Fastener neglected loading prevention testing fixture

Abstract

The utility model relates to the technical field of part detection, in particular to a fastener neglected loading prevention detection tool, which comprises a support, the support comprises a fixed end, a detection end and a connecting end which are fixedly connected, the detection end is elastically and slidably connected with a detection piece, the connecting end is provided with a proximity sensor, and the proximity sensor is connected with the detection piece. A sensing head of the proximity sensor is arranged towards the detection piece; the fixing end, the detecting end and the connecting end are arranged on the support, the support can be matched with a production tool through the fixing end, the detecting piece is in elastic sliding connection with the detecting end, the proximity sensor is arranged towards the detecting piece, and a signal prompt can be sent out when the fastener is installed correctly; the device effectively prevents neglected installation of the fastener in the part production process, prevents the part with the neglected installation of the fastener from flowing into the next process to cause repair or scrapping, is simple in structure and low in input cost, and can effectively reduce the manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of parts inspection technology, and in particular to a fastener anti-leakage inspection tool. Background Technology

[0002] In the field of mechanical manufacturing, fasteners are one of the most commonly used components in production, serving functions such as connection and fixation. For example, in the automotive manufacturing industry, various types of fasteners are used to connect parts, such as projection weld nuts, rivet nuts, and stud welding. If fasteners are missed during the production process, defective products may flow into the vehicle manufacturing site, potentially causing the next process to be unable to assemble them, requiring rework or even scrapping. This leads to increased production costs and decreased production efficiency. In extreme cases, parts with missed fastener processing may even enter the market along with the finished vehicle, posing a significant safety hazard.

[0003] Especially in complex mechanical manufacturing processes, the cost and efficiency losses caused by missing fasteners are increasing, a problem of great concern in the industry. Conventional methods involve manual visual inspection at each stage, but due to the instability of human intervention, omissions are common, and the improvement effect is not significant. With the increasing maturity of visual inspection technology, the installation status of fasteners can be detected more accurately, thereby preventing the outflow of defective products.

[0004] However, visual inspection technology requires a large investment. When dealing with complex parts and components with multiple processes, it is difficult to set up visual inspection systems in every process. Often, inspection is only carried out at the final stage or on the finished product. If a missing part is found, it can only be reworked or scrapped, which cannot effectively reduce costs and the results are not ideal.

[0005] How to prevent the omission of fasteners during the parts production process and effectively reduce the frequency of rework and scrap has become a research direction for those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a fastener anti-missing inspection tool that can be matched with production tooling, has a simple structure, low investment cost, and can effectively prevent the missing installation of fasteners during the production of parts.

[0007] To solve the above-mentioned technical problems, the embodiments of this utility model provide a technical solution as follows:

[0008] A fastener leak-proof inspection tool includes a bracket, the bracket including a fixed end, a detection end and a connecting end fixedly connected, the detection end is elastically slidably connected to a detection element, and the connecting end is provided with a proximity sensor, the sensing head of the proximity sensor being positioned towards the detection element.

[0009] Furthermore, the detection end is provided with a through cavity, and a stop ring is provided at one end of the cavity. The detection element is sleeved in the cavity. The detection element includes a first column and a second column arranged coaxially. The diameter of the second column is smaller than that of the first column. An elastic component is provided between the cavity and the detection element. One end of the elastic component abuts against the stop ring, and the other end abuts against the end face of the first column.

[0010] Furthermore, the first column portion is exposed outside the cavity, and a detection end cap is fixedly provided at the end of the first column that is exposed outside the cavity.

[0011] Furthermore, the second column is disposed through the stop ring, and a sensing end cap is fixedly provided at one end of the second column exposed outside the cavity, and the sensing head of the proximity sensor is disposed corresponding to the sensing end cap.

[0012] Furthermore, the sensing end cap is axially fixed to the end of the second column by fasteners, and the diameter of the sensing end cap is larger than the diameter of the second column.

[0013] Furthermore, the connecting end is provided with a through hole, and a protective sleeve is fitted over the through hole, with the proximity sensor nested inside the protective sleeve.

[0014] Furthermore, the protective sleeve and the connecting end are detachably fixedly connected, and the protective sleeve can move axially along the through hole to adjust the relative position of the proximity sensor and the detection element.

[0015] Furthermore, the proximity sensor is electrically connected to an indicator light, which emits a light signal when the detection element approaches or comes into contact with the sensing head.

[0016] The fastener anti-missing fixture provided by this utility model, compared with the prior art, has a fixed end, a detection end and a connecting end set by a bracket. The fixed end can be matched with the production tooling. The detection part is elastically slidably connected to the detection end and a proximity sensor is set towards the detection part. It can issue a signal prompt when the fastener is installed correctly, effectively preventing the missing fasteners during the production process and avoiding the flow of parts with missing fasteners into the next process, causing rework or scrap. The structure is simple, the investment cost is low and it can effectively reduce the manufacturing cost. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0018] Figure 1 This is a three-dimensional structural diagram of a fastener anti-leakage inspection tool according to an embodiment of this utility model;

[0019] Figure 2 This is a three-dimensional front view of a fastener anti-leakage inspection tool according to an embodiment of this utility model;

[0020] Figure 3 yes Figure 2 Sectional view of AA;

[0021] Figure 4 yes Figure 3 A schematic diagram of the structure when the elastic component is in the elastic release state.

[0022] Explanation of reference numerals in the attached drawings: 1. Bracket; 11. Fixed end; 12. Detection end; 121. Cavity; 122. Stop ring; 13. Connecting end; 2. Proximity sensor; 21. Sensing head; 3. Protective sleeve; 4. Detection component; 41. First column; 42. Second column; 43. Detection end cap; 44. Sensing end cap; 5. Elastic component; 6. Screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0024] like Figure 1-2As shown, one embodiment of this utility model relates to a fastener anti-leakage inspection tool, including a bracket 1. The bracket 1 includes a fixed end 11, a detection end 12, and a connecting end 13, which are fixedly connected. The fixed end 11 is used to connect the fastener anti-leakage inspection tool to the part production tooling. The fixed end 11 and the production tooling can be fixed by welding. Preferably, the fixed end 11 is provided with multiple through holes, and bolts are used to pass through the through holes to form a detachable fixed connection with the production tooling, which is beneficial for the maintenance and replacement of the fastener anti-leakage inspection tool. The detection end 12 is elastically slidably connected to a detection element 4, and the connecting end 13 is provided with a proximity sensor 2. The sensing head 21 of the proximity sensor 2 is arranged facing the detection element 4. When the detection element 4 moves relative to the detection end 12, one end of the detection element 4 approaches the sensing head 21, thereby triggering the proximity sensor 2 to issue a prompt signal. In use, one end of the detection element 4 faces the fastener installation position of the part, and the other end is set correspondingly to the proximity sensor 2, maintaining a certain distance, and is in an untriggered state. If the part is missing, the detection element 4 is not subjected to external force, and the detection element 4 will not move, so the proximity sensor 2 is not triggered. At this time, the operator can promptly find and check the fastener installation status at the corresponding position. If the fastener is installed correctly, one end of the detection element 4 is squeezed by the fastener and elastically slides relative to the detection end 12. The other end of the detection element 4 moves towards the sensing head 21 and approaches or abuts the sensing head 21, triggering the sensor to issue a signal to remind the operator that the fastener is installed correctly and that work can continue. By elastically sliding the detection component 4 to the detection end 12 and setting the proximity sensor 2 corresponding to one end of the detection component 4, the installation status of fasteners can be detected in real time during the part production process, and the problem of missing fasteners can be detected in time. The overall structure is simple and the investment cost is low. It can be effectively matched with the part production tooling and applied to various processes of part production. It can effectively prevent the missing fasteners during the part production process, avoid parts with missing fasteners from flowing into the next process and causing rework or scrap, and reduce manufacturing costs.

[0025] like Figure 3-4As shown, in one embodiment, a fastener leak-proof inspection tool is provided, including a bracket 1. The bracket 1 includes a fixed end 11, a detection end 12, and a connecting end 13 that are fixedly connected. The detection end 12 has a through cavity 121, and a stop ring 122 is provided at one end of the cavity 121. The detection element 4 is sleeved in the cavity 121. The detection element 4 includes a first column 41 and a second column 42 that are coaxially arranged. The diameter of the second column 42 is smaller than that of the first column 41. An elastic member 5 is provided between the cavity 121 and the detection element 4. One end of the elastic member 5 abuts against the stop ring 122, and the other end abuts against the end face of the first column 41. In an exemplary example, the first column 41 is partially exposed outside the cavity 121, and a detection end cap 43 is fixedly provided at the end of the first column 41 exposed outside the cavity 121; the second column 42 is disposed through the stop ring 122, and a sensing end cap 44 is fixedly provided at the end of the second column 42 exposed outside the cavity 121; the sensing head 21 of the proximity sensor 2 is correspondingly disposed with the sensing end cap 44; preferably, the detection end cap 43, the first column 41, and the second column 42 are integrally disposed variable-diameter cylinders, and the diameters of the detection end cap 43, the first column 41, and the second column 42 decrease sequentially; the sensing end cap 44 is axially fixedly disposed at the end of the second column 42 by screws 6, and the diameter of the sensing end cap 44 is larger than the diameter of the second column 42. Figure 4 As shown, at this time, the elastic component 5 is in an elastically released state, and the sensing end cap 44 is close to the end of the detection end 12, that is, the sensing end cap 44 is away from the sensing head 21 of the proximity sensor 2, and the proximity sensor 2 is in an untriggered state. When the fastener anti-leakage fixture provided by this utility model is assembled into the part production tooling, the detection end cap 43 corresponds to the fastener installation position. If the fastener is installed correctly, the installed fastener will squeeze the detection end cap 43, causing the elastic component 5 to elastically compress and deform between the stop ring 122 and the first column 41. As a result, the detection end cap 43 moves closer to the end of the detection end 12, and the sensing end cap 44 moves away from the end of the detection end 12, that is, the sensing end cap 44 moves toward the sensing head 21 and approaches or abuts the sensing head 21, thereby triggering the proximity sensor 2 to issue a signal prompt. Preferably, the proximity sensor 2 is electrically connected to an indicator light, which emits a light signal when the detection element 4 approaches or comes into contact with the sensing head 21; in an exemplary example, the proximity sensor 2 is electrically connected to the part production process start switch to enable automated control of the part production process.

[0026] One embodiment relates to a fastener leak-proof inspection fixture, comprising a bracket 1, the bracket 1 including a fixed end 11, a detection end 12, and a connecting end 13 fixedly connected; wherein, the connecting end 13 has a through hole, the through hole is fitted with a protective sleeve 3, and the proximity sensor 2 is nested within the protective sleeve 3; preferably, the protective sleeve 3 is made of copper. In an exemplary example, the protective sleeve 3 and the connecting end 13 are detachably fixedly connected, and a fastening screw is provided through the wall of the through hole. By tightening the fastening screw, one end of the fastening screw abuts against the protective sleeve 3, thereby achieving a fixed connection between the protective sleeve 3 and the connecting end 13; by loosening the fastening screw, the end of the fastening screw is disengaged from the protective sleeve 3, and the protective sleeve 3 can move axially along the through hole, adjusting the relative position of the proximity sensor 2 and the detection element 4. By adjusting the position of the proximity sensor 2, the distance between the detection head and the end of the detection element 4 can be adjusted, improving the sensitivity and accuracy of the fastener leak-proof inspection fixture in the fastener inspection process.

[0027] This utility model provides a fastener anti-missing-installation inspection tool, which consists of a fixed end, a detection end, and a connecting end set in a bracket. The fixed end can be matched with production tooling. The detection part is elastically slidably connected to the detection end, and a proximity sensor is positioned towards the detection part. It can issue a signal to indicate that the fastener is installed correctly, effectively preventing the omission of fasteners during the production process and avoiding parts with missing fasteners from flowing into the next process, causing rework or scrap. The structure is simple, the investment cost is low, and it can effectively reduce manufacturing costs. The protective sleeve is detachably fixed to the connecting end, which allows adjustment of the distance between the detection head and the end of the detection part, improving the sensitivity and accuracy of the fastener anti-missing-installation inspection tool in the fastener inspection process, and also facilitating the replacement of the consumable proximity sensor.

[0028] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A fastener leak detection apparatus, comprising: The application relates to a bracket (1) comprising a fixed end (11), a detection end (12) and a connecting end (13), wherein the detection end (12) is elastically connected with a detection piece (4), and the connecting end (13) is provided with a proximity sensor (2), and the sensing head (21) of the proximity sensor (2) is arranged towards the detection piece (4).

2. The fastener leak inspection tool of claim 1, wherein, The detection end (12) is provided with a through cavity (121), one end of the cavity (121) is provided with a stop ring (122), the detection piece (4) is sleeved in the cavity (121), the detection piece (4) comprises coaxially arranged first and second cylinders (41) and (42), the diameter of the second cylinder (42) is smaller than that of the first cylinder (41), an elastic component (5) is arranged between the cavity (121) and the detection piece (4), one end of the elastic component (5) abuts against the stop ring (122), and the other end abuts against the end face of the first cylinder (41).

3. The fastener leak inspection tool of claim 2, wherein, The first cylinder (41) is partially exposed outside the cavity (121), and the end of the first cylinder (41) exposed outside the cavity (121) is fixedly provided with a detection end cover (43).

4. The fastener leak detection apparatus of claim 3, wherein, The second cylinder (42) penetrates through the stop ring (122) and is fixedly provided with an induction end cover (44) at the end exposed outside the cavity (121), and the sensing head (21) of the proximity sensor (2) is arranged correspondingly to the induction end cover (44).

5. The fastener leak detection apparatus of claim 4, wherein, The induction end cover (44) is fixedly arranged on the end of the second cylinder (42) in the axial direction through a screw (6), and the diameter of the induction end cover (44) is larger than that of the second cylinder (42).

6. The fastener leak inspection tool of claim 1, wherein, The connecting end (13) is provided with a through hole, the through hole is sleeved with a protective sleeve (3), and the proximity sensor (2) is nested in the protective sleeve (3).

7. The fastener leak detection apparatus of claim 6, wherein, The protective sleeve (3) is detachably fixedly connected with the connecting end (13), the protective sleeve (3) can move in the axial direction of the through hole, and the relative position of the proximity sensor (2) and the detection piece (4) can be adjusted.

8. A fastener leak inspection tool according to any one of claims 1-7, wherein, The proximity sensor (2) is electrically connected with a signal lamp, when the detection piece (4) approaches or abuts against the sensing head (21), the signal lamp emits a light signal.

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