Semi-automatic commutator inter-sheet voltage withstanding detection machine

Abstract

The invention relates to a semi-automatic commutator inter-sheet voltage withstanding detector, which relates to the technical field of commutator detection equipment and comprises a workbench, a fixing mechanism mounted on the workbench and a detector mounted on the workbench in a lifting manner and used for detecting a commutator. The blowing clamping mechanism is mounted on the workbench and is used for driving the fixing mechanism to further clamp the commutator; a mounting cavity is formed in the workbench, and the fixing mechanism comprises a clamping plate for clamping the commutator; the blowing clamping mechanism comprises a first air delivery pump mounted in the mounting chamber, an air delivery box communicated with an air delivery port of the first air delivery pump, a telescopic rubber hose communicated with an air outlet of the air delivery box, an air delivery pipe communicated with an air outlet of the telescopic rubber hose and an air bag communicated with an air delivery port of the air delivery pipe; the air bag is connected with the clamping plate so as to drive the clamping plate to further clamp the commutator when the air bag expands. The commutator detection device has the effect that the commutator is fixed more stably when the commutator is detected.

Description

Technical Field

[0001] This invention relates to the field of commutator testing equipment technology, and in particular to a semi-automatic commutator inter-segment withstand voltage testing machine. Background Technology

[0002] The commutator is a crucial component of a motor, and its performance directly affects the motor's operational stability and lifespan. Inter-segment withstand voltage is one of the key technical indicators of a commutator. If the inter-segment withstand voltage fails to meet the requirements, it can lead to faults such as inter-segment short circuits during motor operation, and in severe cases, even burn out the motor. Therefore, the inter-segment withstand voltage performance must be rigorously tested during the commutator manufacturing process.

[0003] Existing commutator segment withstand voltage testing machines include a worktable, a fixing mechanism, and a detector. During operation, the commutator is first placed on the worktable, then the fixing mechanism secures both sides of the commutator, and finally the detector performs withstand voltage testing on the commutator segments.

[0004] In the above structure, when the commutator is placed on the workbench, the two sides of the commutator are clamped only by the fixing mechanism. However, the vibration generated by the operation of the testing machine can easily cause the clamping plates on both sides to move, resulting in unstable clamping and displacement of the commutator, which greatly reduces the accuracy of the test results. Summary of the Invention

[0005] To ensure that the commutator is more stably fixed during testing, this invention provides a semi-automatic commutator inter-segment withstand voltage testing machine.

[0006] This invention provides a semi-automatic commutator inter-segment withstand voltage testing machine, which adopts the following technical solution: A semi-automatic commutator inter-segment withstand voltage testing machine includes a worktable, a fixing mechanism mounted on the worktable for clamping the commutator to be tested, and a detector that is lifted and mounted on the worktable for testing the commutator. It also includes an air-blowing clamping mechanism mounted on the worktable for driving the fixing mechanism to further clamp the commutator. The workbench has an installation chamber, and the fixing mechanism includes a clamping plate for clamping the commutator. The air-blowing clamping mechanism includes a first air pump installed in the installation chamber, an air box connected to the air outlet of the first air pump, a telescopic rubber hose connected to the air outlet of the air box, an air pipe connected to the air outlet of the telescopic rubber hose, and an air bladder connected to the air outlet of the air pipe. The air bladder is connected to the clamping plate so that when the air bladder expands, it drives the clamping plate to further clamp the commutator.

[0007] By adopting the above technical solution, the fixing mechanism clamps the commutator for the first time. Then, by activating the air-blowing clamping mechanism, the airbag is driven to inflate. When the airbag inflates, it drives the clamping plate to further adhere to the commutator, thereby further clamping the commutator and preventing the commutator from moving during the testing process.

[0008] Optionally, the fixing mechanism further includes two first threaded cylinders mounted on the clamping plate, two first threaded rods mounted on the side wall of the mounting chamber and threadedly connected to the two first threaded cylinders, a synchronization structure mounted on the side wall of the mounting chamber and used to drive the two first threaded rods to rotate synchronously, and a first motor mounted on the side wall of the mounting chamber and used to drive the first threaded rods to rotate. The clamping plate is slidably mounted on the worktable. A first compression spring is connected between the airbag and the clamping plate. The first compression spring drives the clamping plate to always tend to approach the commutator and clamp the commutator. When the airbag inflates, it compresses the first compression spring towards the clamping plate to drive the clamping plate to fit against the commutator.

[0009] By adopting the above technical solution, the first motor drives the first threaded rod to rotate, and then the two first threaded rods rotate synchronously through a synchronization structure. At the same time, the rotation of the first threaded rod drives the first threaded cylinder to move, and the movement of the first threaded cylinder drives the clamping plate to move to complete the clamping of the commutator. Meanwhile, the preload of the first compression spring ensures that the clamping plate always maintains a close fit to the commutator. When the airbag inflates, the clamping force is further amplified by compressing the compression spring.

[0010] Optionally, a vertical plate is installed on the workbench, and a dust-blowing mechanism for cleaning dust from the commutator surface is installed on the vertical plate; the dust-blowing mechanism includes a second air pump installed on the vertical plate, a delivery pipe connected to the air inlet of the second air pump, and a nozzle connected to the air outlet of the delivery pipe. The nozzle passes through the vertical plate and is located directly above the workbench; when the commutator is fixed on the workbench, air is blown onto the surface of the commutator through the nozzle to blow away and clean the dust on the surface.

[0011] By adopting the above technical solution, the second air pump is started, and the second air pump delivers air to the delivery pipe through the air outlet. Then, the air in the delivery pipe is delivered to the nozzle through the air outlet of the delivery pipe for spraying. The air sprayed from the nozzle directly acts on the commutator in the positioning groove, blowing off the dust on the surface of the commutator and avoiding the dust from affecting the detection accuracy.

[0012] Optionally, a positioning assembly for preliminary positioning of the commutator is installed on the worktable; the positioning assembly includes a support rod installed on the worktable and a positioning disc installed on the support rod for positioning the commutator. The top of the positioning plate has a positioning groove, and the commutator is installed in the positioning groove for initial positioning. The positioning groove is also used to initially collect the dust blown off by the nozzle.

[0013] By adopting the above technical solution, the positioning plate and positioning groove can quickly achieve the center positioning of the commutator, so that the clamping force of the fixing mechanism is evenly applied to the outer periphery of the commutator, avoiding clamping skew caused by initial positioning deviation. At the same time, the positioning groove can catch the blown dust and prevent the dust from falling onto the worktable.

[0014] Optionally, the installation chamber is equipped with an adsorption mechanism for further collecting the dust blown off by the dust blowing mechanism; the adsorption mechanism includes a dust collection box installed in the installation chamber, a dust suction hood that cooperates with the positioning plate and faces the positioning plate, and a dust suction pipe that connects the dust suction hood and the dust collection box; the air supply box also has an exhaust port, and an exhaust pipe is connected to the exhaust port; The exhaust pipe is connected to the dust suction pipe and is inclined downward toward the dust collection box; the exhaust pipe is provided with a one-way sealing structure for sealing the exhaust port, and the one-way sealing structure opens when the preset air pressure is reached; when the air supply box reaches the preset air pressure, the air inside it enters the dust collection box through the exhaust pipe and forms a negative pressure in the dust suction pipe to attract the dust on the positioning plate.

[0015] By adopting the above technical solution, when the first gas pump delivers gas to the gas box, the gas flows upward through the telescopic rubber hose, causing the airbag to inflate. On the other hand, after the airbag has inflated for a period of time, the gas drives the sealing valve core to move against the resistance of the second compression spring, creating a gap between the sealing valve core and the exhaust pipe inlet for gas to enter. This forces the gas through the exhaust pipe into the dust suction pipe and flows downward to create a negative pressure inside the dust suction pipe. The negative pressure causes external gas to enter through the dust suction pipe, causing the dust suction pipe and dust suction hood to begin suction work, sucking up the dust on the positioning plate and preventing dust accumulation from affecting the test results.

[0016] Optionally, the one-way sealing structure includes a connecting block installed inside the exhaust pipe, a connecting plate installed on the connecting block, a sealing valve core for sealing the exhaust pipe inlet, and a second compression spring connected between the sealing valve core and the connecting plate; the second compression spring drives the sealing valve core to always have a tendency to insert into the exhaust pipe inlet for sealing; A pressure booster is installed inside the exhaust pipe and is located on the side away from the sealing valve core; after the gas enters the exhaust pipe, it is pressurized by the pressure booster to accelerate the gas flow rate.

[0017] By adopting the above technical solution, the second compression spring and the sealing valve core control the opening and closing of the exhaust pipe. Only after the airbag has expanded for a period of time can the sealing valve core be opened to allow gas to enter, thereby ensuring that the air supply box inflates the airbag first and then exhausts the gas through the exhaust pipe. This ensures that the airbag can perform dust suction when it drives the clamping plate to further clamp the commutator. At the same time, the pressurizing component increases the gas flow rate in the exhaust pipe. The high-speed airflow can form a stronger negative pressure in the dust suction pipe, enhancing the ability to adsorb dust in the positioning slot.

[0018] Optionally, the positioning groove is provided with a filter hole, the dust collection cover is installed on the workbench and located directly below the filter hole; the air outlet of the dust collection box is connected to an air outlet pipe, and the air inlet of the air outlet pipe is equipped with a dustproof mesh plate; a dust collection frame is installed inside the dust collection box. When the suction pipe and the suction hood are working together, the dust collected inside the positioning groove is drawn into the dust collection box through the filter hole. Then the gas is discharged through the exhaust pipe, and the dust falls into the dust collection frame for further collection after being intercepted by the dustproof mesh plate.

[0019] By adopting the above technical solution, when the dust suction pipe and dust suction hood start to suction, the dust initially collected in the positioning slot is sucked in through the filter hole. Then, both gas and dust are transported to the dust collection box through the dust suction hood and dust suction pipe. At this time, the gas is discharged through the exhaust pipe, while the dust falls into the dust collection frame for further collection under the interception of the dustproof mesh plate.

[0020] Optionally, the upright plate is equipped with a lifting mechanism for driving the detector to fit against the commutator so that the detector can detect the commutator. The lifting mechanism includes a second threaded rod passing through the upright plate, a second threaded cylinder threaded to the second threaded rod, a lifting plate mounted on the second threaded cylinder and connected to the detector, and a second motor mounted on the upright plate for driving the second threaded rod to rotate.

[0021] By adopting the above technical solution, the second motor drives the second threaded rod to rotate, which in turn drives the lifting plate to rise and fall smoothly, so that the detector and the commutator are in contact so that the detector can detect the commutator.

[0022] Optionally, the lifting platform is equipped with a locking assembly for fixing the detector to the lifting platform; The locking assembly includes a rotating disk mounted on the lifting plate, a rotating rod hinged to the rotating disk, a support plate mounted on the lifting plate, and a locking plate mounted on the rotating rod and sliding on the support plate to lock the detector to the lifting plate; A third compression spring is connected between the locking plate and the support plate. The third compression spring drives the locking plate to always have the tendency to insert into the detector and lock the detector and the lifting plate.

[0023] By adopting the above technical solution, the locking assembly locks the detector through the locking plate. When the detector needs to be replaced, the locking plate can be driven out of the detector simply by rotating the rotating disk, which facilitates the replacement of the detector. At the same time, the continuous preload of the third compression spring can ensure that the locking plate always locks the detector, preventing the detector from loosening during the detection process.

[0024] Optionally, a telescopic guide column is provided between the upright plate and the lifting plate, the telescopic guide column including two telescopic units that extend and retract with each other to guide and limit the movement of the lifting plate; The detector passes through the support plate so that, driven by the third compression spring, the locking plate is inserted into the detector, thereby locking the detector to the lifting plate.

[0025] By adopting the above technical solution, the telescopic guide column restricts the rotational freedom of the lifting plate, so that the lifting plate can only move in the vertical direction, avoiding tilting of the lifting plate during the lifting process, thereby making the detector more stable when moving downward and ensuring that the detector and the commutator surface are in close contact.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The fixing mechanism clamps the commutator for the first time. Then, the air-blowing clamping mechanism is activated to drive the airbag to inflate. When the airbag inflates, it drives the clamping plate to further adhere to the commutator to achieve further clamping of the commutator, thereby preventing the commutator from moving during the testing process. 2. Start the second air pump. The second air pump delivers air to the delivery pipe through the air inlet. Then, the air in the delivery pipe is delivered to the nozzle through the air outlet of the delivery pipe. The air ejected from the nozzle directly acts on the commutator in the positioning slot, blowing off the dust on the surface of the commutator to prevent the dust from affecting the detection accuracy. 3. When the first gas pump delivers gas to the gas box, the gas flows upward through the telescopic rubber hose, causing the gas bag to inflate. Simultaneously, after the gas bag has inflated for a period of time, the gas forces the sealing valve core to move against the resistance of the second compression spring, creating a gap between the sealing valve core and the exhaust pipe inlet for gas to enter. This forces the gas through the exhaust pipe into the dust suction pipe and downwards, creating a negative pressure within the dust suction pipe. This negative pressure allows external gas to enter through the dust suction pipe, causing the dust suction pipe and dust suction hood to begin suction work, removing dust from the positioning plate and preventing dust accumulation from affecting the test results. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a semi-automatic commutator inter-segment withstand voltage testing machine. Figure 2 This is a cross-sectional view of a semi-automatic commutator inter-segment withstand voltage testing machine; Figure 3 This is a structural diagram of the positioning component; Figure 4 This is a schematic diagram of the soot blowing mechanism; Figure 5 This is a structural diagram of the fixed mechanism; Figure 6 This is a cross-sectional view of the air-blowing clamping mechanism; Figure 7 yes Figure 6 A magnified view of part A in the middle; Figure 8 This is a cross-sectional view of the adsorption mechanism; Figure 9 This is a cross-sectional view of the lifting mechanism and locking components.

[0028] The parts referred to by the numbers in the above attached figures are as follows: 1. Workbench; 11. Vertical plate; 12. Moving hole; 13. Mounting chamber; 14. Detector; 15. Inspection door; 16. Placement chamber; 2. Positioning assembly; 21. Support rod; 22. Positioning plate; 23. Positioning groove; 24. Filter hole; 3. Soot blowing mechanism; 31. Second air pump; 32. Conveying pipe; 33. Nozzle; 34. Arc block; 4. Fixing mechanism; 41. Clamping plate; 42. First threaded cylinder; 43. First threaded rod; 44. First compression spring; 45. First motor; 46. Synchronization structure; 461. Synchronization pulley; 462. Synchronization belt; 47. Connecting plate; 48. Slider; 49. Slide groove; 5. Air blowing clamping mechanism; 51. First air pump; 52. Telescopic... 53. Rubber hose; 54. Air supply box; 55. Air supply pipe; 56. Airbag; 57. Support leg; 58. Vent pipe; 6. Sealing plug; 6. Adsorption mechanism; 61. Dust collection box; 62. Exhaust pipe; 63. Dust suction pipe; 64. Dust suction hood; 65. Air outlet pipe; 66. Dustproof mesh plate; 67. Dust collection frame; 68. One-way sealing structure; 681. Connecting block; 682. Connecting disc; 683. Sealing valve core; 684. Second compression spring; 69. Pressure boosting component; 7. Lifting mechanism; 71. Second threaded rod; 72. Second threaded cylinder; 73. Lifting disc; 74. Second motor; 75. Telescopic guide column; 8. Locking assembly; 81. Rotating disc; 82. Rotating rod; 83. Support plate; 84. Locking plate; 85. Third compression spring; 86. Sliding hole. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This invention discloses a semi-automatic commutator inter-segment withstand voltage testing machine.

[0031] Reference Figure 1 as well as Figure 2 A semi-automatic commutator inter-segment withstand voltage testing machine includes a worktable 1, a positioning component 2, a fixing mechanism 4, a detector 14, an air-blowing clamping mechanism 5, a vertical plate 11, a dust-blowing mechanism 3, and a lifting mechanism 7.

[0032] Positioning assembly 2 is fixedly mounted on workbench 1 and used for initial positioning of the commutator. Workbench 1 has an installation chamber 13, and fixing mechanism 4 is fixedly mounted within the installation chamber 13 to clamp the commutator. Detector 14 is jacked up and mounted on workbench 1 and used to detect the clamped commutator. Air-blowing clamping mechanism 5 is fixedly mounted within the installation chamber 13 and used to drive fixing mechanism 4 to further clamp the commutator. Vertical plate 11 is fixedly mounted on workbench 1, and dust-blowing mechanism 3 is fixedly mounted on vertical plate 11 to clean dust from the commutator surface. Lifting mechanism 7 is fixedly mounted on vertical plate 11 and used to drive detector 14 to contact the commutator so that detector 14 can detect the commutator. Workbench 1 is equipped with an inspection door 15 for easy maintenance of fixing mechanism 4 and air-blowing clamping mechanism 5.

[0033] During operation, the commutator is first placed on the positioning assembly 2 for initial positioning. Then, the dust-blowing mechanism 3 is activated to clean the dust from the commutator surface, and the cleaned dust falls onto the positioning assembly 2 for initial collection, preventing dust adhering to the commutator surface from affecting the test results. Next, the commutator is clamped for the first time by the fixing mechanism 4. Simultaneously, the air-blowing clamping mechanism 5 drives the fixing mechanism 4 to further clamp the commutator, making the clamping more stable and preventing movement during testing. Finally, the lifting mechanism 7 drives the vertically mounted detector 14 to move downwards, ensuring precise contact between the detector 14 and the commutator's testing surface. The detector 14 is then activated to perform inter-segment withstand voltage testing on the clamped commutator.

[0034] Reference Figure 3 The positioning component 2 includes a support rod 21 and a positioning disk 22. The support rod 21 is fixedly mounted on the worktable 1, and the positioning disk 22 is fixedly mounted on the end of the support rod 21 away from the worktable 1. The positioning disk 22 has a positioning groove 23, which facilitates the installation of the commutator in the positioning groove 23 for initial positioning. When the dust blowing mechanism 3 cleans the dust on the surface of the commutator, the blown dust can be initially collected through the positioning groove 23. The positioning groove 23 has a filter hole 24, which facilitates the dust to fall through the filter hole 24 for further collection.

[0035] Reference Figure 4A placement chamber 16 is provided on the upright plate 11, and a soot blowing mechanism 3 is disposed within the placement chamber 16. The soot blowing mechanism 3 includes a second air pump 31, a delivery pipe 32, and a nozzle 33. The second air pump 31 is fixedly installed on the upright plate 11, and the delivery pipe 32 is disposed within the placement chamber 16. The air inlet of the delivery pipe 32 is connected to the air outlet of the second air pump 31, and the air inlet of the nozzle 33 is connected to the air outlet of the delivery pipe 32. An arc-shaped block 34 is installed on the bottom wall of the placement chamber 16, and the delivery pipe 32 is fixedly installed on the arc-shaped block 34 to form a stable support.

[0036] There are two nozzles 33, which are symmetrically arranged on the upright plate 11. Both nozzles 33 pass through the upright plate 11 and are inclined towards each other. Both nozzles 33 point directly above the positioning plate 22, so that air can be blown onto the surface of the commutator installed on the positioning plate 22 through the nozzles 33, and the dust on the surface can be blown into the positioning groove 23 for initial collection.

[0037] During operation, the commutator to be tested is placed in the positioning slot 23 for initial positioning. Then, the second air pump 31 is activated, and air is delivered to the delivery pipe 32 through the air inlet. The air in the delivery pipe 32 is then delivered to the nozzle 33 through the air outlet of the delivery pipe 32 for spraying. The air sprayed from the nozzle 33 directly acts on the commutator in the positioning slot 23, blowing off the dust on the surface of the commutator to prevent dust from affecting the testing accuracy. At the same time, the dust blown off the surface of the commutator falls into the positioning slot 23 for initial collection, and passes through the filter holes 24 opened in the positioning slot 23 for further dust collection.

[0038] Reference Figure 5 The fixing mechanism 4 includes a clamping plate 41, a first threaded cylinder 42, a first threaded rod 43, a first compression spring 44, a synchronization structure 46, and a first motor 45. The synchronization structure 46 includes two synchronous pulleys 461 and a synchronous belt 462 that drives the two synchronous pulleys 461 to rotate synchronously. There are two first threaded rods 43 and two first threaded cylinders 42, which are symmetrically arranged on the clamping plate 41.

[0039] The top of the workbench 1 has a movable hole 12, and two connecting plates 47 are slidably installed in the movable hole 12, symmetrically arranged on the clamping plate 41. Both connecting plates 47 are fixedly installed on the clamping plate 41, and two first threaded cylinders 42 are fixedly installed on their respective connecting plates 47. Two first threaded rods 43 are threadedly connected to their respective first threaded cylinders 42. Two synchronous pulleys 461 are fixedly installed on their respective first threaded rods 43, and a synchronous belt 462 is sleeved on the two synchronous pulleys 461 to drive the two first threaded rods 43 to rotate synchronously. A first motor 45 is fixedly installed on the mounting chamber 13, and the output end of the first motor 45 is fixedly connected to one of the first threaded rods 43 via a coupling. One end of the other first threaded rod 43 is rotatably installed on the side wall of the mounting chamber 13. A sliding plate is fixedly installed on the first threaded cylinder 42, and a sliding groove 49 is provided on the bottom wall of the mounting chamber 13. The sliding plate is slidably installed in the sliding groove 49 to limit and guide the movement of the first threaded cylinder 42.

[0040] Reference Figure 6 The air-blowing clamping mechanism 5 includes a first air pump 51, a telescopic rubber hose 52, an air box 53, an air pipe 54, and an airbag 55.

[0041] The first air pump 51 is fixedly installed on the bottom wall of the installation chamber 13. A support leg 56 is fixedly installed on the bottom of the air supply box 53, and the support leg 56 is also fixedly installed on the bottom wall of the installation chamber 13. A telescopic rubber hose 52 passes through the workbench 1, and its inlet is connected to the outlet of the air supply box 53. The inlet of the air supply pipe 54 is connected to the outlet of the telescopic rubber hose 52, and the inlet of the airbag 55 is connected to the outlet of the air supply pipe 54. One end of the first compression spring 44 is fixedly connected to the clamping plate 41, and the other end is fixedly connected to the airbag 55. The first compression spring 44 drives the clamping plate 41 to always tend to approach and clamp the commutator. Therefore, when the clamping plate 41 moves to clamp the commutator, the airbag 55 moves synchronously through the first compression spring 44. At this time, the telescopic nature of the rubber hose 52 ensures the continuity of the air path when the airbag 55 moves. The gas supply box 53 is connected to a vent pipe 57, which passes through the workbench 1. A sealing plug 58 is movably inserted into the inside of the vent pipe 57. This allows the gas in the gas supply box 53 to leak through the vent pipe 57, thereby causing the gas in the airbag 55 to leak out, preventing the airbag 55 from inflating and releasing the clamping plate 41.

[0042] During operation, the first motor 45 is started, driving one of the first threaded rods 43 to rotate. The rotation of the first threaded rod 43 drives the synchronous pulley 461 to rotate, and the rotation of the synchronous pulley 461, via the synchronous belt 462, drives both first threaded rods 43 to rotate synchronously. Simultaneously, the rotation of the first threaded rod 43 drives the first threaded cylinder 42 and the slider 48 to move horizontally along the slide groove 49. The first threaded cylinder 42 drives the connecting plate 47 to move along the moving hole 12, and the connecting plate 47 drives the clamping plate 41 to move along the moving hole 12 to complete the clamping of the commutator. At this time, the preload of the first compression spring 44 helps to improve clamping stability.

[0043] Subsequently, by activating the first air pump 51, gas is introduced into the air box 53. The introduced gas enters the telescopic rubber hose 52, which drives the gas through the air pipe 54 to the airbag 55, thereby causing the airbag 55 to inflate. When the airbag 55 inflates, it compresses the first compression spring 44 towards the clamping plate 41, thereby driving the clamping plate 41 to further adhere to the commutator and further clamp the commutator, thus preventing the commutator from moving during the testing process.

[0044] Reference Figure 7 as well as Figure 8 An adsorption mechanism 6 is installed inside the installation chamber 13 to further collect the dust blown off by the dust blowing mechanism 3. The adsorption mechanism 6 includes a dust collection box 61, an exhaust pipe 62, a dust suction pipe 63, and a dust suction hood 64. The dust collection box 61 is fixedly installed on the bottom wall of the installation chamber 13. The air supply box 53 also has an exhaust port, and the air inlet of the exhaust pipe 62 is connected to the exhaust port. The exhaust pipe 62 is connected to the dust suction pipe 63 and is inclined downward towards the dust collection box 61. The exhaust port of the dust suction pipe 63 is connected to the dust collection box 61. The dust suction hood 64 is connected to the air inlet of the dust suction pipe 63. The workbench 1 has a mounting hole that matches the dust suction hood 64. The dust suction hood 64 is installed in the mounting hole and is located directly below the filter hole 24. The air outlet of the dust collection box 61 is connected to the air outlet pipe 65, the air inlet of the air outlet pipe 65 is equipped with a dustproof mesh plate 66, and a dust collection frame 67 is installed inside the dust collection box 61.

[0045] A one-way sealing structure 68 for sealing the air inlet of the exhaust pipe 62 is connected between the exhaust pipe 62 and the air supply box 53. The one-way sealing structure 68 includes a connecting block 681, a connecting plate 682, a sealing valve core 683, and a second compression spring 684. The connecting block 681 is fixedly installed inside the air supply pipe 54, the connecting plate 682 is fixedly installed on the connecting block 681, one end of the second compression spring 684 is fixedly connected to the connecting plate 682, and the other end of the second compression spring 684 is fixedly connected to the sealing valve core 683. The second compression spring 684 drives the sealing valve core 683 to always tend to insert into the air inlet of the exhaust pipe 62 for sealing. A pressurizing component 69 is fixedly installed inside the exhaust pipe 62 and is located on the side away from the sealing valve core 683. After the gas enters the exhaust pipe 62, it is pressurized by the pressurizing component 69 to accelerate the gas flow rate.

[0046] The one-way sealing structure 68 has an open state and a sealed state.

[0047] When the one-way sealing structure 68 is in the open state, the first air pump 51 delivers gas to the air supply box 53. The gas in the air supply box 53 is delivered to the telescopic rubber hose 52 through the air outlet. After entering the telescopic rubber hose 52, the gas enters the air supply pipe 54 and then into the airbag 55, causing the airbag 55 to inflate. After the airbag 55 inflates for a period of time, the pressure in the air supply box 53 increases. At this time, the increased pressure of the gas drives the sealing valve core 683 to move against the resistance of the second compression spring 684, so that a gap is formed between the sealing valve core 683 and the air inlet of the exhaust pipe 62, allowing gas to enter. The gas is driven into the exhaust pipe 62 and pressurized by the pressurizing component 69, increasing the gas flow rate in the exhaust pipe 62.

[0048] When the one-way sealing structure 68 is in a sealed state, the first air pump 51 stops working. At this time, the second pressure spring 684 overcomes the resistance of the gas and drives the sealing valve core 683 to re-insert into the air inlet of the exhaust pipe 62 to seal, so as to prevent gas from leaking after it is filled into the air bag 55.

[0049] During operation, when the first air pump 51 delivers gas to the air tank 53, the gas flows upward through the telescopic rubber hose 52, causing the airbag 55 to inflate. After the airbag 55 has inflated for a period of time, the gas drives the sealing valve core 683 to move against the resistance of the second compression spring 684, creating a gap between the sealing valve core 683 and the air inlet of the exhaust pipe 62, allowing gas to enter the exhaust pipe 62 and be pressurized by the pressurizing component 69, thereby increasing the gas flow rate in the exhaust pipe 62. At this time, the airbag 55 can still maintain its expansion, causing the clamping plate 41 to further adhere to the commutator for further clamping of the commutator.

[0050] Simultaneously, the increased gas velocity allows the gas to enter the suction pipe 63 through the exhaust pipe 62 and flow downwards, creating a negative pressure within the suction pipe 63. This negative pressure forces external gas to enter through the suction pipe 63, causing the suction pipe 63 and the suction hood 64 to begin suction operations, drawing the dust initially collected in the positioning slot 23 through the filter holes 24. Subsequently, both gas and dust are transported to the dust collection box 61 through the suction hood 64 and the suction pipe 63. At this point, the gas is discharged through the exhaust pipe 65, while the dust, intercepted by the dustproof mesh plate 66, falls into the dust collection frame 67 for further collection. When the dust collection frame 67 is full and needs cleaning, simply pull the dust collection frame 67 out of the dust collection box 61.

[0051] Reference Figure 9 The lifting mechanism 7 includes a second threaded rod 71, a second threaded cylinder 72, a lifting plate 73, and a second motor 74. The second motor 74 is fixedly mounted on the top wall of the placement chamber 16. The second threaded rod 71 is fixedly connected to the output end of the second motor 74 via a coupling, and the second threaded rod 71 passes through the upright plate 11. The second threaded cylinder 72 is threadedly connected to the second threaded rod 71, and one end of the second threaded cylinder 72 near the worktable 1 is fixedly mounted on the lifting plate 73. A telescopic guide post 75 is fixedly mounted on the lifting plate 73, and the end of the telescopic guide post 75 away from the worktable 1 is fixedly connected to the upright plate 11. A locking assembly 8 is installed on the lifting plate 73 to lock the detector 14 to the lifting plate 73.

[0052] During operation, the second motor 74 is activated to drive the second threaded rod 71 to rotate. The rotation of the second threaded rod 71 causes the second threaded cylinder 72 to move downwards. The downward movement of the second threaded cylinder 72 causes the lifting plate 73 to move downwards. The downward movement of the lifting plate 73 causes the detector 14, which is locked to it, to move downwards, allowing the detector 14 to engage with the commutator for detection. Simultaneously, the telescopic guide post 75 provides limiting and guidance during the downward movement of the detector 14, making its downward movement more stable.

[0053] Reference Figure 9The locking assembly 8 includes a rotating disk 81, a rotating rod 82, a support plate 83, a third compression spring 85, and a locking plate 84. The rotating disk 81 is rotatably mounted on the lifting plate 73. The rotating rod 82 is hinged to the side of the rotating disk 81 near the worktable 1. The support plate 83 is fixedly mounted on the lifting plate 73. The locking plate 84 is rotatably mounted on the rotating rod 82. The detector 14 passes through the support plate 83. The support plate 83 has a sliding hole 86. The locking plate 84 is slidably mounted in the sliding hole 86 and is inserted into the detector 14 to lock the detector 14 to the lifting plate 73. One end of the third compression spring 85 is fixedly connected to the side wall of the sliding hole 86, and the other end of the third compression spring 85 is fixedly connected to the locking plate 84. The third compression spring 85 drives the locking plate 84 to always have the tendency to insert into the detector 14 to lock the detector 14 to the lifting plate 73.

[0054] When the detector 14 needs to be replaced after a long period of use, the rotating disk 81 is manually rotated to drive the rotating rod 82 to rotate. When the rotating rod 82 rotates, it drives the locking plate 84 to overcome the resistance of the third compression spring 85 and move along the sliding hole 86 to the side away from the detector 14. This causes the locking plate 84 to exit the detector 14 and no longer lock the detector 14 to the lifting disk 73, thus facilitating the replacement of the detector 14.

[0055] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A semi-automatic commutator inter-segment withstand voltage testing machine, comprising a worktable (1), a fixing mechanism (4) mounted on the worktable (1) for clamping the commutator to be tested, and a detector (14) vertically mounted on the worktable (1) for testing the commutator, characterized in that, It also includes an air-blowing clamping mechanism (5) installed on the workbench (1) and used to drive the fixing mechanism (4) to further clamp the commutator. The workbench (1) has an installation chamber (13) inside. The fixing mechanism (4) includes a clamping plate (41) for clamping the commutator. The air-blowing clamping mechanism (5) includes a first air pump (51) installed in the installation chamber (13), an air box (53) connected to the air outlet of the first air pump (51), a telescopic rubber hose (52) connected to the air outlet of the air box (53), an air pipe (54) connected to the air outlet of the telescopic rubber hose (52), and an air bag (55) connected to the air outlet of the air pipe (54). The air bag (55) is connected to the clamping plate (41) so that when the air bag (55) is inflated, it drives the clamping plate (41) to further clamp the commutator.

2. The semi-automatic commutator inter-segment withstand voltage testing machine according to claim 1, characterized in that, The fixing mechanism (4) further includes two first threaded cylinders (42) mounted on the clamping plate (41), two first threaded rods (43) mounted on the side wall of the mounting chamber (13) and threadedly connected to the two first threaded cylinders (42), a synchronization structure (46) mounted on the side wall of the mounting chamber (13) and used to drive the two first threaded rods (43) to rotate synchronously, and a first motor (45) mounted on the side wall of the mounting chamber (13) and used to drive the first threaded rods (43) to rotate. The clamping plate (41) is slidably mounted on the worktable (1). A first compression spring (44) is connected between the airbag (55) and the clamping plate (41). The first compression spring (44) drives the clamping plate (41) to always have a tendency to approach the commutator and clamp the commutator. When the airbag (55) inflates, it compresses the first compression spring (44) towards the clamping plate (41) to drive the clamping plate (41) to fit against the commutator.

3. The semi-automatic commutator inter-segment withstand voltage testing machine according to claim 1, characterized in that, A vertical plate (11) is installed on the workbench (1), and a dust blowing mechanism (3) for cleaning dust on the commutator surface is installed on the vertical plate (11); the dust blowing mechanism (3) includes a second air pump (31) installed on the vertical plate (11), a delivery pipe (32) connected to the air outlet of the second air pump (31), and a nozzle (33) connected to the air outlet of the delivery pipe (32); The nozzle (33) passes through the vertical plate (11) and is located directly above the workbench (1); When the commutator is fixed on the workbench (1), air is blown onto the surface of the commutator through the nozzle (33) to blow off and clean the dust on the surface.

4. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 3, characterized in that, The workbench (1) is equipped with a positioning component (2) for preliminary positioning of the commutator; the positioning component (2) includes a support rod (21) mounted on the workbench (1) and a positioning disk (22) mounted on the support rod (21) for positioning the commutator. The top of the positioning disk (22) is provided with a positioning groove (23), and the commutator is installed in the positioning groove (23) for initial positioning. The positioning groove (23) is used to initially collect the dust blown off by the nozzle (33).

5. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 4, characterized in that, The installation chamber (13) is equipped with an adsorption mechanism (6) for further collecting the dust blown off by the dust blowing mechanism (3); the adsorption mechanism (6) includes a dust collection box (61) installed in the installation chamber (13), a dust suction hood (64) that cooperates with the positioning plate (22) and faces the positioning plate (22), and a dust suction pipe (63) that connects the dust suction hood (64) and the dust collection box (61); the air supply box (53) also has an exhaust port, and an exhaust pipe (62) is connected to the exhaust port. The exhaust pipe (62) is connected to the dust suction pipe (63) and is inclined downward toward the dust collection box (61); the exhaust pipe (62) is provided with a one-way sealing structure (68) for sealing the exhaust port, and the one-way sealing structure (68) opens when the preset air pressure is reached; when the air supply box (53) reaches the preset air pressure, the air inside it enters the dust collection box (61) through the exhaust pipe (62) and forms a negative pressure in the dust suction pipe (63) to attract the dust on the positioning plate (22).

6. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 5, characterized in that, The one-way sealing structure (68) includes a connecting block (681) installed inside the exhaust pipe (62), a connecting plate (682) installed on the connecting block (681), a sealing valve core (683) for sealing the air inlet of the exhaust pipe (62), and a second compression spring (684) connected between the sealing valve core (683) and the connecting plate (682); the second compression spring (684) drives the sealing valve core (683) to always have the tendency to insert into the air inlet of the exhaust pipe (62) for sealing; A booster (69) is installed inside the exhaust pipe (62) and the booster (69) is located on the side away from the sealing valve core (683); after the gas enters the exhaust pipe (62), it is boosted by the booster (69) to accelerate the gas flow rate.

7. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 6, characterized in that, The positioning groove (23) is provided with a filter hole (24), and the dust suction cover (64) is installed on the workbench (1) and located directly below the filter hole (24); the air outlet of the dust collection box (61) is connected to an air outlet pipe (65), and the air inlet of the air outlet pipe (65) is equipped with a dustproof mesh plate (66); a dust collection frame (67) is installed inside the dust collection box (61). When the suction pipe (63) and the suction hood (64) are working together, the dust collected inside the positioning groove (23) is sucked into the dust collection box (61) through the filter hole (24). Then the gas is discharged through the exhaust pipe (65), and the dust falls into the dust collection frame (67) for further collection after being intercepted by the dustproof mesh plate (66).

8. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 3, characterized in that, The upright plate (11) is equipped with a lifting mechanism (7) for driving the detector (14) to fit against the commutator so that the detector (14) can detect the commutator. The lifting mechanism (7) includes a second threaded rod (71) passing through the upright plate (11), a second threaded cylinder (72) threaded to the second threaded rod (71), a lifting plate (73) mounted on the second threaded cylinder (72) and connected to the detector (14), and a second motor (74) mounted on the upright plate (11) for driving the second threaded rod (71) to rotate.

9. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 8, characterized in that, The lifting plate (73) is equipped with a locking component (8) for fixing the detector (14) on the lifting plate (73); The locking assembly (8) includes a rotating disk (81) mounted on the lifting plate (73), a rotating rod (82) hinged to the rotating disk (81), a support plate (83) mounted on the lifting plate (73), and a locking plate (84) mounted on the rotating rod (82) and sliding on the support plate (83) to lock the detector (14) to the lifting plate (73). A third compression spring (85) is connected between the locking plate (84) and the support plate (83). The third compression spring (85) drives the locking plate (84) to always have the tendency to insert into the detector (14) and lock the detector (14) and the lifting plate (73).

10. A semi-automatic commutator inter-segment withstand voltage testing machine according to claim 9, characterized in that, A telescopic guide post (75) is provided between the upright plate (11) and the lifting plate (73). The telescopic guide post (75) includes two telescopic units that extend and retract with each other to guide and limit the movement of the lifting plate (73). The detector (14) passes through the support plate (83) to insert the locking plate (84) into the detector (14) under the action of the third compression spring (85), thereby locking the detector (14) between the lifting plate (73) and the lifting plate (73).

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