Electromagnet suction cup

Abstract

The utility model relates to an electromagnet suction cup. The electromagnet suction cup comprises a suspension device and a magnetic suction induction device. The magnetic attraction induction device comprises a first conductor and a second conductor which are spaced from each other, an electromagnet is arranged between the first conductor and the second conductor, and the bottoms of the first conductor and the second conductor are flush to form an attraction plane; the bottom of the electromagnet is higher than the adsorption plane. An induction device is electrically connected between the first conductor and the second conductor, and the induction device is communicated after the iron plates adsorbed at the bottoms of the inner shell and the outer shell are conducted. The first conductor and the second conductor are arranged on the two sides of the electromagnet, the upper ends of the first conductor and the second conductor are communicated with the induction device, when the iron plate workpiece is attracted by the electromagnet, the iron plate workpiece can be tightly attached to the attraction plane, and due to the conductivity of the iron plate workpiece, the lower ends of the first conductor and the second conductor are conducted; if the sensing device can sense a conducted electric signal, the adsorption is successful, otherwise, the adsorption is unsuccessful; invalid work is avoided, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suckers, in particular to an electromagnet sucker. Background Art

[0002] When conductive workpieces such as iron plates are adsorbed and transported to the next process by the robot, the adsorption often fails and the robot continues to move to the next process, wasting time and reducing processing efficiency.

[0003] The application number is "201821597206.7", the patent name is "Non-full contact suction cup electromagnet", and the publication date is May 3, 2019. The disclosed suction cup electromagnet can only absorb iron plate workpieces, but cannot detect whether the absorption is successful.

[0004] There is a need for an electromagnet suction cup that can detect whether the adsorption is successful while adsorbing the iron plate workpiece, thereby avoiding secondary rework and reducing the processing efficiency. Utility Model Content

[0005] The embodiment of the utility model provides an electromagnet suction cup, which is used to solve the problem that the existing electromagnet suction cup can only suck up the iron plate workpiece, but cannot detect whether the suction is successful.

[0006] In order to overcome the above technical problems, according to an embodiment of the utility model, an electromagnetic chuck is provided, comprising:

[0007] a suspension device for attachment to a manipulator; and

[0008] A magnetic induction device is arranged at the lower end of the suspension device; the magnetic induction device comprises a first conductor and a second conductor spaced apart from each other, an electromagnet is arranged between the first conductor and the second conductor, the bottoms of the first conductor and the second conductor are flush with each other to form an adsorption plane; the bottom of the electromagnet is higher than the adsorption plane; an induction device is electrically connected between the first conductor and the second conductor, and the induction device is connected when the iron plates adsorbed at the bottoms of the inner shell and the outer shell are turned on.

[0009] In some embodiments, the second conductor is cylindrical and is wrapped around the first conductor. An annular space is formed between the first conductor and the second conductor, and the electromagnet is disposed in the annular space.

[0010] In some embodiments, a through hole is opened at the center of the first conductor, and a wire connecting the first conductor and the second conductor to the induction device passes through the through hole.

[0011] In some embodiments, a compression spring is disposed in the through hole, and a lower end of the compression spring is lower than the adsorption plane.

[0012] In some embodiments, the compression spring is fixed in the through hole via a fixing tube, and the lower end of the fixing tube is higher than the adsorption plane.

[0013] In some embodiments, the suspension device includes a connecting plate, a connecting rod and a connecting piece. The lower end surface of the connecting plate is connected to the first conductor and the second conductor, and the upper end surface is connected to the connecting rod. The connecting piece is located on the connecting rod and is used to connect to the manipulator; the through hole passes through the connecting plate and the connecting rod.

[0014] In some embodiments, the connector is connected by a nut, a latch or a hook.

[0015] In some embodiments, the connecting member is connected by bolts, including an upper nut and a lower nut threadedly connected to the outer periphery of the connecting rod.

[0016] In some embodiments, the outer periphery of the top end of the connecting rod includes a plurality of facets.

[0017] The technical solution provided by the embodiment of the utility model may include the following beneficial effects:

[0018] The utility model arranges a first conductor and a second conductor on both sides of an electromagnet, the upper ends of the first conductor and the second conductor are connected with a sensing device, the bottom surface of the electromagnet is higher than the lower end surfaces of the first conductor and the second conductor, the lower end surfaces of the first conductor and the second conductor are adsorption planes, when the iron plate workpiece is adsorbed by the electromagnet, it will be close to the adsorption plane, due to the conductivity of the iron plate workpiece, the lower ends of the first conductor and the second conductor are connected, and the sensing device can sense the conductive electrical signal, indicating that the adsorption is successful, otherwise the adsorption is unsuccessful; the electromagnet suction cup can judge whether the adsorption is successful, avoid invalid work, and improve processing efficiency.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0021] Figure 1 The figure is a schematic front view of an electromagnet suction cup according to an exemplary embodiment.

[0022] Figure 2 yes Figure 1 Section view “AA” in the figure.

[0023] Figure 3 It is a three-dimensional schematic diagram of an electromagnet chuck according to an exemplary embodiment.

[0024] In the figure, 1, suspension device; 101, connecting plate; 102, connecting rod; 1021, edge surface; 103, connecting piece; 1031, upper nut; 1032, lower nut;

[0025] 2. Magnetic induction device; 201. First conductor; 202. Second conductor; 203. Electromagnet; 204. Adsorption plane; 205. Annular space; 206. Through hole; 207. Compression spring; 208. Fixed tube. DETAILED DESCRIPTION

[0026] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-3As shown, the utility model provides an electromagnet suction cup, and some specific embodiments are described below. One specific embodiment of the electromagnet suction cup includes a suspension device 1 for connecting to a manipulator and a magnetic suction induction device 2 installed at the lower end of the suspension device 1. When in use, the electromagnet suction cup is fixed to a manipulator above a conveyor belt of an assembly line to absorb conductive workpieces such as iron plates transported from the conveyor belt to the next process.

[0030] The specific structure of the magnetic suction induction device 2 is now introduced. The magnetic suction induction device 2 includes a first conductor 201 and a second conductor 202 spaced apart from each other. An electromagnet 203 is fixed between the first conductor 201 and the second conductor 202. When in use, the magnetic suction force is generated by turning the electromagnet 203 on and off to generate or disconnect the magnetic suction force to achieve the purpose of sucking up or releasing the iron plate workpiece. The bottoms of the first conductor 201 and the second conductor 202 are flush with each other to form an adsorption plane 204. The bottom of the electromagnet 203 is higher than the adsorption plane 204. After the iron plate workpiece is sucked up by the magnetic suction force generated by the electromagnet 203, it is blocked by the adsorption plane 204 formed by the bottoms of the first conductor 201 and the second conductor 202, so that the iron plate workpiece is sucked up to the lower end surface of the adsorption plane 204. An induction device is electrically connected between the upper ends of the first conductor 201 and the second conductor 202. Once the lower ends of the first conductor 201 and the second conductor 202 are connected, the induction device will sense an electrical signal. This induction device is a prior art, not shown in the figure, and will not be repeated here. When the inner shell and the bottom of the outer shell are connected to the adsorbed iron plate, the sensing device is connected and senses an electrical signal, proving that the iron workpiece has been sucked up. If no electrical signal is sensed, it proves that the adsorption of the iron workpiece has failed and can be re-adsorbed to avoid the possibility of adsorption failure.

[0031] In order to further introduce the structure of the electromagnet suction cup of the present application in detail, one of the specific embodiments is now unfolded, wherein the suspension device 1 includes a connecting plate 101, a connecting rod 102 and a connecting piece 103, the lower end surface of the connecting plate 101 is fixedly connected to the first conductor 201 and the second conductor 202, the upper end surface is fixedly connected to the connecting rod 102, and the connecting piece 103 is located on the connecting rod 102, which is used to connect with the manipulator so that the suspension device 1 can be installed on the manipulator, thereby driving the magnetic suction induction device 2 to adsorb the iron plate workpiece. More specifically, the second conductor 202 is cylindrical and coated on the outside of the first conductor 201, and an annular space 205 is formed between the first conductor 201 and the second conductor 202, and the electromagnet 203 is installed in the annular space 205. A through hole 206 is opened in the center of the first conductor 201, and the through hole 206 passes through the connecting plate 101 and the connecting rod 102. The wire connecting the first conductor 201 and the second conductor 202 to the induction device passes through the through hole 206, and the arrangement is more compact, reducing the external collision failure rate.

[0032] In addition, a compression spring 207 is installed at the lower end of the through hole 206 through a fixed tube 208. Specifically, the fixed tube 208 is stuck on the inner wall of the through hole 206, and the compression spring 207 is installed in the fixed tube 208. The lower end of the fixed tube 208 is higher than the adsorption plane 204, so that the fixed tube 208 does not affect the iron plate workpiece being adsorbed to the adsorption plane 204. The lower end of the compression spring 207 is lower than the adsorption plane 204. When the iron plate workpiece is adsorbed to the adsorption plane 204, the compression spring 207 will be compressed. The rebound force generated by the compression spring 207 promotes the separation of the iron plate workpiece when the electromagnet 203 is powered off.

[0033] The connector 103 in the above embodiment can also be in a variety of ways, and the connector 103 can be connected by nuts, pins or hooks. In this specific embodiment, the connector 103 is bolted, specifically including an upper nut 1031 and a lower nut 1032 threadedly connected to the outer periphery of the connecting rod 102. When in use, the connecting rod 102 is passed through the mounting hole on the manipulator, and the upper nut 1031 and the lower nut 1032 are rotated so that the upper and lower sides of the mounting hole on the manipulator are clamped to complete the fixation of the electromagnet suction cup of this application. The outer periphery of the top of the connecting rod 102 includes multiple edges 1021, which is convenient for rotating the suspension device 1.

[0034] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0035] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. An electromagnetic chuck, characterized in that: include: a suspension device for attachment to a manipulator; and A magnetic induction device is arranged at the lower end of the suspension device; the magnetic induction device comprises a first conductor and a second conductor spaced apart from each other, an electromagnet is arranged between the first conductor and the second conductor, the bottoms of the first conductor and the second conductor are flush with each other to form an adsorption plane; the bottom of the electromagnet is higher than the adsorption plane; an induction device is electrically connected between the first conductor and the second conductor, and the induction device is connected when the iron plates adsorbed at the bottoms of the inner shell and the outer shell are turned on.

2. The electromagnet chuck according to claim 1, characterized in that: The second conductor is cylindrical and covers the first conductor. An annular space is formed between the first conductor and the second conductor. The electromagnet is arranged in the annular space.

3. The electromagnet chuck according to claim 2, characterized in that: A through hole is provided at the center of the first conductor, and a wire connecting the first conductor and the second conductor to the induction device passes through the through hole.

4. The electromagnet chuck according to claim 3, characterized in that: A compression spring is arranged in the through hole, and the lower end of the compression spring is lower than the adsorption plane.

5. The electromagnet chuck according to claim 4, characterized in that: The compression spring is fixed in the through hole through a fixing tube, and the lower end of the fixing tube is higher than the adsorption plane.

6. The electromagnet chuck according to claim 3, characterized in that: The suspension device includes a connecting plate, a connecting rod and a connecting piece. The lower end surface of the connecting plate is connected to the first conductor and the second conductor, and the upper end surface is connected to the connecting rod. The connecting piece is located on the connecting rod and is used to connect to the manipulator. The through hole runs through the connecting plate and the connecting rod.

7. The electromagnet chuck according to claim 6, characterized in that: The connecting piece is connected by a nut, a bolt or a hook.

8. The electromagnet chuck according to claim 7, characterized in that: The connecting piece is connected by bolts and comprises an upper nut and a lower nut which are threadedly connected to the outer periphery of the connecting rod.

9. The electromagnet chuck according to claim 6, characterized in that: The outer periphery of the top end of the connecting rod includes a plurality of edge faces.

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