A shaft parameter detection device

Abstract

This invention discloses a shaft parameter testing device, belonging to the field of shaft parts testing technology. It includes: a worktable, a testing height adjustment component mounted on the worktable, a continuous testing component mounted on the worktable, the continuous testing component including a laterally movable testing plate, and a negative pressure positioning component mounted on the testing plate. The negative pressure positioning component includes multiple sets of negative pressure boxes mounted on the testing plate, each negative pressure box containing a hollow stage. Multiple sets of suction nozzles are connected to the hollow stages, and each negative pressure box has a main negative pressure chamber communicating with the hollow stages. This shaft parameter testing device achieves negative pressure adsorption positioning through the cooperation of the main negative pressure chamber, auxiliary negative pressure chamber, and suction nozzles. The entire process eliminates the need for traditional bolt clamping operations, avoiding indentations and scratches on the motor shaft surface caused by improper manual clamping force, thus ensuring the surface quality of the motor shaft.

Description

Technical Field

[0001] This invention relates to the field of shaft component testing technology, and in particular to a shaft parameter testing device. Background Technology

[0002] The motor shaft is the core component for power transmission in a motor. Its performance directly determines the motor's output efficiency, operational stability, and service life. In actual operation, the motor shaft must continuously withstand torque, speed impact, and radial load. Its key quality parameters, such as surface roughness and coaxiality, not only affect the fitting accuracy between the motor's internal bearings and rotor, but are also closely related to the vibration intensity and energy loss during motor operation. If these parameters do not meet the standards, it can easily lead to motor failure.

[0003] In the current motor shaft production and inspection process, the positioning operation of the motor shaft is mostly carried out by combining traditional fixtures with manual assistance. The specific process is as follows: the staff needs to manually transfer the motor shaft to be inspected to the designated inspection station and place it in the preset positioning area of ​​the traditional clamping fixture. Then, by tightening multiple sets of fastening bolts on the fixture one by one, the motor shaft is rigidly fixed by the tightening force of the bolts. After the motor shaft has completed the inspection process, the staff needs to manually loosen the clamping bolts and remove the inspected motor shaft smoothly. Then, the next motor shaft to be inspected is placed back in the fixture positioning area, and the clamping operation process of "placement - tightening bolts to fix - loosening bolts to remove after inspection" is repeated.

[0004] However, when manually tightening bolts, the clamping force relies entirely on experience. Excessive force can easily cause indentations on the motor shaft surface, while insufficient force can easily lead to shaft misalignment during testing. Furthermore, the clamping surface wears down after long-term use, which further increases the risk of scratches on the shaft surface, damaging the surface quality of the motor shaft and affecting the subsequent motor assembly accuracy. In addition, each time the motor shaft is positioned and replaced, multiple sets of bolts need to be tightened and loosened repeatedly, making the operation cumbersome and time-consuming. This makes it difficult to achieve continuous positioning operations and reduces the efficiency of batch testing. Therefore, it is necessary to design a shaft parameter testing device.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] This invention provides a shaft parameter detection device that solves the problem that the traditional motor shaft positioning process is prone to damage to the motor shaft surface or shaft displacement during detection due to manual tightening of bolts to control the clamping force. At the same time, it solves the problem that repeated bolt operation makes the positioning process cumbersome and time-consuming, makes it difficult to achieve continuous positioning, and thus reduces the efficiency of batch testing.

[0007] The present invention adopts the following technical solution: a shaft parameter detection device, comprising:

[0008] Workbench;

[0009] Inspect the height adjustment component, which is mounted on the workbench;

[0010] A continuous detection assembly mounted on a workbench, the continuous detection assembly including a detection plate capable of lateral movement;

[0011] A negative pressure positioning component is mounted on a detection plate. The negative pressure positioning component includes multiple sets of negative pressure boxes mounted on the detection plate. Each negative pressure box is equipped with a hollow platform. Multiple sets of suction nozzles are connected to the hollow platform. The negative pressure box is provided with a main negative pressure chamber that communicates with the hollow platform.

[0012] The negative pressure box is provided with an auxiliary negative pressure chamber that communicates with the main negative pressure chamber. A first rack slides on one side of the negative pressure box, an intermediate frame is installed on the first rack, and a sealing plate that can slide in the auxiliary negative pressure chamber is installed on the intermediate frame.

[0013] A rotating shaft is rotatably connected to one side of the negative pressure box. A first gear that can mesh with a first rack is installed at one end of the rotating shaft, and a second gear is installed at the other end of the rotating shaft. A second rack and a third rack located on both sides of the second gear and that can mesh with the second gear are installed on the worktable.

[0014] Furthermore, the detection height adjustment component includes a first assembly frame, in which a first one-way lead screw is rotatably connected. A first slider is sleeved on the body of the first one-way lead screw, and an adapter plate is installed on one side of the first slider.

[0015] Furthermore, a handwheel is installed at one end of the first one-way lead screw.

[0016] Furthermore, an assembly frame is mounted on the adapter plate, and a roughness tester is mounted on one side of the assembly frame, with a test head mounted on the roughness tester.

[0017] Furthermore, the continuous detection assembly also includes a second assembly frame mounted on the workbench. A drive motor is mounted on one end of the second assembly frame. The output end of the drive motor extends into the second assembly frame and is coaxially mounted with a second one-way lead screw. A second slider is sleeved on the shaft of the second one-way lead screw, and the detection plate is mounted on the second slider.

[0018] Two sets of second guide rods are installed inside the second assembly frame, and a second guide block that can slide on the second guide rods is installed at the lower part of the detection plate.

[0019] Furthermore, a support plate is installed on the other side of the workbench, and the third rack is mounted on the support plate.

[0020] Furthermore, two sets of support rods are installed on the workbench, and the second rack is installed on the support rods.

[0021] Furthermore, a limiting plate is installed on one side of the negative pressure box, and the first rack can slide along the limiting plate.

[0022] Furthermore, a horizontal plate is installed at one end of the first rack, and the intermediate frame is installed on the horizontal plate.

[0023] Furthermore, a transmission frame is installed on one side of the negative pressure box, and the rotating shaft is rotatably connected to the transmission frame.

[0024] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0025] Negative pressure adsorption positioning is achieved through the cooperation of the main negative pressure chamber, the auxiliary negative pressure chamber and the adsorption nozzle. The entire process does not require traditional bolt clamping operations, avoiding the problem of indentation and scratches on the motor shaft surface caused by improper manual control of clamping force, thus ensuring the surface quality of the motor shaft.

[0026] At the same time, the meshing transmission between the second gear and the second and third racks enables the negative pressure positioning component to automatically complete the adsorption positioning and negative pressure release of the motor shaft, eliminating the need for workers to repeatedly loosen and tighten bolts to install and remove the motor shaft, thereby improving the efficiency of batch inspection of motor shafts. Attached Figure Description

[0027] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0028] In the attached diagram:

[0029] Figure 1 This is a first three-dimensional structural schematic diagram of a shaft parameter detection device according to this application;

[0030] Figure 2 This is a second three-dimensional structural schematic diagram of a shaft parameter detection device according to this application;

[0031] Figure 3 This is a three-dimensional structural diagram of the height adjustment component in this application;

[0032] Figure 4 This is a three-dimensional structural diagram of the continuous detection component in this application;

[0033] Figure 5This is a partial three-dimensional structural diagram of the negative pressure positioning component in this application;

[0034] Figure 6 This is a cross-sectional view of the negative pressure positioning component in this application;

[0035] Figure 7 This is a schematic diagram of the second partial three-dimensional structure of the negative pressure positioning component in this application;

[0036] Figure 8 This is a three-dimensional structural diagram of the negative pressure positioning component in this application.

[0037] Figure label:

[0038] 1. Workbench;

[0039] 2. Height adjustment assembly; 21. First assembly frame; 22. First one-way lead screw; 221. Handwheel; 23. First slider; 24. Adapter plate; 25. First guide rod; 26. First guide block; 27. Assembly frame; 271. Roughness tester; 272. Test head;

[0040] 3. Continuous detection assembly; 31. Second assembly frame; 32. Motor; 33. Second one-way lead screw; 34. Second slider; 35. Detection plate; 36. Second guide rod; 37. Second guide block; 38. Carriage;

[0041] 4. Negative pressure positioning assembly; 41. Negative pressure box; 42. Hollow platform; 421. Adsorption nozzle; 422. Vent pipe; 43. Main negative pressure chamber; 44. Auxiliary negative pressure chamber; 441. Vent hole; 442. Rectangular through hole; 45. Limiting plate; 451. First rack; 452. Horizontal plate; 453. Intermediate frame; 454. Sealing plate; 46. Transmission frame; 461. Rotating shaft; 462. First gear; 463. Second gear; 47. Support rod; 471. Second rack; 48. Support plate; 481. Third rack. Detailed Implementation

[0042] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0043] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] Reference Figures 1 to 3 As shown, this embodiment of the invention provides a shaft parameter detection device, including a worktable 1. The worktable 1 serves as the basic support structure of the entire device, providing a stable installation platform for subsequent functional components and possessing sufficient rigidity to support the weight of each component and the motor shaft to be tested.

[0045] A detection height adjustment component 2 is installed on one side of the upper surface of the workbench 1. The detection height adjustment component 2 is used to realize the height adaptation of the detection component to meet the detection requirements of motor shafts of different specifications. The detection height adjustment component 2 includes a first assembly frame 21, which serves as the frame carrier of the component and provides a stable installation space for the internal transmission components.

[0046] A first one-way screw 22 is rotatably connected inside the first assembly frame 21. The first one-way screw 22 is a transmission component that realizes height adjustment, ensuring that power can be transmitted smoothly during the adjustment process. A handwheel 221 is fixedly installed at one end of the first one-way screw 22, providing the operator with a convenient manual adjustment component.

[0047] A first slider 23 is threadedly connected to the body of the first one-way lead screw 22. The first slider 23 is the actuator for height adjustment. An adapter plate 24 is bolted to one side of the first slider 23. The adapter plate 24 serves as a transition connecting the first slider 23 and the subsequent detection component. The bolt connection with the first slider 23 must be firm and reliable, and it must have a certain degree of flatness to ensure the installation accuracy of the subsequent component.

[0048] An assembly frame 27 is bolted onto the adapter plate 24. The assembly frame 27 is used to fix the testing instrument. Its structure is adapted to the installation requirements of the testing instrument and has sufficient load-bearing capacity to prevent the testing instrument from shaking during the testing process. A roughness tester 271 is bolted onto one side of the assembly frame 27. The roughness tester 271 is a prior art device for detecting the surface roughness of the motor shaft. It can capture the micro-unevenness of the shaft surface. A testing head 272 for roughness detection is installed on the roughness tester 271. The testing head 272 is a prior art device. Its contact end is made of a wear-resistant and soft material. While ensuring the detection sensitivity, it reduces the risk of scratches or indentations on the surface of the motor shaft. At the same time, its structure facilitates the fit with the shaft surface, ensuring the accuracy of the collected shaft surface roughness data.

[0049] First guide rods 25 are bolted to both sides of the first assembly frame 21. The first guide rods 25 must be parallel to the first one-way lead screw 22 and have a smooth surface. A first guide block 26 that can slide on the first guide rods 25 is bolted to the adapter plate 24. The first guide block 26 works in conjunction with the first guide rods 25 to further restrict the movement direction of the adapter plate 24 and prevent the adapter plate 24 from twisting or shifting when it moves with the first slider 23, thus ensuring that the detection height adjustment component 2 maintains position control during the adjustment process.

[0050] Specifically, when the operator rotates the handwheel 221 of the height adjustment component 2, it can drive the first one-way screw 22 to rotate inside the first assembly frame 21. Since the first slider 23 is connected to the first one-way screw 22 by a thread, and the first guide block 26 on the adapter plate 24 will slide along the first guide rod 25 to limit the offset, the first slider 23 will synchronously drive the adapter plate 24, the assembly frame 27 and the roughness detector 271 on the assembly frame 27 to rise and fall together.

[0051] After continuously adjusting until the height of the detection head 272 matches the axial height of the motor shaft to be tested, stop turning the handwheel 221 to complete the calibration operation of the detection height. It should be noted that during the testing of a single set of motor shafts, the handwheel 221 must be turned according to the procedure to make targeted adjustments to the position of the detection head 272, so as to ensure the accuracy of the motor shaft parameter measurement results.

[0052] See Figure 1 and Figure 4 As shown, a continuous inspection assembly 3 is installed on the workbench 1. The continuous inspection assembly 3 is used to realize continuous conveying inspection of the motor shaft and improve batch inspection efficiency. The continuous inspection assembly 3 includes a second assembly frame 31 that is bolted to the workbench 1. The second assembly frame 31 serves as the frame foundation of the assembly and provides a stable installation support for the internal power components and transmission components.

[0053] A drive motor 32 is bolted to the outer wall of one end of the second assembly frame 31. The drive motor 32 serves as the power source for the continuous detection component 3 and must have stable power output performance. The output end of the drive motor 32 extends into the second assembly frame 31 and is coaxially mounted with a second one-way lead screw 33. The second one-way lead screw 33 is a component that converts the rotational power of the drive motor 32 into linear transmission power and must have high transmission accuracy. One end of the second one-way lead screw 33 is rotatably connected to the second assembly frame 31 to ensure smooth rotation of the second one-way lead screw 33 and limit the axial movement of the second one-way lead screw 33 to ensure transmission accuracy.

[0054] A second slider 34 is threadedly connected to the body of the second one-way lead screw 33. A detection plate 35 is bolted to the upper part of the second slider 34. The detection plate 35 is a platform that supports the negative pressure positioning part and the motor shaft to be tested. The surface must have good flatness to ensure the installation accuracy of the negative pressure positioning part. At the same time, the structure must have sufficient load-bearing capacity to prevent deformation due to force from affecting the conveying accuracy.

[0055] A second guide rod 36 is fixedly installed on both sides inside the second assembly frame 31. The second guide rod 36 must be parallel to the second one-way lead screw 33, and the surface smoothness must meet the sliding requirements to provide reliable guidance for the linear movement of the detection plate 35. A second guide block 37 that can slide on the second guide rod 36 is installed on the lower part of the detection plate 35 by bolts. The second guide block 37 cooperates with the second guide rod 36 to further constrain the movement direction of the detection plate 35, prevent the detection plate 35 from twisting or laterally shifting during the movement, and ensure that the detection plate 35 drives the motor shaft to move accurately to the detection station.

[0056] Two sets of slides 38 are bolted to the workbench 1. The plate body of the detection plate 35 can slide along the slides 38. The slides 38 can share the weight of the detection plate 35, reduce the stress on the second slider 34 and the second guide rod 36, improve the stability of the movement of the detection plate 35, prevent sagging or deformation caused by the weight of the detection plate 35 itself, and ensure that the motor shaft remains horizontal during the conveying process.

[0057] Specifically, after the drive motor 32 starts, its output end transmits rotational power to the coaxially connected second one-way lead screw 33. Because one end of the second one-way lead screw 33 is rotatably connected to the second assembly frame 31, it can both ensure smooth rotation of the lead screw and restrict its axial movement.

[0058] Subsequently, the second one-way lead screw 33 converts the rotational power into linear power. The second slider 34 is threadedly connected to the lead screw body. When the lead screw rotates, it drives the second slider 34 to move linearly along the axial direction. The detection plate 35 is fixed to the upper part of the second slider 34 by bolts and moves synchronously with the slider, thereby driving the motor shaft to move. When the detection plate 35 moves, the second guide rod 36 cooperates with the second guide block 37 at the lower part of the detection plate 35 to restrict the movement direction of the detection plate 35, avoid twisting or lateral deviation, and ensure that it moves along the preset linear trajectory, driving the motor shaft to accurately reach the detection station.

[0059] In addition, the two sets of slides 38 on the workbench 1 slide in cooperation with the detection plate 35, which can share the weight of the detection plate 35 and the components above it, reduce the stress on the second slider 34 and the guide rod, improve the stability of movement, prevent the detection plate 35 from sagging, and ensure that the motor shaft is always horizontal during the conveying process, providing a stable posture for subsequent testing.

[0060] See Figure 1 , Figure 2 and Figures 5 to 8As shown, a negative pressure positioning component 4 is installed on the detection plate 35. This component achieves non-destructive positioning of the motor shaft through negative pressure adsorption, eliminating the need for repeated tightening and loosening of bolts, thus improving positioning efficiency. The negative pressure positioning component 4 includes multiple sets of negative pressure boxes 41 that are bolted to the detection plate 35. The multiple sets of negative pressure boxes 41 are reasonably distributed according to the length of the motor shaft to be tested, ensuring that the motor shaft is adsorbed and positioned from multiple points, preventing uneven force on the shaft from causing tilting or displacement.

[0061] Hollow platforms 42 are bolted into the negative pressure box 41. The hollow platform 42 is a direct placement platform for the motor shaft. The surface is designed with an arc-shaped structure that fits the outer circle of the motor shaft to increase the contact area with the motor shaft and improve the adsorption stability. Multiple connected adsorption nozzles 421 are installed at intervals on the hollow platform 42. The number and distribution of adsorption nozzles 421 are reasonably designed according to the length of the hollow platform 42 and the diameter of the motor shaft to ensure that the adsorption force is evenly applied to the surface of the motor shaft. The adsorption nozzles 421 are made of soft and wear-resistant material, which can ensure a tight fit with the surface of the motor shaft and avoid scratching the shaft surface.

[0062] A main negative pressure chamber 43 is provided at the bottom inside the negative pressure box 41. The main negative pressure chamber 43 is the main space for storing negative pressure. The volume is designed according to the number of adsorption nozzles 421 and the required adsorption force to ensure that a stable and continuous negative pressure is provided to each adsorption nozzle 421. Multiple vent pipes 422 that can extend into the main negative pressure chamber 43 are connected to the hollow platform 42. The connection between the vent pipe 422 and the hollow platform 42 and the main negative pressure chamber 43 is sealed to prevent negative pressure leakage.

[0063] An auxiliary negative pressure chamber 44 is provided inside one end of the negative pressure box 41. The auxiliary negative pressure chamber 44 serves as an auxiliary adjustment space for the main negative pressure chamber 43 and is used to switch between adsorption and release. A vent 441 communicating with the main negative pressure chamber 43 is provided in the auxiliary negative pressure chamber 44. The vent 441 ensures smooth negative pressure transmission. A rectangular through hole 442 is provided at one end of the auxiliary negative pressure chamber 44. The rectangular through hole 442 communicates with the external working environment to ensure the stability of the negative pressure process.

[0064] A limit plate 45 is bolted to the outer wall of one side of the negative pressure box 41. A first rack 451 is slidably mounted on the limit plate 45. The first rack 451 is a component that transmits power, and its tooth surface must have sufficient wear resistance.

[0065] A horizontal plate 452 is fixedly installed at one end of the first rack 451. An intermediate frame 453 that can extend into the auxiliary negative pressure chamber 44 is installed on the horizontal plate 452 by bolts. The intermediate frame 453 needs to have a certain strength and rigidity, and its length needs to be adapted to the depth of the auxiliary negative pressure chamber 44 to ensure that the sealing plate 454 can smoothly enter the auxiliary negative pressure chamber 44. A sealing plate 454 that can slide in the auxiliary negative pressure chamber 44 is fixedly installed at one end of the intermediate frame 453. The sealing plate 454 is made of a material with good sealing performance and wear resistance. Its size needs to be adapted to the auxiliary negative pressure chamber 44 to ensure that the opening and closing of the vent 441 can be accurately controlled to achieve effective adjustment of negative pressure.

[0066] A transmission frame 46 is bolted to the outer wall of one side of the negative pressure box 41. The transmission frame 46 has sufficient strength and must be firmly installed. A rotating shaft 461 is rotatably connected to the transmission frame 46. The rotating shaft 461 is made of a material with good strength and wear resistance and is connected to the transmission frame 46 through a bearing to ensure flexible rotation and low resistance. A first gear 462 that can mesh with the first rack 451 is installed at one end of the rotating shaft 461. The module of the first gear 462 is adapted to the first rack 451. A second gear 463 is installed at the other end of the rotating shaft 461. The module of the second gear 463 must be adapted to the subsequent rack. It is also made of metal material and has good wear resistance and strength to ensure stable power transmission during meshing.

[0067] Two sets of support rods 47 are bolted to the workbench 1. The support rods 47 must have sufficient strength and be firmly installed to prevent positional displacement due to force. One end of each set of support rods 47 is fixedly installed with a second rack 471 that can mesh with one side of the second gear 463. The module of the second rack 471 is adapted to the second gear 463, and the length is designed according to the motion stroke of the detection plate 35. It is made of metal material and can mesh stably with the second gear 463.

[0068] A support plate 48 is bolted to the other side of the workbench 1. The support plate 48 must have sufficient structural strength and be firmly connected to the workbench 1 to prevent shaking during equipment operation. A third rack 481 that can mesh with the other side of the second gear 463 is fixedly installed at one end of the support plate 48. The module of the third rack 481 is adapted to the second gear 463, and its length is designed according to the stroke of the detection plate 35. It is made of metal material, and its installation position must correspond to the second rack 471 to ensure that the second gear 463 can smoothly mesh with the third rack 481 when the detection plate 35 moves, thus completing the release action of the motor shaft.

[0069] Working principle: First, by rotating the handwheel 221 in the detection height adjustment assembly 2, the first one-way lead screw 22 is driven to rotate within the first assembly frame 21. Since the first slider 23 is threadedly connected to the first one-way lead screw 22, and the first guide block 26 on the adapter plate 24 slides along the first guide rod 25, the first slider 23 will drive the adapter plate 24, the assembly frame 27, and the roughness detector 271 to rise and fall synchronously until the height of the detection head 272 matches the axial height of the motor shaft to be tested. Then, stop rotating the handwheel 221 to complete the calibration of the detection height. During the testing of a single motor shaft, it is necessary to rotate the handwheel 221 and adjust the position of the detection head 272 in sequence to ensure the accuracy of the measurement parameters.

[0070] When the equipment is in operation, the first step is to load the motor shaft. The staff will place the motor shaft to be tested stably on the hollow platform 42 of the multiple negative pressure boxes 41 in the negative pressure positioning component 4. The arc-shaped surface of the hollow platform 42 is precisely fitted with the outer circle of the motor shaft. Through the limiting effect of the arc structure, the lateral movement of the motor shaft in the horizontal direction is reduced, and the initial positioning of the motor shaft is completed.

[0071] At this time, the continuous detection component 3 has not yet started the conveying action, but the negative pressure positioning component 4 has entered the negative pressure forming stage. Since the detection plate 35 is in the initial feeding position, the second gear 463 on one side of the negative pressure box 41 is in the initial meshing state with the second rack 471 on the worktable 1. At this time, the detection plate 35 begins to move slowly under the drive of the continuous detection component 3 (the initial moving distance is only used to trigger the negative pressure and does not enter the detection area), driving the negative pressure box 41 to move synchronously.

[0072] During the movement of the negative pressure box 41, the second gear 463 on its outer wall transmission frame 46 meshes with the second rack 471 fixed on the support rod 47. The second gear 463 rotates clockwise around the shaft 461 (taking the initial view of the equipment as an example). Since the first gear 462 and the second gear 463 are fixed at both ends of the shaft 461 respectively, the shaft 461 rotates synchronously with the second gear 463, thereby driving the first gear 462 to rotate synchronously clockwise. The first gear 462 meshes with the first rack 451 on the limiting plate 45. Under the rotation of the first gear 462, the first rack 451 slides along the limiting plate 45 away from the negative pressure box 41.

[0073] The horizontal plate 452, fixed at one end of the first rack 451, moves synchronously with the rack, thereby driving the intermediate frame 453 on the horizontal plate 452 to move outward from the auxiliary negative pressure chamber 44. The sealing plate 454 at one end of the intermediate frame 453 is rigidly connected to the intermediate frame 453. Therefore, the sealing plate 454 slides synchronously away from the vent 441 within the auxiliary negative pressure chamber 44. At this time, the cavity space inside the auxiliary negative pressure chamber 44 increases due to the movement of the sealing plate 454. The auxiliary negative pressure chamber 44 is only connected to the main negative pressure chamber 43 through the vent 441, causing the main negative pressure chamber 43 to form an internal shape. A stable negative pressure environment consistent with the auxiliary negative pressure chamber 44 is formed. The main negative pressure chamber 43 is connected to the internal cavity of the hollow stage 42 through multiple sets of vent pipes 422. The negative pressure is further transmitted to multiple adsorption nozzles 421 on the hollow stage 42. Under the action of negative pressure, the port of the adsorption nozzle 421 that contacts the surface of the motor shaft undergoes slight deformation, tightly fitting the outer circular surface of the motor shaft to form a closed adsorption space. As the negative pressure in the main negative pressure chamber 43 continues to stabilize, the adsorption force of the adsorption nozzle 421 on the motor shaft gradually increases, eventually positioning the motor shaft on the arc-shaped surface of the hollow stage 42.

[0074] As the detection plate 35 drives the negative pressure box 41 to move continuously, after the second gear 463 disengages from the second rack 471, the rotating shaft 461, the first gear 462 and the first rack 451 remain stationary, the sealing plate 454 is stable in the auxiliary negative pressure chamber 44, the negative pressure of the main negative pressure chamber 43 is constant, and the suction nozzle 421 continuously and steadily adsorbs the motor shaft.

[0075] Subsequently, the detection plate 35 drives the motor shaft to the detection station, the drive motor 32 stops temporarily, and the roughness detector 271 starts. At this time, the operator rotates the handwheel 221 and adjusts the precise position of the detection head 272 so that the detection head 272 is in contact with the surface of the motor shaft and slides to collect roughness data and generate detection results in real time. After the detection is completed, the detection plate 35 continues to move, and the second gear 463 gradually meshes with the third rack 481.

[0076] Because the third rack 481 and the second rack 471 are located on both sides of the second gear 463, when the negative pressure box 41 moves, the second gear 463 will rotate counterclockwise when it comes into contact with the third rack 481. This will drive the first gear 462 to reverse the transmission through the rotating shaft 461, pushing the first rack 451 closer to the negative pressure box 41. The sealing plate 454 will move towards the vent 441, the space of the auxiliary negative pressure chamber 44 will decrease and the air pressure will increase. The negative pressure in the main negative pressure chamber 43 will gradually dissipate, and the suction force of the suction nozzle 421 will disappear, making it easier for the staff to take the motor shaft whose roughness data has been tested.

[0077] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A shaft parameter detection device, characterized in that, include: Workbench (1); Test the height adjustment component (2), which is installed on the workbench (1); A continuous detection assembly (3) is mounted on a workbench (1), the continuous detection assembly (3) including a detection plate (35) that can move laterally. The negative pressure positioning component (4) is installed on the detection plate (35). The negative pressure positioning component (4) includes multiple sets of negative pressure boxes (41) installed on the detection plate (35). Each negative pressure box (41) is equipped with a hollow stage (42). Multiple sets of suction nozzles (421) are connected to the hollow stage (42). The negative pressure box (41) is provided with a main negative pressure chamber (43) that communicates with the hollow stage (42). The negative pressure box (41) is provided with an auxiliary negative pressure chamber (44) that communicates with the main negative pressure chamber (43). A first rack (451) slides on one side of the negative pressure box (41). An intermediate frame (453) is installed on the first rack (451). A sealing plate (454) that can slide in the auxiliary negative pressure chamber (44) is installed on the intermediate frame (453). A rotating shaft (461) is rotatably connected to one side of the negative pressure box (41). A first gear (462) that can mesh with a first rack (451) is installed at one end of the rotating shaft (461), and a second gear (463) is installed at the other end of the rotating shaft (461). A second rack (471) and a third rack (481) that are located on both sides of the second gear (463) and can mesh with the second gear (463) are installed on the worktable (1).

2. The shaft parameter detection device according to claim 1, characterized in that: The detection height adjustment component (2) includes a first assembly frame (21), a first one-way screw (22) is rotatably connected inside the first assembly frame (21), a first slider (23) is sleeved on the body of the first one-way screw (22), and an adapter plate (24) is installed on one side of the first slider (23).

3. The shaft parameter detection device according to claim 2, characterized in that: A handwheel (221) is installed at one end of the first one-way lead screw (22).

4. The shaft parameter detection device according to claim 2, characterized in that: An assembly frame (27) is installed on the adapter plate (24), and a roughness tester (271) is installed on one side of the assembly frame (27), and a test head (272) is installed on the roughness tester (271).

5. The shaft parameter detection device according to claim 1, characterized in that: The continuous detection assembly (3) further includes a second assembly frame (31) installed on the workbench (1). A drive motor (32) is installed at one end of the second assembly frame (31). The output end of the drive motor (32) extends into the second assembly frame (31) and is coaxially mounted with a second one-way screw (33). A second slider (34) is sleeved on the body of the second one-way screw (33). The detection plate (35) is installed on the second slider (34). Two sets of second guide rods (36) are installed inside the second assembly frame (31), and a second guide block (37) that can slide on the second guide rods (36) is installed on the lower part of the detection plate (35).

6. The shaft parameter detection device according to claim 1, characterized in that: A support plate (48) is installed on the other side of the workbench (1), and the third rack (481) is installed on the support plate (48).

7. The shaft parameter detection device according to claim 1, characterized in that: Two sets of support rods (47) are installed on the workbench (1), and the second rack (471) is installed on the support rods (47).

8. The shaft parameter detection device according to claim 1, characterized in that: A limiting plate (45) is installed on one side of the negative pressure box (41), and the first rack (451) can slide along the limiting plate (45).

9. The shaft parameter detection device according to claim 1, characterized in that: A horizontal plate (452) is installed at one end of the first rack (451), and the intermediate frame (453) is installed on the horizontal plate (452).

10. A shaft parameter detection device according to claim 1, characterized in that: A transmission frame (46) is installed on one side of the negative pressure box (41), and the rotating shaft (461) is rotatably connected to the transmission frame (46).

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