CN208788130U - A kind of coaxial-type weight bearing balancing device - Google Patents
A kind of coaxial-type weight bearing balancing device Download PDFInfo
- Publication number
- CN208788130U CN208788130U CN201821674985.6U CN201821674985U CN208788130U CN 208788130 U CN208788130 U CN 208788130U CN 201821674985 U CN201821674985 U CN 201821674985U CN 208788130 U CN208788130 U CN 208788130U
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- China
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- ram
- retainer
- balancing
- balancing cylinder
- coaxial
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Abstract
The utility model 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.The utility model has the advantage of be fixed on balancing cylinder at driving motor, screw rod same lateral position, when ram moves downward, drive piston rod 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 utility model 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.
Utility model content
To solve the problems, such as in the prior art using nitrogen balance systematic influence lathe for machining machining accuracy, the utility model
A kind of coaxial-type weight bearing balancing device is provided, the purpose of realization can substantially reduce worked in reciprocating motion for the balancing device
The variation of driving force direction institute bending moment in journey, improves the driving rigidity of machine ram, greatlys improve machining accuracy.
To achieve the goals above, coaxial-type weight bearing balancing device provided by the utility model, including ram, ram sliding
It is connected on retainer, nut is fixed on retainer, screw drive motor is fixed at the top of ram, screw drive motor is defeated
Outlet 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；
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 the balancing device of the utility model, when screw drive motor does not enable, screw rod and nut are tightly
It is spirally connected, ram is fixed relative to retainer at this time, and when start screw drive motor, screw rod rotation is thus from nut
It loosens, ram can then move up and down on retainer, retainer is installed on machining tool, cooperate the work of machining tool
It uses.Balancing cylinder is fixed on driving motor, at screw rod same lateral position by the utility model, when ram moves downward,
Piston rod is driven to move 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 utility model has the advantage that including balancing cylinder to be fixed on and drive
At motor, screw rod same lateral position, when ram moves downward, piston rod is driven to move downward, to offset the weight of ram；Together
When balancing cylinder is set in this way, but also being straight square, straightness during ram drop between balancing cylinder and driving motor
Change it is small, to effectively improve machining accuracy.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model coaxial-type weight bearing balancing device；
Fig. 2 is the planar structure schematic diagram of the utility model coaxial-type 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
Below by conjunction with attached drawing, the utility model is further described in detail.
Shown in referring to Figures 1 and 2, a kind of coaxial-type weight bearing balancing device of the utility model body, including ram 1, it is sliding
Pillow is slidably connected on retainer 2, and nut 3 is fixed on retainer, screw drive motor 4, screw rod are fixed at the top of ram
Driving 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 is equipped on retainer
6；
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 same with driving motor, screw rod by the utility model
At side position, when ram moves downward, piston rod is driven 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 above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
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 at retainer (2) On, the top of fixture nut (3) on retainer, ram is fixed screw drive motor (4), and the rotation of screw drive motor output end connects It is connected to screw rod (5), 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, sliding block (12) is fixed on connecting plate, ram passes through straight line Track 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 |
|---|---|---|---|
| CN201821674985.6U CN208788130U (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 |
|---|---|---|---|
| CN201821674985.6U CN208788130U (en) | 2018-10-16 | 2018-10-16 | A kind of coaxial-type weight bearing balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208788130U true CN208788130U (en) | 2019-04-26 |
Family
ID=66212025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821674985.6U Active CN208788130U (en) | 2018-10-16 | 2018-10-16 | A kind of coaxial-type weight bearing balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208788130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108721A (en) * | 2018-10-16 | 2019-01-01 | 意特利（上海）科技有限公司 | A kind of coaxial-type weight bearing balancing device |
| CN116984927A (en) * | 2023-09-28 | 2023-11-03 | 南通百盛精密机械有限责任公司 | Transmission balancing device of numerical control machine tool |
-
2018
- 2018-10-16 CN CN201821674985.6U patent/CN208788130U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108721A (en) * | 2018-10-16 | 2019-01-01 | 意特利（上海）科技有限公司 | A kind of coaxial-type weight bearing balancing device |
| CN116984927A (en) * | 2023-09-28 | 2023-11-03 | 南通百盛精密机械有限责任公司 | Transmission balancing device of numerical control machine tool |
| CN116984927B (en) * | 2023-09-28 | 2023-12-01 | 南通百盛精密机械有限责任公司 | Transmission balancing device of numerical control machine tool |
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