Dotting device for DC power line test

Abstract

The invention relates to the technical field of electronic detection equipment, and discloses a DC power line testing and dotting device which structurally comprises a conveying device, a positioning mechanism, a console, a testing and dotting device body and an anti-deviation mechanism. The device can prevent a power line from moving during testing, improves the testing accuracy, can be suitable for positioning and clamping power lines of different shapes by adjusting the positions of a V-shaped plate and an L-shaped plate on a special-shaped piece, can drive a rotating block connected with the piston end to swing front and back by means of front-back stretching of the piston end of an air cylinder, and improves the testing accuracy. The gear and the chain are driven to rotate synchronously, and the bearing seat of the rotating shaft located at the other end of the rotating block is driven to rotate synchronously, so that the angles of the clamping blocks are adjusted to be clamped with the workbench, the position of the workbench can be fixed, and the situation that the clamping between the gear and the chain is loosened, consequently, the workbench deviates, and the testing dotting effect is affected is prevented.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of electronic detection equipment, and particularly relates to a DC power line test dotting device. BACKGROUND

[0002] As an indispensable component in electronic equipment, the production quality of the DC power line is directly related to the safety and performance of the equipment, so in the production process of the DC power line, the electrical performance such as conduction and polarity of the DC power line needs to be tested, and the products that pass the test are marked with dots for identification. Based on the above, the current method is to test and dot manually, that is, the operator holds a multimeter and other instruments to test the power line one by one, and then marks with an oily pen or a dotting gun, but this method has the following disadvantages: low test efficiency, slow manual operation, and non-uniform dotting position, depth and shape, which affects the appearance of the product. Therefore, the DC power line test dotting device is provided to overcome the above defects. SUMMARY

[0003] The application aims to overcome the defects of the prior art and provide a DC power line test dotting device capable of automatically testing and dotting the DC power line.

[0004] To solve the above technical problems, the application adopts the following technical scheme: A DC power line test dotting device, which comprises a conveying device, a motor set, a positioning mechanism, a control console and a test dotting device, the conveying device is provided with the motor set, the conveying device is provided with the positioning mechanism on the side, the positioning mechanism is provided with the control console on one side, and the control console is provided with the test dotting device capable of testing and dotting the DC power line.

[0005] In a specific embodiment, the control console is electrically connected with the motor set, the positioning mechanism and the test dotting device, and can be driven by the control console.

[0006] In a specific embodiment, the conveying device comprises a rack, an anti-deviation mechanism, a drive gear, a chain belt, a driven gear and a processing table set, the rack is provided with the processing table set on the top surface, the rack is provided with the anti-deviation mechanism on the side wall, the rack is provided with the drive gear and a plurality of driven gears at four corners respectively, the drive gear is connected with the output end of the motor set, the drive gear is engaged with the chain belt, the chain belt passes through a plurality of driven gears under the drive of the drive gear, and the chain belt is connected with the processing table set on the outside.

[0007] In one specific implementation, the anti-deviation mechanism comprises a cylinder, a rotating block, a rotating shaft, a clamping block, and a bearing seat. The cylinder is mounted on the rack through a mounting seat. The piston end of the cylinder is rotatably connected with the rotating block. The other end of the rotating block is fixed with the rotating shaft. The two ends of the rotating shaft are mounted on the bearing seat. The rotating shaft is provided with a plurality of clamping blocks at equal distances.

[0008] In one specific implementation, the processing table set comprises a guide rail, a workbench, a fixing block, a clamping groove, and a non-slip pattern. The guide rail is mounted on the rack. A plurality of workbenches are slidingly fitted on the guide rail. The spacing between the workbenches is the same. The inner side of each workbench is fixed with a fixing block connected with a chain belt. The side of each workbench away from the fixing block is provided with a clamping groove. The top surface of each workbench is connected with a non-slip pattern. The non-slip pattern is arranged on the workbench in a spreading manner.

[0009] In one specific implementation, the positions of the clamping blocks correspond to the positions of the workbenches. That is, when the test dotting device tests the power lines on a group of workbenches, the clamping blocks can be at the same positions as the corresponding workbenches.

[0010] In one specific implementation, the bottom of the workbench is symmetrically provided with a plurality of rollers. The rollers are in contact with and slidingly fitted on the guide rail.

[0011] In one specific implementation, the positioning mechanism comprises a base plate, a lifting cylinder, a clamping mechanism, and a special-shaped assembly. The bottom of the base plate is connected with the lifting cylinder. The lifting cylinder is located on the rack and the piston end penetrates the rack and is connected with the base plate. The base plate is provided with the clamping mechanism. The clamping mechanism is provided with the special-shaped assembly.

[0012] In one specific implementation, the clamping mechanism comprises a jacking cylinder, a linkage block, a rotating seat, a first sliding seat, a sliding rail seat, a first connecting rod, a sliding block, a sliding rail, a second connecting rod, and a second sliding seat. The piston end of the jacking cylinder is connected with the linkage block. One end of the linkage block is rotatably fitted with the rotating seat. The other end of the linkage block is rotatably fitted with the first sliding seat. The other side of the first sliding seat is rotatably fitted with the first connecting rod. The other end of the first connecting rod is connected with the sliding block. The sliding block is located on the sliding rail which is located on the base plate. The other end of the sliding block is rotatably fitted with the second connecting rod. The other end of the second connecting rod is connected with the second sliding seat. The bottom of the second sliding seat and the first sliding seat are slidingly fitted with the sliding rail seat. The sliding rail seat is mounted on the base plate.

[0013] In one specific implementation, the special-shaped assembly includes clamps, first gears, second gears, rubber rods, a motor and special-shaped pieces, the clamps are symmetrically provided with two groups and are connected with first sliding seats and second sliding seats respectively, the first gears are rotatably connected on the two groups of clamps through bearings, the second gears are engaged on one side of the two first gears, the two second gears are connected through rubber rods, one of the first gears is connected with the motor, the motor is installed on the clamps, and the opposite sides of the two first gears are installed with special-shaped pieces.

[0014] In one specific implementation, V-shaped plates and L-shaped plates are installed on the special-shaped pieces, the V-shaped plates and the L-shaped plates are placed in an up-down position, and the two groups of L-shaped plates are symmetrically arranged.

[0015] In one specific implementation, the rubber rods are provided with bearings at the head and tail ends to be connected with the second gears on both sides, and the middle sections of the rubber rods are made of elastic plastic material.

[0016] In one specific implementation, a machine vision system is installed on the console, and the machine vision system is installed directly above the workbench.

[0017] In one specific implementation, the machine vision system is built-in with an industrial camera, which can automatically identify the plug type of the DC power cord.

[0018] In one specific implementation, an illumination system is installed on the machine vision system.

[0019] According to the above technical scheme, the DC power cord testing and dotting device has the following advantages: (1) The conveying device, the positioning mechanism, the testing and dotting mechanism and the discharging are integrated in one body, so that the production testing and dotting of the DC power cord are realized automatically, the work efficiency is improved, and the labor cost is reduced.

[0020] (2) The positioning mechanism is additionally arranged on the conveying device, the special-shaped pieces can clamp the power cord by moving the two groups of clamps, the movement of the power cord during testing is prevented, the testing accuracy is improved, and the positioning and clamping of the power cord of different shapes can be realized by adjusting the positions of the V-shaped plates and the L-shaped plates on the special-shaped pieces.

[0021] (3) The anti-deviation mechanism is arranged on the conveying device, the front and rear stretching and shrinking of the piston end of the air cylinder can drive the rotation block connected therewith to swing forward and backward, and synchronously drive the bearing seat of the rotating shaft at the other end of the rotation block to rotate, so as to adjust the angle of the clamping blocks and the clamping of the workbench, fix the position of the workbench, prevent the clamping loosening between the gear and the chain from causing the deviation of the workbench, and affect the effect of test dotting.

[0022] (4) The anti-slip lines are arranged on the top surface of the workbench in a diffusion manner, which can prevent the power cord placed on the workbench from falling off when the workbench moves.

[0023] (5) The machine vision system is arranged on the conveying device, the DC power cord is positioned by the vision system, and the production and processing coordinates are produced, so as to improve the accuracy of the probe during testing, avoid the error during manual visual inspection, and improve the qualified rate of the product. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings: Figure 1 It is a structure schematic view of a DC power cord test dotting device in the embodiment of the present application; Figure 2 It is a structure schematic view of a conveying device in the embodiment of the present application; Figure 3 It is a structure schematic view of an anti-deviation mechanism in the embodiment of the present application; Figure 4 It is a structure schematic view of a processing table group in the embodiment of the present application; Figure 5 It is a cooperation schematic view of a workbench and a guide rail in the embodiment of the present application; Figure 6 It is a structure schematic view of a positioning mechanism in the embodiment of the present application; Figure 7 It is a structure schematic view of a clamping mechanism in the embodiment of the present application; Figure 8 It is a structure schematic view of a special-shaped assembly in the embodiment of the present application; Figure 9 It is a structure schematic view of a special-shaped part in the embodiment of the present application; Figure 10 It is a structure schematic view of a machine vision system in the embodiment of the present application.

[0025] In the figure: conveying device-1, motor set-2, positioning mechanism-3, control console-4, test dotting device-5, rack-11, anti-deviation mechanism-12, drive gear-13, chain belt-14, driven gear-15, processing station group-16, air cylinder-121, rotating block-122, rotating shaft-123, clamping block-124, bearing seat-125, guide rail-161, workbench-162, fixed block-163, clamping groove-164, non-slip pattern-165, roller-166, bottom plate-31, lifting air cylinder-32, clamping mechanism-33, special-shaped assembly-34, jacking air cylinder-61, linkage block-62, rotating seat-63, first sliding seat-64, slide rail seat-65, first connecting rod-66, sliding block-67, slide rail-68, second connecting rod-69, second sliding seat-70, clamping plate-341, first gear-342, second gear-343, rubber rod-344, motor-345, special-shaped part-346, V-shaped plate-81, L-shaped plate-82, machine vision system-41, lighting system-42. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0027] Embodiment one: please refer to Figures 1-5 The specific embodiments of the present application are as follows: A DC power line test dotting device, which comprises a conveying device 1, a motor set 2, a positioning mechanism 3, a control console 4 and a test dotting device 5. The motor set 2 is installed on the conveying device 1. The positioning mechanism 3 is arranged beside the conveying device 1. The control console 4 is arranged on one side of the positioning mechanism 3. The test dotting device 5 capable of testing and dotting the DC power line is installed on the control console 4.

[0028] Please refer to Figure 1 The control console 4 is electrically connected with the motor set 2, the positioning mechanism 3 and the test dotting device 5, and can be driven through the control console 4.

[0029] Please refer to Figure 2The conveying device 1 includes a frame 11, an anti-deviation mechanism 12, a drive gear 13, a chain belt 14, driven gears 15, and a processing table assembly 16. The processing table assembly 16 is installed on the top surface of the frame 11 and can convey the power cord. An anti-deviation mechanism 12 is installed on one side wall of the frame 11 and can fix the position of the processing table assembly 16 to prevent it from deviating. A drive gear 13 and several driven gears 15 are installed at the four corners of the frame 11. The drive gear 13 is connected to the output end of the motor assembly 2 and can be driven by the motor assembly 2. A chain belt 14 meshes with the drive gear 13 and passes through several driven gears 15 under the drive of the drive gear 13. The outer side of the chain belt 14 is connected to the processing table assembly 16 and can drive the processing table assembly 16 to move synchronously during operation.

[0030] Please see Figure 3 The anti-deviation mechanism 12 includes a cylinder 121, a rotating block 122, a rotating shaft 123, a locking block 124, and a bearing seat 125. The cylinder 121 is mounted on the frame 11 via a mounting base. The piston end of the cylinder 121 is rotatably connected to the rotating block 122. The other end of the rotating block 122 is fixed to the rotating shaft 123. Both ends of the rotating shaft 123 are mounted on the bearing seat 125 and can rotate on the bearing seat 125. Several locking blocks 124 are installed at equal intervals on the rotating shaft 123.

[0031] Please see Figure 3 By extending and retracting the piston end of the cylinder 121, the rotating block 122 connected to it can be driven to swing back and forth, and simultaneously drive the bearing seat 125 of the rotating shaft 123 located at the other end of the rotating block 122 to rotate, thereby adjusting the angular position of several locking blocks 124.

[0032] Please see Figures 4-5 The processing table assembly 16 includes a guide rail 161, a worktable 162, a fixing block 163, a slot 164, and anti-slip textures 165. The guide rail 161 is mounted on the frame 11, and several worktables 162 are slidably fitted on the guide rail 161. The spacing between the worktables 162 is the same. The inner side of each worktable 162 is fixed with a fixing block 163 connected to the chain belt 14, so that it can move with the chain belt 14. A slot 164 is provided on the side of each worktable 162 away from the fixing block 163. The top surface of each worktable 162 is connected with anti-slip textures 165. The anti-slip textures 165 are arranged in a diffused pattern on the worktable 162, which can play an anti-slip role for the power cord placed on the worktable 162 and prevent the power cord from falling off when it moves with the worktable 162.

[0033] Please see Figure 3The positions of several locking blocks 124 correspond to the positions of several worktables 162. That is, when the test marking device 5 tests the power lines on a set of worktables 162, the locking blocks 124 can be in the same position as the corresponding worktables 162.

[0034] Please see Figure 5 The bottom of the worktable 162 is symmetrically equipped with several rollers 166. The rollers 166 contact and slide with the guide rail 161, which can increase the stability of the worktable 162 when sliding on the guide rail 161.

[0035] Example 2: Please refer to Figures 6-9 The specific embodiments of the present invention are as follows: Please see Figure 6 The positioning mechanism 3 includes a base plate 31, a lifting cylinder 32, a clamping mechanism 33, and a non-circular component 34. The base plate 31 is fixed on the frame 11. The bottom of the base plate 31 is connected to the lifting cylinder 32, which is also located on the frame 11. The piston end passes through the frame 11 and is connected to the base plate 31, which can drive the base plate 31 to move up and down. The base plate 31 is equipped with a clamping mechanism 33 that can clamp and fix the power cord. The clamping mechanism 33 is equipped with a non-circular component 34, which can clamp DC power cords of different shapes.

[0036] Please see Figure 7 The clamping mechanism 33 includes a lifting cylinder 61, a linkage block 62, a rotating seat 63, a first sliding seat 64, a slide rail seat 65, a first connecting rod 66, a slider 67, a slide rail 68, a second connecting rod 69, and a second sliding seat 70. The piston end of the lifting cylinder 61 is connected to the linkage block 62. One end of the linkage block 62 is rotatably engaged with the rotating seat 63, and the other end of the linkage block 62 is rotatably engaged with the first sliding seat 64. The other side of the first sliding seat 64 is rotatably engaged with the first connecting rod 66. The other end of the first connecting rod 66 is connected to the slider 67, which is located on the slide rail 68, and the slide rail 68 is located on the base plate 31. The other end of the slider 67 is rotatably engaged with the second connecting rod 69, and the other end of the second connecting rod 69 is connected to the second sliding seat 70. The bottom of both the second sliding seat 70 and the first sliding seat 64 are slidably engaged with the slide rail seat 65, which is mounted on the base plate 31.

[0037] Please see Figures 6-7 By extending and retracting the lifting cylinder 61, the linkage block 62 connected to it can rotate in both directions on the rotating seat 63, thereby driving the first sliding seat 64 connected to its other end to move back and forth on the slide rail seat 65. Under the connection of the first connecting rod 66 and the second connecting rod 69, the second sliding seat 70 on one side is simultaneously driven to slide back and forth, thereby adjusting the distance between the first sliding seat 64 and the second sliding seat 70.

[0038] Please see Figure 8 The irregular component 34 includes a clamping plate 341, a first gear 342, a second gear 343, a rubber rod 344, a motor 345, and an irregular part 346. Two sets of clamping plates 341 are symmetrically arranged and connected to the first sliding seat 64 and the second sliding seat 70 respectively. The first gear 342 is rotatably engaged on both sets of clamping plates 341 through bearings. The second gear 343 is meshed on one side of each of the two first gears 342. The two second gears 343 are connected to each other through the rubber rod 344. One of the first gears 342 is connected to the motor 345 and is driven to rotate by the motor 345. The motor 345 is mounted on the clamping plate 341. The irregular part 346 is mounted on the opposite side of each of the two first gears 342.

[0039] Please see Figures 8-9 The irregular part 346 is equipped with a V-shaped plate 81 and an L-shaped plate 82. The V-shaped plate 81 and the L-shaped plate 82 are placed vertically, and the two sets of L-shaped plates 82 are symmetrically arranged. When the two sets of L-shaped plates 82 are close to each other, they can form a long rectangle, which is convenient for positioning the plug end of the power cord.

[0040] Please see Figures 8-9 The rubber rod 344 has bearings at both ends that can be connected to the second gears 343 on both sides. The middle section of the rubber rod 344 is made of elastic plastic material, which can deform when subjected to external force, but easily recover after the external force is removed. It can stretch and deform as the two sets of clamps 341 move.

[0041] Please see Figures 8-9 The motor 345 drives a set of first gears 342 connected to its output end to rotate. With the meshing between the first gear 342 and the second gear 343, the second gear 343 meshing with it will rotate synchronously. Under the linkage of the rubber rod 344, the two sets of second gears 343 and the first gear 342 at the other end will rotate, thereby adjusting the position of the V-shaped plate 81 and L-shaped plate 82 on the irregular part 346 to suit the positioning and clamping of power cords of different shapes.

[0042] Based on the above embodiments, the specific working principle is as follows: When it is necessary to test and mark the DC power line during processing, the DC power line is placed on the processing table 16 of the conveying device 1. The anti-slip texture 165 on the worktable 162 can prevent the DC power line from slipping and falling when it moves with the conveying device 1. Then the power line to be tested is conveyed to the test marking device 5. When the processing table 162 moves to the test marking device 5 for testing, the piston end of the cylinder 121 extends and retracts back and forth, causing the rotating block 122 connected to it to swing back and forth. Simultaneously, the bearing seat 125 of the rotating shaft 123 located at the other end of the rotating block 122 rotates, thereby causing several locking blocks 124 to engage with the slots 164 on the worktable 162, which can prevent the worktable 162 from sliding or shifting on the guide rail 161. Then, the lifting cylinder 61 is driven to extend and retract, causing the linkage block 62 connected to it to rotate on the rotating seat 63. This causes the first sliding seat 64 connected to the other end to move back and forth on the slide rail seat 65. Through the connection of the first connecting rod 66 and the second connecting rod 69, the second sliding seat 70 on one side is simultaneously driven to slide back and forth, thereby adjusting the distance between the first sliding seat 64 and the second sliding seat 70. The power cord can be clamped and fixed by the V-shaped plate 81 on the two side clamping plates 341. Then, the clamped power cord is tested and marked by the test marking device 5. The lifting cylinder 32 can drive the base plate 31 to rise, and then the drive motor 345 drives a set of first gears 342 connected to its output end to rotate. With the meshing between the first gear 342 and the second gear 343, the second gear 343 meshing with it will rotate synchronously. Under the linkage of the rubber rod 344, the two sets of second gears 343 and the first gear 342 at the other end will rotate, thereby adjusting the position of the V-shaped plate 81 and L-shaped plate 82 on the irregular part 346 to suit the positioning and clamping of power cords of different shapes.

[0043] Example 3: Please refer to Figures 6-9 The specific embodiments of the present invention are as follows: Please see Figure 10 The control console 4 is equipped with a machine vision system 41, which is installed directly above the workbench 162 and can visually observe the DC power lines being processed on the workbench 162.

[0044] Please see Figure 10 The machine vision system 41 has a built-in industrial camera that can automatically identify the plug type of the DC power cord, such as round or square, so that the clamping mechanism 33 can clamp the power cord accordingly, ensuring the correctness of the probe test contact. It can also calculate the accurate center coordinates of the test and transmit the calculated coordinates to the test marking device 5 on the control console 4 to ensure the accuracy of the test marking.

[0045] The machine vision system 41 is equipped with an illumination system 42, which can provide uniform all-around illumination, eliminate image shadows when the industrial camera illuminates the power line for identification, and ensure the accuracy of image recognition.

[0046] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A DC power line test marking device, comprising a conveying device (1), a motor assembly (2) located on the conveying device (1), a positioning mechanism (3) disposed beside the conveying device (1), a control console (4) located on one side of the positioning mechanism (3), and a test marking device (5) mounted on the control console (4); characterized in that: The conveying device (1) includes a frame (11), a processing table assembly (16) located on the top surface of the frame (11), an anti-deviation mechanism (12) provided on one side wall of the frame (11), a drive gear (13) and several driven gears (15) installed at the four corners of the frame (11). A chain belt (14) meshes with the drive gear (13). The chain belt (14) passes through several driven gears (15) under the drive of the drive gear (13). The outer side of the chain belt (14) is connected to the processing table assembly (16). The positioning mechanism (3) includes a base plate (31), a lifting cylinder (32) installed at the bottom of the base plate (31), a clamping mechanism (33) located on the base plate (31), and a non-shaped component (34) provided on the clamping mechanism (33). The irregular component (34) includes a clamping plate (341), a first gear (342) for rotating with the bearings of the two sets of clamping plates (341), and a second gear (343) meshing on one side of the two first gears (342). The two second gears (343) are connected by a rubber rod (344). One of the first gears (342) is connected to a motor (345). The motor (345) is mounted on the clamping plate (341). Irregular components (346) are installed on opposite sides of the two first gears (342). The console (4) is equipped with a machine vision system (41), which is mounted directly above the workbench (162).

2. The DC power line testing and marking device according to claim 1, characterized in that: The anti-deviation mechanism (12) includes a cylinder (121), a rotating block (122) rotatably connected to the piston end of the cylinder (121), and a rotating shaft (123) located at the other end of the rotating block (122). The two ends of the rotating shaft (123) are mounted on bearing seats (125), and a number of locking blocks (124) are installed at equal intervals on the rotating shaft (123).

3. The DC power line testing marking device according to claim 1, characterized in that: The processing table assembly (16) includes a guide rail (161) and a plurality of worktables (162) for sliding cooperation with the guide rail (161). The distance between the plurality of worktables (162) is the same. A fixing block (163) is fixed on the inner side of each of the plurality of worktables (162). A slot (164) is provided on the side of each of the plurality of worktables (162) away from the fixing block (163). Anti-slip texture (165) is connected to the top surface of each of the plurality of worktables (162). The anti-slip texture (165) is arranged in a diffused manner on the worktable (162).

4. The DC power line testing and marking device according to claim 2, characterized in that: The positions of some of the card slots (124) correspond to the positions of some of the worktables (162).

5. The DC power line test marking device according to claim 3, characterized in that: The bottom of the workbench (162) is symmetrically equipped with several rollers (166), which are in contact with and slide with the guide rail (161).

6. The DC power line testing marking device according to claim 1, characterized in that: The clamping mechanism (33) includes a lifting cylinder (61), a linkage block (62) located at the piston end of the lifting cylinder (61), a rotating seat (63) located at one end of the linkage block (62), a first sliding seat (64) installed at the other end of the linkage block (62), a first connecting rod (66) rotatably engaged on the other side of the first sliding seat (64), and a slider (67) connected to the other end of the first connecting rod (66). The slider (67) is located on a slide rail (68), and the slide rail (68) is located on a base plate (31). The other end of the slider (67) is rotatably engaged with a second connecting rod (69). The other end of the second connecting rod (69) is connected to a second sliding seat (70). The bottom of the second sliding seat (70) and the first sliding seat (64) are both slidably engaged with a slide rail seat (65). The slide rail seat (65) is installed on the base plate (31).

7. The DC power line testing and marking device according to claim 1, characterized in that: The irregular part (346) is equipped with a V-shaped plate (81) and an L-shaped plate (82). The V-shaped plate (81) and the L-shaped plate (82) are placed vertically, and the two sets of L-shaped plates (82) are symmetrically arranged. When the two sets of L-shaped plates (82) are close to each other, they can form a long rectangle.

8. The DC power line testing marking device according to claim 1, characterized in that: The machine vision system (41) has an industrial camera built in and can automatically identify the plug type of the DC power cord.

9. A DC power line testing and marking device according to claim 1, characterized in that: The machine vision system (41) is equipped with a lighting system (42).

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