Conductive slip ring surface microgroove machining device and method based on visual positioning

Abstract

The invention relates to a conductive slip ring surface microgroove machining device and method based on visual positioning, and belongs to the field of advanced manufacturing. The device comprises a visual detection module, an industrial personal computer, a laser range finder, a numerical control machine tool and a clamping tool. The industrial personal computer is used for communicating with the numerical control lathe, the laser range finder and the visual detection module, acquiring acquired information and transmitting a G code; the tool turret on the numerical control machine tool is used for installing the laser range finder, the visual detection module and the tool, the clamping tool is used for installing the conducting rod, and the tailstock should have the jacking pressure adjusting function; the laser range finder is installed on the tool turret through a screw and sends a displacement signal to the industrial personal computer to guide the industrial personal computer to judge the motion state of the machine tool. The device can efficiently and stably collect the surface picture of the microgroove of the conducting rod, replaces manual visual observation, improves the processing efficiency of the microgroove of the conducting rod, is also suitable for processing the microgrooves of various types of conducting rods, has better universality, and saves the design cost and the manufacturing cost.

Description

Technical Field

[0001] The invention relates to a conductive slip ring surface micro-groove processing device and method based on visual positioning, belonging to the field of advanced manufacturing. Background Art

[0002] The conductive rod is a key component of the conductive device of the platform. When processing the ring groove, the conductive rod is affected by the cumulative error. After the conductive rod is glued, the positions of the slip rings are not evenly distributed. Some ring grooves have a position error of about 0.01 to 0.03 mm. When processing the ring groove, it is required to align the tool with the center of each ring groove. At present, this process relies on the operator's vision or the use of a simple magnifying glass to align the tool at the center position, which can easily cause eye fatigue and has low efficiency and cannot meet the model batch production requirements. With the increasing pressure of the conductive rod production task year by year, it is urgent to improve the processing efficiency of the conductive rod to ensure the smooth progress of the model task. Summary of the invention

[0003] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art, to provide a conductive slip ring surface micro-groove processing device and method based on visual positioning, to replace the human eye / magnifying glass to identify the conductive slip ring surface micro-groove, to improve the conductive slip ring groove processing efficiency, and to get rid of the reliance on manual skill level.

[0004] The technical solution of the present invention is: a conductive slip ring surface micro-groove processing device based on visual positioning, the device includes an industrial computer, a CNC lathe, and a visual inspection module; the CNC lathe includes a clamping fixture, a turret, a tool and a tailstock;

[0005] One end of the clamping tool is installed on the CNC machine tool body through the spindle chuck, and the other end is used to clamp one end of the conductive rod, and the tailstock provides a tightening pressure on the other end of the conductive rod;

[0006] The tool and visual inspection module are fixedly installed on the turret. The tool is used to process micro grooves on the surface of the conductive rod slip ring. The visual inspection module is used to take pictures of the conductive rod slip ring and send them to the industrial computer.

[0007] The industrial computer generates a photographic G code and sends it to the CNC machine tool. The camera on the turret is moved to take pictures of the conductive slip ring in sections to obtain a picture of the entire conductive rod. The center position of the slip ring is detected based on the conductive slip ring picture to obtain the coordinates of the slip ring center in the image coordinates. The coordinates of the slip ring center in the image coordinates are converted to the Z-axis coordinates in the machine tool coordinate system. The processing G code is generated by combining the zero point position of the camera and the distance ΔZ of the tool center along the Z-axis direction in the machine tool coordinate system. The processing G code is sent to the CNC lathe.

[0008] The CNC lathe moves the position of the turret according to the processing G code so that the tool is aligned with the center of the conductive rod slip ring for micro-groove processing; the position of the turret is moved according to the photographic G code so that the visual inspection module is aligned with the conductive rod to take pictures.

[0009] Preferably, the machining G code or the photographing G code is a code representing the turret moving distance that can be recognized by a CNC machine tool.

[0010] Preferably, the above-mentioned conductive slip ring surface micro-groove processing device based on visual positioning also includes a laser rangefinder, which is installed on the turret. The laser rangefinder is used to measure the displacement between the laser rangefinder and the side wall of the CNC machine tool body, and guide the industrial computer to judge the motion state of the turret. When the displacement value changes, the industrial computer judges that the turret is in a moving state. When the displacement value remains unchanged, the industrial computer judges that the turret is in a stationary state. When the turret is in a stationary state, a processing G code or a photographic G code is sent to the CNC lathe.

[0011] Preferably, the visual inspection module includes a connecting plate, a pitch angle displacement stage, an up-down linear displacement stage, a front-back linear displacement stage, a camera adapter plate, a light source mounting frame, a light source, a camera, and a lens;

[0012] The connecting plate is fixedly mounted on the turret, the pitch angle translation stage is divided into two parts that can rotate with each other, one part is mounted on the connecting plate, and the other part is connected to the upper and lower linear translation stages, the front and rear linear translation stages are mounted on the upper and lower linear translation stages, the camera adapter plate is mounted on the front and rear linear translation stages, the camera is mounted on the camera adapter plate, the lens is mounted on the camera, the camera and the lens are located in a light source mounting frame, the light source mounting frame is mounted on the camera adapter plate by screws, the light source is mounted on the light source mounting frame, and is facing the lens.

[0013] Preferably, the position of the mounting screw of the light source mounting frame is a long hole, and the mounting position can be adjusted within a certain range.

[0014] Preferably, the adjustment and installation process of the visual inspection module taking pictures of the conductive rod is as follows:

[0015] The first step is to install the conductive rod on the clamping fixture, with the conductive rod placed horizontally;

[0016] The second step is to move the turret of the CNC machine tool to ensure that the visual inspection module (—— is above the conductive rod;

[0017] The third step is to adjust the installation position of the light source mounting bracket on the camera adapter plate, thereby adjusting the position of the light source;

[0018] The fourth step is to adjust the pitch angle translation stage, the up and down linear translation stage, and the front and back linear translation stage respectively, so that the conductive rod is within the field of view of the camera and lens to realize the collection of the conductive slip ring image.

[0019] Preferably, when the conductive rod still cannot be presented in the camera field of view even if the displacement range of the pitch angle displacement stage, the up and down linear displacement stage, and the front and back linear displacement stage is exceeded, repeat steps 2 to 4 until the microgrooves on the surface of the conductive rod can be displayed in the center of the captured image, thus completing the installation and adjustment of the visual inspection module.

[0020] Preferably, the actual distance ΔZ between the camera zero position and the tool center is obtained by the following method:

[0021] In the first step, the CNC machine tool operates the tool to make a groove on the conductive rod sample;

[0022] The second step is to move the turret for a certain distance and use a camera to take pictures including the grooves;

[0023] The third step is to calculate the actual distance ΔZ between the camera zero point and the tool center based on the actual distance ΔP that the turret moves to make the camera capture the groove image and the image pixel distance ΔX between the groove center and the camera zero point.

[0024] Preferably, when the camera is away from the spindle of the CNC lathe relative to the tool:

[0025] ΔZ=ΔP-ΔX

[0026] When the camera is close to the spindle of the CNC lathe relative to the tool:

[0027] ΔZ=ΔP+ΔX

[0028] Where: ΔP is the actual distance the machine tool moves to enable the camera to capture the groove image, and ΔX is the image pixel distance from the groove center to the camera zero point position.

[0029] Another technical solution of the present invention is: a method for machining micro-grooves on the surface of a conductive slip ring based on visual positioning based on the above device, the method comprising the following steps:

[0030] Install the conductive rod on the clamping fixture, place the conductive rod horizontally, start the CNC machine tool spindle, and make the conductive rod rotate at a preset speed;

[0031] The visual inspection module is adjusted and installed, and the tool is installed on the turret;

[0032] Establish the coordinate relationship between the camera and the tool, and calculate the distance ΔZ between the zero position of the camera () and the center of the tool () along the Z-axis direction in the machine tool coordinate system;

[0033] The fourth step is to start the industrial computer to ensure that the communication between the industrial computer, the laser rangefinder and the visual detection module remains normal;

[0034] Start the CNC machine tool, the industrial computer generates a photographic G code and sends it to the CNC machine tool, the camera on the turret is moved, and the pictures of the conductive slip ring are taken in sections to obtain the picture of the entire conductive rod;

[0035] The center position of the slip ring is detected according to the conductive slip ring image to obtain the coordinates of the slip ring center in the image coordinates, and the coordinates of the slip ring center in the image coordinates are converted to the Z-axis coordinates in the machine tool coordinate system. The processing G code is generated by combining the zero point position of the camera and the distance ΔZ of the tool center along the Z-axis direction in the machine tool coordinate system. The processing G code is sent to the CNC lathe to guide the tool to process the micro-groove on the surface of the conductive slip ring.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] (1) The present invention uses a visual positioning device to efficiently and stably collect images of the surface of the conductive rod microgrooves, replacing manual visual observation, thereby improving the processing efficiency of the conductive rod microgrooves;

[0038] (2) The present invention uses a high-magnification industrial camera to image the various sections of the slip ring of the conductive rod, replacing the human eye / magnifying glass to locate the center position coordinates of each section of the slip ring, laying a technical foundation for the machine tool to realize automatic processing of micro-grooves on the surface of the conductive slip ring.

[0039] (3) The present invention is applicable to the micro-groove processing of various types of conductive rods, has good versatility, and saves design costs and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of a conductive slip ring surface micro-groove machining device according to an embodiment of the present invention.

[0041] Figure 2 It is a connection diagram of a conductive slip ring surface micro-groove processing device according to an embodiment of the present invention.

[0042] Figure 3 Schematic diagram of a visual inspection system according to an embodiment of the present invention.

[0043] Figure 4 It is a partial schematic diagram of a visual inspection system according to an embodiment of the present invention (excluding the light source and the light source mounting frame);

[0044] Description of reference numerals:

[0045] 10Industrial control cabinet

[0046] 11Industrial Computer

[0047] 12 Cabinets

[0048] 20 CNC lathes

[0049] 21 Clamping tool

[0050] 22 Dota

[0051] 23 Knives

[0052] 24 tailstock

[0053] 30 Laser rangefinder

[0054] 40 visual inspection modules

[0055] 41 Mounting plate

[0056] 42° pitch angle translation stage

[0057] 43 Up and down linear translation stage

[0058] 44 front and rear linear translation stage

[0059] 45 Camera Adapter Plate

[0060] 46 Light source mounting frame

[0061] 47 Light Source

[0062] 48 Cameras

[0063] 49 lenses DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0065] Figure 1 It is a schematic diagram of the overall structure of the present invention, Figure 2 is a schematic diagram of a visual inspection system of the present invention,

[0066] like Figure 1 and Figure 2 As shown, the present invention provides a conductive slip ring surface micro-groove processing device based on visual positioning, which includes an industrial computer 12, a CNC lathe 20, a visual detection module 40, and a laser rangefinder 30; the CNC lathe 20 includes a clamping fixture 21, a turret 22, a tool 23 and a tailstock 24; the industrial computer 12 is used to communicate with the CNC lathe 20, the laser rangefinder 30, and the visual detection module 40 to obtain collected information and transmit the processing G code. The tool 23 is selected according to the requirements of the conductive slip ring surface micro-groove processing, and the tailstock 24 should have a tightening pressure adjustment function.

[0067] One end of the clamping tool 21 is mounted on the body of the CNC machine tool 20 through the spindle chuck, and the other end is used to clamp one end of the conductive rod, and the tailstock 24 provides a tightening pressure on the other end of the conductive rod;

[0068] The tool 23 and the visual inspection module 40 are fixedly mounted on the turret 22. The tool 23 is used to perform micro-groove processing on the surface of the conductive rod slip ring, and the visual inspection module 40 is used to take pictures of the conductive rod slip ring and send them to the industrial computer 12. The turret 22 should generally have more than 8 tool positions.

[0069] The industrial computer 12 generates a photographic G code and sends it to the CNC machine tool. The camera on the turret is moved to take pictures of the conductive slip ring in sections to obtain a picture of the entire conductive rod. The center position of the slip ring is detected according to the conductive slip ring picture to obtain the coordinates of the slip ring center in the image coordinates, and the coordinates of the slip ring center in the image coordinates are converted to the Z-axis coordinates in the coordinate system of the machine tool 20. Combined with the zero point position of the camera 48 and the distance ΔZ of the center of the tool 23 along the Z-axis direction in the coordinate system of the machine tool 20, a machining G code is generated, and the machining G code is sent to the CNC lathe 20;

[0070] The CNC lathe 20 moves the position of the turret 22 according to the processing G code, so that the tool 23 is aligned with the center of the conductive rod slip ring for micro-groove processing; the position of the turret 22 is moved according to the photographic G code, so that the visual inspection module 40 is aligned with the conductive rod to take pictures.

[0071] The laser rangefinder 30 is installed on the turret 22 by screws, and can communicate with the industrial computer 12, send displacement signals, and guide the industrial computer 12 to judge the motion state of the CNC machine tool 20. The laser rangefinder 30 is used to measure the displacement between the laser rangefinder 30 and the side wall of the body of the CNC machine tool 20, and guide the industrial computer 12 to judge the motion state of the turret 22. When the displacement value changes, the industrial computer 12 judges that the turret 22 is in a moving state. When the displacement value remains unchanged, the industrial computer 12 judges that the turret 22 is in a stationary state. When the turret 22 is in a stationary state, the processing G code or the photographing G code is sent to the CNC lathe 20.

[0072] The machining G code or the photographing G code is a code representing the turret moving distance that can be recognized by the numerical control machine tool 20 .

[0073] like Figure 3 and Figure 4 As shown, the visual inspection module 40 includes a connecting plate 41, a pitch angle displacement stage 42, an up and down linear displacement stage 43, a front and back linear displacement stage 44, a camera adapter plate 45, a light source mounting frame 46, a light source 47, a camera 48, and a lens 49;

[0074] The connecting plate 41 is fixedly mounted on the turret 22 by screws, and the pitch angle displacement stage 42 is divided into two parts that can rotate with each other, one part is mounted on the connecting plate 41 by screws, and the other part is connected to the upper and lower linear displacement stages 43 by screws, and the front and rear linear displacement stages 44 are mounted on the upper and lower linear displacement stages 43 by screws, and the camera adapter plate 45 is mounted on the front and rear linear displacement stages 44 by screws, and the camera 48 is mounted on the camera adapter plate 45 by screws, and the lens 49 is mounted on the camera 48 by a threaded structure, and the camera 48 and the lens are located in the light source mounting frame 46, and the light source mounting frame 46 is mounted on the camera adapter plate 45 by screws, and the light source 47 is mounted on the light source mounting frame 46, facing the lens 49.

[0075] The position of the mounting screw of the light source mounting frame 46 is a long hole, and the mounting position can be adjusted within a certain range.

[0076] The adjustment and installation process of the visual inspection module 40 taking photos of the conductive rod:

[0077] The first step is to install the conductive rod on the clamping fixture 21, with the conductive rod placed horizontally;

[0078] The second step is to move the turret of the CNC machine tool 20 and the slides of each axis to a suitable position to ensure that the visual inspection module 40 is above the conductive rod;

[0079] The third step is to adjust the installation position of the light source mounting frame 46 on the camera adapter plate 45, thereby adjusting the position of the light source 47;

[0080] The fourth step is to adjust the pitch angle displacement stage 42, the up-down linear displacement stage 43, and the front-back linear displacement stage 44 respectively, so that the conductive rod is within the field of view of the camera 48 and the lens 49, so as to realize the collection of the conductive slip ring image.

[0081] When the conductive rod still cannot be presented in the camera field of view even if the displacement range of the pitch angle displacement stage 42, the up and down linear displacement stage 43, and the front and back linear displacement stage 44 is exceeded, repeat the second to fourth steps until the micro-grooves on the surface of the conductive rod can be displayed in the center of the captured image, thus completing the installation and adjustment of the visual inspection module 40.

[0082] The actual distance ΔZ between the zero position of the camera 48 and the center of the tool 23 is obtained by the following method:

[0083] In the first step, the CNC machine tool 20 operates the tool 23 to make a groove on the conductive rod sample;

[0084] In the second step, the turret is moved a certain distance, and a camera 48 is used to take a picture including the groove;

[0085] The third step is to calculate the actual distance ΔZ between the zero point of the camera 48 and the center of the tool 23 based on the actual distance ΔP that the turret moves to make the camera capture the groove image and the image pixel distance ΔX between the center of the groove and the zero point of the camera.

[0086] When the camera 48 is away from the spindle of the CNC lathe 20 relative to the tool:

[0087] ΔZ=ΔP-ΔX

[0088] When the camera 48 is close to the spindle of the CNC lathe 20 relative to the tool:

[0089] ΔZ=ΔP+ΔX

[0090] Where: ΔP is the actual distance the machine tool moves to enable the camera to capture the groove image, and ΔX is the image pixel distance from the groove center to the camera zero point position.

[0091] Based on the above device, the present invention also provides a method for machining micro-grooves on the surface of a conductive slip ring based on visual positioning, the method comprising:

[0092] The first step is to install the conductive rod on the clamping fixture 21, place the conductive rod horizontally, start the spindle of the CNC machine tool 20, and rotate the conductive rod at a preset speed; the preset speed can be 20-40rpm.

[0093] Step 2: The visual inspection module 40 is adjusted and installed, and the tool 23 is installed on the turret 22;

[0094] The third step is to establish the coordinate relationship between the camera 48 and the tool 23, and calculate the distance ΔZ between the zero point position of the camera 48 and the center of the tool 23 along the Z-axis direction of the coordinate system of the machine tool 20;

[0095] The fourth step is to start the industrial computer 12 to maintain normal communication between the industrial computer and the laser rangefinder 30 and the visual detection module 40;

[0096] Step 5: Start the CNC machine tool 20, the industrial computer generates a photographic G code, sends it to the CNC machine tool, moves the camera on the turret, and takes pictures of the conductive slip ring in sections to obtain a picture of the entire conductive rod;

[0097] The sixth step is to detect the center position of the slip ring according to the conductive slip ring image, obtain the coordinates of the slip ring center in the image coordinates, convert the coordinates of the slip ring center in the image coordinates into the Z-axis coordinates in the coordinate system of the machine tool 20, combine the zero point position of the camera 48 and the distance ΔZ between the center of the tool 23 along the Z-axis direction in the coordinate system of the machine tool 20, generate a processing G code, and send the processing G code to the CNC lathe 20 to guide the tool 23 to process the micro-groove on the surface of the conductive slip ring.

[0098] The steps of taking pictures of the conductive slip ring by the camera in sections are as follows: first, the camera is aimed at the head of the conductive rod to take the first section of the slip ring picture, and according to the first section of the slip ring picture, the G code for taking the next section of the slip ring picture is analyzed and sent to the CNC machine tool, the laser rangefinder 30 communicates with the industrial computer 12, sends a displacement signal, and guides the industrial computer 12 to judge the motion state of the CNC machine tool 20. When the displacement value changes, the industrial computer 12 judges that the CNC machine tool is in a moving state, and when the displacement value remains unchanged, the industrial computer 12 judges that the CNC machine tool is in a stationary state; when the industrial computer is in a stationary state, the industrial computer controls the camera to take pictures, and the cycle is repeated until the conductive rod is completely photographed from beginning to end, and the whole rod of the conductive rod is obtained.

[0099] In summary, the present invention not only solves the efficiency problem of micro-groove processing of conductive rods, but also takes into account the versatility of the invention, and can be applied to conductive rods of various models, thus saving production costs.

[0100] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0101] Parts of the present invention that are not described in detail belong to common knowledge among those skilled in the art.

Claims

1. A conductive slip ring surface micro-groove processing device based on visual positioning, characterized in that: It comprises an industrial computer (12), a numerically controlled lathe (20), and a visual inspection module (40); the numerically controlled lathe (20) comprises a clamping tool (21), a turret (22), a tool (23), and a tailstock (24); One end of the clamping tool (21) is mounted on the body of the CNC machine tool (20) through a spindle chuck, and the other end is used to clamp one end of the conductive rod, and the tailstock (24) provides a tightening pressure on the other end of the conductive rod; The tool (23) and the visual inspection module (40) are fixedly mounted on the turret (22); the tool (23) is used to perform micro-groove processing on the surface of the conductive rod slip ring; and the visual inspection module (40) is used to take a picture of the conductive rod slip ring and send it to the industrial control computer (12); The industrial computer (12) generates a photographic G code and sends it to a numerical control machine tool. The camera on the turret is moved to take pictures of the conductive slip ring in sections to obtain a picture of the entire conductive rod. The center position of the slip ring is detected based on the conductive slip ring picture to obtain the coordinates of the slip ring center in the image coordinates. The coordinates of the slip ring center in the image coordinates are converted to Z-axis coordinates in the coordinate system of the machine tool (20). The processing G code is generated by combining the zero point position of the camera (48) and the distance ΔZ between the center of the tool (23) along the Z-axis direction in the coordinate system of the machine tool (20). The processing G code is sent to the numerical control lathe (20); The numerically controlled lathe (20) moves the position of the turret (22) according to the processing G code so that the tool (23) is aligned with the center of the conductive rod slip ring to perform micro-groove processing; and moves the position of the turret (22) according to the photographing G code so that the visual inspection module (40) is aligned with the conductive rod to take a photo.

2. According to the device for processing micro-grooves on the surface of a conductive slip ring based on visual positioning according to claim 1, it is characterized in that: The processing G code or the photographing G code is a code representing the moving distance of the turret which can be recognized by the numerical control machine tool (20).

3. The conductive slip ring surface micro-groove processing device based on visual positioning according to claim 1 is characterized in that: The invention also comprises a laser rangefinder (30), which is mounted on the turret (22) and is used to measure the displacement between the laser rangefinder (30) and the side wall of the body of the numerical control machine tool (20), and to guide the industrial control computer (12) to judge the motion state of the turret (22); when the displacement value changes, the industrial control computer (12) judges that the turret (22) is in a moving state; when the displacement value remains unchanged, the industrial control computer (12) judges that the turret (22) is in a stationary state; when the turret (22) is in a stationary state, a processing G code or a photographing G code is sent to the numerical control lathe (20).

4. The conductive slip ring surface micro-groove processing device based on visual positioning according to claim 1 is characterized in that: The visual inspection module (40) comprises a connecting plate (41), a pitch angle displacement platform (42), an up and down linear displacement platform (43), a front and back linear displacement platform (44), a camera adapter plate (45), a light source mounting frame (46), a light source (47), a camera (48), and a lens (49); The connecting plate (41) is fixedly mounted on the turret (22); the pitch angle displacement platform (42) is divided into two parts that can rotate with each other, one part is mounted on the connecting plate (41), and the other part is connected to the upper and lower linear displacement platforms (43); the front and rear linear displacement platforms (44) are mounted on the upper and lower linear displacement platforms (43); the camera adapter plate (45) is mounted on the front and rear linear displacement platforms (44); the camera (48) is mounted on the camera adapter plate (45); the lens (49) is mounted on the camera (48); the camera (48) and the lens are located in a light source mounting frame (46); the light source mounting frame (46) is mounted on the camera adapter plate (45) by screws; the light source (47) is mounted on the light source mounting frame (46) and faces the lens (49).

5. The conductive slip ring surface micro-groove processing device based on visual positioning according to claim 4 is characterized in that: The position of the mounting screw of the light source mounting frame (46) is a long hole, and the mounting position can be adjusted within a certain range.

6. The conductive slip ring surface micro-groove processing device based on visual positioning according to claim 1 is characterized in that: The adjustment and installation process of the visual inspection module (40) taking photos of the conductive rod: The first step is to install the conductive rod on the clamping fixture (21), with the conductive rod placed horizontally; The second step is to move the turret of the CNC machine tool (20) to ensure that the visual inspection module (40) is above the conductive rod; The third step is to adjust the installation position of the light source mounting frame (46) on the camera adapter plate (45), thereby adjusting the position of the light source (47); The fourth step is to adjust the pitch angle displacement stage (42), the up-down linear displacement stage (43), and the front-back linear displacement stage (44) respectively, so that the conductive rod is within the field of view of the camera (48) and the lens (49), so as to realize the collection of the conductive slip ring image.

7. The device for processing micro-grooves on the surface of a conductive slip ring based on visual positioning according to claim 1, characterized in that: When the conductive rod still cannot be presented in the camera field of view even if the displacement range of the pitch angle adjustment displacement stage (42), the up-down linear displacement stage (43), and the front-back linear displacement stage (44) is exceeded, the second step to the fourth step are repeated until the micro-grooves on the surface of the conductive rod can be displayed in the center of the collected image, thus completing the installation and adjustment of the visual detection module (40).

8. The device for processing micro-grooves on the surface of a conductive slip ring based on visual positioning according to claim 1, characterized in that: The actual distance ΔZ between the zero position of the camera (48) and the center of the tool (23) is obtained by the following method: In the first step, the CNC machine tool (20) operates the tool 23 to make a groove on the conductive rod sample; In the second step, the turret is moved a certain distance, and a camera 48 is used to take a picture including the groove; The third step is to calculate the actual distance ΔZ between the zero point of the camera (48) and the center of the tool (23) based on the actual distance ΔP that the turret moves when the camera captures the groove image and the image pixel distance ΔX between the center of the groove and the zero point of the camera.

9. The device for processing micro-grooves on the surface of a conductive slip ring based on visual positioning according to claim 8, characterized in that: When the camera (48) is away from the spindle of the CNC lathe (20) relative to the tool: ΔZ=ΔP-ΔX When the camera (48) approaches the spindle of the CNC lathe (20) relative to the tool: ΔZ=ΔP+ΔX Where: ΔP is the actual distance the machine tool moves to enable the camera to capture the groove image, and ΔX is the image pixel distance from the groove center to the camera zero point position.

10. A method for machining micro-grooves on the surface of a conductive slip ring based on visual positioning based on the device of claim 1, characterized in that include: The conductive rod is mounted on a clamping fixture (21), the conductive rod is placed horizontally, and the main shaft of the numerical control machine tool (20) is started to rotate the conductive rod at a preset speed; The visual inspection module (40) is adjusted and installed, and the tool (23) is installed on the turret (22); Establishing a coordinate relationship between the camera (48) and the tool (23), and calculating the distance ΔZ between the zero point position of the camera (48) and the center of the tool (23) along the Z-axis direction of the machine tool (20) coordinate system; The fourth step is to start the industrial computer (12) to ensure that the communication between the industrial computer and the laser rangefinder (30) and the visual detection module (40) remains in normal connection; The numerical control machine tool (20) is started, and the industrial computer generates a photographic G code and sends it to the numerical control machine tool, and the camera on the turret is moved to take pictures of the conductive slip ring in sections to obtain a picture of the entire conductive rod; The center position of the slip ring is detected according to the conductive slip ring image to obtain the coordinates of the slip ring center in the image coordinates, and the coordinates of the slip ring center in the image coordinates are converted into Z-axis coordinates in the coordinate system of the machine tool (20). A processing G code is generated by combining the zero point position of the camera (48) and the distance ΔZ of the center of the tool (23) along the Z-axis direction in the coordinate system of the machine tool (20). The processing G code is sent to the CNC lathe (20) to guide the tool (23) to process the micro-grooves on the surface of the conductive slip ring.

Images