CN210388291U

CN210388291U - Five-axis machining center and double-shaft cradle type rotary table thereof

Info

Publication number: CN210388291U
Application number: CN201920671726.6U
Authority: CN
Inventors: 吴乐平; 熊志庆; 丁通兵; 巢勤奋
Original assignee: NANJING SUNRISE NUMERICAL CONTROL TECHNOLOGY CO LTD
Current assignee: NANJING SUNRISE NUMERICAL CONTROL TECHNOLOGY CO LTD
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-04-24
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a five-axis machining center and biax cradle formula revolving stage thereof, its advantage lies in, increases the direction of processing of work piece to satisfy the processing demand, relate to the digit control machine tool field, its technical essential: including setting up mounting plate, speed reducer backing plate and the bearing frame cushion of setting on mounting plate on the second mobile station, connect through the connecting block between backing plate and the cushion, the both ends of connecting block rotate respectively and connect on backing plate and cushion, be equipped with the driving piece of drive connecting block at certain angle internal rotation on the backing plate, be equipped with the fixed workstation of treating the processing work piece on the connecting block.

Description

Five-axis machining center and double-shaft cradle type rotary table thereof

Technical Field

The utility model relates to a digit control machine tool field especially relates to a five-axis machining center and biax cradle formula revolving stage thereof.

Background

In recent years, with the development of economy, the change of national strategy, the requirement of national defense construction and the pressure of industrial upgrading and industrial structure adjustment in the domestic manufacturing industry, the rapid development of high-end numerical control machining, particularly five-axis linkage machining technology, and corresponding technical talents are increasingly tense. China puts an urgent need on advanced numerical control machine tools and multi-axis machining technical talents.

Fig. 2 is a schematic structural diagram of a numerically-controlled machine tool in the prior art, and the structure includes a Z-axis 1 moving in a vertical direction, a second moving stage 3 moving in an X-axis direction through screw transmission, and a first moving stage 2 disposed on the second moving stage 3 and also moving in a Y-axis direction through screw transmission, where the second moving stage 3 is used to fix a workpiece to be processed.

However, the machine tool can only realize three-axis linkage, and the machining direction of the workpiece needs to be increased in order to meet the machining requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a five-axis machining center biax cradle formula revolving stage, its advantage lies in, increases the direction of processing of work piece to satisfy the processing demand.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a five-axis machining center biax cradle formula revolving stage, is including setting up mounting plate on the second mobile station, setting up speed reducer backing plate and the bearing frame cushion on mounting plate, connect through the connecting block between backing plate and the cushion, the both ends of connecting block rotate respectively and connect on backing plate and cushion, be equipped with the driving piece of drive connecting block at certain angle internal rotation on the backing plate, be equipped with the fixed workstation of treating the processing work piece on the connecting block.

Through adopting above-mentioned technical scheme, will treat that the work piece of processing is placed on the workstation, driving piece drive connecting block rotates this moment, has increased the direction of processing of work piece, satisfies the demand of processing.

The utility model discloses further set up to: the driving piece is including setting up speed reducer seat, the bearing frame on backing plate and cushion respectively, coaxial first hole and the second of placing of having seted up respectively on speed reducer seat, the bearing frame is placed the hole at first one side rotation of placing the hole towards the second and is connected with the carousel, the downthehole rotation is placed at the second to the bearing frame and is connected with the pivot, the pivot extends the bearing frame and is connected with the fixed axle towards one side of speed reducer seat and in the one side of extending, the one end of connecting block is fixed on the carousel, and other end fixed connection is on the fixed axle, speed reducer seat is equipped with first motor in the first downthehole of placing, the axis of rotation and the coaxial setting of pivot of first motor, be connected with first harmonic speed reducer in the axis of rotation of first motor, the axis of rotation of first harmonic speed reducer is.

The utility model discloses further set up to: the workstation rotates with the connecting block to be connected, the connecting block has been seted up the third in the one side that deviates from the workstation and has been placed the hole, the connecting block is placed downthehole drive workstation pivoted second motor in the third, be connected with the second harmonic reduction gear in the axis of rotation of second motor, the axis of rotation of second harmonic reduction gear is fixed with the workstation.

The utility model discloses further set up to: the speed reducer base is provided with a first placing hole, a second placing hole, a fixing shaft and a connecting block, wherein the side of the speed reducer base, far away from the turntable, is provided with the first placing hole, the side of the second placing hole, far away from the fixing shaft, is provided with the connecting block, far away from the workbench, is provided with the third placing hole, and the third placing hole is provided with a sealing plate for sealing the first placing hole, the second placing hole or the third placing hole through.

The utility model discloses further set up to: the cable that supplies second motor and second harmonic speed reducer ware to wear out the first exit hole of connecting block is equipped with in the connecting block, set up on the carousel and supply to wear out from the first exit hole cable penetrate the first downthehole second exit hole of placing.

The utility model discloses further set up to: the pivot is passed through the bearing and is rotated and connect in the bearing frame, set up in the bearing frame and supply the bearing to put into and place the hole of putting into of the coaxial setting in hole with the second, the bearing inner race is contradicted and is putting into the hole bottom, the bearing frame is passing through fastening bolt fixedly connected with bearing cap in the first one side of placing the hole of orientation, the bearing cap is contradicted the bearing inner race at the hole bottom of putting into the hole, set up in the pivot and supply the groove of putting into that the bearing inner race was put into, the pivot is equipped with coaxial spliced pole in the one side of keeping away from the bearing cap, the spliced pole wears to be equipped with locking pad outward, threaded connection has the lock nut who extrudees locking pad at the pivot lateral wall and make locking.

The utility model discloses further set up to: the speed reducer base is provided with a first skeleton sealing ring which is abutted against the rotary disc, a second skeleton sealing ring is arranged between the bearing cover and the rotary shaft, and a third skeleton sealing ring is arranged at the connecting position of the workbench and the connecting block.

The utility model discloses further set up to: the reducer base and the bearing seat are respectively fixed on the base plate and the cushion block through connecting bolts, and adjusting gaskets are respectively arranged between the reducer base and the cushion block and between the reducer base and the cushion block.

Another object of the utility model is to provide a five-axis machining center, including above-mentioned five-axis machining center biax cradle formula revolving stage.

To sum up, the utility model discloses following beneficial effect has: a workpiece to be machined is placed on the workbench, and the driving piece drives the connecting block to rotate, so that the machining direction of the workpiece is increased, and the machining requirement is met; the workbench is rotatably connected with the connecting block, and the second motor drives the workbench to rotate, so that the workpieces on the workbench rotate, and the processing direction of the workpieces is further increased.

Drawings

FIG. 1 is a schematic structural view of the present embodiment 1;

fig. 2 is a schematic diagram of a conventional structure.

In the figure: 1. a Z axis; 2. a first mobile station; 3. a second mobile station; 31. mounting a bottom plate; 311. a base plate; 312. cushion blocks; 313. connecting blocks; 314. a work table; 32. a drive member; 321. a speed reducer base; 322. a bearing seat; 323. a first placing hole; 324. a second placing hole; 325. a turntable; 326. a rotating shaft; 327. a fixed shaft; 328. a first motor; 329. a first harmonic reducer; 33. a third placing hole; 34. a second motor; 341. a second harmonic reducer; 35. locking the bolt; 351. a closing plate; 36. a first exit aperture; 361. a second exit aperture; 37. a bearing; 371. a drop hole; 372. fastening a bolt; 373. a bearing cap; 374. putting the glass into a groove; 375. connecting columns; 376. a locking pad; 377. locking the nut; 38. a first skeleton seal ring; 381. a second skeleton sealing ring; 382. a third skeleton seal ring; 39. a connecting bolt; 391. and adjusting the gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

a five-axis machining center double-shaft cradle type rotary table comprises a mounting bottom plate 31 arranged on a second movable table 3, a speed reducer base plate 311 and a bearing seat cushion block 312 arranged on the mounting bottom plate 31, wherein the base plate 311 and the cushion block 312 are connected through a connecting block 313, two ends of the connecting block 313 are respectively rotatably connected to the base plate 311 and the cushion block 312, a driving piece 32 for driving the connecting block 313 to rotate within a certain angle is arranged on the base plate 311, and a workbench 314 for fixing a workpiece to be machined is arranged on the connecting block 313. The workpiece on the worktable 314 can be fixed on the worktable 314 through a tool, which is not described herein.

As shown in fig. 1, a workpiece to be processed is placed on the worktable 314, and the driving member 32 drives the connecting block 313 to rotate, so that the processing direction of the workpiece is increased, and the processing requirement is met. At this time, except for the X, Y, Z axle of the numerical control machine tool, the fourth axle of the numerical control machine tool is a swing axle, namely, the swing axle is the rotation of the connecting block 313, the swing axle can adjust the inclination angle of the workpiece to be processed, the swing axle can only swing (such as plus or minus 90 degrees) in a certain angle and can not rotate 360 degrees, and the workpiece can be inclined conveniently for processing.

As shown in fig. 1, the driving member 32 includes a reduction gear base 321 and a bearing base 322 respectively disposed on the backing plate 311 and the cushion block 312, the reduction gear base 321 and the bearing base 322 may be in a rectangular parallelepiped shape, and then vertical plates connected to the backing plate 311 and the cushion block 312 are disposed at lower ends of the rectangular parallelepiped, a first placing hole 323 and a second placing hole 324 are coaxially disposed on the reduction gear base 321 and the bearing base 322, respectively, the first placing hole 323 and the second placing hole 324 are disposed on the rectangular parallelepiped, a rotating plate 325 is rotatably connected to a side of the first placing hole 323 facing the second placing hole 324, the rotating plate 325 closes a side of the first placing hole 323, a rotating shaft 326 is rotatably connected to the second placing hole 324, the rotating shaft 326 extends out of a side of the bearing base 322 facing the reduction gear base 321 and is connected to a fixed shaft 327 on the extended side, one end of the connecting block 313 is fixed to the rotating plate 325, and, the reduction gear base 321 is provided with a first motor 328 in the first placement hole 323, a rotation shaft of the first motor 328 is provided coaxially with the rotation shaft 326, a first harmonic reducer 329 is connected to the rotation shaft of the first motor 328, and the rotation shaft of the first harmonic reducer 329 is fixed to the turntable 325.

As shown in fig. 1, at this time, when the first motor 328 rotates, the first harmonic reducer 329 drives the turntable 325 to rotate, the turntable 325 drives the connecting block 313 on the turntable 325 to rotate, and the first harmonic reducer 329 has high bearing capacity and high transmission precision, so that the first motor 328 drives the turntable 325 to rotate back and forth.

As shown in fig. 1, the workbench 314 is rotatably connected to the connection block 313, a third placement hole 33 is formed in one side of the connection block 313 away from the workbench 314, a second motor 34 for driving the workbench 314 to rotate is arranged in the third placement hole 33 of the connection block 313, a second harmonic reducer 341 is connected to a rotation shaft of the second motor 34, and the rotation shaft of the second harmonic reducer 341 is fixed to the workbench 314.

The second motor 34 drives the workbench 314 to rotate through the second harmonic reducer 341, and the numerical control machine tool further has a rotating shaft 326 besides an X axis, a Y axis, a Z axis and a swing axis, namely, the rotation of the workbench 314, and at the moment, the rotating shaft 326 can adjust the surface to be processed of the workpiece itself, so that the processing direction of the workpiece is increased, and the processing requirement is met.

As shown in fig. 1, the reduction gear base 321 is provided with a closing plate 351 for closing the first placing hole 323, the second placing hole 324, or the third placing hole 33 by a locking bolt 35 on the side of the first placing hole 323 away from the turntable 325, the side of the bearing base 322 away from the fixed shaft 327 on the second placing hole 324, and the side of the connecting block 313 away from the table 314 on the third placing hole 33. The closing member reduces the entry of foreign substances into the first, second, and third placement holes 323, 324, and 33, facilitating the rotation of the first motor 328 or the rotating shaft 326 or the second motor 34.

As shown in fig. 1, a first through hole 36 through which the cable of the second motor 34 and the second harmonic reducer 341 passes through the connection block 313 is provided in the connection block 313, and a second through hole 361 through which the cable passing through the first through hole 36 passes into the first placement hole 323 is provided in the rotation plate 325. The cables of the second motor 34 and the second harmonic reducer 341, which are positioned in the connection block 313 at this time, pass through the first through hole 36 and the second through hole 361, so that the appearance of the cables is not good and the cables are not damaged due to the exposure of the cables.

As shown in fig. 1, the rotating shaft 326 is rotatably connected in the bearing seat 322 through the bearing 37, an insertion hole 371 which is provided for the bearing 37 to be inserted and is coaxially arranged with the second insertion hole 324 is formed in the bearing seat 322, an outer ring of the bearing 37 abuts against the bottom of the insertion hole 371, the bearing seat 322 is fixedly connected with a bearing cover 373 through a fastening bolt 372 on one side facing the first insertion hole 323, the bearing cover 373 abuts against an outer ring of the bearing 37 against the bottom of the insertion hole 371, an insertion groove 374 which is provided for the inner ring of the bearing 37 to be inserted is formed in the rotating shaft 326, the rotating shaft 326 is provided with a coaxial connecting column 375 on one side far away from the bearing cover 373, a locking pad 376 penetrates through the connecting column 375, and the connecting column 375 is in threaded connection with a locking nut 377 which extrudes the locking pad 376 on the side.

As shown in fig. 1, the anti-loose pad 376 is moved towards the inner ring of the bearing 37 by the lock nut 377 until the anti-loose pad 376 abuts against the inner ring of the bearing 37, at this time, the anti-loose pad 376 limits the movement of the inner ring of the bearing 37 along the axial direction of the rotating shaft 326, and the bearing 37 presses the outer ring of the bearing 37 against the bottom of the hole 371 of the insertion hole through the bearing cover 373, so as to facilitate the rotation of the rotating shaft 326.

As shown in fig. 1, a first skeleton sealing ring 38 abutting against the turntable 325 is disposed on the speed reducer base 321, a second skeleton sealing ring 381 is disposed between the bearing cover 373 and the rotating shaft 326, and a third skeleton sealing ring 382 is disposed at a connecting position between the workbench 314 and the connecting block 313. The first skeleton sealing ring 38, the second skeleton sealing ring 381 and the third skeleton sealing ring 382 reduce the entering of flying chips into the speed reducer base 321, the bearing seat 322 and the connecting block 313 during the processing of workpieces.

As shown in fig. 1, the reducer base 321 and the bearing seat 322 are respectively fixed on the backing plate 311 and the pad 312 by the connecting bolt 39, the adjusting washers 391 are respectively arranged between the reducer base 321 and the bearing seat 322 and the backing plate 311 and the pad 312, the reducer base 321 and the bearing seat 322 are respectively fixed on the backing plate 311 and the pad 312 by the connecting bolt 39, the replacement is convenient, and in addition, the adjusting washers 391 are arranged to facilitate the adjustment of the heights of the reducer base 321 and the bearing seat 322 and the adjustment of the coaxiality of the first placing hole 323 and the second placing hole 324.

Example 2:

a five-axis machining center comprising embodiment 1 above.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a five machining center biax cradle formula revolving stage which characterized in that: including setting up mounting plate (31), speed reducer backing plate (311) and the bearing frame cushion (312) of setting on mounting plate (31) on second mobile station (3), connect through connecting block (313) between backing plate (311) and cushion (312), the both ends of connecting block (313) are rotated respectively and are connected on backing plate (311) and cushion (312), be equipped with driving piece (32) of drive connecting block (313) at certain angle internal rotation on backing plate (311), be equipped with fixed workstation (314) of treating the processing work piece on connecting block (313).

2. The five-axis machining center double-axis cradle-type turntable as claimed in claim 1, wherein: the driving part (32) comprises a speed reducer base (321) and a bearing seat (322) which are respectively arranged on a base plate (311) and a cushion block (312), a first placing hole (323) and a second placing hole (324) are respectively and coaxially formed in the speed reducer base (321) and the bearing seat (322), a rotating disc (325) is rotatably connected to one side, facing the second placing hole (324), of the first placing hole (323) of the speed reducer base (321), a rotating shaft (326) is rotatably connected to the second placing hole (324) of the bearing seat (322), the rotating shaft (326) extends out of one side, facing the speed reducer base (321), of the bearing seat (322) and is connected with a fixed shaft (327) at the extending side, one end of a connecting block (313) is fixed on the rotating disc (325), the other end of the connecting block is fixedly connected to the fixed shaft (327), and a first motor (328) is arranged in the first placing hole (323), the rotating shaft of the first motor (328) and the rotating shaft (326) are coaxially arranged, a first harmonic reducer (329) is connected to the rotating shaft of the first motor (328), and the rotating shaft of the first harmonic reducer (329) is fixed with the rotating disc (325).

3. The five-axis machining center double-axis cradle-type turntable as claimed in claim 1 or 2, wherein: the working table (314) is rotatably connected with the connecting block (313), a third placing hole (33) is formed in one side, away from the working table (314), of the connecting block (313), a second motor (34) for driving the working table (314) to rotate is arranged in the third placing hole (33) of the connecting block (313), a second harmonic speed reducer (341) is connected to a rotating shaft of the second motor (34), and the rotating shaft of the second harmonic speed reducer (341) is fixed with the working table (314).

4. The five-axis machining center double-axis cradle type turntable as claimed in claim 2, wherein: the side of the speed reducer base (321) far away from the rotary disc (325) through the first placing hole (323), the side of the bearing seat (322) far away from the fixed shaft (327) through the second placing hole (324), and the side of the connecting block (313) far away from the workbench (314) through the third placing hole (33) are respectively provided with a sealing plate (351) for sealing the first placing hole (323), the second placing hole (324) or the third placing hole (33) through a locking bolt (35).

5. The five-axis machining center double-axis cradle type turntable as claimed in claim 2, wherein: a first penetrating hole (36) for allowing cables of the second motor (34) and the second harmonic reducer (341) to penetrate out of the connecting block (313) is formed in the connecting block (313), and a second penetrating hole (361) for allowing the cable penetrating out of the first penetrating hole (36) to penetrate into the first placing hole (323) is formed in the rotary disc (325).

6. The five-axis machining center double-axis cradle type turntable as claimed in claim 2, wherein: the utility model discloses a bearing frame, including pivot (326), bearing (37), hole (371) are placed in hole (324) coaxial setting through bearing (37) rotation connection in bearing frame (322) to the pivot, set up in bearing frame (322) and supply bearing (37) to put into and place hole (371) coaxial setting with the second, hole (371) hole bottom is being put into in conflict in bearing (37) outer lane, fastening bolt (372) fixedly connected with bearing cap (373) is passed through in one side towards first hole (323) of placing in bearing frame (322), bearing cap (373) contradicts bearing (37) outer lane at the hole bottom of putting into hole (371), set up on pivot (326) and supply the putting into groove (374) that bearing (37) inner circle put into, pivot (326) are equipped with coaxial spliced pole (375) in the one side of keeping away from bearing cap (373), spliced pole (375) wear to be equipped with locking pad (376) outward, threaded connection has on spliced pole (375) extrudees locking pad (376) and pushes at pivot (326) lateral wall and make locking pad (376) And a lock nut (377) abutted by the inner ring.

7. The five-axis machining center double-axis cradle type turntable as claimed in claim 6, wherein: be equipped with first skeleton sealing washer (38) of contradicting with carousel (325) on speed reducer seat (321), be equipped with second skeleton sealing washer (381) between bearing cap (373) and pivot (326), workstation (314) and connecting block (313) hookup location are equipped with third skeleton sealing washer (382).

8. The five-axis machining center double-axis cradle type turntable as claimed in claim 2, wherein: the speed reducer base (321) and the bearing seat (322) are respectively fixed on the base plate (311) and the cushion block (312) through connecting bolts (39), and adjusting gaskets (391) are respectively arranged between the speed reducer base (321) and the bearing seat (322) and the base plate (311) and the cushion block (312).

9. A five-axis machining center is characterized in that: a five-axis machining center two-axis cradle turret comprising the five-axis machining center two-axis cradle of any of the above claims 1-8.