CN110345848B - Assembly evaluation system for annular multi-petal die castings of production line - Google Patents
Assembly evaluation system for annular multi-petal die castings of production line Download PDFInfo
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- CN110345848B CN110345848B CN201910643666.1A CN201910643666A CN110345848B CN 110345848 B CN110345848 B CN 110345848B CN 201910643666 A CN201910643666 A CN 201910643666A CN 110345848 B CN110345848 B CN 110345848B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
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Abstract
The invention relates to the technical field of workpiece assembly, in particular to an annular multi-petal die casting assembly evaluation system, which comprises a horizontal positioning, centering, clamping and rotating mechanism, a size measuring mechanism and a data processing system, wherein the horizontal positioning, centering, clamping and rotating mechanism is arranged on the horizontal positioning, centering and clamping mechanism; the horizontal positioning, centering and clamping rotating mechanism and the size measuring mechanism are arranged adjacently; the horizontal positioning, centering and clamping rotating mechanism comprises a workbench, a guide bearing mechanism, a workpiece fixing device, a servo motor, a lower rotating shaft, an upper rotating shaft, a first cylinder assembly, a first induction area, a second induction area, a third induction area and a fourth induction area; the dimension measuring mechanism comprises a second supporting column, a mounting base plate, a detection swing seat, a second air cylinder assembly and an X-Y manual displacement sliding table; the assembly evaluation system provided by the invention realizes the whole automation and intellectualization: need not artifical on duty, work efficiency is high.
Description
Technical Field
The invention belongs to the technical field of workpiece assembly, and particularly relates to an assembly evaluation system for an annular multi-petal die casting in a production line.
Background
In the case of products related to electromagnetic applications, a large number of die castings are used and there are a certain strict range of requirements for the dimensions of the die castings. Such as the housing, rotor, stator, etc., of the rotating machine/generator; the dimensions have a multi-faceted effect on assembly, noise, vibration, etc.
At present, severe operation requirements and statistical difficulty are brought to circular and annular size measurement, most size test and evaluation systems are based on laboratory spot-checking methods of quality inspection departments, and production cannot be fed back and controlled timely and efficiently; a large amount of labor cost and time are consumed; and the requirements of real-time full inspection, statistics, record storage, timely feedback of abnormal size and production fault diagnosis of the produced products cannot be realized.
The current market aims at the shortage of production application systems and the market demand, and the system is used for solving the problem.
The Chinese application CN109470313A provides an automatic radius detector, which comprises a testing mechanism and a rotating mechanism, wherein the rotating mechanism is installed on the testing mechanism, the testing mechanism comprises a square tube bracket, a height sensor, a temperature compensator, a height sensing block, a rotor sensor, a first copper wire ring, a radius sensing block and an electric box, and the rotating mechanism comprises a servo motor, a motor mounting plate, a belt pulley, a belt, an adjusting block, an air cylinder, a rotating shaft, a spring, an expansion sleeve, a stretching shaft, a tool fixing block and a second copper wire ring; the invention has the function of detecting the radius, the height and the back electromotive force of the rotor, and can solve the problems of single detection function and overlong detection time of the existing market equipment. Although the invention can measure the curve, the radius of the inner ring of the rotor is measured, the annular multi-petal die casting cannot be measured, and the centering of the invention is unstable, thereby influencing the measurement result.
The Chinese application CN109540508A discloses a circle center orientation testing mechanism, which comprises a pressing device, a product tool and an orientation testing part; the pressing device of the circle center directional testing mechanism is provided with a fixed panel, the reinforcing rib plate is arranged on the fixed panel, a linear guide rail is arranged on the side surface of the reinforcing rib plate, a cylinder fixing seat is arranged on the linear guide rail, and the reinforcing rib plate is used for reinforcing the mechanism to enable the mechanism to stably move; the cylinder is installed and is the power supply that reciprocates on the cylinder fixing base, and the cylinder is through compressing tightly the fixed block and connecting the direction slider, compress tightly the fixed block other end and connect the rubber briquetting of excelling in, the rubber briquetting of excelling in uses plastic class material for better pasting tight product and prevent scratch product when compressing tightly downwards. Although the circle center orientation testing mechanism provided by the invention has the advantages of high production efficiency, low cost, simplicity in operation and convenience in maintenance, the fixed workpiece is unstable in centering, and the measurement result is influenced.
Disclosure of Invention
Aiming at the problems, the invention is realized by the following technical scheme: the assembly evaluation system for the annular multi-petal die castings of the production line comprises a horizontal positioning, centering, clamping and rotating mechanism, a size measuring mechanism and a data processing system;
the horizontal positioning, centering and clamping rotating mechanism and the size measuring mechanism are arranged adjacently;
the horizontal positioning, centering and clamping rotating mechanism comprises a workbench, a guide bearing mechanism, a workpiece fixing device, a servo motor, a lower rotating shaft, an upper rotating shaft, a first cylinder assembly, a first induction area, a second induction area, a third induction area and a fourth induction area; a servo motor is arranged on the bottom surface of the workbench; the top surface of the workbench is provided with a guide bearing mechanism, a lower rotating shaft is arranged on the guide bearing mechanism, and a second induction area and a first induction area are respectively arranged at the upper end and the lower end of the lower rotating shaft; a workpiece fixing device is arranged at the upper end of the second induction area; a fourth induction area is arranged above the upper rotating shaft; the lower end of the upper rotating shaft is provided with a spring lantern ring and a fixing ring; the fixing ring is sleeved on the spring lantern ring, a pressure head frame is further arranged on the rear side of the workbench, a first cylinder assembly is mounted at the upper end of the pressure head frame, and a third induction area is arranged on the right rear side of the workbench;
the dimension measuring mechanism comprises a second supporting column, a mounting base plate, a detection swing seat, a second air cylinder assembly and an X-Y manual displacement sliding table; the second supporting column is installed on the workbench, an installation bottom plate is arranged on the top surface of the second supporting column, a detection swing seat is arranged on the front side of the installation bottom plate, and an X-Y manual displacement sliding table is arranged on the rear side of the installation bottom plate; the mounting bottom plate on the right side of the detection swing seat and the X-Y manual displacement sliding table is respectively provided with a movable seat and a seat; a second air cylinder assembly is arranged on the mounting bottom plate on the right side of the movable seat and the seat;
the X-Y manual displacement sliding table is provided with a laser displacement sensor, the laser displacement sensor is used for collecting data and transmitting the data to the controller, the data processing system comprises a controller, and the controller is used for processing the data collected by the laser displacement sensor.
Preferably, the guide bearing mechanism comprises a guide shaft support, a guide shaft, a coupling, a bearing support mounting plate and a first bearing support; a shaft coupling is arranged at the shaft extension end of the servo motor; the lower end of the lower rotating shaft extends into the coupler, a guide shaft support is mounted on the workbench, and a guide shaft is mounted in the guide shaft support; the upper end of the guide shaft is provided with a bearing seat mounting plate; the bearing seat mounting plate is provided with a first bearing seat, and the lower end of the lower rotating shaft is sleeved in the first bearing seat.
Preferably, the first cylinder assembly comprises a base plate, a bearing sleeve, a guide post, a cylinder push plate and a second bearing seat; the upper part of the pressure head frame is symmetrically provided with a substrate, the substrate is provided with a bearing sleeve, the lower end of the guide post penetrates through the bearing sleeve and the substrate to be connected with the cylinder push plate, and the upper end of the guide post is provided with a limiting ring; a first cylinder is arranged on the pressure head frame between the two substrates, and a cylinder push plate is arranged at the extending end of the first cylinder; and a second bearing seat is arranged below the cylinder push plate and sleeved at the upper end of the upper rotating shaft.
Preferably, the first sensing area comprises a first sensor mounting bracket, a first photoelectric sensing switch and a first photoelectric switch sensing piece; a first sensor mounting bracket and a first photoelectric sensing switch are mounted on the side edge of the coupler; the lower end of the lower rotating shaft is sleeved in the first photoelectric switch induction sheet;
the second induction area comprises a second inductor mounting bracket and a second photoelectric induction switch; a second sensor mounting bracket and a second photoelectric induction switch are mounted on the bearing seat mounting plate;
the third induction area comprises a third photoelectric switch induction sheet, a third photoelectric induction switch and a third inductor mounting bracket; a third photoelectric switch induction sheet is arranged on the upper plane of the upper rotating shaft, a third inductor mounting bracket is arranged on the front side surface of the substrate, and a third photoelectric induction switch is arranged on the third inductor mounting bracket;
the fourth induction area comprises a fourth inductor mounting bracket and a fourth photoelectric induction switch; and a fourth sensor mounting bracket and a fourth photoelectric sensing switch are mounted on the right rear side of the workbench.
Preferably, the workpiece fixing device further comprises a positioning disc, a second supporting column, a model changing base plate and a limiting column; a positioning disc is arranged on the upper end surface of the lower rotating shaft; the positioning disc is provided with a second supporting column, the top end of the second supporting column is provided with a model changing backing plate, and the model changing backing plate is provided with a limiting column.
Preferably, a roller bearing assembly and a bearing rotating shaft assembly are arranged on the detection swinging seat; the roller bearing assembly is of a cylindrical structure and is arranged on one side, close to the movable seat, in the detection swing seat, and the bearing rotating shaft assembly is arranged in a circular hole in the top end of the detection swing seat.
Preferably, the model changing base plate is a circular base plate, a tensioning column is arranged in the circular ring, an annular multi-petal die casting is arranged outside the tensioning column, and when data are collected, the spring sleeve is sleeved on the periphery of the tensioning column and embedded in the annular multi-petal die casting; the annular multi-petal die casting is located on the front side face of a roller of the roller bearing assembly, and the laser displacement sensor is located on the rear side face of the roller bearing assembly.
Preferably, the second cylinder assembly comprises a second cylinder, a cylinder mounting seat and a cylinder joint; one end of the second cylinder is installed on the cylinder installation seat, the other end of the second cylinder is connected with a cylinder joint, and the cylinder joint is connected with the movable seat.
Preferably, an L plate is further arranged on the X-Y manual displacement sliding table and connected with the laser displacement sensor.
Preferably, a spring pull sleeve is arranged between the movable seat and the seat; one end of the spring pull sleeve is connected with the seat, and the other end of the spring pull sleeve is connected with the movable seat.
Compared with the prior art, the invention has the beneficial effects that:
(1) the tensioning column is arranged in the circular ring of the model changing base plate, the annular multi-petal die casting is arranged outside the tensioning column, and when data are collected, the spring sleeve is sleeved outside the tensioning column and embedded in the annular multi-petal die casting; the spring lantern ring and the fixing ring are sleeved on the periphery of the tensioning column, so that the spring lantern ring is propped by the tensioning column, and the annular multi-petal die casting piece-workpiece is centered, the problem of poor centering of the original workpiece is solved, the influence of unstable centering of the workpiece on the measurement precision is avoided, and the radius measurement structure can realize high-precision size measurement.
(2) According to the X-Y manual displacement sliding table provided by the invention, the laser displacement sensor can be used for adjusting the closest point of the roller opposite to the roller bearing assembly, so that data can be acquired more accurately, and the problem of difficulty in previous adjustment is solved.
(3) The first induction area, the second induction area, the third induction area and the fourth induction area can accurately sense the position of an annular multi-petal die casting-workpiece and can achieve accurate positioning.
(4) The whole process of the invention runs automatically, and provides data and state in the whole process and result statistics and judgment information related to the data and the state. Under automation and intellectualization, various defects caused by manpower are reduced, the market blank is filled, and an intelligent detection component is provided for industry 4.0.
(5) The assembly evaluation system provided by the invention can test the outline of a round or annular multi-lobe shape, analyze out-of-roundness, perform assembly evaluation analysis on the product through set conditions, and place the unqualified product in a designated area.
Drawings
FIG. 1 is a general view of a production line annular multi-petal die casting assembly evaluation system provided by the invention;
FIG. 2 is a schematic structural diagram of a horizontal positioning, centering, clamping and rotating mechanism and a radius measuring mechanism provided in the present invention;
FIG. 3 is a schematic structural diagram of a horizontal positioning, centering, clamping and rotating mechanism provided by the present invention;
FIG. 4 is an enlarged view of a horizontal positioning, centering, clamping and rotating mechanism of the present invention at view A;
FIG. 5 is an enlarged view of the horizontally oriented centering clamping rotary mechanism provided by the present invention at B;
FIG. 6 is an enlarged view of the horizontally oriented centering clamping rotary mechanism provided by the present invention at FIG. C;
FIG. 7 is a schematic view of a radius measuring mechanism according to the present invention;
FIG. 8 is a schematic view of an X-Y manual displacement slide table according to the present invention;
FIG. 9 is a schematic structural view of an annular multi-petal die casting assembly evaluation system (without an annular multi-petal die casting installed) provided by the invention;
FIG. 10 is a schematic structural diagram of an annular multi-petal die casting assembly evaluation system (installation of annular multi-petal die casting) provided by the invention;
FIG. 11 is a table of evaluation results provided by the present invention;
FIG. 12 is a diagram of a radar chart evaluation architecture provided by the present invention;
FIG. 13 is a comparison of the evaluation structure provided by the present invention;
FIG. 14 is a schematic diagram of workpiece data processing;
fig. 15 is a partially enlarged view of fig. 14.
The specific meanings of the symbols in the drawings are as follows:
1: a work table; 2: a servo motor; 3: a guide shaft support; 4: a guide shaft; 5: a coupling; 6: a first photoelectric switch induction sheet; 7: a first inductor mounting bracket; 8: a first photoelectric sensing switch; 9: a bearing seat mounting plate; 10: a first bearing housing; 11: a lower rotating shaft; 12: a second inductor mounting bracket; 13: a second photoelectric sensing switch; 14: positioning the disc; 15: a first support column; 16: changing a model number backing plate; 17: a limiting column; 18: a head pressing frame; 19: a spring collar; 20: a fixing ring; 21: an upper rotating shaft; 22: a third photoelectric switch induction sheet; 23: a third photoelectric sensing switch; 24: a third inductor mounting bracket; 25: a second bearing housing; 26: a cylinder push plate; 27: a substrate; 28: a bearing housing; 29: a guide post; 30: a first cylinder; 31: a limiting ring; 32: a fourth inductor mounting bracket; 33: a fourth photoelectric sensing switch; 34: a second support column; 35: mounting a bottom plate; 36: detecting the swinging seat; 37: a roller bearing assembly; 38: a bearing shaft assembly; 39: an X-Y manual displacement slide table; 40: an L plate; 41: a laser displacement sensor; 42: a seat; 43: pulling a sleeve by a spring; 44: a second cylinder; 45: a cylinder mounting seat; 46: a cylinder joint; 47: a movable seat; 48: an annular multi-petal die casting assembly evaluation system; 49: a feeding manipulator; 50: a feeding manipulator; 51: a production line; 52: NG cache lines; 53: an annular multi-petal die casting; 54: a horizontal positioning centering clamping rotating mechanism; 55: a radius measuring mechanism; 56: a tension column; 57: a line 1; 58: a wire 2; 59: a wire 3; 60: a wire 4; 61: maximum value of segment value; 62: a standard circle value; 63: an upper tolerance maximum; 64: the lower tolerance minimum.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1-2, fig. 1 is a general view of a production line annular multi-petal die casting assembly evaluation system provided by the invention; FIG. 2 is a schematic structural diagram of a horizontal positioning, centering, clamping and rotating mechanism and a radius measuring mechanism provided in the present invention;
the assembly evaluation system for the annular multi-petal die castings in the production line comprises an annular multi-petal die casting assembly evaluation system 48, a feeding manipulator 49, a discharging manipulator 50, a production line 51 and an NG cache line 52;
the invention is realized by the following technical scheme: the assembly evaluation system 48 for the annular multi-petal die castings in the production line comprises a horizontal positioning, centering, clamping and rotating mechanism 54, a radius measuring mechanism 55 and a data processing system; the horizontal positioning, centering, clamping and rotating mechanism 54 and the radius measuring mechanism 55 are arranged adjacently;
referring to fig. 3 to 6, the horizontal positioning, centering, clamping and rotating mechanism 54 provided by the present invention includes a worktable 1, a guide bearing mechanism, a workpiece fixing device, a servo motor 2, a lower spindle 11, an upper spindle 21, a first cylinder assembly, a first induction zone, a second induction zone, a third induction zone, and a fourth induction zone; a servo motor 2 is arranged on the bottom surface of the workbench 1; a guide bearing mechanism is arranged on the top surface of the workbench 1, a lower rotating shaft 11 is arranged on the guide bearing mechanism, and a second induction area and a first induction area are respectively arranged at the upper end and the lower end of the lower rotating shaft 11; a workpiece fixing device is arranged at the upper end of the second induction area; a fourth induction area is arranged above the upper rotating shaft 21; the lower end of the upper rotating shaft 21 is provided with a spring lantern ring 19 and a fixed ring 20; the fixing ring 20 is sleeved on the spring lantern ring 19, the rear side of the workbench 1 is also provided with a pressure head frame 18, the upper end of the pressure head frame 18 is provided with a first cylinder assembly, and the right rear side of the workbench 1 is provided with a third induction area;
wherein, a spring pull sleeve 43 is arranged between the movable seat 47 and the seat 42; one end of the spring pull sleeve 43 is connected with the seat 42, and the other end is connected with the movable seat 47.
The first induction area provided by the invention comprises a first inductor mounting bracket 7, a first photoelectric induction switch 8 and a first photoelectric switch induction sheet 6; a first inductor mounting bracket 7 and a first photoelectric inductive switch 8 are mounted on the side edge of the coupler 5; the lower end of the lower rotating shaft 11 is sleeved in the first photoelectric switch induction sheet 6;
the second sensing area comprises a second sensor mounting bracket 12 and a second photoelectric sensing switch 13; a second sensor mounting bracket 12 and a second photoelectric induction switch 13 are mounted on the bearing seat mounting plate 9;
the third induction area comprises a third photoelectric switch induction sheet 22, a third photoelectric induction switch 23 and a third inductor mounting bracket 24; a third photoelectric switch induction sheet 22 is arranged on the upper plane of the upper rotating shaft 21, a third inductor mounting bracket 24 is arranged on the front side surface of the substrate 27, and a third photoelectric induction switch 22 is arranged on the third inductor mounting bracket 24;
the fourth sensing area comprises a fourth sensor mounting bracket 32 and a fourth photoelectric sensing switch 33; a fourth inductor mounting bracket 32 and a fourth photoelectric induction switch 33 are mounted on the right rear side of the table 1.
As a preferred embodiment, the first photoelectric sensing switch 8 (lower sensor) provided by the present invention has 27 sections for measuring the petal section of the product, and the 27 sections need to rotate for 1 turn, and the first photoelectric sensing switch 8 confirms whether the rotation is enough for 1 turn;
in a preferred embodiment, the second photoelectric sensing switch 13 provided by the invention senses 27 petal sections, and the data collected by the 27 petal sections are collected and processed in a segmented manner.
As a preferred embodiment, the present invention provides a third inductor 23 (upper inductor): because the petal section of the product to be measured has 27 sections, the 27 sections are measured to be rotated for 1 circle, and the third inductor 23 is used for confirming whether the petal section is rotated for 1 circle or not;
as a preferred embodiment, the present invention provides the fourth photo-electric inductive switch 33: sense if there is a workpiece? Starting automatic detection after a workpiece exists;
referring to fig. 7-10, the radius measuring mechanism 55 includes a second support pillar 34, a mounting base plate 35, a detection swing seat 36, a second cylinder assembly, and an X-Y manual displacement slide 39; the second supporting column 34 is installed on the workbench, an installation bottom plate 35 is arranged on the top surface of the second supporting column 34, a detection swing seat 36 is arranged on the front side of the installation bottom plate 35, and an X-Y manual displacement sliding table 39 is arranged on the rear side of the installation bottom plate 35; the installation bottom plate 35 on the right side of the detection swinging seat 36 and the X-Y manual displacement sliding table 39 is respectively provided with a movable seat 47 and a seat 42; a second air cylinder assembly is arranged on the mounting bottom plate 35 on the right side of the movable seat 47 and the seat 42;
wherein, be provided with laser displacement sensor 41 on the manual displacement slip table 39 of X-Y, laser displacement sensor 41 is used for data acquisition and transmits for the controller, data processing system includes the controller, the controller is used for handling the data that laser displacement sensor 41 gathered.
The X-Y manual displacement sliding table is further provided with an L plate 40, and the L plate 40 is connected with a laser displacement sensor 41.
The guide bearing mechanism comprises a guide shaft support 3, a guide shaft 4, a coupler 5, a bearing support mounting plate 9 and a first bearing support 10; a shaft coupling 5 is arranged at the shaft extension end of the servo motor 2; the lower end of the lower rotating shaft 11 extends into the coupler 5, a guide shaft support 3 is installed on the workbench 1, and a guide shaft 4 is installed in the guide shaft support 3; the upper end of the guide shaft 4 is provided with a bearing seat mounting plate 9; the bearing seat mounting plate 9 is provided with a first bearing seat 10, and the lower end of a lower rotating shaft 11 is sleeved in the first bearing seat 10.
Wherein, the first cylinder assembly comprises a base plate 27, a bearing sleeve 28, a guide post 29, a cylinder push plate 26 and a second bearing seat 25; a base plate 27 is symmetrically arranged above the pressure head frame 18, a bearing sleeve 28 is arranged on the base plate 27, the lower end of the guide column 29 penetrates through the bearing sleeve 28 and the base plate 27 to be connected with the cylinder push plate 26, and the upper end of the guide column 29 is provided with a limiting ring 31; a first air cylinder 30 is arranged on the pressure head frame 18 between the two base plates 27, and an extending end of the first air cylinder 30 is provided with an air cylinder push plate 26; a second bearing seat 25 is installed below the cylinder push plate 26, and the second bearing seat 25 is sleeved on the upper end of the upper rotating shaft 21.
The workpiece fixing device provided by the invention further comprises a positioning disc 14, a first supporting column 15, a model changing base plate 16 and a limiting column 17; a positioning disc 14 is arranged on the upper end face of the lower rotating shaft 11; install first support column 15 on the positioning disc 14, model changing backing plate 16 is installed on first support column 15 top, spacing post 17 is installed to model changing backing plate 16.
Wherein, the detection swing seat 36 provided by the invention is provided with a roller bearing assembly 37 and a bearing rotating shaft assembly 38; the roller bearing assembly 37 is of a cylindrical structure and is arranged on one side, close to the movable seat 47, in the detection swing seat 36, and the bearing rotating shaft assembly 37 is arranged in a circular hole in the top end of the detection swing seat 36.
The model changing base plate 16 is a circular base plate, a tensioning column 56 is arranged in the circular ring, an annular multi-petal die casting is arranged outside the tensioning column 56, the spring sleeve ring 19 is sleeved on the periphery of the tensioning column 56 when data are collected, and the spring sleeve ring 19 is embedded in the annular multi-petal die casting; the annular multi-petal die casting is located on the front side surface of the roller bearing assembly 37, and the laser displacement sensor 41 is located on the rear side surface of the roller bearing assembly 37.
The second air cylinder assembly comprises a second air cylinder 44, an air cylinder mounting seat 45 and an air cylinder joint 46; one end of the second cylinder 44 is mounted on the cylinder mounting seat 45, the other end of the second cylinder is connected with a cylinder joint 46, and the cylinder joint 46 is connected with the movable seat 47.
The action flow of the horizontal positioning, centering, clamping and rotating mechanism provided by the invention is as follows: a workpiece (annular multi-petal die casting) is placed on the model changing base plate 16 through a feeding manipulator, after the second photoelectric inductive switch 13 and the fourth photoelectric inductive switch 33 sense the workpiece, the first air cylinder 30 acts to push the air cylinder push plate 26, the spring sleeve ring 19 is pressed into the tensioning column 56, and the spring sleeve ring 19 uniformly supports the tensioning column 56 to enable the workpiece (annular multi-petal die casting) to be centered and expanded. The servomotor 2 is then rotated at a slow speed (about 1 revolution/10 s), the workpiece (annular multi-petal die casting) is rotated 1 revolution, and data acquisition is carried out by the radius measuring mechanism (maximum of 27 arc segments). And after the completion, taking away the workpiece by the discharging manipulator, putting the qualified product back to the empty tray of the assembly line, and putting the NG cache line on the NG product and releasing the empty tray of the assembly line.
Note that the key points of the horizontal positioning, centering, clamping and rotating mechanism provided by the present invention are the control of the flatness of the entire tool, the coaxiality of the upper rotating shaft 11 and the lower rotating shaft 21, and the rotation runout, and the centering and the expansion of the workpiece (when the workpiece is not expanded, the first photoelectric sensing switch 8 and the third photoelectric sensing switch 23 are not synchronized).
The action flow of the radius measuring mechanism provided by the invention is as follows: after the workpiece is clamped by the horizontal positioning, centering and clamping rotating mechanism, the second air cylinder 44 pushes the detection swinging seat 36 to enable the roller provided with the roller bearing assembly 37 to be in contact with the excircle of the workpiece, and in the process of rotating the workpiece for one circle, the position of each section of petals is detected and data is collected.
Referring to fig. 14-15, the working principle of the assembly evaluation system for the annular multi-petal die castings in the production line provided by the invention is as follows:
(1) the standard piece (standard circle) is put into the measuring position, and the calibration is carried out (zero: the runout of the relative roller 37 is zero), and the absolute value of the radius is as follows: ra (note: Ra is a known value) and then on this basis, the tolerance is set in, and the upper tolerance maximum value (circle 63 in fig. 15) and the lower tolerance minimum value (circle 64 in fig. 15) are set. And finishing the first calibration step.
(2) The measured workpiece (annular multi-petal die casting) is put into the measuring device, the roller in the roller bearing assembly 37 is attached to the excircle of the workpiece, namely the front side surface of the roller in the roller bearing assembly 37 is contacted with the excircle of the rotating workpiece, along with the fluctuation of the excircle of the workpiece, the detecting head of the laser displacement sensor 41 faces the rear side surface of the roller, the data of the fluctuation displacement (relative displacement) of the roller is collected and transmitted to the controller, after the data is processed by the controller, the maximum value of 27 sections is screened out, then the 27 maximum values (the line 61 in the figure 15) are judged whether to be in the range of the maximum value of the upper tolerance and the minimum value of the lower tolerance, if so, the loading manipulator is controlled to be in the qualified area, and if not in the range, the loading manipulator is controlled to be in the NG area.
Example 1
Referring to fig. 3-6, a servo motor 2 is installed below a worktable 1, a guide shaft support 3 is installed above the worktable 1, a guide shaft 4 is installed in the guide shaft support 3, a coupling 5 is installed at the shaft extension end of the servo motor 2, and a first sensor installation support 7 and a first photoelectric sensing switch 8 are installed at the side edge of the coupling; then, the bearing seat mounting plate 9 is mounted at the upper ends of the four guide shafts 4 and is adjusted to be in a horizontal state. A bearing seat 10 (containing a high-precision needle bearing and a thrust bearing) is mounted on the bearing seat mounting plate 9; the lower rotating shaft 11 is taken down to penetrate through the first bearing seat 10, the small end of the lower rotating shaft 11 is sleeved with the first photoelectric switch induction sheet 6, and the small end of the lower rotating shaft 11 extends into the coupler 5 and is fastened and connected. A second sensor mounting bracket 12 and a second photoelectric induction switch 13 are mounted on the bearing seat mounting plate 9; a positioning disc 14 is arranged on the large end of the lower rotating shaft 11; a first support column 15 is arranged on the positioning disc 14, a model changing base plate 16 is arranged on the first support column 15, and a limiting column 17 is arranged on the model changing base plate 16; the model changing base plate 16 is a circular base plate, a tensioning column 56 is arranged in the circular base plate, an annular multi-petal die casting is arranged outside the tensioning column 56, a pressure head frame 18 is arranged on the rear side of the workbench 1, a base plate 27 is arranged above the pressure head frame 18, a bearing sleeve 28, two guide columns 29 and a first air cylinder 30 are arranged on the base plate 27; installing a limiting ring 31 at the upper end of the guide post 29, then enabling the lower end of the guide post 29 to pass through the bearing sleeve 28 and the base plate 27, installing and connecting a cylinder push plate 26 at the lower ends of the two guide posts 29 and the extending end of the first cylinder 30, taking the upper rotating shaft 21, enabling the small end of the upper rotating shaft to penetrate into the bearing seat 25 (containing a thrust bearing) and be connected and fastened, and then fastening the bearing seat 25 (containing the thrust bearing) under the cylinder push plate 26; a spring lantern ring 19 and a fixed ring 20 are sleeved together and then are arranged at the lower end of an upper rotating shaft 21; installing a sensing piece 22 on the upper plane of the upper rotating shaft 21, installing an inductor installing support 24 on the front side surface of an installing substrate 26, installing a third photoelectric sensing switch 23 and adjusting the position of the third photoelectric sensing switch 22; a fourth sensor mounting bracket 32 is mounted on the right rear side of the workbench 1, and a whole set of horizontal positioning, centering, clamping and rotating mechanism is formed by the fourth sensor mounting bracket and a fourth photoelectric sensing switch 33; finally, the flatness of the plane of the workpiece placed on the adjusting mechanism is within 0.01mm, and the coaxiality and the rotating jumping quantity of the upper rotating shaft 21 and the lower rotating shaft 11 are adjusted to be within 0.01 mm.
Referring to fig. 7, the second supporting column 34 is installed on the working platform 1, the detecting mechanism installation base plate 35 is installed on the second supporting column 34, the roller bearing assembly 37, the bearing rotating shaft assembly 38 and the movable seat 47 are installed on the detecting swing seat 36, and then the whole is installed on the front side of the detecting mechanism installation base plate 35; the L plate 40 is connected with a high-precision laser displacement sensor 41 and is arranged on the X-Y manual displacement sliding table 39; and then integrally mounted on the rear side of the detection mechanism mounting base plate 35; a seat 42 is arranged on the right rear side of the detection mechanism mounting bottom plate 35, a spring pull sleeve 43 is arranged on the seat 42, and the other end of the spring pull sleeve 43 is connected with a movable seat 47; the cylinder 44 is preassembled with the cylinder mounting seat 45 and the cylinder joint 46, and then integrally mounted on the rightmost side of the detection mechanism mounting base plate 35, and the cylinder joint 46 and the movable seat 47 are connected together to form a whole set of radius measuring mechanism.
Referring to fig. 13, line 1 in fig. 13 is the maximum upper tolerance, line 2 is the minimum lower tolerance, line 3 is the standard circle value, and line 4 is the value of the workpiece, so that the workpiece values are all between the maximum upper tolerance and the minimum lower tolerance, i.e., pass.
The above-described series of detailed descriptions are merely specific to possible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and various changes made without departing from the gist of the present invention within the knowledge of those skilled in the art are included in the scope of the present invention.
Claims (10)
1. The assembly evaluation system for the annular multi-petal die castings of the production line comprises a horizontal positioning, centering, clamping and rotating mechanism, a size measuring mechanism and a data processing system; the horizontal positioning, centering and clamping rotating mechanism and the size measuring mechanism are arranged adjacently; the horizontal positioning, centering and clamping rotating mechanism comprises a workbench, a guide bearing mechanism, a workpiece fixing device, a servo motor, a lower rotating shaft, an upper rotating shaft, a first cylinder assembly, a first induction area, a second induction area, a third induction area and a fourth induction area; a servo motor is arranged on the bottom surface of the workbench; the top surface of the workbench is provided with a guide bearing mechanism, a lower rotating shaft is arranged on the guide bearing mechanism, and a second induction area and a first induction area are respectively arranged at the upper end and the lower end of the lower rotating shaft; a workpiece fixing device is arranged at the upper end of the second induction area; a third induction area is arranged above the upper rotating shaft; the lower end of the upper rotating shaft is provided with a spring lantern ring and a fixing ring; the fixing ring is sleeved on the spring lantern ring, a pressure head frame is further arranged on the rear side of the workbench, a first cylinder assembly is mounted at the upper end of the pressure head frame, and a fourth induction area is arranged on the right rear side of the workbench; the dimension measuring mechanism comprises a second supporting column, a mounting base plate, a detection swing seat, a second air cylinder assembly and an X-Y manual displacement sliding table; the second supporting column is installed on the workbench, an installation bottom plate is arranged on the top surface of the second supporting column, a detection swing seat is arranged on the front side of the installation bottom plate, and an X-Y manual displacement sliding table is arranged on the rear side of the installation bottom plate; the mounting bottom plate on the right side of the detection swing seat and the X-Y manual displacement sliding table is respectively provided with a movable seat and a seat; a second air cylinder assembly is arranged on the mounting bottom plate on the right side of the movable seat and the seat; the X-Y manual displacement sliding table is provided with a laser displacement sensor, the laser displacement sensor is used for acquiring data and transmitting the data to the controller, the data processing system comprises a controller, and the controller is used for processing the data acquired by the laser displacement sensor;
the workpiece fixing device comprises a model changing base plate, the model changing base plate is a circular base plate, a tensioning column is arranged in the circular ring, and an annular multi-petal die casting is arranged outside the tensioning column; when data are collected, the spring sleeve is sleeved on the periphery of the tensioning column, and the spring sleeve is embedded in the annular multi-petal die casting;
the first induction area is used for testing whether the petal section of the workpiece to be tested rotates for enough circle;
the second induction area is used for testing the number of petal sections in the induction area and acquiring data for sectional processing;
the third induction area is used for testing whether the petal section of the workpiece to be tested rotates for enough circle;
the fourth sensing area is used for sensing whether a workpiece exists or not.
2. The assembly evaluation system as claimed in claim 1; the guide bearing mechanism is characterized by comprising a guide shaft support, a guide shaft, a coupler, a bearing support mounting plate and a first bearing support; a shaft coupling is mounted at the shaft extension end of the servo motor, and the lower end of the lower rotating shaft extends into the shaft coupling; a guide shaft support is arranged on the workbench, and a guide shaft is arranged in the guide shaft support; the upper end of the guide shaft is provided with a bearing seat mounting plate; the bearing seat mounting plate is provided with a first bearing seat, and the first bearing seat is sleeved at the lower end of the lower rotating shaft.
3. The assembly evaluation system as claimed in claim 2; the first cylinder component comprises a substrate, a bearing sleeve, a guide post, a cylinder push plate and a second bearing seat; the upper part of the pressure head frame is symmetrically provided with a substrate, the substrate is provided with a bearing sleeve, the lower end of the guide post penetrates through the bearing sleeve and the substrate to be connected with the cylinder push plate, and the upper end of the guide post is provided with a limiting ring; a first air cylinder is arranged on the pressure head frame between the two substrates, and an air cylinder push plate is arranged at the extending end of the first air cylinder; and a second bearing seat is arranged below the cylinder push plate and sleeved at the upper end of the upper rotating shaft.
4. The assembly evaluation system as claimed in claim 3; the device is characterized in that the first induction area comprises a first inductor mounting bracket, a first photoelectric induction switch and a first photoelectric switch induction sheet; a first sensor mounting bracket and a first photoelectric sensing switch are mounted on the side edge of the coupler; the lower end of the lower rotating shaft is sleeved in the first photoelectric switch induction sheet; the second induction area comprises a second inductor mounting bracket and a second photoelectric induction switch; a second sensor mounting bracket and a second photoelectric induction switch are mounted on the bearing seat mounting plate; the third induction area comprises a third photoelectric switch induction sheet, a third photoelectric induction switch and a third inductor mounting bracket; a third photoelectric switch induction sheet is arranged on the upper plane of the upper rotating shaft, a third inductor mounting bracket is arranged on the front side surface of the substrate, and a third photoelectric induction switch is arranged on the third inductor mounting bracket; the fourth induction area comprises a fourth inductor mounting bracket and a fourth photoelectric induction switch; and a fourth sensor mounting bracket and a fourth photoelectric sensing switch are mounted on the right rear side of the workbench.
5. The assembly evaluation system as claimed in claim 1; the workpiece fixing device is characterized by further comprising a positioning disc, a first supporting column and a limiting column; a positioning disc is arranged on the upper end surface of the lower rotating shaft; install first support column on the positioning disc, the model changing backing plate is installed on first support column top, spacing post is installed to the model changing backing plate.
6. The assembly evaluation system as claimed in claim 5; the device is characterized in that a roller bearing assembly and a bearing rotating shaft assembly are arranged on the detection swinging seat; the roller bearing assembly is of a cylindrical structure and is arranged on one side, close to the movable seat, in the detection swing seat, and the bearing rotating shaft assembly is arranged in a circular hole in the top end of the detection swing seat.
7. The assembly evaluation system as claimed in claim 6; the laser displacement sensor is characterized in that the annular multi-petal die casting is located on the front side face of a roller of the roller bearing assembly, and the laser displacement sensor is located on the rear side face of the roller bearing assembly.
8. The assembly evaluation system as claimed in claim 1; the second air cylinder assembly comprises a second air cylinder, an air cylinder mounting seat and an air cylinder joint; one end of the second cylinder is installed on the cylinder installation seat, the other end of the second cylinder is connected with a cylinder joint, and the cylinder joint is connected with the movable seat.
9. The assembly evaluation system as claimed in claim 1; the X-Y manual displacement sliding table is characterized in that an L plate is further arranged on the X-Y manual displacement sliding table and connected with a laser displacement sensor.
10. The assembly evaluation system as claimed in claim 1; it is characterized in that a spring pull sleeve is arranged between the movable seat and the seat; one end of the spring pull sleeve is connected with the seat, and the other end of the spring pull sleeve is connected with the movable seat.
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| CN111981994B (en) * | 2020-08-19 | 2022-03-11 | 东台市杰顺机械制造有限公司 | Detection device for flywheel housing processing production |
| CN112595248B (en) * | 2020-12-23 | 2022-07-08 | 莱芜环球汽车零部件有限公司 | Automobile crankshaft journal precision measuring equipment |
| CN112665514B (en) * | 2021-01-11 | 2022-09-20 | 成都工业职业技术学院 | Automatic centering and high-speed detection device for hole spacing of mechanical parts |
| CN113589401B (en) * | 2021-09-29 | 2021-12-17 | 江苏益捷思信息科技有限公司 | Detection system for intelligent robot and working method thereof |
| CN114167514A (en) * | 2021-11-25 | 2022-03-11 | 韦树渊 | Round hole detection equipment for manufacturing high-end equipment |
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Address after: 519125 area a, 29 Xinke 1st Road, Baijiao Science and Technology Industrial Park, Doumen District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Jingshi Measurement and Control Technology Co.,Ltd. Address before: 519125 area a, 29 Xinke 1st Road, Baijiao Science and Technology Industrial Park, Doumen District, Zhuhai City, Guangdong Province Patentee before: P&R. MEASUREMENT Inc. |