Adjustable screw tightening device for feeding system

Abstract

The utility model relates to the technical field of screw tightening devices, and discloses an adjustable screw tightening device for a feeding system, which comprises a support base, the upper surface of the support base is fixedly connected with a stable limiting frame, and the four sides of the inner bottom wall of the stable limiting frame are fixedly connected with electric push rods; the top of the electric push rod is fixedly connected with a first limiting lifting frame. According to the adjustable screw tightening device for the feeding system, the supporting base, the stable limiting frame, the electric push rod, the operation table, the limiting block and the first limiting lifting frame are arranged in a matched mode; during use, a worker can start an electric push rod through a synchronous starting controller to drive a first limiting lifting frame to be limited in a stable limiting frame through a limiting block for stable lifting until the first limiting lifting frame is adjusted to a proper height, and the effect that the first limiting lifting frame can be adjusted to the proper height according to use needs when a screw is tightened is achieved; and the device can be conveniently matched with a feeding mechanism or other devices for use.

Description

Technical Field

[0001] This utility model relates to the technical field of screw tightening devices, specifically a screw tightening device for an adjustable feeding system. Background Technology

[0002] Currently, in China's manufacturing industry, screws are often used to fasten and fix workpieces. However, screw fastening is repetitive and tedious. Many production lines in China use manual labor or screw-tightening equipment to fasten screws. Manual labor is inefficient and has a high error rate due to repetitive and monotonous operations.

[0003] The reference patent number is "CN211249066U", entitled "An Automatic Screw Tightening Device". Although this application solves the problem that "currently, some screw tightening devices have particularly complex structures and extremely high costs. If they are widely used, they may impose a serious burden on small and medium-sized enterprises and have low practical performance", it also has some defects. For example, the height of the device in the above application is fixed and cannot be adjusted, making operation inconvenient. Moreover, the above application can only tighten screws of one specification and cannot adjust the corresponding tightening head according to the screw specification, resulting in low practicality. Therefore, an adjustable screw tightening device for a feeding system is proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a screw tightening device for an adjustable feeding system, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a screw tightening device for an adjustable feeding system, comprising a support base, a stabilizing limit frame fixedly connected to the upper surface of the support base, electric push rods fixedly connected to all four sides of the inner bottom wall of the stabilizing limit frame, a first limiting lifting frame fixedly connected to the top of the electric push rods, an operating table fixedly connected to the top of the first limiting lifting frame, a first servo motor fixedly connected to the top of the operating table, a one-way screw fixedly connected to the output end of the first servo motor, a second limiting lifting frame threadedly connected to the surface of the one-way screw, a steel structure stabilizing connecting frame fixedly connected to the end of the second limiting lifting frame away from the one-way screw, a second servo motor fixedly connected to the right side wall of the steel structure stabilizing connecting frame, a right-angle conversion frame fixedly connected to the output end of the second servo motor, stepper motors fixedly connected to the four inner side walls of the right-angle conversion frame, four screw tightening heads of different specifications fixedly connected to the output ends of the four stepper motors, and a processing explosion-proof lighting lamp fixedly connected to the inner side wall of the operating table.

[0008] Preferably, the first limiting lifting frame is slidably connected to the stable limiting frame via a limiting block.

[0009] Preferably, there are four electric push rods, and a synchronous start controller is fixedly connected to the front side wall of the stabilizing limit frame. All four electric push rods are electrically connected to the synchronous start controller.

[0010] Preferably, the first servo motor is externally connected to a drive controller, the second servo motor is externally connected to a drive controller, and the second servo motor has a built-in high-resolution encoder, which achieves single high-precision 90° steering control through a PID control algorithm.

[0011] Preferably, the first servo motor is externally connected to a drive controller, the second servo motor is externally connected to a drive controller, and there are four stepper motors, each of which is externally connected to a pulse signal controller.

[0012] Preferably, the left and right sides of the support base are threaded with fixing bolts.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a screw tightening device for an adjustable feeding system, which has the following advantages:

[0015] This adjustable feeding system uses a screw tightening device. Through the coordinated arrangement of a support base, a stable limiting frame, an electric push rod, an operating table, a limit block, and a first limiting lifting frame, the system allows the operator to activate the electric push rod via a synchronous start controller. This drives the first limiting lifting frame to move stably up and down within the stable limiting frame, controlled by the limit block, until the desired height is achieved. This allows for easy adjustment to the appropriate height when tightening screws, facilitating integration with feeding mechanisms or other devices. The system comprises a first servo motor, a one-way screw, a second limiting lifting frame, a steel structure stable connecting frame, a right-angle conversion frame, a stepper motor, and a screw tightening head. With proper setup, the first servo motor, powered by an external power source, drives the unidirectional screw to rotate left and right. This causes the second limit lifting frame to move up and down according to the screw's tightening status, positioned on the surface of the unidirectional screw. It moves down when tightening is needed and up when not, retracting. The drive controller then activates the second servo motor, connected to a PID control algorithm, to drive the right-angle conversion frame, achieving a single, high-precision 90° rotation control adjustment to match the tightening angle of the screw tightening head. Subsequently, a pulse signal controller activates a stepper motor to control the screw tightening head to tighten the screw. This effectively matches and adjusts the tightening of screws of different sizes, making it highly practical. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a side sectional view of the structure of this utility model.

[0018] In the diagram: 1. Support base; 2. Stabilizing limit frame; 3. Electric push rod; 4. Operating table; 5. Limit block; 6. First servo motor; 7. One-way screw; 8. Second limit lifting frame; 9. Steel structure stabilizing connecting frame; 10. Second servo motor; 11. Right angle conversion frame; 12. Stepper motor; 13. Screw tightening head; 14. Machining explosion-proof lighting lamp; 15. Fixing bolt; 16. First limit lifting frame. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2This utility model provides a technical solution: an adjustable feeding system screw tightening device, including a support base 1, a stabilizing limit frame 2, an electric push rod 3, an operating table 4, a limit block 5, and a first limit lifting frame 16. In use, the operator can activate the electric push rod 3 via a synchronous start controller, causing the first limit lifting frame 16 to move stably within the stabilizing limit frame 2 via the limit block 5 until it reaches a suitable height. This allows for adjustment to a suitable height when tightening screws, facilitating use with feeding mechanisms or other devices. The stabilizing limit frame 2 is fixedly connected to the upper surface of the support base 1, and electric push rods 3 are fixedly connected to all four sides of the inner bottom wall of the stabilizing limit frame 2. The top of component 3 is fixedly connected to a first limiting lifting frame 16, and the top of the first limiting lifting frame 16 is fixedly connected to an operating platform 4. The top of the operating platform 4 is fixedly connected to a first servo motor 6. Through the cooperation of the first servo motor 6, the one-way screw 7, the second limiting lifting frame 8, the steel structure stabilizing connecting frame 9, the second servo motor 10, the right-angle conversion frame 11, the stepper motor 12, and the screw tightening head 13, in use, the first servo motor 6 is connected to an external power supply to drive the one-way screw 7 to rotate left and right, so that the threaded limit of the second limiting lifting frame 8 is limited on the surface of the one-way screw 7 and moves up and down according to the screw tightening state. When tightening is required, it moves down; when not tightening is not required, it moves up and retracts. Then, the second servo motor 10 can be started by the drive controller and connected to the PID control algorithm to drive the right-angle conversion head 13. The conversion frame 11 achieves a single high-precision 90° rotation control adjustment to match the tightening angle of the screw tightening head 13, and then the stepper motor 12 is started by the pulse signal controller to control the screw tightening head 13 to tighten the screw. This serves to match and adjust the tightening of screws of different specifications, making it highly practical. The output end of the first servo motor 6 is fixedly connected to a one-way screw 7. The surface of the one-way screw 7 is threadedly connected to a second limit lifting frame 8. The end of the second limit lifting frame 8 away from the one-way screw 7 is fixedly connected to a steel structure stabilizing connecting frame 9. The right side wall of the steel structure stabilizing connecting frame 9 is fixedly connected to a second servo motor 10. The output end of the second servo motor 10 is fixedly connected to a right-angle conversion frame 11. Stepper motors 12 are fixedly connected to the inner walls of all four sides of the control panel 1. Four screw tightening heads 13 of different specifications are fixedly connected to the output ends of the four stepper motors 12. Explosion-proof processing lighting lamps 14 are fixedly connected to the inner wall of the control panel 4. The first limit lifting frame 16 is slidably connected to the stable limit frame 2 via limit blocks 5. There are four electric push rods 3. A synchronous start controller is fixedly connected to the front wall of the stable limit frame 2. All four electric push rods 3 are electrically connected to the synchronous start controller. The first servo motor 6 is externally connected to a drive controller, and the second servo motor 10 is externally connected to a drive controller. The second servo motor 10 has a built-in high-resolution encoder and achieves single-cycle high-precision 90° steering control through a PID control algorithm. There are four stepper motors 12.Each of the four stepper motors 12 is externally connected to a pulse signal controller, and the left and right sides of the support base 1 are threaded with fixing bolts 15.

[0021] In summary, this adjustable feeding system uses a screw tightening device. Through the coordinated arrangement of a support base 1, a stable limiting frame 2, an electric push rod 3, an operating table 4, a limiting block 5, and a first limiting lifting frame 16, the operator can activate the electric push rod 3 via a synchronous start controller to drive the first limiting lifting frame 16, which is then controlled by the limiting block 5 within the stable limiting frame 2 for stable lifting until the desired height is reached. This allows for adjustment to the appropriate height when tightening screws, facilitating integration with feeding mechanisms or other devices. The system also incorporates a first servo motor 6, a one-way screw 7, a second limiting lifting frame 8, a steel structure stable connecting frame 9, a second servo motor 10, a right-angle conversion frame 11, a stepper motor 12, and a screw... The screw tightening head 13 is designed to work by connecting the first servo motor 6 to an external power source to drive the one-way screw 7 to rotate left and right. This causes the second limit lifting frame 8 to be threaded and limited on the surface of the one-way screw 7, moving up and down according to the screw tightening status. When tightening is needed, it moves down; when not tightening, it moves up and retracts. The second servo motor 10, connected to a PID control algorithm, is then activated by the drive controller to drive the right-angle conversion frame 11 to achieve a single high-precision 90° rotation control adjustment to the tightening angle of the screw tightening head 13 that matches the screw to be tightened. Then, the stepper motor 12 is activated by the pulse signal controller to control the screw tightening head 13 to tighten the screw. This allows for matching and adjusting the tightening of screws of different specifications, making it highly practical.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In the description of this utility model, it should also be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0024] In the description of this utility model, it should also be noted that all standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] It should also 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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 screw tightening device for an adjustable feeding system, comprising a support base (1), characterized in that: A stabilizing limit frame (2) is fixedly connected to the upper surface of the support base (1). Electric push rods (3) are fixedly connected to all four sides of the inner bottom wall of the stabilizing limit frame (2). A first limiting lifting frame (16) is fixedly connected to the top of the electric push rod (3). An operating table (4) is fixedly connected to the top of the first limiting lifting frame (16). A first servo motor (6) is fixedly connected to the top of the operating table (4). A one-way screw (7) is fixedly connected to the output end of the first servo motor (6). A second limiting lifting frame (8) is threaded onto the surface of the one-way screw (7). A steel structure stabilizing connection frame (9) is fixedly connected to the end of the limit lifting frame (8) away from the one-way screw (7). A second servo motor (10) is fixedly connected to the right side wall of the steel structure stabilizing connection frame (9). A right angle conversion frame (11) is fixedly connected to the output end of the second servo motor (10). Stepper motors (12) are fixedly connected to the four inner side walls of the right angle conversion frame (11). Four screw tightening heads (13) of different specifications are fixedly connected to the output ends of the four stepper motors (12). A processing explosion-proof lighting lamp (14) is fixedly connected to the inner side wall of the operating table (4).

2. The screw tightening device for an adjustable feeding system according to claim 1, characterized in that: The first limiting lifting frame (16) is slidably connected to the stable limiting frame (2) through the limiting block (5).

3. The screw tightening device for an adjustable feeding system according to claim 1, characterized in that: There are four electric push rods (3). A synchronous start controller is fixedly connected to the front side wall of the stabilizing limit frame (2). All four electric push rods (3) are electrically connected to the synchronous start controller.

4. The screw tightening device for an adjustable feeding system according to claim 1, characterized in that: The first servo motor (6) is connected to an external drive controller, the second servo motor (10) is connected to an external drive controller, and the second servo motor (10) has a built-in high-resolution encoder. The PID control algorithm is used to achieve single high-precision 90° steering control.

5. The screw tightening device for an adjustable feeding system according to claim 1, characterized in that: The number of stepper motors (12) is four, and each of the four stepper motors (12) is externally connected to a pulse signal controller.

6. The screw tightening device for an adjustable feeding system according to claim 1, characterized in that: The support base (1) has threaded fixing bolts (15) on both the left and right sides.

Images