Summary of the invention
The technical issues of the utility model is solved is to provide a kind of suspension type ball screw assembly, measurement Error Compensation dress
It sets, brings measurement error to solve the bending deformation that lead screw pair self weight generates, while avoiding generating interference with the part on lathe bed
The problem of.
Realize the technical solution of the utility model aim are as follows:
A kind of suspension type ball screw assembly, measurement Error Compensation device, including fixed frame, mounting base, rotating seat, rotation seat,
Supporting block;The mounting base and fixed frame are connected;The mounting base is equipped with the first circular hole, and circular hole is axially vertical direction, institute
Rotating seat lower end is stated equipped with first rotating shaft, first rotating shaft is located in the first circular hole, can rotate in the first circular hole;The rotating seat
Center is equipped with eccentric orfice;The rotation seat lower end is equipped with the second shaft, and the second shaft is located in eccentric orfice, the supporting block with turn
Dynamic seat upper end is connected;It is additionally provided between the rotating seat and mounting base and the two is carried out to locked locking mechanism.
The utility model compared with prior art, remarkable advantage:
(1) compensation device of the utility model can be avoided lead screw since the bending deformation that self gravity generates brings measurement
Error, while can avoid the part on compensation device and lathe bed and generating interference.
(2) compensation device of the utility model, rotating seat are equipped with eccentric orfice, and rotation seat is arranged in eccentric orfice, passes through
Eccentric orfice can adjust the axis of rotation seat and the axis of lead screw in same vertical plane.
(3) compensation device of the utility model is equipped with height adjustment mechanism, and the height of rotation seat is adjusted, to adjust branch
Bracer upper end comes into full contact with lead screw, and guarantees that lead screw axis is parallel with mobile platform.
(4) compensation device of the utility model, mounting base include fixed block and swinging block, and swinging block can fix block pendulum relatively
Dynamic certain angle avoids processing, installation error from causing rigid support, causes stuck to realize adaptive adjustment.
The utility model is described in further detail with reference to the accompanying drawing.
Specific embodiment
In order to illustrate the technical solution of the utility model and technical purpose, with reference to the accompanying drawing and specific embodiment is to this reality
It is described further with novel.
In conjunction with Fig. 1-Fig. 4, a kind of suspension type ball screw assembly, measurement Error Compensation device of the utility model, including fixation
Frame IV, mounting base I, rotating seat 9, rotation seat 14, supporting block 15;The mounting base I and fixed frame IV is connected;The mounting base I
Be equipped with the first circular hole 2-1, circular hole 2-1 is axially vertical direction, 9 lower end of rotating seat be equipped with first rotating shaft 9-1, first turn
Axis 9-1 is located in the first circular hole 2-1, can rotate in the first circular hole 2-1;9 center of rotating seat is equipped with eccentric orfice 9-2;Institute
14 lower end of rotation seat is stated to be located in eccentric orfice 9-2 equipped with the second shaft 14-1, the second shaft 14-1, the supporting block 15 with rotate
14 upper ends of seat are connected;It is additionally provided with locking mechanism between the rotating seat 9 and mounting base I, rotating seat 9 and mounting base I are carried out
It is locked;By the way that eccentric orfice 9-2 is arranged, when rotating seat 9 rotates, rotation seat 14 can be driven to rotate, rotation seat 14 rotates, so that rotation
The axial direction of seat 14 is rotated together with the axial direction of eccentric orfice 9-2, so that the axis and lead screw of rotation seat 14, first rotating shaft 9-1
Axis in same vertical plane, to guarantee rotation seat 14 from the center of radial support lead screw, to prevent entire compensation device
It is supported caused by processing, installation error eccentric;After eccentric orfice 9-2 is adjusted in place, by locking mechanism by rotating seat 9 and mounting base
I is locked, and rotating seat 9 is avoided to continue to rotate.
In some embodiments, the mounting base I is equipped with the first threaded hole 2-3, and the first threaded hole 2-3 is axial with the
One circular hole 2-1 is axially vertical, screw 10 is equipped in the threaded hole 2-1, by being screwed into screw 10, by rotating seat 9 and mounting base I
It is locked, the first threaded hole 2-3 and screw on mounting base I constitute locking mechanism together.
In other embodiment, the end the mounting base I is equipped with threaded hole;Threaded hole axial direction and the first circular hole 2-1
It is axial parallel;9 upper end of rotating seat is disc structure, and disk is equipped with arc groove, is equipped with screw in arc groove, arc groove with
Rotating seat 9 can rotate when rotating relative to screw;The nut of screw is located at arc groove upper end, and the stud of screw is screwed into spiral shell from arc groove
Pit, screw are threaded into hole to lock rotating seat 9 and mounting base I, on the threaded hole, rotating seat 9 on mounting base I
Arc groove and screw constitute locking mechanism together.
Further, entire compensation device is additionally provided with height adjustment mechanism, and the height adjustment mechanism includes end cap 11, adjusts
Save screw 13;The end cap 11 is fixed on the lower end mounting base I, and 11 center of end cap is equipped with the second threaded hole 11-1, and described the
It is equipped in two threaded hole 11-1 and adjusts screw 13;The adjusting screw 13 is located at 14 lower end of rotation seat, can by adjusting screw 13
The height for adjusting rotation seat 14, is come into full contact with, and guarantee lead screw axis and mobile platform with adjusting 15 upper end of supporting block with lead screw
In parallel.
Further, it is additionally provided with fastening nut 12 on the adjusting screw 13, screw 13 will be adjusted and locked with end cap 11,
The vibration generated during guide screw movement is avoided, causes to adjust the loosening of screw 13.
Further, the mounting base I includes fixed block 1, swinging block 2;1 rear end of fixed block and fixed frame IV are solid
Even;The fixed block 1 is equipped with the second circular hole 1-1;The axial direction for being axially perpendicular to the first circular hole 2-1 of second circular hole 1-1;It is described
First circular hole 2-1 is arranged on swinging block 2;2 rear end of swinging block is equipped with third shaft 3, and the setting of third shaft 3 is in the second circle
In the 1-1 of hole, 3 rear end of third shaft is equipped with nut 6, to carry out axial restraint to third shaft 3;The swinging block 2 passes through
Third shaft 3 can fix the relative rotation of block 1 relatively, and position-limit mechanism is equipped between the fixed block 1 and swinging block 2, to limit pendulum
Motion block 2 and fixed block 1 relatively rotate angle.When compensation device is supported on lead screw lower end, swinging block 2 can fix the pendulum of block 1 relatively
Dynamic certain angle supports adaptive adjustment to realize, avoids processing, installation error from causing rigid support, cause stuck.
As an implementation, in conjunction with Fig. 5,1 front end of fixed block is equipped with arc groove 8,8 center of circle of arc groove and second
Circular hole 1-1 is concentric;2 rear end of swinging block is fixed with straight pin 7, and 7 rear end of straight pin is located in arc groove 8;Swinging block 2
When rotation, it can drive straight pin 7 that can slide in arc groove 8;The swing angle that swinging block 2 can be limited by arc groove 8, prevents
Swinging block 2 is hung upside down after rotating, at the same supporting block 15 contact with lead screw after can guarantee the adaptively level of swinging block 2.
Further, the central angle of arc groove 8 is 30 °, to limit the rotational angle of swinging block 2 within the scope of 30 °.
Further, it is also cased with ball circle 4 in the third shaft 3, gasket is equipped between the ball circle 4 and nut 6
5, it is convenient for the rotation of swinging block 2 by ball circle 4, avoids nut 6 to the locked of swinging block 2.
Further, 15 upper end of supporting block is equipped with V-shaped groove, lead screw is supported by V-shaped groove, so that 15 upper end of supporting block
There is better supporting role with lead screw.The supporting block 15 is connected by positioning pin with rotation seat 14, so that V-shaped groove center phase
It is symmetrical between two parties to 14 axis of rotation seat.
In as an implementation, in conjunction with Fig. 6, the fixed frame IV includes hanging seat 18, rotation bolt 17, fixture block 16;
18 lower end of hanging seat is equipped with card slot, and the fixture block 16 is located in card slot, and the setting of fixture block 16 makes in rotation 17 lower end of bolt
Card slot is stuck in test chassis upper end by the used time, and in the mounting groove that fixture block 16 is arranged on the rack, rotation rotation bolt 17 will block
Block 16 is fixed with rack.
In other embodiment, the fixed frame IV can also be used other some clamp systems and will entirely compensate
Device is fixed with test chassis.
In conjunction with Fig. 7 and Fig. 8, the suspension type ball screw assembly, measurement Error Compensation device of the utility model will be in use, first will
Compensation device 100 is fixed on lathe bed, then lead screw is fixed between frame end to end, and rotation adjusts screw 13, makes supporting block
15 contact with lead screw, and at this moment swinging block 2 is automatically positioned and locks with supporting block 15.When adjusting compensation device 100, lever thousand is used
Divide table and Magnetic gauge stand, Magnetic gauge stand is adsorbed on mobile platform 101, and dial test indicator is fixed on Magnetic gauge stand i.e.
It can.
Set-up procedure one:, will be on amesdial when the axis and lead screw axis of adjustment eccentric orfice 9-2 are in same perpendicular
Rounded contact be arranged on the direction y of lead screw and contacted with lead screw, to guarantee to show reading on table, from left to right sliding movement
Platform 101 observes the reading on amesdial, when rounded contact is close to compensation device 100, rotates rotating seat 9, makes amesdial
Numerical stability is within the scope of required installation accuracy.
Set-up procedure two: when adjusting screw axis is parallel with mobile platform 101, the rounded contact setting on amesdial is existed
It is contacted on the direction z of lead screw and with lead screw, to guarantee to show reading on table, slides mobile platform 101 from left to right, observe thousand points
Reading on table, when rounded contact is close to compensation device 100, rotation adjusts screw 13, makes the numerical stability of amesdial in institute
Within the scope of the installation accuracy needed.
Repetitive operation step 1 and step 2 consolidate screw 10 when the overall precision of compensation device reaches installation requirement
It is scheduled in the first threaded hole 2-3, rotating seat 9 is locked into anti-rotation, while being locked with fastening nut 12 and adjusting screw 13.
Utility model device structure is simple, small in size, avoids the problem of interfering with other parts, during the installation process
It can be automatically positioned locking, can effectively avoid the bending deformation of lead screw.