CN100443253C - Double-screw drive type double pendulum angle milling head - Google Patents
Double-screw drive type double pendulum angle milling head Download PDFInfo
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- CN100443253C CN100443253C CNB200710037295XA CN200710037295A CN100443253C CN 100443253 C CN100443253 C CN 100443253C CN B200710037295X A CNB200710037295X A CN B200710037295XA CN 200710037295 A CN200710037295 A CN 200710037295A CN 100443253 C CN100443253 C CN 100443253C
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- controllable motor
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Abstract
The invention relates to a single bolt driving dual oscillating milling head. The No.1 controllable generator fixed with No.1 cylinder gear through No.1 coupler, No.2 cylinder gear fixed with the cover of the milling head cover, whose top cover and a pair of milling sleeve side cover fixed with the milling head sleeve, No.2 controllable generator installed on the bracket that fastened inside the milling head sleeve. The first pair of linkage and the first moving screw or a linking bracket, the second linkage with a the first pair of linking bracket or the second pair of linking bracket, the third linkage with the second moving nut or the third linking bracket, the fourth linkage with the third linking bracket or the fourth linking bracket to form into rotating assistance respectively. It solves the issue of big size, low rigidity and poor bearing ability of the dual oscillating milling head.
Description
Technical field
The present invention relates to the milling head in a kind of machine tool technology field, specifically is a kind of double-screw drive type double pendulum angle milling head, is applicable to heavy multi-axis numerical control high-precision high-speed lathe.
Background technology
Double-pendulum milling head is the core component of multiaxis control, 5-shaft linkage numerical control lathe, main big heavy type numerical control of service and conventional milling boring class lathe, main frame is by being equipped with this type of numerical control milling head, the control diaxon rotates realizes that five-axle linkage comes the processed complex three-dimension curved surface, enlarge the range of work and the function of use of main frame, enhance productivity greatly and help guaranteeing machining accuracy.Because of its superiority, the ratio that is equipped with when not only the user orders main frame is improving, and the quantity that many customer requirements that has used main frame are equipped with again also obviously increases.The double pendulum numerical control milling head belongs to the high-tech matching component, the characteristics that the content that possesses skills is high.For a long time, China does not possess the ability that manufactures and designs this base part, caused the high-precision high-speed multi-axis linkage numerical control lathe manufacture level of China lower, its consequence is a lot of complex parts and even equipment dependence on import, and some country also imposes embargo to some key equipment, had a strong impact on industrial expansion, the one cover double-pendulum milling head of import now is up to millions of.
At present, domestic in design with make and also to be in the starting stage aspect the double-pendulum milling head be used for high-precision high-speed multi-axis linkage numerical control lathe, also there is not relevant document record, only there is several family main frame factory carrying out the trial-production of exploration for trial-production 5-shaft linkage numerical control lathe, but owing to lack fully checking aspect key technology, aspects such as its reliability, quality, precision all are difficult to compare favourably with external product.In addition, the double-pendulum milling head that is used for the high accuracy 5-axis machining center needs to realize functions such as main shaft gyration, swing simultaneously, double-pendulum milling head mainly adopts the contour auxiliary driving of roller bearing, gear and worm and gear at present, though can reach certain motion and required precision, but because the limitation of higher pair transmission agency, have shortcomings such as volume is big, rigidity is low, bearing capacity is low, cause existing unavoidably shortcomings such as bearing capacity is low, volume is big, rigidity is low.
Find through literature search prior art, application number be 00211008.3 Chinese utility model patent disclose belong to the machine tool technology field a kind of screw rod Digit Control Machine Tool with turning round milling head, comprise revolving bed, the revolution casing, disc milling cutter, motor, belt, T type bolt, belt pulleys etc. wherein turn round box body device in revolving bed, be slidingly matched with the arc track of revolving bed, the revolution casing is done in revolving bed ± 90 ° sliding transfer, makes disc milling cutter have ± 90 ° machining state, is applicable to milling bull complicated abnormal shape screw rod.This patent milling head can only realize the sliding transfer of 90 ° of scopes of one degree of freedom, can not realize the swing of big pivot angle two-freedom, have above-mentioned defective equally.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of double-screw drive type double pendulum angle milling head is provided, make it satisfy the job requirement of double-pendulum milling head by the novel mechanism configuration that adopts the low auxiliary driving of enclosed, this configuration has the characteristic of top load, high rigidity, big corner, corner around two axles can reach respectively ± and 180 ° and greater than ± 90 °, meet or exceed international like product standard, can solve problems such as present double-pendulum milling head is big owing to the volume that high auxiliary driving exists, rigidity is low, bearing capacity is low.
The present invention is achieved by the following technical solutions, double-screw drive type double pendulum angle milling head of the present invention comprises: three controllable motors, three shaft couplings, a pair of roller gear, milling heads overlap upper cover plate, the milling head cover, two supports, a pair of milling head cover side cover plate, two drive screws, two travelling nuts, the four pairs of connecting rods, the four pairs of side links and milling head electricity main shaft etc.
Wherein, first controllable motor is fixedlyed connected with first roller gear by first shaft coupling, and second roller gear is fixedlyed connected with milling head cover upper cover plate, and milling head cover upper cover plate is all fixedlyed connected with the milling head cover with a pair of milling head cover side cover plate, is used for installing.Second controllable motor and the 3rd controllable motor are installed on respectively on first and second supports, and first and second supports all are fixed in the milling head cover.Four pairs of connecting rods, four pairs of side links are symmetrically arranged in the both sides of milling head electricity main shaft respectively.First drive screw is fixedlyed connected with the axle of second controllable motor by second shaft coupling, and second drive screw is fixedlyed connected with the axle of the 3rd controllable motor by the 3rd shaft coupling.One end of first pair of connecting rod constitutes revolute pair with first travelling nut respectively, and the other end constitutes revolute pair with first pair of side link respectively.One end of second pair of connecting rod constitutes revolute pair with first pair of side link respectively, and the other end constitutes revolute pair with second pair of side link respectively.One end of the 3rd pair of connecting rod constitutes revolute pair with second travelling nut respectively, and the other end constitutes revolute pair with the 3rd pair of side link respectively.One end of the 4th pair of connecting rod constitutes revolute pair with the 3rd pair of side link respectively, and the other end constitutes revolute pair with the 4th pair of side link respectively.Four pairs of side links all are connected in milling head by revolute pair and put, and wherein all fixedly connected with milling head electricity main shaft with the 4th pair of side link for second pair.
In the use, the controllable motor that links to each other with first roller gear drives the milling head cover by gear drive and all members of being mounted thereon comprise the axis swing of milling head electricity main shaft integral body along the second roller gear axle, realize the swing of the one degree of freedom of milling head, its pivot angle can reach ± and 180 °.Second controllable motor drives first travelling nut by first drive screw and moves back and forth, the 3rd controllable motor drives second travelling nut by second drive screw and moves back and forth, first travelling nut is by first pair of connecting rod, first pair of side link and second pair of connecting rod drive second pair of side link motion, second travelling nut is by the 3rd pair of connecting rod, the 3rd pair of side link and the 4th pair of connecting rod drive the 4th pair of side link motion, thereby drive milling head electricity main shaft along the swing of second pair of relative milling head cover of the fixed hinge axis with the 4th pair of side link, realize the swing of another free degree of milling head, its pivot angle can be greater than ± 90 °.
The present invention has substantive distinguishing features and marked improvement, by worm drive and enclosed low counter gear, utilizes three controllable motors as motion and power input, drives the swing that milling head is realized two-freedom.Mechanism configuration proposed by the invention has the characteristic of top load, high rigidity, big corner.Adopt worm drive, can make simple and compact for structure, the mechanical gain height, transmission evenly, accurately, steadily.Owing to adopted two motor twin-screw type of drive, further improved the rigidity and the bearing capacity of mechanism.Corner around two axles can reach respectively ± and 180 ° and greater than ± 90 °, meet or exceed international like product standard, can solve present double-pendulum milling head because problem such as the volume that high auxiliary driving exists is big, rigidity is low, bearing capacity is low.Applicable to heavy five-shaft numerical control high-precision high-speed lathe, to satisfy the processing request of parts such as large-scale generating equipment, nuclear-plant, forging equipment, but and modularized design simple in structure, easy to manufacture, guarantee the motion of mechanism scope simultaneously, accuracy guarantee can and be demarcated by size design and be guaranteed.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure, 1 is first controllable motor, and 2 is first shaft coupling, 3 is first roller gear, and 4 is second roller gear, and 5 are milling head cover upper cover plate, 6 is the milling head cover, and 7 is second controllable motor, and 8 is second shaft coupling, 9 is first support, 10 is first travelling nut, and 11 is first drive screw, and 12 is first pair of connecting rod, 13 is a pair of milling head cover side cover plate, 14 is first pair of side link, and 15 is second pair of connecting rod, and 16 is second pair of side link, 17 is milling head electricity main shaft, 18 is the 4th pair of side link, and 19 is the 4th pair of connecting rod, and 20 is the 3rd pair of side link, 21 is the 3rd pair of connecting rod, 22 is second travelling nut, and 23 is second drive screw, and 24 is second support, 25 is the 3rd shaft coupling, and 26 is the 3rd controllable motor.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: first controllable motor, 1, the first shaft coupling 2, first roller gear, 3, the second roller gears 4, milling head cover upper cover plate 5, milling head cover 6, the second controllable motors 7, the second shaft couplings 8, first support, 9, the first travelling nuts, 10, the first drive screws 11, first pair of connecting rod 12,13, the first pairs of side links 14 of a pair of milling head cover side cover plate, 15, the second pairs of side links 16 of second pair of connecting rod, milling head electricity main shaft 17, the 4th pair of side link 18,20, the three pairs of connecting rods 21 of 19, the three pairs of side links of the 4th pair of connecting rod, second travelling nut 22, second drive screw 23, the second supports, 24, the three shaft couplings 25 and the 3rd controllable motor 26.
Wherein, first controllable motor 1 is fixedlyed connected with first roller gear 3 by first shaft coupling 2, and second roller gear 4 is fixedlyed connected with milling head cover upper cover plate 5, and milling head cover upper cover plate 5 and a pair of milling head overlap side cover plate 13 and all overlap 6 with milling head and fixedly connected, and are used for installation.Second controllable motor 7 and the 3rd controllable motor 26 are installed on respectively on support 9 and the support 24, and support 9 and support 24 all are fixed in the milling head cover 6.The first pair of connecting rod 12, the first pair of side link 14, the second pair of connecting rod 15, the second pair of side link 16, the 3rd pair of connecting rod 21, the 3rd pair of side link 20, the 4th pair of connecting rod 19 and the 4th pair of side link 18 are symmetrically arranged in the both sides of milling head electricity main shaft respectively.First drive screw 11 is fixedlyed connected with the axle of second controllable motor 7 by second shaft coupling 8, and second drive screw 23 is fixedlyed connected with the axle of the 3rd controllable motor 26 by the 3rd shaft coupling 25.One end of first pair of connecting rod 12 constitutes revolute pair with first travelling nut 10 respectively, and the other end constitutes revolute pair with first pair of side link 14 respectively.One end of second pair of connecting rod 15 constitutes revolute pair with first pair of side link 14 respectively, and the other end constitutes revolute pair with second pair of side link 16 respectively.One end of the 3rd pair of connecting rod 21 constitutes revolute pair with second travelling nut 22 respectively, and the other end constitutes revolute pair with the 3rd pair of side link 20 respectively.One end of the 4th pair of connecting rod 19 constitutes revolute pair with the 3rd pair of side link 20 respectively, and the other end constitutes revolute pair with the 4th pair of side link 18 respectively.The first pair of side link 14, second pair of side link 16, the 3rd pair of side link 20 and the 4th pair of side link 18 all are connected on the milling head cover 6 by revolute pair, and wherein second pair of side link 16 all fixedlyed connected with the electric main shaft 17 of milling head with the 4th pair of side link 18.
In the use, first controllable motor 1 of fixedlying connected with first roller gear 3 drives milling head cover 6 by gear drive and all members of being mounted thereon comprise the axis swing of milling head electricity main shaft 17 integral body along second roller gear 4, realize the swing of the one degree of freedom of milling head, its pivot angle can reach ± and 180 °.Second controllable motor 7 drives first travelling nut 10 by first drive screw 11 and moves back and forth, the 3rd controllable motor 26 drives second travelling nut 22 by second drive screw 23 and moves back and forth, first travelling nut 10 is by first pair of connecting rod 12, first pair of side link 14 and second pair of connecting rod 15 drive 16 motions of second pair of side link, second travelling nut 22 is by the 3rd pair of connecting rod 21, the 3rd pair of side link 20 and the 4th pair of connecting rod 19 drive 18 motions of the 4th pair of side link, thereby drive of fixed hinge axis relative milling head cover 6 swings of milling head electricity main shaft 17 along second pair of side link 16 and the 4th pair of side link 18, realize the swing of another free degree of milling head, its pivot angle can be greater than ± 90 °.
Claims (5)
1, a kind of double-screw drive type double pendulum angle milling head, comprise: first controllable motor, first shaft coupling, first roller gear, second roller gear, second controllable motor, second shaft coupling, first travelling nut, first drive screw, milling head electricity main shaft, second travelling nut, second drive screw, the 3rd shaft coupling and the 3rd controllable motor, it is characterized in that, also comprise: milling head cover upper cover plate, milling head cover, first support, four pairs of connecting rods, four pairs of side links, a pair of milling heads overlap side cover plate, second support; First controllable motor is fixedlyed connected with first roller gear by first shaft coupling, second roller gear is fixedlyed connected with milling head cover upper cover plate, and milling head cover upper cover plate is all fixedlyed connected with the milling head cover with a pair of milling head cover side cover plate, second controllable motor and the 3rd controllable motor are arranged at respectively on first and second supports, first and second supports all are fixed in the milling head cover, the four pairs of connecting rods and the four pairs of side links are symmetrically arranged in the both sides of milling head electricity main shaft respectively, first drive screw is fixedlyed connected with the axle of second controllable motor by second shaft coupling, second drive screw is fixedlyed connected with the axle of the 3rd controllable motor by the 3rd shaft coupling, one end of first pair of connecting rod constitutes revolute pair with first travelling nut respectively, the other end constitutes revolute pair with first pair of side link respectively, one end of second pair of connecting rod constitutes revolute pair with first pair of side link respectively, the other end constitutes revolute pair with second pair of side link respectively, one end of the 3rd pair of connecting rod constitutes revolute pair with second travelling nut respectively, the other end constitutes revolute pair with the 3rd pair of side link respectively, one end of the 4th pair of connecting rod constitutes revolute pair with the 3rd pair of side link respectively, the other end constitutes revolute pair with the 4th pair of side link respectively, four pairs of side links all are connected in milling head by revolute pair and put, and wherein all fixedly connected with milling head electricity main shaft with the 4th pair of side link for second pair.
2, double-screw drive type double pendulum angle milling head according to claim 1, it is characterized in that, described first controllable motor, by gear drive drive the milling head cover and on all members comprise that milling head electricity main shaft integral body swing the swing of the one degree of freedom of realization milling head along the second roller gear axis.
3, double-screw drive type double pendulum angle milling head according to claim 2 is characterized in that, described milling head electricity main shaft is ± 180 ° along the pendulum angle scope of the second roller gear axis.
4, double-screw drive type double pendulum angle milling head according to claim 1, it is characterized in that, described second controllable motor drives first travelling nut by first drive screw and moves back and forth, the 3rd controllable motor drives second travelling nut by second drive screw and moves back and forth, first travelling nut is by first pair of connecting rod, first pair of side link and second pair of connecting rod drive second pair of side link motion, second travelling nut is by the 3rd pair of connecting rod, the 3rd pair of side link and the 4th pair of connecting rod drive the 4th pair of side link motion, thereby drive milling head electricity main shaft along the swing of second pair of relative milling head cover of the fixed hinge axis with the 4th pair of side link, realize the swing of milling head along the free degree of the fixed hinge axis of second pair and the 4th pair side link.
5, double-screw drive type double pendulum angle milling head according to claim 4 is characterized in that, described milling head electricity main shaft along the pendulum angle scope of the fixed hinge axis of second pair and the 4th pair side link greater than ± 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710037295XA CN100443253C (en) | 2007-02-08 | 2007-02-08 | Double-screw drive type double pendulum angle milling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710037295XA CN100443253C (en) | 2007-02-08 | 2007-02-08 | Double-screw drive type double pendulum angle milling head |
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| Publication Number | Publication Date |
|---|---|
| CN101011798A CN101011798A (en) | 2007-08-08 |
| CN100443253C true CN100443253C (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710037295XA Expired - Fee Related CN100443253C (en) | 2007-02-08 | 2007-02-08 | Double-screw drive type double pendulum angle milling head |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081437B (en) * | 2015-09-07 | 2017-09-22 | 燕山大学 | Planetary gear type transmission A/C double pendulum angle milling heads |
| CN111036940A (en) * | 2019-12-31 | 2020-04-21 | 科德数控股份有限公司 | Linkage pendulum head structure |
| CN111036941A (en) * | 2019-12-31 | 2020-04-21 | 科德数控股份有限公司 | Multi-connecting-rod linkage angle accessory head |
| CN117620285A (en) * | 2024-01-25 | 2024-03-01 | 廊坊市伊贝格机械有限公司 | Transmission clearance adjustment control method, control system, equipment and medium |
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2007
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