CN205763903U - Seat fixed by the main shaft of five-shaft linkage numerical control machining center - Google Patents

Abstract

This utility model relates to the main shaft of a kind of five-shaft linkage numerical control machining center and fixes seat (142), described main shaft is fixed and is installed main shaft (14) on seat (142) and be fixed on longitudinal pedestal (15) by two moving tracks (143), it is characterized in that, described two moving tracks (143) and spindle centerline (144) three are in same plane.Described longitudinal pedestal is fixed on along the slide rail of Y-axis slip by four fixed bits (152).Described four fixed bits and position fixed above (153) and main shaft lower end (141) for fixing Z axis servo motor seat on longitudinal pedestal constitute inclined hexagram layout (154).Advantage of the present utility model is that can be greatly improved main shaft fixes the seat (142) rigidity of support to main shaft (14), and strengthen the centre-to-centre spacing of two moving tracks (143) of Z axis thus improve longitudinal pedestal and main shaft is fixed the rigidity of support of seat so that main shaft is fixed seat and is remained in that superpower restraint rigidity when range vacant state.

Description

Seat fixed by the main shaft of five-shaft linkage numerical control machining center

Technical field

This utility model relates to machinery manufacturing technology field, is specifically related to Machine Manufacture, especially The main shaft of five-shaft linkage numerical control machining center, particularly five-shaft linkage numerical control machining center is fixed Seat.

Background technology

Along with Chinese national economy develops the needs with national defense construction rapidly, to high-grade, digitally controlled machine tools Propose urgent wilderness demand.Lathe is the symbol of a national manufacturing industry level, and represents The 5-shaft linkage numerical control lathe of machine-tool industry top level reflects the most in a sense The integral status of one national industrial development.

5-shaft linkage numerical control lathe is also called 5-axis machining center.Machining center is generally divided into Vertical machining centre and horizontal Machining centers.The gyroaxis of vertical machining centre has two ways, One is work table rotation axle, and another kind is dependent on the revolution of vertical spindle head.For the former, The workbench being arranged on base can turn round around X-axis, is defined as A axle, the general work of A axle Make scope+30 degree to-120 degree.The centre of workbench is additionally provided with a rotary table, around Z axis Revolution, is defined as C axle, and C axle is all 360 degree of revolutions.So by A axle and C axle Combination, fixing workpiece on the table is in addition to bottom surface, and remaining five face can be by Vertical spindle is processed.A axle and C axle minimum division value are generally 0.001 degree, the most again Workpiece can be subdivided into arbitrarily angled, process inclined plane, angling hole etc..A axle and C axle As realized linkage with XYZ tri-linear axis, so that it may process the space curved surface of complexity.This set The advantage putting mode is the relatively simple for structure of main shaft, and main shaft rigidity is the best, manufacturing cost ratio Relatively low.But general work platform can not design too big, and load-bearing is the least, particularly turn round when A axle During more than or equal to 90 degree, during workpiece cutting, workbench can be brought the biggest carrying moment.Separately A kind of revolution being dependent on vertical spindle head, front-end of spindle is a swiveling head, can cincture voluntarily Z axis 360 degree, becomes C axle, swiveling head also has band can the A axle that pivots of ring, typically Up to more than ± 90 degree, it is achieved above-mentioned same function.The advantage of this setup is main shaft Processing is very flexible, and it is very big that workbench can also design, the huge fuselage of passenger plane, huge Engine shell can process on this kind of machining center.

Chinese invention patent application 200910028286 discloses a kind of 5-shaft linkage numerical control processing Center, including lathe bed, portal frame, it comprises two columns in left and right, and is arranged at therebetween Gantry beam, gantry upright post front portion is installed and workbench can be made simultaneously directly to drive around what AC axle rotated Formula dual spindle accurate rotating platform.It is provided with on described portal frame and can arrange to the crossbeam of motion, front portion by X The slide carriage that Y-direction is moved, slide carriage front portion is had to be provided with the main shaft of Z-direction motion.Lathe bed and portal frame it Between cavity in be provided with tool magazine.It is said that this invention has occupation of land few, save space, operate steadily, Stable performance, shock resistance is good, can keep the effects such as precision for a long time.

Chinese invention patent application 201310418350 discloses a kind of five-axle linkage machining tool, Including, it includes base, gantry upright post, processing department, workbench and oscillating table, described gantry Column is arranged on described base, and described processing department is movably mounted at described gantry upright post On, and it is positioned at the top of described base, described base is provided with the first guide rail and first and drives Device, described workbench is movably mounted on described first guide rail, and drives with described first Dynamic device connects, and described oscillating table is arranged on described workbench, the swinging axle of described oscillating table Line is parallel to the bearing of trend of described first guide rail.It is said that this invention is due to the swinging axle of oscillating table Line is parallel to the bearing of trend of the first guide rail, therefore stops moving along the first guide rail when workbench Time, oscillating table will not produce unnecessary swing because of inertia, such that it is able to avoid pendulum effect Generation, improve machining accuracy.

But, it is not enough that prior art yet suffers from main shaft support, and seat supports deficiency fixed by main shaft, And the problem such as the restraint rigidity of main shaft is not enough.

Utility model content

The purpose of this utility model is to overcome present in prior art one even more than skill Art problem.

The present utility model people have been surprisingly found that, can realize this practicality by the following technical programs Novel technical purpose.

Seat (142) fixed by the main shaft of a kind of five-shaft linkage numerical control machining center, and seat fixed by described main shaft (142) main shaft (14) is installed on and is fixed on longitudinal pedestal (15) by two moving tracks (143) On, it is characterised in that described two moving tracks (143) are in spindle centerline (144) three Same plane.

At a preferred aspect, described main shaft is fixed seat and can be slided along Z axis.

At a preferred aspect, described longitudinal pedestal is fixed on edge by four fixed bits (152) On the slide rail that Y-axis is slided.

At a preferred aspect, described four fixed bits and for fixing Z on longitudinal pedestal Position fixed above (153) and main shaft lower end (141) of axle servo motor seat constitute inclined hexagram cloth Office (154).

At a preferred aspect, described inclined hexagram layout (154) between the upper and lower away from more than left and right Spacing.

At a preferred aspect, described longitudinal pedestal is sliding along Y-axis by two parallel sliding tracks Dynamic.

At a preferred aspect, described four fixed bits (152) are positioned at described two parallel sliding tracks On.

At a preferred aspect, described main shaft lower end (141) is less than described two parallel sliding tracks.

Can be mutually combined between above preferred aspect, but the technical characteristic in various aspects also that This combination.

Compared to the prior art, this utility model has a following one or more advantage:

1. it is greatly improved main shaft and fixes the seat (142) rigidity of support to main shaft (14)；

2. strengthen the centre-to-centre spacing of two moving tracks (143) of Z axis thus improve longitudinal pedestal to master Axle fixes the rigidity of support of seat；

3. make main shaft fix seat and remain in that superpower constraint when range vacant state Rigidity.

Accompanying drawing explanation

Fig. 1 is that the vertical of seat fixed by the main shaft being mounted with main shaft of one specific embodiments of the present invention Body schematic diagram；

Fig. 2 is that seat fixed by the main shaft being installed on longitudinal pedestal of one specific embodiments of the present invention Schematic perspective view；

Fig. 3 is the schematic diagram of the inclined hexagram layout of one specific embodiments of the present invention；

Fig. 4 a is that the main shaft of one specific embodiments of the present invention fixes seat and main shaft along X/Y plane Sectional view；Fig. 4 b is the sectional view of the prior art design compared with Fig. 4 a.

Detailed description of the invention

The utility model is described in further detail to combine accompanying drawing below by specific embodiments.

Fig. 1 shows that the main shaft of the five-shaft linkage numerical control machining center that this utility model relates to is fixed One specific embodiments of seat.

Five-shaft linkage numerical control machining center (hereinafter referred to as lathe) can slide and AC along XYZ tri-axle Two axles rotate, and can be along XYZAC five-axle linkage.5-shaft linkage numerical control lathe generally comprise with Lower component:

Base；The horizontal pedestal being fixed on base and can slide along X-axis；It is fixed on horizontal base On seat and the work stage that can rotate along A axle and C axle；The column being fixed on base；It is fixed on On column and can along Y-axis slide longitudinal pedestal；It is fixed on longitudinal pedestal and can slide along Z axis Dynamic main shaft；With the automatic tool changer being fixed on column.

As Figure 2-3, longitudinal pedestal 15 uses ultrastability inclined hexagram height stiff assembly Topology layout 154, can farthest ensure High-speed machining stability and the cutting of machine tool Rigidity.This inclined hexagram layout 154 between the upper and lower away from more than between left and right away from.

The fixed position that corner, middle part is Y-axis slide block (four fixed bits 152) of hexagram partially, Being the fixed bit 153 of Z axis servo motor seat partially at hexagram top corner, its rigidity of support is direct Affect the ability of main spindle box height acceleration and deceleration motion, its key structure ensured for dynamic characteristics of spindle system Place.It is main shaft lower end 141 at the bottom drift angle of hexagram partially.Main shaft lower end 141 is less than vertical The sled position slided along Y-axis to pedestal.

It is installed on longitudinal pedestal 15 as in figure 2 it is shown, main shaft 14 fixes seat 142 by main shaft, Can fix seat 142 by main shaft to slide along Z axis, main shaft lower end 141 is in main shaft edge herein The lowermost position that Z axis slides up and down.

As shown in Fig. 1 and Fig. 4 a, main shaft is fixed seat 142 and is used Central Symmetric height rigid unitary Formula alveolate texture, it is designed as two moving tracks of Z axis 143 and spindle centerline 144 3 Bar person is in same plane (YZ plane), is greatly improved main shaft and fixes seat 142 to main shaft The rigidity of support of 14.By this design can strengthen the centre-to-centre spacing of two moving tracks 143 of Z axis from And improve longitudinal pedestal and main shaft is fixed the rigidity of support of seat so that main shaft fixes seat in maximum row Superpower restraint rigidity is remained in that during journey vacant state.

Additionally Z axis moving track 143 can ensure with spindle centerline 144 symmetrical expression co-planar designs Without unnecessary outstanding length between main shaft and Z axis moving track 143, thus improve Z axis moving rail The road 143 restraint rigidity to main shaft, and make whole upper lower transmission mechanism compacter and ensure The effectiveness of transmission.

Fig. 4 b shows a prior art design, and wherein spindle centerline 144 moves with Z axis There is outstanding long d between the plane at dynamic track 143 place, this outstanding length reduces Z axis moving rail The road 143 restraint rigidity to main shaft.

It should be noted that as space is limited, this utility model is not described in five-axle linkage number The further details of control lathe, such as along X, the implementation that Y and Z axis slide, Driving motor, servomotor, control system, tooling system, knife-changing system etc., but this The details of a little technical elements is all within the general knowledge and limit of power of those skilled in the art.Ability Field technique personnel also refer to the prior art literature that this utility model is quoted.This utility model draws Document be expressly incorporated herein in entirety by reference, original text is quoted from this seemingly.

Claims (8)

1. seat (142) fixed by the main shaft of a five-shaft linkage numerical control machining center, and described main shaft is fixed Main shaft (14) is installed on seat (142) and is fixed on longitudinal pedestal (15) by two moving tracks (143) On, it is characterised in that described two moving tracks (143) are in spindle centerline (144) three Same plane.

2. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 1 (142), it is characterised in that described main shaft is fixed seat and can be slided along Z axis.

3. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 1 (142), it is characterised in that described longitudinal pedestal is fixed on along Y by four fixed bits (152) On the slide rail that axle slides.

4. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 3 (142), it is characterised in that described four fixed bits and watching for fixing Z axis on longitudinal pedestal The position fixed above (153) and main shaft lower end (141) that take motor cabinet constitute inclined hexagram layout (154)。

5. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 4 (142), it is characterised in that described inclined hexagram layout (154) between the upper and lower away from more than between left and right away from.

6. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 3 (142), it is characterised in that described longitudinal pedestal is slided along Y-axis by two parallel sliding tracks.

7. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 6 (142), it is characterised in that described four fixed bits (152) are positioned on described two parallel sliding tracks.

8. seat fixed by the main shaft of five-shaft linkage numerical control machining center as claimed in claim 7 (142), it is characterised in that main shaft lower end (141) are less than described two parallel sliding tracks.