Suction nozzle of electric screw machine
By installing a magnetic adsorption component and a limiting component inside the suction nozzle of an electric screwdriver, the problems of adsorption force attenuation and screw misalignment are solved, thereby improving the stability and strength of the screw connection and increasing tightening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing electric screwdriver nozzles tend to have weakened suction force under high-speed movement or vibration environments, causing screws to easily shift or fall off, resulting in a decrease in tightening yield and poor connection stability.
A magnetic adsorption component is installed inside the suction nozzle, combined with a limiting assembly, including a limiting groove, an elastic element, and a limiting element. The stability and strength of the screw are improved through the attraction of the magnet and the clamping effect of the limiting element.
By using magnetic attraction and clamping components, the axial stability and connection strength of the screw within the nozzle are enhanced, preventing the screw from loosening and improving tightening efficiency and stability.
Smart Images

Figure CN224073736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical manufacturing technology, and in particular to an electric screwdriver nozzle. Background Technology
[0002] In modern industrial production, electric screwdrivers, as core equipment for achieving efficient and precise screw tightening operations, are widely used in fields such as electronics manufacturing, automobile assembly, and home appliance production. Their suction nozzles, as key components that directly contact and manipulate screws, directly determine the screw's suction stability, handling accuracy, and tightening efficiency.
[0003] Referring to the existing patent publication number: CN216780911U, the electric screwdriver nozzle includes a cylindrical nozzle sleeve with a vent hole for connecting to an external negative pressure device. A limiting plate is fixedly connected to the bottom of the nozzle sleeve. A screwdriver rod passes through the inner cavity of the nozzle sleeve via a bearing. The screwdriver rod has a hollow inner groove that connects to the vent hole through a slot. A compression spring is provided in the inner groove and is connected to the top of the nozzle head. A rotating wrench is fixedly connected to the outer periphery of the screwdriver rod through a threaded hole.
[0004] However, existing suction nozzles mostly rely on a single negative pressure adsorption principle. When adsorbing screws or screws with uneven surfaces, problems such as weakening adsorption force, screw displacement, or even falling off are prone to occur. Especially in high-speed movement or vibration environments, adsorption stability is difficult to guarantee, resulting in a decrease in tightening yield and poor stability of screw connections. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an electric screwdriver suction nozzle. When suctioning screws, this invention utilizes a magnetic suction element installed inside the nozzle. This magnetic element further attracts the screws already inside the nozzle, improving the stability of the screw connection. Simultaneously, as the screw is drawn into the nozzle, it pulls the connecting element, causing it to move along with the limiting elements on both sides. These limiting elements move closer to the screw and stretch the elastic element, allowing the suction force to clamp and restrain the screw, thus improving the stability and strength of the screw connection.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An electric screwdriver nozzle, comprising:
[0008] Positioning pin, connected to an electric screwdriver;
[0009] A reinforcing part is fixed to one end of the positioning post, and the surface of the reinforcing part has a fixing part.
[0010] The suction nozzle is located at the end of the reinforcing part away from the positioning post. The suction nozzle has a suction groove inside, and the suction groove has a limiting component inside.
[0011] The present invention is further provided that an adsorption element is installed inside the suction nozzle groove, and the adsorption element is constructed as a magnet.
[0012] The present invention is further configured such that the limiting component includes: a limiting groove, an elastic element, a limiting element, and a connecting element;
[0013] The limiting grooves are all opened inside the suction nozzle and communicate with the suction nozzle groove. The limiting members are all connected in the limiting grooves by elastic members, and the connecting members are connected between the limiting members.
[0014] The present invention is further configured such that the limiting member is inclined.
[0015] The present invention is further configured such that the connector is made of an elastic material.
[0016] The present invention is further configured such that all the limiting components are located below the adsorption element.
[0017] The present invention is further configured such that a negative pressure channel connected to the suction groove is constructed between the suction nozzle and the positioning post.
[0018] The beneficial effects of this utility model are as follows: When adsorbing screws, this utility model has an adsorption component installed inside the suction nozzle. The adsorption component is constructed as a magnet, which allows the screw adsorbed in the suction nozzle to be further attracted under the action of the magnet, thereby improving the stability of the screw connection. At the same time, when the screw is attracted into the suction nozzle, it can pull the connecting component to move. At this time, the connecting component will pull the limiting components on both sides to move together. The limiting components can move closer to the screw and stretch the elastic component, so that under the action of the attraction, the limiting components can clamp and limit the screw to a certain extent, thereby improving the stability and strength of the screw connection.
[0019] 1. The electric screwdriver nozzle is equipped with an adsorption component. When adsorbing screws, the adsorption component, which is a magnet, is installed inside the nozzle. Under the action of the magnet, the screws adsorbed in the nozzle can be further attracted, thereby improving the stability of the screw connection.
[0020] 2. The electric screwdriver nozzle has a limiting component. When the screw is attracted into the nozzle, it can pull the connecting part to move. At this time, the connecting part will pull the limiting parts on both sides to move together. The limiting parts can move closer to the screw and stretch the elastic part, so that under the action of the attraction force, the limiting parts can clamp and limit the screw to a certain extent, thereby improving the stability and strength of the screw connection. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the first integral structure of an electric screwdriver nozzle proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the second integral structure of an electric screwdriver nozzle proposed in this utility model;
[0023] Figure 3 This is a front sectional view of an electric screwdriver nozzle proposed in this utility model;
[0024] Figure 4 This utility model proposes an electric screwdriver suction nozzle. Figure 3 A magnified structural diagram of point A in the middle.
[0025] In the diagram: 1. Positioning post; 2. Reinforcing part; 3. Fixing part; 4. Suction nozzle; 5. Negative pressure channel; 6. Adsorption component; 7. Connecting component; 8. Suction nozzle groove; 9. Limiting groove; 10. Limiting component; 11. Elastic component. Detailed Implementation
[0026] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0027] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.
[0028] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0029] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0030] Reference Figures 1 to 4An electric screwdriver nozzle includes: a positioning post 1, connected to the electric screwdriver and precisely aligned with the main body of the electric screwdriver to ensure accurate installation and positioning of the nozzle on the electric screwdriver, preventing the nozzle from shifting or shaking during operation; a reinforcing part 2, fixed to one end of the positioning post 1, enhancing the overall structural strength of the nozzle and resisting the risk of deformation during high-speed movement or collision; the surface of the reinforcing part 2 has a fixing part 3 to firmly fix the nozzle 4 to the electric screwdriver, preventing loosening or falling off during operation; the nozzle 4, located at the end of the reinforcing part 2 away from the positioning post 1, directly contacts and adsorbs the screw, achieving stable screw gripping through negative pressure or vacuum; the nozzle 4 has an internal nozzle groove 8 for matching with the screw to attract and limit the screw, facilitating screw fixation; the internal structure of the nozzle groove 8 has a limiting component to prevent the screw from shifting or rotating during adsorption or handling, improving positioning accuracy.
[0031] Furthermore, an adsorption element 6 is installed inside the suction nozzle groove 8. The adsorption element 6 is constructed as a magnet. Through this design, the magnetic adsorption element 6 generates additional adsorption force on ferromagnetic screws (such as steel screws) through the action of a magnetic field, forming a double guarantee with negative pressure adsorption, thereby improving the stability of the screw connection.
[0032] Specifically, refer to Figures 3 to 4 The limiting components include: limiting grooves 9, elastic members 11, limiting members 10, and connecting members 7; the limiting grooves 9 are all opened inside the suction nozzle 4 and communicate with the suction nozzle groove 8; the limiting members 10 are all connected to the limiting grooves 9 through the elastic members 11; and the connecting members 7 are connected between the limiting members 10. In this embodiment, the limiting grooves 9 provide a movement track for the limiting members 10, ensuring that the limiting members 10 move in a predetermined direction when suctioning screws. When the screw enters the suction nozzle groove 8, the screw will pull the connecting members 7 to move. At this time, the connecting members 7 will pull the limiting members 10. Under the push of the elastic members 11, the limiting members 10 fit against the screw head, thereby achieving lateral and rotational limiting of the screw.
[0033] Furthermore, the limiting member 10 is inclined. With this design, when the screw is adsorbed by the suction nozzle 4, the contact force of the inclined limiting member 10 can be decomposed into axial clamping force and lateral friction force, forming a "wedge locking" effect, which effectively prevents the screw from loosening during high-speed movement or vibration.
[0034] Furthermore, the connector 7 is constructed of an elastic material. This design allows the connector 7 to have a greater range of motion to achieve traction, which works in conjunction with the screw's adsorption.
[0035] Furthermore, the limiting components are all located below the adsorption component 6. This design avoids interference between the adsorption component 6 and the limiting components. By utilizing the combined force of the screw's own weight and magnetic attraction, the axial stability of the screw in the suction nozzle groove 8 is enhanced. Moreover, the adsorption component 6 and the limiting components can act on the screw simultaneously, improving the strength of the connection between the screw and the suction nozzle 4.
[0036] Furthermore, a negative pressure channel 5 is constructed between the suction nozzle 4 and the positioning post 1, which is connected to the suction nozzle groove 8. Through this design, the negative pressure channel 5 connects the suction nozzle to the external negative pressure device, forming a negative pressure environment, which enables the suction nozzle to generate suction force and firmly grip the screw.
[0037] Working principle: When using this utility model, the suction nozzle 4 is first connected to the electric screwdriver via the positioning post 1 and fixed under the action of the fixing part 3. At this time, the negative pressure channel 5 is connected to the negative pressure mechanism of the electric screwdriver, so that the negative pressure of the negative pressure channel 5 will attract the screw to a certain extent during operation. When the screw is attracted into the suction nozzle 4, it can pull the connecting piece 7 to move. At this time, the connecting piece 7 will pull the limiting pieces 10 on both sides to move together. The limiting pieces 10 can move closer to the screw and stretch the elastic piece 11, so that under the action of attraction, the limiting pieces 10 can clamp and limit the screw to a certain extent, improving the stability and strength of the screw connection. Furthermore, by installing an adsorption piece 6 inside the suction nozzle 4, and the adsorption piece 6 is constructed as a magnet, the screw adsorbed in the suction nozzle 4 can be further attracted under the action of the magnet, improving the stability of the screw connection.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An electric screwdriver nozzle, characterized in that The utility model relates to a kind of electric screw machine, including: Positioning column (1) is connected with electric screw machine; Reinforcing portion (2) is fixed in one end of the positioning column (1), and the surface of reinforcing portion (2) is structured with fixed part (3); Suction nozzle (4) is arranged in the end of reinforcing portion (2) away from positioning column (1), and the inside of suction nozzle (4) is provided with suction nozzle groove (8), and the inside of suction nozzle groove (8) is structured with limiting assembly.
2. An electric screwdriver nozzle according to claim 1, wherein Suction accessory (6) is installed in the inside of suction nozzle groove (8), and suction accessory (6) is structured as magnet.
3. An electric screwdriver nozzle according to claim 1, wherein The limiting assembly includes: limiting groove (9), elastic member (11), limiting piece (10) and connecting piece (7); The limiting groove (9) is all provided in the inside of suction nozzle (4) and is communicated with suction nozzle groove (8), the limiting piece (10) is all connected in limiting groove (9) by elastic member (11), and the connecting piece (7) is connected between limiting piece (10).
4. An electric screwdriver nozzle according to claim 3, wherein The limiting piece (10) is arranged obliquely.
5. An electric screwdriver nozzle according to claim 3, wherein The connecting piece (7) is structured as elastic material.
6. An electric screwdriver nozzle according to claim 3, wherein The limiting assembly is all below suction accessory (6).
7. An electric screwdriver nozzle according to claim 1, wherein Suction nozzle (4) and positioning column (1) are structured with negative pressure passage (5) communicated with suction nozzle groove (8).
Citation Information
Patent Citations
Suction nozzle of electric screw machine
CN216780911U