CN201279678Y - Five-shaft linkage leaf blade machining center - Google Patents

Abstract

The utility model discloses a five-axle linkage impeller processing center comprising a lathe bed, a rotating table mounted on the lathe bed, a planker capable of moving along the lathe bed, an upright post capable of moving along the planker, a swinging mechanism and a main spindle box, wherein, the swinging mechanism comprises a swinging spindle and a swing spindle driving mechanism, wherein, the swinging spindle is mounted on the upright post, the swinging spindle driving mechanism is arranged in the upright post, an arc track which can allow the swinging spindle to swing is arranged on the upright post, a feeding mechanism for moving the main spindle box is arranged in the swinging spindle, and the main spindle box is mounted on the swinging spindle and can move along the swinging spindle. The adoption of the mechanical transmission structure leads to less errors in the mechanical structure due to drift and the like, thereby realizing more reasonable and balanced transmission of the system, and operation of a cutter and a workpiece; the distance between the cutter and the processing surface is minimized, so that errors are reduced; and in addition, the center is more direct and simpler in terms of control over issues like cutter compensation, and programming of the whole structure, improves working efficiency, and finally further boosts the precision of workpiece processing.

Description

The five-axle linked blade machining center

Technical field

The utility model relates to a kind of Digit Control Machine Tool, is specifically related to a kind of five-axle linked blade machining center.

Background technology

Multi-axis linkage numerical control processing is difficulty maximum in the Numeric Control Technology, but use technology the most widely, mainly apply to complex-curved efficient, accurate, automation processing, be the process equipment of important civilian, military industrial department keys such as generating, boats and ships, space flight and aviation, in the world the multi-axis linkage numerical control process technology weighed the sign of a national industrialized level.5-axis machining center is a kind of Digit Control Machine Tool that contains the realization five-axle linkage interpolation processing that rectilinear coordinates axle (X, Y, Z) and two revolution reference axis (A, B) are formed.Wherein, the five-axle linked blade machining center then is to be used for the various blades of processing vapor turbine, aircraft engine and the part that other narrow long type has the spatial complex profile specially.

Existing five-axle linked blade machining center primary structure is for comprising lathe bed, make the planker of X-axis motion, the column of Y-axis motion, the turntable of A axle motion, Z axle slide plate and the main spindle box of doing the motion of B axle, and main spindle box is installed on the Z axle slide plate, however there is following defective in this 5-axis machining center: the one, because cutter is far away from the centre of gyration, it is quite complicated and tediously long to cause programming, and also causes the control accuracy of cutter benefit amount also relatively poor in addition; The 2nd, it is bigger that the error that is produced takes place to be offset the relative position relation between cutter and the workpiece, and correspondingly the precision of blades that is processed can't satisfy existing demand.

Summary of the invention

In order to overcome the deficiency of prior art structure, the utility model provides a kind of programming Control simple, the five-axle linked blade machining center that the accuracy of manufacture is high.

The utility model five-axle linked blade machining center adopts following technical scheme: it comprises lathe bed, be installed in the turntable on the described lathe bed, the planker that can move along described lathe bed, the column that can move along described planker, swing mechanism and main spindle box, described swing mechanism comprises balance staff and balance staff driving mechanism, described balance staff is installed on the described column, described balance staff driving mechanism places in the described column, described column is provided with can be for the arc track of described balance staff swing, be provided with the feed mechanism that moves described main spindle box in the described balance staff, described main spindle box is installed on the described balance staff and can moves along described balance staff.

By above-mentioned mechanical transmission structure, less frame for movement itself makes the transmission of system because of drift waits the error of bringing, and the operation of cutter and workpiece is more reasonable, balanced; Cutter further to greatest extent from the distance of finished surface, reduced error; In addition, the control of problems such as tool setting benefit amount and direct more, succinct concerning the programming of total is increased work efficiency, and the precision of processing work is further promoted.

A preferred embodiment as the utility model five-axle linked blade machining center, described balance staff driving mechanism comprises rotation axle electric machine, the reduction box that is connected with described rotation axle electric machine, reduction box output pinion, sector gear and drives the driving shaft of described balance staff, described reduction box output pinion is meshed with described sector gear, be provided with bearing between described driving shaft and the described column, be stationary fit between described driving shaft and the described bearing inner race, described sector gear is fixed on the described driving shaft or on the described bearing inner race, described driving shaft links to each other with described balance staff.Described balance staff driving mechanism also comprises angular displacement sensor, and described angular displacement sensor is installed in the described column, and described angular displacement sensor links to each other with described driving shaft.Described balance staff is provided with movable block, and described movable block places in the described arc track and can slide along described arc track.Described feed mechanism comprises main spindle box leading screw, main spindle box motor, main spindle box guiding rail and slide plate, described main spindle box leading screw links to each other with described main spindle box motor, described main spindle box guiding rail is symmetrically placed in the both sides of described main spindle box leading screw, described main spindle box leading screw and described main spindle box guiding rail are parallel to each other, described main spindle box leading screw moves described slide plate by feed screw nut, two slide blocks are housed on the described slide plate at least, described slide block can slide along described main spindle box guiding rail respectively, and described slide plate is fixed in described main spindle box.The grating chi also is housed on the described balance staff, and described grating chi comprises quiet chi and read head, and described quiet chi is installed on the described balance staff, and described read head is installed on the described slide block.Described planker table top tilts to described turntable, and forms the acute angle angle with horizontal plane, and described acute angle angle angle is 15 degree.

Description of drawings

Fig. 1 is the front view of a preferred embodiment of the utility model five-axle linked blade machining center;

Fig. 2 is a left view embodiment illustrated in fig. 1;

Fig. 3 be along A-A among Fig. 1 to cutaway view;

Fig. 4 is the enlarged drawing of B part among Fig. 3;

Fig. 5 is the floor map of an embodiment of the feeding structure of the utility model five-axle linked blade machining center.

Indicate among the figure: 1 is lathe bed; 2 is planker; 3 is column; 4 is main spindle box; 5 is turntable; 6 is balance staff; 7,7-1,7-2,7-3 are followed successively by planker motor, column motor, rotation axle electric machine and main spindle box motor; 8 is shaft coupling; 9 is reduction box; 10 is the reduction box output pinion; 11 is sector gear; 12 is output shaft; 13 is movable block; 14 is bearing; 15 is the main spindle box leading screw; 16 is feed screw nut; 17 is arc track; 18 is main spindle box guiding rail; 19 is slide block; 20 is the linear grating chi; 21 is bearing block; 22 are circle grating chi; 23 is slide plate, and 24 is bolt, and 25 is quiet chi.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Fig. 1 and Fig. 2 are two floor map of a preferred embodiment of the utility model five-axle linked blade machining center.With reference to figure 1 and Fig. 2, the planker 2 that the five-axle linked blade machining center comprises lathe bed 1, be installed in turntable 5 on the lathe bed 1, can move along lathe bed 1, column 3, swing mechanism and the main spindle box 4 that can move along planker 2, swing mechanism comprises balance staff 6 and balance staff driving mechanism, balance staff 6 is installed on the column 3, the balance staff driving mechanism places in the column 3, column 3 is provided with can be for the arc track 17 of balance staff 6 swings, be provided with the feed mechanism of mobile main spindle box 4 in the balance staff 6, main spindle box 4 is installed on the balance staff 6 and can moves along balance staff 6.Here, five are meant three rectilinear coordinates axles and two gyroaxises, wherein, planker 2 are made as X-axis along the moving direction of lathe bed 1; Column 3 is made as Y-axis along the moving direction of planker 2; Main spindle box 4 is made as the Z axle along the moving direction of balance staff 6; The direction of rotation of turntable 5 is made as the A axle; Direction of rotation with balance staff 6 relative columns 3 is made as the B axle at last.

Lathe bed 1 is elongated, is fixed on the ground by bolt 24.Two turntables are installed on the upper surface of 5 lathe beds 1, and are distributed in the two ends of lathe bed 1 one sides along the length direction of lathe bed 1.Two turntables 5 are coaxial, need the workpiece of processing can be clipped between two turntables 5, are respectively equipped with the device of fixation workpiece on the relative two ends of turntable 5, and after workpiece fixed on turntable 5 like this, turntable 5 just can be with workpiece to rotate together.Two parallel carriage rail (not shown)s also are housed on the upper surface of lathe bed 1, and these two carriage rails are also arranged along the length direction of lathe bed 1.Be provided with a planker leading screw between the carriage rail, planker motor 7 links to each other with the planker leading screw and drives leading screw and rotates.The planker motor is installed in an end of lathe bed 1.Planker 2 is installed on carriage rail and the planker leading screw, and leading screw rotates and can drive planker 2 and move as X-direction along carriage rail.The table top of planker 2 tilts to turntable 5, and forms acute angle angle α with horizontal plane, and preferably, α is 15 degree angles.Planker 2 is rectangle, and two parallel column guide rail (not shown)s are housed on the surface thereon, and the column guide rail is arranged along the width of planker 2, and is promptly vertical mutually with carriage rail.Be provided with a root post leading screw (not shown) between the column guide rail, an end of column leading screw is connected with column motor 7-1, and column motor 7-1 is installed on the planker 2.Column 3 is installed on column guide rail and the column leading screw, and vertical mutually with planker 2.Column motor 7-1 drives the column leading screw and rotates, and the column leading screw drives column 3 again and moves as Y direction along the column guide rail.

As shown in Figure 3, as an embodiment of the present utility model, the balance staff driving mechanism comprises rotation axle electric machine 7-2, the reduction box 9 that is connected with rotation axle electric machine 7-2, reduction box output pinion 10, sector gear 11 and drives the driving shaft 12 of balance staff 6, reduction box output pinion 10 is meshed with sector gear 11, be provided with bearing 14 between driving shaft 12 and the column 3, be stationary fit between the inner ring of driving shaft 12 and bearing 14, sector gear 11 is fixed on the driving shaft 12 or on the inner ring of bearing 14, driving shaft 12 passes column 3 and links to each other with balance staff 6 to drive balance staff.7-2 is continuous mutually with rotation axle electric machine by shaft coupling 8 for reduction box 9.Except the part of rotation axle electric machine 7-2 reaches the outside of column 3, the other parts of balance staff driving mechanism are installed in the inner chamber of principal post 3.The balance staff driving mechanism also comprises angular displacement sensor 22, and angular displacement sensor 22 is installed in the column 3, and angular displacement sensor 22 links to each other with driving shaft 12.Angular displacement sensor 22 certainly in other embodiments, also can be other detecting instrument, as rotary transformer for the circle grating.Round grating 22 has been arranged, just can make the B axle relative to column 3 and rotate angle detection and the feedback relevant detection information of carrying out balance staff 6.Balance staff 6 is provided with movable block 13, and movable block 13 places arc track interior 17 and can slide along arc track 17.Rotation axle electric machine 7-2 drives driving shaft 12 rotations, and 12 of driving shafts drive balance staff 6 and do the rotation of B axle along arc track 17.

As shown in Figure 4 and Figure 5, feed mechanism comprises main spindle box leading screw 15, main spindle box motor 7-3, main spindle box guiding rail 18 and slide plate 23, main spindle box leading screw 15 links to each other with main spindle box motor 7-3, main spindle box guiding rail 18 is symmetrically placed in the both sides of main spindle box leading screw 15, main spindle box leading screw 15 is parallel to each other with main spindle box guiding rail 18, be with feed screw nut 16 on the main spindle box leading screw 15, main spindle box leading screw 15 is by feed screw nut 16 moving slide boards 23, two slide blocks 19 are housed on the slide plate 23 at least, slide block 19 can slide along main spindle box guiding rail 18 respectively, and slide plate 23 is fixed in main spindle box 4.The two ends of main spindle box leading screw 15 are installed in the balance staff 6 by bearing respectively, are provided with corresponding bearing block 21 in the balance staff 6.Like this, main spindle box 4 just can be done moving of Z-direction along balance staff 6.Grating chi 20 also is housed to measure the amount of feeding along Z-direction of main spindle box 4 on the balance staff 6.Grating chi 20 comprises quiet chi 25 and read head (not shown), and quiet chi 25 is installed on the balance staff 6, and read head is installed on the slide block 19.

Above disclosed only is preferred embodiment of the present utility model, can not limit interest field of the present utility model with this certainly, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims (8)

1, a kind of five-axle linked blade machining center, comprise lathe bed, be installed in the turntable on the described lathe bed, the planker that can move along described lathe bed, the column that can move along described planker, swing mechanism and main spindle box, it is characterized in that: described swing mechanism comprises balance staff and balance staff driving mechanism, described balance staff is installed on the described column, described balance staff driving mechanism places in the described column, described column is provided with can be for the arc track of described balance staff swing, be provided with the feed mechanism that moves described main spindle box in the described balance staff, described main spindle box is installed on the described balance staff and can moves along described balance staff.

2, five-axle linked blade machining center according to claim 1, it is characterized in that: described balance staff driving mechanism comprises rotation axle electric machine, the reduction box that is connected with described rotation axle electric machine, the reduction box output pinion, sector gear, with the driving shaft that drives described balance staff, described reduction box output pinion is meshed with described sector gear, be provided with bearing between described driving shaft and the described column, be stationary fit between described driving shaft and the described bearing inner race, described sector gear is fixed on the described driving shaft or on the described bearing inner race, described driving shaft links to each other with described balance staff.

3, five-axle linked blade machining center according to claim 2 is characterized in that: described balance staff driving mechanism also comprises angular displacement sensor, and described angular displacement sensor is installed in the described column, and described angular displacement sensor links to each other with described driving shaft.

4, five-axle linked blade machining center according to claim 1 and 2, it is characterized in that: described balance staff is provided with movable block, and described movable block places in the described arc track and can slide along described arc track.

5, five-axle linked blade machining center according to claim 1 and 2, it is characterized in that: described feed mechanism comprises the main spindle box leading screw, the main spindle box motor, main spindle box guiding rail and slide plate, described main spindle box leading screw links to each other with described main spindle box motor, described main spindle box guiding rail is symmetrically placed in the both sides of described main spindle box leading screw, described main spindle box leading screw and described main spindle box guiding rail are parallel to each other, described main spindle box leading screw moves described slide plate by feed screw nut, two slide blocks are housed on the described slide plate at least, described slide block can slide along described main spindle box guiding rail respectively, and described slide plate is fixed in described main spindle box.

6, five-axle linked blade machining center according to claim 5 is characterized in that: the grating chi also is housed on the described balance staff, and described grating chi comprises quiet chi and read head, and described quiet chi is installed on the described balance staff, and described read head is installed on the described slide block.

7, five-axle linked blade machining center according to claim 1 and 2 is characterized in that: described planker table top tilts to described turntable, and forms the acute angle angle with horizontal plane.

8, five-axle linked blade machining center according to claim 7 is characterized in that: described acute angle angle angle is 15 degree.

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