CN109108721A - A kind of coaxial-type weight bearing balancing device - Google Patents
A kind of coaxial-type weight bearing balancing device Download PDFInfo
- Publication number
- CN109108721A CN109108721A CN201811203322.0A CN201811203322A CN109108721A CN 109108721 A CN109108721 A CN 109108721A CN 201811203322 A CN201811203322 A CN 201811203322A CN 109108721 A CN109108721 A CN 109108721A
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- Prior art keywords
- ram
- retainer
- balancing
- balancing cylinder
- coaxial
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- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 244000098674 Pinus cembroides Species 0.000 description 1
- 235000005013 Pinus cembroides Nutrition 0.000 description 1
- 235000008591 Pinus cembroides var edulis Nutrition 0.000 description 1
- 235000015593 Pinus monophylla Nutrition 0.000 description 1
- 235000015594 Pinus parryana Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of coaxial-type weight bearing balancing devices, including ram, ram is slidably connected on retainer, fixture nut on retainer, the fixed screw drive motor in the top of ram, screw drive motor output end is rotatably connected to screw rod, and screw rod protrudes into nut and is spirally connected with nut, and balancing cylinder is equipped on retainer；The balancing cylinder includes cylinder body, the piston rod moved back and forth in cylinder body；It is fixed with balancing cylinder connecting plate on the ram, in the ipsilateral side wall of the retainer that is slidably connected, the free end of the piston rod is fixedly connected with balancing cylinder connecting plate.It is an advantage of the current invention that being fixed on balancing cylinder at driving motor, screw rod same lateral position, when ram moves downward, piston rod is driven to move downward, to offset the weight of ram；Balancing cylinder is set so simultaneously, but also being straight square between balancing cylinder and driving motor, straightness variation is small during ram drop, to effectively improve machining accuracy.
Description
Technical field
The invention belongs to numerical control machine tool technique field, specially a kind of coaxial-type weight bearing balancing device.
Background technique
In current machining tool, especially large-scale machining tool, in order to improve the dynamic response of lathe, it will usually
Increase nitrogen balance system offsets ram weight on machine ram, improve lathe dynamic response while reducing motor load,
The nitrogen balance oil cylinder of nitrogen balance system is generally arranged at the opposite side of ram driving device, but during ram drop,
Nitrogen balance oil cylinder is changed greatly with the moment of flexure of force-stroke straightness in ram total travel is driven, and influences machining accuracy.
Summary of the invention
To solve the problems, such as that, in the prior art using nitrogen balance systematic influence lathe for machining machining accuracy, the present invention provides
A kind of coaxial-type weight bearing balancing device, the purpose of realization are that the balancing device can substantially reduce in moving back and forth the course of work
Driving force direction institute bending moment variation, improve the driving rigidity of machine ram, greatly improve machining accuracy.
To achieve the goals above, coaxial-type weight bearing balancing device provided by the invention, including ram, ram are slidably connected
In on retainer, being fixed with nut on retainer, screw drive motor, screw drive motor output end are fixed at the top of ram
It is rotatably connected to screw rod, screw rod protrudes into nut and is spirally connected with nut, and balancing cylinder is equipped on retainer；
The balancing cylinder includes cylinder body, the piston rod moved back and forth in cylinder body；
Balancing cylinder connecting plate, the piston rod are fixed on the ram, in the ipsilateral side wall of the retainer that is slidably connected
Free end be fixedly connected with balancing cylinder connecting plate.
When using balancing device of the invention, when screw drive motor does not enable, screw rod is tightly to be spirally connected with nut
, at this time ram relative to retainer be it is fixed, when start screw drive motor, screw rod rotation to from nut pine
Dynamic, ram can then move up and down on retainer, and retainer is installed on machining tool, cooperate the work of machining tool
It uses.Balancing cylinder is fixed on at driving motor, screw rod same lateral position by the present invention, when ram moves downward, is driven and is lived
Stopper rod moves downward, to offset the weight of ram.
Further, it is fixed with rectilinear orbit on ram side wall, is respectively fixed with connecting plate in the two sides of retainer, connected
Sliding block is fixed on plate, ram is slidably connected on sliding block by rectilinear orbit.The rectilinear orbit is located close to nut, balance
At oil cylinder position, the balancing cylinder connecting plate is located at below sliding block.The rectilinear orbit added can bear sliding rail gravity and put down
The moment of flexure that the oil cylinder gravity that weighs generates, reduces the load of driving ram.
Further, on ram, bearing block is installed at the upper and lower port of screw rod, screw rod is mounted on bearing block
It is interior.For the rotation for keeping lead screw more stable, so that the burden of driving ram movement will not be increased, bearing block is added.
Further, the output end for stating screw drive motor is connected with shaft coupling, and shaft coupling is rotatably connected to screw rod.It adds
The shaft coupling rotation that further makes screw rod more stable.
Further, balancing cylinder is mounted on inside retainer, is provided on retainer logical for being pierced by piston rod
Hole.In order to further keep the stabilization of retainer, balancing cylinder can be mounted on inside retainer.
By adopting the above technical scheme, the device have the advantages that including, by balancing cylinder be fixed on driving motor,
At screw rod same lateral position, when ram moves downward, piston rod is driven to move downward, to offset the weight of ram；While this
Balancing cylinder is arranged in sample, but also being straight square between balancing cylinder and driving motor, straightness changes during ram drop
It is small, to effectively improve machining accuracy.
Detailed description of the invention
Fig. 1 is the schematic perspective view of coaxial-type of the present invention weight bearing balancing device；
Fig. 2 is the planar structure schematic diagram of coaxial-type of the present invention weight bearing balancing device；
Wherein, 1, ram；2, retainer；3, nut；4, screw drive motor；5, screw rod；6, balancing cylinder；7, cylinder body；
8, piston rod；9, balancing cylinder connecting plate；10, rectilinear orbit；11, connecting plate；12, sliding block；13, bearing block；14, shaft coupling；
15, through-hole.
Specific embodiment
The present invention is described in further detail below by conjunction with attached drawing.
Shown in referring to Figures 1 and 2, a kind of coaxial-type weight bearing balancing device of body of the present invention, including ram 1, ram are sliding
It is dynamic to be connected on retainer 2, it is fixed with nut 3 on retainer, screw drive motor 4, screw rod driving are fixed at the top of ram
Motor output end is rotatably connected to screw rod 5, and screw rod protrudes into nut and is spirally connected with nut, and balancing cylinder 6 is equipped on retainer；
The balancing cylinder includes cylinder body 7, the piston rod moved back and forth in cylinder body 8；
Balancing cylinder connecting plate 9, the piston rod are fixed on the ram, in the ipsilateral side wall of the retainer that is slidably connected
Free end be fixedly connected with balancing cylinder connecting plate.Balancing cylinder is fixed on and driving motor, the ipsilateral position of screw rod by the present invention
Place is set, when ram moves downward, drives piston rod to move downward, to offset the weight of ram.
It is fixed with rectilinear orbit 10 on ram side wall, connecting plate 11 is respectively fixed in the two sides of retainer, on connecting plate
It is fixed with sliding block 12, ram is slidably connected on sliding block by rectilinear orbit.The rectilinear orbit is located close to nut, equilibrium oil
At cylinder position, the balancing cylinder connecting plate is located at below sliding block.The position specifically installed is in order to rectilinear orbit can be held
The moment of flexure generated by firmly gravity of ram and balancing cylinder gravity.
On ram, bearing block 13 is installed at the upper and lower port of screw rod, screw rod is mounted in bearing block.
The output end of the screw drive motor is connected with shaft coupling 14, and shaft coupling is rotatably connected to screw rod.
Balancing cylinder is mounted on inside retainer, and the through-hole 15 for being pierced by piston rod is provided on retainer.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
- The balancing device 1. a kind of coaxial-type is born a heavy burden, including ram (1), which is characterized in that ram is slidably connected to retainer (2) On, fixture nut (3) on retainer, ram top is fixed with screw drive motor (4), and the rotation of screw drive motor output end connects Screw rod (5) are connected to, screw rod protrudes into nut and is spirally connected with nut, and balancing cylinder (6) are equipped on retainer；The balancing cylinder includes cylinder body (7), the piston rod (8) moved back and forth in cylinder body；Balancing cylinder connecting plate (9) are fixed on the ram, in the ipsilateral side wall of the retainer that is slidably connected, the piston rod Free end is fixedly connected with balancing cylinder connecting plate.
- The balancing device 2. coaxial-type according to claim 1 is born a heavy burden, which is characterized in that straight line rail is fixed on ram side wall Road (10) is respectively fixed with connecting plate (11) in the two sides of retainer, fixes on connecting plate sliding block (12), and ram passes through straight line rail Road is slidably connected on sliding block.
- The balancing device 3. coaxial-type according to claim 1 is born a heavy burden, which is characterized in that on ram, positioned at the upper of screw rod Bearing block (13) are installed, screw rod is mounted in bearing block at lower port.
- The balancing device 4. coaxial-type according to claim 1 is born a heavy burden, which is characterized in that the output of the screw drive motor End is connected with shaft coupling (14), and shaft coupling is rotatably connected to screw rod.
- The balancing device 5. coaxial-type according to claim 1 is born a heavy burden, which is characterized in that balancing cylinder is mounted in retainer Portion is provided with the through-hole (15) for being pierced by piston rod on retainer.
- The balancing device 6. coaxial-type according to claim 2 is born a heavy burden, which is characterized in that the rectilinear orbit is located close to spiral shell At female, balancing cylinder position, the balancing cylinder connecting plate is located at below sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203322.0A CN109108721A (en) | 2018-10-16 | 2018-10-16 | A kind of coaxial-type weight bearing balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203322.0A CN109108721A (en) | 2018-10-16 | 2018-10-16 | A kind of coaxial-type weight bearing balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108721A true CN109108721A (en) | 2019-01-01 |
Family
ID=64854715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203322.0A Pending CN109108721A (en) | 2018-10-16 | 2018-10-16 | A kind of coaxial-type weight bearing balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247654A (en) * | 2020-10-13 | 2021-01-22 | 阿帕斯精机(上海)有限公司 | Z-axis balance structure for direct-drive machine tool |
| CN113523828A (en) * | 2021-08-09 | 2021-10-22 | 江苏日富传动机械有限公司 | Ram assembly |
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|---|---|---|---|---|
| US5484051A (en) * | 1993-10-12 | 1996-01-16 | Smc Kabushiki Kaisha | Balancer |
| US6041597A (en) * | 1998-06-22 | 2000-03-28 | Huang; Chih-Hsiang | Pneumatic/hydraulic balance weight system for mother machines |
| CN201009103Y (en) * | 2007-02-27 | 2008-01-23 | 江苏恒力组合机床有限公司 | Numerical control combined machine tool three-axis machining module |
| CN101367169A (en) * | 2008-09-04 | 2009-02-18 | 无锡开源机床集团有限公司 | Transverse beam guide rails apparatus |
| JP2010284773A (en) * | 2009-06-15 | 2010-12-24 | Mori Seiki Co Ltd | Machine tool |
| CN201760798U (en) * | 2010-09-06 | 2011-03-16 | 宁波天瑞精工机械有限公司 | Balancing device for Z shaft running gear of machine tool |
| CN201807942U (en) * | 2010-08-31 | 2011-04-27 | 东莞市巨冈机械工业有限公司 | Weighing system of numerical control machine tool |
| CN201881189U (en) * | 2010-12-21 | 2011-06-29 | 齐重数控装备股份有限公司 | High-precision numerical-control vertical lathe saddle driving device |
| CN202144027U (en) * | 2011-03-23 | 2012-02-15 | 纽威数控装备（苏州）有限公司 | Main spindle box balancing device |
| CN203292949U (en) * | 2013-01-31 | 2013-11-20 | 纽威数控装备（苏州）有限公司 | Main shaft box balance mechanism of large-scale machining center |
| CN103586698A (en) * | 2013-10-23 | 2014-02-19 | 杭州大天数控机床有限公司 | Machining center for gantry with four linear rails and ram |
| CN203449003U (en) * | 2013-08-13 | 2014-02-26 | 上海传贺自动化设备有限公司 | Cross-shaped sliding table for combined machine tool |
| CN203972878U (en) * | 2014-07-19 | 2014-12-03 | 山东永华机械有限公司 | The principal axis balance structure of 5-axis machining center |
| CN204504314U (en) * | 2015-01-23 | 2015-07-29 | 东莞市天佑数控机械有限公司 | A kind of vertical Finish Milling Machine spindle box mechanism |
| CN206717426U (en) * | 2017-05-26 | 2017-12-08 | 山东永华机械有限公司 | The split type beam structure of axle gantry machining center of bridge-type five |
| CN107498364A (en) * | 2017-09-27 | 2017-12-22 | 上海明索重型机械股份有限公司 | The ram driving structure of Digit Control Machine Tool |
| CN208788130U (en) * | 2018-10-16 | 2019-04-26 | 意特利（上海）科技有限公司 | A kind of coaxial-type weight bearing balancing device |
-
2018
- 2018-10-16 CN CN201811203322.0A patent/CN109108721A/en active Pending
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| US6041597A (en) * | 1998-06-22 | 2000-03-28 | Huang; Chih-Hsiang | Pneumatic/hydraulic balance weight system for mother machines |
| CN201009103Y (en) * | 2007-02-27 | 2008-01-23 | 江苏恒力组合机床有限公司 | Numerical control combined machine tool three-axis machining module |
| CN101367169A (en) * | 2008-09-04 | 2009-02-18 | 无锡开源机床集团有限公司 | Transverse beam guide rails apparatus |
| JP2010284773A (en) * | 2009-06-15 | 2010-12-24 | Mori Seiki Co Ltd | Machine tool |
| CN201807942U (en) * | 2010-08-31 | 2011-04-27 | 东莞市巨冈机械工业有限公司 | Weighing system of numerical control machine tool |
| CN201760798U (en) * | 2010-09-06 | 2011-03-16 | 宁波天瑞精工机械有限公司 | Balancing device for Z shaft running gear of machine tool |
| CN201881189U (en) * | 2010-12-21 | 2011-06-29 | 齐重数控装备股份有限公司 | High-precision numerical-control vertical lathe saddle driving device |
| CN202144027U (en) * | 2011-03-23 | 2012-02-15 | 纽威数控装备（苏州）有限公司 | Main spindle box balancing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247654A (en) * | 2020-10-13 | 2021-01-22 | 阿帕斯精机(上海)有限公司 | Z-axis balance structure for direct-drive machine tool |
| CN113523828A (en) * | 2021-08-09 | 2021-10-22 | 江苏日富传动机械有限公司 | Ram assembly |
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