CN108098427B - Hydraulic gear-shifting device for numerically-controlled machine tool - Google Patents
Hydraulic gear-shifting device for numerically-controlled machine tool Download PDFInfo
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- CN108098427B CN108098427B CN201711190594.7A CN201711190594A CN108098427B CN 108098427 B CN108098427 B CN 108098427B CN 201711190594 A CN201711190594 A CN 201711190594A CN 108098427 B CN108098427 B CN 108098427B
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- gear
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
- B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
- B23Q5/145—Mechanical drives with means for varying the speed ratio step-by-step fluid-operated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to the hydraulic gear-shifting devices for numerically-controlled machine tool.Including gear housing, first gear axis and second gear axis equipped with up and down direction parallel arrangement in the gear housing, the first gear axis is equipped with double crosslinking sliding gear, the second gear axis is equipped with third gear and the 4th gear, the double crosslinking sliding gear includes the first gear being meshed with third gear and the second gear that is meshed with the 4th gear, hydraulic cylinder is also integrated in the gear housing, the piston of the hydraulic cylinder drives double crosslinking sliding gear sliding axially along first gear axis by connector, to realize first gear is meshed with third gear or second gear is meshed with the 4th gear two states.As shown from the above technical solution, the automatic switchover of gear may be implemented using hydraulic cylinder as dynamical element in the present invention in non-stop-machine situation, while idle gear mutually separates after shift, solves the problems, such as gear noise.
Description
The application is application number: 2015104682610, the applying date: on 08 03rd, 2015, denomination of invention: it is used for numerical control
The divisional application of the hydraulic gear-shifting device of lathe.
Technical field
The present invention relates to digit ctrol machine tool fields, and in particular to a kind of hydraulic gear-shifting device for numerically-controlled machine tool.
Background technique
With the continuous variation in market, the requirement to numerical control atomization degree is higher and higher, high efficiency, Gao Jinghua,
The numerically-controlled machine tool of low cost has become new lover in the market.Currently, the numerically controlled lathe of mechanical conversion architecture, mainly passes through tooth
The switching for taking turns gear realizes that the cutting moment of torque of lathe can be improved in the electrodeless variable-speed mode on gear, such mode.It is general this
The switching of kind of gear can be solved two ways: first is that by way of by pulling handle, i.e., be nibbled by manual switching gear
Conjunction mode changes the gears in gear；Second is that switching gear by way of electromagnetic clutch.Both above-mentioned sides
Formula all haves the shortcomings that respective: the first needs to stop lathe just and can be carried out operation, in this way by way of manually pulling handle
The continuity for having interrupted numerical control program execution, reduces production efficiency；Second by way of electromagnetic clutch existing for lack
Point is that gear noise is excessive, because in mode thus, working gear and not working gear conjunction portion mesh together, is thus increased
The noise in gear-box is added.
Summary of the invention
The purpose of the present invention is to provide a kind of hydraulic gear-shifting device for numerically-controlled machine tool, which can be realized not
The automatic switchover of gear is shut down, while can also solve the problems, such as gear noise.
To achieve the above object, the invention adopts the following technical scheme: including gear housing, setting is moistened in gear housing
Lubricating oil, the interior first gear axis and second gear axis equipped with up and down direction parallel arrangement of the gear housing, described first
Gear shaft is equipped with double crosslinking sliding gear, and the second gear axis is equipped with third gear and the 4th gear, the duplex
Shifting slide gear includes the first gear being meshed with third gear and the second gear that is meshed with the 4th gear, the gear
Hydraulic cylinder is also integrated in cabinet, the piston of the hydraulic cylinder drives double crosslinking sliding gear along first gear by connector
Axis slides axially, to realize first gear is meshed with third gear or second gear is meshed with the 4th gear two kinds of shapes
State；The intracorporal lubricating oil liquid level of the gear-box is between first gear and second gear lower end, the 4th gear
The involute shape groove or protrusion of lubricating oil of dishing out outward are set on towards the side of first gear；Or the 4th gear
The involute shape groove or protrusion of lubricating oil of dishing out outward are all set on two sides.
The connector is made of the shift fork for being parallel to the pull rod of first gear axis setting and being fixed on pull rod, institute
The pull rod stated is connected with the piston of hydraulic cylinder, and the claw of the shift fork is mutually fixed with double crosslinking sliding gear.
The touching bracket mutually fixed with shift fork is equipped with above the shift fork, it is in right and left that the gear housing, which is equipped with,
To arrangement first close to switch with second close to switch, when the first gear engage with third gear, touch bracket and
First close to switch contact, when the second gear is engaged with the 4th gear, touches bracket and second close to switch contact.
Described first close opens close to switch bracket with second by first with second close to switch respectively close to switch
Bracket is closed to be fixed on gear housing.
The touching bracket is integrally U-shaped, including vertical direction parallel arrangement the first plate and the second plate, the first plate with
The bottom of second plate is equipped with the third plate of connection the first plate and the second plate, and the third plate mutually fixes with shift fork, and described the
One plate and the second plate are matched close to switch and second close to switch with first respectively.
The diameter of the first gear is greater than the diameter of third gear, and the diameter of the second gear is less than the 4th gear
Diameter, when first gear is meshed with third gear, second gear and the 4th gear are in discrete state；Second gear and the 4th
When gear is meshed, first gear and third gear are in discrete state.
The hydraulic cylinder include cylinder body and be arranged in the forward and backward position of cylinder body oil cylinder front cover and oil cylinder rear cover,
Piston is equipped in cylinder body, oil cylinder front cover is equipped with the first oil inlet and the second oil inlet, first oil inlet and no bar
Chamber is connected, and second oil inlet is connected with rod chamber.
As shown from the above technical solution, the present invention uses hydraulic cylinder as dynamical element, can in non-stop-machine situation
To realize the automatic switchover of gear, the automated procedures of lathe are improved, while idle gear mutually separates after shift,
So the problem of also solving gear noise simultaneously.Although multiple shafts, gear are arranged in cabinet, to lubricating requirement
It is higher, but because being provided with dish out the outward groove or protrusion of lubricating oil in the 4th gear surface, it plays to being thrown off lubricating oil
Effect, it is possible to so that lubricating oil liquid level is located at first gear and second and go out between wheel；Lubricating oil lower in this way
Liquid level avoids lubricating oil and presses through greatly, causes to leak at sealing.So delicate structure of the invention is reliable, both realized
Stable equipment operation, low noise, while self shifter, lubrication is reliable, No leakage.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of hydraulic cylinder of the present invention；
Fig. 3 is the A-A direction view in Fig. 1.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
As shown in Figure 1, a kind of hydraulic gear-shifting device for numerically-controlled machine tool, including gear housing 1, set in gear housing 1
Set lubricating oil.Improvement is: first gear axis 2 and second gear axis 3 equipped with up and down direction parallel arrangement in gear housing 1,
First gear axis 2 is equipped with double crosslinking sliding gear, and second gear axis 3 is equipped with third gear 4 and the 4th gear 5, duplex sliding
Gear includes the first gear 6 being meshed with third gear 4 and the second gear 7 being meshed with the 4th gear 5, gear housing 1
It is inside also integrated with hydraulic cylinder 8, the piston 81 of hydraulic cylinder 8 drives double crosslinking sliding gear along first gear axis 2 by connector 9
Slide axially, with realize that first gear 6 is meshed with third gear 4 or second gear 7 is meshed with the 4th gear 5 two kinds
State.
In conjunction with shown in Fig. 1,3, the lubricating oil liquid level in the gear housing 1 is located under first gear 6 and second gear 7
Between end, the 4th gear 5 towards setting on the side of first gear 6 dish out outward lubricating oil involute shape groove or
Protrusion 51；Or the involute shape groove or protrusion for lubricating oil of dishing out outward are all set on two sides of the 4th gear 5
51.The left and right sides setting groove or protrusion 51 of 4th gear 5 in namely Fig. 1, or be at least arranged on the surface in left side
Groove or protrusion 51.The side of such 4th gear 5 is similar to the impeller of centrifugal pump, with the rotation of gear, can will moisten
Lubricating oil is drained to the gap between first gear 6 and second gear 7；Also it is drained to 7 lower end of second gear, so that second gear 7
The sufficient lubrication between the 4th gear 5.Profit is directly contacted with lubricating oil by first gear 6 between third gear 4 and first gear 6
It is sliding.Component lubrication is reliable in entire cabinet 1.
Because lubricating oil liquid level is significantly reduced compared with the position positioned at box height half of conventional structure, Lubricating Oil
Pressure drop is low, and the risk leaked at the sealing of first gear axis 2, second gear axis 3 and cabinet 1 significantly reduces.Although groove
Or the operation of protrusion 51 can generate certain noise, but in entire cabinet 1, generated noise is far below other component,
It can't hear so extraneous, it can't the overall noise that uses of lift apparatus.
Further, connector 9 is by being parallel to the pull rod 91 and be fixed on dialling on pull rod 91 that first gear axis 2 is arranged
92 composition of fork, pull rod 91 are connected with the piston 81 of hydraulic cylinder 8, and the claw of shift fork 92 is mutually fixed with double crosslinking sliding gear.
Further, the touching bracket 10 fixed with 92 phase of shift fork is equipped with above shift fork 92, gear housing 1 is equipped in a left side
The first of right direction arrangement is close to switch 11 and second close to switch 12, when first gear 6 is engaged with third gear 4, touching branch
Frame 10 is contacted with first close to switch 11, when second gear 7 is engaged with the 4th gear 5, touches bracket 10 and the second close switch
12 contacts.Signal is fed back to controller again close to switch 12 close to switch 11 and second by first, and controller controls hydraulic cylinder 8
Whether oil inlet.
Preferably, first passes through first close to switch 11 and second close to switch 12 close to switch bracket 13 and second respectively
It is fixed on gear housing 1 close to switch bracket 14.
Preferably, touching bracket 10 is whole U-shaped, the first plate 101 and the second plate including vertical direction parallel arrangement
102, the bottom of the first plate 101 and the second plate 102 is equipped with the third plate 103 of connection the first plate 101 and the second plate 102, third plate
103 fix with 92 phase of shift fork, and the first plate 101 and the second plate 102 approach switch 11 and the second close 12 phase of switch with first respectively
Cooperation.
Further, the diameter of first gear 6 is greater than the diameter of third gear 4, and the diameter of second gear 7 is less than the 4th tooth
The diameter of wheel 5, when first gear 6 is meshed with third gear 4, second gear 7 and the 4th gear 5 are in discrete state；Second
When gear 7 is meshed with the 4th gear 5, first gear 6 and third gear 4 are in discrete state.Namely when first gear 6 with
When third 4 joggleword of gear, second gear 7 is to separate with the 4th gear 5,5 joggleword of second gear 7 and the 4th gear
When, first gear 6 is to separate with third gear 4, will not generate very big noise during machine tool high speed operates in this way.
Further, as shown in Fig. 2, hydraulic cylinder 8 includes cylinder body 82 and the oil that the forward and backward position of cylinder body 82 is arranged in
Cylinder front cover 83 and oil cylinder rear cover 84, cylinder body 82 is interior to be equipped with piston 81, and oil cylinder front cover 83 is equipped with the first oil inlet 85 and second
Oil inlet 86, the first oil inlet 85 are connected with rodless cavity, and the second oil inlet 86 is connected with rod chamber.
Working principle of the present invention is as follows:
It is first gear 6 and third gear 4, second gear respectively as shown in Figure 1, being equipped with two-stage gear in gear housing 1
7 and the 4th gear 5, when first gear 6 is engaged with third gear 4, the operation of lathe low speed；When second gear 7 and the 4th gear 5
When engagement, machine tool high speed operation pushes shift fork 92 by hydraulic cylinder 8 to realize the switching of two pairs of gear engagement positions.
When hydraulic oil is from 85 oil inlet of the first oil inlet, when fuel-displaced from the second oil inlet 86, hydraulic oil pushes piston 81 to the right
Mobile, piston 81 drives pull rod 91 to move right with shift fork 92, and double crosslinking sliding gear moves right at this time, until second gear 7
It is meshed with the 4th gear 5, when second gear 7 is engaged with the 4th gear 5, the second plate 102 of touching bracket 10 connects with second
Nearly switch 12 is in contact, and second, which approaches switch 12, feeds back to controller for signal, at this time oil pump stop to the first oil inlet 85 into
Oil thus makes lathe be switched to top gear；It is fuel-displaced from the first oil inlet 85 when hydraulic oil is from 86 oil inlet of the second oil inlet
When, hydraulic oil pushes piston 81 to be moved to the left, and piston 81 drives pull rod 91 and shift fork 92 to be moved to the left, at this time double crosslinking sliding gear
It is moved to the left, until first gear 6 is meshed with third gear 4, when first gear 6 is engaged with third gear 4, touches bracket
10 the first plate 101 is in contact with first close to switch 11, and signal is fed back to controller close to switch 11 by first, at this time oil pump
Stop thus lathe being made to be switched to low or first gear to 86 oil inlet of the second oil inlet.
The beneficial effects of the present invention are: 1) of the invention hydraulic gear-shifting device can make lathe in non-stop-machine situation
Under, the free switching in top gear and low or first gear, improves the automated procedures of lathe automatically；2) after shifting gears, idle tooth
Wheel group is separation, and such lathe will not generate biggish noise during running at high speed.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (1)
1. a kind of hydraulic gear-shifting device for numerically-controlled machine tool, including gear housing (1), gear housing (1) is interior to be arranged lubricating oil,
It is characterized by: first gear axis (2) and second gear axis equipped with up and down direction parallel arrangement in the gear housing (1)
(3), the first gear axis (2) is equipped with double crosslinking sliding gear, and the second gear axis (3) is equipped with third gear
(4) with the 4th gear (5), the double crosslinking sliding gear includes first gear (6) Ji Yu being meshed with third gear (4)
The second gear (7) that four gears (5) are meshed, the gear housing (1) is interior to be also integrated with hydraulic cylinder (8), described hydraulic
The piston (81) of oil cylinder (8) drives double crosslinking sliding gear sliding axially along first gear axis (2) by connector (9), with reality
The existing two states that first gear (6) are meshed with third gear (4) or second gear (7) is meshed with the 4th gear (5)；
The connector (9) is by being parallel to the pull rod (91) of first gear axis (2) setting and being fixed on pull rod (91)
Shift fork (92) composition, the pull rod (91) is connected with the piston (81) of hydraulic cylinder (8), the claw of the shift fork (92) with pair
Connection shifting slide gear is mutually fixed；
Be equipped with above the shift fork (92) with shift fork (92) mutually fixed touching bracket (10), on the gear housing (1)
Equipped in left and right directions arrangement first close to switch (11) with second close to switch (12), the first gear (6) and the
When three gears (4) engage, touching bracket (10) is contacted with first close to switch (11), the second gear (7) and the 4th tooth
When taking turns (5) engagement, touching bracket (10) is contacted with second close to switch (12)；
The touching bracket (10) is whole U-shaped, the first plate (101) and the second plate including vertical direction parallel arrangement
(102), the bottom of the first plate (101) and the second plate (102) is equipped with the third plate of connection the first plate (101) and the second plate (102)
(103), the third plate (103) is mutually fixed with shift fork (92), first plate (101) and the second plate (102) respectively with
First matches close to switch (11) and second close to switch (12)；
Lubricating oil liquid level in the gear housing (1) is located between first gear (6) and second gear (7) lower end, described
The 4th gear (5) dish out outward the involute shape groove or protrusion of lubricating oil towards setting on the side of first gear (6)
(51)；Or the involute shape groove or protrusion for lubricating oil of dishing out outward are all set on two sides of the 4th gear (5)
(51)；
The hydraulic cylinder (8) includes the oil cylinder front cover (83) of cylinder body (82) and setting in cylinder body (82) forward and backward position
With oil cylinder rear cover (84), piston (81) are equipped in cylinder body (82), and oil cylinder front cover (83) is equipped with the first oil inlet (85) and the
Two oil inlets (86), first oil inlet (85) are connected with rodless cavity, second oil inlet (86) and rod chamber phase
Even；
Described first close to switch (11) with second close to switch (12) respectively by first close to switch bracket (13) and the
Two are fixed on gear housing (1) close to switch bracket (14)；
The diameter of the first gear (6) is greater than the diameter of third gear (4), and the diameter of the second gear (7) is less than the 4th
The diameter of gear (5), when first gear (6) is meshed with third gear (4), second gear (7) and the 4th gear (5) are in and divide
From state；When second gear (7) is meshed with the 4th gear (5), first gear (6) and third gear (4) are in discrete state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190594.7A CN108098427B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for numerically-controlled machine tool |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190594.7A CN108098427B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for numerically-controlled machine tool |
| CN201510468261.0A CN105014459B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for Digit Control Machine Tool |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510468261.0A Division CN105014459B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for Digit Control Machine Tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108098427A CN108098427A (en) | 2018-06-01 |
| CN108098427B true CN108098427B (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510468261.0A Active CN105014459B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for Digit Control Machine Tool |
| CN201711190594.7A Active CN108098427B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for numerically-controlled machine tool |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510468261.0A Active CN105014459B (en) | 2015-08-03 | 2015-08-03 | Hydraulic gear-shifting device for Digit Control Machine Tool |
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| CN (2) | CN105014459B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI603809B (en) * | 2016-03-02 | 2017-11-01 | Spindle gearshift | |
| CN107448600A (en) * | 2017-09-12 | 2017-12-08 | 都匀东方机床有限公司 | Digital controlled planer machine gearbox hydraulic gear shifting structure |
| CN108971526A (en) * | 2018-09-29 | 2018-12-11 | 中山市誉胜智能科技有限公司 | Automatic gear shifting spindle box for numerical control machine tool |
| CN110640597B (en) * | 2019-10-12 | 2020-12-18 | 浙江欧托电气有限公司 | Polishing equipment for changing smoothness of aluminum plate by changing rotating frequency |
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| US3089572A (en) * | 1961-06-07 | 1963-05-14 | Cincinnati Milling Machine Co | Machine tool drive system control mechanism |
| JPS6130302A (en) * | 1984-06-29 | 1986-02-12 | Taro Takahashi | Cnc lathe for precision lead machining |
| US4643037A (en) * | 1984-09-05 | 1987-02-17 | Kearney & Trecker Corporation | Gear change mechanism |
| CN2594585Y (en) * | 2002-12-30 | 2003-12-24 | 江苏神通阀门有限公司 | Electrohydraulic device of partial rotating valve |
| CN2770864Y (en) * | 2005-02-06 | 2006-04-12 | 齐齐哈尔二机床(集团)三明制造有限公司 | Machine tool spindle automatic gear-shifting mechanism |
| CN201747894U (en) * | 2010-06-23 | 2011-02-16 | 常州市第二齿轮厂有限公司 | Second-speed gear |
| CN202185738U (en) * | 2011-06-24 | 2012-04-11 | 芜湖红旗重型机床有限公司 | Turning and milling separating mechanism of composite turning and milling machine tool |
| CN202301899U (en) * | 2011-09-15 | 2012-07-04 | 无锡桥联数控机床有限公司 | Gearshift mechanism for main transmission case |
| CN103423431A (en) * | 2013-09-05 | 2013-12-04 | 林会明 | Hydraulic shifting system of vehicle mechanical gearbox |
| CN203887599U (en) * | 2014-05-19 | 2014-10-22 | 山东鲁南华源数控股份有限公司 | Mechanical two-gear spindle transmission mechanism based on frequency conversion speed regulation |
| CN203918602U (en) * | 2014-07-11 | 2014-11-05 | 台州创兴环保科技有限公司 | A kind of Digit Control Machine Tool that has high accuracy power output system |
| CN104369044A (en) * | 2014-11-12 | 2015-02-25 | 桐乡胜辉精密机械有限公司 | Vertical machining device |
| CN204321715U (en) * | 2014-12-12 | 2015-05-13 | 山东永华机械有限公司 | The gearshift of Digit Control Machine Tool gear type main shaft |
| CN204308657U (en) * | 2014-12-16 | 2015-05-06 | 齐齐哈尔齐一机工业产品有限公司 | Lathe three speed change oil cylinders of single cylinder single-piston rod |
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2015
- 2015-08-03 CN CN201510468261.0A patent/CN105014459B/en active Active
- 2015-08-03 CN CN201711190594.7A patent/CN108098427B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105014459A (en) | 2015-11-04 |
| CN105014459B (en) | 2018-03-23 |
| CN108098427A (en) | 2018-06-01 |
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Effective date of registration: 20190920 Address after: 225300 North Side of Taizhu Road Modern Enterprise in Hailing District, Taizhou City, Jiangsu Province Applicant after: Taizhou Hailing Zhenze Machinery Manufacturing Co., Ltd. Address before: 450000 Zhengzhou Free Trade Experimental Zone, Zhengzhou City, Henan Province Applicant before: Henan Goldman Sachs Management Consulting Co., Ltd. |
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