CN102435157A - Comprehensive checkout stand for high-speed hydraulic power chuck - Google Patents
Comprehensive checkout stand for high-speed hydraulic power chuck Download PDFInfo
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- CN102435157A CN102435157A CN2011104039793A CN201110403979A CN102435157A CN 102435157 A CN102435157 A CN 102435157A CN 2011104039793 A CN2011104039793 A CN 2011104039793A CN 201110403979 A CN201110403979 A CN 201110403979A CN 102435157 A CN102435157 A CN 102435157A
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Abstract
The invention discloses a comprehensive checkout stand for a high-speed hydraulic power chuck. The comprehensive checkout stand comprises a numerical control machine system, a hydraulic system and a data detection system, wherein the numerical control machine system comprises a checkout stand body, the checkout stand body is connected with a spindle box, a transmission spindle is arranged in the spindle box, and the transmission spindle is connected with a servo control system; the hydraulic system comprises a rotating oil cylinder, a power chuck, a water cooling machine, a hydraulic unit, and an oil cooling machine, the rotating oil cylinder and the power chuck are respectively arranged at two ends of the transmission spindle, the water cooling machine is connected with the transmission spindle, and the hydraulic unit is respectively connected with the rotating oil cylinder and the oil cooling machine; and the data detection system comprises a laser displacement sensing device and a clamp force sensing device, the laser displacement sensing device is connected with a control computer through a data acquisition card, and the clamp force sensing device is connected with the control computer. The comprehensive checkout stand for the high-speed hydraulic power chuck has a simple structure, is convenient to operate and can accurately measure high-speed clamp precision, repeatability precision, clamp force and limit speed of the hydraulic power chuck.
Description
Technical field
The invention belongs to hydraulic power chuck checkout equipment technical field, be specifically related to a kind of measurement mechanism of hydraulic power chuck high speed clamping precision, repeatable accuracy, clamping force and the limit speed of different specification size.
Background technology
Along with the development of High-speed Machining Technology, hydraulic power chuck is shown one's talent from pneumatic motive force chuck and electric-powered chuck, becomes the main flow anchor clamps of high speed numerically-controlled machine.Hydraulic power chuck is combined as a whole hydraulic transmission technology and self-centering chuck technology, utilizes the big characteristics of hydrostatic transmission power density ratio, has advantages such as clamping force is big, rotating speed is high, compact conformation.Hydraulic power chuck has obtained using very widely in numerically-controlled machine, has become the requisite basic functional part in high speed numerically controlled lathe, numerically control grinder and numerical-control turn-milling center.
Yet, to compare and high-speed milling and grinding, high-speed turning is not widely used in batch process.This main cause is in continuous high-speed cutting, can't guarantee safety and gripper chuck clamping system flexibly effectively.Reason generation chucks such as in use axial line is eccentric because of taking place for the gripper chuck clamping system, workpiece clamp is not tight, parts fracture lost efficacy, and the high rotating speed rotation of gripper chuck clamping system, had stored a large amount of reasons such as kinetic energy.Insufficient clamping force causes the inefficacy of gripper chuck clamping system, can cause the workpiece chuck that flies out to damage machine and harm operator.A statistics shows that at metal industry, at least 10% accident injury is to be caused by gripper chuck clamping system fault.Obviously, the gripper chuck clamping system is the weak link of lathe, and the realization of restriction high speed rotating.
At present, domestic also do not have a perfect high-speed hydraulic power chuck checkout equipment.Aspect the measurement of chuck clamping precision, traditional approach is behind the clamping test rod, beats to measure it less than low speed rotation 360 degree of 60 commentaries on classics per minutes in the several times length part of its diameter of axle, can't measure check rod beating in the high speed rotating process; And traditional approach is to obtain jitter values through contact type measurement, when measuring, is easy to generate the friction abrasion, influences measuring accuracy.
Summary of the invention
Goal of the invention: the objective of the invention is to solve the problems of the technologies described above; A kind of simple in structure, easy to operate hydraulic power chuck comprehensive test platform is provided, is convenient to high speed clamping precision, repeatable accuracy, clamping force and the limit speed of hydraulic power chuck are accurately measured.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of high-speed hydraulic power chuck comprehensive test platform, it comprises numerically-controlled machine tool system, hydraulic system and data detection system; Said numerically-controlled machine tool system comprises the check-out console body, and said check-out console body is connected with main spindle box, in the said main spindle box transmission main shaft is housed, and said transmission main shaft comprises common main shaft and electric main shaft; Angling cylinder and big power chuck are separately fixed at the two ends of common main shaft, and No. two angling cylinders and low-power chuck are separately fixed at the two ends of electric main shaft; Common main shaft also with respectively is connected with servo-control system with electric main shaft; Said hydraulic system comprise be respectively big power chuck, the low-power chuck provides an angling cylinder of power, No. two angling cylinders; Said water chiller connects electric main shaft; Said Hydraulic Station connects an angling cylinder and No. two angling cylinders respectively, and said oily cooler connects Hydraulic Station; Said data detection system comprises laser displacement sensing device and clamping force sensing device, and said laser displacement sensing device is through data acquisition card connection controlling computer; The clamping force sensing device links to each other with controlling computer through data line.
Said laser displacement sensing device comprises laser measurement head bracket and the laser measuring head control box that is fixed on the check-out console body; Said laser measurement head bracket is provided with laser measuring head, and said laser measuring head connects data collecting card through the laser measuring head control box; Said laser measuring head control box connects servo-control system.
The laser measurement head bracket comprises the support spindle rod, and said support spindle rod is fixed on the check-out console body through first magnetic bases; On the support spindle rod, be fixed with and slide up and down bar, slide up and down bar and be provided with the through hole that the bar that can supply to horizontally slip passes through locking switch; The end of bar of horizontally slipping passes the through hole that slides up and down on the bar, and the other end is fixed on the vertical bar; The upper end that slides up and down bar is fixed with clamping screw, and the other end of clamping screw passes vertical bar, and logical set nut is fixed; The said upper end that slides up and down bar and vertical bar is respectively equipped with clamping plate, and described laser measuring head is fixed between the clamping plate.
Said clamping force sensing device comprises clamping force measuring head, tachometric survey magnetism stick, magnetism stick support and handheld unit; Said clamping force measuring head is fixed in the power chuck to be measured; Said tachometric survey magnetism stick is fixed on the magnetism stick support, and the bottom of magnetism stick support is fixed on the check-out console body through second magnetic bases; The magnetic induction point of tachometric survey magnetism stick is aimed at the clamping head measuring head, is wireless connections between said clamping head measuring head and the handheld unit, and handheld unit connects controlling computer through data line.
Be provided with safty shield around the said check-out console body; The thickness of said safty shield is greater than 5mm.
Beneficial effect: the present invention combines numerical control machine tool technique and sensing technology; Can realize the measurement of high-speed hydraulic power chuck high speed clamping precision, repeatable accuracy, clamping force and limit speed; All measurement data all can show through controlling computer in real time, read measurement result easily; The present invention is simple to operate, and measuring accuracy is high, and the part of having filled up high-speed hydraulic power chuck Performance Detection is blank, is with a wide range of applications.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the Facad structure synoptic diagram of laser head measurement bracket.
Fig. 3 is the side structure synoptic diagram of laser head measurement bracket.
Fig. 4 is the structural representation of tachometric survey magnetic bracket.
Fig. 5 is limit speed and clamping force curve map.
Embodiment:
Below in conjunction with accompanying drawing explanation is further done in invention.
Shown in Fig. 1 to 4, a kind of hydraulic power chuck comprehensive test platform of the present invention comprises numerically-controlled machine tool system, hydraulic system and data detection system.
Numerically-controlled machine tool system comprises check-out console body 1, and check-out console body 1 is provided with main spindle box 2, in the said main spindle box 2 transmission main shaft is housed, the requirement of different rotating speeds when measuring in order to adapt to, and transmission main shaft comprises common main shaft 9 and electric main shaft 10.Common main shaft 9 provides powered rotation by motor (not drawing among the figure), and electric main shaft 10 self can provide powered rotation.Angling cylinder 11 and big power chuck 13 are separately fixed at the two ends of common main shaft 9, and the rotating speed of big power chuck 13 is slow, and (general rotating speed is 25～4500r/min); No. two angling cylinders 12 and low-power chuck 14 are separately fixed at the two ends of electric main shaft 10, and the rotating speed of low-power chuck 14 is higher, and (general rotating speed is 4000～8000r/min); Common main shaft 9 also is connected with servo-control system 3 with electric main shaft 10.
Wherein, said big power chuck 13 is meant the power chuck of nominal diameter at φ 250-φ 400mm, and low-power chuck 14 is meant the power chuck of nominal diameter φ at 110-φ 210mm.
Described hydraulic system comprises that being respectively big power chuck 13, low-power chuck 14 provides the angling cylinder 11 of power, No. two angling cylinders 12, the safeguard measure of short time pressurize when angling cylinder possesses the sudden power situation.Said water chiller 4 connects electric main shaft 10, for it provides cooling; Said Hydraulic Station 5 connects angling cylinder 11, No. two angling cylinders 12 and oily coolers 6 respectively, and oily cooler 6 provides cooling for Hydraulic Station 5.
Said laser displacement sensing device connects controlling computer 8 through data collecting card 7; The clamping force sensing device links to each other with controlling computer 8 through data line.
Wherein, Said laser displacement sensing device comprises the laser measurement head bracket 16 and laser measuring head control box 17 that is fixed on the check-out console body 1; Be fixed with laser measuring head 18 on the said laser measurement head bracket 16; Said laser measuring head 18 connects data collecting card 7 through laser measuring head control box 17, and data collecting card 7 connects controlling computer 8; Said laser measuring head control box 17 connects servo-control system 3.
Laser measurement head bracket 16 comprises support spindle rod 19, and said support spindle rod 19 is fixed on the check-out console body 1 through first magnetic bases 20; On support spindle rod 19, be fixed with and slide up and down bar 21 through locking switch.Described locking switch comprises that an end is provided with the threaded rod greater than the through hole that slides up and down bar 21 diameters, and the threaded rod other end is provided with hold-down nut.Unclamp hold-down nut, sliding up and down bar 21 can freely move up and down in the through hole of threaded rod, and then adjustment is fixed on the upper-lower position of the laser measuring head 18 that slides up and down on the bar 21.
The upper end that slides up and down bar 21 is provided with the through hole that the bar 22 that can supply to horizontally slip passes.The end of bar 22 of horizontally slipping passes the through hole that slides up and down on the bar 21, and the other end is fixed on the vertical bar 23; The upper end that slides up and down bar 21 is fixed with clamping screw, and the other end of clamping screw passes vertical bar 23, and logical set nut is fixed; The said upper end that slides up and down bar 21 and vertical bar 23 is respectively equipped with a clamping plate 24, and described laser measuring head 18 is fixed between two clamping plates 24.Unclamp set nut, two clamping plates were opened in 24 minutes, then laser measuring head 18 were put between two clamping plates 24, tightened set nut, just fixed laser measuring head 18.
Said clamping force sensing device comprises clamping force measuring head 25, tachometric survey magnetism stick 26, magnetism stick support 27 and handheld unit 28.Clamping force measuring head 25 is installed in the power chuck to be measured, and said tachometric survey magnetism stick 26 is fixed on the magnetism stick support 27, and the bottom of magnetism stick support 27 is fixed on the check-out console body 1 through second magnetic bases 29.During use, the magnetic induction point of tachometric survey magnetism stick 26 is aimed at clamping head measuring head 25 get final product, be wireless connections between said clamping force measuring head 25 and the handheld unit 28, handheld unit 28 connects controlling computer 8 through data line.Clamping force measuring head 25 wherein, tachometric survey magnetism stick 26 and handheld unit 28 are parts of the clamping force tester that can buy on the market.
Through two magnetic bases, laser measurement head bracket 16 and magnetism stick support 27 can be simple and easy, easily laser measuring head 18 and tachometric survey magnetism stick 26 are installed on any position on the check-out console body 1, are convenient to the test adjustment.
Adopt this comprehensive test platform to be to the measuring process that hydraulic power chuck carries out high speed clamping precision, repeatable accuracy, clamping force and limit speed:
1) in big power chuck 13 that needs detect or low-power chuck 14, clamps check rod 30.
2) clamping plate 24 horizontal fixed of laser measuring head 18 being passed through on the laser measurement head bracket 16; Adjustment slides up and down bar 21, makes the axis of the laser emission point height alignment check rod 30 on the laser measuring head 18; After height control finishes; Move the position of laser measurement head bracket 16 by People's Republic of China's machinery industry standard to check point; When check point position and laser measuring head 18 radial distances the best; Pilot lamp on the laser measuring head 18 shows green, rotates the magnetic switch on first magnetic bases 20, and laser measurement head bracket 16 is fixed on the check-out console body 1.
3) start measuring head control box 17 and controlling computer 8, open control corresponding software in the controlling computer 8, check rod 30 is repeated 3～5 dismounting.Measure the variable quantity of the check rod 30 central axis position in the process of rotating a few under each clamping situation; Near the displacement of laser measurement 18 be on the occasion of; Away from laser measuring head 18 is negative value, get displacement on the occasion of with the absolute value of negative value in maximal value, i.e. its maximum jitter amount; After relatively repeating dismounting 3～5 times, rotate the maximum jitter amount that records in a few the process, wherein maximum value is its repeatable accuracy at every turn; Then; Through servo-control system 3, make common main shaft 9 or electric main shaft 10 high speed rotating, the displacement signal of the central axis change in location of the check rod 30 that laser measuring head 18 collects constantly shows in controlling computer 8 through laser measuring head control box 17, data collecting card 7 in real time; Be the displacement curve of cyclical fluctuations figure in time that controlling computer 8 can show check rod 30 central axis in real time; Same, near the displacement of laser measuring head 18 be on the occasion of, away from laser measuring head 18 is negative value; Get displacement on the occasion of with the absolute value of negative value in maximal value, be high speed clamping precision.
4) after common main shaft 9 or electric main shaft 10 stop the rotation; Clamping force measuring head 25 is fixed in the big power chuck 13 or low-power chuck 14 that needs to detect; Tachometric survey magnetism stick 26 is fixed on the magnetism stick support 27; Make the magnetic induction point on the tachometric survey magnetism stick 26 aim at clamping force measuring head 25, the magnetic switch that rotates second magnetic bases 29 is fixed on magnetism stick support 27 on the check-out console body 1.
5) connect handheld unit 28 after controlling computer 8, open handheld unit 28, start an angling cylinder 11 or No. two angling cylinders 12, apply clamping force for check rod 30.Clamping force measuring head 25 is transferred to handheld unit 28 through wireless transmission method with the clamping force signal; When clamping force measuring head 25 whenever rotates a circle simultaneously; Magnetic block on the tachometric survey magnetism stick 26 can trigger the magnetic devices in the clamping force measuring head 25; Clamping force measuring head 25 is the record triggering times automatically, according to triggering times, can know the rotating cycle of clamping force measuring head 25; Clamping force measuring head 25 is transferred to handheld unit 28 with these signal wireless; Logical controlling computer 8 is exported clamping force-rotation speed relation curve map (like Fig. 5) in real time; According to mechanical industry standard JB/T 3860; Clamping force must not be less than 2/3 of actual measurement maximum clamping force under limit speed for power chuck, and promptly the corresponding rotating speed in 2/3 place of maximum clamping force is its limit speed.Among Fig. 5, maximum clamping force is 100,000 Ns (KN), about 66,000 Ns, locates corresponding 3000 rev/mins of rotating speeds (r/min), is its limit speed.
In measuring process; After big power chuck 13 or the overproof generation vibration of low-power chuck 14 transient equilibrium; Through laser measuring head 18 displacement signal is transferred to laser measuring head control box 17; Laser measuring head control box 17 is given servo-control system 3 with signal feedback again, realizes the automatic shutdown protection of numerically-controlled machine tool system.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. a high-speed hydraulic power chuck comprehensive test platform is characterized in that it comprises numerically-controlled machine tool system, hydraulic system and data detection system;
Said numerically-controlled machine tool system comprises check-out console body (1), and said check-out console body (1) is connected with main spindle box (2), and said main spindle box is equipped with transmission main shaft in (2), and said transmission main shaft comprises common main shaft (9) and electric main shaft (10); An angling cylinder (11) and big power chuck (13) are separately fixed at the two ends of common main shaft (9), and No. two angling cylinders (12) and low-power chuck (14) are separately fixed at the two ends of electric main shaft (10); Common main shaft (9) also is connected with servo-control system (3) respectively with electric main shaft (10);
Said hydraulic system comprises and is respectively an angling cylinder (11), No. two angling cylinders (12) that big power chuck (13), low-power chuck (14) provide power; Said water chiller (4) connects electric main shaft (10); Said Hydraulic Station (5) connects an angling cylinder (11) and No. two angling cylinders (12) respectively, and said oily cooler (6) connects Hydraulic Station (5);
Said data detection system comprises laser displacement sensing device and clamping force sensing device, and said laser displacement sensing device connects controlling computer (8) through data collecting card (7); The clamping force sensing device links to each other with controlling computer (8) through data line.
2. a kind of high-speed hydraulic power chuck comprehensive test platform according to claim 1; It is characterized in that; Said laser displacement sensing device comprises laser measurement head bracket (16) and the laser measuring head control box (17) that is fixed on the check-out console body (1); Said laser measurement head bracket (16) is provided with laser measuring head (18), and said laser measuring head (18) connects data collecting card (7) through laser measuring head control box (17); Said laser measuring head control box (17) connects servo-control system (3).
3. a kind of high-speed hydraulic power chuck comprehensive test platform according to claim 2; It is characterized in that; Laser measurement head bracket (16) comprises support spindle rod (19), and said support spindle rod (19) is fixed on the check-out console body (1) through first magnetic bases (20); Go up to be fixed with at support spindle rod (19) and slide up and down bar (21), slide up and down bar (21) and be provided with the through hole that the bar (22) that can supply to horizontally slip passes through locking switch; The end of bar (22) of horizontally slipping passes the through hole that slides up and down on the bar (21), and the other end is fixed on the vertical bar (23); The upper end that slides up and down bar (21) is fixed with clamping screw, and the other end of clamping screw passes vertical bar (23), and logical set nut is fixed; The said upper end that slides up and down bar (21) and vertical bar (23) is respectively equipped with clamping plate (24), and described laser measuring head (18) is fixed between the clamping plate (24).
4. a kind of high-speed hydraulic power chuck comprehensive test platform according to claim 1; It is characterized in that; Said clamping force sensing device comprises clamping force measuring head (25), tachometric survey magnetism stick (26), magnetism stick support (27) and handheld unit (28); Said clamping force measuring head (25) is fixed in the power chuck to be measured; Said tachometric survey magnetism stick (26) is fixed on the magnetism stick support (27), and the bottom of magnetism stick support (27) is fixed on the check-out console body (1) through second magnetic bases (29); The magnetic induction point of tachometric survey magnetism stick (26) is aimed at clamping head measuring head (25), is wireless connections between said clamping head measuring head (25) and the handheld unit (28), and handheld unit (28) connects controlling computer (8) through data line.
5. a kind of high-speed hydraulic power chuck comprehensive test platform according to claim 1 is characterized in that, is provided with safty shield (15) around the said check-out console body (1).
6. a kind of high-speed hydraulic power chuck comprehensive test platform according to claim 5 is characterized in that the thickness of said safty shield (15) is greater than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403979.3A CN102435157B (en) | 2011-12-08 | 2011-12-08 | Comprehensive checkout stand for high-speed hydraulic power chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110403979.3A CN102435157B (en) | 2011-12-08 | 2011-12-08 | Comprehensive checkout stand for high-speed hydraulic power chuck |
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| Publication Number | Publication Date |
|---|---|
| CN102435157A true CN102435157A (en) | 2012-05-02 |
| CN102435157B CN102435157B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110403979.3A Expired - Fee Related CN102435157B (en) | 2011-12-08 | 2011-12-08 | Comprehensive checkout stand for high-speed hydraulic power chuck |
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| Country | Link |
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| CN (1) | CN102435157B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798494A (en) * | 2012-09-04 | 2012-11-28 | 德州联合石油机械有限公司 | High-precision torque measurement device and method for petroleum pipeline dismounting frame |
| CN103149020A (en) * | 2013-02-16 | 2013-06-12 | 清华大学 | Clamping rigidity measurement device of hydraulic power chuck |
| CN107941500A (en) * | 2017-12-20 | 2018-04-20 | 吉林大学 | The reliability test of numerically-controlled machine tool elasticity chuck |
| CN112692317A (en) * | 2021-01-11 | 2021-04-23 | 南京信息职业技术学院 | Self-adaptive clamping system of numerical control machine tool and control method thereof |
| CN113776816A (en) * | 2021-11-15 | 2021-12-10 | 济宁冠杰数控机床股份有限公司 | Reliability test device for elastic chuck of numerical control machine tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11254370A (en) * | 1998-03-04 | 1999-09-21 | Kondo Seisakusho:Kk | Thin type fluid pressure chuck |
| CN1740576A (en) * | 2004-08-26 | 2006-03-01 | 雄克有限公司 | Method for connecting two components and component system for implementing the method |
| CN202393363U (en) * | 2011-12-08 | 2012-08-22 | 东南大学 | High-speed comprehensive test platform for hydraulic power chuck |
-
2011
- 2011-12-08 CN CN201110403979.3A patent/CN102435157B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11254370A (en) * | 1998-03-04 | 1999-09-21 | Kondo Seisakusho:Kk | Thin type fluid pressure chuck |
| CN1740576A (en) * | 2004-08-26 | 2006-03-01 | 雄克有限公司 | Method for connecting two components and component system for implementing the method |
| CN202393363U (en) * | 2011-12-08 | 2012-08-22 | 东南大学 | High-speed comprehensive test platform for hydraulic power chuck |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798494A (en) * | 2012-09-04 | 2012-11-28 | 德州联合石油机械有限公司 | High-precision torque measurement device and method for petroleum pipeline dismounting frame |
| CN103149020A (en) * | 2013-02-16 | 2013-06-12 | 清华大学 | Clamping rigidity measurement device of hydraulic power chuck |
| CN103149020B (en) * | 2013-02-16 | 2016-06-08 | 清华大学 | Hydraulic power chuck clamping stiffness measurement device |
| CN107941500A (en) * | 2017-12-20 | 2018-04-20 | 吉林大学 | The reliability test of numerically-controlled machine tool elasticity chuck |
| CN112692317A (en) * | 2021-01-11 | 2021-04-23 | 南京信息职业技术学院 | Self-adaptive clamping system of numerical control machine tool and control method thereof |
| CN113776816A (en) * | 2021-11-15 | 2021-12-10 | 济宁冠杰数控机床股份有限公司 | Reliability test device for elastic chuck of numerical control machine tool |
| CN113776816B (en) * | 2021-11-15 | 2022-02-22 | 济宁冠杰数控机床股份有限公司 | Reliability test device for elastic chuck of numerical control machine tool |
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| Publication number | Publication date |
|---|---|
| CN102435157B (en) | 2014-05-07 |
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Granted publication date: 20140507 Termination date: 20181208 |