A compact pen type motor

Abstract

This utility model relates to the field of electric cylinder technology and discloses a compact pen-type electric cylinder, including an electric cylinder housing, a push rod, and a guide post assembly. The electric cylinder housing is slidably sleeved on the push rod. A rear cover is fixedly installed at the rear end of the electric cylinder housing. The guide post assembly is fixedly connected to the rear cover. A micro motor is fixedly installed at the front end of the rear cover. The micro motor and the guide post assembly are both located inside the electric cylinder housing. A transmission screw groove is opened in the middle of the end face of the push rod. A screw shaft is provided at the output end of the micro motor. The transmission screw groove is threaded onto the outside of the screw shaft. A guide groove is opened on the end face of the push rod corresponding to the guide post assembly. The guide groove is slidably sleeved on the outside of the guide post assembly. A slider assembly is provided on the outer side of the push rod. This utility model makes the electric cylinder structure simpler and helps to reduce the overall volume, thus conveniently meeting the needs of use in confined spaces.

Description

Technical Field

[0001] This utility model relates to the field of electric cylinder technology, and more specifically, to a compact pen-type electric cylinder. Background Technology

[0002] An electric cylinder, also known as an electric actuator or electric cylinder, converts the rotary motion of a servo micro motor into linear motion. It also transforms the precise speed, revolutions, and torque control of the servo micro motor into precise speed, position, and thrust control, thereby achieving high-precision linear motion. It is widely used in various industries, including industrial automation, robotics, aerospace, and medical equipment. For example, in industrial automation, electric cylinders are used for material handling and assembly; in robotics, they provide robots with precise motion and positioning capabilities; and in medical equipment, they are used for precise motion control of operating tables and examination beds. Existing electric cylinders typically consist of components such as lead screws, nuts, guide rails, couplings, bearings, push rods, and micro motors. Their structure is relatively complex and not compact enough. Limited by the dimensions of each component, the overall size is large, making it difficult to meet the needs of use in confined spaces. Therefore, this invention designs a compact pen-type electric cylinder to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a compact pen-type electric cylinder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A compact pen-type electric cylinder includes a cylinder housing, a push rod, and a guide post assembly. The cylinder housing is slidably fitted over the push rod. A rear cover is fixedly installed at the rear end of the cylinder housing. The guide post assembly is fixedly connected to the rear cover. A micro motor is fixedly installed at the front end of the rear cover. Both the micro motor and the guide post assembly are located inside the cylinder housing. A transmission screw groove is formed in the middle of the end face of the push rod. A screw shaft is provided at the output end of the micro motor. The transmission screw groove is threaded onto the screw shaft. A guide groove is formed on the end face of the push rod corresponding to the guide post assembly. The guide groove is slidably fitted over the guide post assembly. A slider assembly is provided on the outer side of the push rod. Anti-torsion grooves are symmetrically formed on the inner side of the cylinder housing and the slider assembly. The slider assembly is slidably connected to the anti-torsion grooves. A front cover is fixedly installed at the front end of the cylinder housing, and the push rod slides through the front cover.

[0006] As a preferred embodiment of this utility model, the guide post assembly includes two reinforcing guide rods, which are arranged symmetrically on the left and right sides.

[0007] As a preferred embodiment of this utility model, the front end of the push rod is provided with a connecting part I, and the side of the connecting part I is provided with a first mounting hole.

[0008] As a preferred embodiment of this utility model, the slider assembly includes two anti-torsion sliders, which are arranged symmetrically in an upper and lower position.

[0009] As a preferred technical solution of this utility model, a wiring terminal plug is provided through the rear cover, and the wiring terminal plug is electrically connected to the micro motor.

[0010] As a preferred embodiment of this utility model, the rear end of the rear cover is provided with a connecting part II, and the side of the connecting part II is provided with a second mounting hole.

[0011] As a preferred embodiment of this utility model, the outer diameter of the electric cylinder housing is 57mm-58mm.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention features a compact pen-shaped electric cylinder formed by sliding the cylinder housing over a push rod, mounting a micro motor at the front end of the rear cover, placing a screw shaft at the output end of the micro motor, threading a transmission groove in the middle of the push rod end face around the screw shaft, sliding the guide groove on the push rod end face around the guide post assembly at the front end of the rear cover, and allowing the slider assembly on the outside of the push rod to slide into the anti-torsion groove inside the cylinder housing. The push rod slides through the front cover, simplifying the cylinder structure and reducing its overall size, thus better meeting the needs of use in confined spaces. The guide post assembly consists of two symmetrically arranged reinforcing guide rods, providing good auxiliary support for the push rod. The slider assembly consists of two symmetrically arranged anti-torsion sliders, providing good anti-torsion for the push rod as it slides along the cylinder housing, ensuring the stability of the electric cylinder during use. Attached Figure Description

[0014] Figure 1 This is a first cross-sectional view of a compact pen-type electric cylinder according to the present invention;

[0015] Figure 2 This is a second cross-sectional view of a compact pen-type electric cylinder according to the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the push rod in a compact pen-type electric cylinder according to this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of a compact pen-type electric cylinder according to the present invention.

[0018] In the figure: 1. Electric cylinder housing; 101. Anti-torsion groove; 2. Push rod; 201. Transmission screw groove; 202. Guide groove; 203. Slider assembly; 204. Connecting part I; 3. Micro motor; 301. Screw shaft; 4. Guide post assembly; 5. Rear cover; 501. Connecting part II; 6. Front cover; 7. Terminal plug. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4 As shown, this utility model provides a compact pen-type electric cylinder, including a cylinder housing 1, a push rod 2, and a guide post assembly 4. The cylinder housing 1 is slidably sleeved on the push rod 2. A rear cover 5 is fixedly installed at the rear end of the cylinder housing 1. The guide post assembly 4 is fixedly connected to the rear cover 5. A micro motor 3 is fixedly installed at the front end of the rear cover 5. Both the micro motor 3 and the guide post assembly 4 are located inside the cylinder housing 1. A transmission screw groove 201 is opened in the middle of the end face of the push rod 2. A screw shaft 3 is provided at the output end of the micro motor 3. 01. The transmission screw groove 201 is threaded onto the outside of the screw shaft 301. The end face of the push rod 2 is provided with a guide groove 202 corresponding to the guide post assembly 4. The guide groove 202 is slidably sleeved on the outside of the guide post assembly 4. A slider assembly 203 is provided on the outside of the push rod 2. An anti-torsion groove 101 is symmetrically provided on the inside of the electric cylinder housing 1 and the slider assembly 203. The slider assembly 203 is slidably connected to the anti-torsion groove 101. A front cover 6 is fixedly installed at the front end of the electric cylinder housing 1. The push rod 2 slides through the front cover 6.

[0021] Among them, such as Figure 1 As shown, the guide post assembly 4 includes two reinforcing guide rods, which are symmetrically distributed on the left and right sides, providing good auxiliary support for the push rod 2.

[0022] Among them, such as Figure 2 As shown, the front end of the push rod 2 is provided with a connecting part I204, and the side of the connecting part I204 is provided with a first mounting hole, so that the front end of the push rod 2 can be connected to the corresponding device.

[0023] Among them, such as Figure 2 and Figure 3 As shown, the slider assembly 203 includes two anti-torsion sliders, which are symmetrically distributed vertically, and can provide a good anti-torsion effect for the push rod 2 when it moves along the electric cylinder housing 1.

[0024] Among them, such as Figure 4 As shown, the outer diameter of the electric cylinder housing 1 is 57mm-58mm.

[0025] Among them, such as Figure 2 As shown, a terminal plug 7 is provided through the rear cover 5, and the terminal plug 7 is electrically connected to the micro motor 3.

[0026] Among them, such as Figure 2 As shown, the rear end of the rear cover 5 is provided with a connecting part II501, and the side of the connecting part II501 is provided with a second mounting hole, so that the rear end of the rear cover 5 can be connected to the corresponding device.

[0027] The working principle of this utility model:

[0028] By sliding the cylinder housing 1 onto the push rod 2, mounting the micro motor 3 at the front end of the rear cover 5, setting the screw shaft 301 at the output end of the micro motor 3, threading the transmission groove 201 in the middle of the end face of the push rod 2 onto the outside of the screw shaft 301, sliding the guide groove 202 on the end face of the push rod 2 onto the outside of the guide post assembly 4 at the front end of the rear cover 5, and sliding the slider assembly 203 on the outside of the push rod 2 into the anti-torsion groove 101 inside the cylinder housing 1, and sliding the push rod 2 through the front cover 6, a compact pen-type electric cylinder can be formed. This design simplifies the structure of the electric cylinder, reducing its overall size. The screw shaft 301 is driven to rotate by the micro motor 3, which in turn drives the push rod 2 to move along the cylinder housing 1. The guide post assembly 4 consists of two reinforcing guide rods arranged symmetrically on the left and right, which can provide good auxiliary support for the push rod 2. The slider assembly 203 consists of two anti-torsion sliders arranged symmetrically on the top and bottom, which can provide good anti-torsion for the push rod 2 when it slides along the cylinder housing 1, thereby ensuring the operational stability of the electric cylinder during use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compact pen-type electric cylinder, characterized in that: It includes an electric cylinder housing (1), a push rod (2), and a guide post assembly (4); The electric cylinder housing (1) is slidably sleeved on the outside of the push rod (2). A rear cover (5) is fixedly installed at the rear end of the electric cylinder housing (1). The guide post assembly (4) is fixedly connected to the rear cover (5). A micro motor (3) is fixedly installed at the front end of the rear cover (5). The micro motor (3) and the guide post assembly (4) are both located inside the electric cylinder housing (1). The push rod (2) has a transmission screw groove (201) in the middle of its end face. The output end of the micro motor (3) is provided with a screw shaft (301). The transmission screw groove (201) is threaded onto the outside of the screw shaft (301). The end face of the push rod (2) is provided with a guide groove (202) corresponding to the guide post assembly (4). The guide groove (202) is slidably sleeved onto the outside of the guide post assembly (4). The push rod (2) is provided with a slider assembly (203) on its outer side. The inner side of the electric cylinder housing (1) is symmetrically provided with an anti-torsion groove (101) with the slider assembly (203). The slider assembly (203) is slidably connected to the anti-torsion groove (101). The front end of the electric cylinder housing (1) is fixedly installed with a front cover (6). The push rod (2) slides through the front cover (6).

2. A compact pen-type electric cylinder according to claim 1, characterized in that: The guide post assembly (4) includes two reinforcing guide rods, which are arranged symmetrically on the left and right sides.

3. A compact pen-type electric cylinder according to claim 1, characterized in that: The front end of the push rod (2) is provided with a connecting part I (204), and the side of the connecting part I (204) is provided with a first mounting hole.

4. A compact pen-type electric cylinder according to claim 1, characterized in that: The slider assembly (203) includes two anti-torsion sliders, which are arranged symmetrically in an upper and lower position.

5. A compact pen-type electric cylinder according to claim 1, characterized in that: A terminal plug (7) is provided through the rear cover (5), and the terminal plug (7) is electrically connected to the micro motor (3).

6. A compact pen-type electric cylinder according to claim 1, characterized in that: The rear end of the rear cover (5) is provided with a connecting part II (501), and a second mounting hole is provided on the side of the connecting part II (501).

7. A compact pen-type electric cylinder according to claim 1, characterized in that: The outer diameter of the electric cylinder housing (1) is 57mm-58mm.

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