CN213874157U - Online detection device for U-shaped longitudinal beam of vehicle frame - Google Patents

Abstract

The utility model provides a frame U type longeron on-line measuring device, includes the support frame, installs horizontal lead screw on the support frame, the both ends of horizontal lead screw are equipped with soon to opposite outer silk, all installs carriage apron mechanism on the outer silk of every end, and carriage apron mechanism installs transverse guide including the carriage apron on the support frame, be equipped with on the carriage apron with transverse guide matched with horizontal slider, still install on the carriage apron with transverse lead screw matched with horizontal nut, still install drive arrangement in the one end of support frame, drive arrangement can drive horizontal lead screw rotatory, all install slide mechanism on every carriage apron, slide mechanism includes the slide, installs vertical lead screw and vertical guide rail on the carriage apron, be equipped with on the slide with vertical lead screw matched with vertical nut and with vertical guide rail matched with vertical slider.

Description

Online detection device for U-shaped longitudinal beam of vehicle frame

Technical Field

The utility model belongs to the technical field of solebar check out test set technique and specifically relates to a solebar U type longeron on-line measuring device.

Background

The frame is the most important bearing part in the automobile, and the frame longitudinal beam is one of the key parts in the frame longitudinal beam, so the longitudinal beam plays an important bearing role on the automobile. In the cold roll forming production process of frame U type longeron, its technology is with rolling up the material from curling and unrolling, then progressively carry out the roll-in shaping with the multichannel roll, the production of cutting off at last, the product cross sectional shape that straight slab band finally produced can take place ventral tortoise back, cave in, shaping angle error, the off tracking causes defects such as wing height inaccuracy, lead to the frame longeron can't play original bearing effect, in order to avoid the emergence of above-mentioned condition, need for one kind and can carry out the equipment that detects to frame U type longeron in the production process urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a frame U type longeron on-line measuring device realizes the on-line measuring to product shaping shape error through distance measuring sensor and the grating sensor that can the adjusting position to solve the problem that exists among the prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a vehicle frame U-shaped longitudinal beam on-line detection device, which comprises a support frame, wherein a transverse screw rod is arranged on the support frame, two ends of the transverse screw rod are provided with outer screws with opposite rotation directions, an apron mechanism is arranged on the outer screw at each end, the apron mechanism comprises an apron, a transverse guide rail is arranged on the support frame, a transverse slider matched with the transverse guide rail is arranged on the apron, a transverse nut matched with the transverse screw rod is also arranged on the apron, a driving device is also arranged at one end of the support frame, the driving device can drive the transverse screw rod to rotate, a slider mechanism is arranged on each apron, the slider mechanism comprises a slider, a vertical screw rod and a vertical guide rail are arranged on the apron, a vertical nut matched with the vertical screw rod and a vertical slider matched with the vertical guide rail are arranged on the slider, a second servo motor is also arranged at the bottom of the apron, the output shaft of the second servo motor is connected with the vertical screw rod through a second speed reducer, one end, away from the vertical nut, of the sliding plate is provided with a groove, grating sensors are installed on the outer sides of the sliding plates on two sides of the groove, a first distance measuring sensor is further installed on the upper side of the sliding plate, a second distance measuring sensor is installed at the middle position of the sliding plate, a third distance measuring sensor is installed on a support frame between the two sliding plates, and a fourth distance measuring sensor is installed on the inner side of the sliding plate. The driving device comprises a hand wheel, and a rotating shaft of the hand wheel is connected with the transverse screw rod. The driving device comprises a first servo motor, and an output shaft of the first servo motor is connected with the transverse screw rod through a first speed reducer. All install buffer stop in the recess of carriage apron and slide, buffer stop is including the dead lever, the one end of dead lever is equipped with spacing protruding edge, detachable stop nut is installed to the other end of dead lever, still the cover is equipped with first lantern ring and second lantern ring in the dead lever periphery between spacing protruding edge and stop nut, wherein install proximity switch on the first lantern ring, install limit baffle on the second lantern ring, be equipped with first spring between first lantern ring and the spacing protruding edge, first spring has the trend that makes first lantern ring keep away from spacing protruding edge all the time, be equipped with the second spring between first lantern ring and the second lantern ring, the second spring has the trend that makes the second lantern ring keep away from first lantern ring all the time, limit baffle can compress the second spring and contact with proximity switch. The anti-collision device is arranged in a groove of the sliding plate and comprises a first tension spring arranged between the sliding plate and the second speed reducer, the first tension spring always tends to move the sliding plate downwards, a touch follow-up device and a linkage unlocking device are arranged on the sliding plate, a locking device is arranged between the sliding plate and the vertical nut and can drive the linkage unlocking device to release the locking state of the locking device between the sliding plate and the vertical nut, the touch follow-up device comprises a limit baffle and a follow-up rod, one end of the follow-up rod is fixedly provided with the limit baffle, the other end of the follow-up rod penetrates through the sliding plate and is provided with a connecting plate, a first sleeve ring is sleeved on the follow-up rod, a proximity switch is arranged on the first sleeve ring, a detection rod which can be detected by the proximity switch is arranged on the limit baffle, and a third spring is arranged on the periphery of the follow-up rod between the first sleeve ring and the sliding plate, the third spring always has a tendency of keeping the first collar away from the sliding plate, a follow-up unlocking block is further installed on one side of the first collar, the linkage unlocking device comprises a first installation box and a second installation box which are fixed on the sliding plate, a ratchet wheel and a pawl which are matched with each other are arranged in the first installation box, a first positioning column and a second positioning column are respectively arranged on two sides of the pawl, the pawl can limit rotation of the ratchet wheel when the first positioning column limits rotation of the pawl, the ratchet wheel can freely rotate relative to the pawl when the second positioning column limits rotation of the pawl, an unlocking deflector rod is further installed on the pawl, an avoiding groove matched with the unlocking deflector rod is formed in the first installation box, the unlocking deflector rod extends out of the first installation box through the avoiding groove, the follow-up unlocking block can push the unlocking deflector rod to drive the pawl to rotate so as to relieve locking of the ratchet wheel, a first wire wheel is coaxially installed on the ratchet wheel, and a second wire wheel is installed in the first installation box, the first wire wheel and the second wire wheel are provided with a steel wire rope in a matching way, a section of steel wire rope close to the second wire wheel is welded on the first wire wheel, one end of the steel wire rope bypasses the first wire wheel and penetrates out of the first mounting box, a through groove is arranged on the sliding plate corresponding to the position of the steel wire rope penetrating out of the first mounting box, the steel wire rope is connected with the connecting plate through a second tension spring, the second tension spring is positioned in the through groove, the other end of the steel wire rope bypasses the second wire wheel and extends into the second mounting box, an unlocking sliding block is arranged in the second mounting box in a matching way, one end of the unlocking sliding block is fixedly connected with the steel wire rope, the other end of the unlocking sliding block is provided with a plugging plate, a fourth spring is also arranged in the second mounting box, the fourth spring always has the tendency of leading the plugging plate to extend out of the second mounting box, a locking device is arranged between the sliding plate and the vertical nut corresponding to the position of the plugging plate, the locking device comprises a first mounting sleeve and a second mounting sleeve, a mounting hole matched with the first mounting sleeve is arranged in the vertical nut, the first mounting sleeve is fixed in the mounting hole, a fifth spring is fixed in the first mounting sleeve, a second mounting sleeve is fixed in the sliding plate and corresponds to the first mounting sleeve, a locking sliding block matched with the second mounting sleeve is arranged in the second mounting sleeve, one end of the locking sliding block is connected with a locking ball, the locking ball can extend into the mounting hole to lock the sliding plate and the vertical nut, a limiting rod is arranged at the other end of the locking sliding block, a limiting ring is arranged in one end of the second mounting sleeve extending out of the sliding plate, a limiting rod can penetrate out of the second mounting sleeve through the limiting ring, the limiting ring can limit the locking slide block to extend out of the second mounting sleeve, when the plugging plate extends out of the end part of the second mounting sleeve, the locking ball compresses the fifth spring to enter the mounting hole, and the sliding plate and the vertical nut are fixedly connected.

The utility model has the advantages of: a frame U type longeron on-line measuring device, mobilizable carriage apron, slide and the range finding sensor and the grating sensor of installing on it can adjust the position according to the frame U type longeron's that needs detected specification, the frame U type longeron detection demand of the different specifications of automatic adaptation to section shape data such as ventral surface width, airfoil height, shaping angle, ventral surface plane degree of on-line real-time detection frame U type longeron feeds back to production line control system, and then guarantees the quality of frame U type longeron of producing.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

FIG. 5 is a schematic structural view of the anti-collision device of the present invention;

FIG. 6 is an enlarged view of view A of FIG. 5;

FIG. 7 is a schematic view of another anti-collision device attached to the skateboard;

FIG. 8 is an enlarged view of the view from the B direction in FIG. 7;

FIG. 9 is an enlarged partial view of I of FIG. 8;

fig. 10 is a schematic view of the anti-collision device of fig. 8 separating the slide plate from the vertical nut.

Detailed Description

A frame U type longeron on-line measuring device, as shown in figure 1 and figure 2, including support frame 1, install horizontal lead screw 2 on the support frame 1, the both ends of horizontal lead screw 2 are equipped with soon to opposite outer silk, all install carriage apron mechanism on the outer silk of every end, carriage apron mechanism is including carriage apron 3, as shown in figure 3, install transverse guide 4 on the support frame 1, be equipped with on the carriage apron 3 with transverse guide 4 matched with horizontal slider 5, still install on the carriage apron 3 with transverse lead screw 2 matched with horizontal nut 6, still install drive arrangement in the one end of support frame 1, drive arrangement can drive two carriage aprons 3 and be close to or the separation removal on transverse guide 4 in opposite directions. As shown in fig. 5, the driving device may be a hand wheel 22, a rotating shaft of the hand wheel 22 is connected with the transverse screw rod 2, the hand wheel 22 may be rotated by manual operation, in order to reduce labor intensity of an operator and improve adjustment accuracy of the position of the carriage 3, the driving device may be a first servo motor 7, and an output shaft of the first servo motor 7 is connected with the transverse screw rod 2 through a first speed reducer 8.

Each slide carriage 3 is provided with a slide plate mechanism, as shown in fig. 4, each slide plate mechanism comprises a slide plate 9, each slide carriage 3 is provided with a vertical screw rod 10 and a vertical guide rail 12, each slide plate 9 is provided with a vertical nut 11 matched with the vertical screw rod 10 and a vertical slide block 13 matched with the vertical guide rail 12, the bottom of each slide carriage 3 is further provided with a second servo motor 14, an output shaft of each second servo motor 14 is connected with the corresponding vertical screw rod 10 through a second speed reducer 15, and each second servo motor 14 can drive the corresponding slide plate 9 to perform height adjustment on the corresponding vertical guide rail 12 when being started, wherein the slide plates 9 can move horizontally along with the slide carriages 3 and can also perform vertical lifting automatically.

A groove 16 is arranged at one end of the sliding plate 9 far away from the vertical nut 11, a grating sensor 17 is arranged at the outer side of the sliding plate 9 at the two sides of the groove 16, the groove 16 is arranged to provide necessary space for the U-shaped longitudinal beam wing plate of the frame to pass through, a first distance measuring sensor 18 is also arranged on the upper side of the slide carriages 3, a second distance measuring sensor 19 is arranged at the middle position of the slide carriages 3, a third distance measuring sensor 20 is arranged on the supporting frame 1 between the two slide carriages 3, a fourth distance measuring sensor 21 is arranged on the inner side of the slide carriage 9, all the sensors can adjust the position along with the slide carriages 3 or the slide carriage 9, the support frame 1 is installed behind a host of a cold roll forming production line of a U-shaped longitudinal beam of a frame, the positions of sensors are adjusted according to the specifications of the longitudinal beam to be produced, the formed U-shaped beam passes through a through hole in the middle of the device and is conveyed forwards, and the device can perform real-time online scanning detection on the finished U-shaped beam.

Two of the first distance measuring sensors 18 and one of the third distance measuring sensors 20 respectively measure the distance to the U-shaped longitudinal beam of the frame, and the ventral surface planeness shape can be analyzed by comparing the three values. And calculating according to the position of the slide carriage 3 determined by the first servo motor 7 and two distance values measured by the second distance measuring sensors 19 on two sides to obtain the ventral side opening size of the U-shaped longitudinal beam of the frame. The fourth distance measuring sensor 21 can measure the distance from the grating sensor 17 to the lower part of the wing surface of the U-shaped beam, the size of the lower opening of the U-shaped longitudinal beam of the frame can be obtained by calculating the value and the sensor position data determined by the first servo motor 7 and the second servo motor 14, and the forming angle of the two wing edges of the U-shaped longitudinal beam of the frame can be obtained by comparing and analyzing the value measured by the second distance measuring sensor 19 and the height position of the sliding plate 9 determined by the second servo motor 14.

And comparing and analyzing the two wing edge values measured by the grating sensor 17 with the values obtained by the height position of the sliding plate 9 determined by the second servo motor 14 and the first distance measuring sensor 18 and the third distance measuring sensor 20 to obtain the heights of the two wing edges of the U-shaped longitudinal beam of the frame. The first distance measuring sensor 18 and the third distance measuring sensor 20 can be used for comparing the measured values, and whether the ventral surface has defects such as tortoise back and depression can be analyzed. The distance from the second distance measuring sensor 19 to the wing surface of the U-shaped beam can be analyzed to judge whether the width of the ventral surface of the U-shaped beam has errors or not by combining the position of the slide carriage 3 determined by the first servo motor 7. The two fourth distance measuring sensors 21 can obtain the opening size of the U-shaped beam, and the U-shaped beam forming angle error can be analyzed by combining the numerical values of the two second distance measuring sensors 19. The values measured by the two grating sensors 17 in combination with the values measured by the first distance measuring sensor 18 and the third distance measuring sensor 20 can be used to determine the height dimensions of the two airfoils.

When using a frame U type longeron is during on-line measuring device, the support frame 1 of this device is installed on the ground support or other equipment at the rear of frame U type longeron cold-bending make-up machine, before production, produce the U type roof beam specification that detects as required earlier, the carriage apron 3 and the slide 9 adjustment of both sides target in place, make on the range finding sensor on the carriage apron 3 can detect on the U type roof beam ventral fillet internal planes, range finding sensor on the slide 9 can detect on the U type roof beam airfoil, the airfoil lower edge is in grating sensor 17's detection range, in the production process, finished product U type roof beam passes through at the uniform velocity in the clearing hole of device, this detection device can carry out data detection to U type roof beam cross-section size according to control center's program setting.

In the continuous real-time detection process, in order to avoid that the U-shaped longitudinal beam of the vehicle frame to be detected collides with the device due to the jamming or other special conditions which cannot be adjusted in the process of adjusting the slide carriage 3 and the slide plate 9, as shown in fig. 5, anti-collision devices are arranged in the grooves 16 of the slide carriage 3 and the slide plate 9, if the jamming occurs in the adjustment process, the U-shaped longitudinal beam of the vehicle frame to be detected firstly contacts with the anti-collision devices before the collision of the device occurs, then the power supply for transporting the U-shaped longitudinal beam of the vehicle frame is turned off to avoid the collision of the U-shaped longitudinal beam of the vehicle frame with the device, as shown in fig. 6, the anti-collision devices comprise fixing rods 23, one ends of the fixing rods 23 are provided with limiting convex edges 24, the other ends of the fixing rods 23 are provided with detachable limiting nuts 25, the peripheries of the fixing rods 23 between the limiting convex edges 24 and the limiting nuts 25 are further sleeved with first collars 26 and second collars 27, wherein the first lantern ring 26 is provided with a proximity switch 28, the proximity switch 28 is connected with a power device for transporting the U-shaped longitudinal beam of the vehicle frame through a control circuit, the second lantern ring 27 is provided with a limit baffle 29, the limit baffle 29 is positioned at the front side of the slide carriage 3 or the slide plate 9, a first spring 30 is arranged between the first lantern ring 26 and the limit convex edge 24, the first spring 30 always has the trend of leading the first lantern ring 26 to be away from the limit convex edge 24, a second spring 31 is arranged between the first lantern ring 26 and the second lantern ring 27, the second spring 31 always has the trend of leading the second lantern ring 27 to be away from the first lantern ring 26, wherein the mounting angle between the anti-collision device on the slide carriage 3 and the anti-collision device in the groove 16 is ninety degrees different, namely the limit baffle 29 of the anti-collision device on the slide carriage 3 is horizontally arranged for corresponding to the width distance of the web surface of the U-shaped longitudinal beam of the vehicle frame to be detected, the limit baffle 29 of the anti-collision device in the groove 16 is vertically arranged, the height distance of the wing surface of the U-shaped longitudinal beam of the frame to be detected is used for corresponding. The elastic force of the first spring 30 is greater than that of the second spring 31, so that the U-shaped longitudinal beam of the frame to be detected can firstly push the limit baffle 29 to overcome the elastic force of the second spring 31 to be in contact with the proximity switch 28, and then the first spring 30 is compressed to buffer, and in the actual installation process, the first spring 30 can be used by a spring with a diameter larger than that of the second spring 31, so as to ensure the realization of the functions.

When the phenomenon of jamming occurs in the adjustment process, the U-shaped longitudinal beam of the vehicle frame to be detected firstly contacts with the limit baffle 29 in the advancing process, and the second spring 31 is compressed in the continuous advancing process to enable the limit baffle 29 to contact with the proximity switch 28, the proximity switch 28 stops conveying of the U-shaped longitudinal beam of the vehicle frame after contacting with the limit baffle 29, so that collision between the U-shaped longitudinal beam of the vehicle frame and the device is avoided, wherein the first spring 30 is arranged to play a certain buffering role for the limit baffle 29 and the proximity switch 28 when the U-shaped longitudinal beam is about to stop moving, hard contact between the U-shaped longitudinal beam and the limit baffle 29 and between the U-shaped longitudinal beam and the proximity switch 28 is avoided, and the service life of the proximity switch 28 is prolonged.

In order to avoid the above situation, as shown in fig. 7, the groove 16 of the sliding plate 9 is provided with an anti-collision device, the anti-collision device comprises a first tension spring 32 arranged between the sliding plate 9 and a second speed reducer 15, the first tension spring 32 always tends to move the sliding plate 9 downwards, as shown in fig. 8, the sliding plate 9 is provided with a touch follow-up device and a linkage unlocking device, a locking device is arranged between the sliding plate 9 and a vertical nut 11, the locking device connects the sliding plate 9 and the vertical nut 11 into a whole under normal state, the sliding plate 9 can be lifted together under the drive of the vertical nut 11, once misoperation occurs or jamming or other special situations due to faults occur or other special situations which cannot be adjusted occur, the vehicle frame U-shaped longitudinal beam is about to collide with the sliding plate 9, the touch follow-up device can drive the linkage unlocking device to unlock the locking device between the sliding plate 9 and the vertical nut 11, the sliding plate 9 can be lowered to the bottommost part of the vertical guide rail 12 under the action of the pulling force of the first tension spring 32, and the vehicle frame U-shaped longitudinal beam collision accident after the conveying is stopped is avoided.

The touch follow-up device comprises a limit baffle 29 and a follow-up rod 33, the limit baffle 29 is fixedly installed at one end of the follow-up rod 33, the other end of the follow-up rod 33 penetrates through the sliding plate 9 and is provided with a connecting plate 34, a first sleeve ring 26 is sleeved on the follow-up rod 33, a proximity switch 28 is arranged on the first sleeve ring 26, a detection rod 35 capable of being detected by the proximity switch 28 is installed on the limit baffle 29, and when the frame U-shaped longitudinal beam pushes the limit baffle 29 and the detection rod 35 on the limit baffle 29 to be detected by the proximity switch 28, the conveying power of the frame U-shaped longitudinal beam is stopped.

A third spring 36 is arranged on the periphery of the follower rod 33 between the first collar 26 and the sliding plate 9, the third spring 36 always tends to enable the first collar 26 to be far away from the sliding plate 9, a follow-up unlocking block 37 is further arranged on one side of the first collar 26, if the frame U-shaped longitudinal beam still tends to move close to the sliding plate 9 after the power transmission is closed, the limit baffle 29 can continuously push the first collar 26 to compress the third spring 36 to move, the follow-up unlocking block 37 can move along with the first collar 26 in the process, and a linkage unlocking device is started to realize the separation of the sliding plate 9 and the vertical nut 11.

The linkage unlocking device comprises a first mounting box 38 and a second mounting box 39 which are fixed on the sliding plate 9, a ratchet wheel 40 and a pawl 41 which are matched with each other are arranged in the first mounting box 38, as shown in fig. 9, a first positioning column 42 and a second positioning column 43 are respectively arranged on two sides of the pawl 41, the first positioning column 42 and the second positioning column 43 can limit the rotation of the pawl 41, when the first positioning column 42 limits the rotation of the pawl 41, as shown in fig. 9, the pawl 41 can limit the clockwise rotation of the ratchet wheel 40, and when the second positioning column 43 limits the rotation of the pawl 41, as shown in fig. 10, the ratchet wheel 40 can freely rotate relative to the pawl 41, that is, the pawl 41 can control whether the ratchet wheel 40 rotates or not.

The pawl 41 is further provided with an unlocking shift lever 44, the first mounting box 38 is provided with an avoiding groove 45 matched with the unlocking shift lever 44, the unlocking shift lever 44 extends out of the first mounting box 38 through the avoiding groove 45, and two ends of the avoiding groove 45 also limit the rotation range of the unlocking shift lever 44, which is similar to the rotation limitation of the first positioning column 42 and the second positioning column 43 on the pawl 41. The follow-up unlocking block 37 can push the unlocking shift lever 44 to drive the pawl 41 to rotate, so that the ratchet 40 is unlocked.

The ratchet wheel 40 is coaxially provided with a first wire wheel 46, a second wire wheel 47 is arranged in the first mounting box 38, a steel wire rope 48 is arranged on the first wire wheel 46 and the second wire wheel 47 in a matched mode, the second wire wheel 47 can play a role in guiding the steel wire rope 48, one section of the steel wire rope 48 close to the second wire wheel 47 is welded on the first wire wheel 46, as shown in fig. 8, the steel wire rope 48 is fixed on the first wire wheel 46 through a welding point 62, the welding point 62 is arranged at one end of the first wire wheel 46 far away from the pawl 41, and on the premise that the ratchet wheel 40 and the first wire wheel 46 do not rotate, the steel wire rope 48 cannot move.

One end of the steel wire rope 48 goes around the first pulley 46 and penetrates out of the first mounting box 38, a through groove 49 is formed in the sliding plate 9 corresponding to the position, penetrating out of the first mounting box 38, of the steel wire rope 48, the steel wire rope 48 is connected with the connecting plate 34 through a second tension spring 50, the second tension spring 50 is located in the through groove 49, on the premise that the ratchet 40 is locked, the connecting plate 34 moves to firstly pull the second tension spring 50 to extend, elastic potential energy is stored, and once the ratchet 40 is unlocked, the second tension spring 50 can instantly pull the steel wire rope 48 to move.

The other end of the steel wire rope 48 bypasses the second wire wheel 47 and extends into the second mounting box 39, an unlocking sliding block 51 is installed in the second mounting box 39 in a matched mode, one end of the unlocking sliding block 51 is fixedly connected with the steel wire rope 48, a plugging plate 52 is installed at the other end of the unlocking sliding block 51, a fourth spring 53 is further installed in the second mounting box 39, the fourth spring 53 always has the tendency that the plugging plate 52 extends out of the second mounting box 39, and the plugging plate 52 in the extending state enables the sliding plate 9 and the vertical nut 11 to be fixedly connected through a locking device.

A locking device is arranged between the sliding plate 9 and the vertical nut 11 corresponding to the position of the blocking plate 52, the locking device comprises a first mounting sleeve 54 and a second mounting sleeve 55, a mounting hole 56 matched with the first mounting sleeve 54 is formed in the vertical nut 11, the first mounting sleeve 54 is fixed in the mounting hole 56, a fifth spring 57 is further fixed in the first mounting sleeve 54, the end part of the fifth spring 57 does not extend out of the mounting hole 56 in a normal state, the second mounting sleeve 55 is fixed in the sliding plate 9 and corresponds to the first mounting sleeve 54, a locking slide block 58 matched with the second mounting sleeve 55 is arranged in the second mounting sleeve 55, one end of the locking slide block 58 is connected with a locking ball 59, the locking ball 59 can extend into the mounting hole 56 to lock the sliding plate 9 and the vertical nut 11, a limiting rod 60 is arranged at the other end of the locking slide block 58, a limiting ring 61 is arranged in one end of the second mounting sleeve 55 extending out of the sliding plate 9, the limiting rod 60 can penetrate out of the second mounting sleeve 55 through the limiting ring 61, the limiting ring 61 can limit the locking sliding block 58 to extend out of the second mounting sleeve 55, when the plugging plate 52 extends out of the end portion of the second mounting sleeve 55, the locking ball 59 compresses the fifth spring 57 to enter the mounting hole 56, and the sliding plate 9 and the vertical nut 11 are fixedly connected. The first mounting sleeve 54 and the second mounting sleeve 55 are arranged to facilitate uniform integral mounting of various parts in the locking device, the locking ball 59 is limited by the arrangement of the first mounting sleeve 54, excessive entering of the locking ball 59 into the mounting hole 56 is avoided, the arrangement of the upper arc surface of the locking ball 59 enables the sliding plate 9 and the vertical nut 11 to lose fixed connection conveniently when the locking ball 59 is larger than a half of the locking ball 59 to exit from the mounting hole 56, and the situation that the locking ball 59 cannot be completely pushed out of the mounting hole 56 due to insufficient elasticity of the fifth spring 57 is avoided. The locking ball 59, the locking slider 58 and the stopper rod 60 are connected together, so that the locking ball 59 ejected from the mounting hole 56 is prevented from scattering to the bottom of the whole device.

When the frame U-shaped longitudinal beam contacts with the limit baffle 29 and drives the limit baffle 29 and the follower rod 33 to move together in the moving process, the connecting plate 34 moves upwards in the direction shown in fig. 8, the steel wire rope 48 tends to be pulled to move upwards, the follower unlocking block 37 does not move along the follower rod 33 and does not contact with the unlocking deflector rod 44 before the limit baffle 29 is not in contact with the first lantern ring 26, the pawl 41 limits the clockwise rotation of the ratchet wheel 40 and the first wire wheel 46 in the process, the steel wire rope 48 cannot move, the upward moving connecting plate 34 only can extend the second tension spring 50 to store elastic potential energy, and under the elastic force action of the fourth spring 53, the blocking plate 52 extends out to enable the locking device to fixedly connect the sliding plate 9 with the vertical nut 11.

Then the frame U-shaped longitudinal beam continues to drive the limit baffle 29 to move upwards in the direction shown in fig. 8 until the detection rod 35 is detected by the proximity switch 28, at this time, the transmission power of the frame U-shaped longitudinal beam is cut off, if the frame U-shaped longitudinal beam still moves upwards under the action of inertia, the first collar 26 will be pushed to compress the third spring 36 to move upwards, in the process that the first collar 26 moves upwards, the unlocking block 37 will push the unlocking shift lever 44 to rotate the pawl 41 clockwise to release the limitation on the ratchet 40, at the moment that the ratchet 40 is unlocked, the second tension spring 50 will return to the initial state, the steel wire rope 48 will be pulled to move upwards along with the connecting plate 34, so that the unlocking slide block 51 compresses the fourth spring 53 to move leftwards, the blocking plate 52 is driven to be separated from the end of the second mounting sleeve 55, as shown in fig. 10, the blocked limit rod 60 will extend out of the second mounting sleeve 55 under the elastic force of the fifth spring 57, meanwhile, the locking ball 59 moves downwards along with the locking slider 58 in the direction shown in fig. 8 and exits from the position of the mounting hole 56, at the moment, the connection between the sliding plate 9 and the vertical nut 11 is lost, and the sliding plate 9 moves downwards under the action of the tension of the first tension spring 32, so that the collision with the U-shaped longitudinal beam of the frame is avoided.

The anti-collision device can also be arranged on the slide carriage 3 and the transverse nut 6, the tension spring is arranged between the slide carriage 3 and the support frame 1, the tension spring always has the tendency of keeping away from the slide carriages 3 on the two sides, namely, in the process of continuously moving the U-shaped longitudinal beam of the frame, the slide carriage 3 is separated from the transverse nut 6, and then the tension spring is kept away from each other under the action of the tension force of the tension spring, so that a sufficient space for the U-shaped longitudinal beam of the frame to pass through is reserved.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims (5)

1. The utility model provides a frame U type longeron on-line measuring device which characterized in that: including support frame (1), install horizontal lead screw (2) on support frame (1), the both ends of horizontal lead screw (2) are equipped with soon to opposite outer silk, all installs carriage apron mechanism on the outer silk of every end, and carriage apron mechanism installs transverse guide (4) including carriage apron (3) on support frame (1), is equipped with on carriage apron (3) with transverse guide (4) matched with horizontal slider (5), still install on carriage apron (3) with horizontal lead screw (2) matched with horizontal nut (6), still install drive arrangement in the one end of support frame (1), drive arrangement can drive horizontal lead screw (2) rotatory, all installs carriage apron mechanism on every carriage apron (3), carriage apron mechanism includes slide (9), installs vertical lead screw (10) and vertical guide (12) on carriage apron (3), is equipped with on slide (9) with vertical lead screw (10) matched with vertical nut (11) and with vertical guide (12) matched with vertical guide (12) To slider (13), still install second servo motor (14) in the bottom of carriage apron (3), the output shaft of second servo motor (14) is connected with vertical lead screw (10) through second speed reducer (15), slide (9) are kept away from the one end of vertical nut (11) and are seted up fluted (16), and grating sensor (17) are installed in slide (9) the outside of recess (16) both sides, still install first range finding sensor (18) at carriage apron (3) upside, and second range finding sensor (19) are installed to the intermediate position department of carriage apron (3), install third range finding sensor (20) on support frame (1) between two carriage apron (3), and fourth range finding sensor (21) are installed to the inboard of slide (9).

2. The on-line detection device for the U-shaped longitudinal beam of the frame as claimed in claim 1, wherein: the driving device comprises a hand wheel (22), and a rotating shaft of the hand wheel (22) is connected with the transverse screw rod (2).

3. The on-line detection device for the U-shaped longitudinal beam of the frame as claimed in claim 1, wherein: the driving device comprises a first servo motor (7), and an output shaft of the first servo motor (7) is connected with the transverse screw rod (2) through a first speed reducer (8).

4. The on-line detection device for the U-shaped longitudinal beam of the frame as claimed in claim 1, wherein: the anti-collision device is arranged in the groove (16) of the slide carriage (3) and the slide plate (9) and comprises a fixing rod (23), a limiting convex edge (24) is arranged at one end of the fixing rod (23), a detachable limiting nut (25) is arranged at the other end of the fixing rod (23), a first lantern ring (26) and a second lantern ring (27) are further sleeved on the periphery of the fixing rod (23) between the limiting convex edge (24) and the limiting nut (25), a proximity switch (28) is arranged on the first lantern ring (26), a limiting baffle plate (29) is arranged on the second lantern ring (27), a first spring (30) is arranged between the first lantern ring (26) and the limiting convex edge (24), the first spring (30) always tends to enable the first lantern ring (26) to be far away from the limiting convex edge (24), and a second spring (31) is arranged between the first lantern ring (26) and the second lantern ring (27), the second spring (31) always has the tendency of leading the second lantern ring (27) to be far away from the first lantern ring (26), and the limit baffle (29) can compress the second spring (31) to be contacted with the proximity switch (28).

5. The on-line detection device for the U-shaped longitudinal beam of the frame as claimed in claim 1, wherein: the anti-collision device is installed in a groove (16) of the sliding plate (9), the anti-collision device comprises a first tension spring (32) installed between the sliding plate (9) and a second speed reducer (15), the first tension spring (32) always tends to enable the sliding plate (9) to move downwards, a touch follow-up device and a linkage unlocking device are installed on the sliding plate (9), a locking device is installed between the sliding plate (9) and a vertical nut (11), the touch follow-up device can drive the linkage unlocking device to unlock the locking state of the locking device between the sliding plate (9) and the vertical nut (11), the touch follow-up device comprises a limit baffle (29) and a follow-up rod (33), a limit baffle (29) is fixedly installed at one end of the follow-up rod (33), the other end of the follow-up rod (33) penetrates out of the sliding plate (9) and is provided with a connecting plate (34), and a first lantern ring (26) is sleeved on the follow-up rod (33), the first lantern ring (26) is provided with a proximity switch (28), a detection rod (35) which can be detected by the proximity switch (28) is installed on the limit baffle (29), a third spring (36) is installed on the periphery of a follow-up rod (33) between the first lantern ring (26) and the sliding plate (9), the third spring (36) always tends to enable the first lantern ring (26) to be far away from the sliding plate (9), a follow-up unlocking block (37) is further installed on one side of the first lantern ring (26), the linkage unlocking device comprises a first installation box (38) and a second installation box (39) which are fixed on the sliding plate (9), a ratchet wheel (40) and a pawl (41) which are matched with each other are arranged in the first installation box (38), a first positioning column (42) and a second positioning column (43) are respectively arranged on two sides of the pawl (41), and when the first positioning column (42) limits the rotation of the pawl (41), the pawl (41) can limit the rotation of the ratchet wheel (40), when the second positioning column (43) limits the rotation of the pawl (41), the ratchet wheel (40) can freely rotate relative to the pawl (41), an unlocking deflector rod (44) is further installed on the pawl (41), an avoiding groove (45) matched with the unlocking deflector rod (44) is formed in the first installation box (38), the unlocking deflector rod (44) extends out of the first installation box (38) through the avoiding groove (45), the follow-up unlocking block (37) can push the unlocking deflector rod (44) to drive the pawl (41) to rotate, so that the locking of the ratchet wheel (40) is relieved, a first wire wheel (46) is coaxially installed on the ratchet wheel (40), a second wire wheel (47) is installed in the first installation box (38), a steel wire rope (48) is installed on the first wire wheel (46) and the second wire wheel (47) in a matched mode, a section of the steel wire rope (48) close to the second wire wheel (47) is welded on the first wire wheel (46), and one end of the steel wire rope (48) bypasses the first wire wheel (46) and penetrates out of the first installation box (38), corresponding to the position of the steel wire rope (48) penetrating out of the first mounting box (38), a through groove (49) is formed in the sliding plate (9), the steel wire rope (48) is connected with the connecting plate (34) through a second tension spring (50), the second tension spring (50) is located in the through groove (49), the other end of the steel wire rope (48) bypasses a second wire wheel (47) and extends into the second mounting box (39), an unlocking sliding block (51) is installed in the second mounting box (39) in a matched mode, one end of the unlocking sliding block (51) is fixedly connected with the steel wire rope (48), a plugging plate (52) is installed at the other end of the unlocking sliding block (51), a fourth spring (53) is further installed in the second mounting box (39), the trend that the plugging plate (52) extends out of the second mounting box (39) is always achieved through the fourth spring (53), and a locking device is installed between the sliding plate (9) and the vertical nut (11) corresponding to the position of the plugging plate (52), the locking device comprises a first mounting sleeve (54) and a second mounting sleeve (55), a mounting hole (56) matched with the first mounting sleeve (54) is formed in the vertical nut (11), the first mounting sleeve (54) is fixed in the mounting hole (56), a fifth spring (57) is further fixed in the first mounting sleeve (54), the second mounting sleeve (55) is fixed in the sliding plate (9) and corresponds to the first mounting sleeve (54), a locking sliding block (58) matched with the second mounting sleeve (55) is arranged in the second mounting sleeve (55), one end of the locking sliding block (58) is connected with a locking ball (59), the locking ball (59) can extend into the mounting hole (56) to lock the sliding plate (9) and the vertical nut (11), a limiting rod (60) is installed at the other end of the locking sliding block (58), a limiting ring (61) is installed in one end, extending out of the sliding plate (9), of the second mounting sleeve (55), and the limiting rod (60) can penetrate out of the second mounting sleeve (55) through the limiting ring (61), the limiting ring (61) can limit the locking sliding block (58) to extend out of the second mounting sleeve (55), and when the plugging plate (52) extends out of the end part of the second mounting sleeve (55), the locking ball (59) compresses the fifth spring (57) to enter the mounting hole (56), so that the sliding plate (9) and the vertical nut (11) are fixedly connected.

Images