KR20120117308A - Duplex milling machine - Google Patents

Duplex milling machine Download PDF

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Publication number
KR20120117308A
KR20120117308A KR1020110034985A KR20110034985A KR20120117308A KR 20120117308 A KR20120117308 A KR 20120117308A KR 1020110034985 A KR1020110034985 A KR 1020110034985A KR 20110034985 A KR20110034985 A KR 20110034985A KR 20120117308 A KR20120117308 A KR 20120117308A
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KR
South Korea
Prior art keywords
milling machine
workpiece
pedestal
guide
unit
Prior art date
Application number
KR1020110034985A
Other languages
Korean (ko)
Inventor
황옥상
Original Assignee
황옥상
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Publication date
Application filed by 황옥상 filed Critical 황옥상
Priority to KR1020110034985A priority Critical patent/KR20120117308A/en
Publication of KR20120117308A publication Critical patent/KR20120117308A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/007—Milling machines not designed for particular work or special operations movable milling machines, e.g. on rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C1/00—Milling machines not designed for particular work or special operations
    • B23C1/04—Milling machines not designed for particular work or special operations with a plurality of horizontal 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/30—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members controlled in conjunction with the feed mechanism
    • 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
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices
    • B23Q3/1543—Stationary devices using electromagnets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Milling Processes (AREA)

Abstract

PURPOSE: A duplex-head milling machine is provided to easily fix a work piece to a support part by a magnetic body without a clamp device. CONSTITUTION: A duplex-head milling machine comprises a guide rail(200), a sliding guide rail(300), cutting units(400), a work piece support unit, a transfer unit, and a control unit. The sliding guide unit is installed on the guide rail, slides side by side along the guide rail. The cutting units move along an upper plate(130), and cut a work piece. One or more work piece support units are installed between the cutting units, and support the work piece. The transfer unit transfers the sliding guide unit and the cutting units. The control unit comprises a control board(700) and an operation panel(710). The control unit controls the sliding guide unit, the cutting units, and the work piece support unit.

Description

Duplex milling machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double head milling machine, and in particular, in a double head milling machine in which a spindle device is opposed to each other with a table interposed therebetween, in the process of fixing the work to the table, By attaching and detaching to the electromagnet, it is easy to fix the work, and the compact structure improves the efficiency of space in the workplace and improves the precision of cutting work in a more concentrated work environment. So that it relates to a double head milling machine.

In general, a milling machine rotates a cutting tool called a milling cutter with several cutting edges on a spindle, and gives a cutting depth and feed to a workpiece (workpiece) fixed on a table. As a machine tool, it is a machine tool which has a very wide range of use which can perform plane cutting, curved cutting, various groove cutting, and efficient cutting of screws, gears, cams, and the like.

Types of milling machines include a knee column milling machine, a production milling machine, a plano mirror, a special milling machine, and the like. The knee column milling machine is generally the most commonly used milling machine, and the type is horizontal. Milling machines, vertical milling machines, universal milling machines and the like.

The production milling machine is a milling machine that has been simplified to some extent and automated to be suitable for mass production. There are single heads with one spindle head, two heads with two heads, and multiple heads with three or more heads.

The planomiller is suitable for cutting large work pieces and heavy materials or for heavy cutting.

The special type milling machine is a profile milling machine which can process complex shapes such as presses, forgings and casting molds with high precision and efficiency using a copying machine, and a dedicated milling machine for cutting a screw. NC milling machine (NC milling machine), which is effective for machining simple, high-efficiency, clean milled thread, flat cam, cylindrical cam, plate gauge, etc. ).

Among the above milling machines, the two-head milling machine is installed with the spindle unit facing each other with a table in between, and is widely used in the field of heavy-cutting milling with high speed and high precision. Has characteristics.

On the other hand, in the case of the two-head milling machine as described above, a separate clamp (clamp) device must be used in the process of fixing the workpiece to the table, there was a problem that the work of fixing the workpiece is very cumbersome.

In addition, in the case of a conventional double-headed milling machine, as the size of the spindle head is provided by the plurality of spindle spindles to occupy more than a certain amount of installation space, it is inefficient in terms of space efficiency and expects to improve the precision according to the cutting operation. There was a difficult problem.

The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to be able to simultaneously process one side of each of the workpieces or two surfaces of the workpieces through a pair of left and right cutting parts disposed opposite to each other. It is to provide a double head milling machine.

It is another object of the present invention to provide a double head milling machine in which a workpiece can be detachably attached to a workpiece support without using a separate clamp device.

Another object of the present invention is to increase the efficiency of the space by taking up less space than the conventional double-headed milling machine in the workplace through a compact (compact) structure, and improve the precision according to the cutting operation in a more concentrated work environment To provide a double-headed milling machine capable of planning.

An object of the present invention described above, the guide rail 200 disposed in a plurality along the longitudinal direction of the top plate 130 of the base portion 100; A sliding guide part 300 installed on the guide rail 200 and configured to slide left and right along the width direction of the upper plate 130 on the guide rail 200; A cutting processing unit 400 installed in the sliding guide part 300 and processing the workpiece while being transported back and forth along the longitudinal direction of the upper plate 130; At least one or more installed between the cutting processing unit 400, the workpiece support unit 500 for supporting the workpiece; A transfer device unit 600 installed at one side of the upper plate 130 to transfer the sliding guide part 300 and the cutting processing part 400 along the width direction of the upper plate 130; And a control panel 700 for generating a control signal, and an operation panel 710 connected to the control panel 700, wherein the sliding guide part 300, the cutting part 400, and the work support part 500 are provided. It is achieved by a double-headed milling machine comprising a control unit for controlling the operation of.

Preferably the sliding guide 300 in the present invention, the guide bracket 310 is fitted to the guide rail 200; A pedestal 330 to which the guide bracket 310 is attached; Guide rails 340 disposed on both sides of an upper surface of the pedestal 330; It includes a feed screw 350 is installed between the guide rails 340 to be rotatable along the longitudinal direction of the upper surface of the pedestal 330.

In addition, the cutting processing unit in the present invention, the guide bracket 410 is fitted to the guide rail 340; A pedestal 420 to which the guide bracket 410 is attached; A spindle box 430 installed on the pedestal 420; It includes a spindle 440 rotatably installed in the spindle box 430.

In addition, in the present invention, the spindle 440 may be moved back and forth within the spindle box 430 corresponding to the size of the workpiece.

In addition, the work support 500 in the present invention, the lower support member 510 is installed on the pedestal 330; An upper support member 520 installed on the lower support member 510; Magnetic material 530 is installed on the upper support member 520.

In addition, in the present invention, the magnetic body 530 is an electromagnet selectively magnetized according to the application of power.

In addition, the transfer device 600 in the present invention, the first shaft 610 is installed to be rotated through the handle 620 along the longitudinal direction of the top plate 130; The second shaft 640 is rotated along the width direction of the upper plate 130 through the gear 650 provided in a direction orthogonal to the gear 630 provided in the first shaft 610.

In addition, the threaded portion 660 is formed at both ends of the second shaft 640 in the present invention.

According to the two-head milling machine of the present invention as described above has the following advantages.

First, one side of the workpiece or two surfaces of the workpiece may be simultaneously processed through a pair of left and right cutting units disposed to face each other.

Second, since the workpiece is attached to and detached from the magnetic support without using a separate clamp device, the work of fixing the workpiece is easily performed.

Third, the compact structure occupies less space than the conventional double-headed milling machine in the workplace, thereby increasing the efficiency of the space and improving the precision according to the cutting operation in a more concentrated work environment. .

1 is a perspective view showing a double-headed milling machine according to an embodiment of the present invention,
2 is an exploded perspective view of the two-head milling machine shown in FIG.
3 is a front view of a double head milling machine according to the present invention,
4 is a rear view of a double head milling machine according to the present invention;
5 is a left side view of a double head milling machine according to the present invention;
6 is a right side view of a double head milling machine according to the present invention;
7 is a plan view of a two-head milling machine according to the present invention,
8 is a bottom view of a duplex milling machine according to the present invention.

Hereinafter, a double-headed milling machine according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

The terms or words used below should not be construed as being limited to ordinary or dictionary meanings, and the inventors can properly define the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

1 is a perspective view showing a double head milling machine according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the double head milling machine shown in Figure 1, Figure 3 is a front view of a double head milling machine according to the present invention.

4 is a rear view of a double head milling machine according to the present invention, FIG. 5 is a left side view of a double head milling machine according to the present invention, and FIG. 6 is a right side view of a double head milling machine according to the present invention.

In addition, Figure 7 is a plan view of a double-headed milling machine according to the present invention, Figure 8 is a bottom view of a double-headed milling machine according to the present invention, referring to Figures 1 to 8 the double-headed milling machine according to the present invention is largely a base portion 100, the sliding guide part 300, the cutting part 400, the workpiece support part 500, the transfer device part 600, and a control part.

1, 2, and 8, the base unit 100 is a plurality of horizontal members 110 and the vertical member 120 is connected to each other to form a support frame, the top plate 130 for finishing on the top Attached.

In addition, a plurality of guide rails 200 (three in the present invention) are arranged at equal intervals along the longitudinal direction of the upper plate 130.

1 and 2, the sliding guide part 300 is installed on the guide rails 200 and slides left and right along the width direction of the upper plate 130 on the guide rails 200. A pair of guide brackets 310 are fitted to the guide rails 200, and one side of the center guide bracket 310 is integrally formed with a connecting bracket 320 through which a second shaft 640 to be described later penetrates. The guide bracket 310 is attached to the bottom of the pedestal 330.

In addition, the guide rails 340 are disposed on both sides of the upper surface of the pedestal 330, and the feed screw 350 is rotatably installed along the longitudinal direction of the upper surface of the pedestal 330 between the guide rails 340.

At this time, the rotating means for rotating the feed screw 350 is fixed to the drive motor 360 is installed on one side lower end of the pedestal 330, the drive pulley 370 is connected to the shaft of the drive motor, the drive pulley 370 And driven pulley 380 are connected by belt 390, while driven pulley 380 is connected to one end of feed screw 350.

1 and 2, the cutting part 400 is installed on the sliding guide part 300 to cut the workpiece (not shown) while being transported back and forth along the longitudinal direction of the upper plate 130. The pair of guide brackets 410 are fitted to the guide rails 340, and the guide brackets 410 are attached to the bottom of the pedestal 420.

In addition, the spindle box 430 is fixedly installed on the pedestal 420, the spindle 440 is rotatably installed on the spindle box, and the milling cutter (not shown) is detached from the spindle.

At this time, the rotating means for rotating the spindle 440 is fixed to the spindle motor 450 that provides a rotational force of a predetermined rotation speed on the top of the spindle box 430, the drive pulley 460 is connected to the shaft of the spindle motor The driving pulley 460 and the driven pulley 470 are connected by the belt 480.

In addition, the spindle 440 is connected to a power pack (not shown) of a motor, pump, and tank integrated structure so that the spindle can be driven by driving a solenoid in the spindle box 430 in correspondence with the size of the workpiece. The forward and backward movement of 440 is possible.

1 and 2, the workpiece support part 500 is installed at least one along the longitudinal direction of one side of the pedestal 330 between the cutting parts 400 to support the workpiece, having a rectangular parallelepiped shape. The lower support member 510 is fixedly installed on the pedestal 330, the upper support member 520 is fixedly installed on the lower support member 510, and the magnetic body 530 is fixed on the upper support member 520. It is installed.

At this time, the magnetic body 530 is preferably composed of an electromagnet that is selectively magnetized according to the application of power.

In addition, although not shown in the drawing, it is also possible to install a vacuum chuck on the upper support member 520 to fix a workpiece that cannot be fixed with a magnetic material, that is, non-ferrous metals such as stainless steel and aluminum.

1, 2, and 7, the transfer device unit 600 is installed at one side with respect to the center of the upper plate 130, and the sliding guide unit 300 described above along the width direction of the upper plate 130. Since the cutting processing unit 400 is moved to the left and right, the first shaft 610 is installed in the central portion of the base portion 100 to be rotated along the longitudinal direction of the upper plate 130 through the handle 620, The gear 630 is installed at the tip of the first shaft 610, and the second shaft 640 provided with the other gear 650 in the direction orthogonal to the gear is rotated along the width direction of the upper plate 130. It is installed. In addition, threaded portions 660 are formed at both ends of the second shaft 640.

The control unit controls the operation of the sliding guide unit 300, the cutting unit 400, and the workpiece support unit 500 of the above-described components, the control unit is composed of a PLC, PS, fuses, wires, etc. to control Control panel 700 for generating a signal, and various operating switches (electromagnet on / off, power, manual / automatic) and on / off button and an operation panel 710 connected to the control panel 700 It is possible to automatically control the desired processing by the user's program operation, and reference numerals 392 and 670 in the drawings are bearing blocks.

Hereinafter, the operation of the present invention having the above configuration will be described with reference to FIGS. 1, 2, and 7.

When the workpiece is to be processed through a double-headed milling machine according to the present invention, the magnetic body 530, that is, put the workpiece on the electromagnet, by exciting the electromagnet through the switch operation of the operation panel 710 Fix the workpiece by magnetic force.

Subsequently, when the driving motor 360 is operated by the button manipulation of the operation panel 710, the power is transmitted through both pulleys 370 and 380 and the belt 390 to rotate the feed screw 350. In conjunction with this, the pedestal 420 is transported in the front-rear direction along the longitudinal direction of the upper plate 130 by the guide rail 340 through the guide bracket 410, in this way the cutting processing unit 400 is the cutting position of the workpiece When it reaches, the drive motor 360 is stopped.

On the other hand, when the size of the workpiece is large and wants to place it on both magnetic bodies 530, or both sides of the workpiece to be processed at the same time, it is necessary to narrow the interval of the workpiece support 500.

In this case, the first shaft 610 and the gear 630 is rotated in the clockwise direction in conjunction with the handle 620 is rotated in a clockwise direction, for example, the other gear 650 engaged with the gear 630. ) Rotates the second shaft 640 as well, so that the pedestal 330 is transferred to the center portion along the width direction of the upper plate 130 by the guide rails 200 through the guide bracket 310. Similarly, when the pedestal 330 reaches the proper position, the operation of the handle 620 is stopped.

Subsequently, when the driving pulley 460 rotates according to the operation of the spindle motor 450, the power is transmitted to the driven pulley 470 through the belt 480, and the spindle 440 rotates to be mounted on the spindle 440. It is possible to machine the workpiece through the milling cutter.

On the other hand, if you want to widen the interval between the workpiece support 500, the first shaft 610 and the gear 630 is rotated counterclockwise as the handle 620 is rotated counterclockwise in contrast to the above, The second shaft 640 also rotates while the other gear 650 meshed with the gear 630 also rotates, so that the pedestal 330 rides on the guide rail 200 through the guide bracket 310 and the top plate 130. It is conveyed in the left and right directions along the width direction of), and when the pedestal 330 reaches the proper position, the operation of the handle 620 is stopped.

In the above process, one side of the workpiece or two surfaces of the workpiece may be simultaneously processed through a pair of left and right cutting units 400 disposed opposite to each other on the top plate 130 of the base unit 100.

In addition, since the workpiece is attached to and detached from the magnetic body 530 without using a separate clamp device in the process of being fixed to the workpiece support part 500, the fixing work of the workpiece is easily performed.

In addition, since the two-head milling machine apparatus including the control panel 700 and the operation panel 710 has a compact structure, it takes up less space than the conventional two-head milling machine in the workplace, thereby increasing space efficiency. In addition, it is possible to improve the precision according to the cutting work in a more concentrated work environment.

As described above, the two-head milling machine according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the technical scope of the present invention. Of course it can.

100: base 130: top plate
200,340: guide rail 300: sliding guide part
330420: pedestal 350: feed screw
360: driving motor 370,460: driving pulley
380,470: driven pulley 390,480: belt
400: cutting part 440: spindle
500: workpiece support 530: magnetic material
600: feeder unit 610: first shaft
620: handle 640: second shaft
700: control panel 710: operation panel

Claims (8)

A plurality of guide rails 200 disposed along the longitudinal direction of the upper plate 130 of the base part 100;
A sliding guide part 300 installed on the guide rail 200 and configured to slide left and right along the width direction of the upper plate 130 on the guide rail 200;
A cutting processing unit 400 installed in the sliding guide part 300 and processing the workpiece while being transported back and forth along the longitudinal direction of the upper plate 130;
At least one or more installed between the cutting processing unit 400, the workpiece support unit 500 for supporting the workpiece;
A transfer device unit 600 installed at one side of the upper plate 130 to transfer the sliding guide part 300 and the cutting processing part 400 along the width direction of the upper plate 130; And
Control panel 700 for generating a control signal, and the operation panel 710 connected to the control panel 700, and comprises a sliding guide portion 300, the cutting processing portion 400, and the workpiece support portion 500 And a control unit for controlling the operation.
The method of claim 1,
The sliding guide part 300,
A guide bracket 310 fitted to the guide rail 200;
A pedestal 330 to which the guide bracket 310 is attached;
Guide rails 340 disposed on both sides of an upper surface of the pedestal 330;
Two-head milling machine including a feed screw 350 is installed to be rotatable along the longitudinal direction of the upper surface of the pedestal (330) between the guide rail (340).
3. The method according to claim 1 or 2,
The cutting processing unit,
A guide bracket 410 fitted to the guide rail 340;
A pedestal 420 to which the guide bracket 410 is attached;
A spindle box 430 installed on the pedestal 420;
Double head milling machine including a spindle (440) rotatably installed in the spindle box (430).
The method of claim 3, wherein
The spindle 440 is,
Double head milling machine capable of moving back and forth in the spindle box (430) corresponding to the size of the workpiece.
3. The method according to claim 1 or 2,
The workpiece support part 500,
A lower support member 510 installed on the pedestal 330;
An upper support member 520 installed on the lower support member 510;
Double head milling machine including a magnetic body (530) is installed on the upper support member (520).
6. The method of claim 5,
The magnetic body 530 is an electromagnet that is selectively magnetized upon application of power.
The method of claim 1,
The transfer device unit 600,
A first shaft 610 pivotally installed through the handle 620 along the longitudinal direction of the upper plate 130;
Double head milling machine including a second shaft 640 rotated along the width direction of the top plate 130 through the gear 650 installed in a direction orthogonal to the gear 630 provided on the first shaft 610 .
8. The method of claim 7,
Both ends of the second shaft 640, the two-head milling machine is formed with a threaded portion (660).
KR1020110034985A 2011-04-15 2011-04-15 Duplex milling machine KR20120117308A (en)

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Application Number Priority Date Filing Date Title
KR1020110034985A KR20120117308A (en) 2011-04-15 2011-04-15 Duplex milling machine

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Application Number Priority Date Filing Date Title
KR1020110034985A KR20120117308A (en) 2011-04-15 2011-04-15 Duplex milling machine

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KR20120117308A true KR20120117308A (en) 2012-10-24

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101467730B1 (en) * 2014-04-03 2014-12-01 김창기 Horizontal cutting machine
KR200477624Y1 (en) * 2014-10-06 2015-07-01 김병진 processing apparatus for two heads milling with expansion type bracket
CN104759668A (en) * 2015-03-17 2015-07-08 黄春凤 Flywheel shell processing technology
CN104759669A (en) * 2015-03-17 2015-07-08 黄春凤 Double-surface processing milling machine used for flywheel shell
KR101535901B1 (en) * 2013-10-29 2015-07-13 (주)알루코 processing apparatus for two heads milling
KR101710838B1 (en) 2016-08-22 2017-02-27 고정완 Duplex milling apparatus
CN108161085A (en) * 2017-12-22 2018-06-15 渤海造船厂集团有限公司 A kind of two-way machining set-up in ship scene
CN108555405A (en) * 2018-07-09 2018-09-21 浙江芊荷科技有限公司 Can automatic clamping electrical spark working tool and mould
CN109396505A (en) * 2018-12-27 2019-03-01 山东临沂金星机床有限公司 The continuous Automatic-clamping of workpiece multistation unclamps, rotates the lathe of milling
KR102003399B1 (en) 2019-03-04 2019-10-01 (주)오성지엠 Double side grinding apparatus capable of continuous processing
KR102039147B1 (en) 2019-03-20 2019-10-31 (주)오성지엠 Grinding component supply apparatus
CN110480078A (en) * 2019-09-27 2019-11-22 杭州丰源铜业有限公司 A kind of double milling machinery processing apparatus of copper joint of pressure gage pneumatic type double-pole
WO2020125036A1 (en) * 2018-12-21 2020-06-25 苏州梦霖展示道具有限公司 Edge milling machine
CN116618723A (en) * 2023-06-10 2023-08-22 南通神州光学仪器有限公司 Reciprocating type multi-head milling machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101535901B1 (en) * 2013-10-29 2015-07-13 (주)알루코 processing apparatus for two heads milling
KR101467730B1 (en) * 2014-04-03 2014-12-01 김창기 Horizontal cutting machine
KR200477624Y1 (en) * 2014-10-06 2015-07-01 김병진 processing apparatus for two heads milling with expansion type bracket
CN104759668A (en) * 2015-03-17 2015-07-08 黄春凤 Flywheel shell processing technology
CN104759669A (en) * 2015-03-17 2015-07-08 黄春凤 Double-surface processing milling machine used for flywheel shell
KR101710838B1 (en) 2016-08-22 2017-02-27 고정완 Duplex milling apparatus
CN108161085A (en) * 2017-12-22 2018-06-15 渤海造船厂集团有限公司 A kind of two-way machining set-up in ship scene
CN108555405A (en) * 2018-07-09 2018-09-21 浙江芊荷科技有限公司 Can automatic clamping electrical spark working tool and mould
WO2020125036A1 (en) * 2018-12-21 2020-06-25 苏州梦霖展示道具有限公司 Edge milling machine
CN109396505A (en) * 2018-12-27 2019-03-01 山东临沂金星机床有限公司 The continuous Automatic-clamping of workpiece multistation unclamps, rotates the lathe of milling
KR102003399B1 (en) 2019-03-04 2019-10-01 (주)오성지엠 Double side grinding apparatus capable of continuous processing
KR102039147B1 (en) 2019-03-20 2019-10-31 (주)오성지엠 Grinding component supply apparatus
CN110480078A (en) * 2019-09-27 2019-11-22 杭州丰源铜业有限公司 A kind of double milling machinery processing apparatus of copper joint of pressure gage pneumatic type double-pole
CN116618723A (en) * 2023-06-10 2023-08-22 南通神州光学仪器有限公司 Reciprocating type multi-head milling machine

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