Online automatic detection machine for transmission shaft fixed end section

Abstract

The present invention relates to an online automatic detection machine for a fixed end section of a transmission shaft. The technical scheme mainly includes a frame, a work table, a cross slide mechanism, a steel ball detection mechanism, a workpiece flattening mechanism, a gap detection mechanism and a torsion torque detection mechanism, a spline alignment mechanism, a discharge mechanism, and a sorting mechanism are fixedly installed in the frame. Each part of the online automatic detection machine of the present invention is equipped with a detection component and an actuator. A controller is installed in an electrical cabinet placed outside the frame. The signal input end of the controller is electrically connected to the signal output end of each detection component through a signal line, and the signal output end of the controller is electrically connected to the signal input end of each actuator through a signal line. The present invention can perform online automatic detection of the quality and function of the fixed end section during assembly, and its detection is accurate and efficient.

Description

Technical Field

[0001] The invention relates to an on-line automatic detection machine for fixing end sections of a car transmission shaft during assembly. Background Art

[0002] The transmission shaft of the car constant velocity universal joint is composed of a fixed end section (workpiece), an intermediate shaft and a mobile end section. Among them, the fixed end section is an important safety component of the transmission shaft and is directly connected to the wheel hub of the car wheel. The power of the engine is transmitted to the wheel through the differential, the mobile end section, the intermediate shaft, the fixed end section and the wheel hub, thereby driving the wheel to rotate. The fixed end section is composed of an outer sleeve, an inner sleeve, a retainer, a steel ball, and an accessory rubber cover, grease, and a clamp. The functional characteristics of the fixed end section, such as rolling torque, swing torque, axial clearance, and the number of steel balls, have a vital impact on the assembly function of the transmission shaft. If the above functional characteristics are unqualified, the function of the assembly will be affected, and there will be problems such as abnormal noise, severe wear, reduced transmission efficiency, and shortened service life of the fixed end section. There will be shaking when the vehicle turns. What is more serious is that the retainer will break and the transmission shaft will be ineffective, causing accidents, user dissatisfaction, and the risk of recall. In the past, the functional detection of the fixed end section was carried out in the laboratory by random inspection, and it could not be 100% detected online, and the detection cost was high and the efficiency was low. Since 100% detection is not possible, it often happens that after being assembled into a complete shaft, the function sampling inspection fails again. In this case, the batch of transmission shafts needs to be re-tested for 100% function, and the fixed end section of the unqualified transmission shaft needs to be disassembled and the unqualified parts need to be replaced to meet the requirements of the swing torque, rolling torque and axial clearance of the fixed end section. After the fixed end section is disassembled, the clamps, steel balls, grease rubber covers and other parts of the fixed end section are all scrapped, resulting in serious waste of materials and materials, increased production costs, and low assembly efficiency. If the transmission shaft equipped with unqualified fixed end sections is shipped to the user, abnormal noise will occur after the transmission shaft is used for a period of time, and even the phenomenon of being unable to assemble and stopping the line when being installed on the site of the main engine factory will occur, resulting in user returns or claims, causing huge losses to the unit. Therefore, there is an urgent need for a machine that can automatically detect the function of the fixed end section and has reliable and efficient detection results at the assembly site, so as to replace the laboratory sampling method, which not only improves production efficiency, but also 100% guarantees that the assembly function of the fixed end section is qualified. Summary of the invention

[0003] The purpose of the present invention is to provide an online automatic detection machine for a fixed end section of a transmission shaft, which can perform online automatic detection of the function of the fixed end section with accurate detection and high detection efficiency.

[0004] The technical solution of the present invention is: an online automatic detection machine for a fixed end section of a transmission shaft, comprising a frame, a worktable and a cross slide mechanism fixedly installed in the frame, characterized in that: a touch screen and an audible and visual alarm are installed on the frame; a workpiece flattening fixture seat, a gap detection fixture seat, a torsion sway torque and steel ball detection fixture seat are installed in sequence from left to right in the middle of the worktable; a steel ball detection mechanism is installed in front of the worktable; the cross slide mechanism is located behind the worktable; a workpiece flattening mechanism, a gap detection mechanism and a torsion sway torque detection mechanism are fixedly installed on the frame, the workpiece flattening mechanism is opposite to the workpiece flattening fixture seat below, the gap detection mechanism is opposite to the gap detection fixture seat below, and the torsion sway torque detection mechanism is opposite to the torsion sway torque and steel ball detection fixture seat below The invention relates to a method for detecting a plurality of detection devices of the present invention, wherein the detection device comprises a plurality of detection devices, and a plurality of detection devices for detecting a plurality of detection devices. The detection device comprises a plurality of detection devices for detecting ...

[0005] The steel ball detection mechanism comprises a transverse cylinder A, a limiter C, a limiter B, a longitudinal cylinder A, and a displacement sensor, wherein the transverse cylinder A is fixedly mounted on a worktable, the limiter C and the limiter B are fixedly mounted on the transverse cylinder A, the fixed end of the longitudinal cylinder A is fixedly mounted on the telescopic end of the transverse cylinder A, and the displacement sensor is fixedly mounted on the telescopic end of the longitudinal cylinder A.

[0006] The cross slide mechanism comprises a transverse cylinder B, a longitudinal cylinder B, a connecting plate, a slide plate E, a double guide rail B, a double guide rail C, a slide plate F, a stopper E, a stopper D, a stopper G, a transplanting plate cylinder, a transplanting plate, a clamping cylinder C, a clamping cylinder D, a clamping cylinder E, a transplanting clamping claw, a cross-beam sensor B, a cross-beam sensor C, a cross-beam sensor D, and a double guide rail E; wherein the transverse cylinder B is fixedly mounted on the workbench, the fixed end of the longitudinal cylinder B is fixedly connected to the telescopic end of the transverse cylinder B through the connecting plate, the connecting plate is fixedly connected to the slide plate E, the double guide rail B, the stopper D, and the stopper G are fixedly mounted on the workbench, the slide plate E is slidably connected to the double guide rail B, and the double guide rail C It is fixed on the slide plate E, the telescopic end of the longitudinal cylinder B is fixedly connected to the slide plate F, the slide plate F is slidably connected to the double guide rail C, the slide plate E is fixedly installed with a limiter E, the fixed end of the transplanting plate cylinder is fixedly installed on the slide plate F, the transplanting plate is fixedly installed on the telescopic end of the transplanting plate cylinder, the clamping cylinder C, the clamping cylinder D, and the clamping cylinder E are respectively installed on the transplanting plate, and the movable ends of the clamping cylinders C, D, and E are respectively fixed with transplanting claws, the movable end of the clamping cylinder C is connected to the opposing sensor B, the movable end of the clamping cylinder D is connected to the opposing sensor C, and the movable end of the clamping cylinder E is connected to the opposing sensor D. The double guide rail E is vertically fixed on the slide plate F, and the transplanting plate and the double guide rail E are slidably connected.

[0007] The workpiece flattening mechanism comprises double guide columns, a bracket A, a flattening cylinder, a flattening pressure head and a cylindrical boss, wherein the double guide sleeve A is fixedly connected to the bracket A, the bracket A is fixedly connected to the frame, the fixed end of the flattening cylinder is fixedly connected to the bracket A, the telescopic end of the flattening cylinder is fixedly connected to one end of the double guide column, the telescopic end of the flattening cylinder is fixedly connected to the flattening pressure head, a cylindrical boss is installed below the flattening pressure head, and the double guide columns are slidably connected to the double guide sleeves.

[0008] The gap detection mechanism comprises a servo electric cylinder, a bracket B, a slide plate A, a bracket C, a double slide column, a force sensor, a connecting block A, a guide sleeve, a clamping cylinder A, a symmetrical clamping jaw, a symmetrical clamping jaw upper boss, a symmetrical clamping jaw lower boss, a pressure plate cylinder, a slide plate B, a gap detection pressure plate, and a single guide rail, wherein the fixed end of the servo electric cylinder is fixedly mounted on the bracket B, the bracket B is fixedly connected to the frame, the telescopic end of the servo electric cylinder is fixedly connected to the bracket C on the slide plate A, and the bracket C is fixedly connected to the slide plate A. The double sliding column is fixed on the bracket C, a force sensor is fixed under the bracket C, the lower end of the force sensor is fixed to the connecting block A, the connecting block A is fixed to the guide sleeve, the double sliding column is slidably connected to the guide sleeve, the lower end of the connecting block A is fixed to the fixed end of the clamping cylinder A, the telescopic end of the clamping cylinder A is fixed with a symmetrical clamping claw, the symmetrical clamping claw has a symmetrical upper boss and a symmetrical lower boss, the fixed end of the pressing plate cylinder is fixed to the frame, the telescopic end of the pressing plate cylinder is fixed to the slide plate B, and a gap detection pressing plate is installed under the slide plate B. The single guide rail is fixed to the frame, and the slide plates A and B are slidably connected to the single guide rail.

[0009] The torsion swing torque detection mechanism comprises a double guide rail A, a slide plate C, a slide plate D, a torque cylinder, a buffer cylinder A, a servo motor A, a gear A, a gear B, a connecting shaft A, a toothed belt pulley A, a toothed belt pulley B, a U-shaped frame, a swing rod, a torque sensor A, a rotating shaft B, and a bracket D, wherein the double guide rail A is fixedly connected to the frame, the slide plate C and the slide plate D are respectively slidably connected to the double guide rail A, the fixed end of the torque cylinder is fixedly connected to the frame, the telescopic end is fixedly connected to the slide plate C, the slide plate C is fixedly connected to the fixed end of the buffer cylinder A, and the buffer The telescopic end of the punching cylinder A is fixedly connected to the slide plate D, the servo motor A is fixedly mounted on the slide plate D, the rotating end of the servo motor A is connected to the toothed pulley B through the gear A, the gear B, the connecting shaft A, the toothed pulley A, and the toothed belt A, the output shaft of the toothed pulley B is fixedly connected to the U-shaped frame, the U-shaped frame is provided with a swing rod, the swing rod is provided with a swing rod boss (62), the torque sensor A (56) is mounted on the connecting shaft A (57), the rotating shaft B is fixedly connected to the U-shaped frame and the toothed pulley B, and is rotationally connected to the bracket D fixedly mounted on the slide plate D.

[0010] The unloading mechanism comprises a pushing cylinder, a V-block A, a clamping cylinder B, a rotating shaft A, a flipping and unloading clamping claw, a bracket E, a flipping cylinder, a rack and pinion pair, a discharging cylinder, a V-block B, a through-shooting sensor E, a distance sensor A, and a through-shooting sensor F; wherein, the fixed end of the pushing cylinder is fixedly connected to the frame, and the telescopic end is fixedly connected to the V-block A, the fixed end of the clamping cylinder B is fixedly connected to the rotating shaft A, the telescopic end of the clamping cylinder B is fixedly connected to the flipping and unloading clamping claw, the through-shooting sensor F is fixedly mounted on the flipping and unloading clamping claw, the rotating shaft A is rotatably connected to the bracket E fixedly mounted on the frame, the fixed end of the flipping cylinder is fixedly connected to the frame, the telescopic end of the flipping cylinder is fixedly connected to the rotating shaft A through the rack and pinion pair, the fixed end of the discharging cylinder is fixedly connected to the frame, and its telescopic end is fixedly connected to the V-block B, on the right side of the V-block A, the through-shooting sensor E is fixedly mounted on the frame, and the distance sensor A is fixedly mounted on the frame opposite to the V-block B.

[0011] The spline alignment mechanism comprises a bracket F, a clearance slot, a double guide rail D, an upper bracket, a lower bracket, a servo motor B, a connecting shaft B, a toothed belt B, a torque sensor B, a lifting cylinder B, a connecting block B, a buffer cylinder B, a spline alignment device, an inner spline, a limiter F, and a limit screw; the bracket F is fixedly mounted on the frame, a clearance slot is opened on the bracket F, a double guide rail D is fixedly mounted on the right side of the bracket F, the upper bracket and the lower bracket are respectively slidably connected to the double guide rail D, a servo motor B is fixedly mounted on the lower bracket, and the connecting shaft B is connected to the lower bracket. Rotational connection, servo motor B is rotationally connected to connecting shaft B through toothed belt B, connecting shaft B is equipped with torque sensor B, the fixed end of lifting cylinder B is fixed on the frame, the telescopic end of lifting cylinder B is fixed to the lower bracket through connecting block B through the yielding slot on bracket F, the fixed end of buffer cylinder B is fixed to the lower bracket, the telescopic end of buffer cylinder B is fixed to the upper bracket, the upper bracket is connected to the spline alignment device, the spline alignment device is provided with an internal spline, the connecting shaft B is connected to the spline alignment device in a longitudinal sliding manner, and the circumferential direction is relatively non-rotatable. The bracket F is fixed with a limiter F, and the lower bracket is fixed with a limit screw.

[0012] The sorting mechanism comprises a bracket G, a double guide rail F, a lifting cylinder A, a lifting plate, an NG cylinder, a V-block C, and a distance sensor B; wherein the bracket G is fixedly mounted under the work table, the double guide rail F is fixedly mounted on the bracket G, the fixed end of the lifting cylinder A is fixedly mounted on the frame, the telescopic end is fixedly connected to the lifting plate, the fixed end of the NG cylinder is fixedly mounted on the frame, the telescopic end of the NG cylinder is fixedly connected to the V-block C, a distance sensor B is installed above the V-block C and is opposite to the lifting plate, and the lifting plate and the V-block C are opposite to the NG material channel entrance installed below the collecting plate.

[0013] The detection components are: distance sensor A, distance sensor B, displacement sensor, force sensor, torque sensor AB, through-beam sensor AF, limiter AG, safety light curtain, touch display screen; the actuators are: clamping cylinder AE, transverse cylinder A, B, longitudinal cylinder A, B, transplanting plate cylinder, flip cylinder, push cylinder, discharging cylinder, NG cylinder, leveling cylinder, pressure plate cylinder, torque cylinder, buffer cylinder A, B, lifting cylinder A, lifting cylinder B, servo electric cylinder, servo motor A, servo motor B, sound and light alarm, safety light curtain.

[0014] The detection principle of the present invention is: when the outer sleeve of the fixed end section (the workpiece to be tested) is clamped and immovable, the inner sleeve is moved in both the positive and negative axial directions under the action of a set force to measure the relative displacement (axial clearance); when the outer sleeve is axially fixed and rotated circumferentially, a swing rod with the same diameter as the intermediate shaft is inserted into the inner hole of the inner sleeve, and the swing rod swings within the set angle, and the maximum torque (swing torque) within the swing range is measured, and the maximum torque (rolling torque) when the swing rod swings to the set angle is measured. If it exceeds the set torque range, an alarm is issued, indicating that the fixed end section function test is unqualified. The value of the force or torque is transmitted to the controller through a force sensor or a torque sensor, and the controller compares it with the set force or torque, and finally determines whether the function of the fixed end section to be tested is qualified.

[0015] The advantages of the present invention are: according to the above-mentioned detection principle and working principle, the advantages of the present invention are that the function of the fixed end section can be automatically detected online, and the detection is accurate and efficient. In the past, the function inspection of the fixed end section could only be carried out by random inspection in the laboratory, and 100% detection could not be carried out online, and the detection cost was high and the efficiency was low. Since 100% detection is not possible, it often happens that the function of the entire shaft after assembly is unqualified during the re-inspection. In this case, it is necessary to re-perform 100% functional testing on the batch of transmission shafts, disassemble the fixed end sections of the unqualified transmission shafts, and replace the unqualified parts to meet the requirements of the swing torque, rolling torque, and axial clearance of the fixed end section. After disassembling the fixed end section, the clamps, steel balls, grease covers and other parts of the fixed end section are all scrapped, resulting in serious waste of materials and materials, increased production costs, and low assembly efficiency. If a transmission shaft with unqualified fixed end sections is shipped to the user, abnormal noise will occur after the transmission shaft is used for a period of time, and even the assembly line will be stopped when it is installed on the main engine factory site, resulting in user returns or claims, causing huge losses to the company. The present invention solves this problem and realizes online detection instead of laboratory sampling. It not only improves production efficiency, but also 100% guarantees that the fixed end sections are qualified, improves product quality, and improves detection efficiency by at least 20 times (laboratory sampling takes 10 minutes, and online detection takes 27 seconds), increases customer satisfaction, and enhances the core competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an online automatic detection machine for a fixed end section of a transmission shaft of the present application.

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of the workpiece leveling mechanism.

[0018] Figure 3 yes Figure 1 Enlarged schematic diagram of the mid-gap detection mechanism.

[0019] Figure 4 yes Figure 1 Enlarged schematic diagram of the torsion pendulum torque detection mechanism.

[0020] Figure 5 yes Figure 1 Enlarged schematic diagram of the center spline alignment mechanism.

[0021] Figure 6 yes Figure 1 Middle AA section view.

[0022] Figure 7 yes Figure 6 Enlarged schematic diagram of the middle cross slide mechanism.

[0023] Figure 8 yes Figure 6 Enlarged schematic diagram of the middle unloading mechanism.

[0024] Fig. 9 yes Figure 6 Enlarged schematic diagram of the steel ball detection mechanism.

[0025] Fig.10 yes Figure 1 Right view of .

[0026] Fig.11 yes Figure 1 Left view of .

[0027] Fig.12 yes Figure 6 Middle QQ section view.

[0028] Fig.13 yes Fig.10 Enlarged schematic diagram of the middle sorting mechanism.

[0029] Fig.14 It is a schematic block diagram of the connection relationship of the control part of the present invention.

[0030] Fig.15 It is a schematic diagram of the structure of the workpiece to be measured according to the present invention.

[0031] Fig.16 It is the first stereoscopic schematic diagram of the online automatic detection machine for the fixed end section of the transmission shaft of the present application.

[0032] Fig.17 It is the second stereoscopic schematic diagram of the online automatic detection machine for the fixed end section of the transmission shaft of the present application.

[0033] In the figure: 1 fixed end section assembly station, 2 fixed end section, 3 transplanting plate, 4 touch screen, 5 sound and light alarm, 6 frame, 7 workpiece flattening mechanism, 8 gap detection mechanism, 9 torsion torque detection mechanism, 10 electrical cabinet, 11 flip unloading clamp, 12 clamping cylinder B, 13 rotating shaft A, 14 collecting plate, 15 NG material channel, 16 transplanting clamp, 17 torsion torque and steel ball detection fixture seat, 18 spline alignment mechanism, 19 steel ball detection mechanism, 20 gap detection fixture seat, 21 workpiece flattening fixture seat, 22 work table, 23 start button 、24 torque initial judgment device、25 flattening cylinder、26 double guide column、27 bracket A、28 double guide sleeve A、29 flattening pressure head、30 cylindrical boss、31 single guide rail、32 symmetrical jaw lower boss、33 symmetrical jaw、34 symmetrical jaw upper boss、35 gap detection plate、36 guide sleeve、37 connecting block A、38 double slide column、39 plate cylinder、40 clamping cylinder A、41 force sensor、42 bracket B、43 servo electric cylinder、44 bracket C、45 slide plate A、46 slide plate B、47 torque cylinder、48 double guide rail A、49 slide plate C、 50 buffer cylinder A, 51 slide plate D, 52 toothed belt A, 53 toothed pulley A, 54 servo motor A, 55 gear A, 56 torque sensor A, 57 connecting shaft A, 58 gear B, 59 U-shaped frame, 60 bracket D, 61 rotating shaft B, 62 rocker boss, 63 rocker, 64 lifting cylinder B, 65 limiter F, 66 connecting block B, 67 limit screw, 68 bracket F, 69 double guide rail D, 70 lower bracket, 71 connecting shaft B, 72 toothed pulley B, 73 torque sensor B, 74 buffer cylinder B, 75 servo motor B, 76 upper bracket, 77 spline alignment device, 78 unloading mechanism, 79 clamping cylinder E, 80 shooting sensor D, 81 shooting sensor C, 82 clamping cylinder D, 83 shooting sensor B, 84 shooting sensor A, 85 clamping cylinder C, 86 cross slide mechanism, 87 limiter G, 88 double guide rail E, 89 limiter E, 90 limiter D, 91 double guide rail C, 92 slide plate F, 93 slide plate E, 94 connecting plate, 95 transplanting plate cylinder, 96 double guide rail B, 97 horizontal cylinder B, 98 flip cylinder, 99 gear rack pair,100 Push cylinder, 101 Discharge cylinder, 102 V-block B, 103 Lifting plate, 104 V-block A, 105 Stopper C, 106 Bracket E, 107 Opposing sensor E, 108 Distance sensor A, 109 Opposing sensor F, 110 Displacement sensor, 111 Stopper B, 112 Longitudinal cylinder A, 113 Transverse cylinder A, 114 NG cylinder, 115 Distance sensor B, 116 V-block C, 117 Sorting mechanism, 118 Safety light curtain, 119 Internal flower construction , 120 bracket G, 121 double guide rail F, 122 lifting cylinder A, 123 giving way slot, 124 longitudinal cylinder B, 125 stopper A, 126 toothed belt B, 127 fixed end section outer sleeve handle external spline, 128 fixed end section outer sleeve, 129 steel ball, 130 retainer, 131 fixed end section inner sleeve equally divided ballway, 132 fixed end section inner sleeve inner hole, 133 fixed end section inner sleeve, 134 fixed end section outer sleeve equally divided ballway, 135 equally divided window, 136 fixed end section outer sleeve positioning surface. , DETAILED DESCRIPTION

[0034] The present invention is an online automatic detection machine for the fixed end section of a transmission shaft. Figure 1 As shown, the frame 6 is equipped with a touch screen 4 and an audible and visual alarm 5; a workbench 22 is fixedly installed in the frame, and in the middle of the workbench, from left to right, a workpiece flattening fixture 21, a gap detection fixture 20, and a torsion sway torque and steel ball detection fixture 17 are installed in sequence; a steel ball detection mechanism 19 is installed in front of the workbench; a cross slide mechanism 86 is installed behind the workbench; a workpiece flattening mechanism 7, a gap detection mechanism 8 and a torsion sway torque detection mechanism 9 are fixedly installed on the frame, the workpiece flattening mechanism is opposite to the workpiece flattening fixture below, the gap detection mechanism is opposite to the gap detection fixture below, and the torsion sway torque detection mechanism is opposite to the torsion sway torque and steel ball detection fixture below; a spline alignment mechanism 18 is installed under the workbench , the spline alignment mechanism corresponds to the position of the torsional moment and steel ball detection fixture seat on the workbench; the left side of the workbench is equipped with a fixed end section assembly station 1, a start button 23, and a torque initial judgment device 24; the right side of the workbench is equipped with a discharge mechanism 78; a collecting tray 14 is installed in front of the discharge mechanism, and an NG material channel 15 and a sorting mechanism 117 are installed below the collecting tray; the present invention is provided with an online automatic control system, which includes an electrical cabinet (10), a controller installed in the electrical cabinet, and various detection components and actuators installed on the detection machine, the signal input end of the controller is electrically connected to the signal output end of each detection component through a signal line, and the signal output end of the controller is electrically connected to the signal input end of each actuator through a signal line.

[0035] The steel ball detection mechanism 19, such as Fig. 9As shown, it has a transverse cylinder A113, a limiter C105, a limiter B111, a longitudinal cylinder A112, and a displacement sensor 110, wherein the transverse cylinder A113 is fixedly mounted on the workbench, the limiter C and the limiter B are fixedly mounted on the transverse cylinder A, the fixed end of the longitudinal cylinder A is fixedly mounted on the telescopic end of the transverse cylinder A, and the displacement sensor is fixedly mounted on the telescopic end of the longitudinal cylinder A.

[0036] The cross slide mechanism 86, as Figure 7 As shown, it has a transverse cylinder B97, a longitudinal cylinder B124, a connecting plate 94, a slide plate E93, a double guide rail B96, a double guide rail C91, a slide plate F92, a stopper E89, a stopper D90, a stopper G87, a transplanting plate cylinder 95, a transplanting plate 3, a clamping cylinder C85, a clamping cylinder D82, a clamping cylinder E79, a transplanting clamp 16, a through-beam sensor B83, a through-beam sensor C81, a through-beam sensor D80, and a double guide rail E88; wherein, the transverse cylinder B97 is fixedly mounted on the workbench, the fixed end of the longitudinal cylinder B124 is fixedly connected to the telescopic end of the transverse cylinder B through the connecting plate 94, the connecting plate is fixedly connected to the slide plate E93, the double guide rail B96, the stopper D90, and the stopper G87 are fixedly mounted on the workbench, and the slide plate E is fixedly connected to the double guide rail. Rail B96 is slidably connected, the double guide rail C91 is fixed on the skateboard E, the telescopic end of the longitudinal cylinder B is fixedly connected to the skateboard F92, the skateboard F is slidably connected to the double guide rail C, the skateboard E is fixedly installed with a limiter E89, the fixed end of the transplanting plate cylinder 95 is fixedly installed on the skateboard F, the transplanting plate is fixedly installed on the telescopic end of the transplanting plate cylinder, the clamping cylinder C85, the clamping cylinder D82, and the clamping cylinder E79 are respectively installed on the transplanting plate, the movable ends of the clamping cylinders C, D, and E are respectively fixed with transplanting claws 16, the movable end of the clamping cylinder C is connected to the opposing sensor B83, the movable end of the clamping cylinder D is connected to the opposing sensor C81, and the movable end of the clamping cylinder E is connected to the opposing sensor D80, the double guide rail E88 is vertically fixed on the skateboard F, and the transplanting plate and the double guide rail E are slidably connected.

[0037] The workpiece flattening mechanism 7 is as follows: Figure 2 As shown, it has double guide pillars 26, a bracket A27, a leveling cylinder 25, a leveling head 29, a cylindrical boss 30, and a double guide sleeve A28, wherein the double guide sleeve A28 is fixedly connected to the bracket A27, the bracket A is fixedly connected to the frame, the fixed end of the leveling cylinder is fixedly connected to the bracket A, the telescopic end of the leveling cylinder is fixedly connected to one end of the double guide pillar, the telescopic end of the leveling cylinder is fixedly connected to the leveling head 29, a cylindrical boss is installed below the leveling head, and the double guide pillars are slidably connected to the double guide sleeves.

[0038] The gap detection mechanism 8, such as Figure 3As shown, it has a servo electric cylinder 43, a bracket B42, a slide plate A45, a bracket C44, a double slide column 38, a force sensor 41, a connecting block A37, a guide sleeve 36, a clamping cylinder A40, a symmetrical clamping jaw 33, a symmetrical clamping jaw upper boss 34, a symmetrical clamping jaw lower boss 32, a pressure plate cylinder 39, a slide plate B46, a gap detection pressure plate 35, and a single guide rail 31, wherein the fixed end of the servo electric cylinder is fixedly mounted on the bracket B42, the bracket B is fixedly connected to the frame, the telescopic end of the servo electric cylinder is fixedly connected to the bracket C44 on the slide plate A45, and the bracket C is fixedly connected to the slide plate A The double slide column 38 is fixed on the bracket C, and a force sensor 41 is fixed below the bracket C. The lower end of the force sensor is fixed to the connecting block A37, and the connecting block A is fixed to the guide sleeve. The slide column is slidably connected to the guide sleeve. The lower end of the connecting block A is fixed to the fixed end of the clamping cylinder A40, and the telescopic end of the clamping cylinder A is fixed with a symmetrical clamping claw 33, which has a symmetrical clamping claw upper boss 34 and a symmetrical clamping claw lower boss 32. The fixed end of the pressure plate cylinder 39 is fixed to the frame, and the telescopic end of the pressure plate cylinder is fixed to the slide plate B46. A gap detection pressure plate is installed below the slide plate B. The single guide rail 31 is fixed to the frame, and the slide plates A and B are slidably connected to the single guide rail.

[0039] The torsion torque detection mechanism 9 is as follows: Figure 4 As shown, it has double guide rails A48, slide plate C49, slide plate D51, torque cylinder 47, buffer cylinder A50, servo motor A54, gear A55, gear B58, connecting shaft A57, toothed belt pulley A53, toothed belt A52, toothed belt pulley B72, U-shaped frame 59, swing rod 63, torque sensor A56, rotating shaft B61, and bracket D60, wherein the double guide rails A48 are fixedly connected to the frame, slide plates C49 and slide plate D51 are respectively slidably connected to the double guide rails A, the fixed end of the torque cylinder 47 is fixedly connected to the frame, and the telescopic end is fixedly connected to the slide plate C, and the slide plate C is connected to the buffer cylinder A5 0 is fixedly connected, the telescopic end of the buffer cylinder A is fixedly connected to the slide plate D, the servo motor A54 is fixedly mounted on the slide plate D, the rotating end of the servo motor A is power-connected to the toothed pulley B72 through the gear A55, the gear B58, the connecting shaft A57, the toothed pulley A53, the toothed belt A52, the output shaft of the toothed pulley B is fixedly connected to the U-shaped frame 59, the U-shaped frame is provided with a rocker arm 63, the rocker arm is provided with a rocker arm boss 62, the torque sensor A56 is mounted on the connecting shaft A57, the rotating shaft B61 is fixedly connected to the U-shaped frame and the toothed pulley B, and is rotationally connected to the bracket D60 fixedly mounted on the slide plate D.

[0040] The unloading mechanism 78, such as Figure 8As shown, it has a push cylinder 100, a V-block A104, a clamping cylinder B12, a rotating shaft A13, a flip unloading clamp 11, a bracket E106, a flip cylinder 98), a rack and pinion pair 99, a discharge cylinder 101, a V-block B102, a beam sensor E107, a distance sensor A108, and a beam sensor F109; wherein the fixed end of the push cylinder is fixedly connected to the frame, the telescopic end is fixedly connected to the V-block A104, the fixed end of the clamping cylinder B12 is fixedly connected to the rotating shaft A, and the The telescopic end is fixedly connected to the flipping and unloading clamping claw, the through-beam sensor F is fixedly mounted on the flipping and unloading clamping claw, the rotating shaft A is rotatably connected to the bracket E106 fixedly mounted on the frame, the fixed end of the flipping cylinder 98 is fixedly connected to the frame, the telescopic end of the flipping cylinder is fixedly connected to the rotating shaft A through a rack and pinion pair, the fixed end of the discharging cylinder 101 is fixedly connected to the frame, and its telescopic end is fixedly connected to the V-block B102. On the right side of the V-block A, the through-beam sensor E107 is fixedly mounted on the frame, and the distance sensor A is fixedly mounted on the frame opposite to the V-block B.

[0041] The spline alignment mechanism 18, such as Figure 5 As shown, it has a bracket F68, a clearance slot 123, a double guide rail D69, an upper bracket 76, a lower bracket 70, a servo motor B75, a connecting shaft B71, a toothed belt B126, a torque sensor B73, a lifting cylinder B64, a connecting block B66, a buffer cylinder B74, a spline alignment device 77, an inner spline 119, a limiter F65, and a limit screw 67; the bracket F68 is fixed on the frame, a clearance slot 123 is opened on the bracket F, a double guide rail D69 is fixed on the right side of the bracket F, the upper bracket 76 and the lower bracket 70 are respectively slidably connected to the double guide rail D, and the servo motor B69 is fixed on the lower bracket. 75, the connecting shaft B71 is rotatably connected to the lower bracket, the servo motor B is rotatably connected to the connecting shaft B through the toothed belt B126, the connecting shaft B is equipped with a torque sensor B73, the fixed end of the lifting cylinder B64 is fixed on the frame, the telescopic end of the lifting cylinder B is fixedly connected to the lower bracket through the connecting block B66 through the yielding groove on the bracket F, the fixed end of the buffer cylinder B74 is fixedly connected to the lower bracket, the telescopic end of the buffer cylinder B is fixedly connected to the upper bracket, the upper bracket is connected to the spline alignment device 77, the spline alignment device is provided with an internal spline 119, the connecting shaft B is longitudinally slidably connected to the spline alignment device, and the circumferential direction is relatively non-rotatable. The bracket F is fixedly equipped with a limiter F65, and the lower bracket is fixedly equipped with a limit screw 67.

[0042] The sorting mechanism 117, such as Fig.10 , 13As shown, it has a bracket G120, a double guide rail F121, a lifting cylinder A122, a lifting plate 103, an NG cylinder 114, a V-block C116, and a distance sensor B115; wherein, the bracket G120 is fixedly mounted under the work table, the double guide rail F121 is fixedly mounted on the bracket G, the fixed end of the lifting cylinder A122 is fixedly mounted on the frame, and the telescopic end is fixedly connected to the lifting plate 103. The fixed end of the NG cylinder 114 is fixedly mounted on the frame, the telescopic end of the NG cylinder is fixedly connected to the V-block C116, a distance sensor B115 is installed above the V-block C and is opposite to the lifting plate, and the lifting plate and the V-block C are opposite to the entrance of the NG material channel 15 installed below the collecting plate 14.

[0043] like Fig.15 As shown, the fixed end section 2 is the workpiece to be measured, which is composed of a fixed end section outer sleeve 128, a fixed end section inner sleeve 133, a retainer 130, and a steel ball 129; the fixed end section outer sleeve is provided with an outer spline 127 of the fixed end section outer sleeve shank, a fixed end section outer sleeve positioning surface 136, and a fixed end section inner sleeve equally divided ball track 131; the fixed end section inner sleeve is provided with an inner hole 132 of the fixed end section inner sleeve, and a fixed end section outer sleeve equally divided ball track 134; the retainer is provided with an equally divided window 135. The equally divided ball tracks of the outer sleeve correspond to the equally divided ball tracks of the inner sleeve and the equally divided windows of the retainer, and the ball displacement corresponds to the ball track and the window. The equally divided ball track is usually divided into six equal parts, and the one used in high-end cars is eight equal parts.

[0044] The present invention is provided with an online automatic control system, wherein the signal input end of the controller is electrically connected to the signal output end of each detection component of the automatic detection machine through a signal line, and the signal output end of the controller is electrically connected to the signal input end of each actuator through a signal line. The detection components are: distance sensor A, distance sensor B, displacement sensor, force sensor, torque sensor AB, through-beam sensor AF, limiter AG, safety light curtain, touch screen; the actuators of the automatic detection machine are: clamping cylinder AE, lateral cylinder A, B, longitudinal cylinder A, B, transplanting plate cylinder, flip cylinder, push cylinder, discharging cylinder, NG cylinder, flattening cylinder, pressure plate cylinder, torque cylinder, buffer cylinder A, B, lifting cylinder A, lifting cylinder B, servo electric cylinder, servo motor A, servo motor B, sound and light alarm, safety light curtain, touch screen.

[0045] The working process of the present invention is: at the fixed end section assembly station, use a crank to install the retainer, inner sleeve and six steel balls into the outer sleeve, place the installed fixed end section on the workpiece flattening fixture, press the start button, and the shooting sensor A (the same shooting sensor A is installed under each fixture) detects the presence of the workpiece. In the workpiece flattening mechanism, the telescopic end of the flattening cylinder drives the flattening pressure head and the cylindrical boss, which are guided by the double guide pillars along the double guide sleeves A and move downward. The cylindrical boss enters the inner hole of the inner sleeve, and the flattening pressure head presses on the end face of the workpiece retainer, so as to make the axis of the inner sleeve and the retainer vertical, which is convenient for subsequent detection. The flattening cylinder retreats to its original position. In the cross slide mechanism, the telescopic end of the longitudinal cylinder B drives the slide plate F and the transfer plate on it to move forward along the double guide rail C until it contacts the limiter E. The clamping cylinder C on the transfer plate drives the transfer clamp to move just to the workpiece flattening fixture seat and correspond to the workpiece. The cross-shooting sensor B on the transfer clamp detects the presence of the workpiece, and the clamping cylinder C drives the transfer clamp to clamp the workpiece. The transfer plate cylinder drives the transfer plate to rise along the double guide rail E, so that the workpiece is out of contact with the workpiece flattening fixture seat. The telescopic end of the transverse cylinder B drives The slide plate E moves to the right along the double guide rail B and stops when it contacts the limiter G. The transfer plate cylinder drives the transfer plate to descend along the double guide rail E, and the flattened workpiece is placed on the gap detection fixture. The through-shooting sensor A under the gap detection fixture detects the presence of the workpiece, and the clamping cylinder C drives the transfer clamp to release the workpiece. The transfer plate cylinder drives the transfer plate to rise along the double guide rail E, and the telescopic end of the longitudinal cylinder B drives the slide plate F and the transfer plate on it to return to their original position, and the telescopic end of the transverse cylinder B drives the slide plate E to the left and return to its original position. In the gap detection mechanism, the telescopic end of the pressure plate cylinder drives the slide plate B and the gap detection pressure plate on it to move downward along the single guide rail and make the gap detection pressure plate press the outer sleeve end face of the workpiece. The telescopic end of the servo electric cylinder drives the slide plate A, as well as the bracket C, force sensor, double sliding column, connecting block A (the double sliding column and the guide sleeve on the connecting block A slide), clamping cylinder A and symmetrical clamping jaws to move downward so that the symmetrical clamping jaws enter the hole of the inner sleeve of the workpiece. When the inner sleeve is within the range of the upper and lower bosses of the symmetrical clamping jaws, the clamping cylinder A expands and the symmetrical clamping jaws continue to move downward until the upper boss of the symmetrical clamping jaws presses the upper end face of the inner sleeve of the workpiece and reaches the set force. The servo electric cylinder records the running position, and the symmetrical clamping jaws move upward until the lower boss of the symmetrical clamping jaws presses the lower end face of the inner sleeve of the workpiece and reaches the set force. The servo electric cylinder records the position again. The distance between the two positions, minus the difference between the distance between the upper and lower bosses and the height of the workpiece, is the axial clearance of the fixed end section. The clamping cylinder A is released and moves downward to the set position, so that the symmetrical clamping jaws can be easily retracted from the inner sleeve hole of the workpiece. The telescopic end of the platen cylinder drives the slide plate B and the gap detection plate on it to rise and return to the original position. The servo electric cylinder drives the symmetrical clamping jaws to rise and return to the original position.

[0046] Place the installed fixed end section on the workpiece flattening fixture, press the start button, and the workpiece flattening mechanism, cross slide mechanism, and gap detection mechanism repeat the above actions. The transplanting clamps of the clamping cylinder C and the clamping cylinder D in the cross slide mechanism clamp the flattened workpiece and the workpiece that has been detected by the gap and transport them to the gap detection fixture and the torsion swing torque and steel ball detection fixture, respectively, and then return to the original position. When the cross-shooting sensor A under the torsion swing torque and steel ball detection fixture detects the presence of a workpiece, in the torsion swing torque detection mechanism, the telescopic end of the torque cylinder drives the slide plate C to move downward along the double rail A, and the buffer cylinder A synchronously drives the slide plate D to move downward along the double guide rail A until the swing rod enters the inner hole of the workpiece inner sleeve and presses the swing rod boss 62 against the upper end surface of the workpiece inner sleeve. In the spline alignment mechanism, the rotating end of the servo motor B drives the connecting shaft B and the spline alignment device to rotate at the set speed through the toothed belt B. The telescopic end of the lifting cylinder B drives the lower bracket to move upward along the double guide rail D through the connecting block B (the connecting block B moves upward through the yielding groove on the bracket F) until the limit screw contacts the limiter F, and the buffer cylinder B synchronously drives the upper bracket and the spline alignment device to move upward along the double guide rail D, so that the inner spline of the spline alignment device contacts the outer spline of the fixed end section outer sleeve handle. The torque sensor B determines whether the spline alignment device is aligned with the outer spline of the fixed end section outer sleeve handle by the change of torque. After alignment, the outer spline of the fixed end section outer sleeve handle enters the spline alignment device, and sliding is formed between the two. The buffer cylinder B continues to move upward and presses against the positioning surface of the fixed end section outer sleeve. At this time, the buffer cylinder A drives the swing The rod moves upward, so that the workpiece is out of contact with the torsional pendulum torque and the steel ball detection fixture. Synchronously, the servo motor A drives the pendulum on the U-shaped frame from the vertical position to the set angle at a set speed through gear A, gear B, connecting shaft A, toothed pulley A, toothed belt A, and toothed pulley B. At this time, the torque sensor A detects the maximum swing torque during the swing of the pendulum, and displays the curve of the swing torque and the swing angle on the touch screen. If the swing torque is within the set range, an alarm is issued; at the same time, the torque sensor B measures the rolling torque when the pendulum swings to the set maximum angle, and displays the curve of the rolling torque and the swing angle on the touch screen. If the rolling torque is within the set range, an alarm is issued. When the swing arm swings to the set maximum angle, in the steel ball detection mechanism, the telescopic end of the horizontal cylinder A drives the longitudinal cylinder A on it to move to the right until it contacts the stopper C and stops. The telescopic end of the longitudinal cylinder A drives the displacement sensor to extend and move to the upper side of the workpiece. When the workpiece rotates, the number of steel balls is detected. When the number of steel balls reaches the specified number, it is qualified, otherwise an alarm is triggered. After the longitudinal cylinder A and the horizontal cylinder A return to their original positions, the horizontal cylinder A contacts the stopper B.

[0047] Place the fixed end section on the workpiece flattening fixture, press the start button, and the workpiece flattening mechanism, cross slide mechanism, gap detection mechanism, torsion and sway torque and steel ball detection mechanism repeat the above actions. The transfer clamps of clamping cylinder C, clamping cylinder D, and clamping cylinder E in the cross slide mechanism clamp the flattened workpiece, the workpiece that has been tested for gap, the workpiece that has been tested for torsion and sway torque and steel ball, and transport them to the gap detection fixture, torsion and sway torque and steel ball detection fixture, and flip the unloading clamps, and then return to the original position. In the unloading mechanism, when the through-beam sensor F on the flip unloading clamp detects the presence of a workpiece, the clamping cylinder B drives the flip unloading clamp to clamp the workpiece, and the telescopic end of the flip cylinder extends through the rack and pinion pair to drive the rotating shaft A on the bracket E to flip 180 degrees, so that the clamping cylinder B fixed to the rotating shaft A drives the workpiece to flip 180 degrees, and loosens the workpiece onto the work surface on the right side of the V-block A. The telescopic end of the flip cylinder retreats, driving the clamping cylinder B to flip 180 degrees back to its original position. When the through-beam sensor E detects the presence of a workpiece, the telescopic end of the push cylinder drives the V-block A to extend, pushes the workpiece onto the lifting plate, and then retreats to its original position. When the distance sensor A 108 detects the presence of a workpiece, the telescopic end of the discharge cylinder drives the V-block B to push the workpiece into the collecting plate, and then retreats to its original position. During the inspection process, the controller will memorize the unqualified workpieces. When the unqualified workpieces are pushed to the lifting plate, in the sorting mechanism, the telescopic end of the lifting cylinder A drives the lifting plate together with the unqualified workpieces to move downward along the double guide rails F fixed on the bracket G so that the unqualified workpieces are located on the left side of the V-block C. When the distance sensor B detects the presence of workpieces, the telescopic end of the NG cylinder drives the V-block C to push the unqualified workpieces into the NG material channel. The unqualified workpieces slide out along the NG material channel, the NG cylinder returns to its original position, and the lifting cylinder A drives the lifting plate to rise to its original position. At this point, a detection cycle of all functions of the workpiece is completed. As the installed fixed end section is placed on the workpiece flattening fixture again, the start button is pressed, and the next detection cycle begins.

[0048] The telescopic cylinder described in this article is a mechanical product of the prior art. The telescopic cylinder generally has a cylinder body as a fixed end, and the cylinder body is fixedly mounted on a component corresponding thereto. The telescopic cylinder also has a telescopic end as a moving end, and the telescopic end is also called a telescopic rod. The telescopic end reciprocates along its axial direction within a designed stroke. The telescopic cylinder is mainly divided into pneumatic telescopic cylinders, electric telescopic cylinders, electromagnetic telescopic cylinders and hydraulic telescopic cylinders, etc. In the present application, pneumatic telescopic cylinders (cylinders) and electric telescopic cylinders are preferred; among them, the pneumatic telescopic cylinder is a prior art product that converts pressurized gas into mechanical action. The pressurized gas output from the total on-site gas source is filtered and stabilized through the gas source triplet and then transported to each pneumatic telescopic cylinder through each air pipe for use.

[0049] The servo motor is a prior art product, and the servo motor can accurately control the rotation angle.

[0050] The servo electric cylinder is a prior art product, and the servo electric cylinder can accurately control the displacement.

[0051] The frame 6 is used to support the components of each device at a designated position above the ground. In the present application, a closed cover is installed on the frame. The workpiece leveling mechanism, gap detection mechanism, torsion torque detection mechanism, and steel ball detection mechanism are located in the closed cover to protect the components; the closed cover is composed of a frame and a translucent or opaque plate fixed between adjacent frames; the on-site operator can observe the operating status of the equipment in real time through the display screen in the controller.

[0052] In order to make the drawings clear, the pipelines, wires and standard parts in the drawings are omitted.

[0053] The controller and each actuator and each electronic device that needs to be shielded and protected are installed in an electrical cabinet 10 arranged on site. The human-machine interface of the controller is preferably a touch screen. The touch control display end of the touch screen is arranged on the surface of the electrical cabinet or installed on the rack, which is convenient for on-site staff to operate. The staff can control the operation of the whole machine or adjust various parameters on the touch screen. An audible and visual alarm 5 is installed on the rack or electrical cabinet to emit specific sound and light to indicate the working state of the online automatic detection machine of the fixed end section of the transmission shaft or to sound an alarm for a fault.

Claims

1. An online automatic testing machine for a fixed end section of a transmission shaft, comprising a frame (6), a worktable (22) and a cross slide mechanism (86) fixedly mounted in the frame, characterized in that: The frame is provided with a touch screen (4) and an audible and visual alarm (5); the middle part of the worktable is provided with a workpiece flattening fixture seat (21), a gap detection fixture seat (20), and a torsion sway torque and steel ball detection fixture seat (17) in sequence from left to right; a steel ball detection mechanism (19) is provided in front of the worktable; a cross slide mechanism (86) is located behind the worktable; a workpiece flattening mechanism (7), a gap detection mechanism (8) and a torsion sway torque detection mechanism (9) are fixedly provided on the frame, the lower part of the workpiece flattening mechanism is opposite to the workpiece flattening fixture seat, the lower part of the gap detection mechanism is opposite to the gap detection fixture seat, the lower part of the torsion sway torque detection mechanism is opposite to the torsion sway torque and steel ball detection fixture seat The workbench is opposite to the seat; a spline alignment mechanism (18) is installed under the workbench, and the spline alignment mechanism corresponds to the position of the torsion torque and steel ball detection fixture seat on the workbench; a fixed end section assembly station (1), a start button (23), and a torque initial judgment device (24) are installed on the left side of the workbench; a discharge mechanism (78) is installed on the right side of the workbench; a collection tray (14) is installed in front of the discharge mechanism, and an NG material channel (15) and a sorting mechanism (117) are installed under the collection tray; the detection machine is provided with an online automatic control system, which includes an electrical cabinet (10), a controller installed in the electrical cabinet, various detection components and actuators installed on the detection machine, and a signal input of the controller The signal output end of the controller is electrically connected to the signal output end of each detection component through a signal line, and the signal output end of the controller is electrically connected to the signal input end of each actuator through a signal line; the unloading mechanism (78) comprises a pushing cylinder (100), a V-block A (104), a clamping cylinder B (12), a rotating shaft A (13), a flip unloading clamp (11), a bracket E (106), a flip cylinder (98), a rack and pinion pair (99), a discharging cylinder (101), a V-block B (102), a beam sensor E (107), a distance sensor A (108), and a beam sensor F (109); wherein the fixed end of the pushing cylinder is fixedly connected to the frame, The telescopic end is fixedly connected to the V-block A (104), the fixed end of the clamping cylinder B (12) is fixedly connected to the rotating shaft A, the telescopic end of the clamping cylinder B is fixedly connected to the flipping and unloading clamping claw, the through-beam sensor F is fixedly mounted on the flipping and unloading clamping claw, the rotating shaft A is rotatably connected to the bracket E (106) fixedly mounted on the frame, the fixed end of the flipping cylinder (98) is fixedly connected to the frame, the telescopic end of the flipping cylinder is fixedly connected to the rotating shaft A through a rack and pinion pair, the fixed end of the discharge cylinder (101) is fixedly connected to the frame, and its telescopic end is fixedly connected to the V-block B (102), on the right side of the V-block A, the through-beam sensor E (107) is fixedly mounted on the frame, and the distance sensor A is fixedly mounted on the frame opposite to the V-block B.

2. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The steel ball detection mechanism (19) comprises a transverse cylinder A (113), a stopper C (105), a stopper B (111), a longitudinal cylinder A (112), and a displacement sensor (110), wherein the transverse cylinder A (113) is fixedly mounted on a worktable, the stopper C and the stopper B are fixedly mounted on the transverse cylinder A, the fixed end of the longitudinal cylinder A is fixedly mounted on the telescopic end of the transverse cylinder A, and the displacement sensor is fixedly mounted on the telescopic end of the longitudinal cylinder A.

3. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The workpiece flattening mechanism (7) comprises a double guide column (26), a bracket A (27), a flattening cylinder (25), a flattening pressure head (29), and a cylindrical boss (30), wherein a double guide sleeve A (28) is fixedly connected to the bracket A (27), the bracket A is fixedly connected to the frame, the fixed end of the flattening cylinder is fixedly connected to the bracket A, the telescopic end of the flattening cylinder is fixedly connected to one end of the double guide column, the telescopic end of the flattening cylinder is fixedly connected to the flattening pressure head (29), a cylindrical boss is arranged below the flattening pressure head, and the double guide column is slidably connected to the double guide sleeve.

4. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The gap detection mechanism (8) comprises a servo electric cylinder (43), a bracket B (42), a slide plate A (45), a bracket C (44), a double slide column (38), a force sensor (41), a connecting block A (37), a guide sleeve (36), a clamping cylinder A (40), a symmetrical clamping jaw (33), a symmetrical clamping jaw upper boss (34), a symmetrical clamping jaw lower boss (32), a pressure plate cylinder (39), a slide plate B (46), a gap detection pressure plate (35), and a single guide rail (31), wherein the fixed end of the servo electric cylinder is fixedly mounted on the bracket B (42), the bracket B is fixedly connected to the frame, the telescopic end of the servo electric cylinder is fixedly connected to the bracket C (44) on the slide plate A (45), and the bracket C is fixedly connected to the slide plate A The double sliding column (38) is fixedly mounted on the bracket C, a force sensor (41) is fixedly mounted below the bracket C, the lower end of the force sensor is fixedly connected to the connecting block A (37), the connecting block A is fixedly connected to the guide sleeve, the sliding column is slidably connected to the guide sleeve, the lower end of the connecting block A is fixedly connected to the fixed end of the clamping cylinder A (40), the telescopic end of the clamping cylinder A is fixedly mounted with a symmetrical clamping claw (33), the symmetrical clamping claw has a symmetrical clamping claw upper boss (34) and a symmetrical clamping claw lower boss (32), the fixed end of the pressure plate cylinder (39) is fixedly connected to the frame, the telescopic end of the pressure plate cylinder is fixedly connected to the slide plate B (46), a gap detection pressure plate is mounted below the slide plate B, the single guide rail (31) is fixedly connected to the frame, and the slide plates A and B are slidably connected to the single guide rail.

5. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The torsion sway torque detection mechanism (9) comprises a double guide rail A (48), a slide plate C (49), a slide plate D (51), a torque position cylinder (47), a buffer cylinder A (50), a servo motor A (54), a gear A (55), a gear B (58), a connecting shaft A (57), a toothed belt pulley A (53), a toothed belt A (52), a toothed belt pulley B (72), a U-shaped frame (59), a swing rod (63), a torque sensor A (56), a rotating shaft B (61), and a bracket D (60), wherein the double guide rail A (48) is fixedly connected to the frame. The slide plate C (49) and the slide plate D (51) are respectively connected to the double guide rail A in a sliding manner. The fixed end of the torque cylinder (47) is fixedly connected to the frame, and the telescopic end is fixedly connected to the slide plate C. The slide plate C is fixedly connected to the fixed end of the buffer cylinder A (50). The telescopic end of the buffer cylinder A is fixedly connected to the slide plate D. The servo motor A (54) is fixedly mounted on the slide plate D. The rotating end of the servo motor A is connected to the toothed belt pulley B (72) through the gear A (55), the gear B (58), the connecting shaft A (57), the toothed belt pulley A (53), the toothed belt A (52), and the toothed belt pulley B (72). The output shaft is fixedly connected to the U-shaped frame (59), a swing rod (63) is mounted on the U-shaped frame, and a swing rod boss (62) is provided on the swing rod. The torque sensor A (56) is mounted on the connecting shaft A (57). The rotating shaft B (61) is fixedly connected to the U-shaped frame and the toothed belt pulley B, and is rotatably connected to a bracket D (60) fixedly mounted on the slide plate D.

6. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The spline alignment mechanism (18) comprises a bracket F (68), a clearance slot (123), a double guide rail D (69), an upper bracket (76), a lower bracket (70), a servo motor B (75), a connecting shaft B (71), a toothed belt B (126), a torque sensor B (73), a lifting cylinder B (64), a connecting block B (66), a buffer cylinder B (74), a spline alignment device (77), an inner spline (119), a limiter F (65), and a limit screw (67); the bracket F (68) is fixedly mounted on the frame, the bracket F is provided with a clearance slot (123), the right side of the bracket F is fixedly mounted with a double guide rail D (69), the upper bracket (76) and the lower bracket (70) are respectively slidably connected to the double guide rail D, and the lower bracket is fixedly mounted with a A servo motor B (75) is provided, a connecting shaft B (71) is rotatably connected to the lower bracket, the servo motor B is rotatably connected to the connecting shaft B via a toothed belt B (126), a torque sensor B (73) is mounted on the connecting shaft B, a fixed end of a lifting cylinder B (64) is fixedly mounted on a frame, a telescopic end of the lifting cylinder B is fixedly connected to the lower bracket via a connecting block B (66) through a yielding groove on a bracket F, a fixed end of a buffer cylinder B (74) is fixedly connected to the lower bracket, a telescopic end of the buffer cylinder B is fixedly connected to the upper bracket, the upper bracket is connected to a spline alignment device (77), an internal spline (119) is provided in the spline alignment device, the connecting shaft B is longitudinally slidably connected to the spline alignment device, a limiter F (65) is fixedly mounted on the bracket F, and a limit screw (67) is fixedly mounted on the lower bracket.

7. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The sorting mechanism (117) comprises a bracket G (120), a double guide rail F (121), a lifting cylinder A (122), a lifting plate (103), an NG cylinder (114), a V-shaped block C (116), and a distance sensor B (115); wherein the bracket G (120) is fixedly mounted below the work table, the double guide rail F (121) is fixedly mounted on the bracket G, the fixed end of the lifting cylinder A (122) is fixedly mounted on the frame, and the telescopic end is fixedly connected to the lifting plate (103), the fixed end of the NG cylinder (114) is fixedly mounted on the frame, the telescopic end of the NG cylinder is fixedly connected to the V-shaped block C (116), a distance sensor B (115) is installed above the V-shaped block C and is opposite to the lifting plate, and the lifting plate and the V-shaped block C are opposite to the entrance of the NG material channel (15) installed below the collecting plate (14).

8. The online automatic detection machine for the fixed end section of the transmission shaft according to claim 1 is characterized in that: The detection components are: distance sensor A, distance sensor B, displacement sensor, force sensor, torque sensor AB, through-beam sensor AF, limiter AG, safety light curtain, touch display screen; the actuators are: clamping cylinder AE, lateral cylinder A, B, longitudinal cylinder A, B, transplanting plate cylinder, flip cylinder, push cylinder, discharging cylinder, NG cylinder, leveling cylinder, pressure plate cylinder, torque cylinder, buffer cylinder A, B, lifting cylinder A, lifting cylinder B, servo electric cylinder, servo motor A, servo motor B, sound and light alarm, safety light curtain.

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