KR100761196B1 - Spindle attachment automatic control system of a machine tool - Google Patents

Spindle attachment automatic control system of a machine tool Download PDF

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KR100761196B1
KR100761196B1 KR1020060113257A KR20060113257A KR100761196B1 KR 100761196 B1 KR100761196 B1 KR 100761196B1 KR 1020060113257 A KR1020060113257 A KR 1020060113257A KR 20060113257 A KR20060113257 A KR 20060113257A KR 100761196 B1 KR100761196 B1 KR 100761196B1
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South Korea
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attachment
spindle
machine tool
detection
adapter
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KR1020060113257A
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Korean (ko)
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정상현
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두산인프라코어 주식회사
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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
    • 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
    • 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
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • 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
    • B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

A spindle attachment automatic control system of a machine tool is provided to enable automatic recognition of types of attachment that are mounted on a milling spindle by a detection sensor and a sensing dog without resetting programs or machining conditions. A spindle attachment automatic control system(100) of a machine tool comprises an attachment adaptor(112), a cover(140), a plurality of detection sensors(150), and a sensing dog(160). The attachment adaptor is connected to a front end of a milling spindle(110), having a plurality of mounting grooves(132) on the predetermined position. The cover is provided on the front side of the attachment adapter for blocking the entering of chips during the machining of a boring spindle. The plurality of detection sensors are provided on the front surface of the milling spindle to detect the selected types of attachment adaptor.

Description

공작기계의 스핀들 어태치먼트 자동 제어장치{SPINDLE ATTACHMENT AUTOMATIC CONTROL SYSTEM OF A MACHINE TOOL}SPINDLE ATTACHMENT AUTOMATIC CONTROL SYSTEM OF A MACHINE TOOL}

도 1은, 종래의 스핀들 어태치먼트 제어장치를 도시한 개략적인 구성도.1 is a schematic configuration diagram showing a conventional spindle attachment control device.

도 2는, 본 발명에 따른 어태치먼트 제어장치를 도시한 개략적인 구성도.Figure 2 is a schematic configuration diagram showing an attachment control device according to the present invention.

도 3은, 본 발명에 따른 스핀들에 구비된 감지센서를 도시한 개략적인 구성도.Figure 3 is a schematic configuration diagram showing a sensing sensor provided in the spindle according to the present invention.

** 도면 중 주요부분에 대한 부호의 설명 **** Explanation of symbols for main parts of the drawing **

100 : 스핀들 어태치먼트 자동 제어장치,100: spindle attachment automatic control device,

110 : 밀링 스핀들(Milling Spindle),110: milling spindle,

112 : 어태치먼트 어댑터(Attachment Adapter),112: Attachment Adapter (Attachment Adapter),

120 : 보링 스핀들(Boring Spindle),120: Boring Spindle,

130 : 커넥팅핀,130: connecting pin,

132 : 장착홈,132: mounting groove,

140 : 커버,140: cover,

150 : 감지센서,150 sensor,

160 : 감지도그(Dog),160: detection dog (Dog),

170 : 플랜지.170: flange.

본 발명은 공작기계의 스핀들 어태치먼트 장치에 관한 것으로, 보다 상세하게는, 스핀들에 어태치먼트 어댑터를 미리 부착하고 사용하고자하는 각각의 어태치먼트를 교체하는 경우 스핀들에 구비되는 감지센서가 자동으로 어태치먼트의 종류를 인식하게 됨으로써 별도의 프로그램이나 각 가공조건을 재셋팅하지 않은 상태에서도 가공을 수행할 수 있고, 이에 인해 가공성 및 생산성을 향상시킬 수 있도록 한 공작기계의 스핀들 어태치먼트 자동 제어장치에 관한 것이다.The present invention relates to a spindle attachment device of a machine tool, and more particularly, a sensor attached to a spindle automatically recognizes an attachment type when an attachment adapter is attached to a spindle in advance and each attachment to be used is replaced. The present invention relates to an automatic control system for spindle attachment of a machine tool, which enables machining to be performed without resetting a separate program or each machining condition, thereby improving workability and productivity.

종래의 스핀들 어태치먼트 제어장치(10)는 공작기계의 회전 가공을 위해 스핀들(Spindle)의 선단면에 가공 어태치먼트(Attachment)를 부착하여 가공하기 위해 단순히 밀링 스핀들(Milling Spindle, 20)에 한 종류의 어태치먼트(미도시)만을 부착하는 구조로 이루어져 있다. 즉, 밀링 스핀들(20)의 플랜지(Flange, 30)의 단면에 사용하고자 하는 어태치먼트만을 부착함과 아울러 보링 스핀들(Boring Spindle, 40)에 공구를 부착하여 밀링 스핀들의 회전에 따라 가공하고 이 경우에도 한 개의 어태치먼트만을 장착 가공하는 구조로 되어 있다.Conventional spindle attachment control device 10 is simply a type of attachment to the milling spindle (Milling Spindle) 20 to attach the machining attachment (Attachment) to the front end surface of the spindle for the rotational machining of the machine tool It consists of a structure to attach only (not shown). That is, attach only the attachment to be used on the cross section of the flange 30 of the milling spindle 20, and attach a tool to the boring spindle 40 to process it according to the rotation of the milling spindle. It is structured to attach and process only one attachment.

이러한, 종래의 공작기계의 회전 가공구조에 의하면 가공시 스핀들에 한 개의 어태치먼트만을 부착하고 다른 공정에서 수동으로 탈착하여 다른 어태치먼트를 교체하여야 함으로써 어태치먼트의 셋업(Setup) 시간이 많이 소요되고 어태치먼트별로 가공 정보를 자동적으로 확인할 수 없는 문제점을 유발하였다. According to the conventional rotary machining structure of the machine tool, only one attachment is attached to the spindle during machining, and the attachment and detachment is performed manually in another process to replace the other attachments, which requires a lot of setup time for attachments and the machining information for each attachment. Caused a problem that can not be automatically confirmed.

또한, 어태치먼트 장착시 자동공구교환(ATC)이 불가능하여 NC 장비이더라도 실가공은 범용장비로 밖에 활용할 수 없는 현상을 초래하였다. In addition, the automatic tool change (ATC) is not possible when mounting the attachment, even if the NC equipment, the actual machining was used as a general purpose equipment.

그리고, 각 공정별로 사용 어태치먼트가 달라짐으로 각각의 가공조건(예를 들면, 스핀들 속도, 피드(Feed), W축 이송 스트로크 리미트 값 등)을 다시 셋팅(Setting)해야 할 뿐만 아니라 이에 따른 프로그램도 각각 다시 셋팅해야 하는 문제점이 있었다. In addition, as the attachments are different for each process, each machining condition (for example, spindle speed, feed, W-axis feed stroke limit value, etc.) must be set again, and the corresponding program is also reset. There was a problem that needs to be reset.

본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로, 밀링스핀들에 어태치먼트 어탭터를 미리 부착해 사용하고자 하는 각각의 어태치먼트를 교체할 수 있도록 하여 스핀들에 장착되는 감지센서 및 감지도그를 통해 자동으로 어태치먼트의 종류를 인식할 수 있도록 함으로써 별도의 프로그램이나 각 가공조건을 재셋팅하지 않고서도 가공을 수행하여 이에 따른 가공성 및 생산성을 향상시킬 수 있도록 하는 데 그 목적이 있다. The present invention has been made to solve the above problems, by attaching the attachment adapter to the milling spindle in advance to replace each attachment to be used to automatically the attachment of the attachment through the detection sensor and detection dog mounted on the spindle By recognizing the type, the object of the present invention is to improve machining and productivity by performing machining without resetting a separate program or each machining condition.

본 발명은 상기와 같은 기술적 과제를 해결하기 위해 안출된 것으로, 공작기계의 밀링 스핀들에 장착되는 어태치먼트에 있어서, 밀링 스핀들의 선단면에 체결되며, 소정 위치에 형성된 복수개의 장착홈을 갖는 어태치먼트 어댑터; 이 어태치먼트 어댑터의 전단면에 구비되어 보링스핀들 가공시 칩의 유입을 차단하는 커버; 밀링 스핀들의 전면에 구비되어 어태치먼트 어댑터의 선택 종류를 감지하는 복수개의 감지센서; 및 어태치먼트 어댑터에 각각의 어태치먼트의 조립에 따라 감지센서 를 터칭시키는 감지도그; 를 포함하는 것을 특징으로 한다. The present invention has been made to solve the above technical problem, in the attachment mounted on the milling spindle of the machine tool, the attachment adapter is fastened to the front end surface of the milling spindle, and having a plurality of mounting grooves formed in a predetermined position; A cover provided at the front end surface of the attachment adapter to block the inflow of chips during boring spindle processing; A plurality of detection sensors provided on the front surface of the milling spindle for detecting a selection of attachment adapters; And a sensing dog for touching the sensing sensor according to the assembly of each attachment to the attachment adapter. Characterized in that it comprises a.

그리고, 복수의 감지센서(150)로부터 인식된 신호를 입력받아 어태치먼트의 회전속도, 이송량, 이송한계를 제어하는 제어부를 더 포함한다. The controller may further include a controller configured to control the rotation speed, the feed amount, and the transfer limit of the attachment by receiving signals recognized from the plurality of detection sensors 150.

또한, 감지센서 및 감지도그는 적어도 2개 이상으로 구비하는 것이 바람직하다. In addition, it is preferable to provide at least two detection sensors and detection dogs.

이하, 첨부된 도면을 참조로 하여 본 발명을 보다 상세하게 설명한다. Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 2는, 본 발명에 따른 어태치먼트 제어장치를 도시한 개략적인 구성도이고, 도 3은, 본 발명에 따른 스핀들에 구비된 감지센서를 도시한 개략적인 구성도이다.2 is a schematic configuration diagram showing an attachment control apparatus according to the present invention, Figure 3 is a schematic configuration diagram showing a sensing sensor provided in the spindle according to the present invention.

도시된 바와 같이, 본 발명은 공작기계의 밀링 스핀들(110)에 장착되는 어태치먼트에 있어서, 밀링 스핀들(110)의 선단면에 체결되며, 소정 위치에 형성된 복수개의 장착홈(132)을 갖는 어태치먼트 어댑터(112); 이 어태치먼트 어댑터(112)의 전단면에 구비되어 보링스핀들(120) 가공시 칩의 유입을 차단하는 커버(140); 밀링 스핀들(110)의 전면에 구비되어 어태치먼트 어댑터(112)의 선택 종류를 감지하는 복수개의 감지센서(150); 및 어태치먼트 어댑터(112)에 각각의 어태치먼트의 조립에 따라 감지센서(150)를 터칭시키는 감지도그(160); 를 포함하는 것을 특징으로 한다. As shown, the present invention in the attachment mounted on the milling spindle 110 of the machine tool, the attachment adapter is fastened to the front end surface of the milling spindle 110, having a plurality of mounting grooves 132 formed in a predetermined position (112); A cover 140 provided at the front end surface of the attachment adapter 112 to block inflow of chips during processing of the boring spindles 120; A plurality of detection sensors 150 provided on the front surface of the milling spindle 110 to detect a selection type of the attachment adapter 112; And a sensing dog 160 for touching the sensing sensor 150 according to the assembly of each attachment to the attachment adapter 112. Characterized in that it comprises a.

즉, 다양한 어태치먼트를 부착할 수 있는 어태치먼트 어댑터(112)를 플랜지(170)의 일측에 구비되는 밀링 스핀들(110)의 선단면에 밀착되어 체결되도록 한 다. 이 때, 어태치먼트 어댑터(112)를 플랜지(170)에 볼트 등의 체결수단을 통해 조립하게 된다. That is, the attachment adapter 112, which can attach various attachments, is tightly coupled to the front end surface of the milling spindle 110 provided at one side of the flange 170. At this time, the attachment adapter 112 is assembled to the flange 170 through fastening means such as bolts.

그리고, 어태치먼트를 구비하지 않고 절삭을 할 경우 직접적으로 보링 스핀들(120)에 공구를 장착하여 가공을 하게 되고, 어태치먼트를 사용할 경우에는 커버(140)를 이탈시켜 어태치먼트 어댑터(112)에 사용하고자 하는 각각의 어태치먼트를 부착하게 된다. 이 때, 장착홈(132)에 장착되는 커넥팅핀(130)의 조정을 통해 어태치먼트 어댑터(112)에 어태치먼트를 부착하게 되는 것이다. In addition, when cutting without attachments, the tool is directly mounted to the boring spindle 120 for processing, and when the attachment is used, the cover 140 is separated to be used for the attachment adapter 112. Attachment of is attached. At this time, the attachment is attached to the attachment adapter 112 by adjusting the connecting pin 130 mounted on the mounting groove 132.

이 과정에서, 밀링 스핀들(110)에 다양한 어태치먼트의 부착이 가능하게 되는 데, 각각의 어태치먼트별로 엠코드(M-Code)를 사용할 수 있게 된다. In this process, it is possible to attach a variety of attachments to the milling spindle 110, it is possible to use the M-code (M-Code) for each attachment.

또한, 각각의 어태치먼트별 가공조건인 회전속도, 이송량, 이송한계의 데이터 및 프로그램이 사전에 셋팅(Setting)되고, 어태치먼트(200)의 종류에 따라 어태치먼트 인식용 감지도그(Dog, 160)가 이동해서 각각의 감지센서(150)로부터 인식된 신호를 제어부로 송출한다. 이 때, 어태치먼트 인식용 감지도그(160)의 이동거리는 감지센서(150)의 능력을 감안하여 조정할 수 있다. In addition, data of the rotational speed, the feed amount, the transfer limit, and the program, which are processing conditions for each attachment, are set in advance, and the attachment dog detection dogs 160 are moved according to the type of the attachment 200. The signal recognized by each sensor 150 is sent to the controller. At this time, the movement distance of the attachment recognition sensing dog 160 may be adjusted in consideration of the capability of the detection sensor 150.

아울러, 감지센서(150 : 150a, 150b, 150c) 및 감지도그(160)는 적어도 2개 이상을 구비하여 각각의 어태치먼트별 제어가 가능하도록 하는 것이 바람직하다. 즉, 사용하는 어태치먼트의 갯수에 따라 감지센서(150) 및 감지도그(160)의 사용 갯수를 가변시켜 사용의 편리성을 향상시킬 수 있게 된다. 이러한 감지센서(150)에서 송출된 어태치먼트의 정보에 대한 신호를 제어부에서 인식하여 어태치먼트의 가공동작을 제어하게 되는 것이다. In addition, the sensor 150 (150a, 150b, 150c) and the detection dog 160 is preferably provided with at least two or more to enable the control for each attachment. That is, it is possible to improve the convenience of use by varying the number of use of the sensor 150 and the detection dog 160 according to the number of attachments to be used. The control unit recognizes the signal for the attachment information sent from the sensor 150 to control the machining operation of the attachment.

예를 들어, 어태치먼트가 3가지 구비되었을 경우의 자동제어조건은 다음의 표 1과 같다.For example, the automatic control conditions when three attachments are provided are shown in Table 1 below.

ITEM LOADED ON BONNET ITEM LOADED ON BONNET 감지센서 1Detection sensor 1 감지센서 2Detection sensor 2 감지센서 3Detection sensor 3 COVER PLATECOVER PLATE ONON OFFOFF ONON BORING TOOL NO.1BORING TOOL NO.1 ONON OFFOFF OFFOFF BORING TOOL NO.2BORING TOOL NO.2 OFFOFF ONON OFFOFF FACING HEAD TOOLFACING HEAD TOOL ONON ONON OFFOFF

OFF : 감지센서 OFFOFF: Sensor off

ON : 감지센서 ON(커버 ON)ON: Detection sensor ON (cover ON)

ALL OFF : 어태치먼트 프로그램 정지(어태치먼트 없음)ALL OFF: Attachment program stopped (no attachment)

이와 같은 본 발명의 구성에 의하면, 어태치먼트의 종류를 인식하여 자동공구교환(ATC)이 가능하게 되고 작업자의 가공 프로그램 입력 오류를 자동적으로 발견하여 작업전에 오류를 차단할 수 있음으로 각각의 어태치먼트별 자동제어가 가능하게 되는 것이다. According to the configuration of the present invention, the automatic tool change (ATC) is possible by recognizing the type of attachment, and the operator can automatically detect the machining program input error and block the error before the operation. Will be possible.

이상에서 설명한 본 발명은 상술한 실시예 및 첨부된 도면에 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위내에서 여러 가지 치환, 변형 및 변경이 가능하다는 것이 본 발명이 속하는 기술분야에서 통상의 지식을 가진자에게 있어 명백할 것이다. The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

상기와 같은 본 발명에 따른 공작기계의 스핀들 어태치먼트 자동 제어장치에 의하면, 밀링 스핀들에 부착되는 어태치먼트들의 종류를 스핀들에 장착되는 감지센서 및 감지도그를 통해 자동으로 인식할 수 있도록 함으로써 별도의 프로그램이나 각 가공조건을 재셋팅하지 않고서도 가공을 수행하여 이에 따른 가공성 및 생산성을 향상시키는 효과를 창출할 수 있게 된다. According to the automatic spindle attachment control device for a machine tool according to the present invention as described above, by allowing the type of attachments attached to the milling spindle to be automatically recognized through a sensing sensor and a detection dog mounted on the spindle, a separate program or each Machining can be performed without resetting machining conditions, thereby creating an effect of improving workability and productivity.

Claims (3)

공작기계의 밀링 스핀들(110)에 장착되는 어태치먼트에 있어서,In the attachment to the milling spindle 110 of the machine tool, 상기 밀링 스핀들(110)의 선단면에 체결되며, 소정 위치에 형성된 복수개의 장착홈(132)을 갖는 어태치먼트 어댑터(112);An attachment adapter 112 fastened to the front end surface of the milling spindle 110 and having a plurality of mounting grooves 132 formed at predetermined positions; 상기 어태치먼트 어댑터(112)의 전단면에 구비되어 보링스핀들(120) 가공시 칩의 유입을 차단하는 커버(140);A cover 140 provided at the front end surface of the attachment adapter 112 to block inflow of chips during boring spins 120 processing; 상기 밀링 스핀들(110)의 전면에 구비되어 어태치먼트 어댑터(112)의 선택 종류를 감지하는 복수개의 감지센서(150); 및A plurality of detection sensors 150 provided on the front surface of the milling spindle 110 to detect a selection type of the attachment adapter 112; And 상기 어태치먼트 어댑터(112)에 각각의 어태치먼트의 조립에 따라 상기 감지센서(150)를 터칭시키는 감지도그(160);A detection dog 160 for touching the detection sensor 150 according to the assembly of each attachment to the attachment adapter 112; 를 포함하는 것을 특징으로 하는 공작기계의 스핀들 어태치먼트 자동 제어장치.Automatic spindle attachment control device for a machine tool comprising a. 제 1 항에 있어서,The method of claim 1, 상기 복수의 감지센서(150)로부터 인식된 신호를 입력받아 어태치먼트의 회전속도, 이송량, 이송한계를 제어하는 제어부를 더 포함하는 것을 특징으로 하는 공작기계의 스핀들 어태치먼트 자동 제어장치.And a controller configured to control the rotation speed, the feed amount, and the feed limit of the attachment by receiving the signals recognized from the plurality of detection sensors (150). 제 1 항에 있어서,The method of claim 1, 상기 감지센서(150) 및 감지도그(160)는 적어도 3개 이상인 것을 특징으로 하는 공작기계의 스핀들 어태치먼트 자동 제어장치. Automatic detection device for the spindle attachment of the machine tool, characterized in that at least three and the sensor 150 and the detection dog (160).
KR1020060113257A 2006-11-16 2006-11-16 Spindle attachment automatic control system of a machine tool KR100761196B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8069756B2 (en) * 2002-11-29 2011-12-06 Marposs Societa' Per Azioni Apparatus for automatically detecting the position of the cutting tool in the computerized numerically controlled lathe
CN103639805A (en) * 2013-11-26 2014-03-19 瓦房店轴承砂轮制造有限公司 Miller jig capable of performing trisection split machining

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020095668A (en) * 2001-06-15 2002-12-28 현대자동차주식회사 Spindle for machine tools

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020095668A (en) * 2001-06-15 2002-12-28 현대자동차주식회사 Spindle for machine tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8069756B2 (en) * 2002-11-29 2011-12-06 Marposs Societa' Per Azioni Apparatus for automatically detecting the position of the cutting tool in the computerized numerically controlled lathe
CN103639805A (en) * 2013-11-26 2014-03-19 瓦房店轴承砂轮制造有限公司 Miller jig capable of performing trisection split machining

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