Screw righting mechanism

Abstract

The utility model provides a screw righting mechanism which comprises a righting seat and a righting block, a screw head mounting cavity is formed in the bottom of the righting seat, and the screw head mounting cavity penetrates through the bottom of the righting seat; the at least two centralizing blocks are arranged in the centralizing seat, each centralizing block is provided with a centralizing position, and the centralizing positions of the plurality of centralizing blocks are encircled to form a space for accommodating a screw to be centralized; the back of the centralizing block is connected with the centralizing base through an elastic piece, the bottom of the centralizing block is hinged to the centralizing base, and the centralizing block is limited through a limiting piece. According to the screw righting mechanism provided by the scheme, through combination of the righting base, the righting block, the elastic piece, the limiting piece and other components, effective righting of the screws is achieved, the screw righting mechanism can be used for righting the screws of different sizes, good compatibility is achieved, and the problems that in the prior art, the diversity of screw specifications is not fully considered, and the screw righting efficiency is high are solved. The applicability and the compatibility are poor in practical application.

Description

Technical Field

[0001] The present application belongs to the technical field of screw straightening, and relates to a straightening mechanical mechanism for straightening screws, and more particularly to a screw straightening mechanism. Background Art

[0002] In current automated tightening operations, a significant technical challenge is that the screws are often tilted or not precisely aligned with the screw holes in the initial stage. This condition directly hinders the effective contact between the automatic tightening mechanism and the screws, and even causes jamming and shutdown during the tightening process, seriously restricting the continuous operation capacity and overall efficiency of the production line.

[0003] In response to the above pain points, the patent application CN207858722U proposes a pre-guiding device for screwing tools. The device is designed with three core components: a base, a clamping mechanism, and a limiting mechanism. The base is designed as a hollow structure, which is convenient for direct installation at the designated screwing position. The clamping mechanism is built into the hollow part of the base and consists of two symmetrically arranged and uniformly shaped clamping claws. The two clamping claws are pulled by an elastic member to realize the positioning of the screw by the clamping mechanism.

[0004] However, although the device has shown certain advantages in the nail-tightening link of assembly operations, its functions still have certain limitations. Specifically, the design of using elastic parts to pull the two clamping jaws is powerless in the process of automatically unloading various types of screws, and its limitations significantly restrict the device's wide compatibility and efficient processing capabilities for screws of different sizes. This design fails to fully take into account the diversity of screw specifications, resulting in a significant reduction in its applicability for screws of varying sizes in practical applications, making it difficult to meet the needs of efficient and flexible automated production. In addition, it is not yet possible to accurately detect and determine the position of the screws, and the device is difficult to directly connect seamlessly with a high-level automatic tightening system, limiting its potential for application in a wider range of industrial scenarios. Therefore, it is necessary to develop a screw straightening mechanism that has good compatibility, can accurately position screws, and can efficiently coordinate the automatic tightening process. Utility Model Content

[0005] The technical problem to be solved by the present application is that the prior art fails to fully consider the diversity of screw specifications, resulting in poor applicability and compatibility for screws of varying sizes in practical applications.

[0006] In order to solve the above problems, the present application provides a screw straightening mechanism, which includes: a straightening seat, a straightening block, a screw head installation cavity is arranged at the bottom of the straightening seat, and the screw head installation cavity passes through the bottom of the straightening seat; at least two straightening blocks are arranged in the straightening seat, and the straightening block is provided with a straightening position, and the straightening positions of multiple straightening blocks surround to form a space for accommodating the screw to be straightened; the back of the straightening block is connected to the straightening seat through an elastic member, the bottom of the straightening block is hinged to the straightening seat, and the straightening block is limited by a limiting member.

[0007] The screw straightening mechanism provided in the above-mentioned scheme of the present application realizes effective straightening of the screw through a combination of components such as a straightening seat, a straightening block, an elastic part and a limiting part. The screw straightening mechanism can straighten screws of different sizes and has good compatibility, which solves the problem that the prior art fails to fully consider the diversity of screw specifications, resulting in poor applicability and compatibility in practical applications.

[0008] In order to detect whether the screw has entered the screw head installation cavity and reached the predetermined position, and determine the timing for the automatic tightening mechanism to tighten the screw, as an improvement of the above-mentioned screw straightening mechanism, the screw straightening mechanism also includes a proximity sensor arranged on one side of the screw head installation cavity.

[0009] In order to use the straightening block to effectively straighten the rod of the screw and improve the straightening efficiency, as an improvement of the straightening block in the above technical solution, the projection of the straightening position on the straightening block in the vertical direction is V-shaped, and the V-shaped opening of the straightening position points to the screw to be straightened.

[0010] In order to define the position of the elastic member firmly and reliably, as an improvement to the above-mentioned screw straightening mechanism, a mounting position for mounting the elastic member is provided in the middle of the other side of the straightening block opposite to the straightening position.

[0011] In order to reliably mount the elastic member on the straightening seat, as an improvement to the above-mentioned screw straightening mechanism, the elastic member is fixed to the straightening seat by an elastic member fixing member.

[0012] In order to ensure the reliability of the hinge connection between the straightening block and the straightening seat, as an improvement of the above-mentioned screw straightening mechanism, the straightening block is hinged to the straightening seat through a hinge pin.

[0013] In order to limit the rotation range of the straightening block, as an option of the above-mentioned screw straightening mechanism, a limiting member is connected to the lower part of the straightening block.

[0014] In practical applications, the screw straightening mechanism is installed on the mounting plate.

[0015] The technical effects of this application are:

[0016] 1. The screw straightening mechanism provided in the present application realizes effective straightening of the screw through a combination of components such as a straightening seat, a straightening block, an elastic member and a limiting member. The screw straightening mechanism can straighten screws of different sizes and has good compatibility, which solves the problem that the prior art fails to fully consider the diversity of screw specifications, resulting in poor applicability and compatibility in practical applications.

[0017] 2. The screw straightening mechanism of the present application also includes a proximity sensor arranged on one side of the screw head installation cavity. The proximity sensor can detect in real time whether the screw has entered the screw head installation cavity and reached the predetermined position. Once the proximity sensor detects that the screw is in place, it will send a signal to the control system. After receiving the signal, the control system will start the automatic tightening mechanism to tighten the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a screw straightening mechanism of the present application;

[0019] Figure 2 A cross-sectional view of a screw straightening mechanism of the present application;

[0020] Figure 3 This is a structural schematic diagram of a screw straightening mechanism of the present application when supporting a screw;

[0021] Figure 4 This is a schematic structural diagram of a straightening block in a screw straightening mechanism of the present application;

[0022] Figure 5 It is a distribution diagram of the screw straightening mechanism in a specific use process;

[0023] Explanation of the accompanying drawings: 1. Straightening seat; 11. Screw head mounting cavity; 2. Straightening block; 21. Straightening position; 22. Mounting position; 3. Elastic member; 4. Limiting member; 5. Proximity sensor; 6. Hinge pin; 7. Fixing member; 8. Mounting plate; 9. Screw to be straightened. DETAILED DESCRIPTION

[0024] 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.

[0025] Figures 1 to 3 An embodiment of the screw straightening mechanism provided by the present application is illustrated. Figures 1 to 3The illustrated screw straightening mechanism includes: a straightening seat 1 and a straightening block 2. A screw head mounting cavity 11 is provided at the bottom of the straightening seat 1, and the screw head mounting cavity 11 passes through the bottom of the straightening seat 1; at least two straightening blocks 2 are arranged in the straightening seat 1, and the straightening blocks 2 are provided with straightening positions 21, and the straightening positions 21 of multiple straightening blocks 2 surround to form a space for accommodating the screw 9 to be straightened; the back of the straightening block 2 is connected to the straightening seat 1 through an elastic member 3, the bottom of the straightening block 2 is hinged to the straightening seat 1, and the straightening block 2 is limited by a limiting member 4.

[0026] In this embodiment, the straightening seat 1 is a support platform for the components of the screw straightening mechanism. The screw head installation cavity 11 is used for preliminary positioning of the screw head. The screw head installation cavity 11 passes through the bottom of the straightening seat 1, and the through-opening is used to pass a screwdriver. The straightening block 2 is inside the straightening seat 1. There are at least two straightening blocks 2 in the straightening seat 1. In a specific embodiment, the number of straightening blocks can be adjusted according to actual needs to increase the stability and effect of straightening. The screw straightening mechanism provided in the embodiment of the present application has two straightening blocks 2. Each straightening block 2 is provided with a straightening position 21, which is the area where the straightening block 2 contacts the screw. The back of the straightening block 2 is connected to the straightening seat 1 through an elastic member 3. This connection method enables the straightening block to move and reset flexibly when subjected to external force. The elastic member 3 can generally be selected as a spring. At the same time, the bottom of the straightening block 2 is connected to the straightening seat 1 by a hinge to allow the straightening block to rotate. In order to prevent the straightening block from excessively rotating and leaving the working position during the straightening process, a limiting member 4 is provided to limit the straightening block.

[0027] In this embodiment, when the screw 9 enters the space to accommodate the screw 9 to be straightened from the top of the screw straightening mechanism, the head of the screw 9 first contacts the straightening position 21 of the straightening block 2. When the head of the screw 9 presses the straightening position 21 of the straightening block 2, the elastic member 3 contracts under the pressure of the head of the screw 9. When the head of the screw 9 leaves the straightening block 2 and enters the screw head installation cavity 11, the straightening block 2 is reset under the action of the elastic member 3, and the straightening position 21 contacts the rod of the screw 9. Since the straightening block 2 is subjected to the elastic force of the elastic member 3 and the limiting action of the limiting member 4, they will adaptively adjust the angle and gradually straighten the screw to a vertical state. When the screw is completely straightened, the subsequent tightening operation can be carried out.

[0028] Figures 1 to 3 The screw straightening mechanism shown in the figure achieves effective straightening of the screw through a combination of components such as a straightening seat, a straightening block, an elastic part and a limiting part. The screw straightening mechanism can straighten screws of different sizes and has good compatibility, which solves the problem that the existing technology fails to fully consider the diversity of screw specifications, resulting in poor applicability and compatibility in practical applications.

[0029] Reference Figure 1 to Figure 3The illustrated screw straightening mechanism also includes a proximity sensor 5 disposed on one side of the screw head installation cavity 11. The proximity sensor 5 can detect in real time whether the screw has entered the screw head installation cavity 11 and reached a predetermined position. Once the proximity sensor 5 detects that the screw is in place, it sends a signal to the control system, and after receiving the signal, the control system starts the automatic tightening mechanism to tighten the screw.

[0030] Reference Figure 4 The straightening block 2 of the screw straightening mechanism is shown in the figure, and the projection of the straightening position 21 on the straightening block 2 in the vertical direction is V-shaped, and the V-shaped opening of the straightening position 21 points to the screw to be straightened 9. The straightening position 21 of the V-shaped structure has two inclined surfaces, which can form two contact points with the screw rod, so that one straightening block 2 can provide straightening force in two directions, and two straightening blocks 2 can provide straightening force in four directions, which helps to straighten the screw to a vertical state more stably and effectively.

[0031] exist Figure 1 to Figure 3 In the illustrated screw straightening mechanism, a mounting position 22 for mounting the elastic member 3 is provided in the middle of the other side of the straightening block 2 opposite to the straightening position 21. The mounting position 22 provides a fixing point for the elastic member 3, ensuring that the elastic member 3 can be firmly mounted on the straightening block 2 and maintain a stable elastic force during operation. The mounting position 22 is also responsible for effectively transmitting the elastic force of the elastic member 3 to the straightening block 2. When the screw contacts the straightening position 21 and generates thrust, the elastic member 3 is compressed and generates elastic force, which is transmitted to the straightening block 2 through the mounting position 22, so that it can rotate around the hinge point and adjust its position. The specific setting method of the mounting position 22 can be selected as a groove or a protrusion, or can be selected as a threaded connection, a snap connection, etc.

[0032] exist Figure 1 to Figure 3 In the illustrated screw straightening mechanism, in a preferred embodiment, the elastic member 3 is fixed to the straightening seat 1 by a fixing member 7. The main function of the fixing member 7 is to stably fix the elastic member 3 on the straightening seat 1 so that the elastic member 3 can maintain its position when compressed or stretched. The installation method of the elastic member fixing member 7 is set as a threaded connection, and a threaded hole is set on the straightening seat 1, and the elastic member fixing member 7 is fixed at a specified position by a threaded connection. The elastic member fixing member 7 can also be fixed to the straightening seat 1 by a groove or a protrusion, and the elastic member fixing member 7 can also be fixed to the straightening seat 1 by a mechanical fixing method such as a pin, a riveting, etc.

[0033] The straightening block 2 is hinged to the straightening seat 1 through a hinge pin 6. The hinged connection between the straightening block 2 and the straightening seat 1 can be realized by respectively providing corresponding hinge holes or hinge grooves on the straightening block 2 and the straightening seat 1 and inserting the hinge pin 6 therein. Both ends of the hinge pin 6 can be fixed to the straightening seat 1 by threaded connection, welding or other methods to ensure that it will not loosen or fall off during operation.

[0034] The limiting member 4 is connected to the lower part of the straightening block 2, which can limit the maximum rotation angle of the straightening block 2 during the straightening process, helping to ensure that the straightening block 2 does not rotate excessively when the straightening screw is tightened, thereby maintaining its stability.

[0035] In such Figure 5 In the illustrated application scenario of a screw straightening mechanism, the screw straightening mechanism is installed on the mounting plate 8. In a specific application scenario, multiple sets of screw straightening mechanisms can be installed together on the tooling plate 8 for combined use to achieve straightening and positioning of multiple screws 9, and in conjunction with the automatic tightening process, the accuracy and speed of screw assembly can be greatly accelerated, thereby improving work efficiency.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screw straightening mechanism, characterized in that: include: A straightening seat (1), wherein a screw head mounting cavity (11) is arranged at the bottom of the straightening seat (1), and the screw head mounting cavity (11) passes through the bottom of the straightening seat (1); At least two straightening blocks (2) are arranged in the straightening seat (1), the straightening blocks (2) are provided with straightening positions (21), and the straightening positions (21) of the plurality of straightening blocks (2) surround and form a space for accommodating the screws (9) to be straightened; The back of the straightening block (2) is connected to the straightening seat (1) via an elastic member (3), the bottom of the straightening block (2) is hinged to the straightening seat (1), and the straightening block (2) is limited by a limiting member (4).

2. The screw straightening mechanism according to claim 1, characterized in that: The screw straightening mechanism further comprises a proximity sensor (5) arranged on one side of the screw head mounting cavity (11).

3. The screw straightening mechanism according to claim 1, characterized in that: The projection of the righting position (21) on the righting block (2) in the vertical direction is V-shaped, and the V-shaped opening of the righting position (21) points to the screw (9) to be righted.

4. The screw straightening mechanism according to claim 1, characterized in that: A mounting position (22) for mounting an elastic member (3) is provided in the middle of the other side of the straightening block (2) opposite to the straightening position (21).

5. The screw straightening mechanism according to claim 1, characterized in that: The elastic member (3) is fixed to the straightening seat (1) via an elastic member fixing member (7).

6. The screw straightening mechanism according to claim 1, characterized in that: The straightening block (2) is hingedly connected to the straightening seat (1) via a hinge pin (6).

7. The screw straightening mechanism according to claim 1, characterized in that: The limiting member (4) is connected to the lower part of the straightening block (2).

8. The screw straightening mechanism according to claim 1, characterized in that: The screw straightening mechanism is mounted on a mounting plate (8).

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