WO2019109826A1 - Negative-pressure balance weight device for machine tool - Google Patents
Negative-pressure balance weight device for machine tool Download PDFInfo
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- WO2019109826A1 WO2019109826A1 PCT/CN2018/117370 CN2018117370W WO2019109826A1 WO 2019109826 A1 WO2019109826 A1 WO 2019109826A1 CN 2018117370 W CN2018117370 W CN 2018117370W WO 2019109826 A1 WO2019109826 A1 WO 2019109826A1
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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
- 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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- the invention relates to the technical field of numerical control machine tools, in particular to a negative pressure weighting device for a machine tool.
- the gravity axis of CNC machine tools is guaranteed to have high precision when moving at high speed.
- the gravity axis of the CNC machine tool moves up and down. Due to the inertia, the stability of the weight of the gravity axis directly affects the accuracy of its movement, especially in the micro-scale machine tools.
- Counterweight weight simple structure and low failure rate; it uses the weight of the weight body to offset the weight of the gravity axis unit, thereby improving the fast moving speed of the machine tool, but the weight body will appear when the high speed and acceleration are large. Part of the weight loss, when the balance of gravity axis effect will be reduced, the response characteristics are poor, not suitable for high-speed cutting.
- Cylinder counterweight See Figure 1, Figure 2, which transmits the air pressure to the cylinder and then to the gravity axis unit, which gives the gravity shaft an upward force to achieve the effect of balancing the gravity axis. Therefore, the speed of the movement of the gravity axis of the machine tool is appropriately increased.
- the heavier weight is equipped with a significant speed to increase the movement of the gravity axis.
- Hydraulic counterweight The principle of counterweight is consistent with the cylinder weight, but the fluidity of the hydraulic medium is poor, which makes the weight of this weight method poor, and is not suitable for high-speed cutting.
- Nitrogen counterweight This counterweight method uses the principle of the accumulator to transfer the gas to the oil, and controls the balance cylinder to move up and down with the gravity axis to achieve higher speed and higher precision machining. Nitrogen counterweights do not require external power equipment to save energy, and are currently the most widely used on the market. However, when the gravity axis moves up and down, the pressure in the energy storage tank changes, causing the weight to be inaccurate, thereby affecting the machining accuracy and the stability of the machine tool.
- the object of the present invention is to overcome the deficiencies of the prior art and adapt to the actual needs, and to provide a negative pressure weighting device for a machine tool with novel structural design, fast response speed and high speed cutting.
- a machine tool negative pressure counterweight device which comprises a machine tool body and a gravity shaft disposed on the machine body, wherein the machine body is provided with a cylinder for supporting a gravity shaft, and the cylinder body/telescopic shaft is connected with the machine body, the cylinder
- the telescopic shaft/body is coupled to the top end of the gravity shaft;
- the cylinder is a negative pressure cylinder, and further includes a negative pressure supply source for providing a constant negative pressure to the cylinder, and a stable negative pressure is provided to the cylinder by a negative pressure supply source
- the weight axis is weighted by a cylinder.
- the negative pressure supply source comprises a negative pressure pump connected to the cylinder through a gas pipe.
- an energy storage tank is further included, the cylinder is connected to the energy storage tank, and the vacuum pump is also connected to the energy storage tank.
- a first one-way valve is disposed on the pipeline between the energy storage tank and the negative pressure pump.
- the cylinders are two. At this time, the negative pressure ports of the two cylinders communicate with the energy storage tank through the pipeline.
- a double vent valve is disposed on the pipeline between the negative pressure ports of the two cylinders, and a second one-way valve is disposed on the gas pipe between the energy storage tank and the adjacent cylinder;
- the first check valve, the second check valve, and the double vent valve are all solenoid valves, and further include a PLC controller, wherein the first check valve, the second check valve, and the double vent valve are both Connected to the PLC controller;
- the method further includes an electronic negative pressure gauge disposed on the energy storage tank; the electronic negative pressure gauge is also correspondingly connected to the PLC controller.
- an electronic negative pressure gauge is respectively disposed on the negative pressure port ends of the two cylinders, and at this time, two electronic negative pressure gauges on the negative pressure port end are also connected with the PLC controller. .
- the design can carry out the weight support of the gravity shaft by the principle of negative pressure.
- the accumulation of gas in the cylinder cavity can be avoided, especially when the telescopic shaft on the cylinder is retracted, the positive pressure cylinder in the prior art can be solved.
- the phenomenon of gas accumulation and gravity axis card tonnage can meet the requirements of high speed and high precision cutting.
- Figure 1 is a schematic diagram of the principle of using a cylinder arrangement
- FIG. 2 is a schematic diagram showing the principle of gas accumulation and clogging in the existing cylinder
- Figure 3 is a schematic structural diagram of the present design
- Figure 4 is a schematic diagram of the application structure of the present design
- Figure 5 is a schematic diagram of the principle structure of the present design
- Embodiment 1 A machine tool negative pressure counterweight device, see FIG. 3; it comprises a machine tool body 1, a gravity shaft 3 disposed on the machine tool body 1, and a gravity shaft 3 connected to the machine tool body 1 by a linear motor, the machine tool body
- the upper 1 is provided with a cylinder 4 for supporting a gravity shaft, and the body/telescopic shaft of the cylinder 4 is connected to the machine body, and the telescopic shaft/body of the cylinder is connected to the top end of the gravity shaft (the above is a prior art).
- the cylinder 4 in the present design is a negative pressure cylinder, and further includes a negative pressure supply source that supplies a constant negative pressure to the cylinder 4, and provides a stable negative pressure to the cylinder through the negative pressure supply source to pass through the cylinder.
- the gravity axis is weighted.
- the negative pressure supply source includes a negative pressure pump, an energy storage tank, the cylinder is connected to the energy storage tank, and the negative pressure pump is also connected to the energy storage tank.
- the negative pressure pump and the energy storage tank can provide a constant negative pressure to the cylinder, and the negative pressure can realize the support of the cylinder on the telescopic shaft of the cylinder, and the tension of the cylinder on the gravity axis can be achieved by the negative pressure as much as possible. It is equal to the gravity of the gravity axis, which can reduce the load capacity of the linear motor, reduce the load of the motor and improve the sensitivity of the motor. Moreover, due to the use of the negative pressure cylinder, the cylinder inside the cylinder can avoid the gas quickly recovering from the telescopic shaft. When gas accumulation and clogging occur, the rapid response capability of the gravity axis is improved, and the requirements for high-speed and high-precision cutting can be achieved.
- a first check valve 9 is disposed on the pipeline between the energy storage tank 8 and the negative pressure pump 10.
- the capacity of the energy storage tank can be retained by the closing of the first one-way valve 9, so that the negative pressure pump can provide a stable negative pressure to the cylinder through the energy storage tank, and if the negative pressure in the energy storage tank
- the first check valve 9 is opened, the first check valve 9 is opened, and the negative pressure pump is opened to close the first check valve 9 after the negative pressure in the energy storage tank reaches the requirement.
- Embodiment 2 referring to FIG. 4 to FIG. 5, the same points as Embodiment 1 are not described again, except that the cylinders 4 are two, and at this time, the negative pressure ports of the two cylinders 4 pass. After the pipeline is connected, it is connected to the energy storage tank 8.
- a double vent valve 14 is disposed on the pipeline between the negative pressure ports of the two cylinders, and a second one-way valve 13 is disposed on the air pipe between the energy storage tank 8 and the adjacent cylinder 4;
- the first check valve, the second check valve and the double vent valve are all solenoid valves, and further comprise a PLC controller, wherein the first check valve, the second check valve and the double vent valve are both The PLC controller is connected; and further includes an electronic negative pressure gauge 12 disposed on the energy storage tank; the electronic negative pressure gauge is also connected to the PLC controller.
- an electronic negative pressure gauge 15 and 16 are respectively disposed on the negative pressure port ends of the two cylinders 4. At this time, the two electronic negative pressure gauges 15 and 16 located at the negative pressure port end are also The PLC controller 11 is correspondingly connected.
- the above two cylinders work at the same time.
- the second check valve and the double vent valve are all closed, and the electronic negative pressure gauges 12, 15, 16 are in real-time monitoring state, if the energy storage tank is negative
- the pressure is adjusted by the negative pressure pump; and if the negative pressure in one of the cylinders is lower than the preset value, at this time, the double vent valve is opened to cause the negative pressure in the two cylinders to self-adjust, when When the negative pressure value in the two cylinders is within the allowable error range after the double vent valve is opened, the double vent valve is closed again; and when the negative pressure value in the two cylinders after the double vent valve is opened is no longer allowed within the error range,
- the second one-way valve is opened and adjusted by the energy storage tank, and when the negative pressure value in the two cylinders reaches a preset value, the second one-way valve and the double vent valve are closed again; the above-mentioned negative pressure value monitoring
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Abstract
A negative-pressure balance weight device for a machine tool comprises a machine tool body (1) and a gravity shaft (3) disposed on the machine tool body (1). The machine tool body (1) is provided with an air cylinder (4) used for supporting the gravity shaft (3). A body/a telescopic shaft of the air cylinder (4) is connected to the machine tool body (1). The telescopic shaft/the body of the air cylinder (4) is connected to the top end of the gravity shaft (3). The air cylinder (4) is a negative-pressure air cylinder. The negative-pressure balance weight device for a machine tool also comprises a negative-pressure supply source used for supplying a constant negative pressure to the air cylinder (4). The negative-pressure balance weight device for a machine tool has a high response speed, so that the machine tool can reach a high-speed cutting requirement.
Description
本发明涉及数控机床技术领域,尤其涉及一种机床负压配重装置。The invention relates to the technical field of numerical control machine tools, in particular to a negative pressure weighting device for a machine tool.
为了提高数控机床重力轴在高速运动时的平稳性,保证数控机床的重力轴在高速运动时具有高精度。数控机床的重力轴在上下移动明由于惯性的原因,重力轴配重的平稳性的好坏直接影响其移动的精度,特别是在微米级的机床其影响最为明显。In order to improve the stability of the gravity axis of CNC machine tools during high-speed movement, the gravity axis of CNC machine tools is guaranteed to have high precision when moving at high speed. The gravity axis of the CNC machine tool moves up and down. Due to the inertia, the stability of the weight of the gravity axis directly affects the accuracy of its movement, especially in the micro-scale machine tools.
目前国内数控机床常用的配重方式如下:At present, the commonly used weighting methods for domestic CNC machine tools are as follows:
1、重锤配重:结构简单,故障率低;它是用配重体的重量平抵消重力轴单元的重量,从而提高机床的快移速度,但在高速度和加速度较大时会出现配重体的部分重量失重,这时平衡重力轴的效果就会降低,应答特性差,不适合高速切削。1. Counterweight weight: simple structure and low failure rate; it uses the weight of the weight body to offset the weight of the gravity axis unit, thereby improving the fast moving speed of the machine tool, but the weight body will appear when the high speed and acceleration are large. Part of the weight loss, when the balance of gravity axis effect will be reduced, the response characteristics are poor, not suitable for high-speed cutting.
2、气缸配重:参见图1、图2,其是将气压传递到气缸上进而传送到重力轴单元,给重力轴有向上的力,从而达到平衡重力轴的效果。从而适当的提高机床重力轴移动的速度。较重锤配重配有明显的提升重力轴移动的速度,但是,在重力轴高速切削时,其重力高将发生高频率的上下往复运动,而在重力轴往复的过程中,其气缸伴随着做上下的往复运动,由于频率高,在气缸的伸缩轴向上运动时,其气缸的气体需要快速的排出,而在气缸内的气体排出时,由于气缸内部空间有限,其气体会在气缸内的气口处(图2中圆圈内区域)聚集造成气体堵塞现象,此现象将影响气缸的相应速度,造成重力轴的卡顿,因此其还是无法达到高速高精的要求。2. Cylinder counterweight: See Figure 1, Figure 2, which transmits the air pressure to the cylinder and then to the gravity axis unit, which gives the gravity shaft an upward force to achieve the effect of balancing the gravity axis. Therefore, the speed of the movement of the gravity axis of the machine tool is appropriately increased. The heavier weight is equipped with a significant speed to increase the movement of the gravity axis. However, when the gravity axis is cut at high speed, the high gravity will occur at high frequency up and down reciprocating motion, and in the process of reciprocating the gravity axis, the cylinder is accompanied by The upper and lower reciprocating motions, because of the high frequency, when the cylinder moves in the telescopic axial direction, the gas of the cylinder needs to be quickly discharged, and when the gas in the cylinder is discharged, the gas will be in the cylinder due to the limited internal space of the cylinder. The gas port (the area inside the circle in Fig. 2) gathers to cause gas blockage. This phenomenon will affect the corresponding speed of the cylinder, causing the gravity axis to be stuck, so it still cannot meet the requirements of high speed and high precision.
3、液压配重:配重的原理与气缸配重一致,但是液压的介质的流动性差,从而使得这种配重方式的应答性差,不适合高速切削。3. Hydraulic counterweight: The principle of counterweight is consistent with the cylinder weight, but the fluidity of the hydraulic medium is poor, which makes the weight of this weight method poor, and is not suitable for high-speed cutting.
4、氮气配重:这种配重方式是利用蓄能器的原理将气转油,控制平衡缸配合重力轴的上下移动,以实现较高速度和较高精度的加工。氮气配重无需外动力设备,节省能源,目前市场上应用最广。但是重力轴上下移动时,蓄能罐内的压力变动,造成配重不准,进而影响加工精度和机床的稳定性。4. Nitrogen counterweight: This counterweight method uses the principle of the accumulator to transfer the gas to the oil, and controls the balance cylinder to move up and down with the gravity axis to achieve higher speed and higher precision machining. Nitrogen counterweights do not require external power equipment to save energy, and are currently the most widely used on the market. However, when the gravity axis moves up and down, the pressure in the energy storage tank changes, causing the weight to be inaccurate, thereby affecting the machining accuracy and the stability of the machine tool.
发明内容Summary of the invention
本发明的目的在于克服现有技术的不足,适应现实需要,提供一种结构设计新颖、 应答速度快、可达到高速切削的机床负压配重装置。The object of the present invention is to overcome the deficiencies of the prior art and adapt to the actual needs, and to provide a negative pressure weighting device for a machine tool with novel structural design, fast response speed and high speed cutting.
为了实现本发明的目的,本发明所采用的技术方案为:In order to achieve the object of the present invention, the technical solution adopted by the present invention is:
设计一种机床负压配重装置,它包括机床本体、设置于机床本体上的重力轴,所述机床本体上设有用于支撑重力轴的气缸,气缸的本体/伸缩轴与机床本体连接,气缸的伸缩轴/本体与重力轴的顶端连接;所述气缸为负压气缸,还包括为所述气缸提供恒定负压的负压提供源,通过负压提供源对所述气缸提供稳定的负压以通过气缸对所述重力轴配重。A machine tool negative pressure counterweight device is designed, which comprises a machine tool body and a gravity shaft disposed on the machine body, wherein the machine body is provided with a cylinder for supporting a gravity shaft, and the cylinder body/telescopic shaft is connected with the machine body, the cylinder The telescopic shaft/body is coupled to the top end of the gravity shaft; the cylinder is a negative pressure cylinder, and further includes a negative pressure supply source for providing a constant negative pressure to the cylinder, and a stable negative pressure is provided to the cylinder by a negative pressure supply source The weight axis is weighted by a cylinder.
优选的,所述负压提供源包括通过气管与气缸对应连接的负压泵。Preferably, the negative pressure supply source comprises a negative pressure pump connected to the cylinder through a gas pipe.
优选的,还包括一储能罐,所述气缸与所述储能罐连接,所述负压泵亦与所述储能罐连接。Preferably, an energy storage tank is further included, the cylinder is connected to the energy storage tank, and the vacuum pump is also connected to the energy storage tank.
优选的,所述储能罐与所述负压泵之间的管道上设有一第一单向阀。Preferably, a first one-way valve is disposed on the pipeline between the energy storage tank and the negative pressure pump.
优选的,所述气缸为两个,此时,两个所述气缸的负压口通过管路连通后与储能罐连通。Preferably, the cylinders are two. At this time, the negative pressure ports of the two cylinders communicate with the energy storage tank through the pipeline.
优选的,两个气缸的负压口之间的管路上设有一双通气阀,所述储能罐与邻近的气缸之间的气管上设有第二单向阀;Preferably, a double vent valve is disposed on the pipeline between the negative pressure ports of the two cylinders, and a second one-way valve is disposed on the gas pipe between the energy storage tank and the adjacent cylinder;
优选的,所述第一单向阀、第二单向阀、双通气阀均为电磁阀,还包括一PLC控制器,所述第一单向阀、第二单向阀、双通气阀均与所述PLC控制器连接;Preferably, the first check valve, the second check valve, and the double vent valve are all solenoid valves, and further include a PLC controller, wherein the first check valve, the second check valve, and the double vent valve are both Connected to the PLC controller;
优选的,还包括设置于储能罐上的电子式负压表;所述电子式负压表亦与所述PLC控制器对应连接。Preferably, the method further includes an electronic negative pressure gauge disposed on the energy storage tank; the electronic negative pressure gauge is also correspondingly connected to the PLC controller.
优选的,两个所述气缸的负压气口端上亦分别设有一电子式负压表,此时,位于负压气口端上的两个电子式负压表亦与所述PLC控制器对应连接。Preferably, an electronic negative pressure gauge is respectively disposed on the negative pressure port ends of the two cylinders, and at this time, two electronic negative pressure gauges on the negative pressure port end are also connected with the PLC controller. .
本发明的有益效果在于:The beneficial effects of the invention are:
本设计通过负压的原理可以对重力轴进行配重支撑,通过此原理可以可避免气体在气缸内腔的聚集,特别是在气缸上的伸缩轴收回时能够解决现有技术中采用正压气缸发生气体聚集、重力轴卡吨的现象,可达到高速高精切削的要求。The design can carry out the weight support of the gravity shaft by the principle of negative pressure. By this principle, the accumulation of gas in the cylinder cavity can be avoided, especially when the telescopic shaft on the cylinder is retracted, the positive pressure cylinder in the prior art can be solved. The phenomenon of gas accumulation and gravity axis card tonnage can meet the requirements of high speed and high precision cutting.
图1为采用气缸配置的原理示意图;Figure 1 is a schematic diagram of the principle of using a cylinder arrangement;
图2为现有气缸易发生气体聚集、堵塞现象的原理说明示意图;2 is a schematic diagram showing the principle of gas accumulation and clogging in the existing cylinder;
图3为本设计的原理结构示意图;Figure 3 is a schematic structural diagram of the present design;
图4为本设计的应用结构示意图;Figure 4 is a schematic diagram of the application structure of the present design;
图5为本设计的原理结构示意图之二;Figure 5 is a schematic diagram of the principle structure of the present design;
图中:1.机床本体;2.重力轴;3.直线电机;4.气缸;5.气缸内腔;6.气缸的排气管;7.气管;8.储能罐;9.第一单向阀;10.负压泵;11.PLC控制器;12、15、16.电子式负压表;13.第二单向阀;14.双通气阀。In the figure: 1. machine body; 2. gravity axis; 3. linear motor; 4. cylinder; 5. cylinder cavity; 6. cylinder exhaust pipe; 7. air pipe; 8. energy storage tank; One-way valve; 10. Negative pressure pump; 11. PLC controller; 12, 15, 16. Electronic negative pressure gauge; 13. Second check valve; 14. Double vent valve.
下面结合附图和实施例对本发明进一步说明:The present invention is further described below in conjunction with the accompanying drawings and embodiments:
实施例1:一种机床负压配重装置,参见图3;它包括机床本体1、设置于机床本体1上的重力轴3,重力轴3通过直线电机与机床本体1连接,所述机床本体上1设有用于支撑重力轴的气缸4,气缸4的本体/伸缩轴与机床本体连接,气缸的伸缩轴/本体与重力轴的顶端连接(以上为现有技术)。Embodiment 1: A machine tool negative pressure counterweight device, see FIG. 3; it comprises a machine tool body 1, a gravity shaft 3 disposed on the machine tool body 1, and a gravity shaft 3 connected to the machine tool body 1 by a linear motor, the machine tool body The upper 1 is provided with a cylinder 4 for supporting a gravity shaft, and the body/telescopic shaft of the cylinder 4 is connected to the machine body, and the telescopic shaft/body of the cylinder is connected to the top end of the gravity shaft (the above is a prior art).
具体的,本设计中的所述气缸4为负压气缸,还包括为所述气缸4提供恒定负压的负压提供源,通过负压提供源对所述气缸提供稳定的负压以通过气缸对所述重力轴配重。Specifically, the cylinder 4 in the present design is a negative pressure cylinder, and further includes a negative pressure supply source that supplies a constant negative pressure to the cylinder 4, and provides a stable negative pressure to the cylinder through the negative pressure supply source to pass through the cylinder. The gravity axis is weighted.
所述的负压提供源包括负压泵、储能罐,所述气缸与所述储能罐连接,所述负压泵亦与所述储能罐连接。The negative pressure supply source includes a negative pressure pump, an energy storage tank, the cylinder is connected to the energy storage tank, and the negative pressure pump is also connected to the energy storage tank.
通过此负压泵、储能罐可为气缸提供一个恒定的负压,通过此负压可以实现气缸上的伸缩轴对气缸进行支撑,尽可能的通过负压将气缸对重力轴向上的拉力与重力轴的重力相等,这样可降低直线电机承重力,同时降低电机的负载,提高电机的灵敏度;再者由于采用负压气缸,其气缸内的气缸内腔中可避免气体在伸缩轴快速收回时发生气体聚集、堵塞的现象,提高重力轴的快速反应能力,可达到高速高精切削的要求。The negative pressure pump and the energy storage tank can provide a constant negative pressure to the cylinder, and the negative pressure can realize the support of the cylinder on the telescopic shaft of the cylinder, and the tension of the cylinder on the gravity axis can be achieved by the negative pressure as much as possible. It is equal to the gravity of the gravity axis, which can reduce the load capacity of the linear motor, reduce the load of the motor and improve the sensitivity of the motor. Moreover, due to the use of the negative pressure cylinder, the cylinder inside the cylinder can avoid the gas quickly recovering from the telescopic shaft. When gas accumulation and clogging occur, the rapid response capability of the gravity axis is improved, and the requirements for high-speed and high-precision cutting can be achieved.
进一步的,本设计在所述储能罐8与所述负压泵10之间的管道上设有一第一单向阀9。通过此第一单向阀9的关闭可以将储能罐内的能力进行留存,这样负压泵停止后通 过储能罐即可对气缸提供稳定的负压,而若储能罐内的负压低于设定值时,其第一单向阀9打开后通过负压泵开启将储能罐内的负压达到要求后再次关闭第一单向阀9即可。Further, in the present design, a first check valve 9 is disposed on the pipeline between the energy storage tank 8 and the negative pressure pump 10. The capacity of the energy storage tank can be retained by the closing of the first one-way valve 9, so that the negative pressure pump can provide a stable negative pressure to the cylinder through the energy storage tank, and if the negative pressure in the energy storage tank When the first check valve 9 is opened, the first check valve 9 is opened, and the negative pressure pump is opened to close the first check valve 9 after the negative pressure in the energy storage tank reaches the requirement.
实施例2,参见图4至图5,与实施例1相同之处不再赘述,不同之处在于:所述的气缸4为两个,此时,两个所述气缸4的负压口通过管路连通后与储能罐8连通。Embodiment 2, referring to FIG. 4 to FIG. 5, the same points as Embodiment 1 are not described again, except that the cylinders 4 are two, and at this time, the negative pressure ports of the two cylinders 4 pass. After the pipeline is connected, it is connected to the energy storage tank 8.
进一步的,两个气缸的负压口之间的管路上设有一双通气阀14,所述储能罐8与邻近的气缸4之间的气管上设有第二单向阀13;本设计中的所述第一单向阀、第二单向阀、双通气阀均为电磁阀,还包括一PLC控制器,所述第一单向阀、第二单向阀、双通气阀均与所述PLC控制器连接;还包括设置于储能罐上的电子式负压表12;所述电子式负压表亦与所述PLC控制器对应连接。Further, a double vent valve 14 is disposed on the pipeline between the negative pressure ports of the two cylinders, and a second one-way valve 13 is disposed on the air pipe between the energy storage tank 8 and the adjacent cylinder 4; The first check valve, the second check valve and the double vent valve are all solenoid valves, and further comprise a PLC controller, wherein the first check valve, the second check valve and the double vent valve are both The PLC controller is connected; and further includes an electronic negative pressure gauge 12 disposed on the energy storage tank; the electronic negative pressure gauge is also connected to the PLC controller.
进一步的,两个所述气缸4的负压气口端上亦分别设有一电子式负压表15、16,此时,位于负压气口端上的两个电子式负压表15、16亦与所述PLC控制器11对应连接。Further, an electronic negative pressure gauge 15 and 16 are respectively disposed on the negative pressure port ends of the two cylinders 4. At this time, the two electronic negative pressure gauges 15 and 16 located at the negative pressure port end are also The PLC controller 11 is correspondingly connected.
上述两个气缸同时工作,两个气缸在工作时第二单向阀、双通气阀均处于关闭状态,其电子式负压表12、15、16实时处于监测状态,若储能罐内的负压低于预设值时通过负压泵进行调节;而若其中一个气缸内的负压低于预设值时,此时,双通气阀打开促使两个气缸内的负压进行自我调节,当双通气阀打开后两个气缸内的负压值在允许误差范围内时,其双通气阀再次关闭;而过双通气阀打开后两个气缸内的负压值不再允许误差范围内时,其第二单向阀打开通过储能罐进行调节,而当两个气缸内的负压值达到预设值时,第二单向阀、双通气阀均再次关闭;上述的负压值的监测通过对应的电子式负压表进行实施监测,而第一单向阀、第二单向阀及双通气阀的关闭与打开通过PLC控制器进行控制,而第一单向阀、第二单向阀及双通气阀、电子式负压表与PLC控制器的连接均为现有技术,再者,PLC控制器对第一单向阀、第二单向阀及双通气阀控制亦为现有技术可实现的,本实施例再次不再对其做过多的赘述。The above two cylinders work at the same time. When the two cylinders are working, the second check valve and the double vent valve are all closed, and the electronic negative pressure gauges 12, 15, 16 are in real-time monitoring state, if the energy storage tank is negative When the pressure is lower than the preset value, the pressure is adjusted by the negative pressure pump; and if the negative pressure in one of the cylinders is lower than the preset value, at this time, the double vent valve is opened to cause the negative pressure in the two cylinders to self-adjust, when When the negative pressure value in the two cylinders is within the allowable error range after the double vent valve is opened, the double vent valve is closed again; and when the negative pressure value in the two cylinders after the double vent valve is opened is no longer allowed within the error range, The second one-way valve is opened and adjusted by the energy storage tank, and when the negative pressure value in the two cylinders reaches a preset value, the second one-way valve and the double vent valve are closed again; the above-mentioned negative pressure value monitoring The monitoring is carried out by the corresponding electronic negative pressure gauge, and the closing and opening of the first check valve, the second check valve and the double vent valve are controlled by the PLC controller, and the first check valve and the second one-way Valve and double vent valve, electronic negative pressure gauge and PLC control The connection is all prior art. Furthermore, the control of the first check valve, the second check valve and the double vent valve by the PLC controller is also achievable in the prior art, and the embodiment does not perform it again. More details.
本发明的实施例公布的是较佳的实施例,但并不局限于此,本领域的普通技术人员,极易根据上述实施例,领会本发明的精神,并做出不同的引申和变化,但只要不脱离本发明的精神,都在本发明的保护范围内。The embodiments of the present invention are disclosed in the preferred embodiments, but are not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes according to the above embodiments. However, it is within the scope of the invention as long as it does not depart from the spirit of the invention.
Claims (7)
- 一种机床负压配重装置,它包括机床本体、设置于机床本体上的重力轴,所述机床本体上设有用于支撑重力轴的气缸,气缸的本体/伸缩轴与机床本体连接,气缸的伸缩轴/本体与重力轴的顶端连接;其特征在于:所述气缸为负压气缸,还包括为所述气缸提供恒定负压的负压提供源,通过负压提供源对所述气缸提供稳定的负压以通过气缸对所述重力轴配重。A machine tool negative pressure weighting device comprises a machine tool body, a gravity shaft disposed on the machine body, the machine body is provided with a cylinder for supporting a gravity shaft, and the cylinder body/telescopic shaft is connected with the machine body, the cylinder The telescopic shaft/body is coupled to the top end of the gravity shaft; the cylinder is a negative pressure cylinder, and further includes a negative pressure supply source for providing a constant negative pressure to the cylinder, and the cylinder is stabilized by a negative pressure supply source The negative pressure is used to weight the gravity shaft through the cylinder.
- 如权利要求1所述的机床负压配重装置,其特征在于:所述负压提供源包括通过气管与气缸对应连接的负压泵。A machine tool negative pressure counterweight according to claim 1, wherein said negative pressure supply source comprises a negative pressure pump connected to the cylinder via a gas pipe.
- 如权利要求2所述的机床负压配重装置,其特征在于:还包括一储能罐,所述气缸与所述储能罐连接,所述负压泵亦与所述储能罐连接。A machine tool negative pressure counterweight according to claim 2, further comprising an energy storage tank, said cylinder being coupled to said energy storage tank, said vacuum pump being also coupled to said energy storage tank.
- 如权利要求3所述的机床负压配重装置,其特征在于:所述储能罐与所述负压泵之间的管道上设有一第一单向阀。The negative pressure weighting device for a machine tool according to claim 3, wherein a first one-way valve is disposed on the pipe between the energy storage tank and the negative pressure pump.
- 如权利要求4所述的机床负压配重装置,其特征在于:所述气缸为两个,此时,两个所述气缸的负压口通过管路连通后与储能罐连通。The machine tool negative pressure counterweight apparatus according to claim 4, wherein the cylinders are two, and at this time, the negative pressure ports of the two cylinders communicate with the energy storage tank through the pipeline.
- 如权利要求5所述的机床负压配重装置,其特征在于:两个气缸的负压口之间的管路上设有一双通气阀,所述储能罐与邻近的气缸之间的气管上设有第二单向阀;A negative pressure weighting device for a machine tool according to claim 5, wherein a line between the negative pressure ports of the two cylinders is provided with a double venting valve, and the gas pipe between the energy storage tank and the adjacent cylinder Providing a second check valve;所述第一单向阀、第二单向阀、双通气阀均为电磁阀,还包括一PLC控制器,所述第一单向阀、第二单向阀、双通气阀均与所述PLC控制器连接;The first check valve, the second check valve, and the double vent valve are all solenoid valves, and further include a PLC controller, wherein the first check valve, the second check valve, and the dual vent valve are all PLC controller connection;还包括设置于储能罐上的电子式负压表;所述电子式负压表亦与所述PLC控制器对应连接。The utility model further comprises an electronic negative pressure gauge disposed on the energy storage tank; the electronic negative pressure gauge is also connected to the PLC controller.
- 如权利要求6所述的机床负压配重装置,其特征在于:两个所述气缸的负压气口端上亦分别设有一电子式负压表,此时,位于负压气口端上的两个电子式负压表亦与所述PLC控制器对应连接。The negative pressure weighting device for a machine tool according to claim 6, wherein an electronic negative pressure gauge is respectively disposed on the negative pressure port ends of the two cylinders, and at this time, two of the negative pressure port ends are disposed. An electronic negative pressure gauge is also connected to the PLC controller.
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07224603A (en) * | 1994-02-08 | 1995-08-22 | Shin Yoneda | Differential opposed balance engine |
CN101482159A (en) * | 2009-01-19 | 2009-07-15 | 湖南大学 | Gravity force balancing apparatus |
CN201353713Y (en) * | 2009-02-03 | 2009-12-02 | 南京肯信精密机器制造有限公司 | Machine tool pneumatic balancing-weight device |
CN202922316U (en) * | 2012-10-30 | 2013-05-08 | 南京嘉翼精密机器制造有限公司 | Two-way pneumatic counterweight device assembly for machine tool |
CN105692198A (en) * | 2016-03-11 | 2016-06-22 | 青岛创想智能技术有限公司 | Clamp control system |
CN107838744A (en) * | 2017-12-05 | 2018-03-27 | 江西佳时特精密机械有限责任公司 | Lathe negative pressure counter weight device |
CN207522207U (en) * | 2017-12-05 | 2018-06-22 | 江西佳时特精密机械有限责任公司 | Lathe negative pressure counter weight device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1457718A (en) * | 1965-09-20 | 1966-01-24 | Crouzet Sa | Oleopneumatic device simultaneously ensuring the balancing and the speed regulation of a heavy machine tool member moved vertically in particular by a pneumatic cylinder |
DE10220617B4 (en) * | 2002-05-08 | 2006-11-16 | P & L Gmbh & Co.Kg | Counterbalancing apparatus |
CN103341780B (en) * | 2013-06-28 | 2016-03-16 | 宁波北仑牧田机械有限公司 | A kind of from supercharging balanced controls and work in-process application in the heart |
CN106312674B (en) * | 2016-10-31 | 2017-12-29 | 福建省正丰数控科技有限公司 | A kind of magnetic suspension machining center Weighting system |
CN107225433A (en) * | 2017-07-19 | 2017-10-03 | 厦门扬森数控设备有限公司 | A kind of vacuum counter weight device |
-
2017
- 2017-12-05 CN CN201711266603.6A patent/CN107838744A/en active Pending
-
2018
- 2018-11-26 WO PCT/CN2018/117370 patent/WO2019109826A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07224603A (en) * | 1994-02-08 | 1995-08-22 | Shin Yoneda | Differential opposed balance engine |
CN101482159A (en) * | 2009-01-19 | 2009-07-15 | 湖南大学 | Gravity force balancing apparatus |
CN201353713Y (en) * | 2009-02-03 | 2009-12-02 | 南京肯信精密机器制造有限公司 | Machine tool pneumatic balancing-weight device |
CN202922316U (en) * | 2012-10-30 | 2013-05-08 | 南京嘉翼精密机器制造有限公司 | Two-way pneumatic counterweight device assembly for machine tool |
CN105692198A (en) * | 2016-03-11 | 2016-06-22 | 青岛创想智能技术有限公司 | Clamp control system |
CN107838744A (en) * | 2017-12-05 | 2018-03-27 | 江西佳时特精密机械有限责任公司 | Lathe negative pressure counter weight device |
CN207522207U (en) * | 2017-12-05 | 2018-06-22 | 江西佳时特精密机械有限责任公司 | Lathe negative pressure counter weight device |
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