CN110701142A - Five-axis cradle turntable hydraulic system - Google Patents
Five-axis cradle turntable hydraulic system Download PDFInfo
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- CN110701142A CN110701142A CN201910870742.2A CN201910870742A CN110701142A CN 110701142 A CN110701142 A CN 110701142A CN 201910870742 A CN201910870742 A CN 201910870742A CN 110701142 A CN110701142 A CN 110701142A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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Abstract
The invention discloses a five-shaft cradle turntable hydraulic system, wherein a B-shaft oil separator is arranged on the inner side of a B-shaft transmission shaft, a plurality of first oil paths are formed in the B-shaft oil separator, a plurality of second oil paths are formed in the B-shaft transmission shaft, and the front end of each second oil path is connected with a hydraulic pipe; the inner side of the C-axis transmission shaft is provided with a C-axis oil separator and a C-axis oil separator sleeve, a plurality of paths of third oil paths are formed in the C-axis oil separator, a plurality of paths of fourth oil paths are formed in the C-axis oil separator sleeve, a C-axis gland is fixed at the top end of the C-axis oil separator sleeve, a plurality of hydraulic function interfaces are formed in the C-axis gland, and each hydraulic function interface is communicated with one path of fourth oil path. The five-axis cradle turntable hydraulic system is compact in structure, comprehensive in function, capable of providing multiple hydraulic function interfaces with complete functions, strong in universality and applicability and high in modularization degree. A machine tool user can automatically change a hydraulic functional interface according to actual requirements so as to meet the access requirement of a complex clamp.
Description
Technical Field
The invention relates to the technical field of five-axis linkage machining, in particular to a five-axis cradle turntable hydraulic system.
Background
The hydraulic clamp is a clamp system which has the advantages of simple structure, high automation degree, fixed clamping point, reliable clamping force and quick workpiece clamping and releasing, can improve the production efficiency and the product quality, and is widely applied to the industries of automobile part processing, die processing and the like.
The five-axis cradle turntable plays an important role in processing curved surface parts, belongs to a high-end functional part in a numerical control machine tool, and is preferably cradle double-pendulum in structural layout. The five-axis cradle turntable generally comprises a B shaft assembly, a swing arm, a workbench assembly (namely a C shaft assembly) and a support tailstock, wherein two ends of the swing arm are respectively connected with the B shaft assembly and the support tailstock, and the workbench assembly is arranged on the swing arm. A common five-axis cradle turntable machine tool is generally matched with a hydraulic functional interface on a workbench component, and a machine tool user can conveniently access a hydraulic clamp system subsequently. The realization structures of all machine tool manufacturers for the hydraulic functional interfaces are different, but the realization structures are all drag chain structures, and the structure has the advantages of simple design and large size, has poor universality of the hydraulic functional interfaces and can not meet the access requirements of complex fixtures.
Disclosure of Invention
The invention aims to solve the technical problem of providing a five-axis cradle turntable hydraulic system which has compact structure, comprehensive functions, strong universality and applicability and high modularization degree aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a five-axis cradle turntable hydraulic system comprises a B-axis assembly, a swing arm, a C-axis assembly and a supporting tailstock, wherein the B-axis assembly comprises a hollow B-axis transmission shaft and a hollow B-axis shell which are horizontally arranged, the C-axis assembly comprises a hollow C-axis transmission shaft and a hollow C-axis shell which are vertically arranged, two ends of the swing arm are respectively connected with the B-axis transmission shaft and the supporting tailstock, the middle part of the swing arm is fixed on the C-axis shell, the top end of the C-axis transmission shaft is fixed with a workbench, a B-axis oil distributor is arranged on the inner side of the B-axis transmission shaft, the B-axis oil distributor is fixedly connected on the B-axis shell, the B-axis transmission shaft is sleeved on the outer side of the B-axis oil distributor, the outer circular surface of the B-axis oil distributor is in clearance fit with the inner circular surface of the B-axis transmission shaft, the B-shaft oil separator is internally provided with a plurality of first oil paths, the B-shaft transmission shaft is internally provided with a plurality of second oil paths which correspond to the plurality of first oil paths one by one, each first oil path is communicated with one second oil path, and the front end of each second oil path is connected with a hydraulic pipe; the inner side of the C-axis transmission shaft is provided with a C-axis oil separator and a C-axis oil separator sleeve, the C-axis oil separator is fixedly connected to the C-axis shell, the C-axis oil separator sleeve is sleeved on the outer side of the C-axis oil separator, the outer circular surface of the C-axis oil separator is in clearance fit with the inner circular surface of the C-axis oil separator sleeve, the C-axis transmission shaft is sleeved on the outer side of the C-axis oil separator sleeve, the C-axis oil separator sleeve is fixed on the C-axis transmission shaft, a plurality of paths of third oil paths which are in one-to-one correspondence with the plurality of hydraulic pipes are arranged in the C-axis oil separator, a plurality of paths of fourth oil paths which are in one-to-one correspondence with the plurality of paths of third oil paths are arranged in the C-axis oil separator sleeve, the lower end of each path of third oil path is connected with one hydraulic pipe, and the upper end of each path of third oil path is communicated with one path of fourth, the top end of the C-axis oil separator sleeve is fixedly provided with a C-axis gland, the C-axis gland is provided with a plurality of hydraulic function interfaces which are in one-to-one correspondence with the plurality of paths of fourth oil paths, and each hydraulic function interface is communicated with one path of fourth oil path.
The invention provides a general solution for a five-axis cradle turntable hydraulic system. This hydraulic system adopts rotary seal structure, and its all oil circuits all set up at B axle transmission shaft and C axle transmission inboard, and compact structure need not to arrange tedious tow chain structure, can guarantee five cradle revolving stage overall structure's compactedness, and this hydraulic system function is comprehensive simultaneously, can provide a plurality of hydraulic function interfaces that are multiple functional, and hydraulic function interface's commonality and suitability are strong, and the modularization degree is high, is favorable to reducing five cradle revolving stage's manufacturing cost. A machine tool user can automatically change a hydraulic functional interface according to actual requirements so as to meet the access requirement of a complex clamp.
Preferably, each first oil path is arranged along the axial direction of the B-axis oil separator, the plurality of first oil paths are arranged at intervals along the circumferential direction of the B-axis oil separator, each second oil path is arranged along the axial direction of the B-axis transmission shaft, and the plurality of second oil paths are arranged at intervals along the circumferential direction of the B-axis transmission shaft; each path of third oil path is arranged along the axial direction of the C-axis oil separator, the multiple paths of third oil paths are arranged at intervals along the circumferential direction of the C-axis oil separator, each path of fourth oil path is arranged along the axial direction of the C-axis oil separator sleeve, and the multiple paths of fourth oil paths are arranged at intervals along the circumferential direction of the C-axis oil separator sleeve. The design of the oil circuit is convenient for processing, ensures no mutual interference among the oil circuits, and simultaneously is convenient for saving and utilizing the space of the five-axis cradle turntable to the maximum extent.
Preferably, a plurality of first annular grooves are arranged between the B-axis transmission shaft and the B-axis oil separator, the plurality of first annular grooves are arranged at intervals along the axial direction of the B-axis oil separator, each first annular groove is arranged around the circumferential direction of the outer circular surface of the B-axis oil separator and the inner circular surface of the B-axis transmission shaft, each first oil path is connected with a first sub oil path which is radially arranged, each second oil path is connected with a second sub oil path which is radially arranged, and each first annular groove is respectively communicated with the first sub oil path and the second sub oil path; a plurality of second annular grooves are arranged between the C-axis oil separator sleeve and the C-axis oil separator, the second annular grooves are arranged at intervals along the axial direction of the C-axis oil separator, each second annular groove is arranged around the circumferential direction of the outer circular surface of the C-axis oil separator and the inner circular surface of the C-axis oil separator sleeve, each third oil path is connected with a third sub-oil path which is arranged in the radial direction, each fourth oil path is connected with a fourth sub-oil path which is arranged in the radial direction, and each second annular groove is respectively communicated with the third sub-oil path and the fourth sub-oil path. The shaft B transmission shaft is a rotating main body of the shaft B assembly, the shaft C transmission shaft and the shaft C oil distributor sleeve are rotating main bodies of the shaft C assembly, the shaft B oil distributor and the shaft C oil distributor are respectively one of fixed parts of the shaft B assembly and the shaft C assembly, and the design of the plurality of first annular grooves and the plurality of second annular grooves can ensure that each first oil way is always communicated with the second oil way and each third oil way is always communicated with the fourth oil way no matter how the shaft B transmission shaft and the shaft C transmission shaft rotate.
Preferably, a plurality of first rotary sealing elements are arranged between the B-axis transmission shaft and the B-axis oil separator, the plurality of first rotary sealing elements are arranged at intervals along the axial direction of the B-axis oil separator, and two sides of each first annular groove are respectively provided with one first rotary sealing element; a plurality of second rotary sealing pieces are arranged between the C-axis oil distributor sleeve and the C-axis oil distributor, the second rotary sealing pieces are arranged at intervals along the axial direction of the C-axis oil distributor, and two sides of each second annular groove are respectively provided with one second rotary sealing piece. The first rotary sealing elements and the second rotary sealing elements can play a good sealing role, and the sealing and isolating effects on the first annular grooves and the second annular grooves are guaranteed.
Preferably, a first connecting plate is fixed at the rear end of the B-axis oil separator, a plurality of first oil inlets corresponding to the plurality of paths of first oil paths one to one are formed in the first connecting plate, each first oil inlet is communicated with one path of first oil path, and a first joint is installed on each first oil inlet; the shaft B transmission shaft is provided with a shaft B gland, the shaft B gland is provided with a plurality of first through holes which are in one-to-one correspondence with the plurality of paths of second oil paths, each first through hole is communicated with the outlet of one path of second oil path, and each first through hole is provided with a second joint; a second connecting plate is fixed at the bottom end of the C-axis oil separator, a plurality of second oil inlets which are in one-to-one correspondence with the plurality of paths of third oil paths are formed in the second connecting plate, each second oil inlet is communicated with one path of third oil path, and a third joint is installed on each second oil inlet; two ends of each hydraulic pipe are respectively connected with one second joint and one third joint.
Preferably, a first dust cover is fixedly connected to the rear side of the B-axis shell, and the first connecting plate is fixed on the first dust cover; the bottom end of the C-axis shell is fixedly provided with a C-axis reading head flange, and the second connecting plate is fixed on the C-axis reading head flange.
Preferably, the B-axis oil separator is a hollow B-axis oil separator, a hollow routing shaft is arranged inside the B-axis oil separator, and the routing shaft is fixed on the B-axis transmission shaft. The wiring shaft is used for facilitating wiring inside the B shaft, so that the B shaft is more compact in structure.
Preferably, a deep groove ball bearing is arranged between the C-axis oil separator and the C-axis oil separator sleeve, the deep groove ball bearing is mounted at the upper end of the C-axis oil separator, a second dust cover is arranged above the C-axis oil separator and located below the C-axis gland, the outer circular surface of the second dust cover is in clearance fit with the inner circular surface of the C-axis oil separator sleeve, and an O-shaped sealing ring is arranged between the second dust cover and the C-axis oil separator sleeve. The deep groove ball bearing plays a supporting role for the C-axis oil distributor sleeve, and the C-axis oil distributor sleeve is ensured to stably and reliably rotate along with the C-axis transmission shaft.
Preferably, a second through hole formed in the radial direction is formed in the middle of the workbench, and the C-axis gland is installed in the second through hole in a sinking mode.
Preferably, the number of the first oil path, the second oil path, the third oil path and the fourth oil path is four to eight.
Compared with the prior art, the invention has the following advantages: the five-axis cradle turntable hydraulic system disclosed by the invention adopts a rotary sealing structure, all oil ways of the five-axis cradle turntable hydraulic system are arranged on the inner sides of the B-axis transmission shaft and the C-axis transmission shaft, the structure is compact, a complicated tow chain structure is not required to be arranged, the compactness of the whole structure of the five-axis cradle turntable can be ensured, meanwhile, the hydraulic system has comprehensive functions, a plurality of hydraulic function interfaces with complete functions can be provided, the universality and the applicability of the hydraulic function interfaces are strong, the modularization degree is high, and the manufacturing cost of the five-axis cradle turntable can be reduced. A machine tool user can automatically change a hydraulic functional interface according to actual requirements so as to meet the access requirement of a complex clamp.
Drawings
FIG. 1 is an external view of a five-axis cradle turntable for use in a hydraulic system according to an embodiment;
FIG. 2 is a schematic structural connection diagram of a B shaft assembly, a swing arm and a C shaft assembly of a five-shaft cradle turntable applied to a hydraulic system in the embodiment;
FIG. 3 is an enlarged view taken at I in FIG. 2;
FIG. 4 is an enlarged view taken at II in FIG. 2;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 6 is a left side view corresponding to fig. 1.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The five-axis cradle turntable hydraulic system of embodiment 1 is applied to the five-axis cradle turntable shown in fig. 1, and as shown in fig. 2 to 6, the five-axis cradle turntable includes a B-axis assembly 1, a swing arm 2, a C-axis assembly 3, and a support tailstock 4, the B-axis assembly 1 includes a horizontally disposed hollow B-axis transmission shaft 11 and a B-axis housing 12, the C-axis assembly 3 includes a vertically disposed hollow C-axis transmission shaft 31 and a C-axis housing 32, both ends of the swing arm 2 are respectively connected to the B-axis transmission shaft 11 and the support tailstock 4, a middle portion of the swing arm 2 is fixed to the C-axis housing 32, a top end of the C-axis transmission shaft 31 is fixed with a worktable 33 through screws, a B-axis oil distributor 13 is disposed inside the B-axis transmission shaft 11, the B-axis oil distributor 13 is fixedly connected to the B-axis housing 12, the B-axis transmission shaft 11 is sleeved outside the B-axis oil distributor 13, an outer circumferential surface, an eight-way first oil way 14 is arranged in the B-axis oil separator 13, eight-way second oil ways 15 which are in one-to-one correspondence with the eight-way first oil way 14 are arranged in the B-axis transmission shaft 11, each way of first oil way 14 is communicated with one way of second oil way 15, and the front end of each way of second oil way 15 is connected with a hydraulic pipe 5; the inner side of the C-axis transmission shaft 31 is provided with a C-axis oil separator 34 and a C-axis oil separator sleeve 35, the C-axis oil separator 34 is fixedly connected to the C-axis shell 32, the C-axis oil separator sleeve 35 is sleeved on the outer side of the C-axis oil separator 34, the outer circular surface of the C-axis oil separator 34 is in clearance fit with the inner circular surface of the C-axis oil separator sleeve 35, the C-axis transmission shaft 31 is sleeved on the outer side of the C-axis oil separator sleeve 35, the C-axis oil separator sleeve 35 is fixed on the C-axis transmission shaft 31 through screws, eight third oil paths 36 corresponding to the eight hydraulic pipes 5 one by one are arranged in the C-axis oil separator 34, eight fourth oil paths 37 corresponding to the eight third oil paths 36 one by one are arranged in the C-axis oil separator sleeve 35, the lower end of each third oil path 36 is connected with one hydraulic pipe 5, the upper end of each third oil path 36 is communicated with one fourth oil path 37, the top end of the C-axis oil, eight hydraulic function interfaces 39 corresponding to the eight fourth oil paths 37 one to one are formed in the C-axis gland 38, and each hydraulic function interface 39 is communicated with one fourth oil path 37.
In embodiment 1, each first oil path 14 is formed along the axial direction of the B-axis oil separator 13, eight first oil paths 14 are arranged at intervals along the circumferential direction of the B-axis oil separator 13, each second oil path 15 is formed along the axial direction of the B-axis transmission shaft 11, and eight second oil paths 15 are arranged at intervals along the circumferential direction of the B-axis transmission shaft 11; each third oil path 36 is opened along the axial direction of the C-axis oil separator 34, eight third oil paths 36 are arranged at intervals along the circumferential direction of the C-axis oil separator 34, each fourth oil path 37 is opened along the axial direction of the C-axis oil separator sleeve 35, and eight fourth oil paths 37 are arranged at intervals along the circumferential direction of the C-axis oil separator sleeve 35.
In embodiment 1, eight first annular grooves 6 are provided between the B-axis transmission shaft 11 and the B-axis oil separator 13, the eight first annular grooves 6 are arranged at intervals along the axial direction of the B-axis oil separator 13, each first annular groove 6 is arranged around the outer circumferential surface of the B-axis oil separator 13 and the circumferential direction of the inner circumferential surface of the B-axis transmission shaft 11, each first oil path 14 is connected with a first sub oil path 61 arranged in the radial direction, each second oil path 15 is connected with a second sub oil path 62 arranged in the radial direction, and each first annular groove 6 is respectively communicated with the first sub oil path 61 and the second sub oil path 62; eight second annular grooves 7 are arranged between the C-axis oil distributor sleeve 35 and the C-axis oil distributor 34, the eight second annular grooves 7 are arranged at intervals along the axial direction of the C-axis oil distributor 34, each second annular groove 7 is arranged around the circumferential direction of the outer circular surface of the C-axis oil distributor 34 and the inner circular surface of the C-axis oil distributor sleeve 35, each third oil path 36 is connected with a third sub-oil path 71 which is arranged in the radial direction, each fourth oil path 37 is connected with a fourth sub-oil path 72 which is arranged in the radial direction, and each second annular groove 7 is respectively communicated with the third sub-oil path 71 and the fourth sub-oil path 72; nine first rotary sealing elements 16 are arranged between the B-axis transmission shaft 11 and the B-axis oil separator 13, the nine first rotary sealing elements 16 are arranged at intervals along the axial direction of the B-axis oil separator 13, and two sides of each first annular groove 6 are respectively provided with one first rotary sealing element 16; nine second rotary sealing elements 30 are arranged between the C-axis oil distributor sleeve 35 and the C-axis oil distributor 34, the nine second rotary sealing elements 30 are arranged at intervals along the axial direction of the C-axis oil distributor 34, and two sides of each second annular groove 7 are respectively provided with one second rotary sealing element 30.
The five-shaft cradle turntable hydraulic system of embodiment 2 differs from embodiment 1 in that in embodiment 2, a first connecting plate 17 is fixed to a rear end of a B-shaft oil separator 13, a first dust cap 18 is fixedly connected to a rear side of a B-shaft housing 12, the first connecting plate 17 is fixed to the first dust cap 18, eight first oil inlets 19 corresponding to eight first oil passages 14 are formed in the first connecting plate 17, each first oil inlet 19 is communicated with one first oil passage 14, a first joint 10 is mounted on each first oil inlet 19, as shown in fig. 6, the first oil inlets are totally divided into a ~ h and eight first joints 10, a B-shaft drive shaft 11 is mounted with a B-shaft gland 8, eight first through holes 81 corresponding to eight second oil passages 15 are formed in the B-shaft gland 8, each first through hole 81 is communicated with an outlet of one second oil passage 15, a second joint 82 is mounted on each first through hole 81, a second joint 91 is mounted on the C-shaft oil separator 34, a bottom end of a C-shaft housing 32 is fixedly connected with a C-shaft housing 32, a second through a C-shaft screw 92, a third oil inlet 359 is connected with a third oil inlet screw 92, and a third oil inlet 93 'are connected with a third oil connector 93, and a third oil inlet 93' through a third oil passage 93 'and a third oil passage 93' respectively, as shown in fig. 6.
The five-axis cradle turntable hydraulic system of embodiment 3 differs from embodiment 2 in that in embodiment 3, the B-axis oil separator 13 is a hollow B-axis oil separator 13, a hollow routing shaft 51 is disposed inside the B-axis oil separator 13, and the routing shaft 51 is fixed to the B-axis transmission shaft 11; a deep groove ball bearing 52 is arranged between the C-axis oil separator 34 and the C-axis oil separator sleeve 35, the deep groove ball bearing 52 is installed at the upper end of the C-axis oil separator 34, a second dustproof cover 53 is arranged above the C-axis oil separator 34, the second dustproof cover 53 is positioned below the C-axis gland 38, the outer circular surface of the second dustproof cover 53 is in clearance fit with the inner circular surface of the C-axis oil separator sleeve 35, and an O-shaped sealing ring 54 is arranged between the second dustproof cover 53 and the C-axis oil separator sleeve 35; the middle part of the workbench 33 is provided with a second through hole 55 which is radially opened, and the C-axis gland 38 is arranged in the second through hole 55 in a sinking way.
The hydraulic working principle of the five-axis cradle turntable hydraulic system is as follows: eight first oil paths 14 respectively feed oil through an external oil pipe (not shown in the figure), only two paths of hydraulic oil (namely, two paths of paths corresponding to a first joint a and a first joint f in fig. 6) are shown in fig. 2, and taking one path of paths as an example, when the hydraulic oil works, after entering the first oil path 14, the hydraulic oil sequentially enters the second oil path 15 through the first sub oil path 61, the first annular groove 6 and the second sub oil path 62, and the first rotary sealing element 16 can ensure that the hydraulic oil does not leak in the rotating process of the B-axis transmission shaft 11; after entering the second oil path 15, the hydraulic oil enters the third oil path 36 through the hydraulic pipe 5, passes through the third sub oil path 71, the second annular groove 7, the fourth sub oil path 72 and the fourth oil path 37 in sequence, and finally enters the hydraulic functional interface 39, and the second rotary sealing element 30 can ensure that the hydraulic oil does not leak in the rotating process of the C-axis transmission shaft 31. After the hydraulic function interface 39 is connected to the oil pipe (not shown) of the hydraulic clamp, the hydraulic oil can enter the hydraulic clamp to realize the clamping and loosening functions.
In the process of processing a workpiece, the swing arm 2 can drive the whole C shaft assembly 3 to rotate around the B shaft, and when the swing arm 2 rotates, the hydraulic pipe 5 can rotate around the B shaft along with the swing arm 2, so that the hydraulic pipe 5 is relatively static relative to the connection part of the hydraulic pipe 5 and the second oil way 15 and the third oil way 36, and the problem of torsional damage of the hydraulic pipe 5 can be avoided.
The five-axis cradle turntable hydraulic system adopts the rotary sealing structure to replace a traditional and complicated towline structure, all oil ways of the five-axis cradle turntable hydraulic system are arranged on the inner sides of the B-axis transmission shaft 11 and the C-axis transmission shaft 31, the structure is compact, the functions are comprehensive, eight hydraulic function interfaces 39 with complete functions can be provided, the universality and the applicability of the hydraulic function interfaces 39 are strong, the modularization degree is high, and the manufacturing cost of the five-axis cradle turntable is favorably reduced. The machine tool user can change the hydraulic functional interface 39 according to the actual demand to meet the access requirement of the complex clamp.
Claims (10)
1. A five-axis cradle turntable hydraulic system comprises a B-axis assembly, a swing arm, a C-axis assembly and a supporting tailstock, wherein the B-axis assembly comprises a horizontally arranged hollow B-axis transmission shaft and a horizontally arranged hollow B-axis shell, the C-axis assembly comprises a vertically arranged hollow C-axis transmission shaft and a vertically arranged hollow C-axis shell, two ends of the swing arm are respectively connected with the B-axis transmission shaft and the supporting tailstock, the middle part of the swing arm is fixed on the C-axis shell, the top end of the C-axis transmission shaft is fixed with a workbench, and the five-axis cradle turntable hydraulic system is characterized in that a B-axis oil distributor is arranged on the inner side of the B-axis transmission shaft, the B-axis oil distributor is fixedly connected on the B-axis shell, the B-axis transmission shaft is sleeved on the outer side of the B-axis oil distributor, and the outer circular surface of the B-axis oil distributor is in clearance fit with the inner circular surface of the B, the B-shaft oil separator is internally provided with a plurality of first oil paths, the B-shaft transmission shaft is internally provided with a plurality of second oil paths which correspond to the plurality of first oil paths one by one, each first oil path is communicated with one second oil path, and the front end of each second oil path is connected with a hydraulic pipe; the inner side of the C-axis transmission shaft is provided with a C-axis oil separator and a C-axis oil separator sleeve, the C-axis oil separator is fixedly connected to the C-axis shell, the C-axis oil separator sleeve is sleeved on the outer side of the C-axis oil separator, the outer circular surface of the C-axis oil separator is in clearance fit with the inner circular surface of the C-axis oil separator sleeve, the C-axis transmission shaft is sleeved on the outer side of the C-axis oil separator sleeve, the C-axis oil separator sleeve is fixed on the C-axis transmission shaft, a plurality of paths of third oil paths which are in one-to-one correspondence with the plurality of hydraulic pipes are arranged in the C-axis oil separator, a plurality of paths of fourth oil paths which are in one-to-one correspondence with the plurality of paths of third oil paths are arranged in the C-axis oil separator sleeve, the lower end of each path of third oil path is connected with one hydraulic pipe, and the upper end of each path of third oil path is communicated with one path of fourth, the top end of the C-axis oil separator sleeve is fixedly provided with a C-axis gland, the C-axis gland is provided with a plurality of hydraulic function interfaces which are in one-to-one correspondence with the plurality of paths of fourth oil paths, and each hydraulic function interface is communicated with one path of fourth oil path.
2. The five-axis cradle turntable hydraulic system according to claim 1, wherein each of the first oil passages is formed along an axial direction of the B-axis oil separator, the plurality of first oil passages are arranged at intervals along a circumferential direction of the B-axis oil separator, each of the second oil passages is formed along an axial direction of the B-axis transmission shaft, and the plurality of second oil passages are arranged at intervals along a circumferential direction of the B-axis transmission shaft; each path of third oil path is arranged along the axial direction of the C-axis oil separator, the multiple paths of third oil paths are arranged at intervals along the circumferential direction of the C-axis oil separator, each path of fourth oil path is arranged along the axial direction of the C-axis oil separator sleeve, and the multiple paths of fourth oil paths are arranged at intervals along the circumferential direction of the C-axis oil separator sleeve.
3. The five-axis cradle turntable hydraulic system according to claim 2, wherein a plurality of first annular grooves are arranged between the B-axis transmission shaft and the B-axis oil separator, the plurality of first annular grooves are arranged at intervals along the axial direction of the B-axis oil separator, each first annular groove is arranged around the circumferential direction of the outer circular surface of the B-axis oil separator and the inner circular surface of the B-axis transmission shaft, each first oil path is connected with a first sub oil path which is radially arranged, each second oil path is connected with a second sub oil path which is radially arranged, and each first annular groove is respectively communicated with the first sub oil path and the second sub oil path; a plurality of second annular grooves are arranged between the C-axis oil separator sleeve and the C-axis oil separator, the second annular grooves are arranged at intervals along the axial direction of the C-axis oil separator, each second annular groove is arranged around the circumferential direction of the outer circular surface of the C-axis oil separator and the inner circular surface of the C-axis oil separator sleeve, each third oil path is connected with a third sub-oil path which is arranged in the radial direction, each fourth oil path is connected with a fourth sub-oil path which is arranged in the radial direction, and each second annular groove is respectively communicated with the third sub-oil path and the fourth sub-oil path.
4. The five-axis cradle turret hydraulic system according to claim 3, wherein a plurality of first rotary seals are disposed between the B-axis transmission shaft and the B-axis oil separator, the plurality of first rotary seals are spaced apart from each other in the axial direction of the B-axis oil separator, and one first rotary seal is disposed on each of two sides of each first annular groove; a plurality of second rotary sealing pieces are arranged between the C-axis oil distributor sleeve and the C-axis oil distributor, the second rotary sealing pieces are arranged at intervals along the axial direction of the C-axis oil distributor, and two sides of each second annular groove are respectively provided with one second rotary sealing piece.
5. The five-axis cradle turntable hydraulic system according to claim 1, wherein a first connecting plate is fixed to a rear end of the B-axis oil separator, the first connecting plate is provided with a plurality of first oil inlets in one-to-one correspondence with the plurality of first oil paths, each first oil inlet is communicated with one of the first oil paths, and a first joint is mounted on each first oil inlet; the shaft B transmission shaft is provided with a shaft B gland, the shaft B gland is provided with a plurality of first through holes which are in one-to-one correspondence with the plurality of paths of second oil paths, each first through hole is communicated with the outlet of one path of second oil path, and each first through hole is provided with a second joint; a second connecting plate is fixed at the bottom end of the C-axis oil separator, a plurality of second oil inlets which are in one-to-one correspondence with the plurality of paths of third oil paths are formed in the second connecting plate, each second oil inlet is communicated with one path of third oil path, and a third joint is installed on each second oil inlet; two ends of each hydraulic pipe are respectively connected with one second joint and one third joint.
6. The five-axis cradle turret hydraulic system according to claim 5, wherein a first dust cap is fixedly attached to the rear side of the B-axis housing, and the first connecting plate is fixed to the first dust cap; the bottom end of the C-axis shell is fixedly provided with a C-axis reading head flange, and the second connecting plate is fixed on the C-axis reading head flange.
7. The five-axis cradle turntable hydraulic system according to claim 1, wherein the B-axis oil separator is a hollow B-axis oil separator, a hollow routing shaft is arranged inside the B-axis oil separator, and the routing shaft is fixed on the B-axis transmission shaft.
8. The five-axis cradle turntable hydraulic system according to claim 1, wherein a deep groove ball bearing is arranged between the C-axis oil separator and the C-axis oil separator sleeve, the deep groove ball bearing is mounted at the upper end of the C-axis oil separator, a second dust cap is arranged above the C-axis oil separator, the second dust cap is positioned below the C-axis gland, the outer circular surface of the second dust cap is in clearance fit with the inner circular surface of the C-axis oil separator sleeve, and an O-ring is arranged between the second dust cap and the C-axis oil separator sleeve.
9. The five-axis cradle turntable hydraulic system according to claim 1, wherein a second through hole is radially formed in the middle of the worktable, and the C-axis gland is installed in the second through hole in a sinking manner.
10. The five-axis cradle turntable hydraulic system according to claim 1, wherein the number of the first oil path, the second oil path, the third oil path and the fourth oil path is four to eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870742.2A CN110701142A (en) | 2019-09-16 | 2019-09-16 | Five-axis cradle turntable hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870742.2A CN110701142A (en) | 2019-09-16 | 2019-09-16 | Five-axis cradle turntable hydraulic system |
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| CN110701142A true CN110701142A (en) | 2020-01-17 |
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| CN201910870742.2A Pending CN110701142A (en) | 2019-09-16 | 2019-09-16 | Five-axis cradle turntable hydraulic system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496780A (en) * | 2020-10-12 | 2021-03-16 | 重庆文理学院 | Direct-drive rotary table of five-axis numerical control machine tool |
| CN115431054A (en) * | 2022-08-31 | 2022-12-06 | 东莞市巨冈机械工业有限公司 | Machine tool workbench and double-workbench machine tool |
-
2019
- 2019-09-16 CN CN201910870742.2A patent/CN110701142A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496780A (en) * | 2020-10-12 | 2021-03-16 | 重庆文理学院 | Direct-drive rotary table of five-axis numerical control machine tool |
| CN115431054A (en) * | 2022-08-31 | 2022-12-06 | 东莞市巨冈机械工业有限公司 | Machine tool workbench and double-workbench machine tool |
| CN115431054B (en) * | 2022-08-31 | 2024-04-02 | 东莞市巨冈机械工业有限公司 | Machine tool workbench and double-workbench machine tool |
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