CN203811396U - Reliability test device for numerical control grinding machine headstock - Google Patents
Reliability test device for numerical control grinding machine headstock Download PDFInfo
- Publication number
- CN203811396U CN203811396U CN201420028639.6U CN201420028639U CN203811396U CN 203811396 U CN203811396 U CN 203811396U CN 201420028639 U CN201420028639 U CN 201420028639U CN 203811396 U CN203811396 U CN 203811396U
- Authority
- CN
- China
- Prior art keywords
- headstock
- test
- programmable logic
- logic controller
- reliability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 238000013461 design Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model relates to a reliability test device for a numerical control grinding machine headstock. The device can simulate various different working conditions of the numerical control grinding machine headstock. A servo motor drives the headstock to operate for different times at different speeds. Failure data in operation processes is recorded. Through the failure data, reliability level of the numerical control grinding machine headstock is calculated and evaluated. A reliability test of the numerical control grinding machine headstock is mainly a test for reliability, when a center clamps a work piece, and hysteresis of rotating speed of the clamped work piece. Because work conditions of the headstock, during an actual operating process, are unknown and random, the test device is designed for being capable of simulating these random working conditions. The utility model is suitable for the reliability test of the numerical control grinding machine headstock. During a reliability design of a numerical control grinding machine, the test device can be used for evaluating the reliability level of the headstock. The test device has a good application prospect.
Description
Technical field
The utility model relates to a kind of test unit that is used for evaluating numerically control grinder headstock reliability, belongs to Precision Manufacturing Technology and industrial automatic control field.
Background technology
Numerically control grinder is widely used in machining manufacturing industry, utilizes numerical control program control driven by servomotor wheel grinding axle class, plane, and in the time of grinding raised wheel shaft, bent axle, the grinding machine headstock also needs to drive camshaft or bent axle and emery wheel feeding to keep interlock.Numerically control grinder is generally last procedure of precision component processing, so the precision that the quality of numerically control grinder performance and the height of reliability are processed part and the efficiency of processing have important impact.
The lathes such as numerical control axle class grinding machine, digital-control camshaft grinding machine and numerical control crankshaft grinder include the headstock, and the Main Function of the headstock is to coordinate holding workpiece and drive workpiece to rotate with tailstock.In numerically control grinder operational process, the headstock exists holding workpiece shakiness, drives the rotating speed of part to lag behind the problem such as the sharp decentraction of tail of top and the tailstock of top rotating speed, the headstock.
In order to improve the reliability of numerically control grinder, conventionally need to gather the fault data of numerically control grinder, the mean free error time of then calculating numerically control grinder.In the time of design numerically control grinder, in order to improve the reliability of numerically control grinder complete machine, need to select the parts that reliability is high, and want to understand the reliability level of parts, must carry out fail-test.
The headstock of numerically control grinder is one of vitals of numerically control grinder, wants to promote the reliability of the headstock, need to carry out fail-test to the headstock.The speed difference of the headstock in operational process, the also difference of Workpiece length of clamping, the time of holding workpiece rotation is not identical yet, so test unit must be able to be simulated these different working conditions, the operating fault of the adherence controlled grinder headstock, for the reliability of the assessment numerically control grinder headstock provides data.
Numerically control grinder seldom carries out fail-test to the headstock in the time of design at present, the one, lack test unit, the 2nd, lack the thought that part reliability designs, and the enterprise that produces the headstock also seldom carries out fail-test, cause the reliability basic data of the numerically control grinder headstock little, designer cannot hold the reliability level of the numerically control grinder headstock.
For the above, the designed numerically control grinder headstock reliability test of the utility model can be simulated the various operating mode of numerically control grinder, the headstock moves the different time with different speed, driving workpiece, record the fault data in operational process, calculate, evaluate the reliability level of the numerically control grinder headstock by these data.
Summary of the invention
The purpose of this utility model is to provide a kind of reliability test of the numerically control grinder headstock, this device can be simulated the various operating mode of the numerically control grinder headstock, the driven by servomotor headstock turns round the different time with different speed, record the fault data in operation process, calculate, evaluate the reliability level of the numerically control grinder headstock by these data.It is mainly to carry out fail-test for the hysteresis of the reliability of top holding workpiece and the rotating speed of clamping workpiece in fact that the numerically control grinder headstock is carried out to fail-test, because the condition of work of the headstock in real work is unknown, random, in order to simulate this random operating mode, designed test unit can be simulated this random condition of work.
For achieving the above object, the technical solution adopted in the utility model is a kind of numerically control grinder headstock reliability test, and this test unit comprises mechanical structure system and electric control system; Test method comprises data acquisition and processing (DAP) method, the top velocity of rotation of driven by servomotor and the control method of working time.
The mechanical structure system of this test unit comprises base, the headstock, top, test specimen, gear a, holding screw a, tail point, tailstock, slide block a, guide rail a, guide rail b, rotating shaft, bearing (ball) cover, bearing, slide block b, gear b, holding screw b, shaft coupling; The headstock is arranged on base, and test specimen is installed in the middle of the tail point on the top and tailstock on the headstock, and test specimen is provided with gear a with one end that tail point contacts, and gear a is fixed on test specimen by holding screw a; It is upper that tailstock is arranged on slide block a, and slide block a can slide on guide rail a, and guide rail a is arranged on base; On a wing base of test specimen, guide rail b is installed, slide block b is installed on guide rail b; In the middle of slide block b, be provided with through hole, bearing is installed in through hole, bearing coordinates with rotating shaft, and bearing one end is provided with bearing (ball) cover; Gear b is installed in rotating shaft, and gear b is fixed in rotating shaft by holding screw b, and the right-hand member of rotating shaft is connected with scrambler by shaft coupling;
The electric control system of this test unit comprises servomotor, displacement transducer, scrambler, ac contactor contact, servo-driver, Programmable Logic Controller, A.C. contactor, green indicating lamp, red led, touch-screen, start button, stop button, emergency stop push button, servomotor drives top rotation by Timing Belt, servomotor is connected with servo-driver, on the power lead of servo-driver, be connected with ac contactor contact, the control end of servo-driver is connected to Programmable Logic Controller, each displacement transducer is arranged on respectively two ends and the centre position of test specimen, and maintain a certain distance with test specimen, the signal wire of displacement transducer is connected to the input end of Programmable Logic Controller, start button, stop button and emergency stop push button are connected to the input end of Programmable Logic Controller, the signal wire of scrambler is connected to the input end of Programmable Logic Controller, A.C. contactor, green indicating lamp and red led are connected to the output terminal of Programmable Logic Controller, touch-screen is connected with the communication port of Programmable Logic Controller by signal wire.
Compared with prior art, the utlity model has following beneficial effect.
1, test unit described in the utility model can be simulated the condition of work of the numerically control grinder headstock, records the fault data of the numerically control grinder headstock, thereby calculates and evaluate the reliability level of the numerically control grinder headstock.
2, test unit described in the utility model can be tested according to the headstock of different numerically-controlled machines, only need to change simply servo-driver, and pressing after start button, system is automatically according to predetermined speed and time operation, middle without manual operation, automatic record trouble data in the time breaking down.
The utility model is applicable to the fail-test of the numerically control grinder headstock, in the time of the reliability design of numerically control grinder, can be used for evaluating the reliability level of the headstock, has good application prospect.
Brief description of the drawings
Fig. 1 is the machine construction principle figure vertical view of numerically-controlled machine headstock reliability test.
Fig. 2 is the machine construction principle figure front elevation of numerically-controlled machine headstock reliability test.
Fig. 3 is the electric control theory figure of numerically-controlled machine headstock reliability test.
Fig. 4 is the speed curves figure of numerically-controlled machine headstock reliability test test specimen.
Fig. 5 is the workflow diagram of numerically-controlled machine headstock reliability test.
In figure: 1, base, 2, the headstock, 3, servomotor, 4, top, 5, test specimen, 6, displacement transducer, 7, gear a, 8, holding screw a, 9, tail point, 10, tailstock, 11, slide block a, 12, guide rail a, 13, guide rail b, 14, rotating shaft, 15, bearing (ball) cover, 16, bearing, 17, slide block b, 18, gear b, 19, holding screw b, 20, shaft coupling, 21, scrambler, 22, ac contactor contact, 23, servo-driver, 24, Programmable Logic Controller, 25, A.C. contactor, 26, green indicating lamp, 27, red led, 28, touch-screen, 29, start button, 30, stop button, 31, emergency stop push button.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As Figure 1-4, a kind of reliability test of the numerically control grinder headstock, this test unit comprises mechanical structure system and electric control system; Test method comprises data acquisition and processing (DAP) method, the top velocity of rotation of driven by servomotor and the control method of working time.
The mechanical structure system of this test unit comprises base 1, the headstock 2, top 4, test specimen 5, gear a7, holding screw a8, tail point 9, tailstock 10, slide block a11, guide rail a12, guide rail b13, rotating shaft 14, bearing (ball) cover 15, bearing 16, slide block b17, gear b18, holding screw b19, shaft coupling 20; The headstock 2 is arranged on base 1, in the middle of the tail point 9 on top 4 on the headstock 2 and tailstock 10, test specimen 5 is installed, and test specimen 5 is provided with gear a7 with tail point 9 one end that contact, and gear a7 is fixed on test specimen 5 by holding screw a8; It is upper that tailstock 10 is arranged on slide block a11, and slide block a11 can slide on guide rail a12, and guide rail a12 is arranged on base 1; On a wing base 1 of test specimen 5, guide rail b13 is installed, slide block b17 is installed on guide rail b13; In the middle of slide block b17, be provided with through hole, bearing 16 is installed in through hole, bearing 16 coordinates with rotating shaft 14, and bearing 16 one end are provided with bearing (ball) cover 15; Gear b18 is installed in rotating shaft 14, and gear b18 is fixed in rotating shaft 14 by holding screw b19, and the right-hand member of rotating shaft 14 is connected with scrambler 21 by shaft coupling 20;
The electric control system of this test unit comprises servomotor 3, displacement transducer 6, scrambler 21, ac contactor contact 22, servo-driver 23, Programmable Logic Controller 24, A.C. contactor 25, green indicating lamp 26, red led 27, touch-screen 28, start button 29, stop button 30, emergency stop push button 31, servomotor 3 drives top 4 to rotate by Timing Belt, servomotor 3 is connected with servo-driver 23, on the power lead of servo-driver 23, be connected with ac contactor contact 22, the control end of servo-driver 23 is connected to Programmable Logic Controller 24, each displacement transducer 6 is arranged on respectively two ends and the centre position of test specimen 5, and maintain a certain distance with test specimen 5, the signal wire of displacement transducer 6 is connected to the input end of Programmable Logic Controller 24, start button 29, stop button 30 and emergency stop push button 31 are connected to the input end of Programmable Logic Controller 24, the signal wire of scrambler 21 is connected to the input end of Programmable Logic Controller 24, A.C. contactor 25, green indicating lamp 26 and red led 27 are connected to the output terminal of Programmable Logic Controller 24, touch-screen 28 is connected with the communication port of Programmable Logic Controller 24 by signal wire.
Test unit should be clamped in test specimen 5 on the tail point 9 of top 9 and tailstock 10 of the headstock 2 before operation, and locks tail point 9 and slide block a11; Slide block a11 is adjusted to gear a7 and gear b18 engagement, then locking sliding block b17, set-up procedure finishes; Test unit is controlled by Programmable Logic Controller 24, after system energising, and green indicating lamp bright 26.
Press start button 29, Programmable Logic Controller 24 is controlled A.C. contactor 25 and is switched on, ac contactor contact 22 closures, and servo-driver 23 is switched on; In order to simulate more really the working condition of the headstock, be provided with from small to large ten kinds of rotating speeds in Programmable Logic Controller 24 inside; Press after start button 29, Programmable Logic Controller 24 is to servo-driver 23 transmitted signals, and servo-driver 23 drives servomotor 3 with the first rotation speed n
1rotate, servomotor 3 drives top 4 to rotate together, and top 4 drive test specimen 5 to rotate; Rotate after a period of time, servomotor 3 stops; Stop after a period of time, Programmable Logic Controller 24 is to servo-driver 23 transmitted signals, and servomotor is with the second rotation speed n
2running, stopped after running a period of time, stopped after a period of time, again started with the third rotation speed n
3operation; Circular flow successively, when the tenth kind of rotation speed n
10after operation, then from the first rotation speed n
1start circular flow always; Test unit is in operational process, and green indicating lamp 26 glimmers.
In test specimen 5 rotation processes, scrambler 21 sends the angular signal of test specimen 5 to Programmable Logic Controller 24 on the one hand, Programmable Logic Controller 24 judges the difference between the pulse signal that pulse signal that scrambler 21 is inputted and Programmable Logic Controller 24 send to servo-driver 23 by calculating, exceed once this difference the deviation that the headstock 2 allows, Programmable Logic Controller 24 sends stop signal to servo-driver 23 immediately, servomotor 3 slows down and shuts down, while Programmable Logic Controller 24 is controlled red led 27 and is glimmered, the time of touch-screen 28 record troubles also preserves, on the other hand, by test specimen 5, the distance signal in rotation process and between displacement transducer 6 sends Programmable Logic Controller 24 to displacement transducer 6, Programmable Logic Controller 24 is received after these signals, judge by calculating whether the distance of test specimen 5 disalignments exceeds the permissible value of the headstock 2, once exceed permissible value, Programmable Logic Controller 24 sends stop signal to servo-driver 23 immediately, servomotor 3 slows down and shuts down, while Programmable Logic Controller 24 is controlled red led 27 and is glimmered, the time of touch-screen 28 record troubles also preserves, to carry out the calculating of the headstock 2 reliabilities after test.
If realizing this test unit in operational process quits work, can press stop button 30, Programmable Logic Controller 24 sends stop signal to servo-driver 23 immediately, and servomotor 3 slows down and shuts down, and it is bright that while Programmable Logic Controller 24 is controlled red led 27.
While having emergency condition to occur in operational process, press emergency stop push button 31, Programmable Logic Controller 24 sends stop signal to servo-driver 23 immediately, and servomotor 3 shuts down immediately, and Controlled by Programmable Controller 24 red leds 27 glimmer simultaneously.
Touch-screen 28 can control system operation and display system, on touch-screen 28, be designed with start button 29, stop button 30, emergency stop push button 31, the effect of start button 29, stop button 30, emergency stop push button 31 with the startup of numerically control grinder, stop, the effect of emergency stop push button is identical; On touch-screen 28, be designed with green indicating lamp 26 and red led 27, it is identical with the pilot lamp of numerically control grinder that its state shows; In the time that test unit breaks down, touch-screen 28 can show fault type, fault-time, and is kept on touch-screen 28, after off-test, can add up fault data, as the foundation of calculating, evaluate Servo System of CNC Machine Tool reliability.
Fig. 5 is the speed curves figure of numerically-controlled machine headstock reliability test test specimen, in figure, the minimum speed of the headstock is divided into 10 grades to the interval of maximum speed, uses respectively n
1, n
2..., n
10represent, in test, the headstock is respectively according to n
1→ n
2..., n
9→ n
10rotating speed cover a circulation, and then restart.
The above embodiment is used for the utility model of explaining, instead of the utility model is limited.In the protection domain of design philosophy of the present utility model and claim, the utility model is made to any amendment or change, all should be considered as protection domain of the present utility model.
Claims (2)
1. a numerically control grinder headstock reliability test, is characterized in that: this test unit comprises mechanical structure system and electric control system;
The mechanical structure system of this test unit comprises base (1), the headstock (2), top (4), test specimen (5), gear a (7), holding screw a (8), tail point (9), tailstock (10), slide block a (11), guide rail a (12), guide rail b (13), rotating shaft (14), bearing (ball) cover (15), bearing (16), slide block b (17), gear b (18), holding screw b (19), shaft coupling (20); The headstock (2) is arranged on base (1), test specimen (5) is installed in the middle of the tail point (9) on top (4) and tailstock (10) on the headstock (2), one end that test specimen (5) contacts with tail point (9) is provided with gear a (7), and gear a (7) is fixed on test specimen (5) by holding screw a (8); It is upper that tailstock (10) is arranged on slide block a (11), and slide block a (11) can be in the upper slip of guide rail a (12), and guide rail a (12) is arranged on base (1); On a wing base (1) of test specimen (5), guide rail b (13) is installed, slide block b (17) is installed on guide rail b (13); In the middle of slide block b (17), be provided with through hole, bearing (16) is installed in through hole, bearing (16) coordinates with rotating shaft (14), and bearing (16) one end is provided with bearing (ball) cover (15); Gear b (18) is installed in rotating shaft (14), it is upper that gear b (18) is fixed on rotating shaft (14) by holding screw b (19), and the right-hand member of rotating shaft (14) is connected with scrambler (21) by shaft coupling (20);
The electric control system of this test unit comprises servomotor (3), displacement transducer (6), scrambler (21), ac contactor contact (22), servo-driver (23), Programmable Logic Controller (24), A.C. contactor (25), green indicating lamp (26), red led (27), touch-screen (28), start button (29), stop button (30), emergency stop push button (31), servomotor (3) drives top (4) to rotate by Timing Belt, servomotor (3) is connected with servo-driver (23), on the power lead of servo-driver (23), be connected with ac contactor contact (22), the control end of servo-driver (23) is connected to Programmable Logic Controller (24), each displacement transducer (6) is arranged on respectively two ends and the centre position of test specimen (5), and maintain a certain distance with test specimen (5), the signal wire of displacement transducer (6) is connected to the input end of Programmable Logic Controller (24), start button (29), stop button (30) and emergency stop push button (31) are connected to the input end of Programmable Logic Controller (24), the signal wire of scrambler (21) is connected to the input end of Programmable Logic Controller (24), A.C. contactor (25), green indicating lamp (26) and red led (27) are connected to the output terminal of Programmable Logic Controller (24), touch-screen (28) is connected with the communication port of Programmable Logic Controller (24) by signal wire.
2. a kind of numerically control grinder headstock reliability test according to claim 1, it is characterized in that: operation and display system that touch-screen (28) can control system, on touch-screen (28), be designed with start button (29), stop button (30), emergency stop push button (31), the effect of start button (29), stop button (30), emergency stop push button (31) with the startup of numerically control grinder, stop, the effect of emergency stop push button is identical; On touch-screen (28), be designed with green indicating lamp (26) and red led (27), it is identical with the pilot lamp of numerically control grinder that its state shows; In the time that test unit breaks down, touch-screen (28) can show fault type, fault-time, and is kept on touch-screen (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028639.6U CN203811396U (en) | 2014-01-16 | 2014-01-16 | Reliability test device for numerical control grinding machine headstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028639.6U CN203811396U (en) | 2014-01-16 | 2014-01-16 | Reliability test device for numerical control grinding machine headstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811396U true CN203811396U (en) | 2014-09-03 |
Family
ID=51450132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420028639.6U Expired - Lifetime CN203811396U (en) | 2014-01-16 | 2014-01-16 | Reliability test device for numerical control grinding machine headstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759960A (en) * | 2014-01-16 | 2014-04-30 | 北京工业大学 | Device for testing reliability of numerical control grinder workhead |
| CN109445278A (en) * | 2018-12-24 | 2019-03-08 | 苏州幕特克自动化设备有限公司 | A kind of PID control button test machine based on ILAC standard |
-
2014
- 2014-01-16 CN CN201420028639.6U patent/CN203811396U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759960A (en) * | 2014-01-16 | 2014-04-30 | 北京工业大学 | Device for testing reliability of numerical control grinder workhead |
| CN103759960B (en) * | 2014-01-16 | 2016-04-06 | 北京工业大学 | A kind of numerically control grinder headstock reliability test |
| CN109445278A (en) * | 2018-12-24 | 2019-03-08 | 苏州幕特克自动化设备有限公司 | A kind of PID control button test machine based on ILAC standard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103743567B (en) | A kind of grinding wheel of numerical control grinding machine main shaft reliability test | |
| CN103759960B (en) | A kind of numerically control grinder headstock reliability test | |
| CN105690183B (en) | A kind of monitoring device and its monitoring method of numerical control milling cutter abnormal operation | |
| CN204123094U (en) | Drilling-tapping equipment integrating | |
| CN105458330A (en) | Self-adaption control system and method for cutting of deep hole boring machine | |
| CN203610909U (en) | Automatic cylindrical face welding frame | |
| CN203811396U (en) | Reliability test device for numerical control grinding machine headstock | |
| CN110340664A (en) | A kind of automatic multi-station valve drilling and tapping compounding machine | |
| CN202002811U (en) | Reliability test-bed for rotary table of horizontal machining center | |
| CN103728920A (en) | Numerical control machine tool servo system reliability test device | |
| CN205342002U (en) | Deep -hole drilling and boring machine cuts adaptive control system | |
| CN205325468U (en) | Motor rotation number measuring device of numerically control grinder | |
| CN106181386B (en) | A kind of continous drilling machine | |
| US8453545B2 (en) | Machine tool and machining method thereof | |
| CN210435835U (en) | Quick verifying attachment of wheel lathe reliability axis feeding loading | |
| TWM485116U (en) | Quick automatic tool selection and tool change system | |
| CN204851856U (en) | Numerically control grinder hydraulic system reliability test device | |
| CN104493298A (en) | Rotary-type part hole chamfer processing equipment and rotary-type part hole chamfer processing method | |
| CN203485198U (en) | Drill bit taking and placing module | |
| CN104989703A (en) | Testing device for reliability of numerical control grinder hydraulic system | |
| CN104786149B (en) | Reliability testing device of numerical control grinder measuring instrument system | |
| Xu et al. | Monitoring and source tracing of machining error based on built-in sensor signal | |
| CN104669061B (en) | A kind of lathe ultrasonic testing system and method | |
| CN204277115U (en) | The process equipment of rotary part Hole chamfering | |
| CN203720649U (en) | Automatic test system for motor brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |