WO2017012229A1 - Hydraulic device for bending machine - Google Patents

Hydraulic device for bending machine Download PDF

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Publication number
WO2017012229A1
WO2017012229A1 PCT/CN2015/094920 CN2015094920W WO2017012229A1 WO 2017012229 A1 WO2017012229 A1 WO 2017012229A1 CN 2015094920 W CN2015094920 W CN 2015094920W WO 2017012229 A1 WO2017012229 A1 WO 2017012229A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending machine
pump
servo
machine body
oil
Prior art date
Application number
PCT/CN2015/094920
Other languages
French (fr)
Chinese (zh)
Inventor
许冬冬
Original Assignee
江苏力威剪折机床有限公司
许冬冬
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏力威剪折机床有限公司, 许冬冬 filed Critical 江苏力威剪折机床有限公司
Publication of WO2017012229A1 publication Critical patent/WO2017012229A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors

Definitions

  • the present invention relates to the field of machining and manufacturing, and in particular to a hydraulic device for a bending machine.
  • An object of the present invention is to provide a hydraulic device for a bending machine which can effectively solve the problems in the prior art.
  • it comprises a bending machine body 1 in which a fuel tank 3 is mounted, and an oil pump is installed in the oil tank 3, and the oil pump is connected to the servo pump 2 through a bidirectional pipe.
  • the servo pump 2 is bidirectionally connected to the hydraulic cylinders 4 on both sides of the bending machine body 1 through a hydraulic pipe, and its control end is connected to the control panel via a control box. Since the above technical solution is adopted, the invention has the following beneficial effects: 1.
  • the embodiment is implemented by the following technical solution, which comprises a bending machine body 1 , a fuel tank 3 is mounted in the bending machine body 1 , and an oil pump is installed in the oil tank 3 , and the oil pump passes through the two-way
  • the pipeline is connected to the servo pump 2, and the servo pump 2 is bidirectionally connected to the hydraulic cylinders 4 on both sides of the bending machine body 1 through a hydraulic pipe, and the control end thereof is connected to the control panel via a control box. Since the above technical solution is adopted, the invention has the following beneficial effects: 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Presses (AREA)

Abstract

A hydraulic device for a bending machine comprises a bending machine body (1). An oil tank (3) is mounted in the bending machine body (1). An oil pump is mounted in the oil tank (3). The oil pump is connected to a servo pump (2) by means of a two-way pipe. By means of a hydraulic pipe, the servo pump (2) is in two-way connection with hydraulic cylinders (4) disposed on two sides of the bending machine body (1). The control end of the servo pump (2) is connected to a control panel by means of a control box. A two-way pump is controlled by means of forward and reverse rotation of a servo motor, so as to change the direction of a liquid flow, a reversing valve is omitted, and resistance loss and pressure leakage loss of the reversing valve are reduced. The hydraulic device reduces no-load power consumption and the starting power, improves the service lives of sealing members, elements, and oil.

Description

一种折弯机的液压装置 技术领域  Hydraulic device for bending machine
[0001] 本发明涉及的是机械加工制造领域， 具体涉及的是一种折弯机的液压装置。  [0001] The present invention relates to the field of machining and manufacturing, and in particular to a hydraulic device for a bending machine.
背景技术  Background technique
[0002] 目前国内外电液伺服同步折弯机的液压控制系统原理都非常相似， 几十年基本 没有改变， 依靠比例伺服阀控制油缸同步， 可称之为阀控同步系统。 由于应用 比例伺服节流调速原理， 能量损耗大， 系统易发热， 因此能量利用率低， 且普 通液压系统在空闲和快下吋也有较大噪音。  [0002] At present, the hydraulic control system principle of electro-hydraulic servo synchronous bending machine at home and abroad is very similar. It has not changed basically for decades. The proportional servo valve is used to control the cylinder synchronization, which can be called valve-controlled synchronization system. Due to the application of the proportional servo throttling speed regulation principle, the energy loss is large, the system is prone to heat, so the energy utilization rate is low, and the ordinary hydraulic system also has a large noise in idle and fast squats.
发明内容  Summary of the invention
[0003] 本发明目的是提供一种折弯机的液压装置， 它能有效地解决背景技术中所存在 的问题。 为了解决背景技术中所存在的问题， 它包含折弯机本体 1， 该折弯机本 体 1内安装有油箱 3， 所述的油箱 3内安装有油泵， 该油泵通过双向管道与伺服泵 2相连， 所述的伺服泵 2通过液压管道与折弯机本体 1两侧的液压缸 4双向连接， 其控制端经过控制盒与控制面板相连。 由于采用了以上技术方案， 本发明具有 以下有益效果： 1.依靠伺服电机正反转控制双向泵使液流换向， 省略了方向阀 换向， 减少了换向阀的阻力损失和压力泄漏损失； 2.当空运转吋通过伺服电机控 制泵的转速， 使其空载功率消耗降至最小； 3.当伺服电机启动吋， 油泵可接近 于无压力无流量启动， 启动功率极小； 4.在工进、 保压阶段， 当系统压力达到 设定压力吋， 伺服泵能够提供足够的压力和流量， 控制盒能够根据机床所需速 度和压力给伺服电机相应的转速和扭矩指令， 因此液压系统不再产生溢流损失 问题； 5.大大的提高了密封件、 元件和油液使用量的使用寿命。  SUMMARY OF THE INVENTION An object of the present invention is to provide a hydraulic device for a bending machine which can effectively solve the problems in the prior art. In order to solve the problems in the prior art, it comprises a bending machine body 1 in which a fuel tank 3 is mounted, and an oil pump is installed in the oil tank 3, and the oil pump is connected to the servo pump 2 through a bidirectional pipe. The servo pump 2 is bidirectionally connected to the hydraulic cylinders 4 on both sides of the bending machine body 1 through a hydraulic pipe, and its control end is connected to the control panel via a control box. Since the above technical solution is adopted, the invention has the following beneficial effects: 1. Reversing the two-way pump by the servo motor to reverse the flow, omitting the directional valve reversing, reducing the resistance loss and pressure leakage loss of the reversing valve 2. When the air is running, the speed of the pump is controlled by the servo motor to minimize the no-load power consumption. 3. When the servo motor is started, the oil pump can be close to no pressure and no flow start, and the starting power is very small; During the work-in and pressure-holding phase, when the system pressure reaches the set pressure, the servo pump can provide sufficient pressure and flow. The control box can give the servo motor the corresponding speed and torque command according to the speed and pressure required by the machine tool. Therefore, the hydraulic system does not The problem of overflow loss is further generated; 5. The service life of seals, components and oil usage is greatly improved.
附图说明  DRAWINGS
[0004] 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施例或 现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的 附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创 造性劳动性的前提下， 还可以根据这些附图获得其他的附图。 图 1是本发明的结 构示意图。 [0004] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings. Figure 1 is a knot of the present invention Schematic diagram.
具体实施方式 detailed description
为了使本发明实现的技术手段、 创作特征、 达成目的与功效易于明白了解， 下 面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完 整地描述。 参看图 1， 本具体实施方式是采用以下技术方案予以实现， 它包含折 弯机本体 1， 该折弯机本体 1内安装有油箱 3， 所述的油箱 3内安装有油泵， 该油 泵通过双向管道与伺服泵 2相连， 所述的伺服泵 2通过液压管道与折弯机本体 1两 侧的液压缸 4双向连接， 其控制端经过控制盒与控制面板相连。 由于采用了以上 技术方案， 本发明具有以下有益效果： 1.依靠伺服电机正反转控制双向泵使液 流换向， 省略了方向阀换向， 减少了换向阀的阻力损失和压力泄漏损失； 2.当空 运转吋通过伺服电机控制泵的转速， 使其空载功率消耗降至最小； 3.当伺服电 机启动吋， 油泵可接近于无压力无流量启动， 启动功率极小； 4.在工进、 保压 阶段， 当系统压力达到设定压力吋， 伺服泵能够提供足够的压力和流量， 控制 盒能够根据机床所需速度和压力给伺服电机相应的转速和扭矩指令， 因此液压 系统不再产生溢流损失问题； 5.大大的提高了密封件、 元件和油液使用量的使 用寿命。 最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通技术 人员应当理解， 其依然可以对前述各实施例所记载的技术方案进行修改， 或者 对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不使相应技术方 案的本质脱离本发明各实施例技术方案的精神和范围。  The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. Referring to FIG. 1 , the embodiment is implemented by the following technical solution, which comprises a bending machine body 1 , a fuel tank 3 is mounted in the bending machine body 1 , and an oil pump is installed in the oil tank 3 , and the oil pump passes through the two-way The pipeline is connected to the servo pump 2, and the servo pump 2 is bidirectionally connected to the hydraulic cylinders 4 on both sides of the bending machine body 1 through a hydraulic pipe, and the control end thereof is connected to the control panel via a control box. Since the above technical solution is adopted, the invention has the following beneficial effects: 1. Reversing the two-way pump by the servo motor to reverse the flow, omitting the directional valve reversing, reducing the resistance loss and pressure leakage loss of the reversing valve 2. When the air is running, the speed of the pump is controlled by the servo motor to minimize the no-load power consumption. 3. When the servo motor is started, the oil pump can be close to no pressure and no flow start, and the starting power is very small; During the work-in and pressure-holding phase, when the system pressure reaches the set pressure, the servo pump can provide sufficient pressure and flow. The control box can give the servo motor the corresponding speed and torque command according to the speed and pressure required by the machine tool. Therefore, the hydraulic system does not The problem of overflow loss is further generated; 5. The service life of seals, components and oil usage is greatly improved. Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

权利要求书 Claim
[权利要求 1] 一种折弯机的液压装置， 其特征在于它包含折弯机本体 (1)， 该折弯 机本体 (1)内安装有油箱 (3)， 所述的油箱 (3)内安装有油泵， 该油泵通 过双向管道与伺服泵 (2)相连， 所述的伺服泵 (2)通过液压管道与折弯 机本体 (1)两侧的液压缸 (4)双向连接， 其控制端经过控制盒与控制面 板相连。  [Claim 1] A hydraulic device for a bending machine, characterized in that it comprises a bending machine body (1), a fuel tank (3) is mounted in the bending machine body (1), and the oil tank (3) An oil pump is installed inside, and the oil pump is connected to the servo pump (2) through a bidirectional pipe, and the servo pump (2) is bidirectionally connected to the hydraulic cylinders (4) on both sides of the bending machine body (1) through a hydraulic pipe, and the control thereof is controlled. The end is connected to the control panel via a control box.
PCT/CN2015/094920 2015-07-20 2015-11-18 Hydraulic device for bending machine WO2017012229A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510425577.1 2015-07-20
CN201510425577.1A CN105065349A (en) 2015-07-20 2015-07-20 Hydraulic device of bending machine

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WO2017012229A1 true WO2017012229A1 (en) 2017-01-26

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WO (1) WO2017012229A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431035A (en) * 1993-03-10 1995-07-11 Sheen; Reen Y. Hydraulic pipe bender of large dimension
CN1334758A (en) * 1999-05-11 2002-02-06 迪萨工业有限公司 Method of controlling movements of squeeze plates of string moulding apparatus and string moulding apparatus
CN102183918A (en) * 2011-03-11 2011-09-14 无锡锡锻机床有限公司 Control system for servo numerical control bending machine
WO2013112109A1 (en) * 2012-01-23 2013-08-01 Demi̇rer Teknoloji̇k Si̇stemler Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ Energy efficient hydrostatic transmission circuit for an asymmetric actuator utilizing a single 4 - quadrant pump
CN103264521A (en) * 2013-05-22 2013-08-28 东北大学 Integrated type energy-saving and environment-friendly hydraulic servo system
CN104011400A (en) * 2012-01-11 2014-08-27 日立建机株式会社 Hydraulic closed circuit drive device
CN204412838U (en) * 2014-12-31 2015-06-24 山东力丰重型机床有限公司 A kind of combined electrical liquid synchronous digital control bending machine
CN204851811U (en) * 2015-07-20 2015-12-09 江苏力威剪折机床有限公司 Hydraulic means of bender

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4772984B2 (en) * 2001-05-23 2011-09-14 株式会社オプトン Bending material supply device
KR100512272B1 (en) * 2004-01-30 2005-09-02 주식회사 일우산업기계 Stroke control device of hydraulic press brake machine
CN203184371U (en) * 2013-01-25 2013-09-11 马鞍山市中亚机床制造有限公司 Improved control panel for bending machine
CN203184373U (en) * 2013-02-22 2013-09-11 上海埃锡尔数控机床有限公司 Shaft-controlled electrical-hydraulic combination driving plate bending machine
CN103170531A (en) * 2013-03-21 2013-06-26 安徽中德机床股份有限公司 Electro-hydraulic synchronization numerically controlled bending machine servo pump driving device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431035A (en) * 1993-03-10 1995-07-11 Sheen; Reen Y. Hydraulic pipe bender of large dimension
CN1334758A (en) * 1999-05-11 2002-02-06 迪萨工业有限公司 Method of controlling movements of squeeze plates of string moulding apparatus and string moulding apparatus
CN102183918A (en) * 2011-03-11 2011-09-14 无锡锡锻机床有限公司 Control system for servo numerical control bending machine
CN104011400A (en) * 2012-01-11 2014-08-27 日立建机株式会社 Hydraulic closed circuit drive device
WO2013112109A1 (en) * 2012-01-23 2013-08-01 Demi̇rer Teknoloji̇k Si̇stemler Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ Energy efficient hydrostatic transmission circuit for an asymmetric actuator utilizing a single 4 - quadrant pump
CN103264521A (en) * 2013-05-22 2013-08-28 东北大学 Integrated type energy-saving and environment-friendly hydraulic servo system
CN204412838U (en) * 2014-12-31 2015-06-24 山东力丰重型机床有限公司 A kind of combined electrical liquid synchronous digital control bending machine
CN204851811U (en) * 2015-07-20 2015-12-09 江苏力威剪折机床有限公司 Hydraulic means of bender

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