CN115388836B - Dynamic measurement device and measurement method for dimension of hybrid power transmission shafting - Google Patents
Dynamic measurement device and measurement method for dimension of hybrid power transmission shafting Download PDFInfo
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- CN115388836B CN115388836B CN202211343870.XA CN202211343870A CN115388836B CN 115388836 B CN115388836 B CN 115388836B CN 202211343870 A CN202211343870 A CN 202211343870A CN 115388836 B CN115388836 B CN 115388836B
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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
- G01B21/16—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 distance of clearance between spaced objects
Abstract
The invention discloses a dynamic measurement device and a measurement method for the dimension of a hybrid transmission shafting, wherein the measurement device comprises the following components: the tray is used for placing the tested semi-finished product transmission; the tray jacking mechanism is used for jacking and positioning the tray up and down; the measuring mechanism is used for dynamically measuring the shafting size of the measured semi-finished transmission; and the lifting mechanism is used for driving the measuring mechanism to move up and down. The invention provides a dynamic measurement device and a dynamic measurement method for the shafting dimension of a hybrid transmission.
Description
Technical Field
The invention relates to a dynamic measurement device and a dynamic measurement method for the dimension of a hybrid transmission shafting, belonging to measurement equipment for an automatic assembly line of a transmission.
Background
At present, a single motor or multiple motors are arranged in a transmission of a hybrid electric vehicle, the motor drives the vehicle to start, an engine drives the motor to generate power, bearings at two ends of the motor and two ends of a transmission shaft system need to measure dimensions, and proper gaskets are selected to be used for adjusting axial clearance and interference of the shaft systems before box closing, so that transmission parts and bearings in the transmission keep good working states and exert maximum benefits. In the production of the actual transmission, the sizes of all shafting and a shell need to be accurately measured, so that the gasket is more accurately selected.
The bearings of the shafting in the transmission are in a free state before the shafting is not assembled and the shafting, the shafts and the bearings have deflection conditions, particularly the conical bearings at the shaft ends, the inner and outer rings of the bearings are separated and only contacted by the free conical surfaces, the deflection of the outer rings is large, and the accurate size of the distance joint surface between the end surfaces of the bearings cannot be accurately measured by static single-point measurement and multi-point measurement.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a dynamic measurement device and a measurement method for the dimension of a hybrid transmission shafting.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a dynamic measurement device for the dimension of a hybrid power transmission shafting on one hand, which comprises:
the tray is used for placing the tested semi-finished product transmission;
the tray jacking mechanism is used for jacking and positioning the tray up and down;
the measuring mechanism is used for dynamically measuring the shafting size of the measured semi-finished transmission;
the lifting mechanism is used for driving the measuring mechanism to move up and down;
and the calibration mechanism is used for calibrating the measuring mechanism before measurement.
Further, the middle of the tray is hollow, a plurality of pin holes are formed in the tray, a roller way is arranged below the tray, and the roller way is used for transporting the tray.
The tray jacking mechanism comprises a jacking base, a jacking driving cylinder, a guide sleeve, a third guide rail and a Z-shaped support, wherein the jacking driving cylinder, the guide sleeve and the third guide rail are fixed on the jacking base, and a piston rod of the jacking driving cylinder is connected with a jacking driving plate;
a third sliding block which is matched with the third guide rail to slide is arranged at the bottom of the jacking driving plate, a bearing is arranged on the side wall of the jacking driving plate, and the bearing is matched with a Z-shaped groove on the side wall of the Z-shaped support to slide;
the guide sleeve is movably connected with a guide rod, the top of the guide rod is provided with a jacking plate, the jacking plate is connected with the Z-shaped support, and the jacking plate is provided with a positioning support rod.
Further, measuring mechanism includes the tripod and the mounting panel that links to each other with the tripod, be provided with first measuring component, second measuring component, planet axle drive assembly and a plurality of second benchmark piece on the mounting panel, the bottom of mounting panel passes through the spliced pole and links to each other with the benchmark board, the bottom of tripod is provided with the V type guide post, the cover is equipped with return spring on the V type guide post, offer the guiding hole that is used for the cover on the V type guide post on the mounting panel.
Further, first measuring subassembly includes that first gauge head drives actuating cylinder, first cylinder support, first measuring head guide pin bushing, first measuring head and first pressure sensor, first gauge head drives actuating cylinder and fixes on the mounting panel through first cylinder support, the top of first measuring head is passed through first pressure sensor and is driven the piston rod of actuating cylinder with first gauge head and link to each other, first measuring head guide pin bushing cover is established on first measuring head, first gauge head drives actuating cylinder drive first measuring head and reciprocates in first measuring head guide pin bushing, evenly distributed has three first pen type sensor on the outer wall of first measuring head guide pin bushing, first pen type sensor is used for detecting the difference of the axle head position of being surveyed semi-manufactured goods derailleur and index piece position.
Further, the second measuring assembly comprises a second measuring head driving cylinder, a second measuring head guide sleeve, a second driving cylinder guide rod, a second pressure sensor, a second driving cylinder guide sleeve, a V plate support, a second driving cylinder support and a V plate, the second measuring head driving cylinder is connected with the top of the second driving cylinder guide rod through the second pressure sensor, the bottom of the second driving cylinder guide rod is connected with the second measuring head guide sleeve, the second driving cylinder guide sleeve is fixed on the support plate, the second measuring head driving cylinder drives the second driving cylinder guide rod to move up and down in the second driving cylinder guide sleeve, the V plate is connected with the support plate through the V plate support, the second measuring head driving cylinder is fixed on the support plate through the second driving cylinder support, the second measuring head guide sleeve is sleeved on the second measuring head, the second measuring head freely moves up and down in the second measuring head guide sleeve, second pen sensors are uniformly distributed on the outer wall of the second measuring head guide sleeve, and the second sensors are used for detecting the difference between the point location of the measured semi-finished transmission and the differential mechanism.
Further, planet axle drive assembly includes step motor support, step motor, belt pulley and fork shaft, step motor passes through the step motor support to be fixed on the mounting panel, step motor's motor shaft passes through the belt and is connected with belt pulley transmission, the belt pulley passes through the belt pulley fixing base and is connected with the mounting panel, the belt pulley links to each other with the fork shaft through the pivot, pivot and fork shaft all are located the second measuring head.
Further, elevating system includes servo motor, lead screw and first slider, servo motor fixes at the top of frame, the lead screw links to each other with servo motor's motor shaft, be provided with on the tripod with lead screw threaded connection's nut, two first slider sets up respectively in the both sides of tripod, be provided with in the frame with the gliding first guide rail of first slider cooperation.
Further, calibration mechanism includes calibration board, calibration board slip table, calibration board support, marks and drives actuating cylinder, second slider and second guide rail, calibration board slip table drives actuating cylinder with the calibration and fixes on calibration board support, the second guide rail sets up on calibration board slip table, the bottom of calibration board is provided with the gliding second slider with second guide rail cooperation, the piston rod that the calibration drove actuating cylinder links to each other with the calibration board, the calibration drives actuating cylinder and drives the calibration board back-and-forth movement on calibration board slip table.
The invention provides a measuring method of a dynamic measuring device for the dimension of a hybrid transmission shafting, which comprises the following steps:
s1, before measurement, a measurement mechanism needs to be calibrated through a calibration mechanism, and after calibration is finished, the calibration mechanism returns to the original position;
s2, the measured semi-finished product transmission enters a measuring device, and a lifting mechanism drives a measuring mechanism to move downwards so that the measuring mechanism is in contact with the measured semi-finished product transmission for measurement;
and S3, calculating to obtain the actual size of the joint surface of the clutch shell from the end surface of the differential assembly bearing of the tested semi-finished transmission, the actual size of the joint surface of the clutch shell from the end surface of the output shaft assembly bearing of the tested semi-finished transmission and the actual size of the joint surface of the clutch shell from the end surface of the motor rotor assembly bearing of the tested semi-finished transmission.
By adopting the technical scheme, the invention is provided with the bearing retaining mechanism to prevent the shaft from deflecting; a shafting pressing mechanism is arranged for applying a certain pretightening force to the shaft end, and the system monitors the pressing force and simulates the stress state of the shaft end in the working state of the transmission; meanwhile, a stepping motor on the measuring mechanism can drive the differential mechanism to drive the plurality of measured shaft systems to rotate together, the rotating working state of the transmission is simulated, and 3 measuring sensors are arranged at the end part of each bearing to dynamically measure the size of the joint surface between the end surface of the bearing and the clutch shell. The system has high automation degree and simple and convenient operation, maximally simulates the working state of the transmission and dynamically measures the size, reduces the error of static measurement, improves the product quality and reduces the product failure rate.
Drawings
FIG. 1 is a schematic representation of a tested state of a tested semi-finished transmission of the present invention;
FIG. 2 is a schematic diagram of the overall assembly structure of the dynamic measurement device for the dimension of the shafting of the hybrid power transmission;
FIG. 3 is a schematic structural view of the tray of the present invention;
FIG. 4 is a schematic structural diagram of the calibration mechanism of the present invention;
FIG. 5 is a schematic structural view of a calibration plate of the present invention;
FIG. 6 is a schematic view of the overall structure of the tray jacking mechanism of the present invention;
FIG. 7 is a right side view of FIG. 6;
FIG. 8 is a front view of FIG. 6;
FIG. 9 is a schematic view of the overall construction of the measuring mechanism of the present invention;
FIG. 10 is a schematic structural view of a tripod according to the present invention;
FIG. 11 is a partial schematic view of the measurement mechanism of the present invention;
FIG. 12 is a bottom view of the measuring mechanism of the present invention;
FIG. 13 is a schematic structural view of a first measurement assembly of the present invention;
FIG. 14 is a schematic view of the mounting of the second measurement assembly and the planet axle drive assembly of the present invention;
FIG. 15 is a schematic structural view of a second measurement assembly and planet axle drive assembly of the present invention;
FIG. 16 is a schematic structural view of the planet axle drive assembly of the present invention;
fig. 17 is a schematic diagram of the electrical cabinet and the installation of a touch screen computer according to the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example one
As shown in fig. 2 and 9, the present embodiment provides a dynamic measurement apparatus for a shafting dimension of a hybrid transmission, which includes a frame 9, and a tray jacking mechanism, a measurement mechanism, a lifting mechanism, a calibration mechanism, a roller way 10 and a tray 5 which are mounted on the frame 9.
The tray 5 is used for placing the semi-finished transmission to be tested;
the tray jacking mechanism is used for moving the tray 5 up and down;
the measuring mechanism is used for dynamically measuring the shafting size of the measured semi-finished transmission;
the lifting mechanism is used for driving the measuring mechanism to move up and down;
the calibration mechanism is used for calibrating the measuring mechanism before measurement.
As shown in fig. 17, a touch screen computer 6 and an electrical cabinet 8 are further installed on the rack 9, the touch screen computer 6 is used for displaying detected parameters and touch operations, and the electrical cabinet 8 is used for installing an electrical device.
As shown in fig. 3, the tray 5 of the present embodiment has a hollow middle portion, the tray 5 is provided with a plurality of pin holes, a roller table 10 is disposed below the tray 5, and the roller table 10 is used for transporting the tray 5.
As shown in fig. 6, 7 and 8, the tray jacking mechanism of the present embodiment includes a jacking base 13, a jacking driving cylinder 26, a guide sleeve 29, a third guide rail 35 and a Z-shaped bracket 36, the jacking driving cylinder 26, the guide sleeve 29 and the third guide rail 35 are fixed on the jacking base 13, a jacking driving plate 31 is connected to a piston rod of the jacking driving cylinder 26, and the jacking driving cylinder 26 can push the jacking driving plate 31 to move back and forth.
A third sliding block 34 which is matched with the third guide rail 35 to slide is arranged at the bottom of the jacking drive plate 31, 4 bearings 311 are arranged on the side wall of the jacking drive plate 31, and the bearings 311 are matched with the Z-shaped grooves on the side wall of the Z-shaped support 36 to slide;
swing joint has guide bar 30 in the uide bushing 29, the top of guide bar 30 is provided with jacking board 27, jacking board 27 links to each other with Z word support 36, be provided with location bracing piece 28 on jacking board 27, the jacking drives actuating cylinder 26 drive jacking drive plate 31 back-and-forth movement, make Z word support 36 reciprocate under the cooperation of bearing 311 and Z-shaped groove, thereby drive jacking board 27 and location bracing piece 28 and reciprocate, the last round pin at location bracing piece 28 top inserts the pinhole of tray 5 and fixes a position tray 5, location bracing piece 28 is with the jacking of tray 5 simultaneously.
Because the product dead weight of the semi-manufactured goods gearbox of quilt survey is heavier, in addition the additional increase weight of measuring mechanism back of pushing down, if adopt conventional perpendicular cylinder or screw-nut pair to carry out the jacking, then can cause the cylinder thrust not enough, also can't guarantee the equilibrium of jacking. Therefore, this embodiment has adopted the jacking of level setting to drive actuating cylinder 26, and the cooperation linkage of rethread jacking drive plate 31, bearing 311, Z word support 36 realizes the jacking at the jacking drive actuating cylinder 26 horizontal driving's in-process, gives the sufficient jacking force of the semi-manufactured goods gearbox of being surveyed, and stability is also higher.
As shown in fig. 9, 10, 11, and 12, the measuring mechanism of this embodiment includes a tripod 11 and a support plate 38 connected to the tripod 11, the support plate 38 is provided with a first measuring component, a second measuring component, a planet shaft driving component, and a plurality of second reference blocks 49, the bottom of the support plate 38 is connected to a reference plate 39 through a connecting column 40, the bottom of the tripod 11 is provided with a V-shaped guide column 43, a return spring 44 is sleeved on the V-shaped guide column 43, and a guide hole for being sleeved on the V-shaped guide column 43 is formed in the support plate 38, as shown in fig. 13, under the action of the self weight of each component on the support plate 38 and the return spring 44 in a free state, a V surface of the guide hole on the support plate 38 is attached to a V surface at the bottom of the V-shaped guide column 43 for positioning the support plate 38.
As shown in fig. 13, the first measuring assembly includes a first measuring head driving cylinder 45, a first cylinder support 51, a first measuring head guide sleeve 50, a first measuring head 46 and a first pressure sensor 65, the first measuring head driving cylinder 45 is fixed on the support plate 38 through the first cylinder support 51, the top of the first measuring head 46 is connected with the piston rod of the first measuring head driving cylinder 45 through the first pressure sensor 65, the first measuring head guide sleeve 50 is sleeved on the first measuring head 46, the first measuring head driving cylinder 45 drives the first measuring head 46 to move up and down in the first measuring head guide sleeve 50, three first pen sensors 52 are uniformly distributed on the outer wall of the first measuring head guide sleeve 50, and the first pen sensors 52 are used for detecting the difference between the shaft end position of the measured semi-finished transmission and the point position.
As shown in fig. 14 and 15, the second measuring assembly includes a second measuring head driving cylinder 48, a second measuring head 47, a second measuring head guide sleeve 56, a second driving cylinder guide rod 58, a second pressure sensor 66, a second driving cylinder guide sleeve 57, a V plate support column 62, a second driving cylinder support column 63 and a V plate 64, the second measuring head driving cylinder 48 is connected to the top of the second driving cylinder guide rod 58 through the second pressure sensor 66, the bottom of the second driving cylinder guide rod 58 is connected to the second measuring head guide sleeve 56, the second driving cylinder guide sleeve 57 is fixed to the support plate 38, the second measuring head driving cylinder 48 drives the second driving cylinder guide rod 58 to move up and down in the second driving cylinder guide sleeve 57, the V plate 64 is connected to the support plate 38 through the V plate support column 62, the second measuring head driving cylinder 48 is fixed to the support plate 38 through the second driving cylinder support column 63, the second measuring head 56 is sleeved to the second measuring head guide sleeve 47, the second measuring head 47 freely moves up and down in the second measuring head guide sleeve 56, the outer wall of the second measuring head guide sleeve 56 is uniformly distributed with the second measuring head 55, and the differential point position of the differential speed changer.
As shown in fig. 16, the planetary shaft driving assembly includes a step motor bracket 53, a step motor 37, a belt 54, a belt pulley 59 and a fork shaft 61, the step motor 37 is fixed on the bracket plate 38 through the step motor bracket 53, a motor shaft of the step motor 37 is in transmission connection with the belt pulley 59 through the belt 54, the belt pulley 59 is connected with the bracket plate 38 through a belt pulley fixing seat 60, the belt pulley 59 is connected with the fork shaft 61 through a rotating shaft, and the rotating shaft and the fork shaft 61 are both located in the second measuring head 47. The stepping motor 37 drives the belt 54, the belt pulley 59 and the fork shaft 61 to rotate, and the fork shaft 61 is forked on a planetary shaft in the semi-finished product transmission to drive the differential and other shaft assemblies to rotate.
As shown in fig. 14, 15 and 16, after the second probe driving cylinder 48 is ventilated, the second pressure sensor 66 is driven, the second probe 47 and the second probe guide sleeve 56 are driven to move down integrally, and after the second probe 47 is in contact with the semi-finished transmission to be tested, the second probe 47 fluctuates up and down along with the semi-finished transmission to enable the second pen sensor 55 to output a numerical value.
The measuring mechanism further comprises clamping assemblies, the two groups of clamping assemblies are respectively arranged on two sides of the support plate 38, each clamping assembly comprises a clamping cylinder 41 and a clamping plate 42, the clamping plates 42 are fixed on piston rods of the clamping cylinders 41, and the clamping cylinders 41 drive the clamping plates 42 to clamp or loosen the measured semi-finished transmission.
As shown in fig. 2, the lifting mechanism of this embodiment includes a servo motor 12, a lead screw 18 and first sliding blocks 16, the servo motor 12 is fixed on the top of the frame 9, the lead screw 18 is connected with a motor shaft of the servo motor 12, a nut in threaded connection with the lead screw 18 is arranged on the tripod 11, the two first sliding blocks 16 are respectively arranged on two sides of the tripod 11, and the frame 9 is provided with first guide rails 17 which are matched with the first sliding blocks 16 to slide. During detection, the screw 18 can be driven by the servo motor 12 to drive the tripod 11 to move up and down, and the tripod is mechanically limited when moving down to the limiting block 15.
As shown in fig. 4, the calibration mechanism of this embodiment includes a calibration plate 19, a calibration plate sliding table 14, a calibration plate support 24, a calibration driving cylinder 25, a second slider 32 and a second guide rail 33, where the calibration plate sliding table 14 and the calibration driving cylinder 25 are fixed on the calibration plate support 24, the second guide rail 33 is disposed on the calibration plate sliding table 14, the bottom of the calibration plate 19 is provided with the second slider 32 that slides in cooperation with the second guide rail 33, a piston rod of the calibration driving cylinder 25 is connected to the calibration plate 19, and the calibration driving cylinder 25 drives the calibration plate 19 to move back and forth on the calibration plate sliding table 14;
as shown in fig. 5, the calibration plate 19 is provided with a first reference block 20, a differential calibration block 21, a motor rotor calibration block 22, and an output shaft calibration block 23. Each calibration piece on the calibration plate 19 is fine machining and calibrated through measurement, 4 first reference blocks 20 of calibration form a reference surface, the size of the end face of a differential calibration block 21 from the reference surface is 100.002mm, the size of the end face of a motor rotor calibration block 22 from the reference surface is 135.001 mm, the size of the end face of an output shaft calibration block 23 from the reference surface is 135.002 mm, and the three sizes are standard values and have errors within +/-0.0002 mm.
The first pen sensor 52 and the second pen sensor 55 are precision sensors, the sensors can generate 0-99999 point digits after being compressed, and parameters are set on the touch screen computer 6: every 10 dots represents 0.001mm.
The working principle of the invention is as follows:
as shown in fig. 8 and 9, before the measurement starts, the driving cylinder 25 can drive the calibration plate 19 to move forward, the positions of the differential calibration block 21, the motor rotor calibration block 22 and the output shaft calibration block 23 on the plate are opposite to the two first measurement heads 46 and the second measurement head 47 on the measurement mechanism, the lifting mechanism drives the measurement mechanism to move down and press on the corresponding calibration block to calibrate the measurement mechanism, and after the calibration is completed, the driving cylinder 25 can drive the calibration plate 19 to return.
As shown in fig. 10, 11 and 12, the lift-up driving cylinder 26 is ventilated to move the positioning support rod 28 up and down, the positioning support rod 28 lifts up the tray 5, and the upper pin of the positioning support rod 28 is inserted into the pin hole of the tray 5 to position the tray 5.
As shown in fig. 5, 13 and 14, in the free state, under the action of the component weight on the holder plate 38 and the return spring 44, the V-surface of the guide hole of the holder plate 38 is abutted against the V-surface of the V-shaped guide column 43 to position the holder plate 38. The lifting mechanism drives the measuring mechanism to move downwards to the measured semi-finished product transmission, at the moment, the V surface of the guide hole of the support plate 38 is separated from the V surface of the V-shaped guide column 43, and the measuring mechanism floats to adapt to the size difference of the measured piece. The clamping cylinder 41 drives the clamping plate 42 to clamp and loosen the transmission, so that the measuring mechanism is completely attached to the measured piece.
As shown in fig. 13, the first gauge head driving cylinder 45 pushes down the first pressure sensor 65 and the first gauge head 46 through the air piston rod, the first pressure sensor 65 can read the pressing force value, and the first gauge head 46 fluctuates up and down according to the size of the measured semi-finished transmission to make the first pen sensor 52 output the value.
As shown in fig. 12, 13 and 14, after the second air cylinder 48 is driven to ventilate, the second pressure sensor 66 drives the second measuring head 47 and the second measuring head guide sleeve 56 to move down integrally, and the second measuring head 47 fluctuates up and down according to the size of the measured semi-finished transmission, so that the second pen sensor 55 outputs numerical values. The stepping motor 37 drives the belt 54, the belt pulley 59 and the fork shaft 61 to rotate, and the fork shaft 61 is forked on a planetary shaft in the differential to drive the differential and other shaft assemblies to rotate.
The measurement process is as follows:
before measurement, the roller way 10 transfers the tray 5 and the measured semi-finished product transmission to the outside of the measuring equipment, the driving cylinder 25 drives the calibration plate 19 to move forwards to the measuring mechanism, the servo motor 12 drives the measuring mechanism to move downwards to press the corresponding calibration block to calibrate the measuring mechanism, and the driving cylinder 25 drives the calibration plate 19 to return after calibration is completed.
During the measurement, in the semi-manufactured goods derailleur circulation of being surveyed transferred to measuring equipment, the jacking drives actuating cylinder 26 and ventilates, makes the location bracing piece 28 shift up, and location bracing piece 28 is with the jacking of tray 5, and the round pin inserts to fix a position the tray 5 pinhole simultaneously on the location bracing piece 28. The servo motor 12 drives the measuring mechanism to move downwards to the measured semi-finished product transmission, the contact of the V surface is released, the measuring mechanism floats to adapt to the difference of a measured piece, and the clamping cylinder 41 drives the clamping plate 42 to clamp the transmission, so that the measuring mechanism is completely attached to the measured piece.
After the second driving cylinder 48 is ventilated, the second pressure sensor 66 drives the second measuring head 47 and the second measuring head guide sleeve 56 to integrally move downwards to press on the end face of the measured bearing, the stepping motor 37 drives the belt 54, the belt pulley 59 and the fork shaft 61 to rotate, the fork shaft 61 is forked on a planetary shaft in the differential to drive the differential and other shaft assemblies to rotate, and the second measuring head 47 fluctuates up and down along with the size of the measured part to enable the second pen-type sensor 55 to output numerical values. Meanwhile, the first measuring head driving cylinder 45 is provided with a ventilating piston to press the first pressure sensor 65 downwards and the first measuring head 46 downwards to press the end face of the measured bearing, the pressure sensor reads a pressing force value, the first measuring head 46 fluctuates up and down along with the measured size to enable the first pen type sensor 52 to output the value, and after the measurement is finished, the measured value and the pressing force value are displayed on the touch screen computer 6 and are transmitted to the MES system for standby.
After the measurement is finished, the clamping plate 42 is opened, the servo motor 12 drives the measuring machine to ascend and return, the jacking driving cylinder 26 returns, and the tray flow is discharged from the station to finish the measurement.
Introduction of a measured semi-finished transmission: as shown in fig. 1, the device is composed of a motor rotor assembly 1, a differential assembly 2, an output shaft assembly 3, a clutch housing 4 and other main parts, wherein the upper ends of the differential assembly 2 and the output shaft assembly 3 are provided with conical bearings, the outer rings of the conical bearings deflect when in a free state, external force is required to be pressed on the end faces of the conical bearings, the size of the end faces of the outer rings of the conical bearings from the clutch housing 4 is measured in a multipoint dynamic mode, and the device is used for accurately selecting proper adjusting gaskets before box closing to meet the pre-tightening requirements of the conical bearings.
Example two
The embodiment provides a measurement method of a dynamic measurement device for a shafting size of a hybrid transmission, which comprises the following steps:
step S1, before measurement, the measurement mechanism needs to be calibrated through a calibration mechanism, and after calibration is finished, the calibration mechanism returns to the original position:
the driving cylinder 25 drives the calibration plate 19 to move forwards, the positions of the differential calibration block 21, the motor rotor calibration block 22 and the output shaft calibration block 23 on the plate are opposite to two first measurement heads 46 and two second measurement heads 47 on the measuring machine, the servo motor 12 drives the measuring mechanism to move downwards, the 4 calibration first reference blocks 20 are in contact with the 4 second reference blocks 49 on the upper part of the measuring mechanism, and the clamping cylinder 41 drives the clamping plate 42 to clamp the calibration plate 19, so that the measuring mechanism is tightly attached to the calibration piece;
after the second measuring head driving cylinder 48 is ventilated, the second measuring head 47 and the second measuring head guide sleeve 56 are driven by the second pressure sensor 66 to integrally move downwards and press on the end surface of the differential calibration block 21, and 3 second pen sensors 55 are compressed; the first measuring head driving cylinder 45 is provided with a ventilation piston for pressing down a first pressure sensor 65 and a first measuring head 46 for pressing down the end faces of the motor rotor calibration block 22 and the output shaft calibration block 23 respectively, and two groups of 3 first pen sensors 52 are compressed;
the corresponding 3 first pen sensors 52 on the motor rotor calibration block 22 respectively display the points A1, A2 and A3, and the system automatically sets the (A1 + A2+ A3)/3 mean value points to represent 135.001 mm;
the corresponding 3 first pen sensors 52 on the output shaft calibration block 23 respectively display the points B1, B2 and B3, and the system automatically sets the (B1 + B2+ B3)/3 mean value points to represent 135.002 mm;
the corresponding 3 second pen-type sensors 55 on the differential calibration block 21 respectively display the points C1, C2 and C3, and the system automatically sets the average value of (C1 + C2+ C3)/3 to represent 100.002mm;
the first pen sensor 52 and the second pen sensor 55 indicate a negative value of-0.001 mm for every 10 points, and indicate a positive value of 0.001mm for every 10 points.
S2, the measured semi-finished transmission enters the measuring device, the lifting mechanism drives the measuring mechanism to move downwards, and the measuring mechanism is in contact with the measured semi-finished transmission to measure:
as shown in FIG. 1, the measured semi-finished transmission enters the measuring device, the servo motor 12 drives the measuring mechanism to move downwards, the 4 second reference blocks 49 are in contact with the joint surface of the clutch housing 4, and the clamping cylinder 41 drives the clamping plate 42 to clamp the clutch housing 4, so that the joint surface is attached tightly.
S3, calculating to obtain the actual size of the differential assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface, the actual size of the output shaft assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface and the actual size of the motor rotor assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface:
after the second measuring head driving cylinder 48 is ventilated, the second measuring head 47 and the second measuring head guide sleeve 56 are driven to integrally move downwards to press on the end face of the differential assembly through the second pressure sensor 66, the 3 second pen-type sensors 55 are compressed to respectively display points C4, C5 and C6, and the system automatically calculates the difference between the (C4 + C5+ C6)/3 mean point and the (C1 + C2+ C3)/3 mean point according to the following calculation formula:
100.002+0.001*[（C4+C5+C6）/3-（C1+C2+C3）/3]/10；
calculating to obtain the actual size of the joint surface between the end surface of the differential assembly bearing of the measured semi-finished transmission and the clutch housing;
similarly, the two groups of first measuring heads 46 are compressed to respectively display points A4, A5, A6 and B4, B5, B6, and the actual size of the bearing end face of the output shaft assembly of the measured semi-finished transmission from the clutch housing joint face can be obtained according to 135.002+0.001 +[ (B4 + B5+ B6)/3- (B1 + B2+ B3)/3 ]/10;
the actual size of the bearing end face of the motor rotor assembly of the measured semi-finished transmission away from the clutch housing combining face can be obtained according to 135.001+0.001 [ (A4 + A5+ A6)/3- (A1 + A2+ A3)/3 ]/10.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A dynamic measurement device for the dimension of a hybrid power transmission shafting is characterized by comprising the following components:
the tray (5) is used for placing the semi-finished transmission to be tested;
the tray jacking mechanism is used for jacking and positioning the tray (5) up and down;
the measuring mechanism is used for dynamically measuring the shafting size of the measured semi-finished transmission;
the lifting mechanism is used for driving the measuring mechanism to move up and down;
the calibration mechanism is used for calibrating the measuring mechanism before measurement;
the measuring mechanism comprises a tripod (11) and a support plate (38) connected with the tripod (11), a first measuring component, a second measuring component, a planet shaft driving component and a plurality of second reference blocks (49) are arranged on the support plate (38), the bottom of the support plate (38) is connected with a reference plate (39) through a connecting column (40), a V-shaped guide column (43) is arranged at the bottom of the tripod (11), a return spring (44) is sleeved on the V-shaped guide column (43), and a guide hole used for being sleeved on the V-shaped guide column (43) is formed in the support plate (38);
first measurement element includes that first gauge head drives actuating cylinder (45), first cylinder support (51), first measuring head guide pin bushing (50), first measuring head (46) and first pressure sensor (65), first gauge head drives actuating cylinder (45) and fixes on mounting plate (38) through first cylinder support (51), the top of first measuring head (46) links to each other through first pressure sensor (65) and the piston rod of first measuring head drive actuating cylinder (45), first measuring head guide pin bushing (50) cover is established on first measuring head (46), first measuring head drives actuating cylinder (45) and drives first measuring head (46) and reciprocate in first measuring head guide pin bushing (50), evenly distributed has three first formula sensor (52) on the outer wall of first measuring head guide pin bushing (50), first formula sensor (52) are used for detecting the difference of being surveyed semi-manufactured transmission's axle head and mark position.
2. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: the middle of the tray (5) is hollow, a plurality of pin holes are formed in the tray (5), a roller way (10) is arranged below the tray (5), and the roller way (10) is used for transporting the tray (5).
3. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: the tray jacking mechanism comprises a jacking base (13), a jacking driving cylinder (26), a guide sleeve (29), a third guide rail (35) and a Z-shaped support (36), wherein the jacking driving cylinder (26), the guide sleeve (29) and the third guide rail (35) are fixed on the jacking base (13), and a piston rod of the jacking driving cylinder (26) is connected with a jacking driving plate (31);
a third sliding block (34) which is matched with the third guide rail (35) to slide is arranged at the bottom of the jacking driving plate (31), a bearing is arranged on the side wall of the jacking driving plate (31), and the bearing is matched with a Z-shaped groove on the side wall of the Z-shaped support (36) to slide;
the inner movable connection of the guide sleeve (29) is provided with a guide rod (30), the top of the guide rod (30) is provided with a jacking plate (27), the jacking plate (27) is connected with a Z-shaped support (36), and the jacking plate (27) is provided with a positioning support rod (28).
4. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: the second measuring assembly comprises a second measuring head driving cylinder (48), a second measuring head (47), a second measuring head guide sleeve (56), a second driving cylinder guide rod (58), a second pressure sensor (66), a second driving cylinder guide sleeve (57), a V plate support column (62), a second driving cylinder support column (63) and a V plate (64), the second measuring head driving cylinder (48) is connected with the top of the second driving cylinder guide rod (58) through the second pressure sensor (66), the bottom of the second driving cylinder guide rod (58) is connected with the second measuring head guide sleeve (56), the second driving cylinder guide sleeve (57) is fixed on the support plate (38), the second measuring head driving cylinder (48) drives the second driving cylinder guide rod (58) to move up and down in the second driving cylinder guide sleeve (57), the V plate (64) is connected with the support plate (38) through the V plate support column (62), the second measuring head driving cylinder (48) is fixed on the support plate (38) through the second driving cylinder support column (63), the second measuring head driving cylinder guide sleeve (56) is uniformly sleeved on the second measuring head guide sleeve (47), and the second measuring head guide sleeve (55) is uniformly distributed on the outer wall of the second measuring head (56), the second pen-type sensor (55) is used for detecting the difference between the differential shaft end position and the index point position of the tested semi-finished transmission.
5. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: planet axle drive assembly includes step motor support (53), step motor (37), belt (54), belt pulley (59) and fork axle (61), step motor (37) are fixed on mounting panel (38) through step motor support (53), the motor shaft of step motor (37) passes through belt (54) and is connected with belt pulley (59) transmission, belt pulley (59) are connected with mounting panel (38) through belt pulley fixing base (60), belt pulley (59) link to each other with fork axle (61) through the pivot, pivot and fork axle (61) all are located second measuring head (47).
6. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: elevating system includes servo motor (12), lead screw (18) and first slider (16), servo motor (12) are fixed at the top of frame (9), lead screw (18) link to each other with the motor shaft of servo motor (12), be provided with the nut with lead screw (18) threaded connection on tripod (11), two first slider (16) set up respectively in the both sides of tripod (11), be provided with on frame (9) with first slider (16) cooperation gliding first guide rail (17).
7. The dynamic measurement device of the dimension of the hybrid transmission shafting of claim 1, characterized in that: the calibration mechanism comprises a calibration plate (19), a calibration plate sliding table (14), a calibration plate support (24), a calibration driving cylinder (25), a second slider (32) and a second guide rail (33), the calibration plate sliding table (14) and the calibration driving cylinder (25) are fixed on the calibration plate support (24), the second guide rail (33) is arranged on the calibration plate sliding table (14), the bottom of the calibration plate (19) is provided with the second slider (32) which is matched with the second guide rail (33) to slide, a piston rod of the calibration driving cylinder (25) is connected with the calibration plate (19), and the calibration driving cylinder (25) drives the calibration plate (19) to move back and forth on the calibration plate sliding table (14).
8. A measurement method of a dynamic measurement device of a dimension of a hybrid transmission shafting according to any one of claims 1 to 7, characterized by comprising:
s1, before measurement, a measurement mechanism needs to be calibrated through a calibration mechanism, and after calibration is finished, the calibration mechanism returns to the original position;
s2, the measured semi-finished transmission enters a measuring device, and a lifting mechanism drives a measuring mechanism to move downwards so that the measuring mechanism is in contact with the measured semi-finished transmission to measure;
and S3, calculating to obtain the actual size of the differential assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface, the actual size of the output shaft assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface and the actual size of the motor rotor assembly bearing end surface of the tested semi-finished transmission from the clutch shell joint surface.
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