CN201900506U - Hydraulic dynamic balance compensation device in machine tool of gantry machining center - Google Patents
Hydraulic dynamic balance compensation device in machine tool of gantry machining center Download PDFInfo
- Publication number
- CN201900506U CN201900506U CN2010206631419U CN201020663141U CN201900506U CN 201900506 U CN201900506 U CN 201900506U CN 2010206631419 U CN2010206631419 U CN 2010206631419U CN 201020663141 U CN201020663141 U CN 201020663141U CN 201900506 U CN201900506 U CN 201900506U
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- ram
- balancing cylinder
- moving crossbeam
- way valve
- oil cylinder
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Abstract
The utility model discloses a dynamic cross beam balance compensation device in a machine tool of a gantry machining center. The device comprises a left upright post, a right upright post, dynamic cross beams, sliding seats, rams, a dynamic cross beam left balance oil cylinder, a dynamic cross beam right balance oil cylinder, a ram left balance oil cylinder, a ram right balance oil cylinder, a proportional pressure-reducing valve, a one-way valve and a solenoid valve, wherein the dynamic cross beams are arranged on the left and right upright posts; the sliding seats can move laterally on the dynamic cross beams to cause the change of gravity center; the ram can vertically move in the sliding seats for replacing accessory heads to cause pressure difference; the dynamic cross beam left and right balance oil cylinders are symmetrically fixed on the left and right upright posts; piston rods of the dynamic cross beam left and right balance oil cylinders downward extend and are fixedly connected to the dynamic cross beams; the ram left balance oil cylinder and the ram right balance oil cylinder are symmetrically fixed on the sliding seats; piston rods of the ram left balance oil cylinder and the ram right balance oil cylinder upwards extend and fixedly connected to the rams; the proportional pressure-reducing valves are used for adjusting the pressure of an oil cylinder; the one-way valves are connected with the proportional pressure-reducing valves; and the solenoid valves are used for controlling the flowing direction of liquid in the one-way valves. The device provided by the utility model can be separated and overlapped to make up the gravity center inclined trend of the dynamic cross beams due to moving of the sliding seats and the pressure difference due to replacement of the accessory heads, and the operation stability and the positioning precision of a machining shaft of the machine tool are improved and further the machining precision of workpieces is improved.
Description
Technical field
The utility model relates to the hydraulic pressure dynamic balancing compensation arrangement in the gantry machining center lathe.
Background technology
The balance of moving crossbeam and ram generally adopts the mechanical balance system of weight counterweight in the gantry machining center lathe in early days, balanced compensated more loaded down with trivial details when changing the annex head, this compensation arrangement has hysteresis quality and mechanicalness to the adjusting of balance, and increased the complete machine weight and volume, have limitation and ineffective activity, in recent years, continuous development along with hydraulic technique, the technology of the moving crossbeam inclination of balancing cylinder compensation has appearred adopting, the pressure oil check valve of flowing through successively, balanced valve, be fixedly installed on the balancing cylinder of moving crossbeam both sides by ground support, output port at check valve connects overflow valve, the other end of overflow valve is connected with magnetic valve, output port at balanced valve connects pressure-detecting device, after pressure-detecting device detects the pressure variation, magnetic valve is controlled oil pressure by overflow valve, inclination to moving crossbeam is corrected, this compensation arrangement is only regulated the inclination of moving crossbeam, ram is changed the weight change failure of consideration that the annex head causes, the running stability of machine tooling axle and positioning accuracy still can be under some influence, and have influenced the machining accuracy of workpiece.
Summary of the invention
The purpose of this utility model provides a kind of by moving crossbeam inclination comprehensively being remedied with the ram weight change and then improving lathe to the hydraulic pressure dynamic balancing compensation arrangement in the gantry machining center lathe of the machining accuracy of workpiece.
For achieving the above object, the utility model provides the compensation arrangement of the hydraulic pressure dynamic balancing in a kind of gantry machining center lathe, comprise and being used between left and right every the left column that is used for supporting arrangement and the right column that are provided with, be horizontally set on the moving crossbeam on described left column and the described right column, being arranged on also can be along the slide of described moving crossbeam move left and right on the described moving crossbeam, being arranged on can be along the ram that moves under the described slide in the vertical direction in the described slide, moving crossbeam right side balancing cylinder on symmetrical moving crossbeam left side balancing cylinder and the described right column that vertically be arranged on the described left column, the vertical ram left side balancing cylinder and the right balancing cylinder of ram that must be arranged on the described slide of left-right symmetry, be communicated with the accumulator that the right balancing cylinder of described ram left side balancing cylinder and described ram is used for pressurize, described moving crossbeam left side balancing cylinder, the right balancing cylinder of described moving crossbeam is fixedly connected on described left column, on the described right column, the piston rod of described moving crossbeam left side balancing cylinder, the piston rod of the right balancing cylinder of described moving crossbeam stretches out left-right symmetry downwards and must be fixedly connected on the described moving crossbeam, described ram left side balancing cylinder, the right balancing cylinder of described ram is fixedly connected on the described slide, the piston rod of described ram left side balancing cylinder, the piston rod of the right balancing cylinder of described ram protrudes upward left-right symmetry and must be fixedly connected on the described ram, moving beam balance compensation arrangement in the described gantry machining center lathe also comprises first hydraulic control one-way valve that outlet is connected with described moving crossbeam left side balancing cylinder, second hydraulic control one-way valve that outlet is connected with the right balancing cylinder of described moving crossbeam, outlet and described ram left side balancing cylinder, the 3rd hydraulic control one-way valve that the right balancing cylinder of described ram is connected, the inlet of described first hydraulic control one-way valve be used to control described moving crossbeam left side balancing cylinder in first proportional pressure-reducing valve of oil pressure be connected, the inlet of described second hydraulic control one-way valve be used to control the right balancing cylinder of described moving crossbeam in second proportional pressure-reducing valve of oil pressure be connected, the inlet of described the 3rd hydraulic control one-way valve be used to control described ram left side balancing cylinder, the 3rd proportional pressure-reducing valve of oil pressure is connected in the right balancing cylinder of described ram.
Preferably, first solenoid directional control valve that is used to regulate flow direction in described first hydraulic control one-way valve and described second hydraulic control one-way valve, second solenoid directional control valve that is used to regulate flow direction in described the 3rd hydraulic control one-way valve are housed on the hydraulic pressure dynamic balancing compensation arrangement in the described gantry machining center lathe.
Because technique scheme utilization, the utility model compared with prior art has following advantage and effect: left-right symmetry is set must be fixed on the lathe left column, moving crossbeam left side balancing cylinder on the right column, the right balancing cylinder of moving crossbeam, the vertical ram left side balancing cylinder that must be fixed on the slide of left-right symmetry is set, the right balancing cylinder of ram, the piston rod of moving crossbeam left side balancing cylinder, the piston rod left-right symmetry of the right balancing cylinder of moving crossbeam must be fixedly connected on the moving crossbeam, the piston rod of ram left side balancing cylinder, the piston rod of the right balancing cylinder of ram protrudes upward and is fixedly connected on the ram, first proportional pressure-reducing valve by external electric control gear, the moving crossbeam of second proportional pressure-reducing valve control left side balancing cylinder, oil pressure in the right balancing cylinder of moving crossbeam, the 3rd proportional pressure-reducing valve control ram left side balancing cylinder by external electric control gear, oil pressure in the right balancing cylinder of ram, can carry out adjusting independent or stack to moving crossbeam inclination or ram weight change like this, improve the running stability and the positioning accuracy of machine tooling axle, and then improved the precision of workpiece processing.
Description of drawings
Accompanying drawing 1 is looked schematic diagram for master of the present utility model;
Accompanying drawing 2 is a hydraulic principle schematic diagram of the present utility model.
The specific embodiment
Referring to shown in Figure 1, moving crossbeam 3 is arranged on left column 13, on the right column 14, left column 13,14 pairs of moving crossbeams 3 of right column play supporting role, slide 4 is arranged on also can be along moving crossbeam 3 move left and right on the moving crossbeam 3, ram 5 is arranged in the slide 4 and can moves up and down along slide 4, annex head 24 is connected the lower end of ram 5, accessory joint storage 17 is arranged on the below of moving crossbeam 3 one ends, moving crossbeam left side balancing cylinder 1, right balancing cylinder 2 left-right symmetry of moving crossbeam get and vertically are fixedly installed on left column 13, on the right column 14, the piston rod 6 of moving crossbeam left side balancing cylinder 1, piston rod 7 left-right symmetry of the right balancing cylinder 2 of moving crossbeam get to stretch out downwards with moving crossbeam and are fixed together, ram left side balancing cylinder 15, vertical must being arranged on the slide 4 of right balancing cylinder 16 left-right symmetry of ram, the piston rod 18 of ram left side balancing cylinder 15, the piston rod 19 of the right balancing cylinder 16 of ram protrudes upward left-right symmetry and must be fixedly connected on the ram 5, when slide 4 is moved to the left along moving crossbeam 3, moving crossbeam 3 is tilted to the left, center of gravity is offset left, at this moment, apply the active force of real-time dynamic change upwards by 6 pairs of moving crossbeams of piston rod, 3 left sides of moving crossbeam left side balancing cylinder 1, correct the trend that moving crossbeam 3 is tilted to the left, the center of gravity of crossbeam 3 is replied steadily, when slide 4 moves right along moving crossbeam 3, moving crossbeam 3 is tilted to the right, center of gravity is offset to the right, at this moment, apply the active force of real-time dynamic change upwards by 6 pairs of moving crossbeams of piston rod, 3 right sides of moving crossbeam left side balancing cylinder 1, correct the trend that moving crossbeam 3 is tilted to the right, the center of gravity of crossbeam 3 is replied steadily, the ram lower end is connected annex head 24 and can changes in accessory joint storage 17, when changing heavier or lighter annex head, the capital is formed into pressure differential, at this moment, by increasing or reduce the piston rod 18 of ram left side balancing cylinder 15, the power that 19 pairs of rams 5 of piston rod of the right balancing cylinder 16 of ram apply, thus play the effect of equalizing pressure difference.
Referring to shown in Figure 2, the inlet of first hydraulic control one-way valve 8 is communicated with first proportional pressure-reducing valve 10, outlet is connected with moving crossbeam left side balancing cylinder 1, the inlet of second hydraulic control one-way valve 9 is communicated with second proportional pressure-reducing valve 11, outlet is connected with the right balancing cylinder 2 of moving crossbeam, the inlet of the 3rd hydraulic control one-way valve 20 is communicated with the 3rd proportional pressure-reducing valve 21, outlet and ram left side balancing cylinder 15, the right balancing cylinder 16 of ram is communicated with, be provided for regulating first solenoid directional control valve 12 of flow direction in first hydraulic control one-way valve 8 and second hydraulic control one-way valve 9, be used to regulate second solenoid directional control valve 22 of flow direction in the 3rd hydraulic control one-way valve 20, first proportional pressure-reducing valve 10, second proportional pressure-reducing valve 11, the 3rd proportional pressure-reducing valve 21 can outsidely connect electric control gear, before processing, obtain earlier the parameter of the position of slide 4 on moving crossbeam 3 and the center of gravity variation of moving crossbeam 3 by experiment, change the difference numbering of annex head and the parameter of the pressure differential that causes, add man-hour, real time position according to slide 4 move left and right on moving crossbeam 3, by regulating first proportional pressure-reducing valve 10, the openings of sizes of second proportional pressure-reducing valve 11 is regulated moving crossbeam left side balancing cylinder 1, the real-time change of oil pressure in the right balancing cylinder 2 of moving crossbeam, and then the tilt variation of the moving crossbeam 3 of elimination, difference numbering according to the annex head of changing, regulate ram left side balancing cylinder 15 by the openings of sizes of regulating the 3rd proportional pressure-reducing valve 21, the variation of oil pressure in the right balancing cylinder 16 of ram, first solenoid directional control valve 12 can be controlled first hydraulic control one-way valve 8, flow direction changes in second hydraulic control one-way valve 9, finish moving crossbeam left side balancing cylinder 1, the draining of the right balancing cylinder 2 of moving crossbeam, second solenoid directional control valve 22 can be controlled the 20 interior flow directions variations of the 3rd hydraulic control one-way valve and finish ram left side balancing cylinder 15, the draining of the right balancing cylinder 16 of ram, accumulator are communicated with ram left side balancing cylinder 15, the right balancing cylinder 16 of ram plays the pressurize effect.
Claims (2)
1. the hydraulic pressure dynamic balancing compensation arrangement in the gantry machining center lathe, comprise and being used between left and right every the left column that is used for supporting arrangement and the right column that are provided with, be horizontally set on the moving crossbeam on described left column and the described right column, being arranged on also can be along the slide of described moving crossbeam move left and right on the described moving crossbeam, being arranged on can be along the ram that moves under the described slide in the vertical direction in the described slide, moving crossbeam right side balancing cylinder on symmetrical moving crossbeam left side balancing cylinder and the described right column that vertically be arranged on the described left column, the vertical ram left side balancing cylinder and the right balancing cylinder of ram that must be arranged on the described slide of left-right symmetry, be communicated with the accumulator that the right balancing cylinder of described ram left side balancing cylinder and described ram is used for pressurize, it is characterized in that: described moving crossbeam left side balancing cylinder, the right balancing cylinder of described moving crossbeam is fixedly connected on described left column, on the described right column, the piston rod of described moving crossbeam left side balancing cylinder, the piston rod of the right balancing cylinder of described moving crossbeam stretches out left-right symmetry downwards and must be fixedly connected on the described moving crossbeam, described ram left side balancing cylinder, the right balancing cylinder of described ram is fixedly connected on the described slide, the piston rod of described ram left side balancing cylinder, the piston rod of the right balancing cylinder of described ram protrudes upward left-right symmetry and must be fixedly connected on the described ram, moving beam balance compensation arrangement in the described gantry machining center lathe also comprises first hydraulic control one-way valve that outlet is connected with described moving crossbeam left side balancing cylinder, second hydraulic control one-way valve that outlet is connected with the right balancing cylinder of described moving crossbeam, outlet and described ram left side balancing cylinder, the 3rd hydraulic control one-way valve that the right balancing cylinder of described ram is connected, the inlet of described first hydraulic control one-way valve be used to control described moving crossbeam left side balancing cylinder in first proportional pressure-reducing valve of oil pressure be connected, the inlet of described second hydraulic control one-way valve be used to control the right balancing cylinder of described moving crossbeam in second proportional pressure-reducing valve of oil pressure be connected, the inlet of described the 3rd hydraulic control one-way valve be used to control described ram left side balancing cylinder, the 3rd proportional pressure-reducing valve of oil pressure is connected in the right balancing cylinder of described ram.
2. the hydraulic pressure dynamic balancing compensation arrangement in the gantry machining center lathe according to claim 1 is characterized in that: first solenoid directional control valve that is used to regulate flow direction in described first hydraulic control one-way valve and described second hydraulic control one-way valve, second solenoid directional control valve that is used to regulate flow direction in described the 3rd hydraulic control one-way valve are housed on the hydraulic pressure dynamic balancing compensation arrangement in the described gantry machining center lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206631419U CN201900506U (en) | 2010-12-16 | 2010-12-16 | Hydraulic dynamic balance compensation device in machine tool of gantry machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206631419U CN201900506U (en) | 2010-12-16 | 2010-12-16 | Hydraulic dynamic balance compensation device in machine tool of gantry machining center |
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| Publication Number | Publication Date |
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| CN201900506U true CN201900506U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206631419U Expired - Lifetime CN201900506U (en) | 2010-12-16 | 2010-12-16 | Hydraulic dynamic balance compensation device in machine tool of gantry machining center |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481112A (en) * | 2013-09-26 | 2014-01-01 | 苏州江源精密机械有限公司 | Method for synchronously adjusting balance of transverse beam of numerical-control gantry machine tool with movable beam |
| CN104385044A (en) * | 2014-10-16 | 2015-03-04 | 清华大学 | Force balance system used for gantry machine tool |
| CN106736832A (en) * | 2017-02-23 | 2017-05-31 | 沈机集团昆明机床股份有限公司 | The balance control system of main spindle box or ram for lathe |
| CN110091209A (en) * | 2019-04-26 | 2019-08-06 | 广东润星科技有限公司 | A kind of feeding method of the double servo synchronization draggings of double stand column and beam lifting lathes |
| CN112496358A (en) * | 2020-11-25 | 2021-03-16 | 浙江侨宏机械制造有限公司 | Spindle box for numerical control machine tool and forming die thereof |
-
2010
- 2010-12-16 CN CN2010206631419U patent/CN201900506U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481112A (en) * | 2013-09-26 | 2014-01-01 | 苏州江源精密机械有限公司 | Method for synchronously adjusting balance of transverse beam of numerical-control gantry machine tool with movable beam |
| CN104385044A (en) * | 2014-10-16 | 2015-03-04 | 清华大学 | Force balance system used for gantry machine tool |
| CN104385044B (en) * | 2014-10-16 | 2016-06-01 | 清华大学 | For the force balancing system of Longmen machine tool |
| CN106736832A (en) * | 2017-02-23 | 2017-05-31 | 沈机集团昆明机床股份有限公司 | The balance control system of main spindle box or ram for lathe |
| CN110091209A (en) * | 2019-04-26 | 2019-08-06 | 广东润星科技有限公司 | A kind of feeding method of the double servo synchronization draggings of double stand column and beam lifting lathes |
| CN112496358A (en) * | 2020-11-25 | 2021-03-16 | 浙江侨宏机械制造有限公司 | Spindle box for numerical control machine tool and forming die thereof |
| CN112496358B (en) * | 2020-11-25 | 2022-02-01 | 永清县德华塑胶五金有限公司 | Spindle box for numerical control machine tool and forming die thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |