnets 40, so that the electromagnets 40 can release the workpiece, so that the electromagnets 40 are separated from the workpiece, and the workpiece is released to the positioned position. After the electromagnets 40 are separated from the workpiece, the springs 50 on each of the connecting rods 20 release the elastic force, and the connecting rods 20 and the electromagnets 40 return to the positions in the natural state, that is, from the state where the bottom of the electromagnet 40 is flush with the bottom of the lower shell 60 to the state where the bottom of the electromagnet 40 is slightly higher than the bottom of the lower shell 60. Therefore, the utility model provides each of the electromagnets 40, and after the electromagnets 40 are energized and demagnetized, the electromagnets 40 will be stretched by the elastic force of the springs 50, so that each of the electromagnets 40 can immediately leave the surface of the workpiece.

[0076] Thus, in summary, the magnetic suction fixture can realize buffering, picking, lifting, moving and positioning of the workpiece.

[0077] In the present application, a magnetic suction clamp with the electromagnet 40 is used as a magnetic gripper at the end of a robot arm and is applied to an automated production line. The magnetic suction clamp is used as the end tool of the robot arm, which has a strong adsorption ability and is easy to position the workpiece. This tool not only shortens the working time during the working process, reduces the required steps of the automation process, ensures the smooth progress of the production process, but also reduces the need for manual operation. It is particularly noteworthy that compared with the existing electric grippers, the electromagnet 40 has a lower manufacturing cost, achieving a cost saving effect. The magnetic suction clamp provided in the present application brings a more economical and efficient solution to the prior art.

[0078] Moreover, the electromagnet 40 in the magnetic clamp only needs a short current (a few seconds) to demagnetize and release the workpiece when the workpiece is put down to achieve state switching, and the magnetic clamp is not continuously powered during the movement of the workpiece. Therefore, the power consumption of the magnetic clamp is very small, which greatly reduces the cost compared to the electric clamps in the prior art that require continuous power supply.

[0079] In addition, the size, shape and magnetic force of the magnetic fixture can also be customized according to customer needs to meet the requirements of different working scenarios and workpiece characteristics. This highly customizable feature makes the magnetic fixture more flexible in application and can be more widely used in automated production.

[0080] In this application, a magnetic clamp is taken as an example to introduce the specific structure and working principle of this application, but the application of this application is not limited to the magnetic clamp, and can also be applied to the use of other similar workpieces.

[0081] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic clamp connected to a robotic arm, characterized in that: include: a robotic arm connection assembly, a plurality of links, and a main housing; One end of the mechanical arm connection assembly is used to connect with the mechanical arm, and the other end of the mechanical arm connection assembly is connected with the main shell, and a partition is arranged in the main shell; Each of the connecting rods is arranged in the main housing and abuts against the partition plate, and an electromagnet is also arranged at the bottom of each of the connecting rods; The robot arm connection assembly is used to move with the robot arm and drive the electromagnet to move to absorb and release the workpiece.

2. The magnetic clamp according to claim 1, characterized in that: The connecting rod comprises: a limiting portion, a main body portion and a connecting portion; The main body is located between the limiting part and the connecting part; a spring is arranged outside the main body; The connecting portion is threadedly connected into the electromagnet; A first limiting ring is arranged outside one end of the limiting portion, and the connecting rod is in contact with the partition plate through the first limiting ring.

3. The magnetic clamp according to claim 2, characterized in that: A second limiting ring is arranged outside the other end of the limiting portion, the partition is located between the first limiting ring and the second limiting ring, and the first limiting ring and the second limiting ring cooperate to limit the movement of the main shell.

4. The magnetic clamp according to claim 3, characterized in that: Also includes: The lower shell is provided with each electromagnet in the lower shell, and the main shell partially wraps the lower shell.

5. The magnetic clamp according to claim 4, characterized in that: The height of the lower shell is greater than the height of the electromagnet.

6. The magnetic clamp according to claim 5, characterized in that: The height of the limiting portion is greater than the height difference between the lower shell and the electromagnet.

7. The magnetic clamp according to claim 2, characterized in that: The partition plate is provided with a first through hole for passing the connecting rod.

8. The magnetic clamp according to claim 1, characterized in that: The robot arm connection assembly includes: a pressing plate and a robot arm connection piece, and the pressing plate is connected to the robot arm connection piece and the main shell respectively.

9. The magnetic clamp according to claim 8, characterized in that: A second through hole is provided at the center of the partition, and an inner cavity is provided in the mechanical arm connecting piece, and the inner cavity is communicated with the second through hole.

10. The magnetic clamp according to claim 8, characterized in that: The pressing plate and the main housing are connected via a plurality of screws.

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