CN104786149B - Reliability testing device of numerical control grinder measuring instrument system - Google Patents
Reliability testing device of numerical control grinder measuring instrument system Download PDFInfo
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- CN104786149B CN104786149B CN201510164147.9A CN201510164147A CN104786149B CN 104786149 B CN104786149 B CN 104786149B CN 201510164147 A CN201510164147 A CN 201510164147A CN 104786149 B CN104786149 B CN 104786149B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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Abstract
The invention belongs to the field of the precision manufacturing technology and industrial automatic control, and relates to a reliability testing device of a numerical control grinder measuring instrument system. The reliability testing device comprises a mechanical adjusting system and an electrical control system. The mechanical adjusting system comprises an axial measuring system, a radial measuring system and a workpiece tightening system. The testing device carries out reliability testing on a measuring instrument according to workpieces of a numerical control grinder under different rotating speeds, a frequency converter is controlled through a programmable logic controller, and therefore the rotating speed of a servo motor is controlled. A servo driver is controlled through the programmable logic controller, the rotating speed of the servo motor is controlled, and therefore the measuring position of the measuring instrument is controlled. The testing device simulates various different work conditions of the numerical control grinder, the measuring frequency of the measuring instrument and the rotating speed of the workpieces change according to needs, the programmable logic controller controls a touch screen to store data measured in the running process of the measuring instrument and failure data, and the reliability level of the numerical control grinder measuring instrument is calculated and evaluated through the data.
Description
Technical field
The present invention relates to a kind of experimental rig for evaluating numerically control grinder amount instrument system reliability, belongs to precision manufactureing skill
Art and field of industrial automation control.
Background technology
Numerically control grinder is widely used in machining manufacturing industry, and using numerical control program control servomotor emery wheel mill is driven
Cut axle class, plane etc..Numerically control grinder is usually last procedure of precision component processing, so the quality of numerically control grinder performance
The precision processed to part with the height of reliability and the efficiency of processing have important impact.
For numerically control grinder, the Main Function for measuring instrument system is the processing dimension for measuring workpiece so as to control workpiece
Precision, therefore it is the key component for ensureing Workpiece Machining Accuracy to measure instrument system.The height of amount instrument system reliability is to processing part
Precision have a direct impact.Measuring jaw is primarily present in numerically control grinder running passage instrument to damage, measure the damage of instrument arm, sensor damage
The problems such as bad, limitation travel switch is damaged, hydraulic cylinder does not work, once occurring, the part of processing is likely to useless to these problems
Product, have a strong impact on production efficiency.
In order to improve the reliability of numerically control grinder, it usually needs the fault data of collection numerically control grinder, numerical control is then calculated
The MTBF of grinding machine.When numerically control grinder is designed, in order to improve the reliability of the whole machine of numerically control grinder, need to select
The high parts of reliability, and want to understand the reliability level of parts, it is necessary to carry out reliability test.
The amount instrument system of numerically control grinder is one of key system components of numerically control grinder, the reliability of lifting capacity instrument, must
Reliability test must be carried out to measuring instrument.Workpiece rotational frequency difference in actual measurement process, measurement frequency are different, measurement position is different
Etc. the reliability of the possible influence amount instrument of factor, experimental rig allows for simulating different operating modes, exposes numerically control grinder amount instrument
Operating failure, the reliability to assess numerically control grinder amount instrument provides data.
Test of the numerically control grinder in design to measuring instrument system at present is mainly the test under no-load condition, and seldom carries out
Reliability test, causes the reliability basic data of numerically control grinder amount instrument system seldom, and designer cannot hold numerically control grinder
The reliability level of amount instrument system.
The content of the invention
It is an object of the invention to provide a kind of numerically control grinder amount instrument system reliability test, the device includes machinery tune
Section system, electric control system；Mechanical control system includes axially measured system, radial measurement system, Clamping System, examination
Proved recipe method includes data acquisition and processing (DAP) method.The experimental rig can simulate a variety of operating modes of numerically control grinder, measure instrument
Measurement frequency, the rotating speed of workpiece can be changed as needed, Controlled by Programmable Controller touch-screen reserve capacity instrument operation
During measurement data and fault data, the reliability level of numerically control grinder amount instrument is calculated, evaluated by these data.
For achieving the above object, the technical solution used in the present invention is a kind of numerically control grinder amount instrument system reliability test dress
Put, the device includes mechanical control system, electric control system；
Mechanical control system includes axially measured system, radial measurement system, Clamping System；
In axially measured system, axially measured system positions what measuring jaw (25) was realized by end face, end face positioning measuring jaw
(25) throughput instrument arm a (24) is connected with hydraulic cylinder a (23), and controlled quentity controlled variable instrument arm (24) is driven by hydraulic cylinder a (23), hydraulic cylinder a
(23) on slide block a (11), there is screw thread in slide block a (11), slide block a (11) coordinates with leading screw a (21), guide post a (10),
Slide block a (11) and leading screw a (21) is screw thread cooperation, and leading screw a (21) is parallel with guide post a (10), it is ensured that slide block a (11) is along guiding
Bar a (10) moves along a straight line；Leading screw a (21) is connected by shaft coupling a (17) with servomotor a (16), leading screw a (21) and be oriented to
Bar a (10) is fixed by gripper shoe a (13) and gripper shoe b (14), and servomotor a (16) is controlled by servo-driver a (54)；Servo
Motor a (16) is fixed on base a (9) by motor support plate a (15)；Gripper shoe a (13), gripper shoe b (14) are installed and fixed
On base a (9)；It is described to be respectively equipped with limitation travel switch a (19), origin row along guide post a (10) and leading screw a (21) direction
Cheng Kaiguan a (20), limitation travel switch b (8), origin travel switch a (20) for slide block a (11) initial motion position；It is spacing
Travel switch b (8) for slide block a (11) farthest movement position；Limitation travel switch a (19), limitation travel switch b (8) are arranged
Along guide post b (10), leading screw b (30) direction two ends；Axial vector instrument (67), displacement transducer a (12) are connected on electrical control system
The input of the Programmable Logic Controller (47) of system.
In radial measurement system, radial measurement is to survey sub (34) directly contact surface of the work measurement by diamond to realize
, diamond is surveyed sub (34) and is connected with amount instrument arm b (32) by measuring jaw (33), and amount instrument arm b (32) is driven by hydraulic cylinder b (31)；
Hydraulic cylinder b (31) has screw thread, slide block b (40) and leading screw b (30), guide post b on slide block b (40) in slide block b (40)
(39) coordinate, slide block b (40) and leading screw b (30) is screw thread cooperation, guide post b (39) is parallel with leading screw b (30), it is ensured that slide block b
(40) linear motion along guide post b (39) direction is done；Leading screw b (30) is by shaft coupling b (27) and servomotor b (26) phase
Even, leading screw b (30) and guide post b (39) is fixed by gripper shoe c (42) and gripper shoe d (43), and servomotor b (26) is driven by servo
Dynamic device b (56) control；Servomotor b (26) is fixed on base b (38) by motor support plate b (44)；Gripper shoe c (42),
Gripper shoe d (43) is fixed on base b (38)；It is described be respectively equipped with along guide post b (39) and leading screw b (30) direction it is spacing
Travel switch c (28), origin travel switch b (29), limitation travel switch d (35), origin travel switch b (29) is slide block b
(40) initial motion position；Limitation travel switch d (35) for slide block b (40) farthest movement position；Limitation travel switch c
(28), limitation travel switch d (35) is arranged on along guide post b (39), leading screw b (30) direction two ends；Radial meter (66), displacement
Sensor b (41) is connected on the input of the Programmable Logic Controller (47) of electric control system.
In Clamping System, in scroll chuck (7), scroll chuck (7) is by chuck seat (6) for workpiece (22) one end clamping
It is connected with main shaft (2), main shaft (2) is supported by bearing a (4) and bearing b (5), and synchronous pulley a (3) is provided with main shaft (2), is watched
Synchronous pulley b (37) is installed, Timing Belt (1) is installed in synchronous pulley a (3) and Timing Belt in the output end for taking motor c (36)
On wheel b (37)；The other end of workpiece (22) is fixed by top (18).The rotation of workpiece (22) is by servomotor c (36) by same
Step band (1) transmission drives, and servomotor c (36) is sent pulse signal to control from Programmable Logic Controller (47) to frequency converter (46)
System.
The invention has the advantages that：
1st, experimental rig of the present invention can simulate the condition of work of numerically control grinder amount instrument system, record numerically control grinder
The fault data of amount instrument, so as to calculate and evaluate the reliability level of numerically control grinder amount instrument.
2nd, experimental rig of the present invention can according to the workpiece of numerically control grinder under different rotating speeds the amount of carrying out instrument can
By property test, by Controlled by Programmable Controller frequency converter, so as to control the rotating speed of servomotor；By Programmable Logic Controller control
Servo-driver processed, controls the rotating speed of servomotor so as to the measurement position of controlled quentity controlled variable instrument.Touch-screen records measurement data automatically,
And when breaking down automatically record fault type and fault time.
3rd, the present invention, in the reliability design of numerically control grinder, is used for suitable for the reliability test of numerically control grinder amount instrument
The reliability level of evaluation amount instrument, with preferable application prospect.
Description of the drawings
Fig. 1 is the structure chart of numerically control grinder amount instrument system reliability test；
Fig. 2 is the radial meter structure chart of numerically control grinder amount instrument system reliability test；
Fig. 3 is the electric control theory figure of numerically control grinder amount instrument system reliability test；
Fig. 4 is the workpiece rotational frequency curve map of numerically control grinder amount instrument system reliability test；
Fig. 5 is the radial meter measurement frequency curve map of numerically control grinder amount instrument system reliability test；
Fig. 6 is the axial vector instrument measurement frequency curve map of numerically control grinder amount instrument system reliability test；
Fig. 7 is the radial meter measurement position curve map of numerically control grinder amount instrument system reliability test；
Fig. 8 is the axial vector instrument measurement position curve map of numerically control grinder amount instrument system reliability test；
In figure：1st, Timing Belt, 2, main shaft, 3, synchronous pulley a, 4, bearing a, 5, bearing b, 6, chuck seat, 7, scroll chuck,
8th, limitation travel switch a, 9, base a, 10, guide post a, 11, slide block a, 12, displacement transducer a, 13, gripper shoe a, 14, support
Plate b, 15, motor support plate a, 16, servomotor a, 17, shaft coupling a, 18, top, 19, limitation travel switch b, 20, origin row
Cheng Kaiguan a, 21, leading screw a, 22, workpiece, 23, hydraulic cylinder a, 24, amount instrument arm a, 25, end face positioning measuring jaw, 26, servomotor b,
27th, shaft coupling b, 28, limitation travel switch c, 29, origin travel switch b, 30, leading screw b, 31, hydraulic cylinder b, 32, amount instrument arm b,
33rd, measuring jaw, 34, diamond survey son, 35, limitation travel switch d, 36, servomotor c, 37, synchronous pulley b, 38, base b, 39,
Guide post b, 40, slide block b, 41, displacement transducer c, 42, gripper shoe c, 43, gripper shoe d, 44, motor support plate b, 45, exchange
Contacts of contactor a, 46, frequency converter, 47, Programmable Logic Controller, 48, ac contactor contact b, 49, ac contactor contact c,
50th, ac contactor contact d, 51, green light, 52, red light, 53, touch-screen, 54, servo-driver a, 55, ac contactor contact
E, 56, servo-driver b, 57, ac contactor contact f, 58, emergency stop push button, 59, SR, 60, stop button,
61st, start button, 62, radial meter switch, 63, axial vector instrument switch, 64, radial meter magnetic valve, 65, axial vector instrument electromagnetism
Valve, 66, radial meter, 67, axial vector instrument.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As Figure 1-3, electric control system includes limitation travel switch a (8), displacement transducer a (12), stroke-limit
Switch b (19), origin travel switch a (20), limitation travel switch c (28), origin travel switch b (29), limitation travel switch d
(35), displacement transducer b (41), ac contactor contact a (45), frequency converter (46), Programmable Logic Controller (47), ac contactor
Device contact b (48), ac contactor contact c (49), ac contactor contact d (50), green light (51), red light (52), touch-screen
(53), servo-driver a (54), ac contactor contact e (55), servo-driver b (56), ac contactor contact f (57),
Emergency stop push button (58), SR (59), stop button (60), start button (61), radial meter switch (62), axial direction
Amount instrument switch (63), radial meter magnetic valve (64), axial vector instrument magnetic valve (65), radial meter (66), axial vector instrument (67).
Displacement transducer a (12) on slide block a (11) surveys the particular location of size to detect axial vector instrument；Sliding
Displacement transducer b (41) on block b (40) surveys the particular location of size to detect radial meter；Meanwhile, displacement transducer a
(12) it is connected with Programmable Logic Controller (47) with displacement transducer b (41).Experimental rig is provided with start button (61), stopping and presses
Button (60), SR (59), emergency stop push button (58), green light (51), red light (52).Ac contactor contact b (48) connects
In the output end of Programmable Logic Controller (47), to control frequency converter (46) electric and dead electricity.
Whole experimental rig is controlled by Programmable Logic Controller (47), and Programmable Logic Controller (47) sends to frequency converter (46) to be believed
Number control servomotor c (36) with different rotation speed operations, so as to control workpiece (22) with different rotational speeds；Programmable control
Device (47) processed to servo-driver b (56) sending signal drives servomotor b (26) to rotate, so as to control the position of radial measurement point
Put；Programmable Logic Controller (47) to servo-driver a (54) sending signal drives servomotor a (16) to rotate, so as to control shaft
To the position of measurement point.Normal work stage, Programmable Logic Controller (47) control touch-screen (53) real time record axial vector instrument and
Data, the data of displacement transducer of radial meter measurement, and preserved, while green indicating lamp Chang Liang.Once amount instrument system
System breaks down, and Programmable Logic Controller (47) controls immediately servomotor a (16), servomotor b (26), servomotor c (36)
Shut down, red light (52) flicker.Programmable Logic Controller (47) to touch-screen (53) sends fault-signal, and touch-screen (53) is preserved
And show fault type, time of failure.After off-test, the fault message on touch-screen (53) is counted, to calculate, comment
Estimate the reliability level of numerically control grinder amount instrument.
Fig. 4 is the speed curves figure of Digit Control Machine Tool amount instrument system reliability test workpiece, by the minimum of workpiece in figure
Rotating speed to the interval of maximum speed is divided into 5 grades, respectively with n1, n2 ..., n5 represent, in test, main shaft respectively according to n1,
N2 ..., the rotating speed of n5 cover a circulation.Fig. 5 is the measurement of Digit Control Machine Tool amount instrument system reliability test radial measurement
Frequency curve chart, 5 grades are divided in figure by the interval of the low-limit frequency of radial measurement device to highest frequency, respectively with N11, N12,
N13, N14, N15 represent that in test, radial measurement device covers one according to the frequency of N11, N12, N13, N14, N15 respectively
Individual circulation.Fig. 6 is the measurement frequency curve map of Digit Control Machine Tool amount instrument system reliability test radial measurement, will be radially in figure
The low-limit frequency of measurement apparatus to the interval of highest frequency is divided into 3 grades, is represented with N21, N22, N23 respectively, in test, radially
Measurement apparatus cover a circulation according to the frequency of N21, N22, N23 respectively.Fig. 7 is Digit Control Machine Tool amount instrument system reliability test
The position measurement curve map of device radial measurement, divides the measurement position of radial measurement device between two limit switches in figure
Into 6 grades, represented with s11, s12, s13, s14, s15, s16 respectively, in test, radial measurement device respectively according to s11, s12,
The measurement position of s13, s14, s15, s16 covers a circulation.Fig. 8 is Digit Control Machine Tool amount instrument system reliability test axial direction
The measurement position curve map of measurement, 4 grades are divided in figure by the measurement position of axially measured device between two limit switches, point
Do not represented with s21, s22, s23, s24, in test, axially measured device is respectively according to the measurement position of s21, s22, s23, s24
Put and cover a circulation.
System is passed through after power supply, if slide block a (11) is not or not origin travel switch a (20) places or slide block b (40) in original
Point travel switch b (29) place, presses SR (59), Programmable Logic Controller (47) control ac contactor contact c (49) and
Ac contactor contact d (50) obtains electric, and ac contactor contact contact e (55), ac contactor contact contact f (57) are connected,
Servo-driver a (54) and servo-driver b (56) is powered.Programmable Logic Controller (47) sends reverse to servo-driver (54)
Signal, servo-driver a (54) controls servomotor a (16) reversions, slide block a (11) is moved right, and meets origin travel switch a
(20) stop when；Programmable Logic Controller (47) to servo-driver b (56) sends reverse signal, servo-driver b (56) controls
Servomotor b (26) is inverted, and slide block b (40) is moved right, and is stopped when encountering origin travel switch b (29).
Start button (61) is pressed, Programmable Logic Controller (47) control A.C. contactor (48) obtains electric, and A.C. contactor is touched
Point (45) is connected, and frequency converter (46) is powered.Programmable Logic Controller (47) to frequency converter (46) sends turn signal, frequency converter (46)
Control servomotor (36) is with the rotation speed operation of n1 in Fig. 3.Programmable Logic Controller (47) control A.C. contactor (49) obtains electric, hands over
Stream contacts of contactor (55) is connected, and servo-driver (54) is powered.Programmable Logic Controller (47) to servo-driver (54) sends
Signal, servo-driver (54) control servomotor (16) is rotated, so as to band movable slider (40) reaches the displacement s11 shown in Fig. 6,
Programmable Logic Controller (47) to hydraulic cylinder (31) sending signal, hydraulic cylinder (31) throughput instrument arm (32), measuring jaw (33) drive gold
Hard rock is surveyed sub (34) and is measured according to frequency n11, n12 in Fig. 4, n13, n14, n15 respectively.Programmable Logic Controller (47) control is handed over
Stream contactor (50) obtains electric, and ac contactor contact (57) is connected, and servo-driver (56) is powered.Programmable Logic Controller (47) to
Servo-driver (56) sending signal, servo-driver (56) control servomotor (26) is rotated, so as to band movable slider (11) is arrived
Up to the displacement s21 shown in Fig. 7, Programmable Logic Controller (47) is to hydraulic cylinder (23) sending signal, hydraulic cylinder (23) throughput instrument arm
(24) end face positioning measuring jaw (25), is driven to measure according to frequency n21, n22 in Fig. 5, n23.After measurement terminates, slide block (40) point
It is clipped to up to displacement s12, s13, s14, s15, the s16 shown in Fig. 6, slide block (11) reaches displacement s22, s23, the s24 shown in Fig. 7,
Aforesaid operations instruction is completed again.
After the completion of aforesaid operations, Programmable Logic Controller (47) control frequency converter (46), servo-driver a (54) and servo are driven
Dynamic device b (56) stops, and main shaft (2) shuts down.Programmable Logic Controller (57) control servomotor a (16) and servomotor b
(26) invert, slide block b (40) and slide block a (11) stops when moving to origin position.One circulation terminates.
After stopping a period of time, according to same rule, Programmable Logic Controller (47) control spindle motor c (36) respectively with
The rotation speed operation of n2, n3, n4, n5 in Fig. 3, completes aforesaid operations instruction.So just obtain more rotating speeds, measurement position and survey
The situation during combination, the more work of closing to reality topotype analog quantity instrument system of amount frequency.
Once in running the amount instrument system of numerically control grinder occur measuring jaw damage, amount instrument arm damage, sensor degradation,
During failure that limitation travel switch is damaged, hydraulic cylinder does not work etc., Programmable Logic Controller (47) control immediately servomotor c (36),
Servomotor a (16), servomotor b (26) shut down, while Programmable Logic Controller (47) is to touch-screen (53) sending signal,
The time of touch-screen (53) record failure and type.Then Programmable Logic Controller (47) controls servomotor a (16), servomotor
B (26) drives respectively slide block a (11), slide block b (40) to return to origin, waits the cyclic test next time after end to be repaired.Deng examination
After testing end, the data on touch-screen (53) are counted, so as to calculate the reliability with evaluation quantity instrument system.
Stop button (60), Programmable Logic Controller (47) control servomotor c (36), servo electricity are pressed in running
Machine a (16) and servomotor b (26) slows down and shuts down, then Programmable Logic Controller (47) control servomotor a (16), servo
Motor b (26) drives respectively slide block a (11), slide block b (40) to return to origin.
Emergency stop push button (58) is pressed in running, Programmable Logic Controller (47) controls servomotor c (36), watches
Take motor a (16) and servomotor b (26) shuts down immediately.After emergency is released, can be by SR (59), servo
Motor a (16), servomotor b (26) drive respectively slide block a (11), slide block b (40) to return to stopping after origin.
The above specific embodiment is used for illustrating the present invention, rather than limits the invention.At this
In bright design philosophy and scope of the claims, any modification or change are made to the present invention, be regarded as the present invention
Protection domain.
Claims (8)
1. a kind of numerically control grinder amount instrument system reliability test, it is characterised in that：The device includes mechanical control system, electricity
Gas control system；
Mechanical control system includes axially measured system, radial measurement system, Clamping System；
In axially measured system, axially measured system positions what measuring jaw (25) was realized by end face, and end face positioning measuring jaw (25) leads to
Excessive instrument arm a (24) is connected with hydraulic cylinder a (23), and controlled quentity controlled variable instrument arm (24) is driven by hydraulic cylinder a (23), hydraulic cylinder a (23) peaces
It is mounted on slide block a (11), there is screw thread in slide block a (11), slide block a (11) coordinates with leading screw a (21), guide post a (10), slide block a
(11) it is screw thread cooperation with leading screw a (21), leading screw a (21) is parallel with guide post a (10), it is ensured that slide block a (11) is along guide post a
(10) move along a straight line；Leading screw a (21) is connected by shaft coupling a (17) with servomotor a (16), leading screw a (21) and guide post a
(10) fixed by gripper shoe a (13) and gripper shoe b (14), servomotor a (16) is controlled by servo-driver a (54)；Servo electricity
Machine a (16) is fixed on base a (9) by motor support plate a (15)；Gripper shoe a (13), gripper shoe b (14) are fixed on
On base a (9)；Limitation travel switch a (19), origin stroke are respectively equipped with along the guide post a (10) and leading screw a (21) direction
Switch a (20), limitation travel switch b (8), origin travel switch a (20) for slide block a (11) initial motion position；Spacing row
Cheng Kaiguan b (8) for slide block a (11) farthest movement position；Limitation travel switch a (19), limitation travel switch b (8) are arranged on
Along guide post b (10), leading screw b (30) direction two ends；Axial vector instrument (67), displacement transducer a (12) are connected on electric control system
Programmable Logic Controller (47) input；
In radial measurement system, radial measurement is to survey sub (34) directly contact surface of the work measurement by diamond to realize, gold
Hard rock is surveyed sub (34) and is connected with amount instrument arm b (32) by measuring jaw (33), and amount instrument arm b (32) is driven by hydraulic cylinder b (31)；Hydraulic cylinder
B (31) has screw thread on slide block b (40) in slide block b (40), and slide block b (40) and leading screw b (30), guide post b (39) match somebody with somebody
Close, slide block b (40) and leading screw b (30) is screw thread cooperation, guide post b (39) is parallel with leading screw b (30), it is ensured that slide block b (40) does
Along the linear motion in guide post b (39) direction；Leading screw b (30) is connected by shaft coupling b (27) with servomotor b (26), leading screw b
(30) fixed by gripper shoe c (42) and gripper shoe d (43) with guide post b (39), servomotor b (26) is by servo-driver b
(56) control；Servomotor b (26) is fixed on base b (38) by motor support plate b (44)；Gripper shoe c (42), gripper shoe
D (43) is fixed on base b (38)；It is respectively equipped with stroke-limit and opens along the guide post b (39) and leading screw b (30) direction
C (28), origin travel switch b (29), limitation travel switch d (35) are closed, origin travel switch b (29) is the first of slide block b (40)
Beginning movement position；Limitation travel switch d (35) for slide block b (40) farthest movement position；It is limitation travel switch c (28), spacing
Travel switch d (35) is arranged on along guide post b (39), leading screw b (30) direction two ends；Radial meter (66), displacement transducer b
(41) it is connected on the input of the Programmable Logic Controller (47) of electric control system；
In Clamping System, in scroll chuck (7), scroll chuck (7) is by chuck seat (6) and master for workpiece (22) one end clamping
Axle (2) is connected, and main shaft (2) is supported by bearing a (4) and bearing b (5), and synchronous pulley a (3), servo electricity are provided with main shaft (2)
Synchronous pulley b (37) is installed, Timing Belt (1) is installed in synchronous pulley a (3) and synchronous pulley b in the output end of machine c (36)
(37) on；The other end of workpiece (22) is fixed by top (18)；The rotation of workpiece (22) is by servomotor c (36) by Timing Belt
(1) transmission drives, and servomotor c (36) is sent pulse signal to control from Programmable Logic Controller (47) to frequency converter (46).
2. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：Electric-controlled
System processed includes limitation travel switch a (8), displacement transducer a (12), limitation travel switch b (19), origin travel switch a
(20), limitation travel switch c (28), origin travel switch b (29), limitation travel switch d (35), displacement transducer b (41), friendship
Stream contacts of contactor a (45), frequency converter (46), Programmable Logic Controller (47), ac contactor contact b (48), A.C. contactor
Contact c (49), ac contactor contact d (50), green light (51), red light (52), touch-screen (53), servo-driver a (54), friendship
Stream contacts of contactor e (55), servo-driver b (56), ac contactor contact f (57), emergency stop push button (58), reset are pressed
Button (59), stop button (60), start button (61), radial meter switch (62), axial vector instrument switch (63), radial meter electricity
Magnet valve (64), axial vector instrument magnetic valve (65), radial meter (66), axial vector instrument (67)；
Displacement transducer a (12) on slide block a (11) surveys the particular location of size to detect axial vector instrument；In slide block b
(40) the displacement transducer b (41) on surveys the particular location of size to detect radial meter；Meanwhile, displacement transducer a
(12) it is connected with Programmable Logic Controller (47) with displacement transducer b (41)；Experimental rig is provided with start button (61), stopping and presses
Button (60), SR (59), emergency stop push button (58), green light (51), red light (52)；Ac contactor contact b (48) connects
In the output end of Programmable Logic Controller (47), to control frequency converter (46) electric and dead electricity.
3. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：Whole examination
Experiment device is controlled by Programmable Logic Controller (47), and Programmable Logic Controller (47) to frequency converter (46) sending signal controls servomotor
C (36) with different rotation speed operations, so as to control workpiece (22) with different rotational speeds；Programmable Logic Controller (47) is to servo
Driver b (56) sending signal drives servomotor b (26) to rotate, so as to control the position of radial measurement point；PLC technology
Device (47) to servo-driver a (54) sending signal drives servomotor a (16) to rotate, so as to control the position of axial measurement point
Put；Normal work stage, Programmable Logic Controller (47) control touch-screen (53) real time record axial vector instrument and radial meter measurement
Data, the data of displacement transducer, and preserved, while green indicating lamp Chang Liang；Once amount instrument system breaks down, can
Programmable controller (47) controls immediately servomotor a (16), servomotor b (26), servomotor c (36) and shuts down, red light
(52) flash；Programmable Logic Controller (47) to touch-screen (53) sends fault-signal, and touch-screen (53) preserves and show failure classes
Type, time of failure；After off-test, the fault message on touch-screen (53) is counted, to calculate, assess numerically control grinder amount
The reliability level of instrument.
4. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：By main shaft
Minimum speed be divided into 5 grades to the interval of maximum speed, respectively with n1, n2 ..., n5 represent, in test, main shaft respectively according to
N1, n2 ..., the rotating speed of n5 cover a circulation；The interval of the low-limit frequency of radial measurement device to highest frequency is divided into into 5
Shelves, represented with N11, N12, N13, N14, N15 respectively, in test, radial measurement device respectively according to N11, N12, N13,
The frequency of N14, N15 covers a circulation；The interval of the low-limit frequency of radial measurement device to highest frequency is divided into into 3 grades, point
Do not represented with N21, N22, N23, in test, radial measurement device is covered one and followed according to the frequency of N21, N22, N23 respectively
Ring；The measurement position of radial measurement device is divided into into 6 grades between two limit switches, respectively with s11, s12, s13, s14,
S15, s16 represent that in test, radial measurement device is walked respectively according to the measurement position of s11, s12, s13, s14, s15, s16
A complete circulation；The measurement position of axially measured device is divided into into 4 grades between two limit switches, respectively with s21, s22,
S23, s24 represent that in test, axially measured device is covered one and followed according to the measurement position of s21, s22, s23, s24 respectively
Ring.
5. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：System is led to
After entering power supply, if slide block a (11) is not in origin travel switch a (20) places or slide block b (40) in origin travel switch b (29)
Place, presses SR (59), Programmable Logic Controller (47) control ac contactor contact c (49) and ac contactor contact d
(50) obtain electric, ac contactor contact contact e (55), ac contactor contact contact f (57) are connected, servo-driver a (54)
It is powered with servo-driver b (56)；Programmable Logic Controller (47) to servo-driver (54) sends reverse signal, servo-driver
A (54) controls servomotor a (16) reversions, slide block a (11) is moved right, and is stopped when encountering origin travel switch a (20)；Can compile
Range controller (47) to servo-driver b (56) sends reverse signal, and servo-driver b (56) controls servomotor b (26) is anti-
Turn, slide block b (40) is moved right, stop when encountering origin travel switch b (29).
6. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：Press and open
Dynamic button (61), Programmable Logic Controller (47) control A.C. contactor (48) obtains electric, and ac contactor contact (45) is connected, frequency conversion
Device (46) is powered；Programmable Logic Controller (47) to frequency converter (46) sends turn signal, frequency converter (46) control servomotor
(36) with the rotation speed operation of n1；Programmable Logic Controller (47) control A.C. contactor (49) obtains electric, ac contactor contact (55)
Connect, servo-driver (54) is powered；Programmable Logic Controller (47) is to servo-driver (54) sending signal, servo-driver
(54) control servomotor (16) to rotate, so as to band movable slider (40) reaches displacement s11, Programmable Logic Controller (47) is to hydraulic cylinder
(31) sending signal, hydraulic cylinder (31) throughput instrument arm (32), measuring jaw (33) drive diamond survey sub (34) respectively frequency n11,
N12, n13, n14, n15 are measured；Programmable Logic Controller (47) control A.C. contactor (50) obtains electric, ac contactor contact (57)
Connect, servo-driver (56) is powered；Programmable Logic Controller (47) is to servo-driver (56) sending signal, servo-driver
(56) control servomotor (26) to rotate, so as to band movable slider (11) reaches displacement s21, Programmable Logic Controller (47) is to hydraulic cylinder
(23) sending signal, hydraulic cylinder (23) throughput instrument arm (24), drive end face positioning measuring jaw (25) are according to frequency n21, n22, n23
Measurement；After measurement terminates, slide block (40) arrives separately at displacement s12, s13, s14, s15, s16, slide block (11) reach displacement s22,
S23, s24, then complete aforesaid operations；
After the completion of aforesaid operations, Programmable Logic Controller (47) control frequency converter (46), servo-driver a (54) and servo-driver
B (56) stops, and main shaft (2) shuts down；Programmable Logic Controller (57) control servomotor a (16) and servomotor b (26) are anti-
Turn, slide block b (40) and slide block a (11) stops when moving to origin position；One circulation terminates.
7. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：Stop one
After the section time, according to same rule, Programmable Logic Controller (47) control spindle motor c (36) is respectively with n2, n3, n4, n5
Rotation speed operation, completes aforesaid operations；The combination of more rotating speeds, measurement position and measurement frequency is so just obtained, is more pressed close to
The practically situation during work of analog quantity instrument system.
8. a kind of numerically control grinder amount instrument system reliability test according to claim 1, it is characterised in that：Once
There is measuring jaw damage, amount instrument arm damage, sensor degradation, limitation travel switch damage in the amount instrument system of numerically control grinder in running
Bad, hydraulic cylinder do not work etc. failure when, Programmable Logic Controller (47) control immediately servomotor c (36), servomotor a (16),
Servomotor b (26) shuts down, while Programmable Logic Controller (47) is to touch-screen (53) sending signal, touch-screen (53) record
The time of failure and type；Then Programmable Logic Controller (47) control servomotor a (16), servomotor b (26) drive respectively
Slide block a (11), slide block b (40) return to origin, wait the cyclic test next time after end to be repaired；After off-test, statistics
Data on touch-screen (53), so as to calculate the reliability with evaluation quantity instrument system；
Stop button (60), Programmable Logic Controller (47) control servomotor c (36), servomotor a are pressed in running
(16) shut down with servomotor b (26) decelerations, then Programmable Logic Controller (47) control servomotor a (16), servo electricity
Machine b (26) drives respectively slide block a (11), slide block b (40) to return to origin；
Emergency stop push button (58), Programmable Logic Controller (47) control servomotor c (36), servo electricity are pressed in running
Machine a (16) and servomotor b (26) shut down immediately；After emergency is released, can be by SR (59), servomotor
A (16), servomotor b (26) drive respectively slide block a (11), slide block b (40) to return to stopping after origin.
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| CN85104898A (en) * | 1985-06-24 | 1985-12-20 | 西安交通大学 | Cylindrical grinding fibre-optic measurement mechanism on line |
| KR100910383B1 (en) * | 2008-12-11 | 2009-08-04 | 신은철 | Freeze testing apparatus for ground |
| CN202622493U (en) * | 2012-05-15 | 2012-12-26 | 四川省宜宾普什汽车零部件有限公司 | On-line measuring instrument for crankshaft grinding machine |
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| CN85104898A (en) * | 1985-06-24 | 1985-12-20 | 西安交通大学 | Cylindrical grinding fibre-optic measurement mechanism on line |
| KR100910383B1 (en) * | 2008-12-11 | 2009-08-04 | 신은철 | Freeze testing apparatus for ground |
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