CN113649821B

CN113649821B - Double-beam double-drive five-axis machining center for integral marble

Info

Publication number: CN113649821B
Application number: CN202110989025.9A
Authority: CN
Inventors: 蔡宁
Original assignee: Hangzhou Taipu Machinery Technology Co ltd
Current assignee: Hangzhou Taipu Machinery Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-11-08
Anticipated expiration: 2041-08-26
Also published as: CN113649821A

Abstract

The invention discloses a double-beam double-drive five-axis machining center for integral marble, which comprises a machine tool base, a beam body, a mounting plate, a vibration transmission frame and a sealing rubber ring, wherein a viaduct is arranged on the machine tool base through a bolt, an annular linear motor is arranged on the viaduct through the bolt, a fixed shaft is arranged at the output end of the annular linear motor, a rotary worktable is arranged on the fixed shaft through the bolt, a first linear motor is arranged on the viaduct through the bolt, and a side surface linear guide rail and a top surface linear guide rail are fixedly arranged on the viaduct. The integral marble double-beam double-drive five-axis machining center is provided with the machine tool base and the viaduct, the whole machine tool body is made of the high-polymer artificial marble, the stability and the vibration absorption of the machine tool body are greatly improved, the stability, the service life and the efficiency of the machine tool are enhanced, the surface roughness of the machined part under the same condition is improved by 1-2 precision levels compared with that of a conventional cast iron machine tool body, and the thermal stability is good.

Description

Double-beam double-drive five-axis machining center for integral marble

Technical Field

The invention relates to the technical field of five-axis machining centers, in particular to an integral marble double-beam double-drive five-axis machining center.

Background

At present, five-axis machining centers in the market are divided into a head swing type and a cradle type. The head swing type is a fixed workbench, and five-axis machining is realized in a spindle swing mode; the cradle type spindle is fixed, and five-axis machining is achieved through a rotary swing mode of the workbench. Although the cradle type machining center has better rigidity, machining efficiency, machining precision and larger machining stroke than the head-swing type five-axis machining center, the cradle type machining center still has the defects;

1. most of machine tools in the current market are cast iron lathe beds, the cast iron is easily influenced by the environment, and the temperature difference change can influence the machining precision; in addition, in the machining process, large vibration can be generated, the vibration resistance of cast iron is poor, a large amount of pollution can be generated in the manufacturing of the cast iron lathe bed, secondary machining is needed, the period is long, and the environment is polluted;

2. in the bridge structure in the current market, a main shaft of a vertical beam body is assembled at the front end of a single cross beam, the self weight of the vertical beam body has downward hanging force, cutting vibration can be generated in the machining process, impact can be generated on the vertical beam body and the cross beam, and the problems of downward hanging of the vertical beam body, deformation of the cross beam and the like can be generated in the long term, so that the machining precision and the machining efficiency are influenced;

3. when a cross beam or a vertical beam in a conventional machining center runs to a stroke boundary in the running process, the machining center cannot stably and effectively buffer, early warn and stop the running cross beam or vertical beam, and when a program is wrong in the running process of the cross beam or vertical beam to cause stroke overload, collision or even impact on the stroke side is very easy to cause damage;

4. because a large amount of scraps are generated by long-time processing parts on the cradle, the conventional cradle type processing center cannot perform stable sealing protection work on the fixed shaft in the working process, and when a large amount of scraps are splashed or accumulated to the fixed shaft connected with the cradle, the use of the fixed shaft is adversely affected.

We have therefore proposed a two-beam dual-drive five-axis machining center for monolithic marble in order to solve the problems set forth above.

Disclosure of Invention

The invention aims to provide a double-beam five-axis machining center for integral marble, which aims to solve the problems that the vibration resistance of a machine tool in the current market is poor, the manufacture of a cast iron lathe body causes a large amount of pollution, secondary machining is needed, the period is long, the environment is polluted, the machining precision and the machining efficiency are influenced due to the fact that a bridge structure in the current market causes the problems that a vertical beam body is hung downwards, a beam deforms and the like, the beam or the vertical beam in the conventional machining center cannot stably and effectively buffer, early warn and stop the beam or the vertical beam in the operation process, and the conventional cradle type machining center cannot stably seal and protect a fixed shaft in the operation process.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a five-axis machining center of two crossbeams dual drive of whole marble, includes lathe base, crossbeam body, mounting panel, passes and shakes frame and sealing rubber circle, the overhead bridge is installed to the bolt on the lathe base, and the bolt installs annular linear electric motor on the overhead bridge, the fixed axle is installed to annular linear electric motor's output, and the bolt installs rotary worktable on the fixed axle, first linear electric motor is installed to the bolt on the overhead bridge, and installs on the overhead bridge and be fixed with side linear guide and top surface linear guide, the overhead bridge is connected with the crossbeam body through top surface linear guide, and the overhead bridge is connected with the crossbeam curb plate through side linear guide to the installation is fixed with the crossbeam body on the crossbeam curb plate, second linear electric motor is installed to the bolt on the crossbeam body, and installs on the crossbeam body and be fixed with inner face linear guide to the crossbeam body is connected with the cross slip table through inner face linear guide, the cross slip table is connected with the vertical beam body through outer linear guide, and the bolt installation has third linear electric motor on the vertical beam body to the installation is fixed with outside linear guide and nitrogen gas balance cylinder on the vertical beam body.

Preferably, the overpass symmetric distribution is in the left and right sides of machine tool base, and overpass and crossbeam curb plate one-to-one to the left and right sides symmetric distribution of crossbeam curb plate has the crossbeam body, and the crossbeam body of both sides is connected with the both sides of cross slip table respectively through corresponding inner face linear guide, and the material of machine tool base, overpass, crossbeam body and crossbeam curb plate is polymer artificial marble simultaneously.

Preferably, the fixed epaxial welded fastening of axle has the rolling disc, and rotates on the rolling disc and be connected with the pole that links up, the top swing joint of pole that links up has the backup pad, and the spacing sliding connection of backup pad is at the spacing inslot to the spacing groove is seted up on annular linear electric motor, and the cover is equipped with the sealing rubber circle in the backup pad moreover.

Preferably, the installation is fixed with the mounting panel on crossbeam body and the overpass, and welded fastening has a first damping section of thick bamboo on the mounting panel, the cover is equipped with buffer spring on the first damping section of thick bamboo, and buffer spring's bottom welded fastening is on the mounting panel, buffer spring's top welded fastening is on promoting the piece, and promotes a welded fastening on the top of first damping section of thick bamboo, swing joint has the connecting rod on the mounting panel, and the top swing joint of connecting rod has and promotes the piece, it has the rubber slab to promote the last screw connection of piece, and equal bolted mounting has the sensor on rubber slab and the mounting panel.

Preferably, this internal welded fastening of crossbeam has the biography frame that shakes, and passes welded fastening on the frame that shakes and have the fixed plate, welded fastening has a second damping cylinder on the fixed plate, and second damping cylinder overcoat is equipped with damping spring, damping spring's bottom welded fastening is on the fixed plate, and damping spring's top welded fastening is in the bottom of link, link welded fastening is on the top of second damping cylinder, and the top welded fastening of link is originally internal at the crossbeam.

Preferably, the left and right sides symmetric distribution of mounting panel has the connecting rod, and the connecting rod with promote the piece one-to-one to the connecting rod with promote between piece and the mounting panel and be articulated, the connecting rod is connected in the middle part that promotes the piece moreover.

Preferably, the top end face of the pushing block on the connecting rod and the top end face of the pushing block on the first damping cylinder are located on the same horizontal plane, the pushing blocks on the two adjacent sides form an elastic telescopic structure through rubber plates, sensors are fixed in the middle of the rubber plates, and the rubber plates and the mounting plate are distributed in parallel.

Preferably, the vibration transmission frame is bifurcated, the central axis of the vibration transmission frame and the central axis of the second linear motor are located on the same horizontal central line, the outer end face of the second damping cylinder is attached to the inner end face of the damping spring, the second damping cylinder is fixed to the middle of the bottom of the connecting frame, and the second damping cylinder and the connecting frame are combined to form a Y shape.

Preferably, the rotating disc is provided with connecting rods at equal angles, the connecting rods are hinged to the middle part of the bottom of the supporting plate, the supporting plate is arc-shaped, the side end face of the sealing rubber ring is respectively attached to the side end face of the annular linear motor and the side end face of the cradle, and the distance between the top end face of the cradle and the fixing shaft is equal to the maximum distance between the fixing shaft and the top end face of the sealing rubber ring.

Compared with the prior art, the invention has the beneficial effects that: the double-beam double-drive five-axis machining center for the integral marble;

(1) The machining center is provided with a cross beam body, linear guide rails are assembled on the top surfaces and the outer side surfaces of two viaducts, so that the vertical stress can be borne, and the transverse stress can also be borne, the stability and the rigidity of a machine tool are greatly enhanced, the machining center adopts a structure that a double cross beam clamps a middle vertical beam body, the lower hanging force of a single cross beam with a deviated gravity center is avoided, the main shaft vertical beam body is enabled to always process the central position, the stress is uniform, the stability and the rigidity of the machine tool are greatly enhanced, in addition, except for the C shaft of a workbench, the C shaft of the workbench is driven by a single shaft, other four shafts are driven by a linear motor in a double-driving mode, the driving force of each shaft is greatly improved, the machine tool is enabled to process more rapidly, more stably and more greatly cutting force, and the traditional lead screw nut structure of the double cross beams is adopted by the linear motor, the problems that the traditional lead screw is stressed and worn and blocked are avoided, faster response can be provided, and more accurate positioning can be realized;

(2) The machining center is provided with an organic bed base and a viaduct, the whole machine body is made of macromolecule artificial marble, the stability and the vibration absorption of the machine body are greatly improved, the stability, the service life and the efficiency of the machine tool are enhanced, the surface roughness of machined parts under the same condition is improved by 1-2 precision levels compared with that of a conventional cast iron bed machine, the thermal stability is good, the deformation quantity generated along with the temperature change is 1/20 of that of cast iron, the precision maintenance is good, the possibility of displacement caused by collision with a cutter is zero, the machine tool is corrosion-resistant, the machine tool has good corrosion resistance to oil, cooling liquid and other corrosive liquid, meanwhile, the energy is saved and the environment is protected, compared with the cast iron, the energy consumption of one machine tool is only 1% of the cast iron, 700 degrees electricity is needed for each ton of molten cast iron, and only 5-7 degrees of electricity is needed for each ton of forming of the machine tool body;

(3) The processing center is provided with a first damping cylinder, a rubber plate and sensors, when a cross beam body moves to a side on a viaduct, the first damping cylinder and a pushing block are combined with a buffer spring to perform buffer protection on the cross beam body, and the pushing blocks on connecting rods on two sides are combined with corresponding rubber plates to further improve the buffer protection effect, so that the sensors on the rubber plates can be driven to be close to the sensors on the mounting plate;

(4) The machining center is provided with a vibration transmission frame and a second damping cylinder, vibration generated by the linear guide rail on the inner surface of the beam body can be transmitted to the second damping cylinder through the vibration transmission frame and the fixing plate, at the moment, the second damping cylinder can perform further damping work by combining with a damping spring, and meanwhile, the vibration generated by the linear guide rail on the inner surface can be transmitted to the guide rail on the top after being buffered by combining with the connecting frame on the second damping cylinder and can be offset with the vibration generated by the guide rail on the top, so that the vibration generated by the linear guide rail on the inner surface in the beam body and the guide rail on the top can be absorbed and buffered at the same time, and the use safety and the stability of the machining center are effectively improved;

(5) This machining center is provided with the sealing rubber circle, when annular linear electric motor passes through the fixed axle and drives the cradle rotation, the fixed axle can drive the backup pad on each joint pole inwards to move simultaneously through the rolling disc, the sealing rubber circle shrink this moment, after work, the fixed axle drives the cradle home recovery, the backup pad on each joint pole can drive the sealing rubber circle and extend to and the cradle parallel and level this moment, can carry out the propelling movement clearance with the piece between cradle and the annular linear electric motor under the impetus that combines the sealing rubber circle, can prevent effectively that the piece that long-time processing produced on the rotary worktable from piling up in fixed axle department, and then can guarantee the long-time operating condition's of fixed axle stability, machining center's use variety has been increased.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the ring-shaped linear motor of the present invention;

FIG. 3 is a schematic top view of the connecting rod of the present invention;

FIG. 4 is a schematic front view of the viaduct of the present invention;

FIG. 5 is a schematic top view of the vertical beam body of the present invention;

FIG. 6 is a schematic view of a second damping cylinder according to the present invention;

FIG. 7 is a schematic top view of the vibration-transmitting frame of the present invention;

FIG. 8 is a schematic view of a rotating disk according to the present invention;

FIG. 9 is a schematic side view of the sealing rubber ring of the present invention.

In the figure: 1. a machine tool base; 2. a viaduct; 3. an annular linear motor; 4. a fixed shaft; 5. a cradle; 6. a rotary table; 7. a first linear motor; 8. a lateral linear guide rail; 9. a top surface linear guide rail; 10. a beam body; 11. a beam side plate; 12. a second linear motor; 13. an inner face linear guide rail; 14. a cross sliding table; 15. a vertical beam body; 16. a third linear motor; 17. an outer linear guide rail; 18. a nitrogen balancing cylinder; 19. mounting a plate; 20. a first damping cylinder; 21. a buffer spring; 22. a pushing block; 23. a connecting rod; 24. a rubber plate; 25. a sensor; 26. a vibration transmission frame; 27. a fixing plate; 28. a second damping cylinder; 29. a damping spring; 30. a connecting frame; 31. rotating the disc; 32. a connecting rod; 33. a support plate; 34. sealing the rubber ring; 35. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a double-beam double-drive five-axis machining center for integral marble comprises a machine tool base 1, a viaduct 2, an annular linear motor 3, a fixed shaft 4, a cradle 5, a rotary worktable 6, a first linear motor 7, a side linear guide rail 8, a top surface linear guide rail 9, a beam body 10, a beam side plate 11, a second linear motor 12, an inner surface linear guide rail 13, a cross sliding table 14, a vertical beam body 15, a third linear motor 16, an outer surface linear guide rail 17, a nitrogen balancing cylinder 18, a mounting plate 19, a first damping cylinder 20, a buffer spring 21, a pushing block 22, a connecting rod 23, a rubber plate 24, a sensor 25, a vibration transmission frame 26, a fixed plate 27, a second damping cylinder 28, a damping spring 29, a connecting frame 30, a rotating disc 31, a connecting rod 32, a support plate 33, a sealing rubber ring 34 and a limiting groove 35, wherein the viaduct 2 is mounted on the machine tool base 1 through a bolt, the viaduct 2, the annular linear motor 3 is mounted on the viaduct 2, the overhead cross beam body 2 is mounted through the linear guide rail 13, the cross beam body 10, the linear guide rail 11 is connected with the vertical beam body 13 through the cross beam body 10, the linear guide rail 13 is mounted on the cross beam body 10, the linear guide rail 13, the cross beam body 10, the linear guide rail 13 is connected with the linear guide rail 10, the linear guide rail 13 through the linear guide rail 13, and an outer linear guide rail 17 and a nitrogen balance cylinder 18 are fixedly arranged on the vertical beam body 15.

2 symmetric distribution of overpass are in machine tool foundation 1's the left and right sides, and

overpass

2 and 11 one-to-ones of crossbeam curb plate, and the left and right sides symmetric distribution of crossbeam curb plate 11 has crossbeam body 10, and the crossbeam body 10 of both sides is connected with the both sides of cross slip table 14 respectively through corresponding inner face linear guide 13, machine tool foundation 1 simultaneously, overpass 2, the material of crossbeam body 10 and crossbeam curb plate 11 is polymer artificial marble, can guarantee machine tool foundation 1, overpass 2, the stability of

crossbeam body

10 and 11 working effects of crossbeam curb plate, and then can guarantee the stability of the whole operating condition of machining center.

Welded fastening has rolling disc 31 on fixed axle 4, and rotate on the rolling disc 31 and be connected with linking pole 32, the top swing joint that links up pole 32 has backup pad 33, and the spacing sliding connection of backup pad 33 is in spacing groove 35, and spacing groove 35 is seted up on annular linear electric motor 3, and the cover is equipped with sealing rubber circle 34 on the backup pad 33, can guarantee that backup pad 33 improves spacing groove 35 and can carry out convenient stable spacing slip work on annular linear electric motor 3, and then can guarantee the stable support work of follow-up sealing rubber circle 34.

Mounting panel 19 is fixedly installed on crossbeam body 10 and overpass 2, and welded fastening has first damping cylinder 20 on mounting panel 19, the cover is equipped with buffer spring 21 on the first damping cylinder 20, and the bottom welded fastening of buffer spring 21 is on mounting panel 19, buffer spring 21's top welded fastening is on promoting piece 22, and promote the top of piece 22 welded fastening at first damping cylinder 20, swing joint has connecting rod 23 on the mounting panel 19, and the top swing joint of connecting rod 23 has and promotes piece 22, it has rubber slab 24 to promote the last screw connection of piece 22, and equal bolted mounting has sensor 25 on rubber slab 24 and the mounting panel 19, can guarantee that first damping cylinder 20 is in. The stability of the working effect on the mounting plate 19 increases the use stability of the machining center

The vibration transmission frame 26 is welded and fixed in the beam body 10, the fixing plate 27 is welded and fixed on the vibration transmission frame 26, the second damping cylinder 28 is welded and fixed on the fixing plate 27, the damping spring 29 is sleeved outside the second damping cylinder 28, the bottom end of the damping spring 29 is welded and fixed on the fixing plate 27, the top end of the damping spring 29 is welded and fixed at the bottom end of the connecting frame 30, the connecting frame 30 is welded and fixed at the top end of the second damping cylinder 28, the top end of the connecting frame 30 is welded and fixed in the beam body 10, the stability of the working state of the damping spring 29 on the second damping cylinder 28 can be guaranteed, the second damping cylinder 28 is combined with the damping spring 29, the damping effect of the machining center can be further improved, and the use safety of the machining center is improved.

The left and right sides symmetric distribution of mounting panel 19 has connecting rod 23, and connecting rod 23 with promote piece 22 one-to-one, and connecting rod 23 with promote and be articulated between piece 22 and the mounting panel 19, connecting rod 23 is connected in the middle part that promotes piece 22 moreover, can guarantee connecting rod 23 and promote the stability of connection state between piece 22 and the mounting panel 19, has increased machining center's use variety and stability.

The top face that promotes piece 22 on connecting rod 23 and the first damping section of thick bamboo 20 on promotes piece 22 is located same horizontal plane, and adjacent both sides promote piece 22 and pass through rubber slab 24 constitution elastic telescopic structure, and the middle part of rubber slab 24 is fixed with sensor 25, be parallel distribution between rubber slab 24 and the mounting panel 19, can guarantee that the promotion piece 22 on connecting rod 23 and the first damping section of thick bamboo 20 can carry out stable convenient buffering work to crossbeam body 10 simultaneously, effectively increased buffering effect.

The vibration transmission frame 26 is bifurcated, the central axis of the vibration transmission frame 26 and the central axis of the second linear motor 12 are located on the same horizontal central line, the outer end face of the second damping cylinder 28 is attached to the inner end face of the damping spring 29, the second damping cylinder 28 is fixed to the middle of the bottom of the connecting frame 30, the second damping cylinder 28 and the connecting frame 30 are combined to form a Y shape, it can be guaranteed that the second damping cylinder 28 can stably offset vibration and vibration of a top guide rail through the connecting frame 30, and the use safety of the machining center is improved.

The connecting rods 32 are distributed on the rotating disc 31 at equal angles, the connecting rods 32 are hinged to the middle part of the bottom of the supporting plate 33, the supporting plate 33 is arc-shaped, the side end face of the sealing rubber ring 34 is respectively attached to the side end face of the annular linear motor 3 and the side end face of the cradle 5, the distance between the top end face of the cradle 5 and the fixing shaft 4 is equal to the maximum distance between the fixing shaft 4 and the top end face of the sealing rubber ring 34, the sealing rubber ring 34 can be ensured to perform stable sealing protection work on the gap between the annular linear motor 3 and the cradle 5, and further the stability of the subsequent cradle 5 working state can be ensured.

The working principle is as follows: before the integral marble double-beam double-drive five-axis machining center is used, the integral condition of the machining center needs to be checked firstly, and normal work can be determined;

the machine tool body is made of macromolecule artificial marble, and with reference to the figures 1-5, two sides of a machine tool base 1 are respectively provided with a viaduct 2, a circular hole is arranged in each viaduct 2, an annular linear motor 3 is arranged in each circular hole, a cradle 5 made of mineral castings is arranged in each two annular linear motors 3, and a DD motor independently developed by our company, namely a rotary worktable 6, is carried; a top surface linear guide rail 9 is installed on a top platform of the viaduct 2, a first linear motor 7 is installed on the upper portion of the outer side of the viaduct 2, and a side surface linear guide rail 8 is installed below the first linear motor 7; the left and right viaducts 2 are provided with two side linear guide rails 8, two top linear guide rails 9 and two first linear motors 7 for loading two beam bodies 10; a second linear motor 12 is respectively arranged in the middle of the inner sides of the two beam bodies 10, an inner surface linear guide rail 13 is respectively arranged above and below the second linear motor 12, and the two beam bodies 10 are respectively provided with a cross sliding table 14; the middle vertical beam body 15 is square, two outer linear guide rails 17 are respectively assembled on two sides of the middle vertical beam body and connected with the cross sliding table 14, and a third linear motor 16 and a nitrogen balancing cylinder 18 are assembled on the other two sides of the middle vertical beam body and play a role in buffering a main shaft;

in the working process of the machining center, with reference to fig. 1-7, the rigidity of the spindle structure of the integral marble lathe bed double-beam body 10 clamping the vertical beam body 15 is greatly improved, the vibration absorption performance is more than ten times of cast iron, the surface roughness of the machined part under the same condition is improved by 1-2 precision levels compared with that of a conventional cast iron lathe bed machine tool, the beam body 10 serves as a main core part, when the inner-surface linear guide rail 13 and the top guide rail vibrate in the working process, the vibration generated by the inner-surface linear guide rail 13 can be transmitted to a second damping cylinder 28 through a vibration transmission frame 26 and a fixing plate 27, at the moment, the second damping cylinder 28 can further perform vibration absorption work by combining with a damping spring 29, meanwhile, the vibration generated by the inner-surface linear guide rail 13 can be transmitted to the top guide rail after being buffered by combining with a connecting frame 30 by the second damping cylinder 28, and can be offset with the vibration generated by the top guide rail, and further the vibration generated by the inner-surface linear guide rail 13 and the top guide rail in the machining center 10 can be absorbed and buffered, so that the use safety and the stability of the machining center are effectively improved;

in the working process of the beam body 10, with reference to fig. 1-5, when the beam body 10 moves to the side on the viaduct 2, the first damping cylinder 20 and the pushing block 22 at the top of the first damping cylinder can perform primary buffering protection on the beam body 10 in combination with the buffer spring 21, and meanwhile, the beam body 10 can push the pushing blocks 22 on the connecting rods 23 at two sides to move towards two sides simultaneously under the action of movement, and the corresponding rubber plate 24 can further improve the buffering protection effect, and the pushing blocks 22 on the connecting rods 23 at two sides can drive the rubber plate 24 to move backwards while moving towards two sides, so that the sensors 25 on the rubber plate 24 can be driven to gradually approach the sensors 25 on the mounting plate 19, and when the beam body 10 is too close to the side, the sensors 25 at two sides can perform early warning and subsequent work in combination with the processing center body, so as to effectively prevent the stroke overload of the beam body 10, and similarly, the stroke overload of the cross sliding table 14 can be effectively prevented;

when the annular linear motor 3 drives the cradle 5 to rotate through the fixed shaft 4, referring to fig. 1, 4, 8 and 9, the fixed shaft 4 can drive the support plates 33 on the connecting rods 32 to move linearly inwards at the same time in the limit grooves 35 on the annular linear motor 3 through the rotating disc 31, at this time, the sealing rubber rings 34 can be contracted under the elastic recovery action, after the work is finished, the fixed shaft 4 drives the cradle 5 to recover to the original position, at this time, the support plates 33 on the connecting rods 32 can drive the sealing rubber rings 34 to extend to be flush with the cradle 5, and the chips between the cradle 5 and the annular linear motor 3 can be pushed and cleaned under the pushing action of the sealing rubber rings 34, so that the chips generated by long-time processing on the rotary worktable 6 can be effectively prevented from being accumulated at the fixed shaft 4 to cause adverse effects on the fixed shaft 4, and further, the long-time working state stability of the fixed shaft 4 can be ensured, which is the working process of the whole machining center, and the details which are not described in the description in this specification are well known by the professional rubber rings 34.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a five machining centers of two crossbeams dual drive of whole marble, includes lathe base (1), crossbeam body (10), mounting panel (19), passes frame (26) and sealing rubber circle (34) that shakes, its characterized in that: a viaduct (2) is arranged on the machine tool base (1) through bolts, an annular linear motor (3) is arranged on the viaduct (2) through bolts, the output end of the annular linear motor (3) is provided with a fixed shaft (4), a rotary worktable (6) is arranged on the fixed shaft (4) through bolts, a first linear motor (7) is arranged on the viaduct (2) through bolts, and a side surface linear guide rail (8) and a top surface linear guide rail (9) are fixedly arranged on the viaduct (2), the viaduct (2) is connected with a beam body (10) through a top surface linear guide rail (9), and the viaduct (2) is connected with a cross beam side plate (11) through a side linear guide rail (8), and a beam body (10) is fixedly arranged on the beam side plate (11), a second linear motor (12) is installed on the beam body (10) through bolts, and the beam body (10) is fixedly provided with an inner surface linear guide rail (13), and the beam body (10) is connected with a cross sliding table (14) through an inner face linear guide rail (13), the cross sliding table (14) is connected with a vertical beam body (15) through an external linear guide rail (17), and a third linear motor (16) is arranged on the vertical beam body (15) through a bolt, an external linear guide rail (17) and a nitrogen balance cylinder (18) are fixedly arranged on the vertical beam body (15);

the viaduct (2) is symmetrically distributed on the left side and the right side of the machine tool base (1), the viaduct (2) corresponds to the cross beam side plates (11) one by one, the cross beam bodies (10) are symmetrically distributed on the left side and the right side of the cross beam side plates (11), the cross beam bodies (10) on the two sides are respectively connected with the two sides of the cross sliding table (14) through corresponding inner face linear guide rails (13), and meanwhile the machine tool base (1), the viaduct (2), the cross beam bodies (10) and the cross beam side plates (11) are all made of polymer artificial marble;

a rotating disc (31) is fixedly welded on the fixed shaft (4), a linking rod (32) is rotatably connected on the rotating disc (31), a supporting plate (33) is movably connected to the top end of the linking rod (32), the supporting plate (33) is connected in a limiting groove (35) in a limiting sliding mode, the limiting groove (35) is formed in the annular linear motor (3), and a sealing rubber ring (34) is sleeved on the supporting plate (33);

the beam body (10) and the viaduct (2) are respectively fixedly provided with a mounting plate (19), the mounting plate (19) is fixedly welded with a first damping cylinder (20), the first damping cylinder (20) is sleeved with a buffer spring (21), the bottom end of the buffer spring (21) is fixedly welded on the mounting plate (19), the top end of the buffer spring (21) is fixedly welded on a pushing block (22), the pushing block (22) is fixedly welded on the top end of the first damping cylinder (20), the mounting plate (19) is movably connected with a connecting rod (23), the top end of the connecting rod (23) is movably connected with the pushing block (22), the pushing block (22) is connected with a rubber plate (24) through screws, and the rubber plate (24) and the mounting plate (19) are respectively provided with a sensor (25) through bolts;

the utility model discloses a damping device, including crossbeam body (10), welded fastening has the biography frame of shaking (26) in crossbeam body (10), and passes welded fastening on the frame of shaking (26) and have fixed plate (27), welded fastening has second damping cylinder (28) on fixed plate (27), and second damping cylinder (28) overcoat is equipped with damping spring (29), damping spring (29)'s bottom welded fastening is on fixed plate (27), and damping spring (29)'s top welded fastening is in the bottom of link (30), link (30) welded fastening is on the top of second damping cylinder (28), and the top welded fastening of link (30) is in crossbeam body (10).

2. The double-beam five-axis drive machining center for integral marble as claimed in claim 1, wherein the double-beam five-axis drive machining center for integral marble comprises: the left and right sides symmetric distribution of mounting panel (19) has connecting rod (23), and connecting rod (23) with promote piece (22) one-to-one to connecting rod (23) with promote between piece (22) and mounting panel (19) and be articulated, connecting rod (23) are connected in the middle part that promotes piece (22) moreover.

3. The double-beam five-axis drive machining center for integral marble as claimed in claim 1, wherein the double-beam five-axis drive machining center for integral marble comprises: the top end face of pushing block (22) on connecting rod (23) and first damping cylinder (20) go up the top end face that pushes block (22) and be located same horizontal plane, and adjacent both sides push block (22) and constitute elastic telescopic structure through rubber slab (24), and the middle part of rubber slab (24) is fixed with sensor (25), is parallel distribution moreover between rubber slab (24) and mounting panel (19).

4. The double-beam double-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: the vibration transmission frame (26) is bifurcated, the central axis of the vibration transmission frame (26) and the central axis of the second linear motor (12) are located on the same horizontal central line, the outer end face of the second damping cylinder (28) is attached to the inner end face of the damping spring (29), the second damping cylinder (28) is fixed to the middle of the bottom of the connecting frame (30), and the second damping cylinder (28) and the connecting frame (30) are combined to form a Y shape.

5. The double-beam double-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: connecting rods (32) are distributed on the rotating disc (31) at equal angles, the connecting rods (32) are hinged to the middle of the bottom of the supporting plate (33), the supporting plate (33) is arc-shaped, the side end face of the sealing rubber ring (34) is respectively attached to the side end face of the annular linear motor (3) and the side end face of the cradle (5), and the distance between the top end face of the cradle (5) and the fixing shaft (4) is equal to the maximum distance between the fixing shaft (4) and the top end face of the sealing rubber ring (34).