Screw dismounting mechanism for automatic production line
By using a coaxially arranged drive shaft, connecting shaft, sleeve, and compression spring design, the problems of low screw disassembly efficiency and insufficient adaptability on automated production lines are solved, achieving efficient and reliable screw disassembly and reducing costs.
Patent Information
- Application Number
- CN202423006922.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-06
AI Technical Summary
On automated production lines, traditional manual screw removal is inefficient, costly, and prone to missing screws. In contrast, the lack of compatibility with automated tools can lead to disassembly failures or equipment overload.
The design features a coaxial arrangement of drive shaft, connecting shaft, sleeve, and compression spring. The sleeve can move axially, and with the help of limiting components and compression spring, it achieves flexible contact, resulting in better adaptability and suitability for screw removal in different locations.
It enables efficient and reliable screw removal, reduces labor, time and equipment costs, and improves disassembly accuracy and efficiency.
Smart Images

Figure CN223617141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw removal tools, and in particular to a screw removal mechanism for an automated production line. Background Technology
[0002] In automated production lines, screws are used to temporarily fix some workpieces during processing so that the workpieces can be processed through various processes as they move along the production line. After processing is completed, these screws need to be removed so that the workpieces can be taken off the line.
[0003] For applications with numerous fixed parts, especially in mass production, the number of screws that need to be removed is also large. Traditional manual screw removal is labor-intensive, inefficient, and costly, and is prone to missing screws. While some automated removal tools have different requirements for the alignment accuracy and torque force needed for screws in different parts, their adaptability is insufficient, which can easily lead to removal failure or equipment overload. Utility Model Content
[0004] The purpose of this utility model is to provide an automated production line screw removal mechanism to solve the problems in the background art and achieve reliable screw removal.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automated production line screw removal mechanism includes a drive shaft, a connecting shaft, a sleeve, and a compression spring arranged coaxially, wherein:
[0007] The drive shaft is used to provide or transmit rotational power;
[0008] The first end of the connecting shaft is fixedly connected to the drive shaft, the second end of the connecting shaft is inserted into the first end of the sleeve, and the second end of the connecting shaft is provided with a limiting member to prevent the connecting shaft from separating from the sleeve;
[0009] The sleeve can only move axially relative to the connecting shaft, and the second end of the sleeve is provided with a cavity that matches the head of the screw to be removed.
[0010] The compression spring is sleeved on the connecting shaft, and the compression spring is clamped between the drive shaft and the first end of the sleeve.
[0011] As an alternative, the limiting component is a limiting bolt, which is installed at the second end of the connecting shaft. The inner wall of the sleeve is provided with a protrusion, which limits the bolt head of the limiting bolt.
[0012] As an alternative, a shoulder is provided on the connecting shaft, the diameter of the shoulder to the second end of the connecting shaft is smaller than the diameter of the shoulder to the first end of the connecting shaft, and the shoulder limits the first end of the sleeve.
[0013] As an optional solution, the connecting shaft and the sleeve are connected by a spline fit.
[0014] As an alternative, the cavity is in the shape of a dodecagonal prism, and the opening of the cavity is chamfered.
[0015] As an alternative, the sleeve is a magnet.
[0016] The beneficial effects of this utility model are:
[0017] The screw removal mechanism of this automated production line realizes the action of loosening the screws to be removed. The axially movable sleeve and compression spring design achieves flexible contact between the sleeve and the screws to be removed, which has better adaptability, makes it easier to align and transmit torque, and effectively reduces the labor, time and equipment costs in the production process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the screw removal mechanism of the automated production line provided in the first state according to an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the screw removal mechanism of the automated production line provided in the second state according to an embodiment of the present invention.
[0020] In the attached image:
[0021] 1. Drive shaft; 2. Connecting shaft; 21. Shoulder; 3. Sleeve; 31. Cavity; 32. Protrusion; 4. Compression spring; 5. Limiting component. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 utility model.
[0026] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.
[0027] Please see Figure 1 and Figure 2 As shown, this embodiment provides an automated production line screw removal mechanism, including a drive shaft 1, a connecting shaft 2, a sleeve 3, and a compression spring 4 arranged coaxially, wherein:
[0028] Drive shaft 1 is used to provide or transmit rotational power;
[0029] The first end of the connecting shaft 2 is fixedly connected to the drive shaft 1, the second end of the connecting shaft 2 is inserted into the first end of the sleeve 3, and the second end of the connecting shaft 2 is provided with a limiting member 5 to prevent the connecting shaft 2 from separating from the sleeve 3;
[0030] The sleeve 3 can only move axially relative to the connecting shaft 2, and the second end of the sleeve 3 is provided with a cavity 31 that matches the head of the screw to be removed;
[0031] The compression spring 4 is sleeved on the connecting shaft 2, and the compression spring 4 is clamped between the drive shaft 1 and the first end of the sleeve 3.
[0032] This enables the loosening of the screws to be removed, and the axially movable sleeve 3 and spring 4 design achieve flexible contact between the sleeve 3 and the screws to be removed, resulting in better adaptability, easier alignment and torque transmission, and effectively reducing labor, time and equipment costs in the production process.
[0033] The drive shaft 1 is connected to other drive components to achieve output torque. With the help of a servo motor, the sleeve 3 can be automatically controlled to rotate. With the help of a handle, the sleeve 3 can be manually rotated. The compression spring 4 is preferably a stainless steel spring, which has the functions of contact buffering and providing clamping force to ensure reliable torque transmission.
[0034] Optionally, the limiting member 5 is a limiting bolt, which is installed at the second end of the connecting shaft 2. The inner wall of the sleeve 3 is provided with a protrusion 32, which limits the bolt head of the limiting bolt, thereby preventing the second end of the connecting shaft 2 from coming out.
[0035] Optionally, a shoulder 21 is provided on the connecting shaft 2. The diameter of the shoulder 21 to the second end of the connecting shaft 2 is smaller than the diameter of the shoulder 21 to the first end of the connecting shaft 2. The shoulder 21 limits the first end of the sleeve 3, allowing the sleeve 3 to move axially relative to the connecting shaft 2 within a limited range. Figure 1 and Figure 2 This corresponds to the states of the two travel limits.
[0036] Optionally, the connecting shaft 2 and the sleeve 3 are connected by a spline fit, which not only enables the sleeve 3 to move axially, but also ensures torque transmission.
[0037] Optionally, the cavity 31 is dodecagonal in shape, and the opening of the cavity 31 is chamfered. The sleeve 3 with the inner dodecagonal shape can be aligned with the screw to be removed with only a small adjustment of the angle, and the chamfer helps the head of the screw to enter the sleeve 3.
[0038] Optionally, the sleeve 3 is a magnet, which can easily attract and hold the unscrewed screw.
[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A screw-removing mechanism for an automated production line, characterized in that, It includes a drive shaft (1), a connecting shaft (2), a sleeve (3), and a compression spring (4) arranged coaxially, wherein: The drive shaft (1) is used to provide or transmit rotational power; The first end of the connecting shaft (2) is fixedly connected to the drive shaft (1), the second end of the connecting shaft (2) is inserted into the first end of the sleeve (3), and the second end of the connecting shaft (2) is provided with a limiting member (5) to prevent the connecting shaft (2) from separating from the sleeve (3); The sleeve (3) can only move axially relative to the connecting shaft (2), and the second end of the sleeve (3) is provided with a cavity (31) that is adapted to the head of the screw to be removed; The compression spring (4) is sleeved on the connecting shaft (2), and the compression spring (4) is sandwiched between the drive shaft (1) and the first end of the sleeve (3).
2. The automated production line screw removal mechanism according to claim 1, characterized in that, The limiting member (5) is a limiting bolt, which is installed at the second end of the connecting shaft (2). The inner wall of the sleeve (3) is provided with a protrusion (32), which limits the bolt head of the limiting bolt.
3. The automated production line screw removal mechanism according to claim 1, characterized in that, The connecting shaft (2) is provided with a shoulder (21), the diameter of the shoulder (21) to the second end of the connecting shaft (2) is smaller than the diameter of the shoulder (21) to the first end of the connecting shaft (2), and the shoulder (21) limits the first end of the sleeve (3).
4. The automated production line screw removal mechanism according to claim 1, characterized in that, The connecting shaft (2) and the sleeve (3) are connected by a spline fit.
5. The automated production line screw removal mechanism according to claim 1, characterized in that, The cavity (31) is dodecagonal prism, and the opening of the cavity (31) is chamfered.
6. The screw removal mechanism for an automated production line according to claim 1, characterized in that, The sleeve (3) is a magnet.