KR200452975Y1 - Master spindle of tapping machine with tools breakage sensing device - Google Patents

Master spindle of tapping machine with tools breakage sensing device Download PDF

Info

Publication number
KR200452975Y1
KR200452975Y1 KR2020080007660U KR20080007660U KR200452975Y1 KR 200452975 Y1 KR200452975 Y1 KR 200452975Y1 KR 2020080007660 U KR2020080007660 U KR 2020080007660U KR 20080007660 U KR20080007660 U KR 20080007660U KR 200452975 Y1 KR200452975 Y1 KR 200452975Y1
Authority
KR
South Korea
Prior art keywords
tool
housing
tapping machine
master spindle
master
Prior art date
Application number
KR2020080007660U
Other languages
Korean (ko)
Other versions
KR20090012710U (en
Inventor
최광배
Original Assignee
주식회사 진영엠에스씨
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 주식회사 진영엠에스씨 filed Critical 주식회사 진영엠에스씨
Priority to KR2020080007660U priority Critical patent/KR200452975Y1/en
Publication of KR20090012710U publication Critical patent/KR20090012710U/en
Application granted granted Critical
Publication of KR200452975Y1 publication Critical patent/KR200452975Y1/en

Links

Images

Classifications

    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
    • B23Q17/0957—Detection of tool breakage
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4065—Monitoring tool breakage, life or condition
    • 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
    • B23Q2717/00—Arrangements for indicating or measuring

Abstract

본 고안은 탭핑머신의 마스터스핀들에 관한 것으로, 더욱 상세하게는 탭핑머신에 장착한 공구(T) 및 공작물(B)에 각각 전극(E1)(E2)을 인가하여 탭핑 가공시 양 전극(E1)(E2)이 전기적으로 연결되는가의 여부에 따라 공구(T)의 파손 유무를 감지하도록 한 공구파손 감지장치를 탭핑머신에 구비함에 있어서, 상기 전극(E1)은 나사축(10)과 하우징(20)으로 구성된 마스터스핀들(1)에 인가하여 공구(T)로 전류가 전달되도록 하되, 상기 나사축(10)이 작동 가능토록 삽입되는 하우징(20)의 내주면을 제외한 하우징(20)의 나머지 부분에 절연피복(25)을 형성함과 아울러 하우징(20)의 하단 외주면에 상기 절연피복을 일부 삭피(削皮)한 단자(27)를 형성하여 상기 단자(27)에 상기 전극(E1)을 인가함으로써, 탭핑머신의 본체에 대하여 마스터스핀들(1)을 간단하고 편리하게 절연할 수 있을 뿐만 아니라, 특히 탭핑 가공시 발생하는 칩(C)의 쇼트(short circuit)로 인한 공구파손감지의 오류를 예방할 수 있는, 공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들에 관한 것이다.The present invention relates to the master spindles of the tapping machine, and more particularly, the electrodes (E1) and (E2) are applied to the tool (T) and the workpiece (B) mounted on the tapping machine, respectively, during the tapping process. In the tapping machine equipped with a tool breakage detection device for detecting the damage of the tool (T) according to whether or not (E2) is electrically connected, the electrode (E1) is the screw shaft 10 and the housing 20 Applied to the master spindle (1) consisting of a) so that current is transmitted to the tool (T), except for the remaining portion of the housing 20, except for the inner circumferential surface of the housing 20 is inserted so that the screw shaft 10 is operable By forming the insulating coating 25 and forming a terminal 27 having a part of the insulating coating on the outer peripheral surface of the lower end of the housing 20 to apply the electrode E1 to the terminal 27. Insulate the master spindle 1 from the main body of the tapping machine simply and conveniently. Be, but also relates in particular to the tap of a master spindle short (short circuit) a tapping machine having a tool that can prevent error detection of the failure, broken tool detection device caused by the chips (C) that occur during processing.

탭, 탭핑머신, 공구파손, 마스터스핀들, 절연피복, 절연코팅, 절연도장 Tap, tapping machine, tool breakage, master spindle, insulation coating, insulation coating, insulation coating

Description

공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들{MASTER SPINDLE OF TAPPING MACHINE WITH TOOLS BREAKAGE SENSING DEVICE}Master spindle of tapping machine with tool breakage detection device {MASTER SPINDLE OF TAPPING MACHINE WITH TOOLS BREAKAGE SENSING DEVICE}

본 고안은 탭핑머신의 마스터스핀들에 관한 것으로, 특히 탭핑머신에 장착한 공구와 공작물에 각각 전극을 인가하여 탭핑 가공시 양 전극 사이의 전기적인 연결 유무에 따라 공구의 파손 여부를 감지하도록 함에 있어서, 공구가 장착되는 마스터스핀들을 구성하는 하우징에 전극을 인가함으로써 상기 공구에 전극이 인가되도록 하되, 상기 하우징을 절연 피복 처리하여 공구에 인가되는 전극이 탭핑머신의 본체에 대하여 절연되도록 한 것을 특징으로 하는, 공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들에 관한 것이다.The present invention relates to the master spindles of the tapping machine, and in particular, to apply an electrode to each of the tool and the workpiece mounted on the tapping machine to detect the breakage of the tool according to the presence or absence of electrical connection between the two electrodes during the tapping process, The electrode is applied to the tool by applying an electrode to the housing constituting the master spindle to which the tool is mounted, the insulating coating treatment of the housing so that the electrode applied to the tool is insulated from the main body of the tapping machine And a master spindle of a tapping machine having a tool breakage detection device.

일반적으로 탭핑머신은 동력전달수단으로부터 회전력을 전달받는 마스터스핀들에 탭(tap)을 장착하여 상기 마스터스핀들의 피치(pitch)와 동일한 피치로 공작물에 암나사를 형성할 수 있도록 한 것으로, 상기와 같은 일반적인 탭핑머신을 포함하여 마스터스핀들에 장착되는 공구의 파손 여부를 신속하게 파악할 수 있도록 한 공작기계의 공구파손 감지방법 및 감지장치가 등록특허공보 제10-0739881 호(2007.07.16. 공고)로 제안된바, 상기 공구파손 감지장치의 구성을 탭핑머신을 각 예로 하여 하기에서 도 1 및 도 2를 참고로 상세히 살펴본다.In general, the tapping machine is a tab (tap) to the master spindle receives the rotational force from the power transmission means to form a female thread on the workpiece at the same pitch as the pitch (pitch) of the master spindle, as described above A tool breakage detection method and detection device of a machine tool, including a tapping machine, to quickly determine whether a tool mounted on a master spindle is broken is proposed in Korean Patent Publication No. 10-0739881 (August 16, 2007). The configuration of the tool breakage detection device will be described in detail with reference to FIGS. 1 and 2 below with a tapping machine as an example.

종래에 제안된 공구파손 감지장치는, 탭핑머신에 장착되는 공구(T)와 공작물(B)에 각각 전극(E1)(E2)을 인가하고, 탭핑 가공시 상기 전극(E1)(E2)이 전기적으로 연결되는가의 여부에 따라 공구(T)의 파손을 감지하도록 한 것으로, 공구(T)에 인가되어야 할 전극(E1)은 상기 공구(T)가 장착되는 마스터스핀들(100)에 인가함으로써 가능하고, 공작물(B)에 인가되는 다른 전극(E2)은 공작물(B)을 고정하는 고정지그(500)에 전극(E2)을 인가하거나 또는 공작물(B)에 직접 전극(E2)을 인가함으로써 가능하다.In the conventional tool breakage detection device, the electrodes E1 and E2 are applied to the tool T and the workpiece B mounted on the tapping machine, and the electrodes E1 and E2 are electrically It is to detect the breakage of the tool (T) depending on whether or not connected to, the electrode (E1) to be applied to the tool (T) is possible by applying to the master spindle (100) on which the tool (T) is mounted. The other electrode E2 applied to the work B can be applied by applying the electrode E2 to the fixing jig 500 for fixing the work B or directly applying the electrode E2 to the work B. .

상기에 있어 공구(T)가 장착되는 마스터스핀들(100)에 전극(E1)을 인가하는 구성을 더욱 상세히 살펴보면, 마스터스핀들(100)은 나사축(110)과 하우징(120)으로 구성되는데, 상기 나사축(110)의 일측단에 어뎁터(111)를 형성하여 공구(T)를 장착함과 아울러 상기 나사축(110)이 작동 가능토록 삽입되는 하우징(120)에 전극(E1)을 인가함으로써, 마스터스핀들(100)의 하우징(120)으로 인가된 전극(E1)의 전류가 나사축(110) 및 어뎁터(111)를 통하여 공구(T)로 전달된다.Looking at the configuration in which the electrode (E1) is applied to the master spindle 100 is mounted in the tool (T) in more detail, the master spindle 100 is composed of a screw shaft 110 and the housing 120, By forming an adapter 111 at one end of the screw shaft 110 to mount the tool T and applying the electrode E1 to the housing 120 into which the screw shaft 110 is operable, The current of the electrode E1 applied to the housing 120 of the master spindle 100 is transmitted to the tool T through the screw shaft 110 and the adapter 111.

한편, 마스터스핀들(100)의 하우징(120)에 인가된 전극(E1)에서 공급되는 전류는 공구(T)에만 전달되고 탭핑머신의 본체에는 전달되지 않아야 하는바, 동력전 달수단(미도시)으로부터 회전력을 전달받는 나사축(110)은 절연조인트(112)로써 동력전달수단과 연결하고, 하우징(120)의 경우에는 도 1에 도시된 바와 같이 하우징(120)이 설치되는 고정플레이트(301) 전체를 절연체로 형성하거나, 도 2에 도시된 바와 같이 절연체로 된 별도의 절연블록(350)을 이용하여 하우징(120)을 고정플레이트(302)에 설치함으로써, 마스터스핀들(100)의 하우징(120)에 인가된 전극(E1)이 탭핑머신의 본체에 대하여 절연되도록 한다.On the other hand, the current supplied from the electrode (E1) applied to the housing 120 of the master spindle 100 is to be transmitted only to the tool (T) and not to the main body of the tapping machine, power transmission means (not shown) Screw shaft 110 receives a rotational force from the connection to the power transmission means as an insulating joint 112, in the case of the housing 120, the fixing plate 301 is installed housing 120 as shown in FIG. 2, the housing 120 of the master spindle 100 by installing the housing 120 to the fixed plate 302 using a separate insulating block 350 made of an insulator as shown in FIG. The electrode E1 applied to) is insulated from the main body of the tapping machine.

따라서, 상기와 같은 종래 공구파손 감지장치를 구비한 탭핑머신에 의하면, 정상적인 탭핑 가공의 경우에는 공구(T)와 공작물(B)에 각각 인가한 전극(E1)(E2)이 전기적으로 연결될 것이고, 반대로 탭핑 가공시 상기 전극(E1)(E2)이 전기적으로 연결되지 않을 경우에는 공구(T)가 파손된 것으로 간주하여 작업자에게 이를 경고함으로써, 공구(T)의 파손을 인식하지 못함으로 인한 대량불량 사태를 예방할 수 있다.Therefore, according to the tapping machine provided with the conventional tool breakage detection device as described above, in the case of normal tapping, the electrodes E1 and E2 applied to the tool T and the work B will be electrically connected to each other. On the contrary, if the electrodes E1 and E2 are not electrically connected during the tapping process, the tool T is regarded as damaged and a warning is given to the worker, thereby causing a large amount of defect due to the failure to recognize the damage of the tool T. The situation can be prevented.

그러나, 상기 도 1의 경우에 있어 마스터스핀들(100)의 하우징(120)이 고정설치되는 고정플레이트(301) 전체를 합성수지와 같은 절연체로 형성할 경우, 금속성 고정플레이트에 비하여 진동 및 처짐에 취약하여 탭핑 가공의 정밀도가 저하되는 문제점이 있고, 도 2의 도시와 같이 별도의 절연블록(350)을 이용하는 경우에는 그 구성 및 설치가 간편하지 못할 뿐만 아니라, 고정플레이트(302)와 절연블록(350) 사이의 공차 및 절연블록(350)과 하우징(120) 사이의 공차가 누적되어 정 밀도가 저하될 수 있으며, 특히, 탭핑 가공시 발생한 칩(C)이 고정플레이트(302)의 상측에 쌓여 하우징(120)과 고정플레이트(302) 사이가 상기 칩(C)의 쇼트(short circuit)로 인하여 전기적으로 연결됨에 따라 공구(T)의 파손 여부를 감지하지 못하는 문제점이 있다.However, in the case of FIG. 1, when the entire fixing plate 301 on which the housing 120 of the master spindle 100 is fixed is formed of an insulator such as a synthetic resin, it is more susceptible to vibration and sagging than the metal fixing plate. There is a problem in that the precision of the tapping process is deteriorated, and when a separate insulating block 350 is used as shown in FIG. 2, the configuration and installation thereof are not easy, and the fixing plate 302 and the insulating block 350 are not. Tolerance between and the tolerance between the insulating block 350 and the housing 120 may accumulate and the precision may be lowered. In particular, the chip (C) generated during the tapping process is stacked on the upper side of the fixing plate 302 and the housing ( As the electrical connection between 120 and the fixed plate 302 is caused by a short circuit of the chip C, there is a problem in that it is not possible to detect whether the tool T is broken.

또한, 기존에 설비된 탭핑머신에 공구파손 감지장치를 적용함에 있어서는, 두 경우 모두 기설치된 탭핑머신의 고정플레이트를 교체하여야 하므로, 그 설비가 용이하지 못하였다.In addition, in applying the tool breakage detection device to the existing tapping machine, in both cases it was necessary to replace the fixed plate of the pre-installed tapping machine, the installation was not easy.

본 고안은 상기와 같은 종래 고안의 문제점을 해결하기 위한 것으로, 탭핑머신에 장착한 공구 및 공작물에 각각 전극이 인가되도록 하여, 탭핑 가공시 양 전극 사이의 전기적인 연결 유무에 따라 공구의 파손 여부를 감지하도록 한 공구파손 감지장치를 탭핑머신에 구비함에 있어서, 공구가 장착되는 마스터스핀들을 구성하는 하우징 자체에 절연수단을 형성함으로써, 하우징의 절연을 위한 고정플레이트의 구조변경 및 그에 따른 정밀도의 저하가 없고, 탭핑머신의 본체에 대한 절연을 용이하게 할 수 있으며, 특히, 공구의 파손 여부를 감지함에 있어 칩의 쇼트(short circuit)로 인한 오류가 발생하지 않도록 하는 데 본 고안의 목적이 있다.The present invention is to solve the problems of the conventional design as described above, so that the electrode is applied to each of the tool and the workpiece mounted on the tapping machine, whether or not the damage of the tool in accordance with the presence or absence of electrical connection between the electrodes in the tapping process In the tapping machine equipped with a tool breakage detection device for sensing, by forming an insulating means in the housing itself constituting the master spindle to which the tool is mounted, it is possible to change the structure of the fixing plate for the insulation of the housing, and thereby to reduce the accuracy It is possible to facilitate the insulation of the main body of the tapping machine, and in particular, the purpose of the present invention is to prevent an error due to a short circuit of a chip in detecting whether a tool is broken.

상기한 바와 같은 목적을 달성하기 위한 본 고안에 따른 공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들은, 공구를 장착한 나사축을 고정플레이트에 설치한 하우징에 작동 가능토록 삽입한 통상의 마스터스핀들을 구비하되, 탭핑머신의 본체에 대해 절연된 상태를 유지하면서 마스터스핀들의 하우징 및 공작물에 각각 전극을 인가하여, 탭핑 가공시 상기 전극이 전기적으로 연결되는가의 여부에 따라 공구의 파손을 감지하도록 한 탭핑머신에 있어서, 상기 나사축이 작동가능토록 삽입되는 하우징의 내주면을 제외한 하우징의 나머지 부분에 절연피복을 형성하되, 고정플레이트의 하부로 돌출되는 하우징의 하단 외주면에 절연피복을 일부 삭피한 단자를 형성하여 상기 단자에 상기 전극을 인가함으로써, 마스터스핀들의 하우징이 탭핑머신의 본체에 대하여 절연되도록 한 것을 특징으로 한다.Master spindles of the tapping machine with a tool breakage detection device according to the present invention for achieving the object as described above, the conventional master spindles inserted to be operable in a housing in which a screw shaft with a tool is mounted on a fixed plate Tapping to provide an electrode to the housing and the workpiece of the master spindle while maintaining an insulated state with respect to the main body of the tapping machine, to detect the breakage of the tool depending on whether the electrode is electrically connected during the tapping process In the machine, the insulation coating is formed on the remaining portion of the housing except the inner circumferential surface of the housing into which the screw shaft is operable, and the terminal is formed by partially removing the insulation coating on the lower outer circumferential surface of the housing projecting to the bottom of the fixing plate. By applying the electrode to the terminal, the housing of the master spindles It is characterized by being insulated with respect to the main body.

상기한 바와 같이 구성한 본 발명에 의하면, 탭핑머신에 공구파손 감지장치를 설비함에 있어서, 탭핑머신에 설치된 기존 고정플레이트의 구조변경 없이 마스터스핀들의 하우징에 절연피복을 형성하여 하우징 자체가 절연되도록 함으로써, 하우징의 절연을 위한 고정플레이트의 구조변경 및 그로 인한 정밀도의 저하가 없고, 탭핑머신의 본체에 대하여 마스터스핀들을 간단 편리하게 절연할 수 있으며, 특히, 탭핑 가공시 발생하는 칩(C)의 쇼트(short circuit)로 인한 공구파손감지의 오류를 예방할 수 있다.According to the present invention configured as described above, in installing the tool breakage detection device in the tapping machine, by forming an insulating coating on the housing of the master spindle without changing the structure of the existing fixed plate installed on the tapping machine to insulate the housing itself, There is no structural change of the fixing plate for the insulation of the housing, and there is no deterioration in accuracy, and the master spindles can be easily and conveniently insulated from the main body of the tapping machine, and in particular, the short of the chip C generated during tapping processing ( It is possible to prevent the error of tool damage detection due to short circuit.

이하 본 고안의 바람직한 실시예에 따른 공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들의 구성을 도 3 내지 도 6을 참고하여 상세히 살펴본다.Hereinafter, the configuration of the master spins of the tapping machine having the tool breakage detecting apparatus according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 3 to 6.

본 고안에 따른 탭핑머신의 마스터스핀들(1)은, 탭핑머신에 장착한 공구(T)와 공작물(B)에 각각 전극(E1)(E2)을 인가하되 탭핑 가공시 상기 전극(E1)(E2)의 전기적인 연결 유무에 따라 공구(T)의 파손 여부를 감지하도록 한 공구파손 감지장치를 탭핑머신에 구비함에 있어서, 나사축(10)과 하우징(20)으로 구성된 마스터스 핀들(1)의 하우징(20)에 상기 전극(E1)을 인가하여 상기 나사축(10)의 일측단에 장착되는 공구(T)에 전류가 공급되도록 하고, 공작물(B)에 인가되는 다른 전극(E2)은 공작물(B)을 고정하는 고정지그(5)에 전극(E2)을 인가하거나 또는 공작물(B)에 직접 전극을 인가한다.The master spindles 1 of the tapping machine according to the present invention apply the electrodes E1 and E2 to the tool T and the workpiece B mounted on the tapping machine, respectively. In the tapping machine equipped with a tool breakage detection device to detect the damage of the tool (T) according to the presence or absence of electrical connection, the housing of the master pins (1) consisting of the screw shaft (10) and the housing (20) Applying the electrode (E1) to the (20) so that the current is supplied to the tool (T) mounted on one side end of the screw shaft 10, the other electrode (E2) applied to the workpiece (B) is a workpiece ( The electrode E2 is applied to the fixing jig 5 for fixing B) or the electrode is directly applied to the work B.

상기에 있어 마스터스핀들(1)의 하우징(20)에 전극(E1)을 인가하는 구성을 더욱 상세히 살펴보면, 탭핑머신의 고정플레이트(3)에 고정 설치되는 하우징(20)에는 일측단에 어뎁터(11)를 형성하여 공구(T)를 장착할 수 있도록 한 나사축(10)을 작동 가능토록 삽입하는바, 상기 하우징(20)에 있어 나사축(10)이 삽입되는 하우징(20)의 내주면을 제외한 다른 모든 부분에 절연피복(25)을 형성하되, 고정플레이트(3)의 하측으로 돌출되는 하우징(20)의 하단에는 절연피복(25)을 일부 삭피(削皮)한 단자(27)를 형성하여 상기 단자(27)에 전극(E1)을 인가한다.Looking at the configuration in which the electrode (E1) is applied to the housing 20 of the master spindle 1 in more detail, in the housing 20 fixed to the fixing plate 3 of the tapping machine adapter 11 at one end ) To insert the screw shaft 10 to be able to mount the tool (T) to operate, except for the inner peripheral surface of the housing 20 into which the screw shaft 10 is inserted in the housing 20. Insulating coating 25 is formed in all other parts, but at the lower end of the housing 20 protruding downward of the fixing plate 3, a terminal 27 having some insulation coating 25 formed thereon is formed. The electrode E1 is applied to the terminal 27.

따라서, 상기에 의하면 마스터스핀들(1)의 하우징(20)에 인가된 전극(E1)의 전류는 나사축(10)의 통하여 공구(T)로 전달되고, 탭핑머신의 본체에 대해서는 상기 하우징(20)으로 공급된 전류가 절연피복(25)에 의하여 고정플레이트(3)에 전달되지 않으므로 절연된다.Therefore, according to the above, the electric current of the electrode E1 applied to the housing 20 of the master spindle 1 is transmitted to the tool T through the screw shaft 10, and the housing 20 for the main body of the tapping machine. Since the current supplied to () is not transmitted to the fixed plate (3) by the insulating coating 25 is insulated.

그리고 상기 마스터스핀들(1)의 나사축(10)은 절연조인트(12)로써 탭핑머신의 동력전달수단(미도시)에 연결함으로써, 나사축(10)의 일측 어뎁터(11)에 장착한 공구(T)에 회전력을 전달할 수 있음과 아울러 마스터스핀들(1)의 하우징(20)을 통하여 나사축(10)으로 공급되는 전류가 동력전달장치(미도시)를 포함한 탭핑머신에 대하여 차단된다.And the screw shaft 10 of the master spindle 1 is connected to the power transmission means (not shown) of the tapping machine by the insulating joint 12, the tool mounted on one adapter 11 of the screw shaft 10 ( In addition to transmitting the rotational force to T), the current supplied to the screw shaft 10 through the housing 20 of the master spindle 1 is cut off against the tapping machine including a power transmission device (not shown).

한편, 상기 하우징(20)에 형성한 절연피복(25)은 0.1~1mm의 두께로 형성함이 바람직하고, 테프론 또는 에나멜 등과 같은 절연성 수지로 코팅처리를 하거나, 또는 통상의 휘발성ㆍ유성ㆍ아스팔트계ㆍ합성수계의 절연도료로써 도장(塗裝)을 하여 절연피복(25)을 형성할 수 있다.On the other hand, the insulating coating 25 formed on the housing 20 is preferably formed to a thickness of 0.1 ~ 1mm, and is coated with an insulating resin such as Teflon or enamel, or a conventional volatile, oily, asphalt based ㆍ Insulation coating 25 can be formed by painting with synthetic water-based insulating paint.

상기와 같이 구성한 본 고안의 작용을 살펴보면, 공구(T) 및 공작물(B)에 각각 인가한 전극(E1)(E2)이 탭핑 가공시 전기적으로 연결되는가의 유무에 따라 공구(T)의 파손을 감지하도록 함에 있어, 마스터스핀들(1)의 하우징(20)에 형성한 단자(27)로 공급되는 전류는 하우징(20)의 내주면과 접하는 나사축(10)을 통하여 어뎁터(11)에 장착된 공구(T)로 공급되고, 이때 상기 하우징(20)의 내주면 및 단자(27) 부분을 제외한 나머지 모든 부분은 절연피복(25)에 의하여 절연됨에 따라, 상기 하우징(20)의 절연을 위하여 고정플레이트(3)의 구조를 변경하거나 별도의 절연성 부품을 필요로 하지 않는다.Looking at the operation of the present invention configured as described above, depending on whether or not the electrode (E1) (E2) applied to the tool (T) and the work (B), respectively, is electrically connected during tapping processing, In the sensing, the current supplied to the terminal 27 formed in the housing 20 of the master spindle 1 is a tool mounted on the adapter 11 through the screw shaft 10 in contact with the inner circumferential surface of the housing 20. (T) is supplied, wherein all parts except the inner circumferential surface and the terminal 27 of the housing 20 are insulated by the insulating coating 25, the fixing plate for the insulation of the housing 20 ( Do not change the structure of 3) or need separate insulating parts.

특히, 암나사가 형성된 하우징(20)의 내주면은 나사축(10)이 삽입되어 외부로 노출되지 않음과 아울러 하우징(20)의 하단에 형성한 단자(27)는 고정플레이 트(3)의 하부로 노출됨에 따라, 고정플레이트(3) 상측에서 이루어지는 탭핑 가공에 대하여 하우징(20)이 완전히 절연됨으로써, 탭핑 가공시 공작물(B)로부터 발생한 칩(C)에 의하여 하우징(20)과 고정플레이트(3)가 전기적으로 연결되는 것으로 인한 공구파손감지의 오류를 예방할 수 있다.In particular, the inner circumferential surface of the housing 20 in which the female thread is formed is not exposed to the outside by inserting the screw shaft 10, and the terminal 27 formed at the lower end of the housing 20 is lowered to the fixing plate 3. As it is exposed, the housing 20 is completely insulated from the tapping process performed on the upper side of the fixed plate 3, whereby the housing 20 and the fixed plate 3 are formed by the chip C generated from the work B during the tapping process. The error of tool breakage detection due to the electrical connection of the controller can be prevented.

도 1 및 도 2는 종래 공구파손 감지장치를 구비한 탭핑머신의 사용상태도1 and 2 is a state of use of the tapping machine equipped with a conventional tool damage detection device

도 3은 본 고안에 따른 탭핑머신의 마스터스핀들을 나타내는 사시도Figure 3 is a perspective view showing the master spindle of the tapping machine according to the present invention

도 4는 본 고안에 따른 마스터스핀들을 장착한 탭핑머신의 사용상태도Figure 4 is a state of use of the tapping machine equipped with the master spindle according to the present invention

도 5는 도 4의 "가"부 확대도FIG. 5 is an enlarged view of “a” part of FIG. 4;

도 6은 도 4의 "나"부 확대도6 is an enlarged view of “B” part of FIG. 4;

*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***

1: 마스터스핀들 3: 고정플레이트1: master spindle 3: fixed plate

5: 고정지그 10: 나사축5: Fixing jig 10: Screw shaft

11: 어뎁터 12: 절연조인트11: Adapter 12: Insulation Joint

20: 하우징 25: 절연피복20: housing 25: insulation coating

27: 단자 B: 공작물27: terminal B: workpiece

C: 칩 E1, E2: 전극C: chip E1, E2: electrode

T: 공구T: Tool

Claims (2)

공구(T)를 장착한 나사축(10)을 고정플레이트(3)에 설치한 하우징(20)에 작동 가능토록 삽입한 통상의 마스터스핀들(1)을 구비하되, 탭핑머신의 본체에 대해 절연된 상태를 유지하면서 마스터스핀들(1)의 하우징(20) 및 공작물(B)에 각각 전극(E1)(E2)을 인가하여, 탭핑 가공시 상기 전극(E1)(E2)이 전기적으로 연결되는가의 여부에 따라 공구(T)의 파손을 감지하도록 한 탭핑머신에 있어서;It is provided with a conventional master spindle (1) inserted into the housing (20) in which the screw shaft (10) on which the tool (T) is mounted is inserted into the fixing plate (3), insulated from the main body of the tapping machine. The electrodes E1 and E2 are applied to the housing 20 and the work piece B of the master spindle 1 while maintaining the state, so that the electrodes E1 and E2 are electrically connected during the tapping process. According to the tapping machine for detecting the breakage of the tool (T) according to; 상기 나사축(10)이 작동 가능토록 삽입되는 하우징(20)의 내주면을 제외한 하우징(20)의 나머지 부분에 0.1~1mm의 두께로 형성한 절연피복(25)을 형성하되, 고정플레이트(3)의 하부로 돌출되는 하우징(20)의 하단 외주면에 절연피복을 삭피한 단자(27)를 형성하여, 상기 단자(27)에 상기 전극(E1)을 인가함으로써 마스터스핀들(1)의 하우징(20)이 탭핑머신의 본체에 대하여 절연되도록 한 것을 특징으로 하는 공구파손 감지장치를 구비한 탭핑머신의 마스터스핀들.An insulating coating 25 having a thickness of 0.1 to 1 mm is formed on the remaining portion of the housing 20 except for the inner circumferential surface of the housing 20 into which the screw shaft 10 is operable, and the fixing plate 3 is formed thereon. The housing 27 of the master spindle 1 is formed by forming a terminal 27 having an insulating coating on the outer circumferential surface of the lower end of the housing 20 protruding to the lower portion of the housing 20 and applying the electrode E1 to the terminal 27. Master spindle of the tapping machine with a tool breakage detection device, characterized in that the main body of the tapping machine is insulated. 삭제delete
KR2020080007660U 2008-06-09 2008-06-09 Master spindle of tapping machine with tools breakage sensing device KR200452975Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020080007660U KR200452975Y1 (en) 2008-06-09 2008-06-09 Master spindle of tapping machine with tools breakage sensing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020080007660U KR200452975Y1 (en) 2008-06-09 2008-06-09 Master spindle of tapping machine with tools breakage sensing device

Publications (2)

Publication Number Publication Date
KR20090012710U KR20090012710U (en) 2009-12-14
KR200452975Y1 true KR200452975Y1 (en) 2011-04-14

Family

ID=44245221

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020080007660U KR200452975Y1 (en) 2008-06-09 2008-06-09 Master spindle of tapping machine with tools breakage sensing device

Country Status (1)

Country Link
KR (1) KR200452975Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624338B (en) * 2012-08-24 2017-03-01 上海万木春机电设备有限公司 A kind of cantilevered electric threading machine severity control and Anti-error structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06300508A (en) * 1993-04-12 1994-10-28 Agency Of Ind Science & Technol Tool abrasion quantity detecting method and device thereof
KR100261534B1 (en) * 1995-03-09 2000-08-01 하루타 히로시 Guide bush and method for forming a hard carbon film on an interal circumferential surface of said bush
JP2002120130A (en) 2000-10-11 2002-04-23 Fuji Seiko Ltd Blade tool position control method on machine tool and device
KR100739881B1 (en) * 2006-06-05 2007-07-16 최광배 Damage perceptive method and device for tools of machine tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06300508A (en) * 1993-04-12 1994-10-28 Agency Of Ind Science & Technol Tool abrasion quantity detecting method and device thereof
KR100261534B1 (en) * 1995-03-09 2000-08-01 하루타 히로시 Guide bush and method for forming a hard carbon film on an interal circumferential surface of said bush
JP2002120130A (en) 2000-10-11 2002-04-23 Fuji Seiko Ltd Blade tool position control method on machine tool and device
KR100739881B1 (en) * 2006-06-05 2007-07-16 최광배 Damage perceptive method and device for tools of machine tool

Also Published As

Publication number Publication date
KR20090012710U (en) 2009-12-14

Similar Documents

Publication Publication Date Title
US20100087075A1 (en) Conductive contact holder, conductive contact unit, and method of manufacturing conductive contact holder
US10948373B2 (en) Pressure sensor device and electrically powered pump
CN100486747C (en) Machining fluid level detection device for wire cut electrical discharge machines
US20100251857A1 (en) Insulation stripping device comprising a contact sensor and adjustment means for an insulation stripping device
US10814403B2 (en) Tool alignment device
CN107957529B (en) Method and apparatus for testing current connections of a high voltage condenser bushing assembly
KR200452975Y1 (en) Master spindle of tapping machine with tools breakage sensing device
CN103124613A (en) Laser machining head
JP2018112423A (en) Screw seating determination structure
WO2012063621A1 (en) Machining apparatus
CN106575843A (en) Housing and assembly
JP2007212318A (en) Uninterruptible power tool and its inspection jig
JP2016223861A (en) Spindle descent distance information detection mechanism and substrate processing device with spindle descent distance information detection mechanism built in
CN104385045A (en) Special chip removing disc for drilling clamp
JP2015055596A (en) Inspection device and inspection method
CA2944996C (en) Replaceable bushing for electrical equipment
MX2018007320A (en) Method for repairing substrates with an electrically conductive coating, and laser cutting pattern.
JP2007216373A (en) Device for detecting tool breakage
JP2015074049A (en) Machining center, contact detection device, and sensor probe for contact detection
CN108418002B (en) Wiring device and air conditioner
KR100739881B1 (en) Damage perceptive method and device for tools of machine tool
JP2009290983A (en) Ground short-circuit fitting
US11241749B2 (en) Electrical discharge machining method and electrical discharge machining device
CN206074769U (en) Electric tool detection means
JP5635768B2 (en) Workpiece clamping device to prevent machine tool damage due to electric current

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20140103

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20150105

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160116

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20170113

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20180109

Year of fee payment: 8

EXPY Expiration of term