CN209513260U - A kind of electric spindle of boring mill universal turning load reliability test - Google Patents

Abstract

The utility model belongs to mechanical test equipment technical field, discloses a kind of electric spindle of boring mill universal turning load reliability test；Fixed module, sideway torque loading module, universal turning loading module, detection module are installed including main shaft；Main shaft installation fixed module includes electro spindle and load power axis；Power axis is carried to be fixedly connected by the general cooperation conical surface with tool-broaching mechanism with electro spindle；Sideway torque loading module includes torque applying portion and radial force compensation part；Torque applying portion includes dynamometer machine；Radial force compensation section point includes radial force compensation device；Rotary support in universal turning loading module with carry it is coaxially arranged on power shaft space；Detection module includes circular runout detection device, device for detecting axial displacement；The utility model solves the problems, such as that existing relevant device static can only adjust loading direction, while realization to electro spindle application dynamic force, persistently changes the function in loading force direction.

Description

A kind of electric spindle of boring mill universal turning load reliability test

Technical field

The utility model belongs to mechanical test equipment technical field, and in particular to one kind can realize electric spindle of boring mill any The reliability test of angle dynamic force revolution load.

Background technique

Electro spindle is the critical function component of numerically-controlled machine tool, and reliability level directly affects the reliable of numerically-controlled machine tool complete machine Property.Boring machine is a kind of numerically-controlled machine tool for being chiefly used in hole type parts processing, it is characterized in that electric spindle of boring mill operating condition Impact direction becomes Change frequently, especially at the hole that boring and milling is relatively large in diameter, dynamically load power suffered by electro spindle is helicoid.In addition, adding In work operating condition, electro spindle axis body is in the cantilever beam form of single-ended support more.

Carry out reliability bench test, excitation, exposure test object latent defect are the important hands for improving product reliability Section.Currently, can carry out the reliability-test equipment of simulation working condition tests to electro spindle both at home and abroad has very much, but majority does not account for Simulate operating condition in, the dynamically load power direction moment variation and main shaft axis body locating for cantilever beam state the problem of, such case exists It is particularly evident when boring and milling large diameter, deep borehole.

Summary of the invention

The utility model proposes a kind of electric spindle of boring mill universal turnings to load reliability test, adds for simulation operating condition When load, the problem of dynamically load power direction frequently changes, proposes solution.

Boring machine is relatively large in diameter in processing or when deep and long hole, and electro spindle provides the cutting force met the requirements in addition to itself rotation Outside, it also needs to carry out around hole rotary motion, this results in suffered loading stress when electro spindle is cut and changes on direction in current moment The characteristics of.Existing reliability test only considers loading head static angular variation issue mostly, when being not carried out load by The function that force changes relative to the main shaft axis body direction moment.In processing operating condition, electro spindle axis body many places are in single-ended support The characteristics of cantilever beam state, the torque of existing apparatus applies the supporting form that structure often changes main shaft, destroys single-ended support. In addition, existing apparatus is mostly single-point load, it is not inconsistent with processing situation that cutter in actual processing is one section of blade.

In order to solve the above technical problems, the utility model adopts the following technical solution:

A kind of electric spindle of boring mill universal turning load reliability test, including main shaft installation fixed module, lateral torsion Square loading module, universal turning loading module, detection module；

The main shaft installation fixed module includes electro spindle 2 and load power axis 32；

The load power axis 32 is fixedly connected by the general cooperation conical surface with tool-broaching mechanism with electro spindle 2；

The sideway torque loading module includes torque applying portion and radial force compensation part；

The torque applying portion includes dynamometer machine 10, dynamometer machine belt wheel 83, double-slot belt wheel 84；

Double-slot belt wheel 84, which is mounted on, to be carried on power axis 32, belt around on double-slot belt wheel 84 in the trough of belt of main shaft side with Dynamometer machine belt wheel 83 on 10 output shaft of dynamometer machine connects, and the torque that dynamometer machine 10 exports is transferred to by belt and is carried on power axis 32；

The radial force compensation section point includes radial force compensation device 12；

Compensation belt wheel 85 in the radial force compensation device 12 is connect with another notched belt of double-slot belt wheel 84；

Rotary support and load power axis 32 in the universal turning loading module is spatially coaxially arranged；

The detection module includes circular runout detection device 7, device for detecting axial displacement 8；The circular runout inspection Device 7 is surveyed to be fixed on 2 axis body of electro spindle；The device for detecting axial displacement 8 is fixed on ground black iron 1.

Universal turning loading module described in technical solution includes that rotary support, angular adjustment and dynamic force apply machine Structure；

The rotary support include main body 16,17, No. 1 synchronous pulleys 18 of main cohesive sleeve, rotary joint fulcrum 25, Loaded sleeve 28, bearing group 29, electric machine support 35, radial angle adjust motor 36, radiai adjustment pinion gear 37, revolution driving electricity 38, No. 2 synchronous pulleys 40 of machine；

The 16 convex disk surrounding in left side of main body is fixed by bolt and cohesive sleeve 17, and cohesive sleeve 17 is equipped with recessed Slot, No. 1 synchronous pulley 18, which is connected by key, to be fixed in cohesive sleeve 17, the convex disk of main 16 right end of body and rotary joint branch Axis 25 is bolted；

No. 2 synchronous pulley 40 and No. 1 synchronous pulleys 18 on the revolution driving motor 38 pass through synchronous band connection；

28 inner wall of loaded sleeve and 29 outer ring of bearing group are interference fitted, and the loaded sleeve 28 and main body 16 are concentric Installation, but without directly contact；

29 inner ring of bearing group and load power axis 32 are interference fitted；

The outer ring of the loaded sleeve 28 is equipped with the bank face in arc groove, with angular adjustment and dynamic force applying mechanism The cambered surface of loading head 59 matches；

Electric machine support 35 is installed on the boss of main 16 lower end of body by bolt, and radial angle adjusts motor 36 and is fixed on On electric machine support 35, radial angle adjusts and is equipped with radiai adjustment pinion gear 37 on 36 output shaft of motor.

Angular adjustment described in technical solution and dynamic force applying mechanism further include ring-shaped guide rail 34, left support disk 41, Right support disk 42, radiai adjustment gear ring 43, hydraulic cylinder 48, pilot valve 49, hydraulic stem 50, axial angle motor 51,3 are together Walk belt wheel 52, driver plate 53, level meter 54, force snesor 55, bulb motion bar 56, trapezoid block 57, small limit plate 58, guiding rotation Shaft 60, limit chuck 61, connected unit 62, limit disk 63, supporting block 64, guide rail 65, lead screw 66, radial guidance 70, arc Connecting plate 71；

Two ring-shaped guide rails 34 are fixed in the circumferential direction of main body 16, and right support disk 42 is equipped with keyway, radiai adjustment tooth Circle 43 is connected by key on right support disk 42, and radiai adjustment gear ring 43 is engaged with radiai adjustment pinion gear 37；

The inner round wall of left and right support plate and main body 16 cooperate, and contact surface can meet left and right support plate and the small angle of main body 16 Degree rotation；

The connection of 57 lower end of the bolt of trapezoid block is bank face loading head 59, the cambered surface of bank face loading head 59 and loaded sleeve 28 cancave cambered surface cooperation；

Support plate every side in left and right is connected by 66, guide rails 65 of a lead screw respectively, and supporting block 64 is by threaded hole and leads to Hole is connect with lead screw 66 and guide rail 65 respectively；

Supporting block 64 is equipped with hydraulic cylinder installing port, and guiding rotary shaft 60 is placed in installing port, limits logical on chuck 61 Hole is correspondingly connected with the threaded hole in 64 installing port of supporting block, and guiding rotary shaft 60 is limited in installing port, chuck 61 is limited 5 freedom degrees of restricted guidance rotary shaft 60 spatially, retain a rotary freedom；It is oriented to the shaft portion of rotary shaft 60 Across the central through hole of connected unit 62, match the axial cut-outs face for being oriented to rotary shaft 60 and the transverse plane of limit 63 centre bore of disk It closes, the long axis of guiding rotary shaft 60 is equipped with through-hole, and the disengagement of itself and connected unit 62 is limited using pin；

Design has motor installing port by hydraulic cylinder installing port in supporting block 64, and axial angle motor 51 is installed on this mouth In, and fixed by the mounting hole of surrounding；Motor shaft end connects No. 3 synchronous pulleys 52, same by synchronous belt and 62 outside of connected unit Walk gear ring engaged transmission；

What it is across main 16 both ends of body is one piece of driver plate 53, and 53 upper end of driver plate is fixed with level meter 54, is used as detection With angular dimension of the feedback loading force on axially and radially；The direct-connected force snesor 55 in the lower end of driver plate 53, to examine Survey and feed back the frequency and size of the dynamic force applied；

The rod-shaped one end of bulb motion bar 56 is connected to 55 on force snesor, and bulb end is matched with the spherical groove face on trapezoid block 57 It closes, small limit plate 58 limits the angle adjustment direction of bulb motion bar 56 and trapezoid block 57 in the axial direction；

It is connected between supporting block 64 using arc pressuring plate 71, guide ledges and the radial guidance 70 of arc pressuring plate 71 Guide groove cooperation, the arc boss of 70 rear end of radial guidance cooperate with the guide groove in ring-shaped guide rail 34 on main body 16.

Universal turning loading module described in technical solution further includes anti-winding device；The anti-winding device includes rotation Adapter 26, by the rotor portion of oil circuit and electric wire access rotary joint 26；

The rotor portion of the rotary joint 26 covers in the protruding shaft of rotary joint fulcrum 25, the stator department of rotary joint 26 Divide and is fixedly connected by bracket 27 with the load power device supporting table 6 in rotary support.

Rotary support described in technical solution further includes carrying power device supporting table 6, left bearing 19, left support frame 20, a left side Bearing cap 21, right support frame 22, right bearing 23, transition disc 24, snap ring 30, right positioning ring 31, left positioning ring 33；

The inner ring and 17 ladder axial plane of cohesive sleeve of the left bearing 19 are interference fitted, by the stepped shaft end of cohesive sleeve 17 Face limits its inner ring position；The outer ring of left bearing 19 and 20 inner round wall of left support frame are interference fitted, by left support frame on the right side of outer ring 20 confined planes are positioned, and left side is limited by 21 confined planes of left bearing lid；Left support frame 20 and left bearing lid 21 pass through bolt Connection, and be bolted on carrying power device supporting table 6；

22 inner round wall of right support frame and 23 outer ring of right bearing are interference fitted；By right support frame 22 on the left of the outer ring of right bearing 23 Confined planes positioning, right side limits by the limit end face on transition disc 24, inner ring by rotary joint fulcrum 25 ladder end face limit Position；Right support frame 22 is connected with 24 bolt of transition disc, and 22 pedestal of right support frame, which is fixed by bolts in, carries power device supporting table 6 On；

It is positioned on the left of 29 inner ring of bearing group by the multi-diameter shaft end face on load power axis 32, right side is limited by snap ring 30 and positioned, right Positioning ring 31 is bolted with loaded sleeve 28, and left positioning ring 33 is bolted with loaded sleeve 28, the limit on left positioning ring 33 Plane limits the position on the left of 29 outer ring of bearing group.

The loading device of electric spindle of boring mill universal turning described in technical solution further includes supplementary module；The supplementary module Including ground black iron 1, host computer 14, hydraulic station 15；

The host computer 14 is placed in ground 1 side of black iron, for the monitoring of indices and the overall control of system；It is hydraulic Stand 15 be placed in ground black iron on rear side of, for the oil circuit of electro spindle 2 and universal turning loading device 5 supply.

In device for detecting axial displacement 8 described in technical solution, two axial guidances 76 are mounted on axial detection support On platform 9, two pieces of sliding blocks 77 are installed on every guide rail, four pieces of sliding blocks 77 support main supporting plate 78, bolt on main supporting plate 78 jointly It is fixed with height bracket 79, XY fine tuning workbench 80 is fixed on height bracket 79, secondary support plate 89 is by laser interferometer 81 and XY Workbench 80 is finely tuned to connect.XY fine tuning workbench 80 can adjust the direction of Y and Z axis in 81 space of laser interferometer, keep laser dry Interferometer 81, which can detect, carries 32 end face run-out situation of power axis.

Circular runout detection device 7 described in technical solution includes No. 0 circular support 72 and No. 1 circular support 721,0 To No. 3 link blocks 73,731,732,733,741, No. 0 laser displacement sensor 75 and No. 1 of No. 0 extension board 74 and No. 1 extension board Laser displacement sensor 751,0 to No. 3 tunes fixing axle 82,821,822,823；

In the circular runout detection device 7, No. 0 and No. 1 circular support 72,721 by 0 to No. 3 link block 73, 731,732,733 opposite connection, 0 to No. 3 threaded portion tuned in fixing axle 82,821,822,823 respectively with 0 to No. 3 company The threaded hole of block 73,731,732,733 is connect with closing, so that circular runout detection device 7 and 2 axis body of electro spindle are relatively fixed.0 In 90 degree of direction installation No. 0 and No. 1 extension board 74,741 on number circular support 72, No. 0 and No. 1 laser displacement sensor 75, 751 are individually fixed on No. 0 and No. 1 extension board 74,741, adjust the position of sensor, make it to expose to the inspection for carrying power axis 32 Survey part.

The utility model has the following beneficial effects:

1, the utility model emphasis considers the problems of suffered dynamic force direction change when electric spindle of boring mill processing, and designing can The universal turning loading module that dynamic force loading direction persistently changes in simulation operating condition, solving existing relevant device static can only adjust The problem of whole loading direction.While realization to electro spindle application dynamic force, persistently change the function in loading force direction.This is practical It is novel using loading unit around the form of main axis, filled up the blank of related fields.

2, the utility model ensure that the state of main shaft cantilever beam when carrying out Work condition analogue, and existing experimental rig exists Mostly it is to place a torque on device to connect with spindle shaft body end portion when carrying out main-shaft torque application, forms the form of both ends support, breaks It is broken main shaft single-ended stress form in actual processing.The utility model places a torque on device and electro spindle parallel combination, protects The form of the single-ended stress of main shaft is demonstrate,proved.Meanwhile radial force compensation device is devised, solve belt pretightning force in parallel-connection structure in the same direction The problem of causing extra load to electro spindle.

3, in actual cut, electro spindle stress is often one section of blade, rather than a certain stress point.The utility model difference In the mode that existing apparatus uses single-point to load, the linear loading of dynamic force is realized using linear loading head.More truly mould Draw up force-bearing situation when electro spindle work.Meanwhile oil circuit and electricity when loading device revolution load are solved using rotary joint The coiling problem of line.

Detailed description of the invention

The utility model will be further described below with reference to the accompanying drawings:

Fig. 1 is the axis side throwing that a kind of electric spindle of boring mill universal turning described in the utility model loads reliability test Shadow figure；

Fig. 2 is that a kind of electric spindle of boring mill universal turning described in the utility model loads reliability test part-structure Axonometric drawing；

Fig. 3 is universal turning loading module axonometric drawing described in the utility model；

Fig. 4 is the part explosive view of universal turning loading module supporter described in the utility model；

Fig. 5 is the part explosive view of universal turning loading module supporter described in the utility model；

Fig. 6 is universal regulating mechanism explosive view described in the utility model；

Fig. 7 is sideway torque loading module described in the utility model and detection module axonometric drawing；

Fig. 8 is device for detecting axial displacement axonometric drawing described in the utility model；

Fig. 9 is circular runout detection device axonometric drawing described in the utility model；

Figure 10 is radial force compensation device axonometric drawing described in the utility model；

In figure:

1. ground black iron, 2. electro spindles, 3. main shaft internal contracting brake mechanisms, 4. electro spindle supporting tables, 5. universal turning loading modules, 6. Carry power device supporting table, 7. circular runout detection devices, 8. device for detecting axial displacement, 9. axial detection supporting tables, 10. measurement of powers Machine, 11. dynamometer machine supporting tables, 12. radial force compensation devices, 13. compensation device supporting tables, 14. host computers, 15. hydraulic stations, 16. main body, 17. cohesive sleeves, No. 18.1 synchronous pulleys, 19. left bearings, 20. left support frames, 21. left bearing lids, 22 right branch Support, 23 right bearings, 24. transition discs, 25. rotary joint fulcrums, 26. rotary joints, 27. brackets, 28. loaded sleeves, 29. axis Group is held, 30. snap rings, 31. right positioning rings, 32. carry power axis, 33. left positioning rings, 34. ring-shaped guide rails, 35. electric machine supports, 36. diameters To angular adjustment motor, 37. radiai adjustment pinion gears, 38. revolution driving motors, 39. revolution driving electric machine supports, No. 40.2 same Walk belt wheel, 41 left support disks, 42 right support disks, 43. radiai adjustment gear rings, connecting plate after 44. hydraulic cylinders connects before 45. hydraulic cylinders Fishplate bar, 46. upper junction plates, 47. lower connecting plates, 48. hydraulic cylinders, 49. pilot valves, 50. hydraulic stems, 51. axial angles electricity Machine, No. 52.3 synchronous pulleys, 53. driver plates, 54. level meters, 55. force snesors, 56. bulb motion bars, 57. trapezoid blocks, 58. Small limit plate, 59. bank face loading heads, 60. guiding rotary shafts, 61. limit chucks, 62. connected units, 63. limit disks, 64. Supporting block, 65. guide rails, 66. lead screws, 67. tight loops, 68. auxiliary positioning blocks, 69. bumper rings, 70. radial guidances, 71. arcs Connecting plate, No. 72.0 circular supports, No. 721.1 circular supports, No. 73.0 link blocks, No. 731.1 link blocks, No. 732.2 connections Block, No. 733.3 link blocks, No. 74.0 extension boards, No. 741.1 extension boards, No. 75.0 laser displacement sensors, No. 751.1 laser Displacement sensor, 76. axial guidances, 77. sliding blocks, 78. main supporting plates, 79. height brackets, 80.XY finely tune workbench, and 81. swash Optical interferometer, No. 82.0 tune fixing axle, and No. 821.1 tune fixing axle, and No. 822.2 tune fixing axle, and No. 823.3 tune fixation Axis, 83. dynamometer machine belt wheels, 84. double-slot belt wheels, 85. compensation belt wheels, 86. compensation axis, 87. right compensation brackets, 88. left compensation branch Frame, 89. secondary support plates.

Specific embodiment

A kind of electric spindle of boring mill universal turning load reliability test specifically includes that main shaft installs fixed module, side To torque loading module, universal turning loading module, detection module, supplementary module etc.；

The main shaft installation fixed module includes electro spindle 2, main shaft internal contracting brake mechanism 3, electro spindle supporting table 4 and load power Axis 32, for being tested electro spindle 2 and carrying the position adjustment and installation fixation of power axis 32；

The sideway torque loading module includes torque applying portion and radial force compensation part；

The torque applying portion includes dynamometer machine 10, dynamometer machine supporting table 11, dynamometer machine belt wheel 83, double-slot belt wheel 84；For applying the torque of proper orientation and size to electro spindle 2；

The radial force compensation section point includes radial force compensation device 12, and compensation device supporting table 13 is surveyed for compensating Function machine applies additional radial power caused when torque；

The radial force compensation device 12 includes compensation belt wheel 85, compensates axis 86, right compensation bracket 87, left compensation bracket 88,

The universal turning loading module includes rotary support, angular adjustment and dynamic force applying mechanism and lap guard Three parts of line apparatus.It is mainly used for carrying the adjusting of 32 load angle of power axis and turns round the application of dynamic force；

The rotary support includes carrying power device supporting table 6, main body 16,17, No. 1 synchronous pulley of cohesive sleeve 18, left bearing 19, left support frame 20, left bearing lid 21, right support frame 22, right bearing 23, transition disc 24, rotary joint fulcrum 25, loaded sleeve 28, bearing group 29, snap ring 30, right positioning ring 31, left positioning ring 33, electric machine support 35, radial angle adjusts electric Machine 36, radiai adjustment pinion gear 37, revolution driving motor 38,39, No. 2 synchronous pulleys 40 of revolution driving electric machine support are main to use In supporting and fixing for universal turning loading module entirety；

The angular adjustment and dynamic force applying mechanism includes ring-shaped guide rail 34, left support disk 41, right support disk 42, diameter To adjusting gear ring 43, connecting plate 44 after hydraulic cylinder, connecting plate 45 before hydraulic cylinder, upper junction plate 46, lower connecting plate 47, hydraulic cylinder 48, pilot valve 49, hydraulic stem 50,51, No. 3 synchronous pulleys 52 of axial angle motor, driver plate 53, level meter 54, power biography Sensor 55, bulb motion bar 56, trapezoid block 57, small limit plate 58, bank face loading head 59 are oriented to rotary shaft 60, limit chuck 61, connected unit 62, limit disk 63, supporting block 64, guide rail 65, lead screw 66, tight loop 67, auxiliary positioning block 68, bumper ring 69, Radial guidance 70, arc pressuring plate 71, the main adjusting for realizing universal turning loading module load angle and revolution dynamic force Apply function；

The anti-winding device includes rotary joint 26, bracket 27, whole due to loading device when carrying out revolution load Body rotation, certainly will lead to the winding of hydraulic cylinder oil pipe and motor lines, so by the rotor of oil circuit and electric wire access rotary joint 26 Part, then picked out from stationary part, avoiding device leads to the problem of coiling when loading.

The detection module includes circular runout detection device 7 and device for detecting axial displacement 8, is mainly used for electro spindle 2 in reliability test axial motion and circular runout monitoring.

The circular runout detection device 7 includes No. 0 circular support 72 and No. 1 circular support 721,0 to No. 3 link block 73,731,732,733,741, No. 0 laser displacement sensor 75 and No. 1 laser displacement sensing of No. 0 extension board 74 and No. 1 extension board Device 751,0 to No. 3 tunes fixing axle 82,821,822,823；

The device for detecting axial displacement 8 includes axial detection supporting table 9, axial guidance 76, sliding block 77, main supporting plate 78, height bracket 79, XY finely tunes workbench 80, laser interferometer 81, secondary support plate 89；

The supplementary module includes ground black iron 1, host computer 14, hydraulic station 15.

Refering to fig. 1, Fig. 2, Fig. 7, Figure 10, electro spindle 2 are fixed in electro spindle supporting table 4 by electro spindle internal contracting brake mechanism 3, Electro spindle supporting table 4 is connect by bolt with ground black iron 1, carries power axis 32 and electro spindle 2 passes through the general cooperation conical surface and broaching tool Mechanism is fixedly connected.Universal turning loading module 5 and to carry power axis 32 spatially coaxially arranged, lead to overload power device supporting table 6 with Ground black iron 1 connects, and circular runout detection device 7 tunes fixing axle 82,821,822,823 by 0 to No. 3 and is fixed on 2 axis of electro spindle On body, No. 0 laser displacement sensor 75 and No. 1 laser displacement sensor 751 in circular runout detection device 7 is detected To the bounce situation of change for carrying the test axial plane of power axis 32.Device for detecting axial displacement 8 is fixed in axial detection supporting table 9, is swashed Optical interferometer 81 is through the detectable end displacement situation for carrying power axis 32 of universal turning loading module 5.

Dynamometer machine 10 is fastened on ground black iron 1 by dynamometer machine supporting table 11.It carries and double flute band is installed on power axis 32 Wheel 84, belt bypass on double-slot belt wheel 84 in the trough of belt of main shaft side, with the dynamometer machine belt wheel on 10 output shaft of dynamometer machine 83 connections, the torque that dynamometer machine 10 exports are transferred to by belt and are carried on power axis 32.

On the relative position of dynamometer machine 10, radial force compensation device 12 passes through compensation device supporting table 13 and ground black iron 1 It is connected and fixed, the compensation belt wheel 85 in radial force compensation device 12 is connect with another notched belt of double-slot belt wheel 84, radial force Compensation belt wheel 85 in compensation device 12 is without torque loads.When 10 Xiang Zaili 32 input torque of axis of dynamometer machine, since belt has There is certain pretightning force, can be loaded to the additional radial force of tested electro spindle 2, the belt in radial force compensation device 12 just mentions A contrary pretightning force has been supplied, additional radial force is loaded and is eliminated.Axis 86 is compensated to be compensated by the left and right of left and right ends Bracket 88,87 supports, and left and right compensation bracket 88,87 is connected by bearing with compensation axis 86, and compensation belt wheel 85 is fixed on compensation axis On 86, it is connected by key fixation.

Host computer 14 is placed in ground 1 side of black iron, for the monitoring of indices and the overall control of system.Hydraulic station 15 It is placed on rear side of ground black iron, is supplied for the oil circuit of electro spindle 2 and universal turning loading module 5.

Refering to Fig. 3, Fig. 4, Fig. 5, the main 16 convex disk surrounding in left side of body is fixed by bolt and cohesive sleeve 17, cohesive sleeve 17 are equipped with groove, and No. 1 synchronous pulley 18, which is connected by key, to be fixed in cohesive sleeve 17, the inner ring and convergence set of left bearing 19 Cylinder 17 ladder axial planes interference fit, multi-diameter shaft end face defined position of 19 inner ring of the left bearing right side by cohesive sleeve 17, left bearing 19 outer ring and 20 inner round wall of left support frame are interference fitted, and are determined on the right side of 19 outer ring of left bearing by the confined planes of left support frame 20 Position, left support frame 20 are bolted with left bearing lid 21, and the confined planes of left bearing lid 21 limit a left side for 19 outer ring of left bearing Side.20 pedestal of left support frame is bolted on carrying power device supporting table 6.The convex disk of main 16 right end of body and rotary joint branch Axis 25 is bolted, and 22 inner round wall of right support frame and 23 outer ring of right bearing are interference fitted, and the left side of 23 outer ring of right bearing is by right branch The confined planes of support 22 position, and right support frame 22 is connected with 24 bolt of transition disc, and the limit end face on transition disc 24 limits right axle The right side of 23 outer rings is held, is limited on the left of the inner ring of right bearing 23 by the ladder end face of rotary joint fulcrum 25.22 bottom of right support frame Seat, which is fixed by bolts in, to be carried in power device supporting table 6.

Revolution driving motor 38 is fixed on by revolution driving electric machine support 39 and is carried in power device supporting table 6.Revolution driving For No. 2 synchronous pulley 40 and No. 1 synchronous pulleys 18 on motor 38 by synchronous band connection, revolution driving motor 38 provides entire ten thousand To the rotary motive power of revolution loading module 5.Electric machine support 35 is installed on the boss of main 16 lower end of body by bolt, radial angle Degree adjusts motor 36 and is fixed on electric machine support 35, and radial angle adjusts and is equipped with radiai adjustment pinion gear on 36 output shaft of motor 37.Two ring-shaped guide rails 34 are fixed in the circumferential direction of main body 16, and design has keyway, radiai adjustment gear ring 43 on right support disk 42 It is connected by key on right support disk 42, radiai adjustment gear ring 43 is engaged with radiai adjustment pinion gear 37, and load dress is adjusted The radial angle set.

Loaded 28 inner wall of sleeve and 29 outer ring of bearing group are interference fitted, loaded sleeve 28 and the concentric installation of main body 16, but Without directly contacting, this is mainly the problem of dynamic force is absorbed by left and right sidesing supporting frame 20,22 when avoiding the occurrence of load, guarantees to carry power Axis 32 is in the installation condition of cantilever beam.29 inner ring of bearing group and load power axis 32 are interference fitted, and 29 inner ring left end of bearing group is by carrying On power axis 32 multi-diameter shaft end face positioning, right end by snap ring 30 limit position, it is ensured that bearing group 29 carry 32 axial direction of power axis on not Meeting vibration, right positioning ring 31 are bolted with loaded sleeve 28, the outer ring right end position for limited bearing group 29.Left positioning ring 33 are also bolted with loaded sleeve 28, the position of the confined planes limitation 29 outer ring left end of bearing group on left positioning ring 33.It is loaded It is machined with arc groove on the outer ring of sleeve 28, is matched with the cambered surface of bank face loading head 59.

The rotor portion of rotary joint 26 covers in the protruding shaft of rotary joint fulcrum 25, and the stationary part of rotary joint 26 is logical It crosses bracket 27 and is fixedly connected with power device supporting table 6 is carried.

Refering to Fig. 3, Fig. 4, Fig. 6, the angular adjustment and dynamic force applying mechanism of universal turning loading module are about main set The axis vertical face of body 16 is full symmetric, is mounted on main body 16 by left support disk 41 and right support disk 42.Left and right support The inner round wall of disk 41,42 and main body 16 cooperate, and contact surface can meet left and right support plate 41,42 and main 16 low-angle of body turns It is dynamic.Design has two groups of opposite mounting holes in left and right support plate 41,42, the standard for being one group according to phase the same side, left and right support Respectively by a lead screw 66, a guide rail 65 is connected for disk 41,42 every sides.Buffering is installed at the both-side ends of lead screw 66 and guide rail 65 Circle 69, one group is connected between lead screw and guide rail using two auxiliary positioning blocks 68, and the least significant end of lead screw and guide rail is equipped with fastening Circle 67.Supporting block 64 is connect with lead screw 66 and guide rail 65 respectively by threaded hole and through-hole.Design has hydraulic cylinder in supporting block 64 Installing port, guiding rotary shaft 60 are placed in installing port, limit the threaded hole in the through-hole and 64 installing port of supporting block on chuck 61 It is correspondingly connected with, guiding rotary shaft 60 is limited in installing port, limit 5 of 61 restricted guidance rotary shafts 60 of chuck spatially Freedom degree retains a rotary freedom.The shaft portion for being oriented to rotary shaft 60 passes through the central through hole of connected unit 62, makes to be oriented to The transverse plane of the axial cut-outs face of rotary shaft 60 and limit 63 centre bore of disk, which is matched, to be closed, and the long axis of guiding rotary shaft 60 is equipped with Through-hole limits the disengagement of itself and connected unit 62 using pin.Connected unit 62 is fixed with 44 bolt of connecting plate after hydraulic cylinder, in hydraulic cylinder Afterwards before connecting plate 44 and hydraulic cylinder between connecting plate 45, hydraulic cylinder 48 is consolidated with lower connecting plate 47 using upper junction plate 46 respectively It is fixed.46 center opening of upper junction plate, hydraulic stem 50 can be moved up and down by through-hole.Before pilot valve 49 is installed on hydraulic cylinder On connecting plate 45, to control the disengaging of oil cylinder oil liquid, guarantee the loading force size and dynamical fashion of oil cylinder.In supporting block 64 Design has motor installing port by hydraulic cylinder installing port, and axial angle motor 51 is installed in this mouth, and is consolidated by the mounting hole of surrounding It is fixed.Motor shaft end connects No. 3 synchronous pulleys 52, passes through synchronous belt and gear ring engaged transmission synchronous on the outside of connected unit 62.Across master 16 both ends of body are one piece of driver plates 53, and 53 upper end of driver plate is fixed with level meter 54, are used as detection and feedback loading force exists Angular dimension on axially and radially.The direct-connected force snesor 55 in the lower end of driver plate 53, to detect and feed back application The frequency and size of dynamic force.The connection of 55 lower end of force snesor is pressure head unit, the connection of the rod-shaped one end of bulb motion bar 56 To force snesor, the spherical groove face on bulb end and trapezoid block 57 cooperates, small limit plate 58 by bulb motion bar 56 with it is trapezoidal The angle adjustment direction limitation of block 57 is in the axial direction.The connection of 57 lower end of the bolt of trapezoid block is bank face loading head 59, bank face The cancave cambered surface of the cambered surface of loading head 59 and loaded sleeve 28 cooperates, the displacement relation that can radially swing at an angle.Support It is connected between block 64 using arc pressuring plate 71, the guide ledges of arc pressuring plate 71 and the guide groove of radial guidance 70 cooperate, diameter Guide groove on the arc boss of 70 rear end of direction guiding rail and main body 16 in ring-shaped guide rail 34 cooperates.

Refering to Fig. 7, Fig. 8, in the circular runout detection device 7, No. 0 and No. 1 circular support 72,721 by 0 to No. 3 link blocks 73,731,732,733 are opposite to be connected, 0 to No. 3 threaded portion tuned in fixing axle 82,821,822,823 point Not with the threaded hole of 0 to No. 3 link block 73,731,732,733 with closing, so that circular runout detection device 7 and 2 axis of electro spindle Body is relatively fixed.No. 0 and No. 1 extension board 74,741, No. 0 and No. 1 laser position are installed in 90 degree of direction on No. 0 circular support 72 Displacement sensor 75,751 is individually fixed on No. 0 and No. 1 extension board 74,741, is adjusted the position of sensor, is made it to expose to Carry the detection part of power axis 32.

In the device for detecting axial displacement 8, two axial guidances 76 are mounted in axial detection supporting table 9, often Two pieces of sliding blocks 77 are installed, four pieces of sliding blocks 77 support main supporting plate 78 jointly, bolt is fixed with height on main supporting plate 78 on guide rail Bracket 79 is spent, XY fine tuning workbench 80 is fixed on height bracket 79, laser interferometer 81 and XY are finely tuned work by secondary support plate 89 Platform 80 connects.XY fine tuning workbench 80 can adjust the direction of Y and Z axis in 81 space of laser interferometer, enable laser interferometer 81 Detection carries 32 end face run-out situation of power axis.

Operation principle and process:

1, when carrying out electric spindle of boring mill reliability test, it is necessary first to adjust bank face loading head 59 and act on loaded sleeve Position in 28 axial directions.The tight loop 67 on universal 5 two sides lead screw 66 of loading module is rotated with spanner, supported on both sides piece 64 in silk It is moved axially back and forth under the action of thick stick 66 and guide rail 65, drives hydraulic cylinder 48, hydraulic stem 50, driver plate 53, trapezoid block 57, bank Face loading head 59 etc. is moved forward and backward in loaded 28 axial direction of sleeve, achievees the purpose that adjusting with this.The supporting block 64 of two sides is preceding After while move, the boss of 71 two sides of arc pressuring plate cooperates movement in the guide-track groove of radial guidance 70, plays auxiliary branch The effect of support.

2, the followed by adjusting of load angle, the radial and axial both direction of adjusting point of load angle, adjusts radial angle When spending, power adjusts motor 36 by radial angle and exports, and is transferred on radiai adjustment gear ring 43 by radiai adjustment pinion gear 37. Radiai adjustment gear ring 43 is fixed on right support disk 42, since right support disk 42 and left support disk 41 are relatively fixed, and left and right branch Support plate 41,42 inner walls are mounted on main body 16, and can be rotated around main body 16, thus can drive left and right support plate 41, Supporting block 64 between 42 and the hydraulic stem 50 being indirectly connected with supporting block 64, driver plate 53, trapezoid block 57, the load of bank face Small-angle Rotation of the first 59 equal components around main body 16.Main 16 upper end of body is provided with the opening of certain angle, can avoid axial angle When degree is adjusted, the interference of bank face loading head 59 and main body 16.Due to bank face loading head 59 cambered surface always with loaded set The cancave cambered surface cooperation of 28 upper ends of cylinder, loaded sleeve 28 also can accordingly be rotated with the rotation of bank face loading head 59.Meanwhile two sides The boss of 70 rear end of radial guidance and the guide groove cooperative movement of ring-shaped guide rail 34, realize auxiliary support function.

3, when adjusting axial load angle, the supporting block 64 of two sides be it is static, power is exported by axial angle motor 51, It is transferred in connected unit 62 by synchronous belt, connected unit 62 drives hydraulic cylinder 48, hydraulic stem 50, driver plate 53, small limit plate 58 Axial rotation, trapezoid block 57 and bank face loading head 59 at this time be it is static, matched by small 58 lower end of limit plate with trapezoid block 57 Close the same angular turn in part.

4, the application of torque is carried out after loading position and load angle are adjusted.Dynamometer machine 10 is opened, and torque is by dynamometer machine In 10 outputs to dynamometer machine belt wheel 83, the double-slot belt wheel 84 carried on power axis 32 is transferred to by belt, and then by double-slot belt wheel 84 It is input on electro spindle 2.At the same time, the compensation belt wheel 85 in radial force compensation device 12 is in the skin connecting with double-slot belt wheel 84 Band drives lower rotation.Compensate that belt wheel 85 is non-loaded, the pretightning force of its belt between double-slot belt wheel 84 balances out dynamometer machine band Pretightning force between wheel 83 and double-slot belt wheel 84.

5, followed by the application of dynamic force, pilot valve 49 controls the motion mode of hydraulic cylinder 48.When applying dynamic force, The hydraulic stem 50 at both ends pushes, and dynamic force is transferred on driver plate 53, passes through force snesor 55, bulb motion bar 56, trapezoid block 57, small limit plate 58 is transferred on bank face loading head 59, is finally acted on loaded sleeve 28 and is cooperated with bank face loading head 59 Cambered surface on.Dynamic force is acted on by bearing group 29 and is carried on power axis 32.

It 6, is finally the rotary motion of revolution load, using 2 axis of electro spindle as axis of rotation, the component of rotation includes entire Angular adjustment and dynamic force applying mechanism, in anti-winding device in the rotor portion and rotary support of rotary joint 26 Cohesive sleeve 17, main body 16, rotary joint fulcrum 25, loaded sleeve 28 etc..Power by 38 output power of revolution driving motor, It is transferred on No. 1 synchronous pulley 18 by synchronous toothed belt, since No. 1 synchronous pulley 18 is fixed in cohesive sleeve 17, Cohesive sleeve 17 connects main body 16, therefore can complete main body 16 (together with the angular adjustment and dynamic force on main body 16 Applying mechanism) rotation.

7, No. 0 and No. 1 laser displacement sensor sensor 75,751 when test carries out, in circular runout detection device 7 Detection carries 32 axial plane of power axis bounce situation of change.Laser interferometer 81 in device for detecting axial displacement 8 adds through universal turning It carries module detection and carries 32 end face run-out situation of power axis.

8, the control of each motor and servo valve, radial controlled with axial jitter by host computer 14 are detected in test.

Claims (8)

1. a kind of electric spindle of boring mill universal turning loads reliability test, it is characterised in that: install stent including main shaft Block, sideway torque loading module, universal turning loading module, detection module；

The main shaft installation fixed module includes electro spindle (2) He Zaili axis (32)；

Load power axis (32) is fixedly connected by the general cooperation conical surface with tool-broaching mechanism with electro spindle (2)；

The sideway torque loading module includes torque applying portion and radial force compensation part；

The torque applying portion includes dynamometer machine (10), dynamometer machine belt wheel (83), double-slot belt wheel (84)；

Double-slot belt wheel (84), which is mounted on, to be carried on power axis (32), and belt is around the trough of belt on double-slot belt wheel (84) close to main shaft side In, it is connect with the dynamometer machine belt wheel (83) on dynamometer machine (10) output shaft, the torque of dynamometer machine (10) output is transferred to by belt It carries on power axis (32)；

The radial force compensation section point includes radial force compensation device (12)；

Compensation belt wheel (85) on the radial force compensation device (12) is connect with another notched belt of double-slot belt wheel (84)；

Rotary support and load power axis (32) in the universal turning loading module is spatially coaxially arranged；

The detection module includes circular runout detection device (7), device for detecting axial displacement (8)；The circular runout inspection Device (7) are surveyed to be fixed on electro spindle (2) axis body；The device for detecting axial displacement (8) is fixed on ground black iron (1).

2. a kind of electric spindle of boring mill universal turning according to claim 1 loads reliability test, it is characterised in that:

The universal turning loading module includes rotary support, angular adjustment and dynamic force applying mechanism；

The rotary support includes main body (16), main cohesive sleeve (17), No. 1 synchronous pulley (18), rotary joint fulcrum (25), loaded sleeve (28), bearing group (29), electric machine support (35), radial angle adjust motor (36), radiai adjustment pinion gear (37), revolution driving motor (38), No. 2 synchronous pulleys (40)；

Convex disk surrounding is fixed by bolt and cohesive sleeve (17) on the left of the main body (16), and cohesive sleeve (17) is equipped with recessed Slot, No. 1 synchronous pulley (18), which is connected by key, is fixed on cohesive sleeve (17), the convex disk of main body (16) right end and rotation Connector fulcrum (25) is bolted；

No. 2 synchronous pulleys (40) on the revolution driving motor (38) pass through synchronous band connection with No. 1 synchronous pulley (18)；

Loaded sleeve (28) inner wall and bearing group (29) outer ring are interference fitted, the loaded sleeve (28) and main body (16) Installation with one heart, but without directly contact；

Bearing group (29) inner ring and load power axis (32) interference fit；

The bank face that the outer ring of the loaded sleeve (28) is equipped in arc groove, with angular adjustment and dynamic force applying mechanism adds The cambered surface of carrier head (59) matches；

Electric machine support (35) is installed on the boss of main body (16) lower end by bolt, and it is solid that radial angle adjusts motor (36) Due on electric machine support (35), radial angle adjusts and is equipped with radiai adjustment pinion gear (37) on motor (36) output shaft.

3. a kind of electric spindle of boring mill universal turning according to claim 2 loads reliability test, it is characterised in that:

The angular adjustment and dynamic force applying mechanism further includes ring-shaped guide rail (34), left support disk (41), right support disk (42), radiai adjustment gear ring (43), hydraulic cylinder (48), pilot valve (49), hydraulic stem (50), axial angle motor (51), 3 Number synchronous pulley (52), driver plate (53), level meter (54), force snesor (55), bulb motion bar (56), trapezoid block (57), Small limit plate (58), guiding rotary shaft (60), limit chuck (61), connected unit (62), limit disk (63), supporting block (64), Guide rail (65), lead screw (66), radial guidance (70), arc pressuring plate (71)；

Two ring-shaped guide rails (34) are fixed in the circumferential direction of main body (16), and right support disk (42) is equipped with keyway, radiai adjustment Gear ring (43) is connected by key on right support disk (42), and radiai adjustment gear ring (43) is engaged with radiai adjustment pinion gear (37)；

Left and right support plate (41；42) inner round wall and main body (16) cooperates, and contact surface can meet left and right support plate (41；42) with Main body (16) Small-angle Rotation；

The connection of trapezoid block (57) lower end of the bolt is bank face loading head (59), the cambered surface of bank face loading head (59) and loaded set The cancave cambered surface cooperation of cylinder (28)；

Left and right support plate (41；42) respectively by a lead screw (66), guide rail (65) connection, supporting block (64) passes through spiral shell for every side Pit and through-hole are connect with lead screw (66) and guide rail (65) respectively；

Supporting block (64) is equipped with hydraulic cylinder installing port, and guiding rotary shaft (60) is placed in installing port, in limit chuck (61) Through-hole is correspondingly connected with the threaded hole in supporting block (64) installing port, and guiding rotary shaft (60) is limited in installing port, is limited 5 freedom degrees of chuck (61) restricted guidance rotary shaft (60) spatially, retain a rotary freedom；It is oriented to rotary shaft (60) shaft portion passes through the central through hole of connected unit (62), makes the axial cut-outs face for being oriented to rotary shaft (60) and limit disk (63) for the transverse plane of centre bore with closing, the long axis of guiding rotary shaft (60) is equipped with through-hole, limits itself and connected unit using pin (62) disengagement；

Design has motor installing port by hydraulic cylinder installing port in supporting block (64), and axial angle motor (51) is installed on this mouth In, and fixed by the mounting hole of surrounding；Motor shaft end connects No. 3 synchronous pulleys (52), outside by synchronous belt and connected unit (62) The synchronous gear ring engaged transmission in side；

What it is across main body (16) both ends is one piece of driver plate (53), and driver plate (53) upper end is fixed with level meter (54), is used as The angular dimension of detection and feedback loading force on axially and radially；The direct-connected force snesor in the lower end of driver plate (53) (55), to detect and feed back the frequency and size of the dynamic force of application；

Bulb motion bar (56) rod-shaped one end is connected on force snesor (55), the spherical groove face on bulb end and trapezoid block (57) Cooperation, small limit plate (58) limit the angle adjustment direction of bulb motion bar (56) and trapezoid block (57) in the axial direction；

It is connected between supporting block (64) using arc pressuring plate (71), the guide ledges and radial guidance of arc pressuring plate (71) (70) guide groove cooperation, the arc boss and the guide groove in ring-shaped guide rail (34) on main body (16) of radial guidance (70) rear end are matched It closes.

4. a kind of electric spindle of boring mill universal turning according to claim 1 loads reliability test, it is characterised in that:

The universal turning loading module further includes anti-winding device；The anti-winding device includes rotary joint (26), will The rotor portion of oil circuit and electric wire access rotary joint (26)；

The rotor portion of the rotary joint (26) covers in the protruding shaft of rotary joint fulcrum (25), the stator of rotary joint (26) Part is fixedly connected by bracket (27) with the load power device supporting table (6) in rotary support.

5. a kind of electric spindle of boring mill universal turning according to claim 2 loads reliability test, it is characterised in that:

The rotary support further includes carrying power device supporting table (6), left bearing (19), left support frame (20), left bearing lid (21), right support frame (22), right bearing (23), transition disc (24), snap ring (30), right positioning ring (31), left positioning ring (33)；

The inner ring and cohesive sleeve (17) ladder axial plane of the left bearing (19) are interference fitted, by the multi-diameter shaft of cohesive sleeve (17) End face limits its inner ring position；The outer ring of left bearing (19) and left support frame (20) inner round wall are interference fitted, and outer ring side is by a left side The confined planes of support frame (20) are positioned, and the other side is limited by left bearing lid (21) confined planes；Left support frame (20) and left axle It holds lid (21) to be bolted, and is bolted on carrying power device supporting table (6)；

Right support frame (22) inner round wall and right bearing (23) outer ring are interference fitted；The outer ring side of right bearing (23) is by right support frame (22) confined planes positioning, the other side are limited by the limit end face on transition disc (24), and inner ring is by rotary joint fulcrum (25) The limit of ladder end face；Right support frame (22) is connected with transition disc (24) bolt, and right support frame (22) pedestal is fixed by bolts in It carries on power device supporting table (6)；

Bearing group (29) inner ring left end is positioned by the multi-diameter shaft end face on load power axis (32), and right end is limited by snap ring (30) and positioned, Right positioning ring (31) is bolted with loaded sleeve (28), and left positioning ring (33) is bolted with loaded sleeve (28), Zuo Dingwei The position of confined planes limitation bearing group (29) outer ring left end on ring (33).

6. a kind of electric spindle of boring mill universal turning according to claim 1 loads reliability test, it is characterised in that:

The electric spindle of boring mill universal turning loading device further includes supplementary module；The supplementary module includes ground black iron (1), Host computer (14), hydraulic station (15)；

The host computer (14) is placed in ground black iron (1) side, for the monitoring of indices and the overall control of system；It is hydraulic Stand (15) be placed on rear side of ground black iron, the oil circuit for electro spindle (2) and universal turning loading device (5) supplies.

7. a kind of electric spindle of boring mill universal turning according to claim 1 loads reliability test, it is characterised in that:

In the device for detecting axial displacement (8), two axial guidances (76) are mounted on axial detection supporting table (9), often Two pieces of sliding blocks (77) are installed, four pieces of sliding blocks (77) support main supporting plate (78), bolt on main supporting plate (78) jointly on guide rail It is fixed with height bracket (79), XY fine tuning workbench (80) is fixed on height bracket (79), secondary support plate is by laser interferometer (81) it is connect with XY fine tuning workbench (80)；XY, which finely tunes workbench (80), can adjust Y and Z axis in laser interferometer (81) space Direction detect laser interferometer (81) can and carry power axis (32) end face run-out situation.

8. a kind of electric spindle of boring mill universal turning according to claim 1 loads reliability test, it is characterised in that:

The circular runout detection device (7) includes No. 0 circular support (72) and No. 1 circular support (721), 0 to No. 3 connection Block (73；731；732；733), No. 0 extension board (74) and No. 1 extension board (741), No. 0 laser displacement sensor (75) and No. 1 swash Optical displacement sensor (751), 0 to No. 3 tunes fixing axle (82；821；822；823)；

In the circular runout detection device (7), No. 0 and No. 1 circular support (72；721) pass through 0 to No. 3 link block (73； 731；732；733) opposite connection, 0 to No. 3 tunes fixing axle (82；821；822；823) threaded portion on respectively with 0 to No. 3 Link block (73；731；732；733) threaded hole is with closing, so that circular runout detection device (7) and electro spindle (2) axis body phase To fixation, No. 0 and No. 1 extension board (74 are installed in 90 degree of direction on No. 0 circular support (72)；741), No. 0 and No. 1 laser position Displacement sensor (75；751) No. 0 and No. 1 extension board (74 are individually fixed in；741) on, the position of sensor is adjusted, makes it to shine It is incident upon the detection part for carrying power axis (32).