CN113649821A

CN113649821A - Two vertical beam dual drive five-axis machining center of whole marble

Info

Publication number: CN113649821A
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: 2021-11-16
Anticipated expiration: 2041-08-26
Also published as: CN113649821B

Abstract

The invention discloses a double-drive five-axis machining center for integral marble double vertical beams, which comprises a machine tool base, a cross 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 bolts, an annular linear motor is arranged on the viaduct through the bolts, 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 bolts, a first linear motor is arranged on the viaduct through the bolts, and a side surface linear guide rail and a top surface linear guide rail are fixedly arranged on the viaduct. This two vertical beam dual drive five-axis machining centers of whole marble sets up organic bed base and overpass, and the whole artificial marble that adopts of lathe bed has very big improvement the stability and the shock absorption nature of lathe bed, has strengthened the stability and the life and the efficiency of lathe, and the same condition surface roughness of part that processes out, improves 1-2 precision levels than conventional cast iron lathe bed, and thermal stability is good.

Description

Two vertical beam dual drive five-axis machining center of whole marble

Technical Field

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

Background

At present, five-axis machining centers in the market are divided into a head-swinging 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;

firstly, most machine tools in the current market are cast iron 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;

secondly, 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;

thirdly, 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 is extremely easy to cause damage to the stroke side;

fourthly, because a large amount of scraps are generated by long-time machining parts on the cradle, the conventional cradle type machining 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, adverse effects are caused on the use of the fixed shaft.

Therefore, we propose a double-drive five-axis machining center for a whole marble double-vertical beam, so as to solve the problems proposed in the above.

Disclosure of Invention

The invention aims to provide a double-drive five-axis machining center for a double vertical beams of an 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 machine 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 hangs down, a cross beam deforms and the like, the cross beam or the vertical beam in the conventional machining center cannot stably and effectively buffer, early warn and stop the operation of the cross beam or the vertical beam in the operation process, and the stable sealing protection operation of the fixed shaft cannot be performed in the conventional cradle type machining center in the working process.

In order to achieve the purpose, the invention provides the following technical scheme: a double-drive five-axis machining center with double vertical beams for integral marble comprises a machine tool base, a cross beam body, a mounting plate, a vibration transmission frame and a sealing rubber ring, wherein a viaduct is installed on the machine tool base through bolts, an annular linear motor is installed on the viaduct through bolts, a fixed shaft is installed at the output end of the annular linear motor, a rotary worktable is installed on the fixed shaft through bolts, a first linear motor is installed on the viaduct through bolts, a side linear guide rail and a top linear guide rail are fixedly installed on the viaduct, the viaduct is connected with the cross beam body through the top linear guide rail, a cross beam side plate is connected with the cross beam body through the side linear guide rail, the cross beam body is fixedly installed on the cross beam body through bolts, a second linear motor is installed on the cross beam body through bolts, an inner linear guide rail is fixedly installed on the cross beam body, and a cross sliding table is connected with the cross beam body through the inner linear guide rail, the cross sliding table is connected with a vertical beam body through an outer linear guide rail, a third linear motor is installed on the vertical beam body through a bolt, and an outer linear guide rail and a nitrogen balance cylinder are installed and fixed 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 piece on the screw connection, 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 section of thick bamboo on the fixed plate, and second damping section of thick bamboo 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 a second damping section of thick bamboo, 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-drive five-axis machining center for the integral marble double vertical beams;

(1) the machining center is provided with a beam body, linear guide rails assembled on the top surfaces and the outer side surfaces of two viaducts can bear vertical stress and also can bear horizontal stress, the stability and the rigidity of a machine tool are greatly enhanced, the machining center adopts a structure that a double-beam clamps a middle vertical beam body, the lower hanging force of a single 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 other four shafts are all in a linear motor double-drive structure, the driving force of each shaft is greatly improved, the machine tool is enabled to process more quickly, more stably and more greatly, in addition, the linear motor is adopted to take the structure of the traditional lead screw nut of the double vertical beams, the problem that the traditional lead screw is stressed and abraded and the lead screw is blocked is solved, and faster response can be provided, more accurate positioning;

(2) the machining center is provided with the machine tool base and the viaduct, the whole machine tool body is made of the high-molecular 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 processed part under the same condition is improved by 1-2 precision grades compared with the conventional cast iron lathe bed machine tool, has good thermal stability, generates 1/20 with the deformation quantity of cast iron along with the temperature change, has good precision maintenance, zero possibility of displacement caused by the colliding blade and corrosion resistance, the energy-saving and environment-friendly machine tool has good corrosion resistance to oil, cooling liquid and other corrosive liquid, is energy-saving and environment-friendly, and has the advantages that compared with cast iron, the energy consumption of one machine tool is only 1% of that of the cast iron, 700 degrees of electricity are needed for melting each ton of the cast iron, and only 5-7 degrees of electricity are needed for forming each ton 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 the side on a viaduct, the first damping cylinder and a pushing block are combined with a buffer spring to buffer and protect the cross beam body, and the pushing blocks on connecting rods on the two sides are combined with corresponding rubber plates to further improve the buffering and protecting 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 overall perspective view of the present invention;

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

FIG. 3 is a schematic top view of a connecting rod according to 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 structural 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-vertical-beam dual-drive five-axis machining center for integral marble comprises a machine tool base 1, an overhead bridge 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 linear guide rail 9, a cross beam body 10, a cross beam side plate 11, a second linear motor 12, an inner linear guide rail 13, a cross sliding table 14, a vertical beam body 15, a third linear motor 16, an outer 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 overhead bridge 2 is installed on the machine tool base 1 through bolts, and the annular linear motor 3 is installed on the overhead bridge 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 a bolt, a first linear motor 7 is arranged on the viaduct 2 through a bolt, and the viaduct 2 is fixedly provided with a side surface linear guide rail 8 and a top surface linear guide rail 9, the viaduct 2 is connected with a beam body 10 through the top surface linear guide rail 9, the viaduct 2 is connected with a beam side plate 11 through the side surface linear guide rail 8, a beam body 10 is fixedly arranged on the beam side plate 11, a second linear motor 12 is arranged on the beam body 10 through a bolt, an inner face linear guide rail 13 is fixedly arranged on the beam body 10, and the cross beam body 10 is connected with a cross sliding table 14 through an inner surface linear guide rail 13, the cross sliding table 14 is connected with a vertical beam body 15 through an outer surface linear guide rail 17, a third linear motor 16 is installed on the vertical beam body 15 through a bolt, 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 the left and right sides of machine tool base 1, and

overpass

2 and 11 one-to-one 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 base 1 simultaneously, overpass 2, the material of crossbeam body 10 and crossbeam curb plate 11 is polymer artificial marble, can guarantee machine tool base 1, overpass 2, the stability of crossbeam body 10 and the 11 work 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-vertical-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 shock 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 is used as a main core part, when the inner surface linear guide rail 13 and the top guide rail in the machining center 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 perform further shock absorption work by combining with a shock absorption spring 29, and meanwhile, the second damping cylinder 28 can transmit the vibration generated by the inner surface linear guide rail 13 to the top guide rail after being combined with a connecting frame 30, the vibration generated at the top guide rail is offset, so that the vibration generated by the inner-surface linear guide rail 13 inside the buffering beam body 10 and the top guide rail can be absorbed simultaneously, and the use safety and the stability of the machining center are effectively improved;

and 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 thereof in combination with the buffer spring 21 can perform primary buffer protection on the beam body 10, and at the same time, the beam body 10 can push the pushing blocks 22 on the connecting rods 23 at both sides to move towards both sides simultaneously under the action of movement, and the corresponding rubber plate 24 can further improve the buffer protection effect, and the pushing blocks 22 on the connecting rods 23 at both sides can drive the rubber plate 24 to move backwards while moving towards both sides, so as to drive the sensors 25 on the rubber plate 24 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 both sides in combination with the processing center body can perform early warning and subsequent stopping work in time, the stroke overload of the beam body 10 can be effectively prevented, 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, with reference to fig. 1, 4, 8 and 9, the fixed shaft 4 can drive the support plates 33 on the connecting rods 32 to move straightly inwards 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 action of elastic return, after the work is finished, the fixed shaft 4 drives the cradle 5 to return 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 stability of the long-time working state of the fixed shaft 4 can be ensured, the above is the working process of the whole machining center, and the details which are not described in detail in this specification, such as the ring-shaped linear motor 3, the rotary table 6, the nitrogen balance cylinder 18, the first damping cylinder 20, the sensor 25 and the sealing rubber ring 34, are well known in the prior art to those skilled in the art.

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 two vertical beam dual drive five-axis machining centers 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: the machine tool is characterized in that an elevated bridge (2) is mounted on a machine tool base (1) through bolts, an annular linear motor (3) is mounted on the elevated bridge (2) through bolts, a fixing shaft (4) is mounted at the output end of the annular linear motor (3), a rotary worktable (6) is mounted on the fixing shaft (4) through bolts, a first linear motor (7) is mounted on the elevated bridge (2) through bolts, a lateral linear guide rail (8) and a top linear guide rail (9) are fixedly mounted on the elevated bridge (2), the elevated bridge (2) is connected with a cross beam body (10) through the top linear guide rail (9), the elevated bridge (2) is connected with a cross beam side plate (11) through the lateral linear guide rail (8), the cross beam body (10) is fixedly mounted on the cross beam side plate (11), a second linear motor (12) is mounted on the cross beam body (10) through bolts, and an inner face linear guide rail (13) is fixedly mounted on the cross beam body (10), and crossbeam body (10) are connected with cross slip table (14) through inner face linear guide (13), cross slip table (14) are connected with through outside linear guide (17) and erect roof beam body (15), and erect roof beam body (15) and go up the bolt and install third linear electric motor (16) to erect and install on roof beam body (15) and be fixed with outside linear guide (17) and nitrogen gas balance cylinder (18).

2. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: viaduct (2) symmetric distribution is in the left and right sides of machine tool base (1), and viaduct (2) and crossbeam curb plate (11) one-to-one to the left and right sides symmetric distribution of crossbeam curb plate (11) has crossbeam body (10), and the crossbeam body (10) of both sides are connected with the both sides of cross slip table (14) respectively through corresponding inner face linear guide (13), and the material of machine tool base (1), viaduct (2), crossbeam body (10) and crossbeam curb plate (11) is polymer artificial marble simultaneously.

3. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: fixed axle (4) are gone up welded fastening and are had rolling disc (31), and rotate on rolling disc (31) and be connected with linking pole (32), the top swing joint of linking pole (32) has backup pad (33), and the spacing sliding connection of backup pad (33) is in spacing groove (35) to spacing groove (35) are seted up on annular linear electric motor (3), and the cover is equipped with sealing rubber circle (34) on backup pad (33) moreover.

4. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: all the installation is fixed with mounting panel (19) on crossbeam body (10) and viaduct (2), and welded fastening has first damping cylinder (20) on mounting panel (19), the cover is equipped with buffer spring (21) on first damping cylinder (20), and the bottom welded fastening of buffer spring (21) is on mounting panel (19), the top welded fastening of buffer spring (21) is on promoting piece (22), and promotes the top of piece (22) welded fastening at first damping cylinder (20), swing joint has connecting rod (23) on 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 screw connection on piece (22), and all the bolt-mounting have sensor (25) on rubber slab (24) and mounting panel (19).

5. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 1, which is characterized in that: 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).

6. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 4, wherein: 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.

7. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 4, wherein: the top end face of pushing away piece (22) on connecting rod (23) and the top end face that pushes away piece (22) on first damping section of thick bamboo (20) are located same horizontal plane, and adjacent both sides push away piece (22) and pass through rubber slab (24) constitution elasticity extending structure to the middle part of rubber slab (24) is fixed with sensor (25), is parallel distribution between rubber slab (24) and mounting panel (19) moreover.

8. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 5, wherein: 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.

9. The double-vertical-beam dual-drive five-axis machining center for integral marbles according to claim 3, wherein: 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).