Electromagnetic actuator

Abstract

The utility model discloses an electromagnetic actuator, which relates to the field of actuators and comprises a cylinder body, the top of the cylinder body is connected with a front cover, the bottom end and the top end inside the cylinder body are respectively provided with a lower electromagnetic pole and an upper electromagnetic pole, a piston ring is movably connected between the lower electromagnetic pole and the upper electromagnetic pole inside the cylinder body, and the piston ring is made of iron. And one end of the piston ring is connected with an execution rod, and the execution rod movably penetrates through the middle neutral gear of the upper electromagnetic pole and movably penetrates out of the front cover. According to the electromagnetic attraction type execution mode, the electromagnetic pole is installed at the top end of the bottom end, the iron piston ring is installed at the middle execution end and connected with the execution rod, when one end of the top end or the bottom end is magnetized, a magnetic field is attracted into the iron piston ring, and the execution rod stretches out or retracts back. And high-performance application is realized in a production environment with extremely high requirements or in a severe environment.

Description

Technical Field

[0001] The utility model relates to the field of actuators, in particular to an electromagnetic actuator. Background Art

[0002] The actuator is an indispensable and important component in the automatic control system. Its function is to receive the control signal sent by the controller and change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range.

[0003] The existing cylinder is a gas-driven actuator (generally called a cylinder or pneumatic cylinder), and the main execution method is AB port air in and out reversing execution. The disadvantage is that the positioning is not accurate, and because of the use of gas, noise will be generated on site, gas leakage or odor emission;

[0004] The existing electric cylinder is a motor + screw + guide rail type execution, the main execution method is to execute it as soon as the machine is fed, with precise positioning, but the cost is relatively high. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an electromagnetic actuator to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic actuator, including a cylinder body, the top of the cylinder body is connected to a front cover, the bottom and top ends of the cylinder body are respectively installed with a lower electromagnetic pole and an upper electromagnetic pole, a piston ring is movably connected between the lower electromagnetic pole and the upper electromagnetic pole inside the cylinder body, and the material of the piston ring is iron, one end of the piston ring is connected to an actuator rod, and the actuator rod movably passes through the middle gap of the upper electromagnetic pole and movably passes through the front cover.

[0007] By adopting the above technical solution, when one end of the electromagnetic pole at the top or bottom is magnetized, the magnetic field is sucked into the iron piston ring, and the actuator rod is extended or retracted. This method has accurate positioning and low cost. It uses magnetic poles to drive and can be used in high-performance production environments with extremely high requirements or harsh environments.

[0008] The utility model is further configured that two layers of wear-resistant belts are arranged on the outer side of the piston ring.

[0009] By adopting the above technical solution, wear between the piston ring and the cylinder body can be prevented.

[0010] The utility model is further configured that a sensor is installed on the outer side of the piston ring between two layers of wear-resistant belts.

[0011] By adopting the above technical solution, the sensing device is positioned.

[0012] The utility model is further configured that both ends of one side of the cylinder body are provided with mounting grooves, and the lower electromagnetic pole and the upper electromagnetic pole are inserted into and fixed inside the cylinder body through the mounting grooves.

[0013] By adopting the above technical solution, the installation and fixation of the lower electromagnetic pole and the upper electromagnetic pole are achieved.

[0014] The utility model is further configured that the outer sides of the lower electromagnetic pole and the upper electromagnetic pole are respectively connected with a lower power line and an upper power line extending to the outside of the cylinder body.

[0015] By adopting the above technical solution, power is supplied to the lower electromagnetic pole and the upper electromagnetic pole.

[0016] The utility model is further configured that the cylinder body and the front cover are detachably connected via threads.

[0017] By adopting the above technical solution, it is convenient to assemble components such as the piston ring and the actuator rod.

[0018] The utility model is further configured that the four corners of the top and the four corners of the bottom of the cylinder body are all provided with aluminum cylinder body object fixing holes.

[0019] By adopting the above technical solution, the cylinder body is fixed.

[0020] The utility model is further configured that the output end of the actuator rod is provided with an accessory mounting screw hole.

[0021] By adopting the above technical solution, a detachable connection between the actuator rod and the accessory is achieved.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] The utility model is an electromagnetic compound execution, and its main execution mode is that the top end of the bottom end is equipped with an electromagnetic pole, and the middle execution end is equipped with an iron piston ring connected with the execution rod. When the top end or the bottom end is magnetized, the magnetic field sucks the iron piston ring, and the execution rod extends or retracts. This method has accurate positioning and low cost. It adopts magnetic pole promotion and can be used with high performance in production environments with extremely high requirements or harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 Another perspective of the picture;

[0026] Figure 3 It is a cross-sectional view of the utility model;

[0027] Figure 4It is a schematic diagram of the internal structure of the utility model;

[0028] Figure 5 For this utility model Figure 4 Another perspective of the picture;

[0029] Figure 6 It is a structural schematic diagram of the cylinder body of the utility model.

[0030] In the figure: 1. Cylinder body; 2. Lower electromagnetic pole; 3. Upper electromagnetic pole; 4. Piston ring; 5. Actuator rod; 6. Wear-resistant belt; 7. Sensor; 8. Accessory mounting screw hole; 9. Mounting slot; 10. Front cover; 11. Aluminum cylinder body object fixing hole; 12. Upper power cord; 13. Lower power cord. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0032] The following describes an embodiment of the utility model based on its overall structure.

[0033] An electromagnetic actuator, such as Figure 1-6 As shown: it includes a cylinder body 1, the top of the cylinder body 1 is connected to a front cover 10, the bottom and top of the cylinder body 1 are respectively installed with a lower electromagnetic pole 2 and an upper electromagnetic pole 3, specifically, both ends of one side of the cylinder body 1 are provided with mounting grooves 9, the lower electromagnetic pole 2 and the upper electromagnetic pole 3 are inserted into and fixed in the cylinder body 1 through the mounting grooves 9, and a piston ring 4 is movably connected between the lower electromagnetic pole 2 and the upper electromagnetic pole 3 in the cylinder body 1, and the material of the piston ring 4 is iron, one end of the piston ring 4 is connected to an actuator rod 5, and the actuator rod 5 movably passes through the middle gap of the upper electromagnetic pole 3 and movably passes through the front cover 10.

[0034] The outer sides of the lower electromagnetic pole 2 and the upper electromagnetic pole 3 are respectively connected to the lower power line 13 and the upper power line 12 extending to the outside of the cylinder body 1. When one end of the lower power line 13 and the upper power line 12 is energized, there is magnetism at this time, and the magnetic field sucks the iron piston ring 4, thereby controlling the extension or retraction of the actuator 5. Specifically, when the upper power line 12 is energized and the lower power line 13 is not energized, the magnetic pole of the upper electromagnetic pole 3 is generated, and the piston ring 4 is attracted to drive the actuator rod 5 to move in the direction of the upper electromagnetic pole 3, so that the actuator rod 5 is extended; when the lower power line 13 is energized and the upper power line 12 is not energized, the magnetic pole of the lower electromagnetic pole 2 is generated, and the piston ring 4 is attracted to drive the actuator rod 5 to move in the direction of the lower electromagnetic pole 2, so that the actuator rod 5 is retracted.

[0035] like Figure 3-Figure 5As shown, two layers of wear-resistant belts 6 are provided on the outer side of the piston ring 4. When the piston ring 4 slides in the cylinder body 1, the wear-resistant belts 6 can prevent the piston ring 4 from directly contacting the cylinder body 1, thereby reducing the friction between the piston ring 4 and the cylinder body 1.

[0036] The cylinder body 1 and the front cover 10 are detachably connected via threads. After the front cover 10 is removed, the piston ring 4 and the actuator rod 5 can be assembled inside the cylinder body 1, and then the front cover 10 is covered. The front cover 10 is provided with a hole for the actuator rod 5 to move through.

[0037] Aluminum cylinder object fixing holes 11 are provided at the four corners of the top and the four corners of the bottom of the cylinder body 1 , and the cylinder body 1 is fixed on the working surface through the aluminum cylinder object fixing holes 11 .

[0038] The output end of the actuator rod 5 is provided with an accessory mounting screw hole 8 , and an actuator accessory can be connected to the output end of the actuator rod 5 .

[0039] A sensor 7 is also installed on the outside of the piston ring 4 between the two layers of wear-resistant belts 6. The sensor 7 is a user-selectable type, and its main function is to position the sensing device.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An electromagnetic actuator, comprising a cylinder (1), characterized in that: The top of the cylinder body (1) is connected to a front cover (10), and a lower electromagnetic pole (2) and an upper electromagnetic pole (3) are respectively installed at the bottom and top of the cylinder body (1). A piston ring (4) is movably connected between the lower electromagnetic pole (2) and the upper electromagnetic pole (3) inside the cylinder body (1), and the material of the piston ring (4) is iron. One end of the piston ring (4) is connected to an actuator rod (5), and the actuator rod (5) movably passes through the middle gap of the upper electromagnetic pole (3) and movably passes through the front cover (10).

2. The electromagnetic actuator according to claim 1, characterized in that: Two layers of wear-resistant belts (6) are provided on the outer side of the piston ring (4).

3. An electromagnetic actuator according to claim 2, characterized in that: A sensor (7) is installed on the outer side of the piston ring (4) between two layers of wear-resistant belts (6).

4. The electromagnetic actuator according to claim 1, characterized in that: Both ends of one side of the cylinder body (1) are provided with mounting grooves (9), and the lower electromagnetic pole (2) and the upper electromagnetic pole (3) are inserted into and fixed inside the cylinder body (1) through the mounting grooves (9).

5. The electromagnetic actuator according to claim 1, characterized in that: The outer sides of the lower electromagnetic pole (2) and the upper electromagnetic pole (3) are respectively connected to a lower power line (13) and an upper power line (12) extending to the outside of the cylinder body (1).

6. The electromagnetic actuator according to claim 1, characterized in that: The cylinder body (1) and the front cover (10) are detachably connected via threads.

7. The electromagnetic actuator according to claim 1, characterized in that: Aluminum cylinder object fixing holes (11) are provided at the four corners of the top and the four corners of the bottom of the cylinder body (1).

8. The electromagnetic actuator according to claim 1, characterized in that: The output end of the actuator rod (5) is provided with an accessory mounting screw hole (8).

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