Split diffuse reflection optical fiber coaxial laser sensor easy to assemble

Abstract

The utility model provides a split type diffuse reflection optical fiber coaxial laser sensor easy to assemble, and belongs to the technical field of picking mechanical arms and automation intelligence. Comprising a diffuse reflection optical fiber coaxial laser sensor working end, an optical fiber coaxial laser sensor control end, an optical fiber coaxial laser sensor power supply end and an optical fiber coaxial laser sensor power line, and the optical fiber coaxial laser sensor working end and the optical fiber coaxial laser sensor power supply end are arranged on the two sides of the optical fiber coaxial laser sensor control end. And all the parts are connected through optical fiber coaxial laser sensor power lines. According to the split type diffuse reflection optical fiber coaxial laser sensor, the problems that in the prior art, the coaxiality requirement of the working end of an optical fiber coaxial laser sensor cannot be guaranteed, a PCB control panel packaging box at the control end is thoroughly locked, and a PCB control panel is difficult to maintain can be solved, and the production and assembly efficiency of the optical fiber coaxial laser sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fiber optic sensors, and particularly relates to a split type diffuse reflection fiber optic coaxial laser sensor which is easy to assemble. Background Art

[0002] Diffuse reflection fiber optic coaxial laser sensors are mainly used for measuring parameters such as distance measurement and in-place detection. Its working principle is that the light emitted by the light source is sent into the modulator through the optical fiber, and interacts with the external measured parameter in the modulator, so that the characteristics of the light (such as intensity, wavelength, frequency, phase, etc.) change, forming a demodulated optical signal. These optical signals are then sent into the photodetector through the optical fiber, and the measured parameter is obtained after demodulation. In a fiber optic coaxial laser sensor, the deviation degree between the emission optical path and the detection optical path is called the "coaxiality" of the fiber optic coaxial laser sensor, which is related to the stability of the sensor performance and the accuracy of the measurement. The measures to improve the "coaxiality" of the diffuse reflection fiber optic coaxial laser sensor mainly include optimizing the design and production process, selecting high-precision accessories, and strengthening the installation and debugging. Although selecting high-precision accessories and strengthening the installation and debugging are the simplest and most intuitive measures, optimizing the design and production process is the fundamental method to improve the performance of the fiber optic coaxial laser sensor.

[0003] At present, the working ends of fiber optic coaxial laser sensors almost all adopt an integrated design, and each component is assembled in sequence. For example: first, the lens and the laser diode module are fixed by using the laser diode module housing, then the laser diode module housing is sleeved with a plastic round tube, then the fiber optic component is added, and finally a stainless steel threaded tube is sleeved. This integrated method cannot guarantee the "coaxiality" of the sensor during production and assembly because the plastic round tube is soft. And during production and assembly, workers do not perform "coaxiality" testing. Instead, "coaxiality" testing is only carried out during the installation and application stage of the sensor. However, if the "coaxiality" of the sensor does not meet the requirements at this time, the encapsulated sensor needs to be disassembled to perform "coaxiality" debugging. Due to the inherent defects of its production and assembly process, "coaxiality" debugging is also a "blind adjustment". After debugging, it needs to be re-encapsulated and re-tested, which seriously restricts the production efficiency of fiber optic coaxial laser sensors.

[0004] At the same time, the control end of the fiber optic coaxial laser sensor mainly consists of a PCB control board and a PCB control board packaging box. The existing PCB control board packaging box encapsulates the PCB control board in a "pouring" manner, with high production costs. And once the PCB control board is damaged, the PCB control board packaging box needs to be completely destroyed, and even if a new PCB control board is replaced, it cannot be used. These are not conducive to improving the production efficiency of fiber optic coaxial laser sensors. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a split-type diffuse reflection fiber optic coaxial laser sensor that is easy to assemble, aiming to solve the problems in the prior art that the "coaxiality" of the working end of the fiber optic coaxial laser sensor cannot be guaranteed and the PCB control board of the control end is locked in the packaging box, resulting in low production efficiency of the fiber optic coaxial laser sensor. To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A split-type diffuse reflection fiber optic coaxial laser sensor that is easy to assemble, including a working end of the fiber optic coaxial laser sensor, a control end of the fiber optic coaxial laser sensor, a power supply end of the fiber optic coaxial laser sensor, and a power cord of the fiber optic coaxial laser sensor. The working end of the fiber optic coaxial laser sensor and the power supply end of the fiber optic coaxial laser sensor are on both sides of the control end of the fiber optic coaxial laser sensor, and both are connected through the power cord of the fiber optic coaxial laser sensor.

[0007] As a preferred solution of the present utility model, the working end of the fiber optic coaxial laser sensor includes a rubber sleeve, a stainless steel threaded tube, a fiber optic component, a lens, a laser diode module, a laser diode module housing, and a guiding copper tube. The laser diode module is connected to the lens. The laser diode module housing covers the lens and the laser diode module. The guiding copper tube covers the laser diode module housing. The fiber optic components are evenly distributed on the outer circle of the guiding copper tube. The stainless steel threaded tube covers the fiber optic components. The rubber sleeve covers the stainless steel threaded tube and the power cord of the fiber optic coaxial laser sensor.

[0008] As a preferred solution of the present utility model, the control end of the fiber optic coaxial laser sensor includes a lower box body of the sensor control end and an upper box body of the sensor control end;

[0009] The lower box body of the sensor control end includes a front wire outlet hole of the control end lower box body, a rear wire outlet hole of the control end lower box body, a side buckle of the control end lower box body, an end face buckle of the control end lower box body, a main fitting surface of the sensor control end lower box body, and a convex platform of the sensor control end lower box body. The axes of the front wire outlet hole of the control end lower box body and the rear wire outlet hole of the control end lower box body coincide. A sealing groove of the front wire outlet hole of the lower box body and a convex platform of the front wire outlet hole of the lower box body are provided on the front wire outlet hole of the control end lower box body. A convex platform of the sensor control end lower box body is provided on the main fitting surface of the sensor control end lower box body. The upper end surface of the sealing groove of the front wire outlet hole of the lower box body is at the same height as the main fitting surface of the sensor control end lower box body. The upper end surface of the convex platform of the front wire outlet hole of the lower box body is at the same height as the upper end surface of the convex platform of the sensor control end lower box body;

[0010] The upper box body of the sensor control end includes a front wire outlet hole of the control end upper box body, a rear wire outlet hole of the control end upper box body, a side card slot of the control end upper box body, an end face card slot of the control end upper box body, a main fitting surface of the control end upper box body, a groove of the control end upper box body, a knob groove, and an indicator light hole. The axes of the front wire outlet hole of the control end upper box body and the rear wire outlet hole of the control end upper box body coincide. A sealing groove and a groove of the front wire outlet hole of the upper box body are provided on the front wire outlet hole of the control end upper box body. A groove of the control end upper box body is provided on the main fitting surface of the control end upper box body. The knob groove is arranged on the top of the upper box body of the sensor control end, close to one side of the end face card slot of the control end upper box body. The indicator light hole is arranged at the middle position on the top of the upper box body of the sensor control end.

[0011] As a preferred solution of the present utility model, there are three side buckles on the lower box body of the control end, and there is one end face buckle on the lower box body of the control end, which is arranged on one side of the front wire outlet hole of the lower box body of the control end.

[0012] As a preferred solution of the present utility model, there are three side card slots on the upper box body of the control end, and there is one end face card slot on the upper box body of the control end, which is arranged on one side of the front wire outlet hole of the upper box body of the control end.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] (1) In this solution, a guiding copper tube is used to replace the commonly used plastic round tube. When the fiber optic coaxial laser sensor is produced and assembled, first, the lens and the laser diode module are fixed by the laser diode module housing, then the laser diode module housing is fixed as a whole by the guiding copper tube, and finally the whole is inserted into the stainless steel threaded tube. This split - type method, because both are "hard materials", has high assembly efficiency and better "coaxiality".

[0015] (2) In this solution, the upper box body and the lower box body of the PCB control board packaging box of the fiber optic coaxial laser sensor control end are connected by buckles, without being welded and are easy to disassemble, which improves the assembly efficiency and reduces the maintenance cost. Description of the Drawings

[0016] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a three - dimensional structure diagram of the present utility model;

[0018] Figure 2 is a side view of the structure in the present utility model;

[0019] Figure 3 is a partial cross - sectional view of the structure in the present utility model;

[0020] Figure 4 This is a three-dimensional view of the lower box body structure of the sensor control end in the present utility model;

[0021] Figure 5 This is a three-dimensional view of the upper box body structure of the sensor control end in the present utility model.

[0022] In the figure: 1. Working end of the diffuse reflection fiber optic coaxial laser sensor; 11. Rubber sleeve; 12. Stainless steel threaded tube; 13. Fiber optic component; 14. Lens; 15. Laser diode module; 16. Laser diode module housing; 17. Alignment copper tube; 2. Fiber optic coaxial laser sensor control end; 21. Lower box body of the sensor control end; 211. Front wire outlet hole of the control end lower box body; 212. Rear wire outlet hole of the control end lower box body; 213. Side buckle of the control end lower box body; 214. End face buckle of the control end lower box body; 215. Sealing groove of the front wire outlet hole of the lower box body; 216. Boss of the front wire outlet hole of the lower box body; 217. Main fitting surface of the control end lower box body; 218. Boss of the control end lower box body; 22. Upper box body of the sensor control end; 221. Front wire outlet hole of the control end upper box body; 222. Rear wire outlet hole of the control end upper box body; 223. Side card slot of the control end upper box body; 224. End face card slot of the control end upper box body; 225. Sealing groove of the front wire outlet hole of the upper box body; 226. Groove of the front wire outlet hole of the upper box body; 227. Main fitting surface of the control end upper box body; 228. Groove of the control end upper box body; 229. Knob groove; 2210. Indicator light hole; 3. Power supply end of the fiber optic coaxial laser sensor; 4. Power cord of the fiber optic coaxial laser sensor. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0024] Please refer to Figures 1-5 , the present utility model provides the following technical solutions:

[0025] A split-type diffuse reflection fiber optic coaxial laser sensor that is easy to assemble, including a working end 1 of the diffuse reflection fiber optic coaxial laser sensor, a control end 2 of the fiber optic coaxial laser sensor, a power supply end 3 of the fiber optic coaxial laser sensor, and a power cord 4 of the fiber optic coaxial laser sensor. The working end 1 of the diffuse reflection fiber optic coaxial laser sensor and the power supply end 3 of the fiber optic coaxial laser sensor are on both sides of the control end 2 of the fiber optic coaxial laser sensor, and are both connected through the power cord 4 of the fiber optic coaxial laser sensor.

[0026] In a specific embodiment of the present utility model, the working end 1 of the diffuse reflection fiber optic coaxial laser sensor includes a rubber sleeve 11, a stainless steel threaded tube 12, an optical fiber assembly 13, a lens 14, a laser diode module 15, a laser diode module housing 16, and a guiding copper tube 17. The laser diode module 15 is connected to the lens 14. The laser diode module housing 16 houses the lens 14 and the laser diode module 15. The guiding copper tube 17 houses the laser diode module housing 16. The optical fiber assemblies 13 are evenly distributed on the outer circle of the guiding copper tube 17. The stainless steel threaded tube 12 houses the optical fiber assemblies 13. The rubber sleeve 11 houses the stainless steel threaded tube 12 and the power cord 4 of the fiber optic coaxial laser sensor.

[0027] In a specific embodiment of the present utility model, the control end 2 of the fiber optic coaxial laser sensor includes a sensor control end lower box body 21, a sensor control end upper box body 22, and a PCB control board. The sensor control end lower box body 21 includes a control end lower box body front wire outlet hole 211, a control end lower box body rear wire outlet hole 212, a control end lower box body side buckle 213, a control end lower box body end face buckle 214, a sensor control end lower box body main fitting surface 217, and a sensor control end lower box body boss 218. The axes of the control end lower box body front wire outlet hole 211 and the control end lower box body rear wire outlet hole 212 coincide. A lower box body front wire outlet hole sealing groove 215 and a lower box body front wire outlet hole boss 216 are provided on the control end lower box body front wire outlet hole 211. A sensor control end lower box body boss 218 is provided on the sensor control end lower box body main fitting surface 217. The upper end surface of the lower box body front wire outlet hole sealing groove 215 is at the same height as the sensor control end lower box body main fitting surface 217. The upper end surface of the lower box body front wire outlet hole boss 216 is at the same height as the upper end surface of the sensor control end lower box body boss 218. The sensor control end upper box body 22 includes a control end upper box body front wire outlet hole 221, a control end upper box body rear wire outlet hole 222, a control end upper box body side card slot 223, a control end upper box body end face card slot 224, a control end upper box body main fitting surface 227, a control end upper box body groove 228, a knob groove 229, and an indicator light hole 2210. The axes of the control end upper box body front wire outlet hole 221 and the control end upper box body rear wire outlet hole 222 coincide. An upper box body front wire outlet hole sealing groove 225 and an upper box body front wire outlet hole groove 226 are provided on the control end upper box body front wire outlet hole 221. A control end upper box body groove 228 is provided on the control end upper box body main fitting surface 227. The knob groove 229 is provided on the top of the sensor control end upper box body 22 near one side of the control end upper box body end face card slot 224. The indicator light hole 2210 is provided at the middle position on the top of the sensor control end upper box body 22.

[0028] In a specific embodiment of the present utility model, there are three control end lower box body side buckles 213, and there is one control end lower box body end face buckle 214 which is provided on one side of the control end lower box body front wire outlet hole 211.

[0029] In a specific embodiment of the present utility model, there are three card slots 223 on the side surface of the upper box body of the control end, and there is one card slot 224 on the end surface of the upper box body of the control end, which is arranged on one side of the front wire outlet hole 221 of the upper box body of the control end.

[0030] It should be noted that the fiber optic coaxial laser sensor power cord 4, the fiber optic component 13, and the laser diode module 15 used in the present utility model are all prior arts and will not be elaborated here.

[0031] The working principle and usage process of the present utility model: When assembling the working end 1 of the fiber optic coaxial laser sensor, first snap the lens 14 into the laser diode module 15, then put the assembled lens 14 and laser diode module 15 into the laser diode module housing 16, then put the laser diode module housing 16 as a whole into the alignment copper tube 17, then put the fiber optic component 13 around the alignment copper tube 17, then insert the assembled fiber optic component 13, lens 14, laser diode module 15, laser diode module housing 16, and alignment copper tube 17 as a whole into the stainless steel threaded tube 12, and finally fix it with the rubber sleeve 11; When assembling the control end 2 of the fiber optic coaxial laser sensor, just snap the control end lower box body side buckle 213 and the control end lower box body end surface buckle 214 of the sensor control end lower box body 21 with the control end upper box body side card slot 223 and the control end upper box body end surface card slot 224 of the sensor control end upper box body 22 respectively, and at the same time ensure that the control end lower box body main fitting surface 217 and the control end upper box body main fitting surface 227 are in fit.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A split diffused reflection fiber optic coaxial laser sensor that is easy to assemble, characterized in that: It includes the working end (1) of the diffuse reflection fiber coaxial laser sensor, the control end (2) of the fiber coaxial laser sensor, the power supply end (3) of the fiber coaxial laser sensor, and the power cord (4) of the fiber coaxial laser sensor. The working end (1) of the fiber coaxial laser sensor and the power supply end (3) are on both sides of the control end (2) of the fiber coaxial laser sensor, and both are connected through the power cord (4) of the fiber coaxial laser sensor.

2. The split-type diffuse reflection optical fiber coaxial laser sensor according to claim 1, characterized in that: The working end (1) of the fiber coaxial laser sensor includes a rubber sleeve (11), a stainless steel threaded tube (12), a fiber optic component (13), a lens (14), a laser diode module (15), a laser diode module housing (16), and a guiding copper tube (17). The laser diode module (15) is connected to the lens (14). The laser diode module housing (16) covers the lens (14) and the laser diode module (15). The guiding copper tube (17) covers the laser diode module housing (16). The fiber optic components (13) are evenly distributed on the outer circle of the guiding copper tube (17). The stainless steel threaded tube (12) covers the fiber optic components (13). The rubber sleeve (11) covers the stainless steel threaded tube (12) and the power cord (4) of the fiber coaxial laser sensor.

3. The split-type diffuse reflection optical fiber coaxial laser sensor according to claim 1, wherein: The control end (2) of the fiber coaxial laser sensor includes a lower box body (21) of the sensor control end, an upper box body (22) of the sensor control end, and a PCB control board. The lower box body (21) of the sensor control end includes a front wire outlet hole (211) of the control end lower box body, a rear wire outlet hole (212) of the control end lower box body, a side buckle (213) of the control end lower box body, an end face buckle (214) of the control end lower box body, a main fitting surface (217) of the control end lower box body, and a boss (218) of the control end lower box body. The axes of the front wire outlet hole (211) of the control end lower box body and the rear wire outlet hole (212) of the control end lower box body coincide. A sealing groove (215) of the front wire outlet hole of the lower box body and a boss (216) of the front wire outlet hole of the lower box body are provided on the front wire outlet hole (211) of the control end lower box body. A boss (218) of the control end lower box body is provided on the main fitting surface (217) of the control end lower box body. The upper end face of the sealing groove (215) of the front wire outlet hole of the lower box body is at the same height as the main fitting surface (217) of the control end lower box body. The upper end face of the boss (216) of the front wire outlet hole of the lower box body is at the same height as the upper end face of the boss (218) of the control end lower box body. The upper box body (22) of the sensor control end includes a front wire outlet hole (221) of the control end upper box body, a rear wire outlet hole (222) of the control end upper box body, a side clamping groove (223) of the control end upper box body, an end face clamping groove (224) of the control end upper box body, a main fitting surface (227) of the control end upper box body, a groove (228) of the control end upper box body, a knob groove (229), and an indicator light hole (2210). The axes of the front wire outlet hole (221) and the rear wire outlet hole (222) of the control end upper box body coincide. A sealing groove (225) and a groove (226) of the front wire outlet hole of the upper box body are provided on the front wire outlet hole (221) of the control end upper box body. A groove (228) of the control end upper box body is provided on the main fitting surface (227) of the control end upper box body. The knob groove (229) is arranged on one side of the top of the upper box body (22) of the sensor control end near the end face clamping groove (224) of the control end upper box body. The indicator light hole (2210) is arranged at the middle position of the top of the upper box body (22) of the sensor control end.

4. The split diffused reflection optical fiber coaxial laser sensor easy to assemble according to claim 3, characterized in that: There are three side buckles (213) on the lower box body of the control end, and there is one end face buckle (214) on the lower box body of the control end, which is arranged on one side of the front wire outlet hole (211) of the lower box body of the control end.

5. The split-type diffuse reflection optical fiber coaxial laser sensor according to claim 3, characterized in that: There are three side clamping grooves (223) on the upper box body of the control end, and there is one end face clamping groove (224) on the upper box body of the control end, which is arranged on one side of the front wire outlet hole (221) of the upper box body of the control end.

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