CN219911429U - Locating pin with detect function - Google Patents
Locating pin with detect function Download PDFInfo
- Publication number
- CN219911429U CN219911429U CN202321716605.1U CN202321716605U CN219911429U CN 219911429 U CN219911429 U CN 219911429U CN 202321716605 U CN202321716605 U CN 202321716605U CN 219911429 U CN219911429 U CN 219911429U
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- Prior art keywords
- locating pin
- locating
- pin body
- fiber
- grating sensor
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- 238000001514 detection method Methods 0.000 claims abstract description 46
- 239000000835 fiber Substances 0.000 claims abstract description 42
- 239000013307 optical fiber Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 238000003466 welding Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 101000579647 Penaeus vannamei Penaeidin-2a Proteins 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a locating pin with a detection function, which comprises: the locating pin comprises a locating pin body, wherein a channel is formed in the locating pin body along the axial direction of the locating pin body, an optical fiber emitting port is formed in the outer side wall of the upper portion of the locating pin body, an optical fiber inlet is formed in the bottom of the locating pin body, and a locating device is detachably connected to the optical fiber inlet; one end of the fiber grating sensor enters the channel through the fiber inlet and is positioned at the fiber transmitting port, the other end of the fiber grating sensor extends out of the positioning pin body and is connected with fiber demodulation equipment, and the fiber grating sensor is positioned at the fiber inlet and is positioned through the positioning device. According to the utility model, the structure of the locating pin is improved, so that the locating pin has a locating function and a leak-proof detection function, and two procedures of leak detection and locating welding are simplified into one procedure; when the nut is subjected to leak detection, the nut is simple to operate, is not limited by an operation space, and can also improve the working efficiency.
Description
Technical Field
The utility model relates to the field of automobile part detection. More particularly, the present utility model relates to a locating pin with a detection function.
Background
Nowadays, along with the development of society and the improvement of living standard of people, the use of automobiles is more and more common, so that the production and manufacturing quantity of automobile parts is increased, nuts are welded on the parts after the automobile parts are machined in the process of machining and manufacturing the automobile parts, so that subsequent part assembly operation is facilitated, after the nuts are welded on the automobile parts, leak detection is needed to be carried out on the welding positions of the nuts, whether the assembling positions of the nuts on the automobile parts are neglected or not is judged, defective products are avoided, qualified automobile parts are still needed to be placed on the tools after the leak detection of the nuts is finished, and the assembly is formed by welding after the positioning pins on the tools are positioned, that is, the leak detection of the nuts and the assembly formed by positioning welding of the nuts are needed to be divided into two procedures to be completed, and the procedures are complicated.
In addition, in the prior art, when the nut assembly position is subjected to leak detection, the leak detection is mostly performed in a manual observation mode or a detector places a leak detection device on a nut of an automobile part through a clamp, and the information of the nut is sensed by an inductor on the leak detection device and fed back to an alarm mechanism for leak detection; the clamp and the leak detection device have complex structures, the required space is larger, and the leak detection device can not be applied under the condition that the space position is limited by adopting the leak detection device.
Disclosure of Invention
The utility model also aims to provide a locating pin with a detection function, wherein in the manufacturing process of the automobile part, the conventional locating pin on the tool is replaced by the locating pin, the nut is subjected to leak detection while the automobile part is subjected to the locating welding through the tool, and the two processes of leak detection and locating welding are simplified into one process; when the nut is subjected to leak detection, the nut is simple to operate and is not limited by an operation space, and a plurality of automobile parts can be subjected to leak detection at the same time, so that the working efficiency can be improved.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a positioning pin having a detecting function, comprising:
the locating pin comprises a locating pin body, wherein the locating pin body is of a step-type structure, a channel is formed in the locating pin body along the axial direction of the locating pin body, an optical fiber emitting port communicated with the channel is formed in the outer side wall of the upper portion of the locating pin body, an optical fiber inlet communicated with the channel is formed in the bottom of the locating pin body, and a locating device is detachably connected to the optical fiber inlet;
one end of the fiber grating sensor enters the channel through the fiber inlet and is positioned at the fiber transmitting port, the other end of the fiber grating sensor extends out of the positioning pin body and is connected with fiber demodulation equipment, and the fiber grating sensor is positioned at the fiber inlet and is positioned through the positioning device.
Preferably, the positioning device comprises two limiting blocks, any limiting block is of a semi-arc structure, the intrados of the two limiting blocks are oppositely arranged to form an inner hole together, and the fiber bragg grating sensor is located in the inner hole.
Preferably, the inner cambered surface of any limiting block is adhered with an arc elastic connecting piece.
Preferably, the two optical fiber emitting ports are arranged and are axially symmetrically arranged along the center of the positioning pin body.
Preferably, a positioning pen is arranged at one end of the fiber bragg grating sensor, which is positioned in the channel, a positioning groove is formed in the middle of the inner top surface of the positioning pin body, and the positioning pen is matched with the positioning groove.
Preferably, the locating pin body is made of 20CrMoV material.
The utility model at least comprises the following beneficial effects: according to the utility model, the structure of the conventional locating pin is improved, so that the locating pin has a detection function, the locating pin on the tool is replaced by the locating pin with the detection function, the nut is subjected to leak detection while the automobile part is positioned by the tool, and two processes of leak detection and fixed-position welding are simplified into one process; when the nut is subjected to leak detection, the nut is simple to operate and is not limited by an operation space, and a plurality of automobile parts can be subjected to leak detection at the same time, so that the working efficiency can be improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic cross-sectional view of a dowel of the present utility model;
FIG. 2 is a schematic view of a positioning device according to the present utility model;
description of the specification reference numerals:
1. the optical fiber grating sensor comprises a locating pin body, 101, an optical fiber emitting port, 102, a channel, 2, a locating pen, 3, a limiting block, 301, an inner hole 4 and an optical fiber grating sensor.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that, in the description of the present utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1-2, the present utility model provides a positioning pin with a detection function, comprising:
the locating pin comprises a locating pin body 1, wherein the locating pin body 1 is of a step-type structure, a channel 102 is formed in the locating pin body 1 along the axial direction of the locating pin body, an optical fiber emitting port 101 communicated with the channel 102 is formed in the outer side wall of the upper portion of the locating pin body 1, an optical fiber inlet communicated with the channel 102 is formed in the bottom of the locating pin body 1, and a locating device is detachably connected to the optical fiber inlet;
one end of the fiber grating sensor 4 enters the channel 102 through the fiber inlet and is positioned at the fiber emitting port 101, the other end of the fiber grating sensor 4 extends out of the locating pin body 1 to be connected with fiber demodulation equipment, and the fiber grating sensor 4 is positioned at the fiber inlet and is positioned through a locating device.
In the technical scheme, in order to solve the problems that the nut leakage detection and the positioning welding assembly need to be completed in two working procedures in the automobile part machining and manufacturing process and the working procedures are complicated, the utility model provides the positioning pin with the detection function, the positioning pin on the tool is replaced by the positioning pin with the detection function, and the nut is subjected to leakage detection while the automobile part is positioned by the tool, so that the working procedures are simplified; the utility model provides a locating pin body 1, wherein a channel 102 is arranged in the locating pin body 1, an optical fiber emitting port 101 is arranged at the upper part, an optical fiber inlet is arranged at the bottom, an optical fiber grating sensor 4 enters the channel 102 through the optical fiber inlet and is located at the optical fiber emitting port 101 and then is located on the locating pin body 1 through a locating device, the optical fiber grating sensor 4 is connected with optical fiber demodulation equipment, and the optical fiber demodulation equipment is connected with an industrial control processor through a signal wire for detecting the leakage of a nut, and the concrete steps are as follows: respectively placing a plurality of automobile parts on a plurality of locating pins of a tool to locate the automobile parts, wherein the position of a nut of any automobile part is positioned at an optical fiber transmitting port 101 of a corresponding locating pin, when leakage detection is carried out, if the nut is arranged on the locating pin, an optical wave signal emitted by a corresponding optical fiber grating sensor 4 can be shielded and reflected to the optical fiber grating sensor 4 by the nut, the optical fiber grating sensor 4 receives the reflected optical wave signal and then transmits the optical wave signal to optical fiber demodulation equipment, the optical fiber demodulation equipment converts the optical wave signal into an electric signal and then transmits the electric signal to an industrial control processor, and the industrial control processor receives the electric signal to indicate that the nut is arranged on the locating pin, namely the corresponding automobile part is continuously placed on the tool to wait for welding operation; if the light wave emitted by the fiber bragg grating sensor 4 is reflected by no shielding object, the industrial control processor does not receive an electric signal, the phenomenon that a nut is leaked on the locating pin is indicated, the automobile part is required to be taken down and the next automobile part is required to be subjected to leak detection, an assembly can be formed by welding until all the automobile parts on the tool are qualified in leak detection, a plurality of automobile parts forming the assembly are taken down after the welding is finished, and the next batch of automobile parts are subjected to leak detection and positioning welding according to the same method. When the nut is subjected to leak detection, the nut is simple to operate and is not limited by an operation space, and a plurality of automobile parts can be subjected to leak detection at the same time, so that the working efficiency can be improved.
In another technical scheme, the positioning device comprises two limiting blocks 3, any one limiting block 3 is of a semi-arc structure, inner cambered surfaces of the two limiting blocks 3 are oppositely arranged to form an inner hole 301 together, and the fiber bragg grating sensor 4 is located in the inner hole 301; the inner cambered surface of any limit block 3 is stuck with an arc elastic connecting piece.
In the technical scheme, two limiting blocks 3 are arranged at the optical fiber inlet, inner holes 301 formed by the two limiting blocks 3 are used for placing the optical fiber grating sensors 4, arc-shaped elastic connecting pieces are adhered to the inner cambered surfaces of the limiting blocks 3, on one hand, the optical fiber grating sensors 4 with different diameter sizes can be fixed in the elastic range of the elastic connecting pieces, and when the optical fiber grating sensors 4 with one diameter size are damaged, the optical fiber grating sensors 4 with the other diameter size can be flexibly selected according to the field resource scheduling condition, so that the construction period is prevented from being delayed; on the other hand, the elastic connecting piece can prevent the fiber bragg grating sensor 4 from being in hard contact with the limiting block 3 and damage the fiber bragg grating sensor 4.
In another embodiment, two optical fiber emitting ports 101 are provided and are axially symmetrically arranged along the center of the locating pin body 1. In the present technical solution, two optical fiber emitting ports 101 are provided, so that the detection accuracy of the fiber grating sensor 4 can be further improved.
In another technical scheme, a positioning pen 2 is arranged at one end of the fiber bragg grating sensor 4, which is positioned in the channel 102, a positioning groove is arranged in the middle of the inner top surface of the positioning pin body 1, and the positioning pen 2 is matched with the positioning groove.
In this technical scheme, set up the locating pen 2 in the one end of fiber bragg grating sensor 4, the middle part of locating pin body 1 interior top surface sets up the constant head tank with its looks adaptation for fiber bragg grating sensor 4 is located the middle part of passageway 102 after entering passageway 102, ensures that fiber bragg grating sensor 4 is located fiber bragg grating emission mouth 101 department, can not produce the slope and be sheltered from by other parts of locating pin body 1, thereby influences detection precision.
In another technical solution, the locating pin body 1 is made of 20CrMoV material. In the technical scheme, the locating pin body 1 is made of 20CrMoV materials, so that the structural rigidity and strength of the locating pin body can be improved.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. A locating pin with detect function, characterized by comprising:
the locating pin comprises a locating pin body, wherein the locating pin body is of a step-type structure, a channel is formed in the locating pin body along the axial direction of the locating pin body, an optical fiber emitting port communicated with the channel is formed in the outer side wall of the upper portion of the locating pin body, an optical fiber inlet communicated with the channel is formed in the bottom of the locating pin body, and a locating device is detachably connected to the optical fiber inlet;
one end of the fiber grating sensor enters the channel through the fiber inlet and is positioned at the fiber transmitting port, the other end of the fiber grating sensor extends out of the positioning pin body and is connected with fiber demodulation equipment, and the fiber grating sensor is positioned at the fiber inlet and is positioned through the positioning device.
2. The locating pin with the detection function according to claim 1, wherein the locating device comprises two limiting blocks, any limiting block is of a semi-arc structure, intrados of the two limiting blocks are oppositely arranged to form an inner hole together, and the fiber grating sensor is located in the inner hole.
3. The locating pin with detection function according to claim 2, wherein the intrados of any one of the stoppers is adhered with an arc-shaped elastic connecting member.
4. The positioning pin with detection function according to claim 1, wherein two optical fiber emitting ports are provided, which are axially symmetrically arranged along the center of the positioning pin body.
5. The locating pin with detection function according to claim 1, wherein a locating pen is arranged at one end of the fiber bragg grating sensor, which is positioned in the channel, and a locating groove is arranged in the middle of the inner top surface of the locating pin body, and the locating pen is matched with the locating groove.
6. The locating pin with detection function according to claim 1, wherein the locating pin body is made of 20CrMoV material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321716605.1U CN219911429U (en) | 2023-07-03 | 2023-07-03 | Locating pin with detect function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321716605.1U CN219911429U (en) | 2023-07-03 | 2023-07-03 | Locating pin with detect function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911429U true CN219911429U (en) | 2023-10-27 |
Family
ID=88429284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321716605.1U Active CN219911429U (en) | 2023-07-03 | 2023-07-03 | Locating pin with detect function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911429U (en) |
-
2023
- 2023-07-03 CN CN202321716605.1U patent/CN219911429U/en active Active
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