CN111546082A

CN111546082A - Horizontal five-axis flap machining center with vertically moving workbench

Info

Publication number: CN111546082A
Application number: CN202010479593.XA
Authority: CN
Inventors: 陈虎; 侯延星; 王阔; 范春宏; 张传思; 汤洪涛; 张国靖; 时冬梅; 王峰
Original assignee: Dalian Kede Numerical Control Co Ltd
Current assignee: Dalian Kede Numerical Control Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-18

Abstract

The invention provides a horizontal five-axis flap machining center with a vertically moving workbench, which comprises: the double-workbench exchanging device drives the workbench to turn, is butted with the sliding seat and moves the workbench onto the sliding seat; the sliding seat drives the workbench to do Y-axis vertical motion on the stand column; the machining assembly machines the workpiece on the workbench; the exchange sliding table is driven by the exchange mechanism to rotate for 360 degrees, and the driving mechanism drives the workbench to be processed and the processed workbench to alternately act on the processing area and the exchange sliding table, so that the processing, loading and unloading of workpieces on the workbench are simultaneously carried out, and the production efficiency is improved.

Description

Horizontal five-axis flap machining center with vertically moving workbench

Technical Field

The invention relates to the field of machine tools, in particular to a horizontal five-axis flap machining center with a vertically moving workbench.

Background

Aiming at the development of the aviation industry in China, a large number of plate cavity parts need to be machined, in order to improve machining efficiency and precision, a machining center in the prior art mostly adopts a mode of vertically clamping a workpiece on a workbench to machine the workpiece, and workpiece loading and unloading are carried out when the workpiece stops machining and the workbench is horizontal, so that the simultaneous machining and loading and unloading of the workpiece cannot be realized.

Disclosure of Invention

The invention provides a horizontal five-axis flap machining center with a vertically moving workbench, which aims to overcome the technical problem.

The invention provides a horizontal five-axis flap machining center with a vertically moving workbench, which comprises: a rotary double-workbench exchange device, a vertical column, a sliding seat and a processing assembly,

the double-workbench exchange device drives the workbench to turn, and the rotary double-workbench exchange device is in butt joint with the sliding seat and moves the workbench to the sliding seat; the sliding seat drives the workbench to do Y-axis vertical motion on the stand column; the machining assembly machines the workpiece on the workbench.

Further, the processing assembly includes: the lathe bed, the sliding saddle, the ram and the main spindle head assembly;

the spindle head assembly is obliquely inserted into one end, close to the sliding seat, of the ram; the sliding saddle drives the ram to do X-axis horizontal linear motion on the bed body; the ram drives the main shaft head assembly to do Z-axis horizontal linear motion perpendicular to the X axis on the sliding saddle.

Further, the rotary type double-workbench exchanging device comprises: the device comprises an exchange mechanism for driving a workbench to rotate, a driving mechanism for driving the exchange mechanism to rotate, and a supporting mechanism for supporting the exchange mechanism;

the exchange mechanism includes: an exchange slide table and a linear feeding mechanism; the exchange sliding table is provided with a first working table fixing surface and a second working table fixing surface for fixing the working tables; the first workbench fixing surface and the second workbench fixing surface are fixed with a workbench; one end of the exchange sliding table is connected with the driving mechanism, the driving mechanism is arranged on the supporting mechanism, and the other end of the exchange sliding table is rotationally connected with the supporting mechanism; a third workbench fixing surface for fixing the workbench is arranged on the sliding seat; the first workbench fixing surface, the second workbench fixing surface and the third workbench fixing surface are provided with linear feeding mechanisms which enable the workbench, the exchange sliding table and the sliding seat to generate relative motion;

the drive mechanism includes: the device comprises a driving gear, a driven gear, a driving motor and a position detection device, wherein the driving gear and the driven gear are meshed with each other; the driving gear is fixedly connected with the supporting mechanism; the driven gears are rotationally connected with the supporting mechanism and fixedly connected with one end of the exchange sliding table; the position detection device is arranged on the driven gear and the supporting mechanism.

Furthermore, the other end of the exchange sliding table is rotationally connected with a centering shaft, the centering shaft is fixedly connected with the supporting mechanism,

the support mechanism includes: the base, a driving bracket used for fixing the driving mechanism and a driven bracket used for fixing the centering shaft;

the driving bracket and the driven bracket are respectively fixed at opposite ends of the base.

Furthermore, an anti-overturning roller is arranged along one side of the first workbench fixing surface, the second workbench fixing surface and the third workbench fixing surface, and a guide wheel is arranged along the other side;

the overturn preventing rollers are clamped with the grooves on the workbench, and the rotation axes of the overturn preventing rollers are vertical to the central axes of the grooves; a guide roller on the workbench is clamped with the guide wheel, and the rotation axis of the guide roller 1-is vertical to the central axis of the guide wheel; the movement direction of the workbench is perpendicular to the rotation axis of the overturn-preventing roller.

Further, the position detection device is an angle encoder, and the angle encoder is arranged on the driven gear.

Furthermore, the position detection device comprises a vertical positioning switch for detecting the vertical state of the workbench fixing surface of the exchange sliding table and a horizontal positioning switch for detecting the horizontal state of the workbench fixing surface of the exchange sliding table; the vertical positioning switch and the horizontal positioning switch are both arranged on the driven bracket.

Further, still include: the device comprises a horizontal positioning pin, a first workbench positioning pin and two horizontal positioning sleeves arranged on the exchange sliding table;

the horizontal positioning pin is arranged on the driving support, and when the exchange sliding table is in a horizontal position, the horizontal positioning pin extends out of the driving support and is inserted into the horizontal positioning sleeve; the first workbench locating pin is arranged on the exchange sliding table.

Further, the linear feed mechanism includes: a cylinder and a transmission;

the first pivot of cylinder drive and the butt joint of the second pivot in processing district, the motor drive in processing district transmission is rotatory, transmission drives the workstation motion makes the workstation with exchange slip table with relative motion is to the slide.

Further, still include: the workbench is prevented from falling off a limiting block, a vacuum chuck and an anti-collision block of the exchange sliding table when rotating;

the limiting block is fixed on the fixed surface of the workbench and is positioned at the same side of the guide wheel; the vacuum sucker and the anti-collision block are fixedly connected with one end, close to the driven gear, of the exchange sliding table.

According to the invention, the exchange mechanism is adopted to drive the exchange sliding table to rotate for 360 degrees, and the driving mechanism drives the first workbench fixing surface and the second workbench fixing surface to respectively fix the workbench to be processed and the processed workbench to alternately act on the processing area and the exchange sliding table, so that the processing, loading and unloading of the workpiece on the workbench are simultaneously carried out, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a horizontal five-axis flap machining center with a vertically moving worktable according to an embodiment of the invention;

FIG. 2 is a front view of a rotary dual stage exchange unit, column and slide according to an embodiment of the present invention;

FIG. 3 is an oblique side view of a spindle head assembly and ram according to an embodiment of the present invention;

FIG. 4 is a front view of a spindle head assembly and ram according to an embodiment of the present invention;

FIG. 5 is a schematic overall structure diagram of a rotary double-workbench exchanging apparatus according to an embodiment of the present invention;

fig. 6 is a schematic view of an exchange slide table and a workbench according to an embodiment of the present invention in a vertical state;

FIG. 7 is a side view of a rotary double table exchange apparatus according to an embodiment of the present invention on the side of a driven support;

FIG. 8 is a side view of a rotary dual stage exchange apparatus according to an embodiment of the present invention on the drive carriage side;

FIG. 9 is a front view of a rotary dual stage exchange apparatus according to an embodiment of the present invention;

FIG. 10 is a top view of a rotary dual stage exchange apparatus according to an embodiment of the present invention;

FIG. 11 is an enlarged view of A in FIG. 7;

FIG. 12 is an enlarged view of B in FIG. 6;

FIG. 13 is an enlarged view of C in FIG. 7;

fig. 14 is an enlarged view of D in fig. 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

As shown in fig. 1 and 2, the overall structure of a horizontal five-axis flap machining center with a vertically moving worktable according to an embodiment of the present invention is schematically illustrated; the method comprises the following steps: the device comprises a double-workbench exchange device 1, a stand column 2, a sliding seat 7 and a machining assembly, wherein the double-workbench exchange device 1 drives a workbench 1-4 to turn over, the double-workbench exchange device 1 is in butt joint with the sliding seat 7, and the workbench 1-4 is moved onto the sliding seat 7; the slide carriage 7 drives the working tables 1-4 to do Y-axis vertical motion on the upright post 2; the machining assembly machines the workpiece on the working table 1-4.

Further, the processing assembly includes: a bed 11, a saddle 12, a ram 13 and a spindle head assembly 14; the spindle head assembly 14 includes: a rotating shaft 14-1, a swinging shaft 14-2 and a main shaft 14-3; one end of a rotating shaft 14-1 is fixedly connected with one end of the ram 13 close to the sliding seat 7, the rotating shaft 14-1 drives the swinging shaft 14-2 to do B-axis motion, and the swinging shaft 14-2 drives the main shaft 14-3 to do A-axis motion; as shown in fig. 3 and 4, an included angle between the rotation axis of the rotating shaft 14-1 and the Z-axis movement direction of the ram 13 is 60 °, and the main shaft 14-3 can complete the rotation movements of ± 45 ° on the a-axis and ± 45 ° on the B-axis. Compared with the spindle which is arranged at the end part of the ram in a suspension mode, the spindle is obliquely arranged at the end part of the ram at an angle of 60 degrees, when the A shaft is in a horizontal machining posture, the distance between the cutting tool point and the rotating center of the B shaft is shorter, the torque exerted by the rotating motion under the same cutting force is smaller, and the additional linear motion caused by the compensation of the distance between the cutting tool point and the rotating center of the machine tool is smaller, so that the cutting efficiency can be improved, and the dynamic characteristic of the machine tool can be improved.

The saddle 12 drives the ram 13 to do X-axis horizontal linear motion on the bed body 11; the ram 13 drives the spindle head assembly 14 to make a Z-axis horizontal linear motion perpendicular to the X-axis on the saddle 12.

Further, the double table exchange device 1 includes: the device comprises an exchange mechanism for driving a workbench 1-4 to rotate, a driving mechanism for driving the exchange mechanism to rotate, and a supporting mechanism for supporting the exchange mechanism;

the exchange mechanism includes: an exchange sliding table 1-5 and a linear feeding mechanism 1-8; the exchange sliding table 1-5 is provided with a first working table fixing surface and a second working table fixing surface for fixing the working tables 1-4; the first workbench fixing surface and the second workbench fixing surface are fixedly provided with workbenches 1-4; one end of the exchange sliding table 1-5 is connected with the driving mechanism, the driving mechanism is arranged on the supporting mechanism, and the other end of the exchange sliding table 1-5 is rotatably connected with the supporting mechanism; a third workbench fixing surface for fixing the workbench 1-4 is arranged on the sliding seat 7; the first workbench fixing surface, the second workbench fixing surface and the third workbench fixing surface are provided with linear feeding mechanisms 1-8 which enable the workbench 1-4, the exchange sliding table 1-5 and the sliding seat 7 to generate relative motion;

the drive mechanism includes: the device comprises driving gears 1-6 and driven gears 1-12 which are meshed with each other, a driving motor for driving the driving gears 1-6 to rotate, and a position detection device for detecting the position state of the exchange sliding table 1-5; the driving gears 1-6 are fixedly connected with the supporting mechanism; the driven gears 1-12 are rotatably connected with the supporting mechanism, and the driven gears 1-12 are fixedly connected with one end of the exchange sliding table 1-5; the position detection device is arranged on the supporting mechanism of the driven gears 1-12.

Further, the other end of the exchange sliding table 1-5 is rotatably connected with a centering shaft 1-13, the centering shaft 1-13 is fixedly connected with the supporting mechanism, and the supporting mechanism comprises: the device comprises a base 1-1, a driving support 1-2 for fixing a driving mechanism and a driven support 1-3 for fixing a centering shaft 1-13; the driving bracket 1-2 and the driven bracket 1-3 are respectively fixed to opposite ends of the base 1-1.

Specifically, the double-workbench exchange device 1 is located on the left side of the upright post 2, the slide carriage 7 is connected to the upright post 2 through a Y-axis lead screw 4 and a Y-axis guide rail 3, the Y-axis motor 5 is fixed to the top of the upright post 2, the output end of the Y-axis motor 5 is connected with the input end of a Y-axis reducer 15, the output end of the Y-axis reducer 15 is connected with one end of the Y-axis lead screw 4, the slide carriage 7 is enabled to vertically move on the Y-axis guide rail 3 through the Y-axis lead screw 4, the Y-axis guide rail 3 is fixed to the side face of the upright post 2, a Y-axis safety brake 16 is connected to the output end of the Y-axis reducer 15; and a Y-axis grating ruler 17 is fixed on the side surface of the Y-axis guide rail 3, and the movement distance of the sliding seat 7 is detected.

The saddle 12 is connected to the lathe bed 11 through an X-axis guide rail 20 and an X-axis lead screw 21, the output end of an X-axis motor 22 is connected with the input end of an X-axis reducer 26, the output end of the X-axis reducer 26 is connected with one end of the X-axis lead screw 21, the X-axis lead screw 21 enables the saddle 12 to do X-axis horizontal linear motion on the X-axis guide rail 20, the X-axis guide rail 20 is fixed on the upper surface of the lathe bed 11, and the output end of the X-axis reducer 26 is connected with an X-axis; the X-axis speed reducer 26 and the X-axis safety brake 27 play a role in protection; an X-axis grating ruler 28 is fixed on the side surface of the X-axis guide rail 20 to detect the movement distance of the saddle 12.

The ram 13 is connected to the saddle 12 through a Z-axis guide rail 23 and a Z-axis screw 24, the output end of a Z-axis motor 25 is connected with the input end of a Z-axis reducer 29, the output end of the Z-axis reducer 29 is connected with one end of a Z-axis screw 24, the Z-axis screw 24 enables the ram 13 to do X-axis vertical Z-axis horizontal linear motion on the Z-axis guide rail 23, the Z-axis guide rail 23 is fixed on the upper surface of the saddle 12, and the output end of the Z-axis reducer 29 is connected with a Z-axis safety brake 24; the Z-axis speed reducer 29 and the Z-axis safety brake 24 play a role in protection; and a Z-axis grating ruler 31 is fixed on the side surface of the Z-axis guide rail 23 to detect the movement distance of the ram 13.

The driving support 1-2 and the driven support 1-3 are oppositely arranged and respectively fixed at two ends of the base 1-1, a driving gear 1-6 and a driven gear 1-12 which are mutually meshed are fixed on the driving support 1-2, as shown in fig. 7, in the embodiment, two driving gears 1-6 are arranged, two driving motors which respectively drive the two driving gears 1-6 are arranged in the driving support 1-2, and when one driving motor fails, the other driving motor can continuously drive the other driving gear 1-6 to work; in addition, the arrangement of the two driving gears 1-6 can eliminate the clearance between the driving gears 1-6 and the driven gears 1-12; a driven bracket 1-3 is provided with a centering shaft 1-13, an exchange sliding table 1-5 is rectangular, two opposite end parts of the exchange sliding table are respectively fixedly connected with a moving gear 1-12 and rotatably connected with the centering shaft 1-13, when a driving motor drives a driving gear 1-6 to rotate, the driven gear 1-12 drives the exchange sliding table 1-5 to rotate, two rotating surfaces of the exchange sliding table 1-5 are respectively a first workbench fixing surface and a second workbench fixing surface and are used for fixing a workbench 1-4 which is processed and to be processed, and when the exchange sliding table 1-5 rotates, the workbench 1-4 fixed on the exchange sliding table 1-5 is driven to synchronously rotate; a right-angle notch is formed in one side of the driven support 1-3, when the exchange sliding table 1-5 is vertical, a workbench 1-4 to be machined on the exchange sliding table 1-5 is driven by the linear feeding mechanism 1-8 to move from the right-angle notch side to the machining area and move onto the sliding base 7 through the linear feeding mechanism 1-8 on the third workbench fixing surface of the sliding base 7 in the machining area, and a machined workbench 1-4 on the sliding base 7 moves onto the exchange sliding table 1-5 from the right-angle notch side through the driving of the linear feeding mechanism 8 on the third workbench fixing surface; through the action of the processed and to-be-processed working tables 1-4, the processing of the to-be-processed working tables 1-4 in the processing area is realized, and meanwhile, the exchange sliding table 1-5 carries out loading and unloading work on the processed working tables 1-4, so that the working efficiency is improved.

Furthermore, anti-overturning rollers 1-18 are arranged along one side of the first workbench fixing surface, the second workbench fixing surface and the third workbench fixing surface, and guide wheels 1-7 are arranged along the other side;

the plurality of anti-overturning rollers 1-18 are clamped with the grooves 1-4-1 on the workbench 1-4, and the rotation axes of the anti-overturning rollers 1-18 are vertical to the central axes of the grooves 1-4-1; guide rollers 1-17 on the working table 1-4 are clamped with the guide wheels 1-7, and the rotation axes of the guide rollers 1-17 are vertical to the central axes of the guide wheels 1-7; the movement direction of the working platform 1-4 is vertical to the rotation axis of the overturn-preventing roller 1-18.

Specifically, in order to prevent one end, away from the ground, of the workbench 1-4 fixed on the exchange slipway 1-5 from overturning from the exchange slipway 1-5 when the exchange slipway 1-5 is in a vertical state, as shown in fig. 12, rows of overturning-prevention rollers 1-18 are arranged on the same side of a first workbench fixing surface and a second workbench fixing surface, a plurality of overturning-prevention rollers 1-18 are clamped in grooves 1-4-1 penetrating the workbench 1-4, and rotating shafts of the overturning-prevention rollers 1-18 are perpendicular to central axes of the grooves 1-4-1; in addition, in order to generate relatively stable relative motion between the working tables 1 to 4 and the exchange sliding tables 1 to 5, guide wheels 1 to 7 are fixed on the opposite sides of overturn-preventing rollers 1 to 18 on the first working table fixing surface and the second working table fixing surface, the guide wheels 1 to 7 are circular guide rails, as shown in fig. 11, guide rollers 1 to 17 on the working tables 1 to 4 are clamped with the guide wheels 1 to 7, and rotating shafts of the guide rollers 1 to 17 are perpendicular to central axes of the guide wheels 1 to 7; the workbench 1-4 moves along the extension line of the groove 1-4-1 and the central axis of the guide wheel 1-7.

Further, the position detection device is an angle encoder, and the angle encoder is arranged on the driven gears 1-12.

Specifically, when the angle encoder detects that the rotation angles of the driven gears 1 to 12 are 0 degrees, 180 degrees and 360 degrees, namely the exchange sliding table 1 to 5 is in a horizontal state, the driving motor stops acting, and the workbench is placed on the exchange sliding table 1 to 5; when the angle encoder detects that the rotating angles of the driven gears 1 to 12 are 90 degrees and 270 degrees, namely the exchange sliding table 1 to 5 is in a vertical state, the driving motor stops acting, and the linear feeding mechanism 1 to 8 moves the workbench to a machining area from the exchange sliding table 1 to 5 or moves the workbench 1 to 4 to the exchange sliding table 1 to 5 from the machining area.

Further, the position detection device comprises vertical positioning switches 1-22 for detecting the vertical state of the workbench fixing surfaces of the exchange slipways 1-5 and horizontal positioning switches 1-20 for detecting the horizontal state of the workbench fixing surfaces of the exchange slipways 1-5; the vertical positioning switches 1-22 and the horizontal positioning switches 1-20 are arranged on the driven bracket 1-3.

Specifically, as shown in fig. 9 and 13, in this embodiment, as another embodiment for detecting the horizontal state and the vertical state of the exchange slide table, a vertical positioning switch 1-22 for detecting the vertical state of the table fixing surface of the exchange slide table 1-5 and a horizontal positioning switch 1-20 for detecting the horizontal state of the table fixing surface of the exchange slide table 1-5 are arranged on the driven bracket 1-3; when the horizontal state of the fixed surface of the workbench is detected, the driving motor stops acting, and the workbench is placed on the exchange sliding table 1-5; when the vertical state of the fixed surface of the workbench is detected, the driving motor stops acting, and the linear feeding mechanism 1-8 moves the workbench from the exchange sliding table 1-5 to the processing area, or moves the workbench 1-4 from the processing area to the exchange sliding table 1-5.

Further, still include: horizontal positioning pins 1-11, first workbench positioning pins 1-10, two horizontal positioning sleeves 1-14 arranged on the exchange sliding table 1-5 and second workbench positioning pins 7-1 arranged on the fixing surface of the third workbench;

the horizontal positioning pins 1-11 are arranged on the driving support 1-2, and when the exchange sliding table 1-5 is in a horizontal position, namely when the angle encoder detects that the rotation angles of the driven gears 1-12 are 0 degree, 180 degrees and 360 degrees, the positioning pins 1-10 of the first working table and the horizontal positioning pins 1-11 extend out, and other angles retract. Or when the horizontal positioning switch 1-20 detects that the exchange sliding table 1-5 is in a horizontal state, the first workbench positioning pin 1-10 and the horizontal positioning pin 1-11 extend out; when the vertical positioning switches 1 to 22 detect that the exchange sliding table 1 to 5 is in a vertical state, the first workbench positioning pins 1 to 10 and the horizontal positioning pins 1 to 11 retract; when the workbench is positioned on the third workbench fixing surface, the second workbench positioning pin 7-1 extends out and is sleeved into a hole arranged on the workbench 1-4 to be clamped (the hole is not shown in the figure) so as to realize fixation; fixation is realized; when the workbench is positioned on the third workbench fixing surface, the second workbench positioning pin 7-1 retracts.

The horizontal positioning pin 1-11 extends out of the driving bracket 1-2 and is inserted into the horizontal positioning sleeve 1-14; and the first workbench positioning pins 1-10 for fixing the workbench 1-4 are arranged on the workbench fixing surface of the exchange sliding table 1-5.

Specifically, in order to ensure that the exchange sliding table 1-5 can reach an absolute level when rotating to a horizontal state, and has a limiting effect on the exchange sliding table 1-5, and prevent the exchange sliding table 1-5 from over-rotating, as shown in fig. 6, a horizontal positioning pin 1-11 is arranged on the driving support 1-2, and the horizontal positioning pin 1-11 is a metal rod and is parallel to a horizontal plane; as shown in fig. 8, two horizontal positioning sleeves 1-14 are arranged on the exchange slipway 1-5; when the exchange sliding table 1-5 is in a horizontal position, the horizontal positioning pin 1-11 extends out of the driving support 1-2 and is inserted into the horizontal positioning sleeve 1-14;

as shown in fig. 5, the first table positioning pins 1-10 for fixing the tables 1-4 are disposed on the table fixing surfaces of the exchange tables 1-5, and when the tables 1-4 are placed on the exchange tables 1-5, the first table positioning pins 1-10 vertically extend from the exchange tables 1-5 and are engaged with the holes disposed on the tables 1-4 (the holes are not shown in the drawings).

Further, the linear feed mechanism 1 to 8 includes: a cylinder 1-8-1 and a transmission device; the air cylinder 1-8-1 drives the first rotating shaft to be in butt joint with the second rotating shaft in the machining area, the motor in the machining area drives the transmission device to rotate, and the transmission device drives the workbench 1-4 to move, so that the workbench 1-4 and the exchange sliding table 1-5 move relatively.

Specifically, as shown in fig. 5 and 14, the transmission device is a cylindrical cam 1-8-2, a row of feed rollers 1-4-2 is arranged on one surface of the workbench 1-4, which is in contact with the exchange slide table 1-5, a motor in the processing area drives the cylindrical cam 1-8-2 to rotate, and the cylindrical cam 1-8-2 is engaged with the feed rollers 1-4-2 and enables the workbench 1-4 and the exchange slide table 1-5 to move relatively; the transmission device can also be a screw rod nut, a motor in the processing area drives the screw rod to rotate, so that a nut seat fixed at the bottom of the workbench moves linearly, and the workbench 1-4 and the exchange sliding table 1-5 move relatively; through simple structural combination, the workbench 1-4 is conveyed into a processing area from the exchange sliding table 1-5, and the exchange sliding table is pulled back from the processing area.

Further, as shown in fig. 5 in conjunction with fig. 10, the method further includes: the working table 1-4 is prevented from falling off the limiting block 1-15 of the exchange sliding table 1-5 when rotating; the limiting blocks 1-15 are fixed on the fixed surface of the workbench and are positioned at the same side as the guide wheels 1-7.

Further, still include: a vacuum chuck 19 and crash blocks 1-21; the vacuum chucks 1-19 and the anti-collision blocks 1-21 are fixedly connected with one ends of the exchange slipways 1-5 close to the driven gears 1-12.

Specifically, when the processed workbench 1-4 moves from the processing area to the exchange slide table, in order to prevent the processed workbench 1-4 from impacting the driven gear due to inertia, a vacuum chuck 1-19 and an anti-collision block 1-21 are fixed at one end of the exchange slide table 1-5 close to the driven gear 1-12, the processed workbench 1-4 passes through the limit of the anti-collision block 1-21 and the vacuum chuck 1-19 adsorbs the anti-collision block, and the motion state of the processed workbench 1-4 is further stabilized and stopped while the limit is realized.

The working process is as follows:

s1: the first workbench fixing surface is upward horizontally, the angle encoder detects that the rotation angle of the driven gear is 0 degree or the horizontal positioning switch detects that the exchange sliding table is in a horizontal state, and a first workbench positioning pin on the first workbench fixing surface extends out; the horizontal positioning pin extends out of the horizontal positioning sleeve and is inserted into the horizontal positioning sleeve;

s2: placing a first workbench on which a workpiece to be machined is placed on a fixed surface of the first workbench;

s3: the driving motor drives the driving gear to rotate, the driving gear is meshed with the driven gear, and the driven gear drives the exchange sliding table to rotate along the same direction;

when the angle encoder detects that the rotation angle of the driven gear is 90 degrees or the vertical positioning switch detects that the exchange sliding table is in a vertical state, the driving motor stops acting, and the first workbench positioning pin and the horizontal positioning pin retract;

s4: the cylinder drives the first rotating shaft to extend out and is in butt joint with the second rotating shaft of the processing area, the motor of the processing area rotates forwards and drives the cylindrical cam to rotate, and the cylindrical cam is meshed with the feeding roller and enables the first workbench to be processed to move to the processing area; a slide seat which vertically moves along the upright post is arranged on the upright post in the processing area, a linear feeding mechanism on the slide seat moves a first workbench to be processed to the slide seat, and the main shaft processes a workpiece on the first workbench to be processed;

s5: the cylinder drives the first rotating shaft to retract, the first rotating shaft is separated from the second rotating shaft of the machining area, the driving motor acts, and step S3 is synchronized, so that the fixed surface of the second workbench of the exchange sliding table faces upwards; when the angle encoder detects that the rotation angle of the driven gear is 180 degrees or the horizontal positioning switch detects that the exchange sliding table is in a horizontal state, the driving motor stops acting, and a first working table positioning pin on the fixed surface of the second working table extends out; the horizontal positioning pin extends out of the horizontal positioning sleeve and is inserted into the horizontal positioning sleeve; placing a second workbench to be processed on a second workbench fixing surface;

s6: the driving motor drives the driving gear to drive the driven gear to rotate, and the driven gear drives the exchange sliding table to rotate in a vertical state; enabling the first workbench fixing surface to be located on the side of the right-angle notch of the driven support, enabling a motor in a machining area to rotate forward to enable the first workbench fixing surface to move to the machining area, then rotating backward, driving the cylindrical cam to rotate, enabling the cylindrical cam to be meshed with the feeding roller and enabling the machined first workbench to move to the exchange sliding table;

s7: the driving motor drives the driving gear to drive the driven gear to rotate, and the driven gear drives the exchange sliding table to rotate in a vertical state; enabling the second workbench fixing surface to be located on the right-angle notch side of the driven bracket 3, enabling a motor of the machining area to rotate positively and driving the cylindrical cam to rotate, and enabling the cylindrical cam to be meshed with the feeding roller and the second workbench to be machined to move to the machining area;

s8: the driving motor drives the driving gear to drive the driven gear to rotate, and the driven gear drives the exchange sliding table to rotate in a horizontal state; enabling the fixed surface of the first workbench to face upwards, and unloading the machined first workbench; then, step S1 is executed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a workstation vertical motion's horizontal five-axis turns over board machining center which characterized in that includes: the device comprises a rotary double-workbench exchanging device (1), a stand column (2), a sliding seat (7) and a machining assembly, wherein the rotary double-workbench exchanging device (1) drives a workbench (1-4) to turn over, the double-workbench exchanging device (1) is in butt joint with the sliding seat (7), and the workbench (1-4) is moved onto the sliding seat (7); the sliding seat (7) drives the working tables (1-4) to do Y-axis vertical motion on the upright post (2); the machining assembly machines the workpiece on the workbench (1-4).

2. The machining center of claim 1, wherein the machining assembly comprises: the device comprises a lathe bed (11), a saddle (12), a ram (13) and a main spindle head assembly (14);

the spindle head assembly (14) includes: a rotating shaft (14-1), a swinging shaft (14-2) and a main shaft (14-3); one end of a rotating shaft (14-1) is obliquely inserted and connected with one end, close to the sliding seat (7), of the ram (13), the rotating shaft (14-1) drives the swinging shaft (14-2) to move along the B axis, and the swinging shaft (14-2) drives the main shaft (14-3) to move along the A axis;

the sliding saddle (12) drives the ram (13) to do X-axis horizontal linear motion on the bed body (11); the ram (13) drives the main shaft head assembly (14) to do Z-axis horizontal linear motion vertical to the X axis on the saddle (12).

3. Machining center according to claim 2, characterized in that the rotary double-table exchange device (1) comprises: the device comprises an exchange mechanism for driving a workbench (1-4) to rotate, a driving mechanism for driving the exchange mechanism to rotate, and a supporting mechanism for supporting the exchange mechanism;

the exchange mechanism includes: an exchange sliding table (1-5) and a linear feeding mechanism (1-8); the exchange sliding table (1-5) is provided with a first working table fixing surface and a second working table fixing surface for fixing the working tables (1-4); the first workbench fixing surface and the second workbench fixing surface are fixedly provided with workbenches (1-4); one end of the exchange sliding table (1-5) is connected with the driving mechanism, the driving mechanism is arranged on the supporting mechanism, and the other end of the exchange sliding table (1-5) is rotatably connected with the supporting mechanism; a third workbench fixing surface for fixing the workbench (1-4) is arranged on the sliding seat (7); the first workbench fixing surface, the second workbench fixing surface and the third workbench fixing surface are provided with linear feeding mechanisms (1-8) which enable the workbench (1-4), the exchange sliding table (1-5) and the sliding seat (7) to generate relative motion;

the drive mechanism includes: the device comprises driving gears (1-6) and driven gears (1-12) which are meshed with each other, a driving motor for driving the driving gears (1-6) to rotate, and a position detection device for detecting the position state of the exchange sliding table (1-5); the driving gear (1-6) is fixedly connected with the supporting mechanism; the driven gears (1-12) are rotatably connected with the supporting mechanism, and the driven gears (1-12) are fixedly connected with one ends of the exchange sliding tables (1-5); the position detection device is arranged on the supporting mechanism of the driven gear (1-12).

4. The machining center according to claim 3, characterized in that the other end of the exchange slide table (1-5) is rotatably connected with a centering shaft (1-13), the centering shaft (1-13) is fixedly connected with the supporting mechanism,

the support mechanism includes: the device comprises a base (1-1), a driving support (1-2) for fixing the driving mechanism, and a driven support (1-3) for fixing the centering shaft (1-13);

the driving support (1-2) and the driven support (1-3) are respectively fixed at the opposite ends of the base (1-1).

5. The machining center according to claim 4, wherein overturn-preventing rollers (1-18) are provided along one side of the first table fixing surface, the second table fixing surface and the third table fixing surface, and guide wheels (1-7) are provided along the other side;

a plurality of overturn-preventing rollers (1-18) are clamped with grooves (1-4-1) on the workbench (1-4), and the rotation axes of the overturn-preventing rollers (1-18) are vertical to the central axis of the grooves (1-4-1); guide rollers (1-17) on the working table (1-4) are clamped with the guide wheels (1-7), and the rotation axes of the guide rollers (1-17) are vertical to the central axes of the guide wheels (1-7); the movement direction of the working table (1-4) is perpendicular to the rotation axis of the overturn-preventing roller (1-18).

6. Machining center according to claim 3, characterized in that the position detection means are angle encoders provided on the driven gears (1-12).

7. The machining center according to claim 4, wherein the position detecting device is a vertical positioning switch (1-22) for detecting a vertical state of a table fixing surface of the exchange slide table (1-5) and a horizontal positioning switch (1-20) for detecting a horizontal state of the table fixing surface of the exchange slide table (1-5); the vertical positioning switches (1-22) and the horizontal positioning switches (1-20) are arranged on the driven bracket (1-3).

8. The machining center according to claim 6 or 7, further comprising: horizontal positioning pins (1-11), first workbench positioning pins (1-10), two horizontal positioning sleeves (1-14) arranged on the exchange sliding table (1-5) and second workbench positioning pins (7-1) arranged on the fixing surface of the third workbench;

the horizontal positioning pins (1-11) are arranged on the driving support (1-2), and when the exchange sliding table (1-5) is in a horizontal position, the horizontal positioning pins (1-11) extend out of the driving support (1-2) and are inserted into the horizontal positioning sleeves (1-14); the first workbench positioning pin (1-10) is arranged on the exchange sliding table (1-5).

9. Machining center according to claim 3, characterized in that the linear feed mechanism (1-8) comprises: a cylinder (1-8-1) and a transmission device;

the air cylinder (1-8-1) drives the first rotating shaft to be in butt joint with the second rotating shaft in the machining area, the motor in the machining area drives the transmission device to rotate, and the transmission device drives the workbench (1-4) to move, so that the workbench (1-4) and the exchange sliding table (1-5) and the sliding seat (7) move relatively.

10. The machining center according to claim 8, further comprising: the limiting blocks (1-15), the vacuum suction cups (1-19) and the anti-collision blocks (1-21) prevent the workbench (1-4) from falling off the exchange sliding table (1-5) when rotating;

the limiting blocks (1-15) are fixed on the fixed surface of the workbench and are positioned at the same side as the guide wheels (1-7); the vacuum suckers (1-19) and the anti-collision blocks (1-21) are fixedly connected with one ends, close to the driven gears (1-12), of the exchange sliding tables (1-5).