Screw fastening device

Abstract

The utility model discloses a screw fastening device which comprises an annular box and a screw body, a fixing frame is arranged on the annular box, a fastening motor is arranged on the fixing frame through an air cylinder, a fastening assembly is installed on an output shaft of the fastening motor, a screw rod is installed on the annular box, an installation frame is installed on the screw rod in a threaded mode, and the screw body is installed on the installation frame. A limiting wheel set is arranged on the mounting frame, the mounting frame is connected with an annular box through a limiting mechanism, a rotating ring is arranged in the annular box through a stabilizing mechanism, a rotating motor is arranged in the annular box, the rotating motor is connected with the rotating ring through a rotating mechanism, and the rotating ring is connected with a screw rod through a transmission mechanism. The rotating ring is driven by the rotating motor, then the screw rod is driven to enable the mounting frame to move accurately, the fastening motor is pushed by the air cylinder, the fastening assembly is specially designed, the whole process is coordinated, errors caused by manual operation are reduced, and the screw fastening precision and consistency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw fastening, in particular to a screw fastening device. Background Art

[0002] In the field of modern industrial production and mechanical assembly, screw tightening is a common and critical operation. Traditional screw tightening methods often rely on manual operation, which is inefficient and difficult to ensure accuracy. With the development of technology, some electric or pneumatic screw tightening tools have emerged, but these tools still have some problems during use.

[0003] In some occasions where high screw tightening accuracy and stability are required, existing tightening devices lack effective stabilizing components, which may cause problems such as screw deviation and uneven tightening force during the tightening process, thereby affecting the quality and performance of the product. In order to address this problem, a screw tightening device is proposed herein. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a screw fastening device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A screw fastening device comprises an annular box and a screw body, wherein a fixing frame is provided on the annular box, a fastening motor is provided on the fixing frame via a cylinder, a fastening assembly is installed on the output shaft of the fastening motor, a screw is installed on the annular box, a mounting frame is threadedly installed on the screw, a limiting wheel set is provided on the mounting frame, the mounting frame is connected to the annular box via a limiting mechanism, a rotating ring is provided in the annular box via a stabilizing mechanism, a rotating motor is provided in the annular box, the rotating motor is connected to the rotating ring via a rotating mechanism, and the rotating ring is connected to the screw via a transmission mechanism.

[0007] Preferably, the limiting mechanism comprises a limiting rod installed on the annular box, and the mounting frame is provided with a limiting channel corresponding to the limiting rod.

[0008] Preferably, the stabilizing mechanism comprises a stabilizing ring installed at the bottom of the rotating ring, and an annular stabilizing groove is provided on the inner bottom wall of the annular box.

[0009] Preferably, the rotating mechanism comprises a driving gear mounted on the output shaft of the rotating motor, and the rotating ring is provided with a side gear ring meshing with the driving gear.

[0010] Preferably, the transmission mechanism comprises a transmission gear mounted on the screw, and the rotating ring is provided with an upper gear ring meshing with the transmission gear.

[0011] Preferably, the vertical cross-sectional views of the limiting rod and the limiting channel are both T-shaped, and the vertical cross-sectional views of the stabilizing ring and the annular stabilizing groove are both L-shaped.

[0012] Beneficial effects of the utility model:

[0013] 1. The rotating motor drives the rotating ring, which in turn drives the screw to move the mounting frame accurately. The cylinder drives the tightening motor and the specially designed tightening components. The whole process works together to reduce the error of manual operation and improve the accuracy and consistency of screw tightening.

[0014] 2. The smooth movement of the mounting frame, the accurate docking of the fastening components and the screw body, and the efficient cooperation between the various components greatly improve the speed of screw fastening. Compared with the traditional manual fastening method, more screw fastening work can be completed in a short time. Taking large-scale mechanical production as an example, it can significantly shorten the production cycle, improve production efficiency, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a screw fastening device proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0017] Figure 3 It is a schematic diagram of the structure of components such as a rotating ring;

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at B.

[0019] In the figure: 1 annular box, 2 fixing frame, 3 cylinder, 4 fastening motor, 5 fastening assembly, 6 screw body, 7 mounting frame, 8 limiting wheel set, 9 screw rod, 10 limiting rod, 11 rotating ring, 12 stabilizing ring, 13 upper gear ring, 14 transmission gear, 15 rotating motor, 16 driving gear, 17 side gear ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4, a screw fastening device, the core components of which include an annular box 1 and a screw body 6. A fixing frame 2 is arranged on the annular box 1, and a fastening motor 4 is arranged on the fixing frame 2 through a cylinder 3. A special fastening component 5 is installed on the output shaft of the fastening motor 4, which can provide strong and stable power support for the fastening operation of the screw body 6. The fastening component 5 is in a cross shape, corresponding to the shape of the hole on the screw body 6.

[0022] The annular box 1 is also cleverly installed with a screw rod 9. The mounting frame 7 is installed on this screw rod 9 through a thread. A limiting wheel set 8 is specially provided on the mounting frame 7. The vertical cross-section of the limiting wheel set 8 is in the shape of an I, and the mounting frame 7 is also tightly connected to the annular box 1 through a limiting mechanism. Specifically, this limiting mechanism includes a limiting rod 10 installed on the annular box 1, and a limiting channel corresponding to the limiting rod 10 is provided on the mounting frame 7. The vertical cross-sections of the limiting rod 10 and the limiting channel are both T-shaped. This unique T-shaped design can effectively prevent the mounting frame 7 from shaking or deflecting during movement, thereby ensuring the stability and accuracy of the operation of the entire device.

[0023] Inside the annular box 1, a rotating ring 11 is provided through a stabilizing mechanism. The stabilizing mechanism includes a stabilizing ring 12 installed at the bottom of the rotating ring 11, and a matching annular stabilizing groove is provided on the inner bottom wall of the annular box 1. The vertical cross-section of the stabilizing ring 12 and the annular stabilizing groove are both L-shaped. This L-shaped design greatly enhances the stability of the rotating ring 11 during rotation and reduces possible jitter and deviation.

[0024] A rotating motor 15 is also provided in the annular box 1, which is connected to the rotating ring 11 through a rotating mechanism. The rotating mechanism includes a driving gear 16 mounted on the output shaft of the rotating motor 15, and a side gear ring 17 perfectly meshed with the driving gear 16 is provided on the rotating ring 11.

[0025] The rotating ring 11 is also connected to the screw rod 9 through a transmission mechanism. The transmission mechanism includes a transmission gear 14 mounted on the screw rod 9, and an upper gear ring 13 precisely meshed with the transmission gear 14 is provided on the rotating ring 11.

[0026] When the utility model is used, when the screw body 6 needs to be tightened, the rotating motor 15 is started. The driving gear 16 on the output shaft of the rotating motor 15 rotates, and since the driving gear 16 is engaged with the side gear ring 17 on the rotating ring 11, the rotating ring 11 is driven to rotate. The upper gear ring 13 on the rotating ring 11 is engaged with the transmission gear 14 on the screw 9, so that the screw 9 rotates. Under the action of the thread, the mounting frame 7 installed on the screw 9 moves along the axial direction of the screw 9. The limiting wheel group 8 on the mounting frame 7 and the limiting mechanism (limiting rod 10 and limiting channel) connected to the annular box 1 ensure the stability and accuracy of the movement of the mounting frame 7, and no shaking or deviation will occur. The four limiting wheel groups 8 realize the clamping and positioning operation of the screw body 6.

[0027] At the same time, the cylinder 3 moves, pushing the tightening motor 4 downward, so that the cross-shaped tightening component 5 on the output shaft of the tightening motor 4 corresponds to and contacts the hole on the screw body 6. The tightening motor 4 is started, and its output shaft drives the tightening component 5 to rotate, providing strong and stable power for the tightening operation of the screw body 6, thereby realizing the tightening of the screw.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screw fastening device, comprising an annular box (1) and a screw body (6), characterized in that: The annular box (1) is provided with a fixing frame (2), a fastening motor (4) is provided on the fixing frame (2) via a cylinder (3), a fastening assembly (5) is installed on the output shaft of the fastening motor (4), a screw rod (9) is installed on the annular box (1), a mounting frame (7) is threadedly installed on the screw rod (9), a limiting wheel group (8) is provided on the mounting frame (7), the mounting frame (7) is connected to the annular box (1) via a limiting mechanism, a rotating ring (11) is provided in the annular box (1) via a stabilizing mechanism, a rotating motor (15) is provided in the annular box (1), the rotating motor (15) is connected to the rotating ring (11) via a rotating mechanism, and the rotating ring (11) is connected to the screw rod (9) via a transmission mechanism.

2. A screw fastening device according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (10) mounted on the annular box (1), and the mounting frame (7) is provided with a limiting channel corresponding to the limiting rod (10).

3. A screw fastening device according to claim 2, characterized in that: The stabilizing mechanism comprises a stabilizing ring (12) installed at the bottom of a rotating ring (11), and an annular stabilizing groove is provided on the inner bottom wall of the annular box (1).

4. A screw fastening device according to claim 3, characterized in that: The rotating mechanism comprises a driving gear (16) mounted on the output shaft of a rotating motor (15), and the rotating ring (11) is provided with a side gear ring (17) meshing with the driving gear (16).

5. A screw fastening device according to claim 4, characterized in that: The transmission mechanism comprises a transmission gear (14) mounted on a screw rod (9), and the rotating ring (11) is provided with an upper gear ring (13) meshing with the transmission gear (14).

6. A screw fastening device according to claim 5, characterized in that: The vertical cross-sectional views of the limiting rod (10) and the limiting channel are both T-shaped, and the vertical cross-sectional views of the stabilizing ring (12) and the annular stabilizing groove are both L-shaped.

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