KR101051302B1 - Discharge oil recovery device for electric discharge machine - Google Patents

Discharge oil recovery device for electric discharge machine Download PDF

Info

Publication number
KR101051302B1
KR101051302B1 KR1020080118511A KR20080118511A KR101051302B1 KR 101051302 B1 KR101051302 B1 KR 101051302B1 KR 1020080118511 A KR1020080118511 A KR 1020080118511A KR 20080118511 A KR20080118511 A KR 20080118511A KR 101051302 B1 KR101051302 B1 KR 101051302B1
Authority
KR
South Korea
Prior art keywords
discharge
discharge oil
storage unit
rail member
roller
Prior art date
Application number
KR1020080118511A
Other languages
Korean (ko)
Other versions
KR20100060074A (en
Inventor
이광택
Original Assignee
현대제철 주식회사
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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020080118511A priority Critical patent/KR101051302B1/en
Publication of KR20100060074A publication Critical patent/KR20100060074A/en
Application granted granted Critical
Publication of KR101051302B1 publication Critical patent/KR101051302B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/10—Supply or regeneration of working media

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

방전가공기용 방전유 회수장치에 대한 발명이 개시된다. 개시된 방전가공기용 방전유 회수장치는: 방전용 가공대상물의 하측에 위치하며 레일부재가 이격 설치되는 베이스부와, 베이스부의 내측에 장착되어 상기 방전용 가공대상물의 가공에 사용되는 방전유를 회수하는 저장부 및 레일부재를 따라 상기 저장부 상측에 설치되어 상기 저장부로 방전유를 안내하는 경사안내부를 구비하는 것을 특징으로 한다.Disclosed is a discharge oil recovery apparatus for an electric discharge machine. Disclosed is a discharge oil recovery device for an electric discharge machine comprising: a base part disposed below the object to be processed for discharge and spaced apart from the rail member, and mounted inside the base part to recover discharge oil used for processing the object to be processed for discharge; It is characterized in that it is provided on the storage unit along the storage unit and the rail member and provided with an inclined guide unit for guiding discharge oil to the storage unit.

방전유, 베이스부, 저장부, 경사안내부, 경사편 Discharge oil, base part, storage part, inclined guide part, inclined piece

Description

방전가공기용 방전유 회수장치{OIL COLLECTING DEVICE FOR ELECTRIC DISCHARGE MACHINE}Discharge oil recovery device for electric discharge machine {OIL COLLECTING DEVICE FOR ELECTRIC DISCHARGE MACHINE}

본 발명은 방전가공기용 방전유 회수장치에 관한 것으로서, 보다 상세하게는 작업중에 분사되는 방전유가 외측으로 튀기는 것을 방지하여 안전사고를 예방하는 방전가공기용 방전유 회수장치에 관한 것이다.The present invention relates to a discharge oil recovery device for an electric discharge machine, and more particularly, to a discharge oil recovery device for an electric discharge machine for preventing safety accidents by preventing the discharge oil injected during operation to splash outward.

일반적으로, 방전가공기는 전원을 이용하여 가공대상물의 표면에 스파크방전을 발생시켜 가공을 하는 가공장치다.In general, an electric discharge machining machine is a processing apparatus that generates spark discharges on a surface of an object to be processed by using a power source.

방전가공시 가공대상물은 오일의 일종인 방전유에 잠겨 있거나 가공되는 면에 방전유가 분사된다.During discharge processing, the object to be processed is immersed in the discharge oil, which is a kind of oil, or the discharge oil is sprayed on the surface to be processed.

전술한 발명은 본 발명이 속하는 기술분야의 배경기술을 의미하며, 종래 기술을 의미하는 것은 아니다.The foregoing invention refers to the background of the art to which the present invention pertains, and does not mean the prior art.

종래의 방전가공기는 가공대상물에 방전유를 분사하여 작업을 할 때, 방전유를 집유하기 위한 별도의 장치가 없어서 작업장 주변에 방전유가 튀므로 화재나 감전 등의 안전사고가 발생할 수 있다. 따라서, 이를 개선할 필요성이 요청된다.In the conventional electric discharge processing machine, when discharging oil to the object to be processed, there is no separate device for collecting the electric discharge oil, so the electric oil splashes around the workplace, which may cause a safety accident such as a fire or an electric shock. Therefore, there is a need for improvement.

본 발명은 상기와 같은 필요성에 의해 창출된 것으로서, 방전가공시에 사용되는 방전유가 작업공간으로 흘러나와 화재나 감전 등의 안전사고가 발생하는 것을 방지할 수 있는 방전가공기용 방전유 회수장치를 제공하는 데 그 목적이 있다.The present invention has been made by the necessity as described above, and provides a discharge oil recovery apparatus for an electric discharge machine that can prevent the discharge oil used in the electric discharge machining flows into the work space and prevents a safety accident such as a fire or an electric shock. Its purpose is to.

본 발명에 따른 방전가공기용 방전유 회수장치는: 방전용 가공대상물의 하측에 위치하며 레일부재가 이격 설치되는 베이스부와, 베이스부의 내측에 장착되어 방전용 가공대상물의 가공에 사용되는 방전유를 회수하는 저장부 및 레일부재를 따라 저장부 상측에 설치되어 저장부로 방전유를 안내하는 경사안내부를 포함한다.Discharge oil recovery apparatus for an electric discharge machine according to the present invention comprises: a base portion which is located below the discharge processing object and the rail member is spaced apart, and the discharge oil which is mounted inside the base portion and used for processing the discharge processing object. It is provided along the storage unit and the rail member to recover the inclined guide portion is installed on the upper side to guide the discharge oil to the storage unit.

또한 레일부재와 접하는 경사안내부에는 롤러부가 구비되는 것이 바람직하다.In addition, the inclined guide portion in contact with the rail member is preferably provided with a roller portion.

또한 롤러부는, 레일부재의 측면에 접하는 제1롤러부재 및 레일부재의 상측에 접하는 제2롤러부재를 포함하는 것이 바람직하다.In addition, the roller portion preferably includes a first roller member in contact with the side of the rail member and a second roller member in contact with the upper side of the rail member.

또한 저장부는, 방전유가 저장되는 본체부재 및 본체부재에 구비되는 손잡이부재를 포함하는 것이 바람직하다.In addition, the storage unit preferably includes a body member for storing the discharge oil and a handle member provided in the body member.

또한 경사안내부는, 저장부와 연통되는 연결부재와, 연결부재의 상측에 설치되어 이물질을 걸러내는 필터부재 및 필터부재에 구비되어 상기 방전유를 안내하는 경사편을 포함하는 것이 바람직하다.In addition, the inclined guide portion, it is preferable to include a connecting member in communication with the storage unit, the filter member is installed on the upper side of the connecting member to filter foreign matter and the inclined piece is provided in the filter member to guide the discharge oil.

본 발명에 따른 방전가공기용 방전유 회수장치는 방전용 가공대상물에 분사된 방전유가 경사안내부를 거쳐 저장부에 집유되므로 방전유가 작업장 바닥에 튀는 것을 방지하여 안전사고의 위험성을 감소할 수 있다.In the discharge oil recovery apparatus for an electric discharge machine according to the present invention, since the discharge oil injected to the discharge processing object is collected in the storage part via the inclined guide part, the discharge oil may be prevented from splashing on the floor of the workplace, thereby reducing the risk of a safety accident.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 방전가공기용 방전유 회수장치의 일 실시예를 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of a discharge oil recovery apparatus for an electric discharge machine according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

도 1은 본 발명의 일 실시예에 따른 방전가공기용 방전유 회수장치를 분해 도시한 사시도이며, 도 2는 도 1에 도시된 방전가공기용 방전유 회수장치를 결합한 사시도이며, 도 3은 도 2에 도시된 경사안내부의 설치상태를 도시한 측단면도이며, 도 4는 도 3에 도시된 제1롤러부재와 제2롤러부재의 설치상태를 도시한 사시도이 다.1 is an exploded perspective view showing a discharge oil recovery apparatus for an electric discharge machine according to an embodiment of the present invention, FIG. 2 is a perspective view of the discharge oil recovery apparatus for an electric discharge machine shown in FIG. 1, and FIG. Figure 4 is a side cross-sectional view showing the installation state of the inclined guide portion, Figure 4 is a perspective view showing the installation state of the first roller member and the second roller member shown in FIG.

도 1과 도 2에 도시된 바와 같이, 본 발명의 일 실시예에 따른 방전가공기용 방전유 회수장치는, 방전용 가공대상물(1)의 하측에 위치하며 한쌍의 레일부재(12)가 이격 설치되는 베이스부(10)와, 베이스부(10)의 내측에 장착되어 방전용 가공대상물(1)의 가공에 사용되는 방전유(7)를 회수하는 저장부(20) 및 레일부재(12)를 따라 저장부(20) 상측에 설치되어 저장부(20)로 방전유(7)를 안내하는 경사안내부(30)를 포함한다.As shown in Figure 1 and 2, the discharge oil recovery apparatus for an electric discharge machine according to an embodiment of the present invention, is located on the lower side of the discharge object (1) and a pair of rail members 12 are spaced apart The storage unit 20 and the rail member 12 mounted inside the base unit 10 and the base unit 10 to recover the discharge oil 7 used for the processing of the discharge object 1. Accordingly, the inclination guide part 30 is installed above the storage part 20 to guide the discharge oil 7 to the storage part 20.

베이스부(10)를 구성하는 레일부재(12)는 장착홈부(14)를 사이에 두고 이격되어 평행하게 설치된다.Rail member 12 constituting the base portion 10 is installed in parallel with spaced apart with the mounting groove 14 therebetween.

장착홈부(14)에 삽입되는 저장부(20)는, 방전유(7)가 저장되도록 저장홈이 구비되는 본체부재(22) 및 본체부재(22)의 양측에 구비되는 손잡이부재(24)를 포함한다.The storage unit 20 inserted into the mounting groove 14 includes a main body member 22 having a storage groove and a handle member 24 provided at both sides of the main body member 22 so that the discharge oil 7 is stored. Include.

저장부(20)로 방전유(7)를 안내하는 경사안내부(30)는, 저장부(20)와 연통되는 연결부재(36)와, 연결부재(36)의 상측에 설치되어 이물질을 걸러내는 필터부재(34) 및 필터부재(34)의 양측에 구비되어 상기 방전유(7)를 안내하는 경사편(32)을 포함한다.The inclined guide part 30 which guides the discharge oil 7 to the storage part 20 is installed on the connection member 36 which communicates with the storage part 20 and above the connection member 36 to filter out foreign substances. It includes a filter member 34 and the inclined piece 32 provided on both sides of the filter member 34 to guide the discharge oil (7).

필터부재(34)는 방전유(7)에 포함된 이물질을 필터링 하기 위한 기술사상 안에서 다양한 형상과 재질이 적용될 수 있다.Filter member 34 may be applied in a variety of shapes and materials within the technical spirit for filtering foreign matter contained in the discharge oil (7).

도 3과 도 4에 도시된 바와 같이, 레일부재(12)와 접하는 경사안내부(30)의 양측에는 롤러부(40)가 구비된다.As shown in Figure 3 and 4, the roller portion 40 is provided on both sides of the inclined guide portion 30 in contact with the rail member 12.

롤러부(40)는 레일부재(12)의 측면에 접하여 회전되는 제1롤러부재(42) 및 레일부재(12)의 상측에 접하여 회전되는 제2롤러부재(44)를 포함한다.The roller portion 40 includes a first roller member 42 rotated in contact with the side of the rail member 12 and a second roller member 44 rotated in contact with the upper side of the rail member 12.

경사안내부(30)의 상측에는 방전용 가공대상물(1)이 설치되며, 방전용 가공대상물(1)의 일측에는 전극가공부(3)와 방전유(7)를 공급하는 공급호스(5)가 구비된다.On the upper side of the inclined guide portion 30, the discharge object 1 is installed, and on one side of the discharge object 1, a supply hose 5 for supplying the electrode processing portion 3 and the discharge oil 7 is provided. It is provided.

이하에서는 첨부된 도면들을 참조하여 본 발명의 일 실시예에 따른 방전가공기용 방전유 회수장치의 작동상태를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the operating state of the discharge oil recovery apparatus for an electric discharge machine according to an embodiment of the present invention.

장착홈부(14)에 저장부(20)를 설치하고 레일부재(12)를 따라 경사안내부(30)를 설치하여 연결부재(36) 하측에 본체부재(22)가 위치한다.The storage unit 20 is installed in the mounting groove 14, and the body member 22 is positioned below the connection member 36 by installing the inclined guide unit 30 along the rail member 12.

제1롤러부재(42)가 레일부재(12)의 측면에 접하여 회전되며 제2롤러부재(44)가 레일부재(12)의 상측에 접하여 회전되므로 경사안내부(30)는 레일부재(12)를 따라 슬라이딩 이동되어 경사안내부(30)의 설치작업이 용이하게 이루어진다.Since the first roller member 42 is rotated in contact with the side of the rail member 12 and the second roller member 44 is rotated in contact with the upper side of the rail member 12, the inclined guide part 30 is the rail member 12. Sliding is moved along the easy installation of the inclined guide portion 30.

저장부(20)와 경사안내부(30)의 설치가 완료되면, 공급호스(5)를 통해 방전유(7)가 공급되는 동시에 전극가공부(3)에 전원이 공급되어 방전용 가공대상물(1)의 표면을 가공한다.When the installation of the storage unit 20 and the inclined guide unit 30 is completed, the discharge oil 7 is supplied through the supply hose 5 and the power is supplied to the electrode processing unit 3 to discharge the workpiece 1. ) To machine the surface.

방전유(7)는 경사편(32)을 따라 하측으로 흘러 저장부(20)에 저장되며, 방전유(7)에 포함된 이물질을 필터부재(34)에서 여과된다.The discharge oil 7 flows downward along the inclined piece 32 and is stored in the storage unit 20. The foreign matter contained in the discharge oil 7 is filtered by the filter member 34.

그리고, 작업이 종료된 후에는 저장부(20)에 담겨진 방전유(7)를 회수탱크에 부으면서 저장부(20)의 하측에 침전된 이물질은 별도의 회수통에 모은다.After the operation is completed, the foreign matter deposited in the lower side of the storage unit 20 is collected in a separate collecting container while pouring the discharge oil 7 contained in the storage unit 20 into the recovery tank.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적 인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, .

또한, 방전가공기에 구비되는 방전유 회수장치를 예로 들어 설명하였으나, 이는 예시적인 것에 불과하며, 방전가공기가 아닌 다른 기계장치에도 본 발명의 방전유 회수장치가 사용될 수 있다.In addition, the discharge oil recovery device provided in the discharge processing machine has been described as an example, but this is merely illustrative, and the discharge oil recovery device of the present invention may be used in other mechanical devices other than the discharge processing machine.

따라서, 본 발명의 진정한 기술적 보호범위는 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention will be defined by the claims.

도 1은 본 발명의 일 실시예에 따른 방전가공기용 방전유 회수장치를 분해 도시한 사시도이다.1 is an exploded perspective view showing a discharge oil recovery apparatus for an electric discharge machine according to an embodiment of the present invention.

도 2는 도 1에 도시된 방전가공기용 방전유 회수장치를 결합한 사시도이다.2 is a perspective view of the discharge oil recovery apparatus for an electric discharge machine shown in FIG.

도 3은 도 2에 도시된 경사안내부의 설치상태를 도시한 측단면도이다.Figure 3 is a side cross-sectional view showing the installation state of the inclined guide portion shown in FIG.

도 4는 도 3에 도시된 제1롤러부재와 제2롤러부재의 설치상태를 도시한 사시도이다.4 is a perspective view showing an installation state of the first roller member and the second roller member shown in FIG.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1: 방전용 가공대상물 3: 전극가공부1: object to be discharged 3: electrode processing part

5: 공급호스 7: 방전유5: supply hose 7: discharge oil

10: 베이스부 12: 레일부재10: base portion 12: rail member

14: 장착홈부 20: 저장부14: mounting groove 20: storage unit

22: 본체부재 24: 손잡이부재22: body member 24: handle member

30: 경사안내부 32: 경사편30: inclined guide 32: inclined piece

34: 필터부재 40: 롤러부34: filter member 40: roller portion

42: 제1롤러부재 44: 제2롤러부재42: first roller member 44: second roller member

Claims (5)

방전용 가공대상물의 하측에 위치하며 레일부재가 이격 설치되는 베이스부;A base part disposed below the object to be discharged and spaced apart from the rail member; 상기 베이스부의 내측에 장착되어 상기 방전용 가공대상물의 가공에 사용되는 방전유를 회수하는 저장부; 및A storage unit mounted inside the base unit to recover discharge oil used for processing the discharge processing object; And 상기 레일부재를 따라 상기 저장부 상측에 설치되어 상기 저장부로 방전유를 안내하는 경사안내부를 포함하며,It is installed along the rail member on the upper side of the storage unit and includes an inclined guide for guiding discharge oil to the storage unit, 상기 레일부재와 접하는 상기 경사안내부에는 롤러부가 구비되며,The inclined guide portion in contact with the rail member is provided with a roller portion, 상기 롤러부는, 상기 레일부재의 측면에 접하는 제1롤러부재; 및The roller unit, the first roller member in contact with the side of the rail member; And 상기 레일부재의 상측에 접하는 제2롤러부재를 포함하고,A second roller member in contact with the upper side of the rail member, 상기 경사안내부는, 상기 저장부와 연통되는 연결부재;The inclined guide portion, the connecting member in communication with the storage; 상기 연결부재의 상측에 설치되어 이물질을 걸러내는 필터부재; 및A filter member installed at an upper side of the connection member to filter foreign substances; And 상기 필터부재에 구비되어 상기 방전유를 안내하는 경사편을 포함하는 것을 특징으로 하는 방전가공기용 방전유 회수장치.And an inclined piece provided in the filter member to guide the discharge oil. 삭제delete 삭제delete 제 1 항에 있어서, 상기 저장부는,The method of claim 1, wherein the storage unit, 상기 방전유가 저장되는 본체부재; 및A body member in which the discharge oil is stored; And 상기 본체부재에 구비되는 손잡이부재를 포함하는 것을 특징으로 하는 방전가공기용 방전유 회수장치.Discharge oil recovery apparatus for a discharge machining machine comprising a handle member provided in the main body member. 삭제delete
KR1020080118511A 2008-11-27 2008-11-27 Discharge oil recovery device for electric discharge machine KR101051302B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080118511A KR101051302B1 (en) 2008-11-27 2008-11-27 Discharge oil recovery device for electric discharge machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080118511A KR101051302B1 (en) 2008-11-27 2008-11-27 Discharge oil recovery device for electric discharge machine

Publications (2)

Publication Number Publication Date
KR20100060074A KR20100060074A (en) 2010-06-07
KR101051302B1 true KR101051302B1 (en) 2011-07-22

Family

ID=42361032

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080118511A KR101051302B1 (en) 2008-11-27 2008-11-27 Discharge oil recovery device for electric discharge machine

Country Status (1)

Country Link
KR (1) KR101051302B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6517881B2 (en) * 2017-07-04 2019-05-22 ファナック株式会社 Machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870000994A (en) * 1985-07-22 1987-03-10 정몽준 TIG automatic growth welding method of heterogeneous metal on the inside of small diameter pipe
KR900005520Y1 (en) * 1987-08-19 1990-06-20 대우중공업 주식회사 Device for removing scrap
KR20080006380U (en) * 2007-06-15 2008-12-18 신기영 Coolant recycle unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870000994A (en) * 1985-07-22 1987-03-10 정몽준 TIG automatic growth welding method of heterogeneous metal on the inside of small diameter pipe
KR900005520Y1 (en) * 1987-08-19 1990-06-20 대우중공업 주식회사 Device for removing scrap
KR20080006380U (en) * 2007-06-15 2008-12-18 신기영 Coolant recycle unit

Also Published As

Publication number Publication date
KR20100060074A (en) 2010-06-07

Similar Documents

Publication Publication Date Title
US9457445B2 (en) Machine tool with cover adapted for discharge of chips
CN101234473B (en) Machine tool
KR101435726B1 (en) Iron power suction device of working fluid for wirecut electric discharge machine
CN206677697U (en) A kind of quick burr remover of automobile gadget processing
JP2005279924A (en) Washing and filtrating system for an electric discharge machining machine
KR101314257B1 (en) Nozzle cleaning device of torch of a welding robot
KR101051302B1 (en) Discharge oil recovery device for electric discharge machine
JP5892705B2 (en) Machine tool machining fluid tank
JP5056774B2 (en) Work machine
CN115485099A (en) Fine chip processing device for machine tool
JP2011173590A (en) Working machine
CN211028442U (en) Wire cut electric discharge machine
KR19980010948U (en) Pollutant removal device of gas cutting machine
JP3187098U (en) Filtration device
KR102131504B1 (en) Cleansing apparatus for nozzle of laddle using oxyzen and laddle having the same
TWM608617U (en) Oil return structure of oil mist recovery air purifier
CN209334755U (en) A kind of energy conservation drilling machine
CN110170216B (en) Method for treating electric spark oil smoke and floating particles
CN213530810U (en) Drilling equipment with limiting clamping structure for machine tool machining
JP6316704B2 (en) EDM machining fluid supply device
JPH0929548A (en) Machining fluid treating device for electrical discharge machine
CN213889221U (en) Numerical control machine tool capable of recycling metal scraps
KR102566661B1 (en) Jig apparatus for welding
JP2019166609A (en) Fine hole electric discharge machine
CN213105925U (en) Surface grinding machine

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20140630

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20150630

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160701

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20170712

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20180705

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20190701

Year of fee payment: 9