Cutter cutting edge tipping detection device in cutter blade machining process

Abstract

The utility model discloses a cutter cutting edge tipping detection device in a cutter blade machining process, which comprises a cutter blade arranged on a cutter bar, and further comprises a detection assembly arranged on the cutter bar and used for detecting a cutting edge in the cutter blade machining process, and the detection assembly comprises a fixed box fixedly connected to two opposite side walls of the cutter bar. Transparent protective tubes are obliquely arranged on the two fixing boxes, image sensors are arranged in the two transparent protective tubes, and the cutter bar is provided with an analysis assembly used for receiving and analyzing images collected by the two image sensors. According to the cutter cutting edge tipping detection device in the cutter blade machining process, due to the arrangement of the detection assembly and under the analysis action of the analysis assembly, continuous detection on the cutting edge in the blade machining process is achieved, and therefore the risk that the damaged cutting edge cannot be replaced in time due to negligence of blade observation is reduced, and the machining efficiency is improved. And therefore, the blade replacement timeliness is improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool inspection technology, specifically a tool edge chipping detection device during the tool cutting process. Background Technology

[0002] In CNC lathe machining, the cutting of the workpiece is achieved by using cutting inserts. Therefore, the cutting edge accuracy of the inserts has a significant impact on the machining accuracy of the workpiece. In the current machining process, the observation of the cutting edge condition is mainly done by the operator visually judging the cutting edge during the material change interval. This not only has low accuracy in judging the cutting edge, but also makes it difficult to continuously monitor the cutting edge during the machining process. As a result, damaged cutting edges are easily overlooked due to the operator's negligence in observing the cutting edge, and thus affect the machining accuracy of the workpiece.

[0003] Therefore, there is an urgent need for a tool edge chipping detection device during the tool cutting process to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tool edge chipping detection device during tool blade processing, comprising a blade mounted on a tool holder, and a detection component disposed on the tool holder for detecting the cutting edge of the blade during the processing.

[0005] The detection assembly includes a fixed box fixedly connected to two opposite side walls of the tool holder. The two fixed boxes are inclinedly arranged with transparent protective tubes, and image sensors are installed inside the two transparent protective tubes. The tool holder is equipped with an analysis assembly for receiving and analyzing the images acquired by the two image sensors.

[0006] The analysis component includes a mounting hole on the side of the tool holder away from the blade. A mounting plate is connected to the bottom wall of the mounting hole by multiple screws. The mounting plate is equipped with a graphics processing unit server. The two image sensors are electrically connected to the graphics processing unit server via connecting wires. The mounting plate is also equipped with a controller, a power management unit, and a wireless signal transmitter. The graphics processing unit server, controller, and wireless signal transmitter are electrically connected to the power management unit, and the graphics processing unit server and wireless signal transmitter are electrically connected to the controller.

[0007] A protective cover is attached to the side of the mounting hole furthest from the blade by multiple screws.

[0008] The mounting hole is equipped with a cleaning assembly for cleaning the blade and the transparent protective tube. The cleaning assembly includes a fixing plate fixedly connected to the bottom wall of the mounting hole. The fixing plate is connected to a fan via a fixing ring. The air outlet of the fan is connected to two air supply pipes via a connecting pipe. The two fixing boxes are inclinedly arranged with air jet pipes on the side near the transparent protective tube. The ends of the two air supply pipes away from the fan pass through the blade bar and are connected to the air jet pipes. The ends of the two air jet pipes near the transparent protective tube are connected to branch pipes.

[0009] A filter plate is provided at one end of the jet pipe and the branch pipe respectively.

[0010] The side wall of the tool holder is provided with an air inlet, and the air inlet is equipped with a waterproof and breathable valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a tool edge chipping detection device during the tool cutting process. Through the setting of the detection component and the analysis of the analysis component, it realizes continuous detection of the tool edge during the tool cutting process. This reduces the risk of damaged tool edges not being replaced in time due to negligence in tool observation, thereby improving the timeliness of tool replacement and further ensuring the machining accuracy of the workpiece. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the installation position of the detection component of this utility model on the guide rod;

[0015] Figure 3 This is a schematic diagram of the internal structure of the detection component of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the analysis component of this utility model;

[0017] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 6 This is a schematic diagram of the workpiece machining process using the blade of this utility model.

[0019] In the diagram: 101, Blade; 102, Blade holder; 201, Mounting box; 202, Transparent protective tube; 203, Image sensor; 301, Mounting plate; 302, Graphics processing unit server; 303, Connecting wire; 304, Controller; 305, Power management unit; 306, Mounting hole; 307, Protective cover; 308, Wireless signal transmitter; 401, Mounting plate; 402, Fan; 403, Air supply pipe; 404, Jet pipe; 405, Branch pipe; 406, Filter plate; 5, Waterproof and breathable valve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1-6 The figure shows a tool edge chipping detection device in the tool cutting process, which includes a blade 101 mounted on a tool holder 102, and a detection component disposed on the tool holder 102 for detecting the cutting edge of the blade 101 during the cutting process.

[0023] The detection assembly includes a fixed box 201 fixedly connected to two opposite side walls of the tool bar 102. The two fixed boxes 201 are inclinedly provided with transparent protective tubes 202. Image sensors 203 are provided inside the two transparent protective tubes 202. The tool bar 102 is provided with an analysis assembly for receiving and analyzing the images collected by the two image sensors 203.

[0024] It should be noted that by setting up the detection component, under the analysis of the analysis component, continuous detection of the cutting edge is achieved during the machining of the cutting tool 101. This reduces the risk of damaged cutting edges not being replaced in time due to negligence in observing the cutting tool 101, thereby improving the timeliness of the replacement of the cutting tool 101 and further ensuring the machining accuracy of the workpiece.

[0025] Please see Figure 4The analysis components shown in the figure include a mounting hole 306 on the side of the tool holder 102 away from the blade 101. The bottom wall of the mounting hole 306 is connected to a mounting plate 301 by multiple screws. The mounting plate 301 is equipped with a graphics processing unit server 302. Two image sensors 203 are electrically connected to the graphics processing unit server 302 through connecting wires 303. The mounting plate 301 is also equipped with a controller 304, a power management unit 305, and a wireless signal transmitter 308. The graphics processing unit server 302, the controller 304, and the wireless signal transmitter 308 are electrically connected to the power management unit 305. The graphics processing unit server 302 and the wireless signal transmitter 308 are electrically connected to the controller 304.

[0026] It should be noted here that the analysis components are configured to analyze and judge the images acquired by the image sensor 203.

[0027] It is worth noting that the graphics processing unit server 302, controller 304, wireless signal transmitter 308, and power management unit 305 are existing technologies and will not be described in detail here.

[0028] Please see Figure 2 The mounting hole 306 in the figure is connected to a protective cover plate 307 by multiple screws on the side away from the blade 101.

[0029] It should be noted here that the protective cover 307 is used to protect the electrical components inside the mounting hole 306.

[0030] Working principle: During CNC lathe machining, firstly, the insert 101 is installed on the tool holder 102, then the workpiece is clamped, and finally the machine tool is started. The insert 101 then processes the workpiece according to the pre-programmed procedure (see reference). Figure 6 );

[0031] Furthermore, during the machining process of the workpiece by the blade 101, two tilted image sensors 203 are used to continuously detect the cutting edge of the blade 101. During the detection process, the cleaning component is used to clean the cutting edge of the blade 101 to reduce the accumulation of debris, thereby improving the image acquisition clarity of the cutting edge of the blade by the image sensor 203.

[0032] When the two image sensors 203 transmit the captured blade images to the graphics processing unit server 302, the graphics processing unit server 302 uses parallel computing platforms such as CUDA (Compute Unified Device Architecture) and specialized image processing libraries (such as the GPU-accelerated version of OpenCV) to perform parallel preprocessing on the images. First, denoising is performed by removing noise generated during image acquisition through algorithms such as Gaussian filtering and median filtering. Then, grayscale processing is performed to convert the color image to a grayscale image, reducing the amount of data and facilitating subsequent processing. For the preprocessed image, the graphics processing unit server 302 uses its parallel computing advantage to accelerate the feature extraction process and inputs the extracted image features into the trained model (such as a classification model, object detection model, semantic segmentation model, etc.) for inference. Taking object detection as an example, the GPU in the GPU server will calculate in parallel the matching degree between the image features and the various classifications and location predictions in the model, and output information such as the category, location, and confidence of the target in the image. In the entire analysis and processing of the image, the graphics processing unit server 302 will make full use of its massive parallel computing capabilities to accelerate the forward propagation process of the model and improve the inference speed.

[0033] After the image is analyzed and processed by the graphics processing unit server 302, the analysis results are transmitted to the controller 304. The controller 304 judges the analysis results according to the preset program. When the judgment result exceeds the set threshold, it will use the wireless signal transmitter 308 to send a wireless signal to the PLC control unit of the CNC machine tool. After the CNC machine tool receives the signal, it will display an alarm message on the display screen of the control panel, which will then be used to warn the operator that the tool needs to be changed. Therefore, by setting the detection component, under the analysis of the analysis component, continuous detection of the cutting edge is realized during the processing of the cutting tool 101, thereby reducing the risk of damaged cutting edges not being replaced in time due to negligence in observing the cutting tool 101, thus improving the timeliness of the replacement of the cutting tool 101, and further ensuring the processing accuracy of the workpiece.

[0034] Example 2

[0035] Please see Figure 4 and Figure 5This embodiment further illustrates Example 1. The mounting hole 306 in the figure is provided with a cleaning assembly for cleaning the blade 101 and the transparent protective tube 202. The cleaning assembly includes a fixing plate 401 fixedly connected to the bottom wall of the mounting hole 306. The fixing plate 401 is connected to a fan 402 through a fixing ring. The air outlet of the fan 402 is connected to two air supply pipes 403 through a connecting pipe. The two fixing boxes 201 are inclinedly provided with jet pipes 404 on the side near the transparent protective tube 202. The ends of the two air supply pipes 403 away from the fan 402 are provided through the blade 102 and connected to the jet pipes 404. The ends of the two jet pipes 404 near the transparent protective tube 202 are connected to branch pipes 405.

[0036] It should be noted here that: by setting up the cleaning component, the air force of the fan 402 is used to make the gas flow from the two air supply pipes 403 to the jet pipe 404 and the branch pipe 405, which is used to blow and clean the blade part of the blade 101 and the surface of the transparent protective tube 202, thereby improving the image acquisition clarity of the blade 101 blade by the image sensor 203.

[0037] Please see Figure 5 The jet pipe 404 and the branch pipe 405 shown in the figure are respectively equipped with filter plates 406 at one end;

[0038] It should be noted that the filter plate 406 is designed to protect the air jet pipe 404 and the branch pipe 405, preventing workpiece machining debris from clogging the air jet pipe 404 and the branch pipe 405.

[0039] Example 3

[0040] Please see Figure 3 This embodiment is a further explanation of other embodiments. The side wall of the knife bar 102 in the figure is provided with an air inlet, and the air inlet is provided with a waterproof and breathable valve 5.

[0041] It should be noted that the waterproof and breathable valve 5 mainly utilizes a special polymer waterproof and breathable membrane material. This membrane has a large number of micropores, with a pore size smaller than the size of water droplets in water vapor but larger than the diameter of gas molecules. Therefore, gas molecules can freely pass through the micropores, while water droplets in water vapor cannot pass through due to their large size. Thus, under the action of the waterproof and breathable valve 5, external gas can enter the mounting hole 306, while external water vapor will not enter the mounting hole 306. This provides a gas source for the fan 402 while protecting the safety of the electrical components inside the mounting hole 306.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool edge chipping detection device in a tool blade machining process, comprising: a blade (101) mounted on a tool bar (102); characterized in that it further comprises: a detection assembly provided on the tool bar (102) for detecting the edge of the blade (101) during the machining process; the detection assembly comprises a fixed box (201) fixedly connected to the opposite two side walls of the tool bar (102), the two fixed boxes (201) are obliquely provided with transparent protective tubes (202), and the two transparent protective tubes (202) are provided with image sensors (203) therein, and the tool bar (102) is provided with an analysis assembly for receiving and analyzing the images collected by the two image sensors (203).

2. A tool edge chipping detection device for use in a tool bit machining process according to claim 1, characterized in that: the analysis assembly comprises a mounting hole (306) opened on the side of the tool bar (102) away from the blade (101), the bottom wall of the mounting hole (306) is connected with a mounting plate (301) through a plurality of screws, the mounting plate (301) is provided with a graphic processing unit server (302), the two image sensors (203) are respectively electrically connected with the graphic processing unit server (302) through connecting wires (303), and the mounting plate (301) is further provided with a controller (304), a power management unit (305) and a wireless signal transmitter (308). The graphic processing unit server (302), the controller (304) and the wireless signal transmitter (308) are electrically connected with the power management unit (305), and the graphic processing unit server (302) and the wireless signal transmitter (308) are electrically connected with the controller (304).

3. A tool edge chipping detection device for use in a tool bit machining process according to claim 2, characterized in that: The side of the mounting hole (306) away from the blade (101) is connected with a protective cover plate (307) through a plurality of screws.

4. A tool edge chipping detection device for use in a tool bit machining process according to claim 3, characterized in that: The mounting hole (306) is provided with a cleaning assembly for cleaning the blade (101) and the transparent protective tube (202), the cleaning assembly comprises a fixed plate (401) fixedly connected to the bottom wall of the mounting hole (306), the fixed plate (401) is connected with a fan (402) through a fixed ring, the air outlet end of the fan (402) is connected with two air supply pipes (403) through a connecting pipe, and the side of the two fixed boxes (201) close to the transparent protective tube (202) is obliquely provided with a gas jet pipe (404). The ends of the two air supply pipes (403) away from the fan (402) are arranged through the tool bar (102) and connected with the gas jet pipe (404), and the ends of the two gas jet pipes (404) close to the transparent protective tube (202) are connected with tapping pipes (405).

5. A tool edge chipping detection device for use in a tool bit machining process according to claim 4, characterized in that: One end of the gas jet pipe (404) and the tapping pipe (405) is respectively provided with a filter plate (406).

6. A tool edge chipping detection device for use in a tool bit machining process according to claim 5, characterized in that: The side wall of the tool bar (102) is provided with an air inlet hole, and the air inlet hole is provided with a waterproof air valve (5).

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