WO2008086683A1 - Machine de découpage par fil-électrode à étincelle électrique - Google Patents

Machine de découpage par fil-électrode à étincelle électrique Download PDF

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Publication number
WO2008086683A1
WO2008086683A1 PCT/CN2007/003472 CN2007003472W WO2008086683A1 WO 2008086683 A1 WO2008086683 A1 WO 2008086683A1 CN 2007003472 W CN2007003472 W CN 2007003472W WO 2008086683 A1 WO2008086683 A1 WO 2008086683A1
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WO
WIPO (PCT)
Prior art keywords
wire
bracket
frame
electric discharge
motor
Prior art date
Application number
PCT/CN2007/003472
Other languages
English (en)
Chinese (zh)
Inventor
Yanqiu Wang
Original Assignee
Jiangsu Sanxing Machinery Manufacture Co., Ltd
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 Jiangsu Sanxing Machinery Manufacture Co., Ltd filed Critical Jiangsu Sanxing Machinery Manufacture Co., Ltd
Publication of WO2008086683A1 publication Critical patent/WO2008086683A1/fr

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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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • 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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode

Definitions

  • the invention relates to a wire electric discharge machine tool and belongs to the technical field of wire electric discharge machine tools.
  • the wire electric discharge machine includes a bed body, a wire transport mechanism, a wire frame, a work table, a working fluid system, a machine tool electrical appliance, and a numerical control system.
  • the wire transport mechanism usually includes a wire guide plate guide pair. (usually V-shaped guide rail pair), transmission component (spindle pair), wire motor, coupling, timing belt transmission mechanism, upper and lower carriages, fixed storage drums for transporting the wire on the wire, stroke
  • the transporting plate is fixedly mounted on the bed horizontally, and the transporting plate is mounted on the lower transporting plate by the longitudinally mounted guide rails, and the storage wire cartridge is fixedly mounted on the transporting wire on the transporting plate.
  • the wire motor is also fixedly mounted horizontally on the transporting board. It is installed coaxially with the storage tube and located on one side of the storage tube.
  • the output shaft is connected to the shaft of the storage drum through a coupling to drive the storage tube.
  • the top of the shaft of the storage drum is also equipped with a timing pulley, and the wire motor drives the screw to rotate through the synchronous belt transmission mechanism, and the upper plate of the wire fixed with the wire mother will linearly move along the screw.
  • the travel switch makes the wire motor run in time, and the wire storage tube will horizontally reciprocate linearly along the guide rail at the same time to realize the wire and discharge, and the outer cover of the wire transport mechanism is also equipped with a protective cover;
  • the wire frame includes a column fixed to the bed body and an upper arm, a lower arm and a plurality of guide wheels connected to the column;
  • a plurality of transitional guide wheels, upper and lower main wheel are closed on the upper arm and the upper and lower main wheel on the top side of the lower arm (machining zone) to form a loop.
  • the workbench includes a lower carriage, an upper carriage, a carriage motor, a table carriage guide pair, and a transmission assembly.
  • the worktable can realize the X and Y cross-type transportation under the driving of the carriage motor.
  • the workpiece is placed on the work surface, and the portion to be processed is located in the processing area.
  • wire electric discharge machine tools also include a tension adjustment mechanism (usually a heavy hammer type tensioning device). After the wire wire wound around the wire storage tube is taken out from the wire storage tube, the tension adjusting mechanism and a plurality of The transition guide wheel and the main wheel are closed at the upper arm and the upper and lower main wheel on the top side of the lower arm (machining zone) to form a loop;
  • a tension adjustment mechanism usually a heavy hammer type tensioning device
  • the existing EDM wire cutting machine has a long body, a large volume and a high cost. Since the carrying plate of the wire storage drum and the wire feeding motor is horizontally reciprocating linear motion, the occupied space is large, and it can only be disposed on the other side of the column body away from the processing area, and the length of the bed body is necessarily long. The bed is large in size, consumes a lot of materials, and costs a lot.
  • the guide rail of the wire transporting machine has high processing precision and high processing cost.
  • the change, the smoothness of the operation of the storage drum, etc. all affect the stability of the tension of the wire in the processing zone.
  • the screw pair in the wire transporting mechanism is easy to wear and has a high maintenance rate.
  • the transporter on the transport wire which is fixed to the silk mother, carries the wire storage drum and the wire drive motor, and has a large weight and a serious weight on the motor side.
  • the present invention is directed to providing a 3 ⁇ 4 low wire electric discharge machine.
  • the electric discharge wire cutting machine includes a bed body, a wire feeding mechanism, a wire frame, a work table, a working fluid system, a machine tool electrical appliance, and a numerical control system, wherein
  • the wire transporting mechanism comprises a wire motor, a coupling, a wire storage tube and a travel switch.
  • the coaxial wire of the wire motor is fixed on one side of the wire storage tube, and the output shaft drives the wire storage drum through the coupling to perform a rotary motion.
  • the wire motor shaft or the spool shaft is also connected to the active member in the transmission mechanism;
  • the wire frame includes a column fixed to the bed body and an upper arm, a lower arm and a plurality of guide wheels connected to the column;
  • a plurality of transitional guide wheels, upper and lower main wheel are closed on the upper arm and the upper and lower main wheel on the top side of the lower arm to form a loop;
  • the workbench includes a lower carriage, an upper carriage, a carriage motor, a table carriage guide pair, and a transmission assembly.
  • the table can realize X, Y-cross motion by the carriage motor, and the workpiece is placed on the work surface. Above, the part to be processed is located in the processing area;
  • the wire transporting mechanism further comprises a fixed position bracket, a wire arrangement frame equipped with the wire guide wheel, a guiding device mounted on the bracket and having a guiding direction parallel to the shaft of the wire storage drum, the wire motor,
  • the wire storage drums are fixedly mounted on the brackets, and the wire arranging frame is fixedly connected with the driven parts of the transmission mechanism, and at the same time, the wire arranging frame is fixedly connected with the moving parts in the guiding device, and the wire wire wound around the wire storage tube
  • the wire guide wheel on the wire arrangement frame is closed by the transition guide wheel and the main wheel at the top and bottom of the upper arm and the lower side of the lower arm to form a loop.
  • the transmission mechanism may adopt a timing belt transmission mechanism and a screw rod pair structure, and the screw rod is fixedly mounted on the bracket, and the nut is screwed thereto, and the main timing pulley in the timing belt transmission mechanism is installed on On the wire shaft or the shaft of the wire storage drum, the screw rod is connected with the fixed phase of the synchronous pulley, and the wire arrangement is connected with the fixed wire of the wire;
  • the guiding device can adopt a guiding rod device, which comprises a guiding rod mounted on the bracket and a sliding sleeve which is sleeved on the guiding rod and can slide along the guiding rod, and the wire discharging frame is fixedly connected with the sliding sleeve.
  • the wire motor, the wire cartridge, and the bracket are all fixed components, and the wire frame with a small mass is a moving component, and the guide wire pair of the wire feeding mechanism with high processing precision is omitted.
  • the wire motor drives the wire storage drum through the coupling to make a rotary motion.
  • the wire motor drives the reciprocating linear motion along the guide bar parallel to the axis of the wire storage drum through the synchronous belt transmission mechanism and the screw rod drive. Wire and discharge.
  • the wire storage drum and the wire motor do not need to reciprocate linearly, which eliminates the need to transport the wire under the carriage and the wire on the wire that needs to reciprocate linear movement.
  • the occupied vertical space is small, and the width of the wire barrel can be reduced. , the cost of the bed is reduced;
  • the wire guide and the wire guide of the wire transport mechanism are omitted, and the wire guide with lower quality and the guide bar device with lower price are used, and the wire is discharged through the wire frame, which greatly reduces the wire drive plate and The high cost brought by the guide rail of the wire feeder;
  • the bracket is attached to a bed that is relatively close to the processing zone.
  • the wire motor and the wire storage drum are fixedly mounted on the bracket, and the direction of the shaft of the wire storage drum is vertical.
  • a cavity is formed in the column, and a wire slot and a wire slot are respectively formed in the cavity wall of the column, and the wire motor, the wire storage tube, the guide rod, the timing belt transmission mechanism and the wire arrangement frame are fixedly mounted.
  • the bracket is fixedly mounted in the cavity of the column, and the direction of the shaft of the wire barrel is vertical.
  • a further technical solution allows the bed length to be further reduced, the bed cost to be further reduced, and the machine structure to be more compact. This technical solution also improves the waterproof performance of the wire motor and the wire storage tube, and saves the protective cover.
  • the guide bar device preferably uses two guide bars.
  • the guide rod device can also adopt a linear bearing pair.
  • a tension adjusting mechanism may also be adopted. After the wire wires around the wire storage tube are respectively taken out from both sides of the wire storage tube, the wire guiding guide wheel on the wire arranging frame is further controlled by a tension adjusting mechanism and a transition guide wheel. The wheel closes on the upper arm and the upper and lower main wheels on the top side of the lower arm to form a loop.
  • the tension adjusting mechanism can also adopt a spring guide wheel type tension adjusting mechanism, and the transition guide wheel on the wire frame is mounted on a guide block which can slide horizontally to the left and right, and one side of the guide block is provided with a spring. .
  • FIG. 1 is a schematic view of a first embodiment of the invention
  • Figure 2 is a partial rear elevational view of the embodiment of Figure 1;
  • Figure 3 is a cross-sectional view of the embodiment shown in Figure 1;
  • Figure 4 is a schematic diagram of the transmission of the embodiment shown in Figure 1;
  • Figure 5 is a schematic view of a second embodiment of the present invention.
  • Figure 6 is a left side view of the embodiment shown in Figure 5;
  • Figure 7 is a schematic structural view of a third embodiment of the present invention.
  • Figure 8 is a schematic structural view of a fourth embodiment of the present invention
  • Figure 9 is a partial enlarged view of the rear top spring type tension adjusting mechanism of Figure 8.
  • a first embodiment of the present invention is a wire electric discharge machine for a vertical operation of a wire motor and a wire storage drum. It consists of a bed body 1, a wire transport mechanism 2, a wire frame, a work table, a tension adjustment mechanism 15, a working fluid system (not shown), a machine tool and a numerical control system (not shown), among which
  • the column 10 is fixed on the bed 1 , and the upper arm 3 and the lower arm 4 are connected with the column, and the transition guide wheel 12 and the upper main wheel 8 and the lower main wheel 9 are respectively mounted thereon;
  • the workbench is installed under the upper main wheel 8 and the lower main wheel 9, and includes a carriage motor, a transmission assembly, a table carriage guide pair, a table lower carriage 6 installed through the table carriage guide pair, and a work table.
  • the carriage 5, the table can realize the X and Y cross-type movement under the driving of the carriage motor, and the workpiece is placed on the work surface, and the processing part to be processed is located in the processing area between the upper main wheel 8 and the lower main wheel 9.
  • the wire transport mechanism includes a bracket 16, a wire motor 14, a coupling 26, a wire cartridge 13, a timing pulley 22, a timing belt 23, a screw pair, and a travel switch.
  • the bracket 16 is fixedly mounted on the column 10, and the wire motor 14 and the wire storage tube 13 are vertically and coaxially mounted on the bracket 16, and the output shaft of the wire motor 14 is connected to the wire shaft through the coupling 26.
  • the upper end of the spool shaft 25 is equipped with a main timing pulley 22;
  • the bracket 16 is further provided with a wire arranging frame 19, two guiding rods 17 fixed to the bracket 16 in parallel with the spool shaft 25, a screw rod 20, and a thread nut 21 fixed to the wire arranging frame 19 and
  • the lead screw 20 is screwed together, and at the same time, the wire arranging frame 19 is fixedly connected with the sliding sleeve 18 which is set on the guiding rod, and the top end of the screw rod 20 is mounted with the synchronous timing pulley.
  • the wire storage drum When the wire motor is working, the wire storage drum is driven to rotate, and at the same time, the wire is taken up and discharged, and the screw is driven by the timing belt transmission mechanism, and then driven by the wire mother 21
  • the wire arranging frame 19 is linearly moved parallel to the wire barrel shaft 25 along the guide rod 17.
  • the wire motor is reversely operated to realize the wire arranging.
  • the wire is guided by the wire guide wheel 35 and then closed by the tension adjusting mechanism 15, the main wheel 8, 9 and the return wire tube 13 to form a loop.
  • the movement of the wire arranging frame 19 is controlled such that the wire loops via the wire guide pulley 35, the main wheel 8, 9 and the transitional guide wheel 12 are located in one plane throughout the winding and unwinding process, This helps to maintain the stability of the wire tension in the processing zone.
  • Such motion control is well known to those of ordinary skill in the art and will not be described again herein.
  • a second embodiment of the present invention is a wire electric discharge machine for horizontally placing a wire motor and a wire storage drum. It is also composed of a bed, a wire feeder, a wire frame, a workbench, a tension adjustment mechanism, a working fluid system (not shown), a machine tool and a numerical control system (not shown), among which, the bed
  • the structure of the wire frame, the work table, the tension adjusting mechanism 15, the working fluid system, the machine tool electrical appliance, and the numerical control system portion is identical to the structure of the corresponding portion of the first embodiment.
  • the bracket is fixed on the bed 1
  • the wire motor and the wire storage tube are horizontally mounted on the bracket
  • the guiding device adopts a linear bearing pair, which is the same as the first embodiment, two linear bearing spindles 17, and a screw rod 20 They are all mounted on the bracket and parallel with the spool shaft 25, and the wire rack 19 is fixedly connected with the linear bearing set on the linear bearing mandrel, and at the same time, it is fixedly connected with the wire nut 21.
  • the wire motor is in operation
  • the wire barrel is only rotated, and the wire frame 19 is reciprocated linearly in the direction of the axis 25 (horizontal direction) of the wire barrel along the guide rod 17.
  • the shield 34 is mounted on the right side of the wire feeder.
  • a cavity 24 is opened in the column 10, and a wire slot and a wire slot 29 are respectively formed in the cavity wall of the column, and the fixed slot is installed.
  • Wire motor, wire storage tube, guide rod, timing belt transmission mechanism, The bracket of the wire arranging frame is fixedly installed in the column cavity 24, and the direction of the shaft of the wire storage drum is vertical.
  • the wire motor and the wire storage tube are in a vertical and coaxial state. This embodiment does not use a tension adjusting mechanism. After the wire is taken out from the wire storage tube, the wire guide wheel and the transition guide wheel on the left side of the upper arm are The upper main wheel, the lower main wheel, and the wire receiving wire are arranged.
  • the fourth embodiment of the present invention is the only difference from the three embodiments.
  • the rear top spring guide wheel type tension adjusting mechanism is adopted, and the transition guide wheel on the left side of the upper arm is installed in a horizontal direction.
  • the guide block On the guide block sliding left and right, the guide block is mounted in a cavity opened on the left side of the upper arm, and a compression spring 31 is mounted on the right side of the guide block.
  • the number of guide rollers passing through the wire closing loop is small, and the sensitivity of the tension adjustment is high.
  • the present invention has many embodiments.
  • the transmission mechanism may adopt a gear pair, a screw nut pair, a rack and pinion pair, etc.
  • the guiding device may adopt a linear guide pair and a sliding guide.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne une machine de découpage par fil-électrode à étincelle électrique qui comprend un corps de machine (1), un mécanisme de distribution de fil (2), ainsi qu'un bâti de fil. Le mécanisme de distribution de fil (2) comprend un moteur de distribution de fil (14), un enrouleur (13), un support (16), un bâti de libération de fil (19), ainsi qu'un dispositif de guidage. Le support (16) est installé de manière fixe et le moteur de distribution de fil (14) ainsi que l'enrouleur (13) sont montés sur le support (16). Deux tiges de guidage (17) parallèles à la tige de l'enrouleur sont également placées sur le support (16). Le moteur de distribution de fil (14) entraîne l'enrouleur (13) en rotation par l'intermédiaire d'un embrayage (26) et, simultanément, le moteur de distribution de fil (14) entraîne le bâti de libération de fil (19) afin qu'il exécute un va-et-vient le long des tiges de guidage (17) par l'intermédiaire d'un mécanisme de transmission à courroie synchrone et d'un jeu de vis-mères.
PCT/CN2007/003472 2007-01-15 2007-12-06 Machine de découpage par fil-électrode à étincelle électrique WO2008086683A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2007100193930A CN101007363B (zh) 2007-01-15 2007-01-15 电火花线切割机床
CN200710019393.0 2007-01-15

Publications (1)

Publication Number Publication Date
WO2008086683A1 true WO2008086683A1 (fr) 2008-07-24

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PCT/CN2007/003472 WO2008086683A1 (fr) 2007-01-15 2007-12-06 Machine de découpage par fil-électrode à étincelle électrique

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CN (1) CN101007363B (fr)
WO (1) WO2008086683A1 (fr)

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CN103008810A (zh) * 2012-12-12 2013-04-03 中山市盈科轴承制造有限公司 线切割加工机及切割方法
CN106735651A (zh) * 2017-02-28 2017-05-31 苏州哈工乔德智能装备有限公司 一种线切割机用高强度uv轴传动装置
CN107186297A (zh) * 2017-06-30 2017-09-22 沈阳理工大学 一种精密电极数控电火花加工装置及加工方法
CN107662036A (zh) * 2017-10-17 2018-02-06 广东大铁数控机械有限公司 一种用于导轮的单边盲穿装置
CN109676813A (zh) * 2019-02-18 2019-04-26 泰州市江洲数控机床制造有限公司 砂线切割机床工件摆动切割装置
CN111673213A (zh) * 2020-06-14 2020-09-18 南京航空航天大学 一种高速往复走丝电火花线切割细丝切割两级恒张力上丝装置
CN112372855A (zh) * 2020-11-04 2021-02-19 陕西历史博物馆(陕西省文物交流中心) 一种壁画砌体剥离设备
CN113492238A (zh) * 2021-08-12 2021-10-12 武汉鑫莱尔科技有限公司 一种用于汽车配件生产的线切割机床及其使用方法
CN113977021A (zh) * 2021-09-23 2022-01-28 苏州运科星机电科技有限公司 一种可变张力的往复中走丝型电火花线切割机床
CN113996876A (zh) * 2021-11-29 2022-02-01 王晓忠 线切割机床自动穿丝装置及自动穿丝、自动收丝方法
CN115319508A (zh) * 2022-10-17 2022-11-11 烟台军恒工程机械设备有限公司 一种便于装夹工件的卧式加工中心

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CN102357691B (zh) * 2011-09-28 2014-08-27 张乾坤 一种电火花线切割用电极丝恒张力周期调节机构
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CN105171152A (zh) * 2015-10-09 2015-12-23 安徽省振泉数控科技有限公司 一种超高效节能型电火花线切割机床
CN105834535A (zh) * 2016-02-23 2016-08-10 安徽省振泉数控科技有限公司 一种超高效节能型双贮丝筒运丝机构
CN105855651A (zh) * 2016-02-23 2016-08-17 安徽省振泉数控科技有限公司 一种双丝筒电火花线切割机床
CN105773150A (zh) * 2016-05-23 2016-07-20 山西卡每特工业机械有限公司 一种高温叶片加工装置
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CN107984045B (zh) * 2017-11-29 2019-10-22 台州市银点子知识产权服务有限公司 一种超走丝线切割机
CN107914053B (zh) * 2017-12-12 2023-06-16 浙江霸器智能装备股份有限公司 一种高速电火花线切割装置
CN108436207A (zh) * 2018-05-07 2018-08-24 蒋飞跃 一种具有调节机构的线切割机
CN109514014B (zh) * 2019-01-10 2024-06-07 宁波市江北数控设备厂 一种电火花线切割机床
CN109848494B (zh) * 2019-03-05 2024-02-20 自贡市嘉特数控机械制造有限公司 往复走丝型电火花线切割机床的加工装置及方法
CN115723261B (zh) * 2022-09-29 2024-05-31 上海东河机电科技有限公司 一种螺旋线切割设备

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