Cutting fluid concentration online detection device

Abstract

The invention discloses a cutting fluid concentration on-line detection device, which belongs to the technical field of machining, and comprises a shell, and is characterized by further comprising a material circulation pipe, an image collector, an image processor and a display, an LED light source is mounted on the shell, one end of the material circulation pipe is connected with a liquid inlet, the other end of the material circulation pipe is connected with a liquid outlet, and the liquid outlet is connected with the image collector. A scale, a prism, a lens and a light channel used for guiding light are arranged on the shell, the material flowing pipe is located between the light channel and the prism, the lens is located between the prism and the scale, the image collector is electrically connected with the image processor, and the image processor is electrically connected with the displayer. On-line detection is carried out through image recognition after the bright and dark area images are collected, the number of needed components is small, a complex processing circuit in the device is abandoned, centralized data processing can be achieved, the use cost is reduced, and large-scale deployment and application can be carried out in a workshop.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to an online detection device for cutting fluid concentration. Background Art

[0002] Cutting fluid refers to the cooling and lubricating fluid used in metal cutting. As an important supporting material for mechanical processing, cutting fluid is one of the indispensable production factors in most processing. It mainly improves the surface quality of workpieces, improves processing accuracy, prolongs tool life, and improves the corrosion resistance of workpiece surfaces through cooling, lubrication, cleaning and rust prevention.

[0003] The concentration of cutting fluid is an important indicator that affects the performance of cutting fluid. Therefore, monitoring the concentration of cutting fluid is the most important task in the process of cutting fluid maintenance and management. The traditional method of detecting the concentration of cutting fluid is to use a handheld refractometer for detection. The detection efficiency is low, the labor consumption is high, and the data management is difficult. It is difficult to adapt to the development trend of modern intelligent manufacturing. Therefore, the use of online concentration sensors has become an important device for cutting fluid management in modern manufacturing workshops. At present, online cutting fluid concentration sensors in the field are generally more expensive. This type of online concentration sensor generally uses the refraction principle and integrates the photosensitive circuit, processing and analysis module, and electrical signal output module into the device, which greatly increases the cost of this type of sensor and is not suitable for large-scale application and promotion.

[0004] A Chinese patent document with publication number CN113391031 A and publication date September 14, 2021 discloses an intelligent online monitoring device for cutting fluid parameters, including a housing, an LCD touch screen, a circulation slot, a concentration sensor, a pH sensor, a circulation slot inlet pipe, a clean water storage bottle, a pump, a clean water inlet pipe, a pump inlet pipe, an electromagnetic two-way valve, a cutting fluid outlet pipe, a cutting fluid inlet pipe, a controller, and a communication module, wherein the circulation slot, the concentration sensor, the pH sensor, the circulation slot inlet pipe, the clean water storage bottle, the pump, the electromagnetic two-way valve, the controller and the communication module are arranged in the housing, and the concentration sensor, pH sensor, the circulation slot inlet pipe, the clean water storage bottle, the pump, the electromagnetic two-way valve, the controller and the communication module are arranged in the housing. The H sensor is used to detect the concentration and pH of the cutting fluid in the circulation groove, and the LCD touch screen can display the concentration and pH value. The two liquid inlets of the electromagnetic two-way valve are respectively connected to the clean water inlet pipe and the cutting fluid inlet pipe, and the liquid outlet is connected to the liquid inlet of the pump through the pump inlet pipe. The liquid outlet of the pump is connected to the liquid inlet of the circulation groove, and the liquid outlet of the circulation groove is connected to the cutting fluid outlet pipe. The clean water inlet pipe is connected to the clean water storage bottle. The controller is communicatively connected with the concentration sensor and the pH sensor and can send the concentration and pH value to the host computer and the database through the communication module.

[0005] The cutting fluid parameter intelligent online monitoring device disclosed in the patent document collects the concentration and pH value of the machine tool cutting fluid in real time during the working process, and uploads it to the host computer and database in real time through wireless communication to realize digital management of production. However, there is still the problem that the concentration sensor is high in cost and is not suitable for large-scale application and promotion. Summary of the invention

[0006] In order to overcome the defects of the above-mentioned prior art, the present invention provides an online detection device for cutting fluid concentration. The present invention collects images of light and dark areas and then performs online detection through image recognition. Fewer components are required, and the complex processing circuits inside the device are discarded. Centralized data processing can be achieved, the cost of use is reduced, and large-scale deployment and application in workshops can be carried out.

[0007] The present invention is achieved through the following technical solutions: An online detection device for cutting fluid concentration comprises a shell, characterized in that it also comprises a material circulation tube, an image collector, an image processor and a display, an LED light source is installed on the shell, a liquid inlet is arranged on one side of the shell, and a liquid outlet is arranged on the other side of the shell, one end of the material circulation tube is connected to the liquid inlet, and the other end of the material circulation tube is connected to the liquid outlet, a scale, a prism, a lens and a light channel for guiding light are arranged on the shell, the material circulation tube is located between the light channel and the prism, the lens is located between the prism and the scale, the image collector is electrically connected to the image processor, and the image processor is electrically connected to the display.

[0008] The light channel is an optical fiber.

[0009] The material flow pipe is a circular pipe, and the cutting fluid to be tested enters the material flow pipe from the liquid inlet, fills the material flow pipe, and then is discharged from the liquid outlet.

[0010] The prism is made of transparent glass or plastic with uniform material, and is used to cooperate with the cutting fluid to be tested to produce refraction of light.

[0011] The lens is used to focus the refracted light to form bright and dark area images on the ruler.

[0012] The ruler is a thin plate with light transmittance. The side of the ruler facing the image collector has uniform scales and corresponding visual values. The ruler is used for displaying and referencing images in light and dark areas.

[0013] The image collector is used to collect the light and dark area images formed on the ruler, and transmit the light and dark area images to the image processor.

[0014] The image processor is used to identify the transmitted light and dark area images through a trained data model and convert them into corresponding readings for transmission to the display.

[0015] The image processor is provided with a network interface, and the image processor is used to identify the transmitted light and dark area images and convert them into corresponding indications and upload them to the workshop management and control database.

[0016] The beneficial effects of the present invention are mainly manifested in the following aspects: 1. In the present invention, an LED light source is installed on the shell, a liquid inlet is arranged on one side of the shell, a liquid outlet is arranged on the other side of the shell, one end of a material flow tube is connected to the liquid inlet, and the other end of the material flow tube is connected to the liquid outlet. A scale, a prism, a lens and a light channel for guiding light are arranged on the shell, the material flow tube is located between the light channel and the prism, the lens is located between the prism and the scale, the image collector is electrically connected to the image processor, and the image processor is electrically connected to the display. Compared with the prior art, online detection is performed by collecting images of light and dark areas and then performing image recognition, fewer components are required, and the complex processing circuit inside the device is abandoned, so that centralized data processing can be achieved, the use cost is reduced, and large-scale deployment and application in workshops can be carried out.

[0017] 2. The present invention can adjust the detection resolution by adjusting the range and density of the training set, and is flexible to use.

[0018] 3. The detection device of the present invention not only has a simple overall structure and a simple detection principle, but also has high detection reliability.

[0019] 4. In the present invention, the image processor is used to identify the transmitted light and dark area images through a trained data model and convert them into corresponding readings for transmission to the display. It can process the concentration values ​​of the cutting fluid of the equipment in the entire workshop, achieve the purpose of centralized data processing, and reduce the detection cost.

[0020] 5. In the present invention, a network interface is provided on the image processor, and the image processor is used to identify the transmitted light and dark area images and convert them into corresponding indications and upload them to the workshop management and control database, which provides convenience for workshop data management and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementations, wherein: Figure 1 It is a structural schematic diagram of the present invention; Markings in the figure: 1. LED light source, 2. light channel, 3. material flow tube, 4. liquid inlet, 5. liquid outlet, 6. prism, 7. lens, 8. ruler, 9. image collector, 10. image processor, 11. display, 12. shell. DETAILED DESCRIPTION

[0022] Example 1 See also Figure 1, an online detection device for cutting fluid concentration, comprising a shell 12, a material circulation tube 3, an image collector 9, an image processor 10 and a display 11, wherein an LED light source 1 is mounted on the shell 12, a liquid inlet 4 is arranged on one side of the shell 12, and a liquid outlet 5 is arranged on the other side of the shell 12, one end of the material circulation tube 3 is connected to the liquid inlet 4, and the other end of the material circulation tube 3 is connected to the liquid outlet 5, a scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are arranged on the shell 12, the material circulation tube 3 is located between the light channel 2 and the prism 6, the lens 7 is located between the prism 6 and the scale 8, the image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11.

[0023] This embodiment is the most basic implementation method. An LED light source 1 is installed on the shell 12. A liquid inlet 4 is provided on one side of the shell 12, and a liquid outlet 5 is provided on the other side of the shell 12. One end of the material flow tube 3 is connected to the liquid inlet 4, and the other end of the material flow tube 3 is connected to the liquid outlet 5. A scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are provided on the shell 12. The material flow tube 3 is located between the light channel 2 and the prism 6, and the lens 7 is located between the prism 6 and the scale 8. The image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11. Compared with the prior art, online detection is performed by collecting images of light and dark areas and then performing image recognition. Fewer components are required, and the complex processing circuit inside the device is abandoned. Centralized data processing can be achieved, the cost of use is reduced, and large-scale deployment and application in workshops can be carried out.

[0024] Example 2 See also Figure 1 , an online detection device for cutting fluid concentration, comprising a shell 12, a material circulation tube 3, an image collector 9, an image processor 10 and a display 11, wherein an LED light source 1 is mounted on the shell 12, a liquid inlet 4 is arranged on one side of the shell 12, and a liquid outlet 5 is arranged on the other side of the shell 12, one end of the material circulation tube 3 is connected to the liquid inlet 4, and the other end of the material circulation tube 3 is connected to the liquid outlet 5, a scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are arranged on the shell 12, the material circulation tube 3 is located between the light channel 2 and the prism 6, the lens 7 is located between the prism 6 and the scale 8, the image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11.

[0025] Preferably, the optical channel 2 is an optical fiber.

[0026] The material circulation pipe 3 is a circular pipe, and the cutting fluid to be tested enters the material circulation pipe 3 from the liquid inlet 4, fills the material circulation pipe 3, and then is discharged from the liquid outlet 5.

[0027] The prism 6 is made of transparent glass or plastic with uniform material, and is used to cooperate with the cutting fluid to be tested to produce refraction of light.

[0028] This embodiment is a preferred implementation mode. By adjusting the range and density of the training set, the detection resolution can be adjusted, and the use is flexible.

[0029] Example 3 See also Figure 1 , an online detection device for cutting fluid concentration, comprising a shell 12, a material circulation tube 3, an image collector 9, an image processor 10 and a display 11, wherein an LED light source 1 is mounted on the shell 12, a liquid inlet 4 is arranged on one side of the shell 12, and a liquid outlet 5 is arranged on the other side of the shell 12, one end of the material circulation tube 3 is connected to the liquid inlet 4, and the other end of the material circulation tube 3 is connected to the liquid outlet 5, a scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are arranged on the shell 12, the material circulation tube 3 is located between the light channel 2 and the prism 6, the lens 7 is located between the prism 6 and the scale 8, the image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11.

[0030] The optical channel 2 is an optical fiber.

[0031] The material circulation pipe 3 is a circular pipe, and the cutting fluid to be tested enters the material circulation pipe 3 from the liquid inlet 4, fills the material circulation pipe 3, and then is discharged from the liquid outlet 5.

[0032] Further preferably, the prism 6 is made of transparent glass or plastic with uniform material, and the prism 6 is used to cooperate with the cutting fluid to be tested to produce refraction of light.

[0033] The lens 7 is used to focus the refracted light to form a light and dark area image on the scale 8.

[0034] The ruler 8 is a thin plate with light transmittance. The side of the ruler 8 facing the image collector 9 has uniform scales and corresponding visual values. The ruler 8 is used for displaying and referencing images of light and dark areas.

[0035] This embodiment is another preferred implementation manner. The detection device not only has a simple overall structure and a simple detection principle, but also has high detection reliability.

[0036] Example 4 See also Figure 1, an online detection device for cutting fluid concentration, comprising a shell 12, a material circulation tube 3, an image collector 9, an image processor 10 and a display 11, wherein an LED light source 1 is mounted on the shell 12, a liquid inlet 4 is arranged on one side of the shell 12, and a liquid outlet 5 is arranged on the other side of the shell 12, one end of the material circulation tube 3 is connected to the liquid inlet 4, and the other end of the material circulation tube 3 is connected to the liquid outlet 5, a scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are arranged on the shell 12, the material circulation tube 3 is located between the light channel 2 and the prism 6, the lens 7 is located between the prism 6 and the scale 8, the image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11.

[0037] The optical channel 2 is an optical fiber.

[0038] The material circulation pipe 3 is a circular pipe, and the cutting fluid to be tested enters the material circulation pipe 3 from the liquid inlet 4, fills the material circulation pipe 3, and then is discharged from the liquid outlet 5.

[0039] The prism 6 is made of transparent glass or plastic with uniform material, and is used to cooperate with the cutting fluid to be tested to produce refraction of light.

[0040] The lens 7 is used to focus the refracted light to form a light and dark area image on the scale 8.

[0041] The ruler 8 is a thin plate with light transmittance. The side of the ruler 8 facing the image collector 9 has uniform scales and corresponding visual values. The ruler 8 is used for displaying and referencing images of light and dark areas.

[0042] The image collector 9 is used to collect the light and dark area images formed on the ruler 8 and transmit the light and dark area images to the image processor 10 .

[0043] The image processor 10 is used to identify the transmitted light and dark area images through a trained data model and convert them into corresponding readings and transmit them to the display 11.

[0044] This embodiment is another preferred implementation method. The image processor 10 is used to identify the transmitted light and dark area images through a trained data model and convert them into corresponding readings for transmission to the display 11. It can process the concentration values ​​of the cutting fluid of the equipment in the entire workshop, achieve the purpose of centralized data processing, and reduce the detection cost.

[0045] Example 5 See also Figure 1, an online detection device for cutting fluid concentration, comprising a shell 12, a material circulation tube 3, an image collector 9, an image processor 10 and a display 11, wherein an LED light source 1 is mounted on the shell 12, a liquid inlet 4 is arranged on one side of the shell 12, and a liquid outlet 5 is arranged on the other side of the shell 12, one end of the material circulation tube 3 is connected to the liquid inlet 4, and the other end of the material circulation tube 3 is connected to the liquid outlet 5, a scale 8, a prism 6, a lens 7 and a light channel 2 for guiding light are arranged on the shell 12, the material circulation tube 3 is located between the light channel 2 and the prism 6, the lens 7 is located between the prism 6 and the scale 8, the image collector 9 is electrically connected to the image processor 10, and the image processor 10 is electrically connected to the display 11.

[0046] The optical channel 2 is an optical fiber.

[0047] The material circulation pipe 3 is a circular pipe, and the cutting fluid to be tested enters the material circulation pipe 3 from the liquid inlet 4, fills the material circulation pipe 3, and then is discharged from the liquid outlet 5.

[0048] The prism 6 is made of transparent glass or plastic with uniform material, and is used to cooperate with the cutting fluid to be tested to produce refraction of light.

[0049] The lens 7 is used to focus the refracted light to form a light and dark area image on the scale 8.

[0050] The ruler 8 is a thin plate with light transmittance. The side of the ruler 8 facing the image collector 9 has uniform scales and corresponding visual values. The ruler 8 is used for displaying and referencing images of light and dark areas.

[0051] The image collector 9 is used to collect the light and dark area images formed on the ruler 8 and transmit the light and dark area images to the image processor 10 .

[0052] More preferably, the image processor 10 is used to identify the transmitted light and dark area images through a trained data model and convert them into corresponding readings to be transmitted to the display 11.

[0053] The image processor 10 is provided with a network interface, and the image processor 10 is used to identify the transmitted light and dark area images and convert them into corresponding indications and upload them to the workshop control database.

[0054] This embodiment is the best implementation mode. A network interface is provided on the image processor 10. The image processor 10 is used to identify the transmitted light and dark area images and convert them into corresponding indications and upload them to the workshop management and control database, which provides convenience for workshop data management and control.

[0055] The real-time detection process of the cutting fluid concentration of the present invention is as follows: Step S1, installing the detection device on the pipeline of the cutting fluid to be tested, the cutting fluid to be tested enters the material flow pipe 3 through the liquid inlet 4 and is discharged from the liquid outlet 5; Step S2, after the LED light source is started, it irradiates the cutting fluid to be tested in the material flow pipe 3 through the light channel 2; Step S3, the light penetrates the cutting fluid to be tested and then enters the prism 6, and forms a refracted light through the cutting fluid to be tested and the prism 6; Step S4, the refracted light passes through the lens 7 to form a light and dark area image on the ruler 8; Step S5, the image collector 9 regularly collects the images of the light and dark areas on the ruler 8 and transmits them to the image processor 10; Step S6, the image processor 10 recognizes the light and dark area images transmitted in real time through the trained data model and converts them into corresponding numerical values ​​for display on the display 11. At the same time, the image processor 10 outputs the recognized and converted numerical values ​​in real time through the network and uploads them to the workshop management and control database.

Claims

1. A cutting fluid concentration online detection device, comprising a housing (12), characterized in that: The invention also comprises a material circulation tube (3), an image collector (9), an image processor (10) and a display (11); an LED light source (1) is mounted on the housing (12); a liquid inlet (4) is arranged on one side of the housing (12); a liquid outlet (5) is arranged on the other side of the housing (12); one end of the material circulation tube (3) is connected to the liquid inlet (4); the other end of the material circulation tube (3) is connected to the liquid outlet (5); a scale (8), a prism (6), a lens (7) and a light channel (2) for guiding light are arranged on the housing (12); the material circulation tube (3) is located between the light channel (2) and the prism (6); the lens (7) is located between the prism (6) and the ruler (8); the image collector (9) is electrically connected to the image processor (10); and the image processor (10) is electrically connected to the display (11).

2. The cutting fluid concentration online detection device according to claim 1, characterized in that: The optical channel (2) is an optical fiber.

3. The cutting fluid concentration online detection device according to claim 2, characterized in that: The material circulation pipe (3) is a circular pipe, and is used for the cutting fluid to be tested to enter through the liquid inlet (4), fill the material circulation pipe (3), and then be discharged through the liquid outlet (5).

4. The cutting fluid concentration online detection device according to claim 3, characterized in that: The prism (6) is made of transparent glass or plastic with uniform material, and the prism (6) is used to cooperate with the cutting fluid to be tested to produce refraction of light.

5. The cutting fluid concentration online detection device according to claim 4, characterized in that: The lens (7) is used to focus the refracted light to form a light and dark area image on the scale (8).

6. The cutting fluid concentration online detection device according to claim 5, characterized in that: The ruler (8) is a thin plate with light transmittance. The side of the ruler (8) facing the image collector (9) has uniform scales and corresponding visual values. The ruler (8) is used for displaying and referencing images of light and dark areas.

7. The cutting fluid concentration online detection device according to claim 6, characterized in that: The image collector (9) is used to collect the light and dark area images formed on the ruler (8), and transmit the light and dark area images to the image processor (10).

8. The cutting fluid concentration online detection device according to claim 7, characterized in that: The image processor (10) is used to identify the transmitted light and dark area image through a trained data model and convert it into corresponding indications for transmission to the display (11).

9. The cutting fluid concentration online detection device according to claim 8, characterized in that: The image processor (10) is provided with a network interface, and the image processor (10) is used to identify the transmitted light and dark area images and convert them into corresponding readings for uploading to the workshop control database.

Images