CN112362017A - Centering measuring mechanism and automatic wheel measuring machine thereof - Google Patents
Centering measuring mechanism and automatic wheel measuring machine thereof Download PDFInfo
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- CN112362017A CN112362017A CN202011360743.1A CN202011360743A CN112362017A CN 112362017 A CN112362017 A CN 112362017A CN 202011360743 A CN202011360743 A CN 202011360743A CN 112362017 A CN112362017 A CN 112362017A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
- G01B21/14—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
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Abstract
The invention provides a centering measuring mechanism, which comprises a moving mechanism, a rotating mechanism, a centering mechanism and a detecting mechanism, wherein the rotating mechanism, the centering mechanism and the detecting mechanism are all arranged on a lifting sliding plate of the moving mechanism, the moving mechanism drives the rotating mechanism, the centering mechanism and the detecting mechanism to move up and down, the rotating mechanism drives the centering mechanism and the detecting mechanism to rotate, and the centering mechanism and the detecting mechanism are matched to detect the inner diameter of a hub hole of a wheel.
Description
Technical Field
The invention relates to the technical field of geometric quantity detection of wheels of railway locomotives and vehicles, in particular to a centering measuring mechanism and an automatic wheel measuring machine thereof.
Background
The wheel is a main part for bearing the running of the vehicle and is one of important interchange parts in vehicle maintenance, the technical parameter state of the wheel directly influences the safe and stable running of the vehicle, and accurate measurement and detection results must be timely and accurately provided.
The conventional wheel hub aperture detection mainly adopts a manual detection means of a universal measuring tool, and has the defects of low efficiency, large error and detection result interference caused by human factors. Meanwhile, the wheels with multiple specifications have different wheel hub apertures, and difficulty is brought to high-precision, automation, intellectualization, contact type relative measurement and multi-specification detection.
Disclosure of Invention
In order to solve the problems, the invention provides a centering measuring mechanism and an automatic wheel measuring machine thereof.
The object of the invention is achieved in the following way:
the utility model provides a centering measuring mechanism, includes moving mechanism, rotation mechanism, centering mechanism and detection mechanism all set up on moving mechanism's lift slide, moving mechanism drives rotation mechanism, centering mechanism and detection mechanism and reciprocates, and rotation mechanism drives centering mechanism and detection mechanism and rotates, and centering mechanism and detection mechanism cooperate the wheel hub bore internal diameter that uses detection wheel.
The moving mechanism comprises a lifting cylinder and a lifting sliding plate, the lifting cylinder and the lifting sliding plate are used for controlling lifting, the lifting cylinder and the lifting sliding plate are fixed at the middle part of the gantry frame, the lifting cylinder is connected with the lifting sliding plate in a sliding mode through a lifting sliding seat, a lifting sliding block is arranged below the lifting sliding seat, lifting sliding rails are arranged on two sides of the lifting sliding plate, and the lifting sliding rails are connected with the lifting sliding block in a sliding mode.
A rotary swing table of a rotary mechanism is fixedly connected below the lifting slide seat, a bidirectional floating mechanism is arranged below the rotary swing table, and the rotary swing table is a rotary cylinder.
The bidirectional floating mechanism comprises an upper connecting plate and a lower connecting plate, the upper end of the upper connecting plate is fixedly connected with a rotary swing table, a partition plate is arranged between the upper connecting plate and the lower connecting plate, the lower part of the upper connecting plate is connected with the upper part of the partition plate through an upper sliding block, an upper sliding rail is arranged above the partition plate, the upper sliding block is connected with an upper sliding rail sliding block, an upper return tension spring is arranged in the middle of the lower end of the upper connecting plate, one end of the upper return tension spring is connected with the upper part of the partition plate, and the other end of the upper return;
the top of lower connecting plate is through lower floor's sliding rail connection baffle below, the baffle below is equipped with lower floor's slider, and lower floor's slider is connected with lower floor's sliding rail slider, is equipped with down at baffle lower extreme middle part and replies the extension spring, reply extension spring one end down and be connected with the below of baffle, reply the top of extension spring other end fixed connection lower connecting plate down.
The detection mechanism comprises a detection vertical plate which is fixed at two sides below the lower connecting plate, a mounting disc is fixedly connected below the detection vertical plate, detection mounting holes are arranged at two sides of the mounting disc, a detection slide rail is arranged at the upper end of the mounting disc, the two ends of the detection slide rail are provided with detection rods which are symmetrically arranged, the detection rods pass through the detection mounting holes, the detection rod is connected with the detection slide rail through a detection slide block, the detection slide block comprises a front slide block and a rear slide block, a detection cylinder is arranged above the detection slide block and pushes the detection slide block to move relatively, the working end of the detection cylinder is fixedly connected with the rear sliding block, the other end of the detection cylinder is fixedly connected with the front sliding block, the detection sensor is also arranged on the detection sliding block, the detection sensor is fixed at the upper end of the rear sliding block, and the front sliding block is provided with a stop block matched with the detection sensor for use.
The detection rod consists of an upper detection rod provided with an upper contact and a lower detection rod provided with a lower contact;
the front sliding block and the rear sliding block respectively comprise a left sliding block and a right sliding block, the detection sensor comprises a left sensor and a right sensor, the upper contact is fixedly connected with the right sliding block through the upper detection rod, the lower contact is fixedly connected with the left sliding block through the lower detection rod, the left sensor is arranged at the upper end of the left sliding block, and the right sensor is arranged at the upper end of the right sliding block;
the detection cylinder comprises a left cylinder and a right cylinder, the left cylinder is arranged above the left sliding block, and the right cylinder is arranged above the right cylinder.
The middle part of the mounting disc is also provided with a mounting centering hole matched with the centering mechanism for use, the centering mechanism comprises a centering cylinder, a centering cushion block and a centering sleeve, the lower end of the centering cylinder is provided with the centering cushion block, the centering cushion block is fixedly arranged above the mounting centering hole, the centering sleeve is fixedly arranged below the mounting centering hole, the lower end of the centering sleeve is provided with a plurality of positioning pin shafts, the number of the positioning pin shafts is at least three, the lower end of the centering sleeve is provided with positioning pin holes matched with the positioning pin shafts for use, the positioning pin shafts are uniformly distributed below the centering sleeve and are alternately connected with the positioning pin holes, the positioning pin shafts are provided with positioning pins, the positioning pins are connected with the centering sleeve through positioning springs, the lower end of the centering sleeve is also provided with positioning long holes matched with the positioning pins for use, the working end of the centering cylinder is fixedly connected with a jacking block, and the downward end face of the jacking, the jacking block is matched with the positioning pin shaft through the rotating roller for use, a centering contact is arranged at one end, away from the jacking block, of the positioning pin shaft, the other end of the positioning pin shaft is hinged with the rotating roller, and a shield is arranged on the periphery of the mounting disc.
And at least three positioning pin shafts are arranged.
An automatic wheel measuring machine is provided, which applies the centering measuring mechanism.
Compared with the prior art, the wheel can be lifted by the lifting mechanism, so that the wheel is separated from the carrier roller conveyor, the wheel is centered by the centering mechanism, and finally the wheel is automatically detected by the centering measuring mechanism, so that the wheel centering device is high in detection precision and suitable for wheels of different specifications.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic structural view of a centering measurement mechanism.
Fig. 4 is a schematic structural view of the detection mechanism.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a schematic structural view of the centering mechanism.
Fig. 7 is a top view of the centering mechanism.
Fig. 8 is a schematic structural view of the bidirectional floating mechanism.
Fig. 9 is a top view of a centering structure.
Fig. 10 is a cross-sectional view of the centering structure.
Fig. 11 is a schematic structural view of the elevating mechanism.
Fig. 12 is a schematic structural view of the alignment mechanism.
Fig. 13 is a perspective view of a centering measurement mechanism.
Fig. 14 is a schematic view of the installation of the centering mechanism and the detecting mechanism.
Wherein, 1, a gantry frame, 101, a cross beam, 102, a base, 103, a vertical column, 2, a centering measuring mechanism, 201, a lifting cylinder, 202, a lifting sliding plate, 203, a lifting sliding seat, 204, a bidirectional floating mechanism, 2040, an upper connecting plate, 2041, a clapboard, 2042, a lower connecting plate, 2043, an upper slider, 2044, an upper sliding rail, 2045, an upper return tension spring, 2046, a lower return tension spring, 2047, a lower sliding rail, 2048, a lower slider, 205, a detecting mechanism, 2051, a detecting vertical plate, 2052, a detecting sliding rail, 2053, a mounting disc, 2054, an upper contact, 2055, a lower contact, 2056, a detecting cylinder, 2057, a right sensor, 2058, a left sensor, 2059, a left slider, 2060, a right slider, 2061, a front slider, 2063, a rear slider, 2064, a centering sleeve, 2065, a positioning pin, a 2066, a positioning spring, a 2067, a jacking block, a jacking pin, a 2079, a centering pin, a positioning block and a centering contact, 2071. the device comprises a mounting centering hole, 2072 rotating rollers, 2073 centering cylinders, 206 centering mechanisms, 207 shields, 3 lifting mechanisms, 301 guide rail mounting seats, 302 cylinder seats, 303 lifting cylinders, 304 bracket supporting seats, 305 slider mounting seats, 306 lifting brackets, 307 riding wheel supporting seats, 308 calibration cylinders, 309 guide rail fixing seats, 310 calibration pieces, 4 centering mechanisms, 401 centering supports, 402 left centering blocks, 403 right centering blocks, 404 left rotating screws, 405 left centering nuts, 406 right centering nuts, 407 right rotating screws, 408 middle shafts, 409 transmission gears, 5 idler conveyors and A represents a wheel.
Detailed Description
As shown in the attached figures 1 to 14, an automatic wheel measuring machine comprises a gantry frame 1 provided with a beam 101 at the upper part and a base 102 at the bottom, and a carrier roller conveyor 5 arranged above the base 102, wherein a lifting mechanism 3 for lifting wheels is arranged below the carrier roller conveyor 5, the lifting mechanism 3 is fixed in the middle of the base 102, a centering mechanism 4 for centering and positioning the wheels is arranged in the middle of the gantry frame 1, the lifting mechanism 3 is arranged below the centering mechanism 4, the lower end of the lifting mechanism 3 is fixedly connected with the base 102, a centering measuring mechanism 2 is arranged above the centering mechanism 4, the centering measuring mechanism 2 is fixedly connected with the beam 101 of the gantry frame 1, the gantry frame further comprises two side upright posts 103, the upright posts 103 are connected with the beam 101 at the upper part and the base 102 at the lower part, the carrier roller conveyor 5 is the prior art and is used for conveying the wheels, so that the wheels are automatically conveyed above the lifting mechanism 3, the wheels are lifted to the centering mechanism 4 through the lifting mechanism 3, so that the wheels are separated from the roller conveyor, and it is worth noting that when the lifting mechanism 3 works, the roller conveyor 5 stops, the wheels are adjusted in position through the centering mechanism 4, and finally the size in the wheels is detected through the centering measuring mechanism 2, so that full-automatic detection is realized, the detection precision is high, and the device is suitable for wheels of different specifications.
The lifting mechanism 3 comprises a guide rail mounting seat 301 and a lifting oil cylinder 303, the guide rail mounting seat 301 is mounted at two sides of the lifting oil cylinder 303, a bracket supporting seat 304 is connected at the working end of the lifting oil cylinder 303, a lifting bracket 306 is fixedly connected at the upper end of the bracket supporting seat 304, slider mounting seats 305 are arranged at two sides of the lifting bracket 306, the slider mounting seats 305 are slidably connected with the guide rail mounting seat 301, a lifting slide rail is arranged on the guide rail mounting seat 301, the slider mounting seats 305 are connected with the lifting slide rail of the guide rail mounting seat 301 through guide rail sliders, riding wheel supporting seats 307 for jacking wheels are arranged at two sides above the bracket supporting seat 304, the lower end of the guide rail mounting seat 301 is fixedly connected with the base 102, the lower end of the lifting oil cylinder 303 is connected with the base 102 through the oil cylinder seat 302, the lifting oil cylinder 303 is hinged with the oil cylinder seat 302, and the thickness of the riding, the riding wheel support 307 is inserted and connected with the riding wheel conveyor 5, when the riding wheel conveyor 5 conveys wheels to the upper part of the lifting mechanism 3, the work is stopped, the lifting oil cylinder 303 is started, the bracket support base 304 is pushed by the working end of the lifting oil cylinder 303 to push the lifting bracket 306 to move upwards, the slide block mounting bases 305 on the two sides of the lifting bracket 306 slide along the guide rail mounting base 301, the riding wheel support 307 above the lifting bracket 306 jacks up the wheels, the wheels are separated from the riding wheel conveyor 5, and the wheels enter the centering mechanism 4 under the pushing of the riding wheel support 307.
The calibration mechanism is arranged between the supporting roller supports 307 and comprises a calibration cylinder 308, the calibration cylinder 308 is arranged in the bracket supporting seat 304, the working end of the calibration cylinder 308 extends above the lifting bracket 306, guide rail fixing seats 309 are arranged on two sides of the calibration cylinder 308, a calibration guide rail is arranged on the guide rail fixing seats 309, a calibration piece 310 is fixedly connected to the working end of the calibration cylinder 308, the calibration piece 310 is connected with the calibration guide rail in a sliding mode through a sliding block connecting seat, the middle part of a wheel is jacked up by the calibration piece 310, the calibration piece 310 is pushed through the calibration cylinder 308, the guide rail fixing seats 309 on two sides of the calibration piece 310 move along the calibration guide rail, a cylinder body of the calibration cylinder 308 is arranged in the bracket supporting seat 304, and the working end of the calibration cylinder 308 extends.
The centering mechanism 4 comprises a left centering device and a right centering device which are symmetrically arranged, and a centering bracket 401 fixed in the middle of the gantry frame 1, the left centering device and the right centering device are arranged above the centering bracket 401,
the left centering device comprises a left centering block 402, the left centering block 402 is connected with a centering support 401 through a left centering guide rail in a sliding mode, a left centering nut 405 is arranged below the left centering block 402, the left centering nut 405 is fixedly connected with the left centering block 402, the left centering nut 405 is connected with a left screw 404 through threads, two ends of the left screw 404 are hinged to the lower end of the centering support 401, one end, far away from the left centering block 402, of the left screw 404 is fixedly connected with a hydraulic motor through a coupler, and the hydraulic motor is fixedly connected with the centering support 401;
the right centering device comprises a right centering block 403, the right centering block 403 is connected with the centering support 401 through a right centering guide rail in a sliding mode, a right centering nut 406 is arranged below the right centering block 403, the right centering nut 406 is fixedly connected with the right and left centering blocks 402, the right centering nut 406 is connected with a right-handed screw 407 through threads, and two ends of the right-handed screw 407 are hinged to the lower end of the centering support 401;
the left-handed screw 404 and the right-handed screw 407 are connected through an intermediate shaft 408, transmission gears 409 are arranged at two ends of the intermediate shaft 408, the intermediate shaft 408 is in gear connection with the left-handed screw 404 and the right-handed screw 407 through the transmission gears 409, the intermediate shaft 408 is hinged on one side below the centering bracket 401, both the left centering block 402 and the right centering block 403 are V-shaped blocks, when a wheel is lifted between the left centering block 402 and the right centering block 403 by the riding wheel support 307, the lifting oil cylinder 303 stops working, a hydraulic motor of the centering mechanism 4 starts working, the hydraulic motor is connected with the left-handed screw through a coupling, the left-handed screw 404 rotates to drive the left centering nut 405, because the left centering nut 405 is fixedly connected with the left centering block 402, the left centering block 402 is connected with the bracket through a centering slide rail, namely the left-handed screw 404 and the left centering nut 405 are in a ball screw pair structure, namely the left-handed screw 404, namely, the left centering block 402 is driven to move rightwards, the left screw 404 is connected with the right screw 407 through the intermediate shaft 408, two ends of the intermediate shaft 408 are connected with the left screw 404 and the right screw 407 through gears, namely, when the left screw 404 rotates, the right screw 407 is driven to synchronously rotate, the right screw 407 and the right centering nut 406 form a ball screw pair structure, the right screw 407 drives the right centering block 403 to move leftwards, and the hydraulic motor synchronously drives the left centering block 402 and the right centering block 403 to do relative motion, so that the left centering block 402 and the right centering block 403 clamp wheels, and the wheels are in the middle of the centering mechanism 4.
The centering measurement mechanism 2 comprises a moving mechanism, a rotating mechanism, a centering mechanism 206 and a detection mechanism 205, wherein the rotating mechanism, the centering mechanism 206 and the detection mechanism 205 are all arranged on a lifting sliding plate 202 of the moving mechanism, the moving mechanism drives the rotating mechanism, the centering mechanism 206 and the detection mechanism 205 to move up and down, the rotating mechanism drives the centering mechanism 206 and the detection mechanism 205 to rotate, and the centering mechanism 206 and the detection mechanism 205 are matched to detect the inner diameter of the wheel.
The moving mechanism comprises a lifting cylinder 201 and a lifting sliding plate 202 which are used for controlling lifting, the lifting cylinder 201 and the lifting sliding plate 202 are fixed in the middle of the gantry frame 1, the lifting cylinder 201 is connected with the lifting sliding plate 202 in a sliding mode through a lifting sliding seat 203, a lifting sliding block is arranged below the lifting sliding seat 203, lifting sliding rails are arranged on two sides of the lifting sliding plate 202, and the lifting sliding rails are connected with the lifting sliding blocks in a sliding mode;
a rotary swing table of a rotary mechanism is fixedly connected below the lifting slide seat 203, the rotary swing table is a rotary air cylinder, and a bidirectional floating mechanism 204 is arranged below the rotary swing table;
the bidirectional floating mechanism 204 comprises an upper connecting plate 2040 and a lower connecting plate 2042, the upper end of the upper connecting plate 2040 is fixedly connected with a rotary swing table, a partition plate 2041 is arranged between the upper connecting plate 2040 and the lower connecting plate 2042, the lower part of the upper connecting plate 2040 is connected with the upper part of the partition plate 2041 through an upper sliding block 2043, an upper sliding rail 2044 is arranged above the partition plate 2041, the upper sliding block 2043 is connected with the upper sliding rail 2044 in a sliding block manner, an upper return tension spring 2045 is arranged in the middle of the lower end of the upper connecting plate 2040, one end of the upper return tension spring 2045 is connected with the upper part of the partition plate 2041, and the other end of the upper return tension spring 204;
The detection mechanism 205 comprises a detection vertical plate 2051, the detection vertical plate 2051 is fixed on two sides below a lower connecting plate 2042, a mounting plate 2053 is fixedly connected below the detection vertical plate 2051, detection mounting holes are arranged on two sides of the mounting plate 2053, a detection slide rail 2052 is arranged at the upper end of the mounting plate 2053, detection rods are symmetrically arranged at two ends of the detection slide rail 2052, the detection rods are inserted and connected with the detection mounting holes, the detection rods are connected with the detection slide rail 2052 through detection slide blocks, each detection slide block comprises a front slide block 2062 and a rear slide block 2063, a detection cylinder 2056 is arranged above each detection slide block, the detection cylinder 2056 pushes the detection slide blocks to move relatively, the working end of the detection cylinder 2056 is fixedly connected with the rear slide block 2063, the other end of the detection cylinder 2056 is fixedly connected with the front slide block 2062, a detection sensor is further arranged on each detection slide block, and the detection, a stopper 2061 used in cooperation with the detection sensor is provided on the front slider 2062;
the detection rod consists of an upper detection rod provided with an upper contact 2054 and a lower detection rod provided with a lower contact 2055; the front slider 2062 and the rear slider 2063 have the same structure, the front slider 2062 and the rear slider 2063 both comprise a left slider 2059 and a right slider 2060, the detection sensor comprises a left sensor 2058 and a right sensor 2057, an upper contact 2054 is fixedly connected with the right slider 2060 through an upper detection rod, a lower contact 2055 is fixedly connected with the left slider 2059 through a lower detection rod, the left sensor 2058 is arranged at the upper end of the left slider 2059, and the right sensor 2057 is arranged at the upper end of the right slider 2060;
the detection cylinder 2056 comprises a left cylinder and a right cylinder, the left cylinder is arranged above the left slider 2059, the right cylinder is arranged above the right slider 2060, the cylinder body of the left cylinder is fixed on one left slider 2059, the working end of the left cylinder is fixed on the other left slider 2059, the two left sliders 2059 are synchronously moved through the left cylinder, and the principle of the right cylinder is the same as that of the left cylinder.
The middle of the mounting disc 2053 is further provided with a mounting centering hole 2071 matched with the centering mechanism 206 for use, the centering mechanism 206 comprises a centering cylinder 2073, a centering cushion 2070 and a centering sleeve 2064, the lower end of the centering cylinder 2073 is provided with the centering cushion 2070, the centering cushion 2070 is fixedly arranged above the mounting centering hole 2071, the centering sleeve 2064 is fixedly arranged below the mounting centering hole 2071, the centering sleeve 2064 is fixedly connected with the centering cushion 2070, the lower end of the centering sleeve 2064 is provided with a plurality of positioning pins 2068, at least three positioning pins 2068 are arranged, the lower end of the centering sleeve 2064 is provided with positioning pins 2065 matched with the positioning pins 2068, the positioning pins 2068 are uniformly arranged below the centering sleeve 2064, the positioning pins 2068 are alternately connected with the positioning pins 2065, the positioning pins 2065 are arranged on the positioning pins 2068, the positioning pins 2065 are connected with the centering sleeve 2064 through positioning springs 2066, the lower end of the centering sleeve 4 is further provided with positioning pins matched with the positioning holes used for use, the working end of the centering cylinder 2073 is fixedly connected with a jacking block 2067, the end face of the jacking block 2067 from top to bottom is gradually reduced, the jacking block 2067 is matched with a positioning pin 2068 through a rotating roller 2072 for use, one end of the positioning pin 2068 far away from the jacking block 2067 is provided with a centering contact 2069, the other end of the positioning pin 2068 is hinged with the rotating roller 2072, the periphery of the mounting disc 2053 is provided with a shield 207, after the centering mechanism 4 centers and clamps the wheel, the lifting cylinder 201 of the centering measuring mechanism 2 starts to work, the lifting cylinder 201 pushes the lifting slide carriage 203 to move along the lifting slide plate 202, and then the rotating mechanism, the centering mechanism 206 and the detecting mechanism 205 are integrally moved downwards, so that the shield 207 of the detecting mechanism 205 is inserted into the inner diameter of the middle part of the wheel, the centering cylinder 2073 of the centering mechanism 206 is started, the centering cylinder 2073 pushes the jacking block 2067 downwards, the jacking block 2067 props against the positioning pin 2068, and enables the positioning pin 2068 to move, until the centering contacts 2069 at the outer end of the positioning pin 2068 completely push against the inner wall of the wheel, it is worth noting that the extending amount of the positioning pin 2068 is the same, when the center of the centering mechanism 206 does not coincide with the inner diameter center of the wheel, when the positioning pin 2068 of the centering mechanism 206 extends and contracts, the centering cannot be performed due to asynchronous contact with the inner wall of the wheel, at this time, the bidirectional floating mechanism 204 starts to work, the lower connecting plate 2042 and the partition plate 2041 of the bidirectional floating mechanism 204 can work passively, the passive work is to receive the reaction force of the positioning pin 2068 and the inner wall of the wheel, under the action of the reaction force, the lower connecting plate 2042 and the partition plate 2041 move forwards, backwards, leftwards and rightwards until the center of the centering mechanism 206 completely coincides with the wheel mechanism, the centering mechanism 206 and the detection mechanism 205 are driven to move, thereby avoiding measurement errors, improving the precision, and after the centering mechanism 206 and the wheel are centered, the detection, the detection cylinder 2056 works to push the front slide block 2062 and the rear slide block 2063 of the detection slide block to move relatively, the front slide block 2062 and the rear slide block 2063 are gradually far away, namely the detection cylinder 2056 pushes the left slide block 2059 and the right slide block 2060 to move simultaneously, the left slide block 2059 and the right slide block 2060 move along the detection slide rail 2052, the left slide block 2059 drives the lower contact 2055 fixedly connected with the left slide block 2059 to move outwards, the right slide block 2060 drives the upper contact 2054 fixedly connected with the right slide block 2050 to move outwards, namely move out of the shield 207 until the upper contact 2054 and the lower contact 2055 at the two ends contact the inner wall of the wheel, the upper contact 2054 always pushes against the inner wall of the wheel under the action of the right cylinder, the right sensor detects the distance between the right sensor and the stop block 2061, the information is transmitted to an external control system, the control system calculates the diameter of the inner upper end surface of the wheel, the lower contact 2055 always pushes against the inner wall of, the information is transmitted to an external control system, the control system calculates the diameter of the inner lower end face of the wheel, the time required by the process is about 3 or 4 seconds, the thrust of the detection cylinder is a fixed value, the thrust is small, the upper detection rod and the lower detection rod cannot be damaged, the distance between the upper contact 2054 and the lower contact 2055 at two ends is a fixed value at the beginning, the distance between the detection sensor and the stop 2061 is a fixed value, the moving distance between the upper contact 2054 and the lower contact 2055 is 2 times of the moving distance between the detection sensor and the stop 2061, the diameter in the wheel can be calculated, then the cylinder is rotated by 90 degrees, the upper contact 2054 and the lower contact 2055 measure the diameter in the vertical direction, the external control system is the prior art, the detailed description is not provided in the specification, such as a PLC (programmable logic controller) and the like, and the detection sensor, the left sensor 2058 and the right sensor 2057 are displacement sensors, the upper contact 2054 and the lower contact 2055 are made of bearing steel.
And a pneumatic assembly box and an electric assembly box are arranged on two sides of the gantry frame 1 and are connected with the carrier roller conveyor 5, the lifting mechanism 3, the centering mechanism 4 and the centering measuring mechanism 2.
The working process of the invention is as follows: when the carrier roller conveyor 5 conveys the wheels to the upper part of the lifting mechanism 3, the work is stopped, the lifting oil cylinder 303 is started, the working end of the lifting oil cylinder 303 pushes the bracket supporting seat 304 to push the lifting bracket 306 to move upwards, the slide block mounting seats 305 on the two sides of the lifting bracket 306 slide along the guide rail mounting seats 301, the carrier roller support 307 above the lifting bracket 306 jacks up the wheels, so that the wheels are separated from the carrier roller conveyor 5, the wheels enter the centering mechanism 4 under the pushing of the carrier roller support 307, when the wheels are lifted between the left centering block 402 and the right centering block 403 by the carrier roller support 307, the lifting oil cylinder 303 stops working, the hydraulic motor of the centering mechanism 4 starts working, the hydraulic motor is connected with a left-handed screw rod through a coupler, the left-handed screw rod 404 rotates to drive a left centering nut 405, because the left centering nut 405 is fixedly connected with the left centering block 402, the left centering block 402 is connected with a support through a centering, namely, the left-handed screw 404 and the left-handed screw 405 are of a ball screw pair structure, that is, the left-handed screw 404 rotates to drive the left-handed screw 405 to move right, that is, the left-handed screw 402 moves right, the left-handed screw 404 is connected with the right-handed screw 407 through the intermediate shaft 408, two ends of the intermediate shaft 408 are connected with the left-handed screw 404 and the right-handed screw 407 through gears, that is, when the left-handed screw 404 rotates, the right-handed screw 407 is driven to rotate synchronously, the right-handed screw 407 and the right-handed screw 406 form a ball screw pair structure, the right-handed screw 407 drives the right-handed centering block 403 to move left, the hydraulic motor synchronously drives the left-handed centering block 402 and the right-handed centering block 403 to move relatively, so that the left-handed centering block 402 and the right-handed centering block 403 clamp the wheels, the wheels are in the middle of the centering mechanism 4, after the centering mechanism 4 performs centering clamping on the wheels, further, the swing mechanism, the centering mechanism 206 and the detecting mechanism 205 are integrally moved downwards, so that the shield 207 of the detecting mechanism 205 is inserted into the inner diameter of the middle part of the wheel, the centering cylinder 2073 of the centering mechanism 206 is started, the centering cylinder 2073 pushes the jacking block 2067 downwards, the jacking block 2067 jacks the positioning pin 2068, so that the positioning pin 2068 moves outwards until the centering contacts 2069 at the outer end of the positioning pin 2068 all jack the inner wall of the wheel tightly, it is noted that the extension amount of the positioning pin 2068 is the same, when the center of the centering mechanism 206 is not overlapped with the center of the inner diameter of the wheel, the positioning pin 2068 of the centering mechanism 206 is not in synchronization with the inner wall of the wheel when being in contact with the inner wall of the wheel, at this time, the bidirectional floating mechanism 204 starts to work, the lower connecting plate 2042 and the partition plate 2041 of the bidirectional floating mechanism 204 work passively, and the passive work is the reaction force of the positioning pin 2068 and the inner wall of the wheel, under the action of a reaction force, the lower connecting plate 2042 and the partition plate 2041 move forwards, backwards, leftwards and rightwards until the center of the centering mechanism 206 completely coincides with the wheel mechanism to drive the centering mechanism 206 and the detection mechanism 205 to move, so that errors caused by measurement are avoided, the precision is improved, after the centering mechanism 206 and the wheel center are centered, the detection mechanism 205 starts to work, the detection cylinder 2056 works to push the front sliding block 2062 and the rear sliding block 2063 of the detection sliding block to move relatively, the front sliding block 2062 and the rear sliding block 2063 gradually move away, namely, the detection cylinder 2056 pushes the left sliding block 2059 and the right sliding block 2060 to simultaneously move, the left sliding block 2059 and the right sliding block 2060 move along the detection sliding rail 2052, the left sliding block 2059 drives the lower contact fixedly connected with the left sliding block to move outwards, the right sliding block 2060 drives the upper contact fixedly connected with the right sliding block to move outwards, namely, the right sliding block 2060 moves out of the shield 207 until the upper contact 2054 and the, the information is transmitted to the right sensor 2057, the right sensor 2057 detects the distance between the sensor and the stop block 2061, the information is transmitted to an external control system, the control system calculates the diameter of the upper end surface in the wheel, when the lower contact contacts the inner wall of the wheel, the information is transmitted to the left sensor 2058, the left sensor 2058 detects the distance between the sensor and the stop block 2061, the information is transmitted to the external control system, and the control system calculates the diameter of the lower end surface in the wheel, because the distance between the upper contact and the lower contact at two ends is a fixed value at the beginning, the distance between the sensor and the stop block 2061 is a fixed value, and the distance between the upper contact and the lower contact is 2 times of the distance between the sensor and the stop block 2061, so that the diameter in the wheel can be calculated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114485504A (en) * | 2022-01-16 | 2022-05-13 | 贵州德科纳精密设备制造有限公司 | Engine piston detection equipment |
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| CN112362017B (en) | 2025-04-22 |
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