A rotor shaft inspection tooling for motor production with an automatic fixing function

Abstract

The present invention provides a rotor shaft inspection tooling for motor production with an automatic fixing function, belonging to the technical field of motor production. It solves the technical problems of existing rotor shaft inspection equipment, such as low inspection efficiency, lack of comparison function, and large error. It includes a tooling chassis and a conveyor. The upper part of the tooling chassis is an operation box, and the lower part is a cooling box. There are several evenly distributed placement racks on the conveyor. Inside the operation box, there are successively a laser inspection mechanism, a fixed lifting mechanism, a probe inspection mechanism, and a hole inspection mechanism. There are several additional lights inside the operation box, and a cooling fan is provided inside the cooling box. The present invention can accommodate rotor shafts with different diameters and lengths for intermittent conveying; it can realize the inspection of the length of the rotor shaft twice, and at the same time, it can realize the inspection of the diameter and length of each section of the rotor shaft twice; through the hole inspection mechanism, the diameter and depth of the holes on the rotor shaft are inspected, and the inspection is accurate and fast.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor production, and relates to a rotor shaft inspection tooling, in particular to a rotor shaft inspection tooling for motor production with an automatic fixing function. Background Art

[0002] The main function of a motor is to generate driving torque. As a power source for electrical appliances or various machines, the motor is commonly known as a "motor", which refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. A rotor refers to a rotating body supported by bearings. Objects such as optical discs that do not have a rotating shaft themselves can be regarded as a rotor when they are rigidly connected or an additional shaft is added.

[0003] When a motor is produced, a rotor shaft needs to be installed. The quality of the rotor shaft of the motor will directly affect the service life of the motor; the rotor shaft of the motor is an important component that bears the rotation of the rotor winding. The diameter sizes of different parts of the rotor shaft should be within the allowable error range, otherwise it will directly affect the service life of the motor. Therefore, before leaving the factory, the diameters of various parts of the rotor shaft need to be detected.

[0004] Existing detection devices generally can only measure the diameter of one part of the rotor shaft at a time, and the rotor shaft consists of multiple parts with different diameters, so multiple measurements are required. For devices that need to fix the rotor shaft first, the rotor shaft needs to be fixed again, and the fixing cannot ensure that the rotor shaft can be completely aligned with the device, resulting in measurement errors and cumbersome operations, leading to poor efficiency. Or manual measurement is used, and the measurement accuracy is not good and the speed is slow. Therefore, improving and modifying the above problems has become an urgent problem to be solved at present.

[0005] After retrieval, as disclosed in the Chinese patent document, a rotor shaft inspection tooling for motor production [Application No.: CN202020423455.5; Publication No.: CN211373451U]. This inspection tooling. The rotor shaft inspection tooling for motor production includes a carrier table; an avoidance round hole, which is opened at the top of the carrier table; a gantry, which is fixedly installed on the top of the carrier table; a first hydraulic cylinder, which is fixedly installed on the top of the gantry; a lifting carrier, which is slidably installed on the inner walls of both sides of the gantry, and the output shaft of the first hydraulic cylinder extends into the gantry and is fixedly connected to the top of the lifting carrier; two mounting plates, both of which are fixedly installed at the bottom of the lifting carrier. Although it can detect the rotor shaft, the operation is convenient and labor is saved, but the inspection efficiency is low, it cannot perform comparative inspection, and the inspection error is relatively large.

[0006] Based on this, we propose a rotor shaft inspection tooling for motor production with an automatic fixing function, which can meet the inspection of rotor shafts with different diameters and lengths; realize the inspection of the length of the rotor shaft twice, and at the same time realize the inspection of the diameter and length of each section of the rotor shaft twice; inspect the diameter and depth of the hole in the rotor shaft, and the inspection is accurate and fast. Summary of the Invention

[0007] The purpose of the present invention is to address the above problems existing in the prior art and propose a rotor shaft inspection tooling for motor production with an automatic fixing function. The technical problem to be solved by this invention is: how to achieve the inspection of the length, the diameter of each section, and the diameter and depth of the hole in the rotor shaft for rotor shafts with different diameters and lengths.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A rotor shaft inspection tooling for motor production with an automatic fixing function includes a tooling box and a conveyor. The upper part of the tooling box is an operation box, and the lower part is a cooling box. The conveyor passes through the operation box, and there are several evenly distributed placement racks on the conveyor. Inside the operation box, there are successively a laser inspection mechanism, a fixed lifting mechanism, a probe inspection mechanism, and a hole inspection mechanism. There are several additional lights inside the operation box, and there is a cooling fan inside the cooling box. The air outlet of the cooling fan extends into the operation box.

[0010] Working principle of the present invention: The rotor shafts are sequentially placed on the corresponding placement racks. The conveyor drives several placement racks to move intermittently. When the first rotor shaft moves directly below the fixed lifting mechanism, the fixed lifting mechanism clamps and aligns the rotor shaft, jacks it up and fixes it, and then detects whether the length of the rotor shaft is qualified (within the error range). The fixed lifting mechanism raises the rotor shaft to a certain height and stably drives the rotor shaft to rotate. The laser inspection mechanism performs laser inspection on the rotor shaft to check whether the diameters of all parts of the rotor shaft are qualified, and at the same time checks the total length of the rotor shaft. The fixed lifting mechanism cooperates with the laser inspection mechanism for comparison. The length of the rotor shaft takes the average value of the two inspections. After laser inspection, the length of the diameter change of the rotor shaft is collected and transmitted to the probe inspection mechanism. The probe inspection mechanism abuts against the rotor shaft to perform probe inspection to check whether the diameters of all parts of the rotor shaft are qualified. The laser inspection and the probe inspection cooperate for comparison to check whether the inspection is qualified. After the comparison inspection is completed, it is placed back on the placement rack. The conveyor drives the placement rack to continue moving intermittently and moves to the hole inspection mechanism. The hole inspection mechanism inspects the diameter and depth of the hole (mainly the keyhole). After the inspection, the conveyor drives the placement rack to continue moving intermittently and discharges it. Each time it moves the distance between two placement racks, and the intermittent time is the time of the longest inspection step among them. During the inspection, the supplementary light lamp can be turned on to facilitate the staff to observe and perform preliminary installation and debugging. The cooling fan can supply cold air into the operation box to cool down each component.

[0011] A glass supplementary light window is provided on the upper part of the operation box. Observation windows are provided on both the front and rear sides of the operation box. A control screen area is provided on the front side of the operation box. Lifting foot cups are provided at the lower end of the cooling box.

[0012] With the above structure, the glass supplementary light window can supplement natural light, the observation window is convenient for the staff to observe, the control screen area can perform data debugging and at the same time collect and process data, and the lifting foot cups are used to adjust the level of the tooling box.

[0013] The conveyor includes a conveyor frame. Several conveyor adjustment legs are provided on the lower side of the conveyor frame. A conveyor belt is provided on the conveyor frame. An outlet cylinder is provided at the end of the conveyor frame. An outlet plate is provided on the lower side of the outlet cylinder. The placement rack includes a fixed bracket and a sliding bracket. The fixed bracket is fixed on the conveyor belt. The sliding bracket is slidably arranged inside the fixed bracket in an adjustable manner. The upper ends of the fixed bracket and the sliding bracket are respectively slidably provided with a first lifting frame and a second lifting frame in an adjustable manner.

[0014] With the above structure, the conveying adjusting leg can adjust the conveying rack to keep it horizontal. The conveyor belt drives the placement rack to move intermittently, driving the rotor shaft to move, moving the rotor shaft to the discharge cylinder, and discharging it from the discharge plate. According to the length of the rotor shaft, the length of the sliding bracket inserted into the fixed bracket is adjusted, thereby adjusting the distance between the first lifting frame and the second lifting frame, so that both ends of the rotor shaft are located outside the first lifting frame and the second lifting frame. According to the diameter of the rotor shaft (the diameter varies at different positions), the depth of the first lifting frame inserted into the fixed bracket and the depth of the second lifting frame inserted into the sliding bracket are adjusted to keep the rotor shaft horizontally placed.

[0015] The laser inspection mechanism includes a fixed plate fixed inside the operation box. A transverse screw member is fixed to the side of the fixed plate. A transverse sliding seat is provided on the transverse screw member in a driving connection. A longitudinal screw member is provided on the transverse sliding seat. A longitudinal sliding seat is provided on the longitudinal screw member in a driving connection. A supplementary light and a plurality of laser detectors are provided at the lower end of the longitudinal sliding seat.

[0016] With the above structure, according to the position of the rotor shaft, the longitudinal screw member drives the longitudinal sliding seat to lift, so that a plurality of laser detectors are aligned with the rotor shaft. The supplementary light is turned on, and the light shines on the rotor shaft. The transverse screw member drives the transverse sliding seat to move horizontally, thereby driving the longitudinal screw member horizontally, that is, driving a plurality of laser detectors to move horizontally. The laser detectors inspect the diameter of each section of the rotor shaft, the length of each section (sections with different diameters), and the total length.

[0017] The fixed lifting mechanism includes two symmetrically arranged lifting adjusting push rods and a sliding frame. The upper ends of the two lifting adjusting push rods are fixed to the inner top of the operation box. Both ends of the upper side of the sliding frame are fixed with positioning motors. The two positioning motors are both fixed to the lower ends of the corresponding lifting adjusting push rods. Two symmetric transmission screws are rotatably provided inside the sliding frame. A pulley pair is provided between the output shaft of the positioning motor and the end of the corresponding transmission screw. A clamping seat is provided on each of the two transmission screws in a driving connection. A plurality of guide wheels are rotatably provided on the clamping seat. The guide wheels abut against both sides of the sliding frame. Fixed clamping components are provided on the clamping seats. The two fixed clamping components are symmetrically arranged.

[0018] With the above structure, the output shaft of the positioning motor drives the corresponding transmission screw to rotate through the pulley pair. Thus, the transmission screw cooperates with the clamping seat, and through the cooperation of the guide wheel and the sliding frame, the two fixed clamping components are driven to move relatively. The distance between the two fixed clamping components is slightly larger than the length of the rotor shaft. The fixed clamping components clamp the rotor shaft. The rotor shaft is located in the middle of the fixed clamping components and is then tightened. The two fixed lifting mechanisms cooperate. When tightening, the length of the rotor shaft is detected. The two lifting adjusting push rods drive it to rise and move to the positions for laser inspection and probe inspection. The fixed clamping components drive the rotor shaft to rotate. The laser inspection mechanism and the probe inspection mechanism cooperate to perform laser inspection and probe inspection respectively.

[0019] The fixed clamping assembly includes a mounting seat, which is detachably arranged on the inner side of the corresponding clamping seat. The mounting seat is provided with an electric chuck, and the electric chuck is provided with a plurality of step clamping seats evenly distributed around the circumference. A fixed push rod is provided inside the mounting seat, and the telescopic end of the fixed push rod passes through the middle of the electric chuck.

[0020] With the above structure, the electric chuck drives the step clamping seat to clamp the rotor shaft so that the rotor shaft and the axis of the electric chuck are in line, and then the telescopic end of the fixed push rod is pushed out, and the fixed push rods of the two fixed clamping assemblies cooperate, and the telescopic ends of the two fixed push rods support the two ends of the rotor shaft for fixation. At this time, according to the pushed-out length of the two fixed push rods, the distance between the telescopic ends of the two fixed push rods is detected, which is the length of the rotor shaft. The laser inspection mechanism cooperates to detect the length of the rotor shaft, and the fixed lifting mechanism cooperates with the laser inspection mechanism for comparison. The length of the rotor shaft takes the average value of the two inspections.

[0021] The probe inspection mechanism includes two mounting plates, which are fixed on the top inner side of the operating box. A lead screw is rotatably provided between the two mounting plates. Two sliding rods are fixed between the two mounting plates. The lead screw is located between the two sliding rods. A shift slide is provided on the lead screw for transmission. The shift slide is slidably arranged on the two sliding rods. An adjusting motor is provided on one of the mounting plates. The output shaft of the adjusting motor is transmission-connected with one end of the lead screw. A rack rod is provided at the lower end of the shift slide. A lifting adjustment seat is slidably provided on the rack rod. A lifting motor is fixed on the lifting adjustment seat. The output shaft of the lifting motor extends into the interior of the lifting adjustment seat. A gear is fixed on the output shaft of the lifting motor. The gear is meshed with the rack rod. A mounting head is provided on the lifting adjustment seat. A position adjustment push rod is fixed on the mounting head. A surface probe is fixed on the telescopic end of the position adjustment push rod.

[0022] By adopting the above structure, the position of the mounting head on the position adjustment push rod is adjusted so that the surface probe can contact the surface of the rotor shaft. According to the axial height of the rotor shaft, the output shaft of the lifting motor drives the gear to rotate, and the gear is engaged with the rack rod, which can drive the lifting adjustment seat to lift and slide on the rack rod, so that the surface probe is directly opposite to the axis of the rotor shaft. The output shaft of the adjustment motor drives the screw rod to rotate, and the screw rod cooperates with the shift slide seat to move horizontally along the two slide rods. The telescopic end of the position adjustment push rod is telescopically changed to drive the surface probe to extend or retract. According to the diameter of each section of the rotor shaft and the length of each section (different diameter sections) inspected by the laser inspection mechanism, the interference inspection of the surface probe is carried out, and the diameter of each section is further inspected. The two inspections are compared to obtain a more accurate diameter inspection.

[0023] The hole inspection mechanism includes a first mounting base, a second mounting base, and a lifting fixing plate. Two first lifting push rods are provided at the lower end of the first mounting base, and the two first lifting push rods are fixed on the conveyor frame. A first mounting base, a first rotating wheel set, and a frame are provided at the upper end of the first mounting base. A lifting electric push rod is provided on the frame, and a lifting plate is fixed on the telescopic end of the lifting electric push rod. A hole probe is provided at the lower end of the lifting plate, and a sliding rod is provided at the lower end of the lifting plate. The sliding rod is slidably arranged inside the first mounting base. A laser measuring instrument is provided on the frame. A second rotating wheel set is provided on the upper side of the second mounting base, and two second lifting push rods are provided on the lower side of the second mounting base. The two second lifting push rods are fixed on the conveyor frame. The positions of the first rotating wheel set and the second rotating wheel set are opposite and are respectively located on both sides of the conveyor belt. Two third lifting push rods are provided at the lower end of the lifting fixing plate, and the two third lifting push rods are fixed on the conveyor frame. A rotating motor is fixed at the upper end of the lifting fixing plate, and a rotating dial is fixed on the output shaft of the rotating motor.

[0024] With the above structure, according to the dimensions at both ends of the rotor shaft, the two first lifting push rods and the two second lifting push rods rise simultaneously, driving the first mounting base and the second mounting base to rise, so that the first rotating wheel set and the second rotating wheel set abut against both ends of the rotor shaft, driving the rotor shaft to rise, making the rotor shaft leave the placement rack. The two third lifting push rods drive the lifting fixing plate to descend, thereby driving the rotating motor to descend, and then driving the rotating dial to descend, so that the rotating dial abuts against the rotor shaft. The output shaft of the rotating motor drives the rotating dial to rotate, so that the rotating dial drives the rotor shaft to rotate on the first rotating wheel set and the second rotating wheel set. When the laser measuring instrument detects that the end of the rotor shaft is vertically upward, the output shaft of the rotating motor stops rotating. The telescopic end of the lifting electric push rod drives the lifting plate to descend, and then drives the hole probe to descend. The hole probe is inserted into the keyhole to detect the diameter and depth of the hole. After the detection is completed, the two first lifting push rods, the two second lifting push rods, and the two third lifting push rods reset, and the rotor shaft falls back above the placement rack and is conveyed out.

[0025] Compared with the prior art, the rotor shaft inspection tooling for motor production with an automatic fixing function has the following advantages:

[0026] Through the cooperation of the conveyor and several placement racks, it can meet the placement of rotor shafts with different diameters and lengths for intermittent conveying;

[0027] Through the cooperation of the fixed lifting mechanism and the laser inspection mechanism, the length of the rotor shaft is inspected twice, and at the same time, the laser inspection mechanism conducts a laser inspection on the rotor shaft to check whether the diameters of various parts of the rotor shaft are qualified and the length of the diameter change of the rotor shaft;

[0028] Through the cooperation of the fixed lifting mechanism and the probe inspection mechanism, the probe inspection of the rotor shaft is realized to check whether the diameters of all sections of the rotor shaft are qualified. At the same time, it cooperates with the laser inspection mechanism for comparative inspection to check whether the diameters of all sections of the rotor shaft are qualified;

[0029] The hole inspection mechanism inspects the diameter and depth of the holes on the rotor shaft, with accurate and rapid inspection;

[0030] The supplementary light is increased through the cooperation of the supplementary light lamp and the glass light supplement window, which is convenient for the staff to observe and for the preliminary installation and debugging. The cooling fan can supply cold air into the operation box to cool down each component. Brief Description of the Drawings

[0031] Figure 1 is the three-dimensional structure schematic diagram of the present invention.

[0032] Figure 2 is the partially cut-away three-dimensional structure schematic diagram of the present invention.

[0033] Figure 3 is the three-dimensional structure schematic diagram of the conveyor and the placement rack in the present invention.

[0034] Figure 4 is the three-dimensional structure schematic diagram of the laser inspection mechanism in the present invention.

[0035] Figure 5 is the three-dimensional structure schematic diagram of the fixed lifting mechanism in the present invention.

[0036] Figure 6 is the three-dimensional structure schematic diagram of the fixed clamping assembly in the present invention.

[0037] Figure 7 is the three-dimensional structure schematic diagram of the probe inspection mechanism in the present invention.

[0038] Figure 8 is the left three-dimensional structure schematic diagram of the hole inspection mechanism in the present invention.

[0039] Figure 9 is the right three-dimensional structure schematic diagram of the hole inspection mechanism in the present invention.

[0040] In the figure, 1 is a tooling box, 2 is a conveyor, 3 is a placement rack, 4 is a probe inspection mechanism, 5 is a warning light, 6 is a control panel area, 7 is an observation window, 8 is a lifting foot cup, 9 is a hole inspection mechanism, 10 is a fixed lifting mechanism, 11 is a laser inspection mechanism, 12 is a conveying adjustment leg, 13 is a conveying machine frame, 14 is a conveyor belt, 15 is a fixed bracket, 16 is a sliding bracket, 17 is a second lifting frame, 18 is a first lifting frame, 19 is a discharge cylinder, 20 is a discharge plate, 21 is a fixed plate, 22 is a transverse screw member, 23 is a transverse sliding seat, 24 is a longitudinal screw member, 25 is a longitudinal sliding seat, 26 is a supplementary light, 27 is a laser detector, 28 is an adjustment motor, 29 is a pulley pair, 30 is a transmission screw, 31 is a clamping seat, 32 is a guide wheel, 33 is a sliding frame, 34 is a fixed clamping assembly, 35 is a lifting adjustment push rod, 36 is an electric chuck, 37 is a fixed push rod, 38 is a stepped clamping seat, 39 is a mounting seat, 40 is an adjustment motor, 41 is a mounting plate, 42 is a screw, 43 is a sliding rod, 44 is a displacement sliding seat, 45 is a rack rod, 46 is a lifting motor, 47 is a lifting adjustment seat, 48 is a position adjustment push rod, 49 is a mounting head, 50 is a surface probe, 51 is a first lifting push rod, 52 is a first mounting base, 53 is a lifting plate, 54 is a first rotating wheel set, 55 is a lifting electric push rod, 56 is a frame, 57 is a third lifting push rod, 58 is a lifting fixed plate, 59 is a rotating motor, 60 is a rotating dial, 61 is a second rotating wheel set, 62 is a second mounting base, 63 is a second lifting push rod, 64 is a laser measuring instrument, 65 is a hole probe. Detailed implementation mode

[0041] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0042] As Figures 1-9 shown, the rotor shaft inspection tooling for motor production with an automatic fixing function includes a tooling box 1 and a conveyor 2. The upper part of the tooling box 1 is an operation box, and the lower part of the tooling box 1 is a cooling box. The conveyor 2 penetrates through the operation box. There are several evenly distributed placement racks 3 on the conveyor 2. Inside the operation box, there are successively a laser inspection mechanism 11, a fixed lifting mechanism 10, a probe inspection mechanism 4, and a hole inspection mechanism 9. There are several supplementary lights inside the operation box, and there is a cooling fan inside the cooling box. The air outlet of the cooling fan extends into the operation box;

[0043] Place the rotor shafts on the corresponding placement racks 3 in sequence. The conveyor 2 drives a number of placement racks 3 to move intermittently. When the first rotor shaft moves directly below the fixed lifting mechanism 10, the fixed lifting mechanism 10 clamps and aligns the rotor shaft, jacks it up and fixes it, and then checks whether the length of the rotor shaft is qualified (within the error range). The fixed lifting mechanism 10 raises the rotor shaft to a certain height and stably drives the rotor shaft to rotate. The laser inspection mechanism 11 performs laser inspection on the rotor shaft to check whether the diameters of all parts of the rotor shaft are qualified, and at the same time checks the total length of the rotor shaft. The fixed lifting mechanism 10 cooperates with the laser inspection mechanism 11 for comparison. The length of the rotor shaft takes the average value of the two inspections. After laser inspection, the length of the diameter change of the rotor shaft is collected and transmitted to the probe inspection mechanism 4. The probe inspection mechanism 4 abuts against the rotor shaft to perform probe inspection to check whether the diameters of all parts of the rotor shaft are qualified. The laser inspection and the probe inspection cooperate for comparison to check whether the inspection is qualified. After the comparison inspection is completed, it is placed back on the placement rack 3. The conveyor 2 drives the placement rack 3 to continue to move intermittently and moves to the hole inspection mechanism 9. The hole inspection mechanism 9 inspects the diameter and depth of the hole (mainly the keyhole). After the inspection, the conveyor 2 drives the placement rack 3 to continue to move intermittently and discharges it. Each time it moves the distance between two placement racks 3, and the intermittent time is the time of the longest inspection step among them. During the inspection, the supplementary light lamp can be turned on to facilitate the staff to observe and perform preliminary installation and debugging. The cooling fan can supply cold air to the inside of the operation box to cool down each component.

[0044] There is a glass supplementary light window on the upper part of the operation box. Observation windows 7 are provided on both the front and rear sides of the operation box. A control screen area 6 is provided on the front side of the operation box. Lifting foot cups 8 are provided at the lower end of the cooling box; the glass supplementary light window can admit natural light, the observation window 7 is convenient for the staff to observe, the control screen area 6 can perform data debugging and at the same time collect and process data, and the lifting foot cups 8 are used to adjust the level of the work machine box 1.

[0045] The conveyor 2 includes a conveyor frame 13. A number of conveyor adjusting legs 12 are provided on the lower side of the conveyor frame 13. A conveyor belt 14 is provided on the conveyor frame 13. A discharge cylinder 19 is provided at the end of the conveyor frame 13. A discharge plate 20 is provided on the lower side of the discharge cylinder 19. The placement rack 3 includes a fixed bracket 15 and a sliding bracket 16. The fixed bracket 15 is fixed on the conveyor belt 14. The sliding bracket 16 is slidably arranged inside the fixed bracket 15 in an adjustable manner. The upper ends of the fixed bracket 15 and the sliding bracket 16 are respectively provided with a first lifting frame 18 and a second lifting frame 17 that are slidable in an adjustable manner; the conveyor adjusting legs 12 can adjust the conveyor frame 13 to keep it horizontal. The conveyor belt 14 drives the placement rack 3 to move intermittently, drives the rotor shaft to move, moves the rotor shaft to the discharge cylinder 19, and discharges it from the discharge plate 20. According to the length of the rotor shaft, adjust the length of the sliding bracket 16 inserted inside the fixed bracket 15, so as to adjust the distance between the first lifting frame 18 and the second lifting frame 17, so that both ends of the rotor shaft are located outside the first lifting frame 18 and the second lifting frame 17. According to the diameter of the rotor shaft (the diameter varies at different positions), adjust the depth of the first lifting frame 18 inserted inside the fixed bracket 15, and adjust the depth of the second lifting frame 17 inserted inside the sliding bracket 16 to keep the rotor shaft horizontally placed.

[0046] The laser inspection mechanism 11 includes a fixing plate 21. The fixing plate 21 is fixed inside the operation box. A transverse lead screw member 22 is fixed on the side of the fixing plate 21. A transverse sliding seat 23 is provided on the transverse lead screw member 22 in a driving connection manner. A longitudinal lead screw member 24 is provided on the transverse sliding seat 23. A longitudinal sliding seat 25 is provided on the longitudinal lead screw member 24 in a driving connection manner. A supplementary light 26 and a number of laser detectors 27 are provided at the lower end of the longitudinal sliding seat 25; according to the position of the rotor shaft, the longitudinal lead screw member 24 drives the longitudinal sliding seat 25 to lift, so that a number of laser detectors 27 are directly opposite to the rotor shaft. Turn on the supplementary light 26, and the light shines on the rotor shaft. The transverse lead screw member 22 drives the transverse sliding seat 23 to move horizontally, thereby driving the longitudinal lead screw member 24 horizontally, that is, driving a number of laser detectors 27 to move horizontally. The laser detectors 27 inspect the diameters of each section of the rotor shaft, the lengths of each section (sections with different diameters), and the total length.

[0047] The fixed lifting mechanism 10 includes two symmetrically arranged lifting and adjusting push rods 35 and a carriage 33. The upper ends of the two lifting and adjusting push rods 35 are fixed to the inner top of the operation box. At both ends of the upper side of the carriage 33, positioning motors 28 are fixed. The two positioning motors 28 are both fixed to the lower ends of the corresponding lifting and adjusting push rods 35. Inside the carriage 33, two symmetrically arranged driving screws 30 are rotatably provided. A pulley pair 29 is provided between the output shaft of the positioning motor 28 and the end of the driving screw 30 at the corresponding position. On both driving screws 30, clamping seats 31 are driven. On the clamping seats 31, a number of guide wheels 32 are rotatably provided. The guide wheels 32 abut against both sides of the carriage 33. Fixed clamping assemblies 34 are provided on the clamping seats 31. The two fixed clamping assemblies 34 are symmetrically arranged. The output shaft of the positioning motor 28 drives the driving screw 30 at the corresponding position to rotate through the pulley pair 29. Thus, the driving screw 30 cooperates with the clamping seat 31, and through the cooperation of the guide wheels 32 and the carriage 33, the two fixed clamping assemblies 34 are driven to move relatively. The distance between the two fixed clamping assemblies 34 is slightly larger than the length of the rotor shaft. The fixed clamping assemblies 34 clamp the rotor shaft. The rotor shaft is located in the middle of the fixed clamping assemblies 34 and is then tightened. The two fixed lifting mechanisms 10 cooperate. When tightening, the length of the rotor shaft is detected. The two lifting and adjusting push rods 35 drive to rise and move to the positions of laser inspection and probe inspection. The fixed clamping assemblies 34 drive the rotor shaft to rotate. The laser inspection mechanism 11 cooperates with the probe inspection mechanism 4 to perform laser inspection and probe inspection respectively.

[0048] The fixed clamping assembly 34 includes a mounting seat 39. The mounting seat 39 is detachably arranged inside the corresponding clamping seat 31. An electric chuck 36 is provided on the mounting seat 39. A number of circumferentially evenly distributed step clamping seats 38 are provided on the electric chuck 36. A fixed push rod 37 is provided inside the mounting seat 39. The telescopic end of the fixed push rod 37 penetrates through the middle of the electric chuck 36. The electric chuck 36 drives the step clamping seats 38 to clamp the rotor shaft, so that the rotor shaft is collinear with the axis of the electric chuck 36. Then, the telescopic end of the fixed push rod 37 is pushed out. The fixed push rods 37 of the two fixed clamping assemblies 34 cooperate. The telescopic ends of the two fixed push rods 37 abut against both ends of the rotor shaft for fixation. At this time, according to the pushing length of the two fixed push rods 37, the distance between the telescopic ends of the two fixed push rods 37 is detected, which is the length of the rotor shaft. The laser inspection mechanism 11 cooperates to detect the length of the rotor shaft. The fixed lifting mechanism 10 cooperates with the laser inspection mechanism 11 for comparison. The length of the rotor shaft takes the average value of the two inspections.

[0049] The probe inspection mechanism 4 includes two mounting plates 41 which are fixed to the inner top of the operation box. A lead screw 42 is rotatably arranged between the two mounting plates 41. Two slide rods 43 are fixed between the two mounting plates 41. The lead screw 42 is located between the two slide rods 43. A displacement slide seat 44 is driven on the lead screw 42. The displacement slide seat 44 is slidably arranged on the two slide rods 43. An adjustment motor 40 is arranged on one of the mounting plates 41. The output shaft of the adjustment motor 40 is drivingly connected to one end of the lead screw 42. A rack bar 45 is arranged at the lower end of the displacement slide seat 44. A lifting adjustment seat 47 is slidably arranged on the rack bar 45. A lifting motor 46 is fixed on the lifting adjustment seat 47. The output shaft of the lifting motor 46 extends into the interior of the lifting adjustment seat 47. A gear is fixed on the output shaft of the lifting motor 46. The gear meshes with the rack bar 45. An installation head 49 is arranged on the lifting adjustment seat 47. A position adjustment push rod 48 is fixed on the installation head 49. A surface probe 50 is fixed on the telescopic end of the position adjustment push rod 48;

[0050] Adjust the position of the installation head 49 on the position adjustment push rod 48 so that the surface probe 50 can contact the surface of the rotor shaft. According to the axis height of the rotor shaft of the rotor shaft, the output shaft of the lifting motor 46 drives the gear to rotate. The gear meshes with the rack bar 45, which can drive the lifting adjustment seat 47 to slide up and down on the rack bar 45, so that the surface probe 50 is directly opposite to the axis of the rotor shaft. The output shaft of the adjustment motor 40 drives the lead screw 42 to rotate. The lead screw 42 cooperates with the displacement slide seat 44 and moves horizontally along the two slide rods 43. The telescopic end of the position adjustment push rod 48 changes in length, driving the surface probe 50 to extend or retract. According to the diameter of each section of the rotor shaft and the length of each section (different diameter sections) inspected by the laser inspection mechanism 11, the contact inspection of the surface probe 50 is carried out to further detect the diameter of each section. By comparing the two detections, a more accurate diameter inspection can be obtained.

[0051] The hole inspection mechanism 9 includes a first mounting base 52, a second mounting base 62, and a lifting fixing plate 58. At the lower end of the first mounting base 52, there are two first lifting push rods 51, and the two first lifting push rods 51 are fixed on the conveyor frame 13. At the upper end of the first mounting base 52, there are a first mounting base 52, a first rotating wheel set 54, and a frame 56. On the frame 56, there is a lifting electric push rod 55. A lifting plate 53 is fixed on the telescopic end of the lifting electric push rod 55. At the lower end of the lifting plate 53, there is a hole probe 65. At the lower end of the lifting plate 53, there is a sliding rod, and the sliding rod is slidably arranged inside the first mounting base 52. On the frame 56, there is a laser measuring instrument 64. On the upper side of the second mounting base 62, there is a second rotating wheel set 61. At the lower side of the second mounting base 62, there are two second lifting push rods 63, and the two second lifting push rods 63 are fixed on the conveyor frame 13. The positions of the first rotating wheel set 54 and the second rotating wheel set 61 are opposite, and they are respectively located on both sides of the conveyor belt 14. At the lower end of the lifting fixing plate 58, there are two third lifting push rods 57, and the two third lifting push rods 57 are fixed on the conveyor frame 13. At the upper end of the lifting fixing plate 58, a rotating motor 59 is fixed. A rotating dial 60 is fixed on the output shaft of the rotating motor 59;

[0052] According to the dimensions at both ends of the rotor shaft, the two first lifting push rods 51 and the two second lifting push rods 63 rise simultaneously, driving the first mounting base 52 and the second mounting base 62 to rise, so that the first rotating wheel set 54 and the second rotating wheel set 61 abut against both ends of the rotor shaft, driving the rotor shaft to rise, and making the rotor shaft leave the placement rack 3. The two third lifting push rods 57 drive the lifting fixing plate 58 to descend, thereby driving the rotating motor 59 to descend, and then driving the rotating dial 60 to descend, so that the rotating dial 60 abuts against the rotor shaft. The output shaft of the rotating motor 59 drives the rotating dial 60 to rotate, so that the rotating dial 60 drives the rotor shaft to rotate on the first rotating wheel set 54 and the second rotating wheel set 61. When the laser measuring instrument 64 detects that the end of the rotor shaft is vertically upward, the output shaft of the rotating motor 59 stops rotating. The telescopic end of the lifting electric push rod 55 drives the lifting plate 53 to descend, and then drives the hole probe 65 to descend. The hole probe 65 is inserted into the keyhole to detect the diameter and depth of the hole. After the detection is completed, the two first lifting push rods 51, the two second lifting push rods 63, and the two third lifting push rods 57 reset, and the rotor shaft falls back above the placement rack 3 and is conveyed out.

[0053] The working principle of the present invention:

[0054] Adjust the length of the sliding bracket 16 inserted inside the fixed bracket 15 according to the length of the rotor shaft, so as to adjust the distance between the first lifting frame 18 and the second lifting frame 17, making both ends of the rotor shaft located outside the first lifting frame 18 and the second lifting frame 17. According to the diameter of the rotor shaft (the diameter varies at different positions), adjust the depth of the first lifting frame 18 inserted inside the fixed bracket 15 and the depth of the second lifting frame 17 inserted inside the sliding bracket 16 to keep the rotor shaft horizontally placed;

[0055] Place the rotor shaft on the first lifting frame 18 and the second lifting frame 17 of the corresponding placement rack 3 in sequence. The conveyor belt 14 drives the placement rack 3 to move intermittently, driving the rotor shaft to move. When the first rotor shaft moves directly below the fixed lifting mechanism 10, the output shaft of the position adjustment motor 28 drives the corresponding transmission screw 30 to rotate through the pulley pair 29. Thus, the transmission screw 30 cooperates with the clamping seat 31, and through the cooperation of the guide wheel 32 and the sliding carriage 33, drives the two fixed clamping components 34 to move relatively. The distance between the two fixed clamping components 34 is slightly larger than the length of the rotor shaft. The electric chuck 36 drives the stepped clamping seat 38 to clamp the rotor shaft, making the axis of the rotor shaft collinear with that of the electric chuck 36. Then, the telescopic end of the fixed push rod 37 is pushed out, and the fixed push rods 37 of the two fixed clamping components 34 cooperate. The telescopic ends of the two fixed push rods 37 hold both ends of the rotor shaft to fix it. At this time, according to the pushing length of the two fixed push rods 37, the distance between the telescopic ends of the two fixed push rods 37 is detected, which is the length of the rotor shaft, to check whether the length of the rotor shaft is qualified (within the error range). The two lifting and adjusting push rods 35 drive it to rise and move to the position of laser inspection and probe inspection, and the fixed clamping component 34 drives the rotor shaft to rotate;

[0056] According to the position of the rotor shaft, the longitudinal screw member 24 drives the longitudinal sliding seat 25 to rise and fall, making several laser detectors 27 face the rotor shaft directly. Turn on the fill light 26, and the light shines on the rotor shaft. The transverse screw member 22 drives the transverse sliding seat 23 to move horizontally, thus driving the longitudinal screw member 24 horizontally, that is, driving several laser detectors 27 to move horizontally. The laser detectors inspect the diameter of each section of the rotor shaft, the length of each section (sections with different diameters), and the total length. The fixed lifting mechanism 10 cooperates with the laser inspection mechanism 11 for comparison. The length of the rotor shaft takes the average value of the two inspections;

[0057] After laser inspection, the lengths of the diameter changes of the rotor shaft (i.e., the lengths of each section) are collected and transmitted to the probe inspection mechanism 4. The position of the mounting head 49 on the position adjustment push rod 48 is adjusted so that the surface probe 50 can contact the surface of the rotor shaft. According to the axis height of the rotor shaft, the output shaft of the lifting motor 46 drives the gear to rotate. The gear meshes with the rack bar 45, which can drive the lifting adjustment seat 47 to slide up and down on the rack bar 45, making the surface probe 50 directly face the axis of the rotor shaft. The output shaft of the adjustment motor 40 drives the lead screw 42 to rotate. The lead screw 42 cooperates with the displacement slide 44 and moves horizontally along the two slide bars 43. The telescopic end of the position adjustment push rod 48 expands and contracts, driving the surface probe 50 to extend or retract. According to the diameters of each section of the rotor shaft inspected by the laser inspection mechanism 11 and the lengths of each section (sections with different diameters), the contact inspection of the surface probe 50 is carried out to further detect the diameters of each section. The laser inspection and the probe inspection are combined for comparison to check whether the diameters of each section of the rotor shaft are qualified;

[0058] After the comparison and detection are completed, the fixed lifting mechanism 10 resets, and the rotor shaft is placed back on the placement rack 3. The conveyor belt 14 drives the placement rack 3 to continue intermittent movement and moves to the hole inspection mechanism 9. According to the dimensions at both ends of the rotor shaft, the two first lifting push rods 51 and the two second lifting push rods 63 rise simultaneously, driving the first mounting base 52 and the second mounting base 62 to rise, so that the first rotating wheel set 54 and the second rotating wheel set 61 contact both ends of the rotor shaft, driving the rotor shaft to rise and leaving the placement rack 3. The two third lifting push rods 57 drive the lifting fixed plate 58 to descend, thereby driving the rotating motor 59 to descend, and then driving the rotating dial 60 to descend, so that the rotating dial 60 contacts the rotor shaft. The output shaft of the rotating motor 59 drives the rotating dial 60 to rotate, and thus the rotating dial 60 drives the rotor shaft to rotate on the first rotating wheel set 54 and the second rotating wheel set 61. When the laser measuring instrument 64 detects that the end of the rotor shaft is vertically upward, the output shaft of the rotating motor 59 stops rotating. The telescopic end of the lifting electric push rod 55 drives the lifting plate 53 to descend, and then drives the hole probe 65 to descend. The hole probe 65 is inserted into the keyhole to detect the diameter and depth of the hole;

[0059] After the detection is completed, the two first lifting push rods 51, the two second lifting push rods 63, and the two third lifting push rods 57 reset. The rotor shaft falls back above the placement rack 3. The conveyor 2 drives the placement rack 3 to continue intermittent movement, moves the rotor shaft to the discharge cylinder 19, and discharges it from the discharge plate 20. Each time, the distance between two placement racks 3 is moved, and the intermittent time is the time of the longest inspection step among them. During the inspection, the supplementary light can be turned on to facilitate the staff's observation and pre-installation debugging. The cooling fan can supply cold air to the inside of the operation box to cool down each component.

[0060] In summary, through the cooperation of the conveyor 2 and several placement racks 3, it is possible to place rotor shafts with different diameters and lengths and perform intermittent conveying.

[0061] Through the cooperation of the fixed lifting mechanism 10 and the laser inspection mechanism 11, the length of the rotor shaft can be inspected twice. At the same time, the laser inspection mechanism 11 performs laser inspection on the rotor shaft to check whether the diameters of various parts of the rotor shaft are qualified and the length of the diameter change of the rotor shaft.

[0062] Through the cooperation of the fixed lifting mechanism 10 and the probe inspection mechanism 4, the rotor shaft can be inspected by the probe to check whether the diameters of each section of the rotor shaft are qualified. At the same time, in cooperation with the laser inspection mechanism 11, a comparative inspection is carried out to check whether the diameters of each section of the rotor shaft are qualified.

[0063] The hole inspection mechanism 9 inspects the diameter and depth of the holes on the rotor shaft, and the inspection is accurate and fast.

[0064] The supplementary light is increased through the cooperation of the supplementary light lamp and the glass light supplement window, which is convenient for the staff to observe and perform preliminary installation and debugging. The cooling fan can supply cold air into the operation box to cool down each component.

[0065] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A rotor shaft inspection tooling for motor production with an automatic fixing function, comprising a tooling chassis (1) and a conveyor (2), characterized in that, The upper part of the tooling box (1) is an operation box, and the lower part of the tooling box (1) is a cooling box. The conveyor (2) penetrates through the operation box, and a number of evenly distributed placement racks (3) are arranged on the conveyor (2). Inside the operation box, there are successively arranged a laser inspection mechanism (11), a fixed lifting mechanism (10), a probe inspection mechanism (4), and a hole inspection mechanism (9). Inside the operation box, there are a number of additional lights. Inside the cooling box, there is a cooling fan, and the air outlet of the cooling fan extends into the operation box. The laser inspection mechanism (11) includes a fixing plate (21) fixed to the inner side of the operation box. A transverse screw member (22) is fixed to the side of the fixing plate (21). A transverse sliding seat (23) is arranged on the transverse screw member (22) in a driving connection manner. A longitudinal screw member (24) is arranged on the transverse sliding seat (23). A longitudinal sliding seat (25) is arranged on the longitudinal screw member (24) in a driving connection manner. A supplementary light (26) and a number of laser detectors (27) are arranged at the lower end of the longitudinal sliding seat (25). The fixed lifting mechanism (10) includes two symmetrically arranged lifting adjustment push rods (35) and a sliding frame (33). The upper ends of the two lifting adjustment push rods (35) are fixed to the inner top of the operation box. At both ends of the upper side of the sliding frame (33), positioning motors (28) are fixed. The two positioning motors (28) are both fixed to the lower ends of the corresponding lifting adjustment push rods (35). Inside the sliding frame (33), two symmetrically arranged driving screws (30) are rotatably arranged. A pulley pair (29) is arranged between the output shaft of the positioning motor (28) and the end of the corresponding driving screw (30). Clamping seats (31) are arranged on both of the driving screws (30) in a driving manner. A number of guide wheels (32) are rotatably arranged on the clamping seats (31). The guide wheels (32) are in contact with both sides of the sliding frame (33). Fixed clamping assemblies (34) are arranged on both of the clamping seats (31). The two fixed clamping assemblies (34) are symmetrically arranged. The fixed clamping assembly (34) includes a mounting seat (39) detachably arranged inside the corresponding clamping seat (31). An electric chuck (36) is arranged on the mounting seat (39). A number of circumferentially evenly distributed stepped clamping seats (38) are arranged on the electric chuck (36). A fixed push rod (37) is arranged inside the mounting seat (39). The telescopic end of the fixed push rod (37) penetrates through the middle of the electric chuck (36). The probe inspection mechanism (4) includes two mounting plates (41) fixed to the inner top of the operation box. A screw rod (42) is rotatably arranged between the two mounting plates (41). Two sliding rods (43) are fixed between the two mounting plates (41). The screw rod (42) is located between the two sliding rods (43). A displacement sliding seat (44) is arranged on the screw rod (42) in a driving manner. The displacement sliding seat (44) is slidably arranged on the two sliding rods (43). An adjustment motor (40) is arranged on one of the mounting plates (41). The output shaft of the adjustment motor (40) is in driving connection with one end of the screw rod (42). A rack bar (45) is arranged at the lower end of the displacement sliding seat (44). A lifting adjustment seat (47) is slidably arranged on the rack bar (45).A lifting adjustment seat (47) is fixed with a lifting motor (46). The output shaft of the lifting motor (46) extends into the interior of the lifting adjustment seat (47). A gear is fixed on the output shaft of the lifting motor (46), and the gear meshes with a rack bar (45). An installation head (49) is provided on the lifting adjustment seat (47), and a position adjustment push rod (48) is fixed on the installation head (49). A surface probe (50) is fixed on the telescopic end of the position adjustment push rod (48).

2. The rotor shaft inspection tooling for motor production with an automatic fixing function according to claim 1, characterized in that, A glass supplementary light window is provided at the upper part of the operation box. Observation windows (7) are provided on both the front and rear sides of the operation box. A control screen area (6) is provided on the front side of the operation box. Lifting foot cups (8) are provided at the lower end of the cooling box.

3. The rotor shaft inspection tooling for motor production with an automatic fixing function according to claim 1 or 2, characterized in that, The conveyor (2) includes a conveyor frame (13). A number of conveyor adjusting legs (12) are provided on the lower side of the conveyor frame (13). A conveyor belt (14) is provided on the conveyor frame (13). A discharge cylinder (19) is provided at the end of the conveyor frame (13). A discharge plate (20) is provided on the lower side of the discharge cylinder (19). The placement rack (3) includes a fixed bracket (15) and a sliding bracket (16). The fixed bracket (15) is fixed on the conveyor belt (14). The sliding bracket (16) is slidably arranged inside the fixed bracket (15) in an adjustable manner. The upper ends of the fixed bracket (15) and the sliding bracket (16) are respectively slidably provided with a first lifting frame (18) and a second lifting frame (17) in an adjustable manner.

4. The rotor shaft inspection tooling for motor production with an automatic fixing function according to claim 3, wherein the hole inspection mechanism (9) includes a first mounting base (52), a second mounting base (62), and a lifting fixing plate (58). Two first lifting push rods (51) are provided at the lower end of the first mounting base (52). The two first lifting push rods (51) are fixed on the conveyor frame (13). A first mounting base (52), a first rotating wheel set (54), and a frame (56) are provided at the upper end of the first mounting base (52). A lifting electric push rod (55) is provided on the frame (56). A lifting plate (53) is fixed on the telescopic end of the lifting electric push rod (55). A hole probe (65) is provided at the lower end of the lifting plate (53). A sliding rod is provided at the lower end of the lifting plate (53). The sliding rod is slidably arranged inside the first mounting base (52). A laser measuring instrument (64) is provided on the frame (56). A second rotating wheel set (61) is provided on the upper side of the second mounting base (62). Two second lifting push rods (63) are provided on the lower side of the second mounting base (62). The two second lifting push rods (63) are fixed on the conveyor frame (13). The positions of the first rotating wheel set (54) and the second rotating wheel set (61) are opposite and are respectively located on both sides of the conveyor belt (14). Two third lifting push rods (57) are provided at the lower end of the lifting fixing plate (58). The two third lifting push rods (57) are fixed on the conveyor frame (13). A rotating motor (59) is fixed at the upper end of the lifting fixing plate (58). A rotating dial (60) is fixed on the output shaft of the rotating motor (59).

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