A quality inspection device for powder metallurgy rotors

Abstract

The present invention discloses a quality inspection device for powder metallurgy rotors, which relates to the field of rotor processing technology, and comprises a shell, wherein the shell is fixedly connected to a rotating shaft, a through hole is provided on the outer side of the shell, an annular groove is provided on the inner wall of the shell cavity, a rotating rod is slidably connected to the inner wall of the annular groove, a fixed plate is rotatably connected to the outer side of the rotating rod, the fixed plate penetrates the shell through the through hole, and a contact plate is fixedly connected to the end of the fixed plate away from the rotating rod. The quality inspection device for powder metallurgy rotors, through the mutual repulsion between multiple fixed plates, the contact plate is tightly fitted with the inside of the rotor to fix the rotor, thereby preventing the rotor from shifting during the detection process, resulting in inaccurate detection data, and at the same time, the detection device can fix and detect rotors of different models, different rotor shaft diameters, and different weights, thereby improving the applicability of the detection device.

Description

Technical Field

[0001] The invention relates to the technical field of rotor processing, in particular to a quality detection device for powder metallurgy rotors. Background Art

[0002] In the motor, the rotor is the rotating part. The rotor is mainly composed of a shaft, a rotor core and a rotor winding. The performance of the motor directly affects the performance of the main product. Therefore, strict quality inspection is required for the performance of the motor. Dynamic balancing test is required before the rotor is installed in the motor. Dynamic balancing test is the most critical quality parameter for measuring the motor rotor. A rotor with good dynamic balance will not produce vibration and noise when rotating.

[0003] In the process of testing the dynamic balance of the rotor, if the rotors with shafts of different sizes cannot be fixed, different rotors cannot be tested, which will lead to limitations in use. In the process of testing the rotor, the rotor is not clamped firmly, causing strong vibration of the rotor, which affects the test results. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A quality inspection device for powder metallurgy rotors, comprising a frame, a motor is fixedly connected to the bottom of the frame, a rotating shaft is rotatably connected to the middle of the top of the frame, and a sliding groove is opened on the top of the frame;

[0005] A connecting assembly is rotatably connected to the frame, and the output end of the motor is fixedly connected to the rotating shaft through the connecting assembly

[0006] A fixing component, wherein the fixing component is fixedly connected to the rotating shaft. By symmetrically arranging the fixing components on the rotating shaft, rotors of different models, different rotor shaft diameters, and different weights can be fixed, thereby avoiding instability caused by a single fixation;

[0007] A detection component, the detection component is fixedly mounted on the top of the frame, there are two detection components, and the two detection components are symmetrically arranged with the fixed component as the center;

[0008] In which, the fixing assembly includes a shell, which is fixedly connected to the rotating shaft, a through hole is provided on the outer side of the shell, and an annular groove is provided on the inner wall of the shell cavity, and the number of the annular grooves is three, and the three annular grooves are evenly distributed with the rotating shaft as the center, a rotating rod is slidably connected to the inner wall of the annular groove, and a fixing plate is rotatably connected to the outer side of the rotating rod, the fixing plate is magnetic, and the magnetism of the three fixing plates is the same, and in the initial state, the rotating rod drives the fixing plate to be located at the end of the annular groove away from the rotating shaft, and the rotor is placed on the fixing assembly so that the inner wall of the rotor contacts the contact plate, so that the rotor exerts force on the contact plate, so that the fixing plate is forced to drive the rotating rod to slide on the inner wall of the annular groove, and then under the action of the mutual repulsion between the multiple fixing plates, the contact plate is tightly fitted with the inside of the rotor to fix the rotor, so as to prevent the rotor from shifting during the detection process, resulting in inaccurate detection data. , and at the same time, the detection device can fix and detect rotors of different models, different rotor shaft diameters, and different weights, thereby improving the applicability of the detection device. The fixing plate passes through the shell through the through hole, and the end of the fixing plate away from the rotating rod is fixedly connected with a contact plate, and a limiting groove is provided on the outside of the fixing plate near the through hole, and a sliding groove is provided inside the shell, and a slide plate is slidably connected to the inner wall of the sliding groove. By arranging the sliding groove and the sliding groove, the fixing plate slides inside the sliding groove during the movement, which plays a guiding role. At the same time, adjacent sliding plates on one side of the fixing plate are squeezed during the sliding process, so that the slide plate can be located inside the limiting groove on the fixing plate, thereby preventing external dust from entering the shell through the through hole, effectively extending the service life of the parts, and the slide plate is located inside the shell, and the end of the slide plate close to the fixing plate is located inside the limiting groove.

[0009] Preferably, a square groove is provided inside the shell, the square groove is located above the fixed plate, the inner wall of the square groove is slidably connected to the limiting assembly, a through groove is provided on the top of the fixed plate near the limiting assembly, a circular groove is provided on one side of the fixed plate near the rotating shaft, and the circular groove is located on the same vertical plane of the through groove.

[0010] Preferably, the limit assembly includes a fixing ring, the fixing ring is fixedly connected to the rotating shaft, the rotating shaft passes through the fixing ring, the outer side of the fixing ring is fixedly connected to a square plate, the square plate is located in the through groove, and the top of the square plate is slidably connected to a sliding block. After the rotor is fixed, the motor is connected to the external power supply, the motor drives the rotating shaft to rotate through the connecting assembly, and the rotating shaft drives the fixing ring to rotate under the action of centrifugal force. The sliding block moves on the square plate in a direction away from the fixing ring. At this time, the round rod is engaged with the circular groove of the fixing plate along with the sliding block to avoid that the fixing plate drives the contact plate to move during the detection process, thereby causing the rotor to deflect and the detection data to be inaccurate. The sliding block is located in the square groove, and the sliding block is slidably connected to the square groove. A compression spring is fixedly connected to the outer side of the sliding block, and one end of the compression spring away from the sliding block is fixedly connected to the inner wall of the square groove. The bottom of the square plate is slidably connected to a round rod, the round rod is fixedly connected to the sliding block, and the round rod is engaged and adapted with the circular groove.

[0011] Preferably, the connecting assembly includes an intermediate cylinder, both ends of the intermediate cylinder are fixedly connected with connecting cylinders, there are two connecting cylinders, the two connecting cylinders are symmetrically arranged with the intermediate cylinder as the center, the connecting cylinder located at the top of the intermediate cylinder is fixedly connected to the rotating shaft, the connecting cylinder located at the bottom of the intermediate cylinder is fixedly connected to the output end of the motor, the inner wall of the connecting cylinder is provided with a cavity, when the rotating shaft drives the rotor to rotate, the unbalanced rotor will vibrate, thereby driving the rotating shaft to vibrate slightly, the rotating shaft contacts and squeezes the U-shaped plate, and the U-shaped plate is forced to move in the direction away from the rotating shaft, so that the two sides of the U-shaped plate exert a force on the spring plate , thereby reducing vibration and causing damage to the motor. By setting up a connecting assembly, it is avoided that the motor is damaged by rotor vibration during the inspection process. The inner wall of the cavity is slidably connected with a U-shaped plate, and the U-shaped plate passes through the connecting tube. One end of the cavity away from the U-shaped plate is fixedly connected with a limiting plate, and the U-shaped plate and the limiting plate are alternately arranged. The limiting plate is trapezoidal, and the adjacent sides of adjacent U-shaped plates are located inside the limiting plate. By setting the limiting plate, the deformation of the U-shaped plate is limited, and the inner wall of the limiting plate is fixedly connected with a limiting ball, and the outer side of the U-shaped plate is fixedly connected with a spring plate, and the two ends of the spring plate are fixedly connected to adjacent U-shaped plates.

[0012] Preferably, the detection component includes a slider, the slider is slidably connected to the sliding groove, the top of the slider is fixedly connected to a supporting rod, the outer side of the supporting rod is fixedly connected to a cylinder, the supporting rod passes through the cylinder, the outer side of the cylinder is provided with a through hole, the outer side of the cylinder is fixedly connected to a limiting rod, by providing a limiting rod and a contact plate, the rotor is fixed axially and radially, and the vibration of the rotor can be effectively reduced, the inner part of the supporting rod is slidably connected to a fixing rod, and the side of the fixing rod close to the rotating shaft is fixedly connected to a ball, after the rotor is fixed, the slider moves in the sliding groove so that the outer surface of the ball contacts the outer surface of the rotor, at this time the rotating shaft drives the rotor to rotate through the fixing component, thereby detecting the dynamic balance of the rotor, the unbalanced rotor will generate vibration and noise when rotating, when When the rotor vibrates, the rotor squeezes the ball, and the ball exerts force on the elastic plate. When the vibration of the rotor is within a normal error, the elastic properties of the elastic plate can play a buffering role. When the vibration exceeds the error range, the fixing rod drives the positioning rod to move inside the positioning groove, so that detection can be performed according to the distance moved by the positioning rod. By setting a plurality of balls, different positions of the rotor can be detected to improve the accuracy of the detection data. The fixing rod is fixedly connected to the positioning rod at one end away from the ball, and the elastic plate is fixedly connected to the outer side of the fixing rod. The side of the supporting rod away from the ball is fixedly connected to a fixing cylinder, and a positioning groove is provided on the outer side of the fixing cylinder close to the positioning rod, and the positioning groove is provided with a groove, and a protrusion is provided on the outer side of the positioning rod, and the positioning rod and the positioning groove are adapted through the groove and the protrusion.

[0013] The present invention provides a quality inspection device for powder metallurgy rotors. It has the following beneficial effects:

[0014] 1. The quality inspection device for powder metallurgy rotors, through the mutual repulsion between multiple fixing plates, makes the contact plate fit tightly with the inside of the rotor to fix the rotor, thereby preventing the rotor from shifting during the inspection process, resulting in inaccurate inspection data. At the same time, the inspection device can fix and inspect rotors of different models, different rotor shaft diameters, and different weights, thereby improving the applicability of the inspection device.

[0015] 2. In the quality inspection device for powder metallurgy rotors, under the action of centrifugal force, the sliding block moves on the square plate in the direction away from the fixed ring. At this time, the round rod is engaged with the circular groove on the fixed plate along with the sliding block, so as to avoid the fixed plate driving the contact plate to move during the inspection process, thereby causing the rotor to deflect and the inspection data to be inaccurate.

[0016] 3. The quality inspection device for powder metallurgy rotors uses a slide plate and a slide groove to enable the fixed plate to slide inside the slide groove during movement, thereby playing a guiding role. At the same time, adjacent slide plates located on one side of the fixed plate are squeezed during the sliding process, so that the slide plate can be located inside the limit groove on the fixed plate, thereby preventing external dust from entering the shell through the through hole, and effectively extending the service life of the parts.

[0017] 4. The quality inspection device for powder metallurgy rotors is provided with a connection component, so that the unbalanced rotor will vibrate, thereby driving the rotating shaft to vibrate slightly. The rotating shaft contacts and squeezes the U-shaped plate, and the U-shaped plate is forced to move away from the rotating shaft, so that the two sides of the U-shaped plate exert force on the spring plate, thereby reducing vibration and avoiding damage to the motor caused by rotor vibration during the inspection process.

[0018] 5. The quality inspection device for powder metallurgy rotors can play a buffering role by utilizing the elastic properties of the elastic plate 38. When the vibration exceeds the error range, the fixing rod 36 drives the positioning rod 39 to move inside the positioning groove 311, so that the inspection can be performed according to the moving distance of the positioning rod 39. By setting a plurality of balls 37, different positions of the rotor can be inspected, thereby improving the accuracy of the inspection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of a quality inspection device for a powder metallurgy rotor according to the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of a partial cross-sectional view of the fixing assembly of the present invention;

[0024] Figure 6 It is a schematic diagram of the local structure of the fixing assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0027] Fig. 9 It is a schematic diagram of a partial cross-sectional view of the connection assembly of the present invention;

[0028] Fig.10 This is a schematic diagram of the structure of the detection component of the present invention;

[0029] Fig.11 It is a schematic diagram of the local structure of the detection component of the present invention.

[0030] In the figure: 1, frame; 2, motor; 3, detection assembly; 31, slider; 32, support rod; 33, cylinder; 34, through-hole; 35, limit rod; 36, fixing rod; 37, ball; 38, elastic plate; 39, positioning rod; 310, fixing cylinder; 311, positioning groove; 4, fixing assembly; 41, shell; 42, through-hole; 43, slide plate; 44, fixing plate; 45, contact plate; 46, rotating rod; 47, limit assembly Parts; 471, fixing ring; 472, square plate; 473, sliding block; 474, compression spring; 475, round rod; 48, ring groove; 49, through groove; 410, round groove; 411, limiting groove; 412, square groove; 413, sliding groove; 5, connecting assembly; 51, intermediate cylinder; 52, connecting cylinder; 53, cavity; 54, limiting plate; 55, spring plate; 56, limiting ball; 57, U-shaped plate; 6, rotating shaft; 7, sliding groove. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0032] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution: a quality inspection device for powder metallurgy rotors, comprising a frame 1, a motor 2 is fixedly connected to the bottom of the frame 1, a rotating shaft 6 is rotatably connected to the middle of the top of the frame 1, and a sliding groove 7 is opened on the top of the frame 1;

[0033] The connecting component 5 is rotatably connected to the frame 1, and the output end of the motor 2 is fixedly connected to the rotating shaft 6 through the connecting component 5.

[0034] The fixing component 4 is fixedly connected to the rotating shaft 6. By symmetrically arranging the fixing components 4 on the rotating shaft 6, rotors of different models, different rotor shaft diameters, and different weights can be fixed, thereby avoiding instability caused by a single fixation;

[0035] A detection component 3, the detection component 3 is fixedly installed on the top of the frame 1, there are two detection components 3, and the two detection components 3 are symmetrically arranged with the fixed component 4 as the center;

[0036] The fixing assembly 4 includes a shell 41, which is fixedly connected to the rotating shaft 6. A through hole 42 is provided on the outer side of the shell 41. An annular groove 48 is provided on the inner wall of the shell 41 cavity. There are three annular grooves 48, which are evenly distributed around the rotating shaft 6. A rotating rod 46 is slidably connected to the inner wall of the annular groove 48. A fixing plate 44 is rotatably connected to the outer side of the rotating rod 46. The fixing plate 44 has magnetism, and the magnetism of the three fixing plates 44 of the fixing plate is the same. In the initial state, the rotating rod 46 drives the fixing plate 44 to be located at the end of the annular groove 48 away from the rotating shaft 6, and the rotor is placed on the fixing assembly 4, so that the inner wall of the rotor contacts the contact plate 45, so that the rotor exerts a force on the contact plate 45, so that the fixing plate 44 is forced to drive the rotating rod 46 to slide on the inner wall of the annular groove 48, and then under the action of the mutual repulsion between the multiple fixing plates 44, the contact plate 45 is tightly fitted with the inside of the rotor to fix the rotor, so as to prevent the rotor from shifting during the detection process, resulting in inaccurate detection data, and at the same time make the detection device The device can fix and detect rotors of different models, different rotor shaft diameters, and different weights, thereby improving the applicability of the detection device. The fixing plate 44 passes through the shell 41 through the through hole 42. The end of the fixing plate 44 away from the rotating rod 46 is fixedly connected with a contact plate 45. A limiting groove 411 is provided on the outer side of the fixing plate 44 near the through hole 42. A sliding groove 413 is provided inside the shell 41. A slide plate 43 is slidably connected to the inner wall of the sliding groove 413. By arranging the slide plate 43 and the sliding groove 413, the fixing plate 44 slides inside the sliding groove 413 during the movement, thereby playing a guiding role. At the same time, adjacent slide plates 43 located on one side of the fixing plate 44 are squeezed during the sliding process, so that the slide plate 43 can be located inside the limiting groove 411 on the fixing plate 44, thereby preventing external dust from entering the shell 41 through the through hole 42, thereby effectively extending the service life of the parts. The slide plate 43 is located inside the shell 41, and one end of the slide plate 43 close to the fixing plate 44 is located inside the limiting groove 411.

[0037] The second embodiment is based on the first embodiment. Figure 6 to Figure 7 As shown, a square groove 412 is opened inside the shell 41, and the square groove 412 is located above the fixed plate 44. The inner wall of the square groove 412 is slidably connected to the limiting component 47. A through groove 49 is opened at the top of the fixed plate 44 near the limiting component 47. A circular groove 410 is opened on one side of the fixed plate 44 near the rotating shaft 6, and the circular groove 410 is located on the same vertical plane as the through groove 49.

[0038] The limiting assembly 47 includes a fixing ring 471, which is fixedly connected to the rotating shaft 6. The rotating shaft 6 passes through the fixing ring 471. A square plate 472 is fixedly connected to the outer side of the fixing ring 471. The square plate 472 is located inside the through groove 49. A sliding block 473 is slidably connected to the top of the square plate 472. After the rotor is fixed, the motor 2 is connected to an external power supply to work. The motor 2 drives the rotating shaft 6 to rotate through the connecting assembly 5, and the rotating shaft 6 drives the fixing ring 471 to rotate. Under the action of centrifugal force, the sliding block 473 moves on the square plate 472 in a direction away from the fixing ring 471. At this time, the round rod 475 moves along with the sliding block 473 and The circular groove 410 on the fixed plate 44 is snap-fitted to prevent the fixed plate 44 from driving the contact plate 45 to move during the detection process, thereby causing the rotor to deflect and the detection data to be inaccurate. The sliding block 473 is located inside the square groove 412, and the sliding block 473 is slidably connected to the square groove 412. A compression spring 474 is fixedly connected to the outer side of the sliding block 473, and one end of the compression spring 474 away from the sliding block 473 is fixedly connected to the inner wall of the square groove 412. A round rod 475 is slidably connected to the bottom of the square plate 472, and the round rod 475 is fixedly connected to the sliding block 473, and the round rod 475 is snap-fitted to the circular groove 410.

[0039] The third embodiment is based on the first and second embodiments. Figures 8 to 9 As shown, the connecting assembly 5 includes an intermediate cylinder 51, and the two ends of the intermediate cylinder 51 are fixedly connected with connecting cylinders 52. There are two connecting cylinders 52, and the two connecting cylinders 52 are symmetrically arranged with the intermediate cylinder 51 as the center. The connecting cylinder 52 located at the top of the intermediate cylinder 51 is fixedly connected to the rotating shaft 6, and the connecting cylinder 52 located at the bottom of the intermediate cylinder 51 is fixedly connected to the output end of the motor 2. The inner wall of the connecting cylinder 52 is provided with a cavity 53. When the rotating shaft 6 drives the rotor to rotate, the unbalanced rotor will vibrate, thereby driving the rotating shaft 6 to vibrate slightly. The rotating shaft 6 contacts and squeezes the U-shaped plate 57, and the U-shaped plate 57 is forced to move in the direction away from the rotating shaft 6, so that the two sides of the U-shaped plate 57 exert force on the spring plate 55, thereby In order to reduce vibration and cause damage to the motor, a connecting component 5 is provided to prevent the rotor vibration from causing damage to the motor 2 during the inspection process. The inner wall of the cavity 53 is slidably connected with a U-shaped plate 57, and the U-shaped plate 57 passes through the connecting tube 52. The end of the cavity 53 away from the U-shaped plate 57 is fixedly connected to a limiting plate 54. The U-shaped plate 57 and the limiting plate 54 are alternately arranged. The limiting plate 54 is trapezoidal in arrangement. The adjacent sides of adjacent U-shaped plates 57 are located inside the limiting plate 54. By providing the limiting plate 54, the deformation of the U-shaped plate 57 is limited. The inner wall of the limiting plate 54 is fixedly connected to the limiting ball 56, and the outer side of the U-shaped plate 57 is fixedly connected with a spring plate 55. The two ends of the spring plate 55 are fixedly connected to the adjacent U-shaped plates 57.

[0040] For the fourth embodiment, please refer to Figure 10 to Figure 11As shown, the detection component 3 includes a slider 31, which is slidably connected to the sliding groove 7. A supporting rod 32 is fixedly connected to the top of the slider 31, and a cylinder 33 is fixedly connected to the outer side of the supporting rod 32. The supporting rod 32 penetrates the cylinder 33, and a through hole 34 is opened on the outer side of the cylinder 33. A limiting rod 35 is fixedly connected to the outer side of the cylinder 33. By setting the limiting rod 35 and the contact plate 45, the rotor is fixed axially and radially, which can effectively reduce the vibration of the rotor. A fixing rod 36 is slidably connected to the inside of the supporting rod 32, and a ball 37 is fixedly connected to the side of the fixing rod 36 close to the rotating shaft 6. After the rotor is fixed, the slider 31 moves inside the sliding groove 7 so that the outer surface of the ball 37 contacts the outer surface of the rotor. At this time, the rotating shaft 6 drives the rotor to rotate through the fixing component 4, so as to detect the dynamic balance of the rotor. An unbalanced rotor will generate vibration and noise when rotating. When the rotor vibrates, the rotor The ball 37 is squeezed, and the ball 37 applies force to the elastic plate 38. When the vibration of the rotor is in a normal error, the elastic performance of the elastic plate 38 can play a buffering role. When the vibration exceeds the error range, the fixing rod 36 drives the positioning rod 39 to move inside the positioning groove 311, so that detection can be performed according to the distance moved by the positioning rod 39. By arranging multiple balls 37, different positions of the rotor can be detected to improve the accuracy of the detection data. The end of the fixing rod 36 away from the ball 37 is fixedly connected to the positioning rod 39, and the outer side of the fixing rod 36 is fixedly connected to the elastic plate 38. The side of the supporting rod 32 away from the ball 37 is fixedly connected to the fixing cylinder 310. The fixing cylinder 310 is provided with a positioning groove 311 on the outer side close to the positioning rod 39, and the positioning groove 311 is provided with a groove. The outer side of the positioning rod 39 is provided with a protrusion, and the positioning rod 39 is adapted to the positioning groove 311 through the groove and the protrusion.

[0041] When in use, the rotor is placed on the fixing assembly 4 so that the inner wall of the rotor contacts the contact plate 45, so that the rotor applies force to the contact plate 45, so that the fixing plate 44 is forced to drive the rotating rod 46 to slide on the inner wall of the annular groove 48, and then under the action of the mutual repulsion between the multiple fixing plates 44, the contact plate 45 fits tightly with the inside of the rotor to fix the rotor, thereby preventing the rotor from shifting during the detection process, resulting in inaccurate detection data, and at the same time enabling the detection device to fix rotors of different models, different rotor shaft diameters, and different weights.

[0042] After the rotor is fixed, the slider 31 moves inside the sliding groove 7 so that the outer surface of the ball 37 contacts the outer surface of the rotor. At this time, the shaft 6 drives the rotor to rotate through the fixing component 4, so as to detect the dynamic balance of the rotor. The unbalanced rotor will generate vibration and noise when rotating. When the rotor vibrates, the rotor squeezes the ball 37, and the ball 37 applies force to the elastic plate 38. When the vibration of the rotor is within the normal error, the elastic properties of the elastic plate 38 can play a buffering role. When the vibration exceeds the error range, the fixing rod 36 drives the positioning rod 39 to move inside the positioning groove 311, so that detection can be performed according to the distance moved by the positioning rod 39.

[0043] The motor 2 is connected to an external power supply and drives the rotating shaft 6 to rotate through the connecting component 5, and the rotating shaft 6 drives the fixed ring 471 to rotate. Under the action of centrifugal force, the sliding block 473 moves on the square plate 472 in the direction away from the fixed ring 471. At this time, the round rod 475 is engaged with the circular groove 410 on the fixed plate 44 along with the sliding block 473, so as to avoid the fixed plate 44 driving the contact plate 45 to move during the detection process, thereby causing the rotor to deflect and the detection data to be inaccurate.

[0044] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A quality inspection device for powder metallurgy rotors, characterized in that: include: A frame (1), wherein a motor (2) is fixedly connected to the bottom of the frame (1), a rotating shaft (6) is rotatably connected to the middle of the top of the frame (1), and a sliding groove (7) is provided on the top of the frame (1); A connecting component (5), the connecting component (5) is rotatably connected to the frame (1), and the output end of the motor (2) is fixedly connected to the rotating shaft (6) via the connecting component (5) A fixing assembly (4), wherein the fixing assembly (4) is fixedly connected to the rotating shaft (6); A detection component (3), the detection component (3) being fixedly mounted on the top of the frame (1), the number of the detection components (3) being two, and the two detection components (3) being symmetrically arranged with the fixed component (4) as the center; The fixing assembly (4) comprises a shell (41), the shell (41) is fixedly connected to the rotating shaft (6), a through hole (42) is provided on the outer side of the shell (41), an annular groove (48) is provided on the inner wall of the cavity of the shell (41), the number of the annular grooves (48) is three, the three annular grooves (48) are evenly distributed around the rotating shaft (6), the inner wall of the annular groove (48) is slidably connected to a rotating rod (46), the outer side of the rotating rod (46) is rotatably connected to a fixing plate (44), and the fixing plate (44) is connected to the rotating shaft (6) by The through hole (42) passes through the shell (41); one end of the fixing plate (44) away from the rotating rod (46) is fixedly connected to the contact plate (45); a limiting groove (411) is provided on the outer side of the fixing plate (44) close to the through hole (42); a sliding groove (413) is provided inside the shell (41); a slide plate (43) is slidably connected to the inner wall of the sliding groove (413); the slide plate (43) is located inside the shell (41); and one end of the slide plate (43) close to the fixing plate (44) is located inside the limiting groove (411); A square groove (412) is provided inside the housing (41), the square groove (412) is located above the fixing plate (44), the inner wall of the square groove (412) is slidably connected to the limiting assembly (47), a through groove (49) is provided on the top of the fixing plate (44) close to the limiting assembly (47), a circular groove (410) is provided on one side of the fixing plate (44) close to the rotating shaft (6), and the circular groove (410) is located on the same vertical plane as the through groove (49), and the circular groove (410) is used for clamping and limiting under the action of centrifugal force.

2. The quality inspection device for powder metallurgy rotors according to claim 1, characterized in that: The limiting assembly (47) comprises a fixing ring (471), the fixing ring (471) being fixedly connected to the rotating shaft (6), the rotating shaft (6) passing through the fixing ring (471), a square plate (472) being fixedly connected to the outer side of the fixing ring (471), the square plate (472) being located inside the through groove (49), a sliding block (473) being slidably connected to the top of the square plate (472), the sliding block (473) being located inside the square groove (412), and the sliding block (473) being slidably connected to the square groove (412).

3. The quality inspection device for powder metallurgy rotors according to claim 2, characterized in that: A compression spring (474) is fixedly connected to the outer side of the sliding block (473); one end of the compression spring (474) away from the sliding block (473) is fixedly connected to the inner wall of the square groove (412); a round rod (475) is slidably connected to the bottom of the square plate (472); the round rod (475) is fixedly connected to the sliding block (473); and the round rod (475) is snap-fitted with the round groove (410).

4. The quality inspection device for powder metallurgy rotors according to claim 1, characterized in that: The connecting assembly (5) comprises an intermediate cylinder (51), and connecting cylinders (52) are fixedly connected to both ends of the intermediate cylinder (51). There are two connecting cylinders (52), and the two connecting cylinders (52) are symmetrically arranged with the intermediate cylinder (51) as the center. The connecting cylinder (52) located at the top of the intermediate cylinder (51) is fixedly connected to the rotating shaft (6).

5. The quality inspection device for powder metallurgy rotors according to claim 4, characterized in that: The connecting tube (52) located at the bottom of the intermediate tube (51) is fixedly connected to the output end of the motor (2); a cavity (53) is provided on the inner wall of the connecting tube (52); a U-shaped plate (57) is slidably connected to the inner wall of the cavity (53); and the U-shaped plate (57) passes through the connecting tube (52).

6. The quality inspection device for powder metallurgy rotors according to claim 5, characterized in that: One end of the cavity (53) away from the U-shaped plate (57) is fixedly connected to a limiting plate (54), the U-shaped plate (57) and the limiting plate (54) are arranged alternately, the inner wall of the limiting plate (54) is fixedly connected to a limiting ball (56), the outer side of the U-shaped plate (57) is fixedly connected to a spring plate (55), and both ends of the spring plate (55) are fixedly connected to adjacent U-shaped plates (57).

7. The quality inspection device for powder metallurgy rotors according to claim 1, characterized in that: The detection assembly (3) comprises a slider (31), the slider (31) being slidably connected to the sliding groove (7), a support rod (32) being fixedly connected to the top of the slider (31), a cylinder (33) being fixedly connected to the outer side of the support rod (32), the support rod (32) passing through the cylinder (33), and a through opening (34) being formed on the outer side of the cylinder (33).

8. The quality inspection device for powder metallurgy rotors according to claim 7, characterized in that: The outer side of the cylinder (33) is fixedly connected to a limiting rod (35), the inner side of the support rod (32) is slidably connected to a fixing rod (36), and the fixing rod (36) is fixedly connected to a side of the rotating shaft (6) that is fixedly connected to a ball (37).

9. The quality inspection device for powder metallurgy rotors according to claim 8, characterized in that: The end of the fixing rod (36) away from the ball (37) is fixedly connected to a positioning rod (39), the outer side of the fixing rod (36) is fixedly connected to an elastic plate (38), the side of the supporting rod (32) away from the ball (37) is fixedly connected to a fixing cylinder (310), and the fixing cylinder (310) is provided with a positioning groove (311) on the outer side close to the positioning rod (39).

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