A brush plate electrode detection pipeline and a detection method

Abstract

The present application relates to the technical field of brush plate detection, in particular to a kind of brush plate electrode detection assembly line and detection method.It includes work platform, work platform is sequentially provided with two stamping detection table from left to right, a welding station, four unified detection table, an outline detection table and a dust absorption table, the lower side of stamping detection table, welding station, unified detection table, outline detection table is provided with positioning fixture, brush plate body is placed on positioning fixture.The present application detects the spring force by unified detection table, ensures that the force of each spring to push carbon brush meets the requirements, ensures the normal use of brush plate, and the four unified detection table is arranged to detect the spring corresponding to carbon brush, to ensure that the pressure of carbon rod in corresponding carbon brush on current collector ring is the same, so as to achieve the same wear degree of corresponding carbon rod, ensure that corresponding carbon rod can form complete loop with current collector ring, avoid the situation that the two are inconsistent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brush plate detection, in particular to a brush plate electrode detection assembly line and detection method. BACKGROUND

[0002] Reference Figure 1 And Figure 2 In the production process of the brush plate, a pair of carbon brushes are installed on the brush plate, the inside of the carbon brush is slidably installed with a carbon rod, one side of the carbon rod is provided with a spring, and two plug-in terminals are installed on the brush plate.

[0003] When assembling, the plug-in terminals are fixed on the brush plate body by a punch, and then the worker manually assembles the carbon brush and spring structure on the brush plate. After manual assembly, the machine needs to be assembled again to ensure the accuracy of each component installation. Currently, when stamping the carbon brush, a press is used to directly stamp and fix multiple carbon brushes. This processing method is fast, but it cannot achieve precise stamping. Because the corresponding carbon brushes need to ensure the horizontal effect of stamping, if the angle and direction of stamping between the corresponding carbon brushes are different, it is easy to cause problems in the contact between the carbon brush and the collector ring in the later stage, and even affect the normal use of the motor. At the same time, it is necessary to ensure the pressure between the carbon brush and the collector ring. Too small pressure can easily cause poor contact, and too large pressure can easily increase mechanical wear. Therefore, the spring also needs to be detected to ensure the normal use of the brush plate in the later stage. At the same time, the electrical continuity between the brush plates, the welding of the plug-in terminals and the wires, the stability of the plug-in terminal installation, etc. all need to be detected separately.

[0004] In order to achieve the effect of overall detection and speed up the production efficiency of the brush plate, the present application provides a brush plate electrode detection assembly line and detection method. SUMMARY

[0005] The present application aims to provide a brush plate electrode detection assembly line and detection method to solve the problems raised in the background art.

[0006] To achieve the above object, one of the objects of the present application is to provide a brush plate electrode detection pipeline, which comprises a work platform, two stamping detection tables, a welding table, four unified detection tables, an appearance detection table and a dust absorption table are sequentially arranged from left to right on the work platform, and a plurality of carrying mechanical claws are arranged on the work platform, the lower side of the stamping detection table, the welding table, the unified detection table and the appearance detection table is provided with a positioning jig, the brush plate body is placed on the positioning jig, the two stamping detection tables stamp the carbon brush shell in an interleaved manner, the welding table welds the plug-in terminal and the wire together, the unified detection table detects the spring in an interleaved manner, detects the stability of the plug-in terminal and the on-off of the circuit, the appearance detection table detects the appearance of the brush plate body, and the dust absorption table is used for absorbing the impurities and debris on the brush plate body.

[0007] As a further improvement of the technical solution, the upper side of the positioning jig is provided with a containing groove matched with the shape of the brush plate body, clamping grooves are arranged on both sides of the containing groove, and two limiting grooves are arranged at the bottom of the containing groove, the limiting grooves are matched with the shape of the protective sleeve, when the protective sleeve is placed in the limiting groove, the axes of the two carbon brushes are perpendicular to the corresponding side walls of the clamping grooves, and two rod holes penetrating through the positioning jig are arranged on the containing groove, and the two rod holes are located below the corresponding carbon brushes.

[0008] As a further improvement of the technical solution, the stamping detection table comprises a stamping frame fixed on the upper side of the work platform, two stamping cylinders are fixed on the top of the stamping frame in a left-right symmetrical manner, the piston rods of the stamping cylinders extend downward and are fixed with pressing plates, the lower sides of the two pressing plates are fixed with pressing blocks, the two pressing blocks are arranged in a central symmetry with the central axis of the positioning jig, and the two pressing blocks press the two carbon brushes on the same straight line, and the other stamping detection table presses the other two carbon brushes.

[0009] As a further improvement of the technical solution, the welding table comprises a welding frame fixed on the work platform, a welding moving cylinder is fixed on the upper side of the welding frame, the piston rod of the welding moving cylinder extends downward and is fixed with a moving plate, the lower side of the moving plate is sequentially fixed with a bottom plate and an adjusting box, a fixed welding frame is fixed at the position close to one end of the lower side of the adjusting box, a first cylinder is fixed at the other end of the lower side of the adjusting box, one end of the piston rod of the first cylinder is fixed with a welding moving plate, a vertical welding rod arranged vertically is fixed on the side close to the welding moving plate of the lower end of the fixed welding frame through a clamping plate, an inclined welding rod arranged obliquely is fixed on the side close to the fixed welding frame of the one end of the welding moving plate through a clamping plate, the lower end of the inclined welding rod is located directly above the two plug-in terminals, and the lower end of the vertical welding rod is located directly above the connection between the plug-in terminal and the wire.

[0010] As a further improvement of the technical solution, the unified detection table comprises a detection frame fixed on the working platform, a downward moving cylinder is installed on the upper side of the detection frame, one end of the piston rod of the downward moving cylinder extends downward and is fixed with a downward moving plate, the lower side of the downward moving plate is fixed with a pressing rod symmetrically in front and back, a pressing cover rod is slidably installed on the lower side of the pressing rod, a spring is installed on the pressing cover rod, the spring pushes the pressing cover rod downward, the pressing cover rod is located above the contact position of the brush plate body and the side wall of the containing groove, and the downward moving of the downward moving plate and the pressing cover rod presses and covers the position where the brush plate body and the containing groove are in contact.

[0011] As a further improvement of the technical solution, the lower side of the downward moving plate is fixed with a second cylinder symmetrically left and right, one end of the piston rod of the second cylinder is fixed with a translation plate, the lower side of the translation plate is fixed with a strain gauge type force sensor, the detection ends of the two strain gauge type force sensors are arranged close to each other, and a carbon rod pull rod is fixed at the end portions; during the downward movement of the downward moving plate, the carbon rod pull rod moves between the two corresponding carbon rods, and the strain gauge type force sensor is driven to move by the second cylinder, so that the carbon rod pull rod drives the carbon rod to move, and the strain gauge type force sensor detects the thrust of the spring on the carbon rod when the carbon rod moves.

[0012] One side of the detection frame is fixed with a fixed table, the positioning jig is installed on the fixed table, the bottom of the fixed table is fixed with a fourth cylinder, one end of the piston rod of the fourth cylinder is fixed with a push rod connected with the lead wire, the position of the push rod corresponds to that of the protective sleeve, and the upward movement of the push rod pushes one of the plug-in terminals in the protective sleeve upward.

[0013] One of the rod holes is inserted with a metal conductive rod, and the metal conductive rod is in contact with a carbon brush electrically connected with the push rod.

[0014] As a further improvement of the technical solution, the four unified detection tables are divided into two groups, the unified detection tables in each group detect two carbon brushes, a rotating table is arranged between the two groups of unified detection tables, the rotating table is used to change the position of the brush plate body, the rotating table comprises a rotating support fixed on the working platform, a rotating receiving table is rotatably connected to the upper side of the rotating support, a rotating cylinder for driving the rotating receiving table to rotate is installed on the lower side of the rotating support, a rhombus-shaped receiving block is fixed on the upper side of the rotating receiving table, a placing groove matched with the shape of the brush plate body is arranged on the upper side of the receiving block, a positioning opening corresponding in shape and position to the protective sleeve is formed in the bottom of the placing groove, and the four side edges of the receiving block are respectively perpendicular to the central axes of the carbon brushes.

[0015] As a further improvement of the technical solution, the appearance detection table comprises an appearance detection frame fixed on the working platform, a shooting box is installed on one side of the appearance detection frame, the positioning jig is arranged directly below the shooting box, an exposure lamp and a camera are arranged in the shooting box.

[0016] The vacuuming station includes a suction pipe fixed on the work platform. A vacuuming frame is fixed to the upper end of the suction pipe. A groove that matches the shape of the brush plate and is connected to the suction pipe is opened on the upper side of the vacuuming frame. A vacuum cleaner is connected to the lower end of the suction pipe through a pipe.

[0017] As a further improvement to this technical solution, the handling mechanical gripper includes a gear and rack slide slidably disposed on the upper side of the work platform, and a track and a gear rack disposed on the lower side of the gear and rack slide. The track and gear rack are fixed on the work platform. An electric push rod is fixed on the upper side of the gear and rack slide. A fifth cylinder is fixed to one end of the piston rod of the electric push rod through a mounting bracket. A sixth cylinder is mounted on the piston rod of the fifth cylinder. The handling mechanical gripper handles the brush plate.

[0018] The second objective of this invention is to provide a detection method for a brush plate electrode detection production line as described above, comprising the following steps:

[0019] S1. Place the assembled brush plate in the first stamping test station. The third carbon brush shell and the second carbon brush shell are perpendicular to the side walls of the clamping slots on both sides of the positioning fixture. The stamping test station presses the first carbon brush shell and the fourth carbon brush shell. After pressing, the transport robot claw moves them to another stamping test station. The other stamping test station presses the third carbon brush shell and the second carbon brush shell. The transport robot claw discards the brush plate that fails to pass the pressing test.

[0020] S2. The handling robotic gripper transports the stamped qualified brush plate to the welding table. The welding table welds the electrical terminals and wires together. After welding, the handling robotic gripper transports the brush plate to the unified testing table.

[0021] S3. The first two unified testing stations test the spring pressure of the second and third carbon brush housings and test whether the plug-in terminal near the third carbon brush housing is installed stably. At the same time, the metal conductive rod contacts the bottom of the fourth carbon brush housing and performs a continuity test on the third and fourth carbon brush housings and the tested plug-in terminal.

[0022] After the inspection is completed, the brush plate is moved to the rotating table by the transport robotic gripper. The rotating table rotates the brush plate at an angle so that the first and fourth carbon brush housings are perpendicular to the clamping slots of the positioning fixture. Then, the transport robotic gripper moves the brush plate to the two unified testing tables. The two unified testing tables test the spring pressure of the first and fourth carbon brush housings and check whether the plug-in terminal near the first carbon brush housing is installed stably. At the same time, the metal conductive rod contacts the bottom of the second carbon brush housing to perform a continuity test on the first carbon brush housing, the second carbon brush housing and the tested plug-in terminal. After the inspection is completed, the brush plate is moved by the transport robotic gripper.

[0023] S4. Unqualified brush plates are selected by the transport robotic gripper, while qualified brush plates are transported to the shape inspection station. The shape inspection station performs image recognition on the surface of the brush plates. During the recognition process, the transport robotic gripper flips the brush plates so that the shape inspection station can recognize both sides of the brush plates. After recognition, unqualified brush plates are selected by the transport robotic gripper, while qualified brush plates are transported to the dust collection station. The dust collection station adsorbs and removes dust and impurities from the brush plates. During the impurity removal process, the transport robotic gripper flips the brush plates so that the dust collection station can collect dust from both sides of the brush plates. After dust collection is completed, the transport robotic gripper removes the brush plates.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In this brush plate electrode testing production line and testing method, two stamping testing stations are used to stamp each group of carbon brushes to ensure that the pressure between the corresponding carbon brushes is the same, thus ensuring the contact effect between the carbon rod and the collector ring in the later stage. At the same time, the soldering station melts the solder clasp connecting the plug terminal and the wire to make a stable connection between the plug terminal and the wire, ensuring the electrical connection between multiple carbon brushes.

[0026] 2. In this brush plate electrode testing production line and testing method, the spring force is tested using a unified testing station to ensure that the force of each spring pushing the carbon brush meets the requirements, ensuring the normal use of the brush plate. At the same time, four unified testing stations are set up to test the springs of the corresponding carbon brushes to ensure that the pressure of the carbon rods on the slip rings in the corresponding carbon brushes is the same. This ensures that the wear degree of the corresponding carbon rods is the same, and that the corresponding carbon rods can form a complete circuit with the slip rings, avoiding inconsistencies and extending the service life of the motor. In addition, two of the four unified testing stations test the same springs, and the other two test the remaining springs, thereby speeding up the overall spring testing speed of the production line.

[0027] 3. In the electrode testing production line and method for this brush plate, during the spring testing process, the unified testing station pushes the plug-in terminal by moving the push rod upward to test the stability of the plug-in terminal installation. At the same time, when the push rod pushes the plug-in terminal, the metal conductive rod and the carbon brush electrically connected to the plug-in terminal are electrically connected, thereby testing the electrical continuity between the plug-in terminal and the two corresponding carbon brushes. This allows for comprehensive testing of the brush plate, improving the quality of the brush plate production and accelerating the production rate of the brush plate.

[0028] 4. In this brush plate electrode testing production line and testing method, the carbon brushes are stamped using a stamping testing station, the terminals and wires are welded using a welding station, the springs are tested using a unified testing station, the stability of the terminals is tested, the electrical continuity between the carbon brushes is tested, the appearance is inspected using an appearance testing station, and the dust is cleaned using a dust collection station. This achieves integrated testing and assembly of the brush plate, speeds up the production of the brush plate, improves the assembly accuracy of the brush plate, and ensures that the brush plate can be used normally. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the upper side structure of the detection brush plate of the present invention;

[0030] Figure 2 This is a schematic diagram of the lower structure of the detection brush plate of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall production line structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the stamping inspection table with the brush plate of the present invention;

[0033] Figure 5 This is a schematic diagram of the stamping inspection table structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the welding station structure of the present invention;

[0035] Figure 7 for Figure 6 A magnified structural diagram at point A;

[0036] Figure 8 This is a schematic diagram of the structure of the unified testing station with the brush plate of the present invention;

[0037] Figure 9 This is one of the schematic diagrams of the unified testing station structure of the present invention;

[0038] Figure 10 This is the second schematic diagram of the unified testing station structure of the present invention;

[0039] Figure 11for Figure 10 A magnified structural diagram at point B;

[0040] Figure 12 for Figure 10 A magnified structural diagram at point C;

[0041] Figure 13 This is a schematic diagram of the positioning fixture structure of the present invention;

[0042] Figure 14 This is a schematic diagram of the rotating stage structure for placing the brush plate according to the present invention;

[0043] Figure 15 This is a schematic diagram of the rotary table structure of the present invention;

[0044] Figure 16 This is a schematic diagram of the shape inspection stage structure of the present invention;

[0045] Figure 17 This is a schematic diagram of the vacuum cleaner platform structure of the present invention;

[0046] Figure 18 This is a schematic diagram of the handling mechanical gripper structure of the present invention.

[0047] The meanings of the labels in the diagram are as follows:

[0048] 1. Working platform; 11. Material drop basket; 12. Belt conveyor; 13. Positioning fixture; 131. Holding trough; 132. Limiting groove; 133. Rod hole; 14. Fixed platform;

[0049] 2. Stamping inspection table; 21. Stamping frame; 22. Stamping cylinder; 23. Pressure plate; 24. Pressure block; 25. Mounting block;

[0050] 3. Welding table; 31. Welding frame; 32. Moving plate; 33. Base plate; 34. Adjustment box; 35. Fixed welding frame; 351. Vertical welding rod; 36. First cylinder; 37. Welding moving plate; 371. Inclined welding rod; 38. Welding moving cylinder;

[0051] 4. Unified testing platform; 41. Testing frame; 42. Lowering cylinder; 43. Lowering plate; 44. Second cylinder; 45. Strain gauge force sensor; 46. Carbon rod tie rod; 47. Third cylinder; 471. Push rod; 48. Fourth cylinder; 481. Metal conductive rod; 482. Push rod; 49. Pressure rod; 491. Pressing rod;

[0052] 5. Rotary table; 51. Rotary support; 52. Rotary receiving platform; 53. Rotary cylinder; 54. Receiving block; 55. Positioning port;

[0053] 6. Appearance inspection table; 61. Appearance inspection frame; 62. Shooting box;

[0054] 7. Vacuum cleaning table; 71. Vacuum cleaning rack; 72. Support plate; 73. Protective casing; 74. Suction pipe;

[0055] 8. Handling gripper; 81. Gear rack and pinion slide; 82. Electric push rod; 83. Fifth cylinder; 84. Sixth cylinder;

[0056] 9. Brush plate; 91. First carbon brush housing; 92. Second carbon brush housing; 93. Third carbon brush housing; 94. Fourth carbon brush housing; 95. Power terminal; 96. Protective sleeve. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] Example. Reference. Figure 1 and Figure 2During the production process of the brush plate, pairs of carbon brushes are installed on the brush plate body 9. In this solution, four carbon brushes are installed, including a first carbon brush shell 91, a second carbon brush shell 92, a third carbon brush shell 93, and a fourth carbon brush shell 94. Carbon rods are slidably installed inside the first carbon brush shell 91, the second carbon brush shell 92, the third carbon brush shell 93, and the fourth carbon brush shell 94. A spring is provided on one side of the carbon rod, and the spring pushes one end of the carbon rod to move towards the middle of the brush plate body 9. The first carbon brush shell 91 and the second carbon brush shell 92 form one group, and the third carbon brush shell 93 and the fourth carbon brush shell 94 form another group. The carbon brushes inside the first carbon brush shell 91 and the second carbon brush shell 92 are connected by wires. The first carbon brush shell 91 and the fourth carbon brush shell 94 are on the same center line, and the second carbon brush shell 92 and the third carbon brush shell 93 are on the same center line. That is, the first carbon brush shell 91 and the fourth carbon brush shell 94, as well as the second carbon brush shell 92 and the third carbon brush shell 93, are all centrally symmetrically arranged.

[0061] Meanwhile, two electrical terminals 95 are installed between the first carbon brush housing 91 and the third carbon brush housing 93. One of the electrical terminals 95 is connected to the carbon brush inside the first carbon brush housing 91 via a wire, and the other electrical terminal 95 is connected to the carbon brush inside the third carbon brush housing 93 via a wire. A protective sleeve 96 is fixed on the lower side of the brush plate 9, outside the two electrical terminals 95. One side of the protective sleeve 96 is flat, and the protective sleeve 96 protects the electrical terminals 95 inside.

[0062] During assembly, the connector 95 is machine-stamped and fixed to the brush plate 9. Then, workers manually assemble the carbon brushes and springs onto the brush plate 9. The connector 95 and wires are secured together with solder clips. After manual assembly, the machine reassembles the components to ensure accurate installation. Currently, multiple carbon brushes are stamped and fixed using a press, but this method cannot achieve precise stamping because the corresponding carbon brushes, such as the first carbon brush housing 91, the fourth carbon brush housing 94, the second carbon brush housing 92, and the third carbon brush housing 93, all require precise horizontal stamping. If the angles and directions of the stamping between the first carbon brush housing 91 and the fourth carbon brush housing 94, or between the second carbon brush housing 92 and the third carbon brush housing 93, are different, it can easily lead to problems in the contact between the carbon brush and the slip ring later on, and may even affect the normal use of the motor. At the same time, it is necessary to ensure the pressure between the carbon brush and the slip ring. If the pressure is too low, it will easily cause poor contact, and if the pressure is too high, it will easily aggravate mechanical wear. Therefore, the spring also needs to be tested to ensure the normal use of the brush plate. In addition, it is also necessary to test the electrical continuity between the brush plates, the welding of the plug terminal 95 and the wire, and the stability of the plug terminal 95 installation. All of these need to be tested separately.

[0063] Please seeFigures 3-18 As shown, one of the objectives of this embodiment is to provide a brush plate electrode testing production line, including a working platform 1. From left to right, the working platform 1 is provided with two stamping testing stations 2, one welding station 3, four unified testing stations 4, one shape testing station 6, and one dust collection station 7. Several handling mechanical claws 8 are provided on the working platform 1. Positioning fixtures 13 are provided on the lower side of the stamping testing station 2, welding station 3, unified testing station 4, and shape testing station 6. A protective cover can be installed on the upper side of the working platform 1 to protect the above structure between the working platform 1 and the protective cover.

[0064] Material drop baskets 11 are installed on the work platform 1 between the stamping inspection table 2 and the welding table 3, between the welding table 3 and the unified inspection table 4, and between the shape inspection table 6 and the dust collection table 7. The material drop baskets 11 are used to place defective products. At the same time, belt conveyors 12 are installed between the unified inspection table 4 and the shape inspection table 6, and between the shape inspection table 6 and the dust collection table 7. The belt conveyors 12 are used to transport products. The belt conveyor 12 between the unified inspection table 4 and the shape inspection table 6 transports the brush plates for maintenance, and the belt conveyor 12 between the shape inspection table 6 and the dust collection table 7 transports the brush plates to the next process.

[0065] refer to Figure 13 As shown, the upper side of the positioning fixture 13 has a receiving groove 131 that matches the shape of the brush plate 9. The brush plate 9 is placed in the receiving groove 131, and the edge of the brush plate 9 and the edge of the receiving groove 131 are at the same height. Clamping grooves are provided on both sides of the receiving groove 131. The two clamping grooves are symmetrically arranged, and the sidewalls of the two clamping grooves are parallel to each other. Two limiting grooves 132 are provided at the bottom of the receiving groove 131. The shape of the limiting grooves 132 and the protective sleeve 96 are... When the protective sleeve 96 is placed in the limiting groove 132, the plane on the protective sleeve 96 and the plane in the limiting groove 132 are in contact with each other, thereby limiting the position of the brush plate 9 in the holding groove 131. When the brush plate 9 is placed in the holding groove 131, the axes of the two carbon brushes are perpendicular to the side wall of the clamping groove. At the same time, two rod holes 133 for the through positioning fixture 13 are opened on the holding groove 131, and the two rod holes 133 are respectively located on the lower side of the corresponding carbon brush.

[0066] During testing, the brush plate 9 is placed on the positioning fixture 13. Two stamping test stations 2 perform staggered stamping on the carbon brush housings; one stamping test station 2 stamps the first carbon brush housing 91 and the fourth carbon brush housing 94, while the other stamping test station 2 stamps the second carbon brush housing 92 and the third carbon brush housing 93. (Reference) Figure 4 and Figure 5The stamping inspection table 2 includes a stamping frame 21 fixed on the upper side of the work platform 1. A positioning fixture 13 is fixed on the work platform 1 below the stamping frame 21 by a bracket. Two stamping cylinders 22 are symmetrically fixed on the top of the stamping frame 21. The piston rods of the stamping cylinders 22 extend downward and are fixed with pressure plates 23. A track pair is provided on one side of the pressure plate 23. The track pair restricts the sliding trajectory of the pressure plate 23 to ensure that the pressure plate 23 can move downward stably. Pressure blocks 24 are fixed on the lower side of the two pressure plates 23. The two pressure blocks 24 are fixed to the positioning fixture. The central axis of the fixture 13 is centrally symmetrically arranged, and two pressure blocks 24 press two carbon brushes on the same straight line, while another stamping test station 2 presses two other carbon brushes. The two pressure blocks 24 on the two stamping test stations 2 are in different positions. The two pressure blocks 24 on the first stamping test station 2 press the first carbon brush housing 91 and the fourth carbon brush housing 94 respectively, and the two pressure blocks 24 on the second stamping test station 2 press the second carbon brush housing 92 and the third carbon brush housing 93 respectively.

[0067] Meanwhile, two mounting blocks 25 are fixed on the side wall of the stamping frame 21, with screws and switches threaded on them. During the downward movement of the pressure plate 23, the top of the pressure plate 23 contacts the top of the screw, and the screw blocks the downward movement of the pressure plate 23. In this scheme, when the pressure plate 23 finishes stamping the carbon brush, the top of the screw contacts the lower side wall of the pressure plate 23. At this time, the pressure plate 23 presses against the switch. After the switch is clicked, the piston rod of the stamping cylinder 22 retracts. At the same time, a pressure sensor is installed between the pressure plate 23 and the pressure block 24. The pressure sensor receives the pressure of the pressure block 24 on the carbon brush.

[0068] When the carbon brush is stamped on the stamping test table 2, the stamping force is between 200N and 460N. At this time, the carbon brush is placed in the correct position. If the force of the pressure block 24 pressing the carbon brush is not within this range, it means that the carbon brush is not placed in the correct position or that the carbon brush is missing. At this time, the carbon brush pressing is unsuccessful. Here, the unpressed brush plate is placed into the drop basket 11 between the stamping test table 2 and the welding table 3 by the handling mechanical claw 8.

[0069] After the brush plate on the first stamping inspection table 2 is successfully pressed, the transport robotic gripper 8 moves it to the positioning fixture 13 under the second stamping inspection table 2. After the second stamping inspection table 2 is completed, the transport robotic gripper 8 moves the brush plate to the positioning fixture 13 under the welding table 3. The welding table 3 welds the electrical terminal 95 and the wire together. (Refer to...) Figure 6 and Figure 7As shown, the welding table 3 includes a welding frame 31 fixed on the work platform 1. A positioning fixture 13 is fixed on the work platform 1 below the welding frame 31 via a bracket. A welding moving cylinder 38 is fixed on the upper side of the welding frame 31. The piston rod of the welding moving cylinder 38 extends downward and is fixed to a moving plate 32. A track pair is installed between the moving plate 32 and the welding frame 31, which restricts the vertical movement trajectory of the moving plate 32. A base plate 33 and an adjustment box 34 are fixed sequentially on the lower side of the moving plate 32. A fixed welding frame 35 is fixed near one end on the lower side of the adjustment box 34. A first cylinder 36 is fixed at the other end on the lower side of the adjustment box 34. A welding moving cylinder 35 is fixed at one end of the piston rod of the first cylinder 36. The lower end of the moving plate 37 and the fixed welding frame 35 are fixed with a vertical welding rod 351 by a clamp on one side near the welding moving plate 37. The lower end of the welding moving plate 37 is fixed with an inclined welding rod 371 by a clamp on the other side near the fixed welding frame 35. The lower end of the vertical welding rod 351 is located directly above the electrical terminals 95 and the wire connection. The welding moving plate 37 is moved by the first cylinder 36, so that the lower end of the inclined welding rod 371 is located directly above the two electrical terminals 95. Because of the position of the two electrical terminals 95, the entire welding table 3 is inclined. The welding moving cylinder 38 and the end of the inclined welding rod 371 are connected by wires.

[0070] After the mechanical gripper 8 places the brush plate 9 on the positioning fixture 13, the piston rod of the welding moving cylinder 38 extends downward, driving the moving plate 32, the base plate 33, and the adjusting box 34 to move downward, so that the vertical welding rod 351 presses against the position where the plug terminal 95 and the wire are connected. There is solder at this position. The inclined welding rod 371 presses against the upper side of the plug terminal 95. The energized vertical welding rod 351 and inclined welding rod 371 heat and melt the solder, so that the molten solder covers the position where the plug terminal 95 and the wire are connected. Then the piston rod of the welding moving cylinder 38 moves upward, so that the vertical welding rod 351 and inclined welding rod 371 separate from the brush plate. The molten solder cools and fixes the plug terminal 95 and the wire together. Then the mechanical gripper 8 moves the brush plate to the first or second unified testing station 4.

[0071] This solution uses two stamping testing stations 2 to stamp each group of carbon brushes separately, ensuring that the pressure is the same for each corresponding carbon brush, thus guaranteeing the contact between the carbon rod and the slip ring later. At the same time, a welding station 3 melts the solder clasp connecting the plug terminal 95 and the wire, ensuring a stable connection between the plug terminal 95 and the wire, and ensuring the electrical connection between multiple carbon brushes. Meanwhile, a unified testing station 4 tests the spring force to ensure that the force of each spring pushing the carbon brush meets the requirements, ensuring the normal use of the brush plate.

[0072] The first and second unified testing stations 4 perform the same tests, as do the third and fourth. When the first unified testing station 4 is testing the brush plate, the transport robotic gripper 8 can place the brush plate removed from the welding station 3 onto the second unified testing station 4. Because the unified testing station 4 takes a little longer to test the brush plate than the stamping testing station 2 and the welding station 3, this method can speed up the testing of the brush plate. After the first or second unified testing station 4 has finished testing the brush plate, the transport robotic gripper 8 moves the brush plate to the third or fourth station. The unified testing station 4 uses an alternating testing method to test the elasticity of the springs. This method can speed up the testing of the brush plate, thereby increasing the production speed of the brush plate. At the same time, the unified testing station 4 also tests the stability of the installation of the plug terminal 95 and the continuity of the circuit to check for any problems with the installation of the plug terminal 95. It also checks whether the electrical connection between the plug terminal 95 and the two carbon brushes is normal. This testing ensures the normal use of the brush plate in the future.

[0073] refer to Figures 8-12 As shown, the unified testing table 4 includes a testing frame 41 fixed on the work platform 1. A fixed platform 14 is fixed on one side of the testing frame 41. A positioning fixture 13 is installed on the fixed platform 14 and is located on the lower side of the testing frame 41. A downward displacement cylinder 42 is installed on the upper side of the testing frame 41. One end of the piston rod of the downward displacement cylinder 42 extends downward and is fixed to a downward displacement plate 43. A track pair is installed between the downward displacement plate 43 and the testing frame 41. The track pair restricts the trajectory of the downward displacement plate 43's vertical movement. Pressure rods 49 are symmetrically fixed on the lower side of the downward displacement plate 43. A pressing rod 491 is slidably installed on the lower side of the brush plate 9. A rubber pad is installed at the lower end of the pressing rod 491, and a spring is installed on the pressing rod 491. The spring pushes the pressing rod 491 downward. The pressing rod 491 is located above the contact position between the brush plate 9 and the side wall of the holding tank 131. The lowering plate 43 drives the pressing rod 491 to move down and press the contact position between the brush plate 9 and the holding tank 131. By pressing the side of the brush plate 9 with the two pressing rods 491, the brush plate 9 is fixed on the positioning fixture 13, ensuring that the brush plate 9 will not move.

[0074] A second cylinder 44 is symmetrically fixed to the lower side of the lowering plate 43. A translation plate is fixed to one end of the piston rod of the second cylinder 44, and a strain gauge force sensor 45 is fixed to the lower side of the translation plate. The detection ends of the two strain gauge force sensors 45 are arranged close to each other, and a carbon rod pull rod 46 is fixed to its end. A hook groove adapted to the shape of the carbon rod is opened on the side of the carbon rod pull rod 46 near the bottom of the strain gauge force sensor 45. During the downward movement of the lowering plate 43, the carbon rod pull rod 46 moves between the two corresponding carbon rods and is connected by the second cylinder 44. 4. The strain gauge force sensor 45 is moved, causing the carbon rod tie rod 46 to move the carbon rod. During the movement of the strain gauge force sensor 45, the second cylinder 44 moves back and forth multiple times, keeping the spring in a tightened and relaxed state. The strain gauge force sensor 45 detects the thrust of the spring on the carbon rod when the carbon rod moves. In this way, the pressure of the spring on the carbon rod when the carbon rod extension reaches its maximum and minimum is obtained, which determines whether the pressure of the carbon rod on the slip ring is qualified during the overall use, thereby ensuring that the entire brush plate can be used normally.

[0075] To ensure that the carbon rod in the carbon brush is not stuck, a third cylinder 47 is fixedly installed at both ends of the upper side of the fixed platform 14. A push rod 471 is fixed to one end of the piston rod of the third cylinder 47. The axis of the push rod 471 is perpendicular to the side wall of the clamping groove of the positioning fixture 13, and the height of the push rod 471 is aligned with the carbon rod in the carbon brush. After the pressing rod 491 fixes the position of the brush plate 9, the piston rod of the third cylinder 47 extends, so that one end of the push rod 471 extends into the interior of the carbon brush and pushes out the carbon rod, preventing the carbon rod from getting stuck in the carbon brush and being unable to extend. This ensures that the carbon rod pull rod 46 can contact the carbon rod, thereby ensuring that the unified testing platform 4 can test the spring.

[0076] A fourth cylinder 48 is fixed at the bottom of the fixed platform 14. A push rod 482 for connecting wires is fixed at one end of the piston rod of the fourth cylinder 48. The push rod 482 and the protective sleeve 96 are positioned correspondingly. The push rod 482 moves upward to push one of the plug-in terminals 95 inside the protective sleeve 96. A pressure sensor is installed on the push rod 482. The pressure sensor is used to detect the pushing force of the push rod 482 on the plug-in terminal 95. A metal conductive rod 481 is inserted into one of the rod holes 133. The metal conductive rod 481 is in contact with the carbon brush that is electrically connected to the push rod 482.

[0077] The four unified testing stations 4 are divided into two groups. Each unified testing station 4 in each group tests two carbon brushes. Since the first carbon brush housing 91 and the fourth carbon brush housing 94 are set up correspondingly, and the second carbon brush housing 92 and the third carbon brush housing 93 are set up correspondingly, the first and second unified testing stations 4 test the springs on one side of the second carbon brush housing 92 and the third carbon brush housing 93, and the third and fourth unified testing stations 4 test the springs on one side of the first carbon brush housing 91 and the fourth carbon brush housing 94. However, because there is an angular difference between the central axis corresponding to the first carbon brush housing 91 and the fourth carbon brush housing 94 and the central axis corresponding to the third carbon brush housing 93 and the second carbon brush housing 92, if the brush plate is directly transported to the positioning fixture 13 corresponding to the third or fourth unified testing station 4 using the handling robotic gripper 8, the third and fourth unified testing stations 4 will not be able to test the first carbon brush housing 91 and the fourth carbon brush housing 94.

[0078] Four unified testing stations 4 are set up to test the springs of the corresponding carbon brushes, ensuring that the pressure of the carbon rods on the slip rings in the corresponding carbon brushes is the same. This ensures that the wear degree of the corresponding carbon rods is the same, and that the corresponding carbon rods can form a complete circuit with the slip rings, avoiding inconsistencies and extending the service life of the motor. At the same time, two of the four unified testing stations 4 test the same springs, and the other two test the remaining springs, thereby speeding up the overall spring testing speed of the production line. During the spring testing process on the unified testing stations 4, the push rod 482 moves upward to push the plug terminal 95, testing the stability of the plug terminal 95 installation. At the same time, when the push rod 482 pushes the plug terminal 95, the metal conductive rod 481 and the carbon brush electrically connected to the plug terminal 95 are electrically connected, thereby testing the electrical continuity between the plug terminal 95 and the two corresponding carbon brushes. This comprehensive testing of the brush board improves the quality of the brush board production and speeds up the production rate of the brush board.

[0079] Therefore, a rotating stage 5 is installed between the two sets of unified testing stations 4. The rotating stage 5 is used to change the position of the brush plate 9, for reference. Figure 14 and Figure 15The rotary table 5 includes a rotary support 51 fixed on the work platform 1. A rotary receiving platform 52 is rotatably connected to the upper side of the rotary support 51. A rotary cylinder 53 for driving the rotary receiving platform 52 to rotate is installed on the lower side of the rotary support 51. A diamond-shaped receiving block 54 is fixed on the upper side of the rotary receiving platform 52. The upper side of the receiving block 54 is provided with a placement groove that matches the shape of the brush plate 9. The bottom of the placement groove has a positioning port 55 that corresponds to the shape and position of the protective sleeve 96. The four sides of the receiving block 54 are perpendicular to the central axis of the carbon brush. When the brush plate 9 is placed on the rotary table 5 by the handling claw 8, the position of the positioning port 55 on the receiving block 54 is aligned with the lower side of the brush plate 9 brought by the handling claw 8. With the protective sleeve 96 in position, the transporting mechanical claw 8 places the brush plate 9 on the receiving block 54, and then the rotary cylinder 53 drives the rotary receiving platform 52 to rotate. At this time, the first carbon brush housing 91 and the fourth carbon brush housing 94 rotate to the original positions of the second carbon brush housing 92 and the third carbon brush housing 93. Then, the transporting mechanical claw 8 transports the rotated brush plate 9 to the third or fourth unified testing platform 4, so that the third and fourth unified testing platforms 4 can test the springs on one side of the first carbon brush housing 91 and the fourth carbon brush housing 94, and at the same time test the stability of the other plug terminal 95 and the continuity of the electrical connection between the plug terminal 95 and the first carbon brush housing 91 and the second carbon brush housing 92.

[0080] In this scheme, the brush plates are placed in the same positions on the two stamping inspection tables 2, the welding table 3, and the first and second unified inspection tables 4. The protective sleeve 96 is placed in one of the limiting grooves 32. The rotating table 5 rotates the receiving brush plate, causing the brush plates placed on the third and fourth unified inspection tables 4 to rotate by a certain angle. At this time, the protective sleeve 96 and the other limiting groove 32 correspond to each other. However, because the brush plates are rotated, the positions of the four brushes will change, which will affect the overall production line's inspection of the brush plates. Therefore, when the operator places the brush plate on the first stamping inspection table 2, the axes of the first carbon brush housing 91 and the fourth carbon brush housing 94 are perpendicular to the clamping groove. At this time, the protective sleeve 96 is placed in one of the limiting grooves 132. By limiting the placement position of the brush plate, the entire production line can inspect the brush plate.

[0081] The positions of the fourth cylinder 48 and the metal conductive rod 481 on the third and fourth unified testing stations 4 are adjusted accordingly to match the position of the plug-in terminal 95. After the third and fourth unified testing stations 4 have completed their tests, the transport robotic claw 8 transports the brush plate 9 to the positioning fixture 13 on the underside of the shape inspection station 6. The shape inspection station 6 then performs an appearance inspection on the brush plate 9. Figure 16As shown, the shape inspection station 6 includes a shape inspection frame 61 fixed on the work platform 1. A shooting box 62 is installed on one side of the shape inspection frame 61. The positioning fixture 13 is set directly below the shooting box 62. An exposure lamp and a camera are installed inside the shooting box 62. The exposure lamp provides supplemental light source so that the upper side of the brush plate 9 can be clearly captured by the camera. The camera transmits the captured image to the computer. The software in the computer compares the images to determine whether each part on the brush plate 9 is installed in place and whether there is any damage. After one side of the brush plate 9 is inspected, the transport robotic claw 8 clamps and flips the brush plate 9 so that the camera can capture the other side of the brush plate 9. After the capture is completed, the transport robotic claw 8 transports the brush plate 9 to the vacuum station 7.

[0082] The vacuum cleaning table 7 is used to remove impurities and debris from the brush plate 9. During the spring inspection process, the carbon rod moves back and forth, and carbon dust can easily be generated during this movement. To ensure the cleanliness of the product before it leaves the factory, the vacuum cleaning table 7 is used to absorb impurities and debris, which can improve the product's appearance. (Reference...) Figure 17 As shown, the vacuuming station 7 includes a suction pipe 74 fixed on the work platform 1. A vacuuming frame 71 is fixed to the upper end of the suction pipe 74. A groove that matches the shape of the brush plate 9 and is connected to the suction pipe 74 is opened on the upper side of the vacuuming frame 71. A receiving plate 72 is installed in the groove. The receiving plate 72 can receive and block the brush plate to prevent parts from falling off the brush plate. The lower end of the suction pipe 74 is connected to a vacuum cleaner through a pipe. A protective shell 73 is fixed to the outside of the vacuuming frame 71. The protective shell 73 is used to receive debris splashed out from the vacuuming frame 71.

[0083] During use, the mechanical gripper 8 clamps the brush plate 9 and moves it to the upper side of the vacuum cleaner frame 71, where it is placed. The vacuum cleaner then absorbs the debris on the brush plate 9. After the debris is absorbed on one side of the brush plate 9, the mechanical gripper 8 clamps and flips the brush plate 9, and then places it on the vacuum cleaner frame 71. The vacuum cleaner then absorbs the debris to ensure thorough removal of impurities. The cleaned brush plate is then placed on the conveyor belt 12 on one side via the mechanical gripper 8, and the conveyor belt 12 transports the brush plate to the next process.

[0084] In this solution, each of the several transport grippers 8 has a corresponding function. Specifically, one transport gripper 8 is positioned between the first and second stamping inspection tables 2, transporting the brush plate 9 from the first stamping inspection table 2 to the second stamping inspection table 2. Another transport gripper 8 is positioned between the second stamping inspection table 2 and the welding table 3, transporting the brush plate 9 from the second stamping inspection table 2 to the welding table 3. A third transport gripper 8 is positioned between the welding table 3 and the first unified inspection table 4, transporting the brush plate 9 from the welding table 3 to either the first or second unified inspection table 4. Finally, a third transport gripper 8 is positioned between the second unified inspection table 4 and the rotating... A transporting mechanical claw 8 is installed between the turntables 5. This transporting mechanical claw 8 transports the brush plate 9 onto the turntable 5, and after the turntable 5 rotates, it is transported to the third or fourth unified inspection table 4. A transporting mechanical claw 8 is installed between the fourth unified inspection table 4 and the shape inspection table 6. This transporting mechanical claw 8 transports the brush plate 9 onto the shape inspection table 6 and can drive the brush plate 9 to rotate. A transporting mechanical claw 8 is installed between the shape inspection table 6 and the dust collection table 7. This transporting mechanical claw 8 transports the brush plate 9 on the shape inspection table 6 to the dust collection table 7 and can drive the brush plate 9 to rotate, and then places it onto the belt conveyor 12.

[0085] Among them, reference Figure 18As shown, the handling gripper 8 includes a gear and rack slide 81 slidably mounted on the upper side of the work platform 1, and a track and gear rack mounted on the lower side of the gear and rack slide 81. The track and gear rack are fixed on the work platform 1. An electric push rod 82 is fixed on the upper side of the gear and rack slide 81. One end of the piston rod of the electric push rod 82 is fixed to a fifth cylinder 83 via a mounting bracket. A sixth cylinder 84 is mounted on the piston rod of the fifth cylinder 83. The handling gripper 8 handles the brush plate 9. The gear and rack slide 81 drives the sixth cylinder 84 to move on the work platform 1. The electric push rod 82 drives the sixth cylinder 84 to approach the brush plate 9 placed on the positioning fixture 13. The fifth cylinder 83 drives the sixth cylinder 84 to move up and down. The sixth cylinder 84 in the handling gripper 8 on one side of the stamping inspection table 2, welding table 3, and unified inspection table 4 is... In use, the gear and rack slide 81 drives the sixth cylinder 84 to move to the position corresponding to the positioning fixture 13. Then, the electric push rod 82 drives the sixth cylinder 84 to approach the positioning fixture 13. At this time, the gripper of the sixth cylinder 84 opens. The fifth cylinder 83 drives the sixth cylinder 84 to move upward. Then, the gripper of the sixth cylinder 84 moves to both sides above the brush plate 9. Then, the fifth cylinder 83 drives the sixth cylinder 84 to move downward, so that the gripper enters the clamping groove. Then, the gripper of the sixth cylinder 84 clamps the brush plate 9 through the clamping groove. Then, the fifth cylinder 83 drives the sixth cylinder 84 to move upward, so that the brush plate 9 leaves the positioning fixture 13. Then, the electric push rod 82 drives the sixth cylinder 84 to move away from the positioning fixture 13. When placing the brush plate 9, the operation is reversed, so that the brush plate 9 is placed on the positioning fixture 13.

[0086] The sixth cylinder 84 in the transfer mechanical claw 8 that moves the brush plate 9 on the fourth unified testing platform 4 to the shape testing platform 6 and the transfer mechanical claw 8 that moves the brush plate 9 on the shape testing platform 6 to the dust collection platform 7 are both rotary clamping cylinders. This cylinder can drive the brush plate 9 to flip after clamping it.

[0087] The carbon brushes are stamped using the stamping inspection station 2, the electrical terminals 95 and wires are welded using the welding station 3, the springs are inspected using the unified inspection station 4, the stability of the electrical terminals 95 is tested, the electrical continuity between the carbon brushes is tested, the appearance is inspected using the shape inspection station 6, and the dust is cleaned using the dust collection station 7. This achieves integrated testing and assembly of the brush plate, speeds up the production of the brush plate, improves the assembly accuracy of the brush plate, and ensures that the brush plate can be used normally.

[0088] The second objective of this invention is to provide a detection method for a brush plate electrode detection production line as described above, comprising the following steps:

[0089] S1. The assembled brush plate 9 is placed in the first stamping test table 2. The third carbon brush shell 93 and the second carbon brush shell 92 are perpendicular to the side walls of the clamping grooves on both sides of the positioning fixture 13. The stamping test table 2 presses the first carbon brush shell 91 and the fourth carbon brush shell 94. After pressing, the transport robot 8 transports it to another stamping test table 2. The other stamping test table 2 presses the third carbon brush shell 93 and the second carbon brush shell 92. The transport robot 8 discards the brush plate 9 that fails to pass the pressing test.

[0090] S2. The handling robotic claw 8 transports the stamped qualified brush plate 9 to the position of the welding table 3. The welding table 3 welds the plug-in terminal 95 and the wire together. After the welding is completed, the handling robotic claw 8 transports the brush plate 9 to the unified testing table 4.

[0091] S3 and the first two unified testing stations 4 both test the spring pressure of the second carbon brush housing 92 and the third carbon brush housing 93, and test whether the plug-in terminal 95 near the third carbon brush housing 93 is installed stably. At the same time, the metal conductive rod 481 contacts the bottom of the fourth carbon brush housing 94 to test the continuity of the third carbon brush housing 93, the fourth carbon brush housing 94 and the tested plug-in terminal 95.

[0092] After the test is completed, the brush plate 9 is moved to the rotary table 5 by the transporting claw 8. The rotary table 5 rotates the brush plate 9 so that the first carbon brush housing 91 and the fourth carbon brush housing 94 are perpendicular to the clamping groove of the positioning fixture 13. Then the transporting claw 8 moves the brush plate 9 to the two unified testing tables 4. The two unified testing tables 4 test the spring pressure of the first carbon brush housing 91 and the fourth carbon brush housing 94, and test whether the plug-in terminal 95 near the first carbon brush housing 91 is installed stably. At the same time, the metal conductive rod 481 contacts the bottom of the second carbon brush housing 92 to test the continuity of the first carbon brush housing 91, the second carbon brush housing 92 and the tested plug-in terminal 95. After the test is completed, the brush plate 9 is moved by the transporting claw 8.

[0093] S4. Unqualified brush plates 9 are selected by the transport robotic gripper 8, while qualified brush plates 9 are transported by the transport robotic gripper 8 to the shape inspection table 6. The shape inspection table 6 performs image recognition on the surface of the brush plate 9. During the recognition process, the transport robotic gripper 8 flips the brush plate 9 so that the shape inspection table 6 can image recognize both sides of the brush plate 9. After recognition, unqualified brush plates are selected by the transport robotic gripper 8, while qualified brush plates are transported by the transport robotic gripper 8 to the dust collection table 7. The dust collection table 7 adsorbs and removes dust and impurities from the brush plate 9. During the impurity removal process, the transport robotic gripper 8 flips the brush plate 9 so that the dust collection table 7 can collect dust from both sides of the brush plate 9. After dust collection is completed, the transport robotic gripper 8 removes the brush plate 9.

[0094] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brush plate electrode testing production line, comprising a working platform (1), characterized in that: The work platform (1) is arranged from left to right with two stamping inspection stations (2), one welding station (3), four unified inspection stations (4), one shape inspection station (6), and one dust collection station (7). Several handling mechanical claws (8) are also arranged on the work platform (1). Positioning fixtures (13) are arranged on the lower side of the stamping inspection station (2), welding station (3), unified inspection station (4), and shape inspection station (6). The brush plate (9) is placed on the positioning fixture (13). The two stamping inspection stations (2) stamp the carbon brush shell in an alternating manner. The welding station (3) welds the plug-in terminal (95) and the wire together. The unified inspection station (4) uses an alternating inspection method to test the elasticity of the spring and to test the stability of the plug-in terminal (95) installation and the continuity of the circuit. The shape inspection station (6) performs appearance inspection on the brush plate (9). The dust collection station (7) is used to absorb impurities and debris on the brush plate (9). The stamping test station (2) includes a stamping frame (21) fixed on the upper side of the work platform (1). Two stamping cylinders (22) are symmetrically fixed on the top of the stamping frame (21). The piston rod of the stamping cylinder (22) extends downward and is fixed with a pressure plate (23). A pressure block (24) is fixed on the lower side of the two pressure plates (23). The two pressure blocks (24) are centrally symmetrically arranged with the central axis of the positioning fixture (13). The two pressure blocks (24) press two carbon brushes on the same straight line, and another stamping test station (2) presses two other carbon brushes. The unified testing station (4) includes a testing frame (41) fixed on the working platform (1). A downward cylinder (42) is installed on the upper side of the testing frame (41). One end of the piston rod of the downward cylinder (42) extends downward and is fixed with a downward plate (43). Pressure rods (49) are fixed symmetrically on the lower side of the downward plate (43). A pressing rod (491) is slidably installed on the lower side of the pressure rod (49). A spring is installed on the pressing rod (491). The spring pushes the pressing rod (491) downward. The pressing rod (491) is located above the contact position between the brush plate body (9) and the side wall of the holding tank (131). The downward plate (43) drives the pressing rod (491) to move downward to press the contact position between the brush plate body (9) and the holding tank (131). The four unified testing stations (4) are divided into two groups. Each unified testing station (4) in each group tests two carbon brushes. A rotating stage (5) is set between the two groups of unified testing stations (4). The rotating stage (5) is used to change the position of the brush plate (9). The rotating stage (5) includes a rotating bracket (51) fixed on the working platform (1). A rotating receiving platform (52) is rotatably connected to the upper side of the rotating bracket (51). A rotating cylinder (53) for driving the rotating receiving platform (52) to rotate is installed on the lower side of the rotating bracket (51). A diamond-shaped receiving block (54) is fixed on the upper side of the rotating receiving platform (52). A placement groove that matches the shape of the brush plate (9) is set on the upper side of the receiving block (54). A positioning port (55) corresponding to the shape and position of the protective sleeve (96) is opened at the bottom of the placement groove. The four sides of the receiving block (54) are perpendicular to the central axis of the carbon brush.

2. The brush plate electrode detection production line according to claim 1, characterized in that: The positioning fixture (13) has a holding groove (131) on its upper side that matches the shape of the brush plate (9). Clamping grooves are provided on both sides of the holding groove (131), and two limiting grooves (132) are provided at the bottom of the holding groove (131). The limiting grooves (132) and the protective sleeve (96) are matched in shape. When the protective sleeve (96) is placed in the limiting groove (132), the axes of the two carbon brushes are perpendicular to the side wall of the clamping groove. At the same time, two rod holes (133) that penetrate the positioning fixture (13) are provided on the holding groove (131). The two rod holes (133) are located on the lower side of the corresponding carbon brushes.

3. The brush plate electrode detection production line according to claim 1, characterized in that: The welding station (3) includes a welding frame (31) fixed on the work platform (1). A welding moving cylinder (38) is fixed on the upper side of the welding frame (31). The piston rod of the welding moving cylinder (38) extends downward and is fixed with a moving plate (32). A base plate (33) and an adjustment box (34) are fixed to the lower side of the moving plate (32). A fixed welding frame (35) is fixed near one end of the lower side of the adjustment box (34). A first cylinder (36) is fixed at the other end of the lower side of the adjustment box (34). 6) A welding moving plate (37) is fixed to one end of the piston rod. A vertical welding rod (351) is fixed to the side of the fixed welding frame (35) near the welding moving plate (37) by a clamp. An inclined welding rod (371) is fixed to the side of the welding moving plate (37) near the fixed welding frame (35) by a clamp. The lower end of the inclined welding rod (371) is located directly above the two plug terminals (95). The lower end of the vertical welding rod (351) is located directly above the plug terminals (95) and the wire connection.

4. The brush plate electrode detection production line according to claim 2, characterized in that: The lower side of the moving plate (43) is symmetrically fixed with a second cylinder (44). One end of the piston rod of the second cylinder (44) is fixed with a translation plate. The lower side of the translation plate is fixed with a strain gauge force sensor (45). The detection ends of the two strain gauge force sensors (45) are arranged close to each other, and a carbon rod pull rod (46) is fixed at its end. During the downward movement of the lower plate (43), the carbon rod pull rod (46) moves between two corresponding carbon rods and drives the strain gauge force sensor (45) to move through the second cylinder (44), so that the carbon rod pull rod (46) drives the carbon rod to move. The strain gauge force sensor (45) detects the thrust of the spring to the carbon rod when the carbon rod moves. A fixed platform (14) is fixed on one side of the testing frame (41). The positioning fixture (13) is installed on the fixed platform (14). A fourth cylinder (48) is fixed at the bottom of the fixed platform (14). A push rod (482) for connecting wires is fixed at one end of the piston rod of the fourth cylinder (48). The push rod (482) and the protective sleeve (96) are in corresponding positions. The push rod (482) moves upward to push one of the plug-in terminals (95) inside the protective sleeve (96). A metal conductive rod (481) is inserted into one of the rod holes (133), and the metal conductive rod (481) is in contact with a carbon brush that is electrically connected to the push rod (482).

5. The brush plate electrode detection production line according to claim 1, characterized in that: The shape inspection station (6) includes a shape inspection frame (61) fixed on the work platform (1), a shooting box (62) is installed on one side of the shape inspection frame (61), the positioning fixture (13) is located directly below the shooting box (62), and an exposure lamp and a camera are installed inside the shooting box (62). The vacuuming station (7) includes a suction pipe (74) fixed on the work platform (1). A vacuuming frame (71) is fixed at the upper end of the suction pipe (74). A groove is provided on the upper side of the vacuuming frame (71) that is adapted to the shape of the brush plate (9) and connected to the suction pipe (74). A vacuum cleaner is connected to the lower end of the suction pipe (74) through a pipe.

6. The brush plate electrode detection production line according to claim 1, characterized in that: The transport mechanical claw (8) includes a gear and rack slide (81) slidably disposed on the upper side of the working platform (1) and a track and a gear rack disposed on the lower side of the gear and rack slide (81). The track and the gear rack are fixed on the working platform (1). An electric push rod (82) is fixed on the upper side of the gear and rack slide (81). A fifth cylinder (83) is fixed at one end of the piston rod of the electric push rod (82) through a mounting bracket. A sixth cylinder (84) is installed on the piston rod of the fifth cylinder (83). The transport mechanical claw (8) transports the brush plate (9).

7. A method for detecting brush plates in a brush plate electrode detection production line according to any one of claims 1-6, characterized in that: The methods and steps include the following: S1. Place the assembled brush plate (9) in the first stamping test station (2). The third carbon brush shell (93) and the second carbon brush shell (92) are perpendicular to the side walls of the clamping grooves on both sides of the positioning fixture (13). The stamping test station (2) presses the first carbon brush shell (91) and the fourth carbon brush shell (94). After pressing, the transport robot claw (8) transports it to another stamping test station (2). The other stamping test station (2) presses the third carbon brush shell (93) and the second carbon brush shell (92). The transport robot claw (8) discards the brush plate (9) that fails the pressing test. S2. The handling mechanical claw (8) moves the stamped qualified brush plate (9) to the position of the welding table (3). The welding table (3) welds the plug-in terminal (95) and the wire together. After the welding is completed, the handling mechanical claw (8) moves the brush plate (9) to the unified testing table (4). S3. The first two unified testing stations (4) test the spring pressure of the second carbon brush housing (92) and the third carbon brush housing (93), and test whether the plug-in terminal (95) near the third carbon brush housing (93) is installed stably. At the same time, the metal conductive rod (481) contacts the bottom of the fourth carbon brush housing (94) to perform a continuity test on the third carbon brush housing (93), the fourth carbon brush housing (94) and the tested plug-in terminal (95). After the test is completed, the brush plate (9) is moved by the transporting mechanical claw (8) to the rotary table (5). The rotary table (5) rotates the brush plate (9) so that the first carbon brush housing (91) and the fourth carbon brush housing (94) are perpendicular to the clamping groove of the positioning fixture (13). Then the transporting mechanical claw (8) moves the brush plate (9) to the two unified testing tables (4). The two unified testing tables (4) test the spring pressure of the first carbon brush housing (91) and the fourth carbon brush housing (94), and test whether the plug-in terminal (95) near the first carbon brush housing (91) is installed stably. At the same time, the metal conductive rod (481) contacts the bottom of the second carbon brush housing (92) to conduct a continuity test on the first carbon brush housing (91), the second carbon brush housing (92) and the tested plug-in terminal (95). After the test is completed, the transporting mechanical claw (8) moves the brush plate (9). S4. Unqualified brush plates (9) are selected by the handling mechanical claw (8), and qualified brush plates (9) are transported by the handling mechanical claw (8) to the position of the shape inspection table (6). The shape inspection table (6) performs image recognition on the surface of the brush plate (9). During the recognition process, the handling mechanical claw (8) flips the brush plate (9) so that the shape inspection table (6) can image recognize both sides of the brush plate (9). After recognition, unqualified ones are selected by the handling mechanical claw (8), and qualified ones are transported by the handling mechanical claw (8) to the dust collection table (7). The dust collection table (7) adsorbs and removes the dust and impurities on the brush plate (9). During the impurity removal process, the handling mechanical claw (8) flips the brush plate (9) so that the dust collection table (7) can collect dust from both sides of the brush plate (9). After the dust collection is completed, the handling mechanical claw (8) moves it away.

Images