Screw rod and nut-based screwing framework, electrically-driven screwing device and method

Abstract

The invention discloses a screwing framework based on a lead screw and a nut and an electric drive screwing device and method. The screwing framework comprises an assembling base; the transmission rod body is arranged on the assembly base in an adapter assembly mode, and the transmission rod body can receive rotation kinetic energy; the rubber cylinder is fixedly connected to one end of the transmission rod body, the transmission rod body can drive the rubber cylinder to rotate, and the rubber cylinder can be in fit transmission with a nut so as to drive the nut to rotate. The technical problem that in the prior art, manual screwing-in and screwing-out operation efficiency of a long screw rod nut is low is solved.

Description

Technical Field

[0001] This invention relates to the field of nut tightening equipment technology, and more specifically, to a screw-nut tightening structure, an electrically driven tightening device, and a method. Background Technology

[0002] Currently, in the production process of some special equipment, it is often necessary to assemble a large number of long lead screws, which can be 3m to 6m in length. Each lead screw needs to be equipped with several nuts. In order to ensure the assembly quality and stability of the equipment, the nuts usually need to be screwed in or out of the lead screw accurately and securely.

[0003] In existing technologies, the screwing in and out of such long lead screw nuts is generally done manually. Due to the long length of the lead screw and the large number of nuts, manual operation not only consumes a lot of manpower and time, but also suffers from low operating efficiency. At the same time, the operating force of a single employee is limited, and for some nuts that require a high degree of tightening, multiple employees are often needed to complete the operation, which further increases production costs and operational difficulty, making it difficult to meet the needs of high-efficiency production. Summary of the Invention

[0004] To address this issue, the present invention provides a screw-nut based screw-nut screwing structure, an electrically driven screwing device and method, to solve the technical problem of low efficiency in manual screwing in and out operations for long screw nuts in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A screw-nut based screw-nut screw mechanism, comprising: Assembly base; The transmission rod is interchangeably mounted on the mounting base, and the transmission rod is capable of receiving rotational kinetic energy. A rubber cylinder is fixedly attached to one end of the transmission rod. The transmission rod can drive the rubber cylinder to rotate, and the rubber cylinder can engage with the nut to drive the nut to rotate.

[0006] Based on the above technical solution, the present invention is further described as follows: As a further aspect of the present invention The assembly base includes a base body and a limiting notch; The limiting notch is provided on the base body, and the size of the limiting notch is adapted to the lead screw. The limiting notch is used to limit the lead screw to the outside in a radial direction.

[0007] As a further aspect of the present invention The limiting notch is U-shaped, and there are several sets of the limiting notch; Several sets of limiting recesses are respectively positioned on the side of the cross line connecting the base body, and the limiting recesses corresponding to each other in the same direction are used to synchronously limit the screw to the outside of the lead screw in the radial direction.

[0008] As a further aspect of the present invention, it also includes: The indexing bearing assembly has its outer ring positioned and assembled at the center of several sets of limiting recesses on the base body, and the transmission rod is connected to the inner ring of the indexing bearing assembly for transmission.

[0009] As a further aspect of the present invention The end of the transmission rod away from the limiting notch is set as the power input end, and the end of the transmission rod near the limiting notch is coaxially driven with the rubber cylinder.

[0010] As a further aspect of the present invention The transmission rod is equipped with a length adjustment mechanism, which includes a fixed rod and a telescopic rod. The telescopic rod can move and be fixed along the axial direction of the fixed rod.

[0011] An electrically driven screwing device includes the aforementioned screwing structure based on a lead screw and nut.

[0012] As a further aspect of the present invention, it also includes: Electric drive mechanism; The end of the transmission rod away from the limiting notch is configured as an external hexagonal end, and the transmission rod is connected to the electric drive mechanism via its external hexagonal end.

[0013] As a further aspect of the present invention The electric drive mechanism is equipped with a control switch, which can achieve stepless speed regulation and adjust the rotation speed of the transmission rod according to actual needs to adapt to the tightening or unscrewing requirements of different nuts.

[0014] An electrically driven screwing method according to the aforementioned electrically driven screwing device specifically includes the following steps: When it is necessary to rotate the nut along the screw to one side, the limiting notch of the mounting base is radially limited to the screw, so that the rubber cylinder is close to the side of the nut facing away from the direction of rotation. The electric drive mechanism is started, and the electric drive mechanism drives the transmission rod and the rubber cylinder to rotate at high speed. The rubber cylinder drives the nut to rotate synchronously through friction, driving the nut to rotate along the screw to one side. When it is necessary to rotate the nut along the screw to the other side, adjust the radial limit position of the mounting base so that the rubber cylinder is close to the side of the nut facing away from the direction of rotation. Restart the electric drive mechanism and adjust its rotation direction. The electric drive mechanism drives the transmission rod and the rubber cylinder to further rotate the nut in the opposite direction, thereby driving the nut to rotate along the screw to the other side.

[0015] The present invention has the following beneficial effects: The device effectively adapts to the lead screw by using the mounting base as the overall structural foundation, and can also use the transmission rod to drive the nut b to rotate based on external power and the rubber cylinder. In addition, the operation stability of the transmission rod can be improved by the use of the indexing bearing assembly, so as to realize the rapid screwing in or out of the nut, reduce manpower consumption, improve operation efficiency, and enhance the practicality of the function. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0017] Figure 1 The screw-nut based screw-nut screwing structure provided in the embodiment of the present invention is shown in the overall isometric structural diagram corresponding to one side orientation.

[0018] Figure 2 The screw-nut based screw-nut screwing structure provided in the embodiment of the present invention is a schematic diagram of the overall isometric structure facing the other side.

[0019] Figure 3 The schematic diagram of the overall isometric structure of the electrically driven screw-nut based screw-nut screw-nut device provided in the embodiment of the present invention, corresponding to one side orientation.

[0020] Figure 4 The schematic diagram of the overall isometric structure of the electrically driven screw-nut based screw-nut screw-nut device provided in the embodiment of the present invention, corresponding to the other side of the structure.

[0021] Figure 5 This is a schematic diagram illustrating the application state of the electrically driven screw-nut based screw-nut screw-nut screw-nut device provided in an embodiment of the present invention.

[0022] The attached diagram lists the components represented by each number as follows: Assembly base 1: Base body 11, limiting notch 12; 2. Index bearing assembly; 3. Transmission rod body; 4. Rubber cylinder; 5. Electric drive mechanism; A. Lead screw; B. Nut. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0025] like Figures 1 to 2 As shown, this embodiment of the invention provides a screw-nut based screw-nut tightening structure, including an assembly base 1, a pivot bearing assembly 2, a transmission rod 3, and a rubber cylinder 4. The assembly base 1 serves as the foundation of the overall structure, effectively adapting to achieve stable guiding and limiting with the screw a. Simultaneously, the transmission rod 3, powered by external force, further coordinates with the rubber cylinder 4 to rotate the nut b. Furthermore, the pivot bearing assembly 2 enhances the operational stability of the transmission rod 3, enabling rapid screwing in or out of the nut b, reducing labor costs, improving operational efficiency, and enhancing functional practicality. Specific settings are as follows: Please refer to Figure 1 and Figure 2 The assembly base 1 includes a base body 11 and a limiting recess 12; wherein, the limiting recess 12 is U-shaped, and there are several sets of limiting recesses 12. The several sets of limiting recesses 12 are respectively positioned on the side of the cross line of the base body 11, and the size of the several sets of limiting recesses 12 is adapted to the lead screw a, so that the corresponding limiting recesses 12 in the same direction can be synchronously limited to the outside of the lead screw a radially, so that the structure can always maintain the displacement based on the orientation of the lead screw a, thereby ensuring the stability and accuracy of the drive nut b in and out operation.

[0026] In one optional implementation, the base body 11 may be made of stainless steel, but is not limited to stainless steel. Stainless steel has good rigidity and wear resistance, which can extend the service life of the device and is not easy to rust, making it suitable for various production environments. The inner wall of the limiting recess 12 is provided with a sliding surface, which can effectively reduce the axial friction between the limiting recess 12 and the lead screw b, thereby further improving the functional stability.

[0027] Please continue to refer to this. Figure 1 and Figure 2 The outer ring of the indexing bearing assembly 2 is positioned and assembled at the center of the base body 11 corresponding to a plurality of sets of limiting recesses 12. The transmission rod 3 is disposed through the indexing bearing assembly 2, and the transmission rod 3 is connected to the inner ring of the indexing bearing assembly 2 for transmission assembly. This is to effectively reduce the friction of the transmission rod 3 when it rotates through the indexing bearing assembly 2, so as to ensure that the transmission rod 3 rotates smoothly around its own axis, reduce power loss, improve the stability of transmission, and prevent the transmission rod 3 from deviating or jamming during rotation.

[0028] Specifically, the end of the transmission rod 3 away from the several sets of limiting recesses 12 is set as the power input end, and a rubber cylinder 4 is fixedly connected to the end of the transmission rod 3 near the several sets of limiting recesses 12. The rubber cylinder 4 is coaxially arranged with the transmission rod 3 so that the rubber cylinder 4 can rotate synchronously based on the transmission rod 3 and closely fit the side of the nut b for transmission. At the same time, the good elasticity and friction of the rubber cylinder 4 are utilized so that when the rubber cylinder 4 rotates, it can drive the nut b to rotate synchronously through friction, thereby realizing the rotation of the nut b along the axial direction of the screw a.

[0029] As a preferred embodiment, the transmission rod 3 and the rubber cylinder 4 are connected by a detachable fixed assembly, such as by a threaded connection or a snap-fit ​​connection. When the rubber cylinder 4 is worn or damaged, it can be easily replaced without replacing the entire transmission rod 3, thus reducing the cost of use. The length of the transmission rod 3 can be designed according to actual usage requirements, and its length range is set to 10~30cm to adapt to the needs of different length lead screws and different operating scenarios.

[0030] Please refer to Figure 3 and Figure 4 This invention also provides an electrically driven screwing device including the aforementioned screw-nut based screwing structure, for providing power via the electrically driven mechanism 5. The specific configuration is as follows: The end of the transmission rod 3 away from the several sets of limiting recesses 12 is set as an external hexagonal end, and the transmission rod 3 is connected to the electric drive mechanism 5 through its external hexagonal end. The electric drive mechanism 5 can be set as a handheld electric drill. The external hexagonal end of the transmission rod 3 and the output end of the electric drive mechanism 5 are adapted to be connected for transmission, so that the electric drive mechanism 5 can stably transmit power to the transmission rod 3, driving the transmission rod 3 and the rubber cylinder 4 to rotate stably.

[0031] As another preferred embodiment, the electric drive mechanism 5 can also be a small electric motor. The electric motor is equipped with a power module and a control switch to achieve stepless speed regulation. The rotation speed of the transmission rod 3 can be adjusted according to actual needs, thereby flexibly adapting to the tightening or unscrewing requirements of different nuts. For example, for a nut b with a high degree of tightening, the rotation speed can be reduced to increase the torque, while for an ordinary nut b, the rotation speed can be increased to improve operating efficiency, effectively improving functional adaptability.

[0032] As another preferred embodiment, the transmission rod 3 is equipped with a length adjustment mechanism, which includes a fixed rod and a telescopic rod. The telescopic rod can move and be fixed along the axial direction of the fixed rod, so as to adjust the overall length of the transmission rod 3 through the telescopic rod, further expanding the applicability of the device and making it more suitable for the operation scenarios of nuts b with different spacings.

[0033] The embodiments of the present invention form a complete transmission system through the coordinated cooperation of various components, which can quickly and efficiently complete the screw-in or screw-out operation of long screw nuts, significantly reducing labor costs and operational difficulty, while improving operational efficiency and stability; the overall device has a simple structure, low manufacturing cost, and convenient operation, and is suitable for various assembly scenarios of long screw nuts, with good practicality and promotional value.

[0034] Please refer to Figure 5 The present invention also provides an electrically driven screwing method based on the above-described electrically driven screwing device, which specifically includes the following steps: When it is necessary to rotate the nut b along the screw a to one side, the limiting notch 12 of the mounting base 1 is radially limited to the screw a, so that the rubber cylinder 4 is close to the side of the nut b facing away from the direction of rotation. The electric drive mechanism 5 is started, and the electric drive mechanism 5 drives the transmission rod 3 and the rubber cylinder 4 to rotate at high speed. The rubber cylinder 4 drives the nut b to rotate synchronously through friction, driving the nut b to rotate along the screw a to one side. When it is necessary to rotate the nut b along the screw a to the other side, adjust the radial limit position of the mounting base 1 so that the rubber cylinder 4 is close to the side of the nut b facing away from the direction of rotation. Then, restart the electric drive mechanism 5 and adjust its rotation direction. The electric drive mechanism 5 drives the transmission rod 3 and the rubber cylinder 4 to further rotate the nut b in the opposite direction, thereby driving the nut b to rotate along the screw a to the other side.

[0035] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A screw-and-nut based screw mechanism, characterized in that, include: Assembly base; The transmission rod is interchangeably mounted on the mounting base, and the transmission rod is capable of receiving rotational kinetic energy. A rubber cylinder is fixedly attached to one end of the transmission rod. The transmission rod can drive the rubber cylinder to rotate, and the rubber cylinder can engage with the nut to drive the nut to rotate.

2. The screw-and-nut based screw-and-nut screw mechanism according to claim 1, characterized in that, The assembly base includes a base body and a limiting notch; The limiting notch is provided on the base body, and the size of the limiting notch is adapted to the lead screw. The limiting notch is used to limit the lead screw to the outside in a radial direction.

3. The screw-nut based screw-and-nut screw mechanism according to claim 2, characterized in that, The limiting notch is U-shaped, and there are several sets of the limiting notch; Several sets of limiting recesses are respectively positioned on the side of the cross line connecting the base body, and the limiting recesses corresponding to each other in the same direction are used to synchronously limit the screw to the outside of the lead screw in the radial direction.

4. The screw-nut based screw-nut screw mechanism according to claim 3, characterized in that, Also includes: The indexing bearing assembly has its outer ring positioned and assembled at the center of several sets of limiting recesses on the base body, and the transmission rod is connected to the inner ring of the indexing bearing assembly for transmission.

5. The screw-nut based screw-nut screw mechanism according to claim 3, characterized in that, The end of the transmission rod away from the limiting notch is set as the power input end, and the end of the transmission rod near the limiting notch is coaxially driven with the rubber cylinder.

6. The screw-nut based screw-and-nut screw mechanism according to claim 1, characterized in that, The transmission rod is equipped with a length adjustment mechanism, which includes a fixed rod and a telescopic rod. The telescopic rod can move and be fixed along the axial direction of the fixed rod.

7. An electrically driven screwing device, characterized in that, Including the screw-nut based screw-and-nut screw mechanism as described in any one of claims 1-5.

8. The electrically driven turning device according to claim 7, characterized in that, Also includes: Electric drive mechanism; The end of the transmission rod away from the limiting notch is configured as an external hexagonal end, and the transmission rod is connected to the electric drive mechanism via its external hexagonal end.

9. The electrically driven turning device according to claim 8, characterized in that, The electric drive mechanism is equipped with a control switch, which can achieve stepless speed regulation and adjust the rotation speed of the transmission rod according to actual needs to adapt to the tightening or unscrewing requirements of different nuts.

10. An electrically driven screwing method for an electrically driven screwing device according to claim 8 or 9, specifically comprising the following steps: When it is necessary to rotate the nut along the screw to one side, the limiting notch of the mounting base is radially limited to the screw, so that the rubber cylinder is close to the side of the nut facing away from the direction of rotation. The electric drive mechanism is started, and the electric drive mechanism drives the transmission rod and the rubber cylinder to rotate at high speed. The rubber cylinder drives the nut to rotate synchronously through friction, driving the nut to rotate along the screw to one side. When it is necessary to rotate the nut along the screw to the other side, adjust the radial limit position of the mounting base so that the rubber cylinder is close to the side of the nut facing away from the direction of rotation. Restart the electric drive mechanism and adjust its rotation direction. The electric drive mechanism drives the transmission rod and the rubber cylinder to further rotate the nut in the opposite direction, thereby driving the nut to rotate along the screw to the other side.

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