Screw locking detection device
By using an electric screwdriver and vision inspection elements in the screw fastening detection device, the problems of difficulty, misjudgment, and omission in manual screw fastening inspection have been solved, achieving high-precision screw inspection and ensuring product quality.
Patent Information
- Application Number
- CN202521834763.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-27
AI Technical Summary
In existing technologies, manually inspecting whether the anti-loose adhesive on screws has fallen off or is missing is difficult, prone to misjudgment or omission, and affects product quality.
A screw fastening detection device is adopted, which includes an electric screwdriver, a transparent sleeve, and a vision inspection element. The vision inspection element takes pictures of the screw through the transparent sleeve to determine whether the screw is abnormal, reducing the difficulty of manual judgment and improving the detection accuracy.
It reduces the difficulty of manual judgment, reduces misjudgment and omission, improves detection accuracy, prevents screw abnormalities from affecting product quality, and reduces the labor intensity of personnel.
Smart Images
Figure CN224682076U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of assembly equipment, and specifically relates to a screw fastening detection device. Background Technology
[0002] Currently, some products require assembly using screws with adhesive backing. This assembly process employs automated electric screwdrivers to fasten the screws with the adhesive backing. However, before fastening the screws, the adhesive backing may have come off or is missing. In such cases, attaching the missing or detached adhesive backing to the product will affect product quality.
[0003] The relevant technology uses manual visual inspection to determine whether the anti-loose adhesive on the screw has fallen off or is missing. Considering the small size of the screw, this not only increases the difficulty of manual judgment, but also makes it easy to make misjudgments or omissions, which will affect the quality of subsequent products. Utility Model Content
[0004] The purpose of this application is to provide a screw fastening detection device that can solve the problems of difficulty, easy misjudgment or omission in the manual detection of whether the anti-loose adhesive has fallen off or is missing.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows:
[0006] This application provides a screw fastening detection device, including: an electric screwdriver, a transparent sleeve, and a vision detection element;
[0007] The electric screwdriver has an electric screwdriver body and a screwdriver bit disposed at one end of the electric screwdriver body;
[0008] The transparent sleeve is connected to one end of the electric screwdriver body and is fitted on the outside of the screwdriver bit, with the end of the transparent sleeve facing away from the electric screwdriver body protruding from the screwdriver bit to form a receiving space.
[0009] The visual inspection element is correspondingly disposed with the transparent sleeve and is used to photograph the screw located in the receiving space through the transparent sleeve.
[0010] In this embodiment, a visual inspection element can photograph the screw inside the transparent sleeve through the transparent sleeve to facilitate subsequent judgment of whether the screw is abnormal (e.g., whether the adhesive has fallen off or is missing). Compared with manual inspection, this embodiment can reduce the difficulty of manual judgment, and is less prone to misjudgment or omission, thereby improving the detection accuracy and preventing abnormal screws from causing adverse effects on the product. In addition, it can also reduce the labor intensity of personnel. Attached Figure Description
[0011] Figure 1This is a schematic diagram of the screw fastening detection device and the screw disclosed in the embodiments of this application;
[0012] Figure 2 This is a first schematic diagram of the electric screwdriver and sleeve disclosed in the embodiments of this application;
[0013] Figure 3 This is a second schematic diagram of the electric screwdriver and sleeve disclosed in the embodiments of this application.
[0014] Explanation of reference numerals in the attached figures:
[0015] 01-Screw fastening detection device;
[0016] 10-Electric screwdriver; 11-Electric screwdriver body; 111-Mounting hole; 112-Fasting hole; 12-Screwdriver bit;
[0017] 20 - Transparent sleeve; M - Accommodation space;
[0018] 30 - Visual inspection elements;
[0019] 40 - Control elements;
[0020] 50 - Transfer mechanism;
[0021] 60 - Alarm element;
[0022] 02-Screw. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0025] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.
[0026] refer to Figures 1 to 3 This application discloses a screw fastening detection device 01 for fastening screws 02 to a product to achieve product assembly. The screws 02 can be screws with anti-loosening adhesive, or other types of screws, which are not specifically limited here. The disclosed screw fastening detection device 01 includes an electric screwdriver 10, a transparent sleeve 20, and a vision inspection element 30.
[0027] The electric screwdriver 10 is a power mechanism for tightening the screw 02, which can drive the screw 02 to rotate and tighten it onto the product. In some embodiments, the electric screwdriver 10 may have an electric screwdriver body 11 and a screwdriver bit 12 disposed at one end of the electric screwdriver body 11. The electric screwdriver body 11 may include components such as a drive motor and a reducer. The drive motor can drive the screwdriver bit 12 to rotate through the reducer, thereby driving the screw 02 to rotate and tightening the screw 02. It should be noted that the specific structure and working principle of the electric screwdriver body 11 and the screwdriver bit 12 can be referred to in related technologies, and are not specifically limited here.
[0028] A transparent sleeve 20 is connected to one end of the electric screwdriver body 11 and is fitted over the outside of the screwdriver bit 12. The end of the transparent sleeve 20 facing away from the electric screwdriver body 11 protrudes from the screwdriver bit 12 to form a receiving space M. Based on this, the screw 02 can be placed in the receiving space M and connected to the screwdriver bit 12, so that the screw 02 can be rotated by the screwdriver bit 12 and locked to the product. At the same time, the inner wall of the transparent sleeve 20 can also limit the screw 02 to a certain extent to prevent the screw 02 from tilting and ensure that the screw 02 can be smoothly locked to the product.
[0029] A vision inspection element 30 is correspondingly provided with a transparent sleeve 20, used to photograph the screw 02 located within the receiving space M through the transparent sleeve 20. Thus, the condition of the screw 02 can be determined by the photographing results of the vision inspection element 30. Specifically, the photographing results of the vision inspection element 30 can determine whether the screw 02 is accurately located below the screwdriver bit 12; when the screw 02 is a screw with adhesive backing, the photographing results of the vision inspection element 30 can also determine whether the adhesive backing is intact, preventing the adhesive backing from falling off or being missing, which could affect product quality.
[0030] Optionally, the vision inspection element 30 can be an industrial camera, or other components, without specific limitations here.
[0031] In this embodiment, the visual inspection element 30 can take pictures of the screw 02 inside the transparent sleeve 20 through the transparent sleeve 20, so as to make subsequent judgments on whether the screw 02 is abnormal, such as whether the adhesive has fallen off. Compared with the manual inspection method, this embodiment can reduce the difficulty of manual judgment, and is less likely to misjudgment or omission, thereby improving the detection accuracy and preventing the abnormality of the screw 02 from causing adverse effects on the product. In addition, it can also reduce the labor intensity of personnel.
[0032] In some embodiments, the transparent sleeve 20 is detachably connected to one end of the electric screwdriver body 11. In this way, when the transparent sleeve 20 is worn after long-term use or its transparency is poor, a new transparent sleeve 20 can be easily replaced to ensure that the transparent sleeve 20 will not interfere with the fastening and detection of the screw 02.
[0033] refer to Figure 2 and Figure 3 The end face of one end of the electric screwdriver body 11 may be provided with a mounting hole 111, and one end of the transparent sleeve 20 may be inserted into the mounting hole 111. In this way, a stable connection between the transparent sleeve 20 and the electric screwdriver body 11 can be ensured, and the transparent sleeve 20 can be easily disassembled and replaced.
[0034] Considering that a bit 12 is provided at one end of the electric screwdriver body 11, and the bit 12 needs to extend out of the electric screwdriver body 11 and be exposed, the end face of one end of the electric screwdriver body 11 can be provided with a through hole for the bit 12 to pass through; and since the transparent sleeve 20 is sleeved on the outside of the bit 12, the mounting hole 111 for installing the transparent sleeve 20 is located outside the through hole to prevent interference between the installation of the transparent sleeve 20 and the bit 12.
[0035] Optionally, one end of the transparent sleeve 20 may be fitted with an interference fit or a transition fit between the wall of the mounting hole 111 and the wall of the mounting hole 111, so that the outer wall of the transparent sleeve 20 and the wall of the mounting hole 111 can generate a sufficiently large frictional resistance, thereby preventing the transparent sleeve 20 from falling out of the mounting hole 111 and ensuring the installation stability of the transparent sleeve 20.
[0036] Of course, in other embodiments, the transparent sleeve 20 and the electric screwdriver body 11 can also be connected by a snap-fit or other mating method.
[0037] refer to Figure 1 and Figure 2In some embodiments, a fastening hole 112 may be provided on the side wall of one end of the electric screwdriver body 11, which communicates with the mounting hole 111. Correspondingly, the screw fastening detection device 01 may also include a fastener (not shown in the figure), which is installed in the fastening hole 112, and the end of the fastener abuts against the outer wall of the transparent sleeve 20. Based on this, under the abutting action of the fastener, the transparent sleeve 20 can be effectively prevented from sliding out of the mounting hole 111, further ensuring the installation stability of the transparent sleeve 20.
[0038] Optionally, the fastener can be a fastening screw, and the fastening hole 112 can be a threaded hole. The fastening screw can be tightened to press against the outer wall of the transparent sleeve 20.
[0039] Furthermore, the outer wall of the transparent sleeve 20 may be provided with a through hole or a blind hole, and correspondingly, the end of the fastener may be provided with a pointed tip. In this way, when the fastener is pressed against the outer wall of the transparent sleeve 20, the pointed tip can be located in the through hole or blind hole, thereby further improving the fastening effect.
[0040] In some embodiments, the entire area of the sidewall of the transparent sleeve 20 can be transparent, that is, the transparent sleeve 20 is a transparent tube as a whole. In this way, the visual detection element 30 can capture the entire interior of the transparent sleeve 20, including the bit 12, the screw 02, and the engagement of the bit 12 and the screw 02. This can ensure the normal rotation of the bit 12 and the normal locking of the screw 02. At the same time, it can also detect whether the anti-loosening adhesive of the screw 02 has fallen off or is missing.
[0041] In other embodiments, the sidewall of the transparent sleeve 20 can be transparent in the area corresponding to the receiving space M. In this way, the visual inspection element 30 can capture the condition of a local area inside the transparent sleeve 20, thereby ensuring the proper fastening of the screw 02 and detecting whether the anti-loose adhesive of the screw 02 has fallen off or is missing.
[0042] In some more specific embodiments, the transparent sleeve 20 can be a transparent PC sleeve or a glass tube. Of course, it can also be a sleeve made of other materials, as long as it meets the strength and transparency requirements. The specific form is not limited.
[0043] To achieve automatic control of the screw fastening detection device 01, the screw fastening detection device 01 may further include a control element 40, such as... Figure 1 As shown, the control element 40 is electrically connected to the vision detection element 30 and the electric screwdriver 10, respectively. Based on this, the vision detection element 30 can take pictures of the screw 02 and send the pictures to the control element 40. After analysis and processing by the control element 40, the electric screwdriver 10 is controlled accordingly.
[0044] It should be noted that the control element 40 may have a preset initial image of the screw 02. After the vision inspection device sends the captured image of the screw 02 to the control element 40, the control element 40 compares the captured image with the initial image to determine whether the screw 02 is normal. Furthermore, the image comparison and analysis process of the control element 40 can refer to existing technologies and will not be elaborated here.
[0045] For example, the control element 40 has a preset initial image of a normal screw 02 with anti-loose adhesive. When there is a difference between the anti-loose adhesive in the captured image and the initial image and the anti-loose adhesive of the normal screw 02, it is determined that the anti-loose adhesive has fallen off or is missing. In this case, the control element 40 can control the electric screwdriver 10 to stop working to prevent the abnormal screw 02 from being fastened to the product and affecting the product quality.
[0046] Continue to refer to Figure 1 In some embodiments, the screw fastening detection device 01 may further include a transfer mechanism 50, which has a transfer end to which the electric screwdriver 10 is connected, and the transfer mechanism 50 is electrically connected to the control element 40. Based on this configuration, the transfer mechanism 50 can be controlled by the control element 40 to move the electric screwdriver 10 accordingly via the transfer end.
[0047] Optionally, the transfer mechanism 50 may include a translation component, which can drive the electric screwdriver 10 to move horizontally; the transfer mechanism 50 may also include a lifting component, which can drive the electric screwdriver 10 to move vertically. Of course, the transfer mechanism 50 may include both a translation component and a lifting component to drive the electric screwdriver 10 to achieve multi-degree-of-freedom movement.
[0048] For example, under the control of the control element 40, the electric screwdriver 10 can be moved to the feeding station by the transfer mechanism 50 to pick up the material. After picking up the material, the electric screwdriver 10 and the screw 02 can be moved to the inspection station by the transfer mechanism 50. The condition of the screw 02 can be detected by the vision inspection device. When the screw 02 is abnormal, the control element 40 controls the transfer mechanism 50 to continue moving to throw the abnormal screw 02 to the screw recycling station and move it back to the feeding station to pick up the material again. When the screw 02 is detected to be normal, the transfer mechanism 50 moves the electric screwdriver 10 and the screw 02 to the position where the screw 02 needs to be installed on the product. The screw 02 is locked onto the product by rotating the electric screwdriver 10.
[0049] Continue to refer to Figure 1In some embodiments, the screw fastening detection device 01 may further include an alarm element 60, which is electrically connected to the control element 40. Thus, the control element 40 can control the alarm element 60. For example, after comparing and analyzing a preset image of the screw 02 with an image captured by a visual detection device, if the control element 40 determines that the screw 02 is abnormal, it can send a control command to the alarm element 60, causing the alarm element 60 to emit a tightening signal, such as sound or photoelectric information, to alert the operator that the screw 02 is abnormal.
[0050] In this embodiment, the working principle of the screw fastening detection device 01 is as follows:
[0051] Before the electric screwdriver 10 attaches the screw 02, the visual inspection element 30 takes a picture of the screw 02 and feeds the picture back to the control element 40. After the control element 40 compares and analyzes the image, it can determine whether the adhesive on the surface of the screw 02 has fallen off or is missing. If it is determined that the adhesive has fallen off or is missing, the control element 40 will send a control command to the alarm element 60 to make the alarm element 60 issue an alarm message. At the same time, the control element 40 also sends a control command to the transfer mechanism 50 to drive the electric screwdriver 10 to move, thereby discarding the screws with fallen off or missing adhesive. If it is determined that there is no abnormality in the adhesive on the surface of the screw 02, the control element 40 will control the electric screwdriver 10 to attach the screw 02 normally.
[0052] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A screw fastening detection device, characterized in that, include: Electric screwdriver (10), transparent sleeve (20), and vision inspection element (30); The electric screwdriver (10) has an electric screwdriver body (11) and a screwdriver bit (12) disposed at one end of the electric screwdriver body (11); The transparent sleeve (20) is connected to one end of the electric screwdriver body (11) and sleeved on the outside of the screwdriver bit (12), and the end of the transparent sleeve (20) away from the electric screwdriver body (11) protrudes from the screwdriver bit (12) to form a receiving space (M). The visual detection element (30) is correspondingly disposed with the transparent sleeve (20) and is used to photograph the screw (02) located in the receiving space (M) through the transparent sleeve (20).
2. The screw fastening detection device according to claim 1, characterized in that, The transparent sleeve (20) is detachably connected to one end of the electric screwdriver body (11).
3. The screw fastening detection device according to claim 2, characterized in that, The electric screwdriver body (11) has a mounting hole (111) on one end face, and one end of the transparent sleeve (20) is inserted into the mounting hole (111).
4. The screw fastening detection device according to claim 3, characterized in that, The side wall at one end of the electric screwdriver body (11) is provided with a fastening hole (112), which is connected to the mounting hole (111); The screw fastening detection device (01) also includes a fastener, which is installed in the fastening hole (112) and the end of the fastener abuts against the outer wall of the transparent sleeve (20).
5. The screw fastening detection device according to claim 1, characterized in that, The entire area of the sidewall of the transparent sleeve (20) is made transparent; Alternatively, the sidewall of the transparent sleeve (20) may be transparent in the area corresponding to the receiving space (M).
6. The screw fastening detection device according to claim 5, characterized in that, The transparent sleeve (20) is a transparent PC tube or a glass tube.
7. The screw fastening detection device according to any one of claims 1 to 6, characterized in that, The screw fastening detection device (01) further includes a control element (40), which is electrically connected to the vision detection element (30) and the electric screwdriver (10).
8. The screw fastening detection device according to claim 7, characterized in that, The screw fastening detection device (01) further includes a transfer mechanism (50), which has a movable end, and the electric screwdriver (10) is connected to the transfer end; The transfer mechanism (50) is electrically connected to the control element (40).
9. The screw fastening detection device according to claim 7, characterized in that, The screw fastening detection device (01) further includes an alarm element (60), which is electrically connected to the control element (40).
10. The screw fastening detection device according to claim 1, characterized in that, The visual inspection element (30) is an industrial camera.