WO2017088657A1 - Usinage à décharge électrique à coupe à fil à effilement important - Google Patents

Usinage à décharge électrique à coupe à fil à effilement important Download PDF

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Publication number
WO2017088657A1
WO2017088657A1 PCT/CN2016/105062 CN2016105062W WO2017088657A1 WO 2017088657 A1 WO2017088657 A1 WO 2017088657A1 CN 2016105062 W CN2016105062 W CN 2016105062W WO 2017088657 A1 WO2017088657 A1 WO 2017088657A1
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WIPO (PCT)
Prior art keywords
shaft
wire
follower
guide
cutting machine
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/105062
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English (en)
Chinese (zh)
Inventor
袁大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU JINMA MACHINERY AND ELECTRONIC CO Ltd
Original Assignee
SUZHOU JINMA MACHINERY AND ELECTRONIC 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
Priority claimed from CN201610915280.8A external-priority patent/CN106735647B/zh
Application filed by SUZHOU JINMA MACHINERY AND ELECTRONIC CO Ltd filed Critical SUZHOU JINMA MACHINERY AND ELECTRONIC CO Ltd
Publication of WO2017088657A1 publication Critical patent/WO2017088657A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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 present invention relates to a wire cutting machine tool, and more particularly to a large taper wire cutting machine tool that utilizes a guide to limit electrode wire jitter.
  • the large taper cutting device of the wire cutting machine of the prior art generally comprises a storage tray, a wire carriage, a U-direction moving mechanism and a V-direction moving mechanism, wherein the wire-traveling frame mainly comprises an upper rotating shaft, a lower rotating shaft and a connecting upper and lower rotating shafts.
  • the multi-section connecting rod is composed, and the wire guiding work of the wire is mainly realized by a plurality of godets.
  • the utility model patent of CN2402434Y wherein the godet wheel comprises a front upper guide wheel disposed at the front end portion of the upper shaft, a rear upper guide wheel disposed at the rear end portion of the upper shaft, and a front end portion of the lower shaft.
  • the front lower guide wheel and the rear lower guide wheel disposed at the rear end of the lower shaft.
  • the upper rotating shaft is driven by the U-direction moving mechanism and the V-direction moving mechanism to cause a large angle deflection of the wire guide frame, and at this time, the wire electrode is in close contact with the inner wall of the guide, and the electrode
  • the wire forms a certain angle with the axis of the guide wire hole on the guide, which causes the wire to cut the guide, so that the guide also becomes the object to be cut, which seriously affects the service life of the guide.
  • the wire will be curled and broken, resulting in a significant reduction in the service life of the wire.
  • a large-taper wire cutting machine tool comprising a base, a storage tray, a wire carriage, and a U-direction driving device, the wire carriage comprising:
  • An upper guide rotatably disposed at a front end portion of the upper rotating shaft, the upper guide having an upper guide wire hole for the wire to pass through;
  • An upper follower connected to the upper guide and the front portion of the upper follower shaft; the U-direction-V driving device drives the upper shaft or the upper follower shaft to move in the front-rear direction or the left-right direction During the process of moving the electrode wire at a large angle, the upper follower shaft drives the upper guide to rotate by the upper follower device, so that the wire passing through the upper guide wire hole always coincides with the axial line of the upper guide wire hole.
  • a lower guide rotatably disposed at a front end portion of the lower rotating shaft, the lower guide having a lower guide wire hole for the wire to pass through;
  • the U-direction-V driving device drives the upper shaft or the upper follower shaft to move in the front-rear direction or the left-right direction
  • the lower follower shaft drives the lower guide to rotate by the lower follower device, so that the wire passing through the lower guide wire hole always coincides with the axial line of the lower guide wire hole.
  • connecting rod is rotatably connected to the upper follower shaft, the upper rotating shaft, the lower rotating shaft and the lower following shaft; respectively, at a rear portion of the upper follower shaft and a rear portion of the upper rotating shaft
  • the length of the link between the portions is variably disposed, and the length of the link between the rear portion of the upper rotating shaft and the rear portion of the lower rotating shaft is variably disposed at a rear portion of the lower rotating shaft
  • the length of the link between the rear portions of the follower shaft is variably set;
  • the wire After passing through the front upper guide wheel, the wire passes through the upper guide wire hole and the lower guide wire hole, and then passes through the front lower guide wheel; the wire electrode between the front upper guide wheel and the front lower guide wheel, The axial line of the upper guide wire hole and the axial line of the lower guide wire hole overlap as much as possible, and the electrode wire between the upper guide wire hole and the lower guide wire hole is connected with the wire
  • the axis of the rod is as parallel as possible. In the case of large taper machining, the coincidence of the three is a theoretical design overlap. In fact, the electrode wire is often slightly offset from the upper wire hole because the wire is slightly radially shaken during the machining of the workpiece.
  • the axial line of the lower guide wire hole but the upper guide and the lower guide will constrain the electrode wire to coincide with the axial line of the upper guide wire hole and the axial line of the lower guide wire hole as always.
  • the axial center line of the upper guide wire hole and the axial center line of the lower guide wire hole may be slightly deviated from the wire of the segment due to the installation error, but the theoretical design should make the axial lines of the three are always coincident.
  • the present invention has the following advantages over the prior art: when the large taper wire cutting machine tool of the present invention processes the workpiece to be processed, the wire guide can move in the front-rear direction or in the left-right direction, thereby The workpiece is subjected to a large taper cut after the wire is deflected to a set angle.
  • the electrode wires which are guided through the upper upper guide wheel and penetrate the upper guide and the lower guide into the front lower guide wheel always extend in the same straight line, the wire and the upper guide, Only slight friction in the concentric direction occurs between the lower guides, so that the upper guide and the lower guide always have a stable and reliable guiding and positioning of the electrode wires, thereby avoiding the guides caused by the cutting guides and the wire wires being crimped and broken. Damage and shortened wire life, which improves machining accuracy and machined surface finish.
  • Figure 1 is a left side view showing the structure of the large-tapered wire cutting machine of Embodiment 1;
  • Figure 2 is a left side view of the schematic view of the large-tapered wire-cutting machine of the first embodiment after the up-axis axial movement;
  • Figure 3 is a left side view of the schematic view of the large-tapered wire-cutting machine of the first embodiment after the up-axis axial rear movement;
  • Figure 4 is a front elevational view showing the structure of the large-taper wire cutting machine of the first embodiment
  • Figure 5 is a front elevational view showing the schematic diagram of the upper-rotation axial left movement in the large-tapered wire-cutting machine of the first embodiment
  • Figure 6 is a front elevational view showing the schematic diagram of the upward-rotation axial right movement in the large-tapered wire-cutting machine tool of Embodiment 1;
  • Figure 7 is a left side view showing the structure of the wire cutting machine tool of Embodiment 1;
  • Figure 8 is a left side elevational view of the wire guide of Figure 7 after being cut away;
  • Figure 9 is an enlarged plan view of the wire guide of Figure 7;
  • Figure 10 is a cross-sectional view of the wire guide of Figure 9;
  • Figure 11 is a left side view of the wire-cutting machine tool of Embodiment 1 after the up-axis axial front movement;
  • Figure 12 is a left side elevational view, partly in section, of the wire guide of Figure 11;
  • Figure 13 is an enlarged plan view of the wire guide of Figure 11;
  • Figure 14 is a cross-sectional view of the wire guide of Figure 13;
  • Figure 15 is a left side view of the wire-cutting machine of the first embodiment after the up-axis axial rear movement;
  • Figure 16 is a left side elevational view of the wire guide of Figure 15 after being cut away;
  • Figure 17 is an enlarged plan view of the wire guide of Figure 15;
  • Figure 18 is a cross-sectional view of the wire guide of Figure 17;
  • Figure 19 is a front elevational view of the wire-cutting machine tool of the first embodiment after the up-axis axial left movement;
  • Figure 20 is a front elevational view of the wire guide of Figure 19 after a cross-sectional view
  • Figure 21 is an enlarged front elevational view of the wire guide of Figure 19;
  • Figure 22 is a cross-sectional front view of the wire guide of Figure 21;
  • Figure 23 is a front elevational view of the wire-cutting machine tool of the first embodiment after the up-axis axial right movement;
  • Figure 24 is a cross-sectional view of the wire guide of Figure 23;
  • Figure 25 is an enlarged plan view of the wire guide of Figure 23;
  • Figure 26 is a cross-sectional view of the wire guide of Figure 25;
  • Figure 27 is a perspective view of the wire-cutting machine tool of Embodiment 1 after the up-axis is moved forward and to the right;
  • Figure 28 is an enlarged plan view of the wire guide of Figure 27;
  • Figure 29 is a perspective view of the wire-cutting machine tool of Embodiment 1 after moving up and to the right;
  • Figure 30 is an enlarged plan view of the wire guide of Figure 29;
  • Figure 31 is a perspective view of the wire cutting machine tool of the first embodiment when the upper rotation axis is moved forward and leftward;
  • Figure 32 is an enlarged plan view of the wire guide of Figure 31;
  • Figure 33 is a perspective view of the wire-cutting machine tool of Embodiment 1 when it is moved up and down to the left;
  • Figure 34 is an enlarged plan view of the wire guide of Figure 33;
  • 35, 36, 37, 38, and 39 are structural schematic views of the large taper wire cutting machine of Examples 2, 3, 4, 5, and 6, respectively.
  • a large taper wire cutting machine tool includes a base 30, a storage tray 1, a wire carriage 32, and a U-direction drive device 26, the U-direction drive device 26 is connected to the wire guide 32 for driving the wire carriage 32 to move.
  • the wire guide 32 includes an upper rotating shaft 2 extending in the front-rear direction, an upper follower shaft 3 parallel to the upper rotating shaft 2, a lower rotating shaft 4 parallel to the upper rotating shaft 2, and a lower parallel to the lower rotating shaft 4.
  • the axis line of the upper shaft 2, the axis line of the lower shaft 4, the axis line of the upper follower shaft 3, and the axis line of the lower follower shaft 5 are located on the same plane.
  • the wire guide 32 further includes an upper guide 6 rotatably provided at a front end portion of the upper rotating shaft 2, a lower guide 7 rotatably provided at a front end portion of the lower rotating shaft 4, and a front end portion provided on the upper follower shaft 3 a front upper guide wheel 10, a front lower guide wheel 12 disposed at a front end portion of the lower follower shaft 5,
  • the upper guide 6 has an upper guide wire hole 61 for the electrode wire 18 passing therethrough
  • the lower guide 7 has a lower guide wire hole 71 for the electrode wire 18 passing therethrough, and the wire electrode 18 passes the front upper guide wheel. After 10, it passes through the upper guide wire hole 61, the lower guide wire hole 71, and then passes through the front lower guide wheel 12.
  • the wire carriage 32 further includes an upper follower device 8 and a lower follower device 9, wherein the upper follower device 8 is connected to the upper portion of the upper guide 6 and the upper follower shaft 3, and the upper follower device 8 is used for driving
  • the guide 6 is rotated such that the axial line of the upper guide wire hole 61 coincides with the electrode wire in the hole as much as possible
  • the lower follower 9 connects the lower guide 7 and the front portion of the lower follower shaft 5, and the lower follower
  • the device 9 is used to drive the lower guide 7 to rotate such that the axis of the lower guide wire hole 71 coincides with the electrode wire in the hole as much as possible.
  • the wire guide 32 further includes a connecting rod 14 rotatably connected to the upper follower shaft 3, the upper rotating shaft 2, the lower rotating shaft 4, and the lower follower shaft 5, respectively, and the rear portion of the upper follower shaft 3
  • the length of the link 14 between the rear portion of the upper shaft 2 and the rear portion of the lower shaft 4 is variably disposed, and the length of the link 14 between the rear portion of the upper shaft 2 and the rear portion of the lower shaft 4 is variably disposed, and the rear portion of the lower shaft 4
  • the length of the link 14 between the rear portion of the lower follower shaft 5 is variably set.
  • the axial wire of the segment of the wire electrode 18 and the upper wire guide hole 61 between the front upper guide wheel 10 and the front lower guide wheel 12 The axial lines of the guide wire holes 71 overlap as much as possible, and the wire 18 between the upper wire guide hole 61 and the lower wire guide hole 71 is parallel to the axis line of the link 14.
  • the U-to-V drive unit 26 is coupled to the upper shaft 2 to move the upper shaft 2 in the left-right direction (i.e., the V direction) or the front-rear direction (i.e., the U direction). , and then drive the wire frame 32 to move.
  • the distance between the axis line of the upper shaft 2 and the axis line of the lower shaft 4 is variably provided by the U-to-V drive unit 26.
  • the upper follower shaft 3 is slidably coupled to the upper shaft 2 in the direction of its axis, and the distance between the axis of the upper follower shaft 3 and the axis of the upper shaft 2 is constantly constant. Settings.
  • the distance between the axis line of the upper follower shaft 3 and the axis line of the upper shaft 2 is constantly set, which means that the U-direction-V drive is driven during the machining of the workpiece by the on-line cutting machine tool.
  • the distance between the axis line of the upper follower shaft 3 and the axis line of the upper shaft 2 remains unchanged; and when the workpiece is not processed, the upper follower shaft 3
  • the axial line and the axis of the upper shaft 2 can be set to be adjustable or not adjustable for different processing applications. If the distance adjustable structure is used, the distance lock is still needed after the distance adjustment is completed to ensure the distance between the axis line of the upper follower shaft 3 and the axis line of the upper shaft 2 during the machining of the workpiece. Constantly unchanged.
  • the upper sliding shaft 20 is fixedly connected to the upper sliding shaft 3, and the upper rotating shaft 2 is fixedly disposed with an upper sliding rail 19 extending along the axial direction thereof.
  • the upper sliding seat 20 is slidably disposed on the upper sliding shaft 20. On the slide rail 19.
  • the lower follower shaft 5 is slidably coupled to the lower shaft 4 in the direction of its axis, and the distance between the axis of the lower follower shaft 5 and the axis of the lower shaft 4 is constantly set.
  • the distance between the axis line of the lower follower shaft 5 and the axis line of the lower shaft 4 is constantly set, specifically, the U-direction-direction drive device during the processing of the workpiece by the on-line cutting machine tool.
  • the distance between the axis line of the lower follower shaft 5 and the axis line of the lower shaft 4 remains unchanged; and when the workpiece is not machined, the axis of the lower follower shaft 5 Heart
  • the distance between the line and the axis of the lower shaft 4 can be set to be adjustable or not adjustable for different processing applications. If a distance-adjustable structure is used, the distance lock is still required after the distance adjustment is completed to ensure the distance between the axis line of the lower follower shaft 5 and the axis line of the lower shaft 4 during the machining of the workpiece. Constantly unchanged.
  • the lower follower shaft 5 is fixedly connected with a lower sliding seat 22, and the lower rotating shaft 4 is fixedly disposed with a lower sliding rail 21 extending along the axial direction thereof, and the sliding base 22 is slidably disposed on the lower sliding rail 21 .
  • the wire frame 32, the rear part of the upper rotating shaft 2, the rear part of the lower rotating shaft 4, the rear part of the upper follower shaft 3, and the rear part of the lower follower shaft 5 are connected to each other through a respective rotating shaft
  • the rods 14 are rotatably connected, and the axial lines of the respective rotating shafts are perpendicular to the axial line of the connecting rod 14 and the axial line of the upper rotating shaft 2.
  • the link 14 between at least one pair of rods is at least two sections along
  • the telescopic rod of the connecting rod 14 is slidably connected in the axial direction.
  • the connecting rod 14 is slidably disposed along the axial direction of the connecting rod 14 to at least one connecting rod sliding sleeve, and the at least one connecting rod sliding sleeve passes through
  • the rotating shaft is rotatably coupled to the rear of the upper shaft 2 or the rear of the lower shaft 4 or the rear of the upper follower shaft 3 or the rear of the lower follower shaft 5.
  • three connecting rod sliding sleeves 15, 16, 17 are slidably disposed on the connecting rod 14 along the axial direction of the connecting rod 14, and the three connecting rod sliding sleeves 15, 16, 17 respectively pass through the respective
  • the rotating shaft is rotatably coupled to the rear portion of the upper follower shaft 3, the rear portion of the upper rotating shaft 2, and the rear portion of the lower follower shaft 5.
  • the link 14 may be a plurality of links, and the plurality of links 14 are disposed in parallel or in the same axis, and the link 14 may also be a coaxial one.
  • the connecting rod 14 is a rod member, and the upper rotating shaft 2, the lower rotating shaft 4, the upper follower shaft 3 and the lower follower shaft 5 are respectively rotatably connected with the connecting rod 14 Among the rotating shafts, two of the rotating shafts are lockedly disposed in the axial movement of the rotating shaft, and the other two rotating shafts are freely movable in the axial direction of the rotating shaft, so that it is convenient to connect during the actual installation process. Installation of the rod 14.
  • the rotating shaft of the upper rotating shaft 2, the lower rotating shaft 4 and the connecting rod 14 is rotatably connected in the axial direction thereof, and the upper moving shaft 3, the lower following shaft 5 and the connecting rod 14 are The rotationally coupled rotating shaft is movably disposed in its axial direction.
  • the axis of the rotating shaft of the upper guide 6 and the upper rotating shaft 2 is perpendicular to the axial line of the upper rotating shaft 2 and the axial line of the connecting rod 14, and the upper follower 8 is used for When the upper follower shaft 3 moves in the front-rear direction with respect to the upper rotating shaft 2, the upper guide 6 is rotated.
  • the follower device 8 includes an upper follower link 82 rotatably coupled to the front portion of the upper follower shaft 3 by a rotating shaft, the rotating shaft
  • the axis line is perpendicular to the axis line of the upper follower shaft 3 and the axis line of the connecting rod 14, and the length of the upper follower link 82 between the front portion of the upper follower shaft 3 and the upper guide 6 is variably Settings.
  • the upper follower link 82 can adopt at least two telescopic rods slidably connected along the longitudinal direction of the upper follower link 82, as shown in FIG. 39;
  • the link 82 is slidably disposed at least one of the two members of the front portion of the upper follower shaft 3 and the upper guide 6.
  • the lower portion of the upper follower link 82 is fixedly coupled to the upper guide 6, specifically, the upper guide 6 and the front end portion of the upper shaft 2 are rotated.
  • the shaft is rotatably coupled, and the upper guide 6 is fixedly coupled to the rotating shaft, which is in turn fixedly coupled to the lower portion of the upper follower link 82.
  • the upper portion of the upper follower link 82 is slidably disposed on the front portion of the upper follower shaft 3.
  • the front portion of the upper follower shaft 3 is rotatably coupled to the upper sliding sleeve 81 and the upper follower link 82.
  • the upper portion is slidably disposed in the upper sliding sleeve 81.
  • an upper follower shaft extending rod 83 extending in the radial direction thereof is fixedly coupled to the front portion of the upper follower shaft 3, and the upper follower link 82 is rotatably coupled to the upper portion via the rotating shaft
  • the follower shaft extends the front of the rod 83 to prevent the upper follower 8 from interfering with other rods on the wire guide 32.
  • the axis of the rotating shaft of the lower guide 7 and the lower rotating shaft 4 is perpendicular to the axial line of the lower rotating shaft 4 and the axial line of the connecting rod 14, and the lower follower 9 is used.
  • the lower follower shaft 5 moves in the front-rear direction with respect to the lower shaft 4, the lower guide 7 is rotated.
  • the lower follower 9 includes a lower follower link 92 rotatably coupled to the front of the lower follower shaft 5 by a rotational axis, the axis of the rotary shaft
  • the core line is perpendicular to the axis line of the lower follower shaft 5 and the axis line of the link 14, and the length of the lower follower link 92 between the front portion of the lower follower shaft 5 and the lower guide 7 is variably set.
  • the lower follower link 92 can be disposed as a telescopic rod that is slidably connected along at least two sections along the length direction of the lower follower link 92, as shown in FIG. 39;
  • the link 92 is slidably disposed at least one of the two members of the front portion of the lower follower shaft 5 and the lower guide 7.
  • the upper portion of the lower follower link 92 is fixedly coupled to the lower guide 7, specifically, the lower guide 7 and the front end portion of the lower shaft 4 are rotated.
  • the shaft is rotatably coupled, and the lower guide 7 is fixedly coupled to the rotating shaft, which is in turn fixedly coupled to the upper portion of the lower follower link 92.
  • the lower portion of the lower follower link 92 is slidably disposed on the front portion of the lower follower shaft 5.
  • the front portion of the lower follower shaft 5 is rotatably coupled to the lower sleeve 91, and the lower portion of the lower follower link 92. It is slidably disposed in the sliding sleeve 91.
  • the front portion of the lower follower shaft 5 is also fixedly coupled with a lower follower shaft extending along the radial direction thereof.
  • the lever 93 and the lower follower link 92 are rotatably coupled to the front portion of the lower follower shaft extension rod 93 via a rotating shaft.
  • the rear portion of the lower shaft 4 is provided with a wire introduction wheel 24 and a wire take-up wheel 25.
  • the frame 30 at the rear of the wire introduction wheel 24 is further provided with a pressure guide roller 23,
  • a rear upper guide wheel 11 is provided at the rear of the follower shaft 3, and a rear lower guide wheel 13 is provided at the rear of the lower follower shaft 5, and the electrode wire 18 from the storage tray 1 passes through the lower end of the guide groove of the pressure guide pulley 23.
  • the lower end portion of the guide groove of the wire feeding wheel 24 is entered, and then the rear upper guide wheel 11, the front upper guide wheel 10, the upper guide 6, the lower guide 7, and the front lower guide wheel are sequentially entered on the wire guide 32. 12.
  • the rear lower guide wheel 13 passes through the upper end of the guide groove of the wire take-up wheel 25 and enters the storage tray 1.
  • the tangent of the lower end portion of the guide groove of the wire introduction wheel 24 and the tangent of the upper end portion of the guide groove of the wire take-up wheel 25 should be as close as possible and as close as possible to the axis of the lower shaft 4;
  • a length of the wire between the wire guide wheel 23 and the wire introduction wheel 24 should also be parallel and close to the axis of the lower shaft 4 as much as possible;
  • the axial line of the segment and the lower shaft 4 are also as close as possible and parallel.
  • the as close as possible and parallel to each other is a design concept, because the electrode on the wire guide 32 is moved on the upper portion of the wire carriage 32, that is, when the upper shaft 2 moves in the left-right direction (ie, the V direction).
  • the wire 18 is rotated about the lower shaft 4, and if it is a coincident design, the change in the total length of the wire when the wire carriage 32 is moved in the V direction is small, and the actual product is as close as possible and does not coincide.
  • the situation will be more, the general distance is best but not limited to within 2.5mm.
  • the wire cutting machine further includes a cantilever 31 which is disposed on the base 30 and is driven by the U-V to the driving device 26 to be movable in the front-rear direction (U-direction) and the left-right direction (V-direction).
  • the upper shaft 2 can be wound around the axis
  • the heart line is rotatably disposed at a lower portion of the cantilever 31, and the lower shaft 4 is rotatably provided on the base 30 about its own axis.
  • the cantilever 31 drives the upper rotating shaft 2 to move back and forth or move left and right correspondingly, thereby driving the wire carriage 32 to move.
  • the upper guide 6 and the lower guide 7 both extend in the up and down direction, and are located on the front upper guide wheel.
  • the axial line between the electrode wire 18 and the upper guide wire hole 61 between the front and lower guide rollers 12 and the axial center line of the lower guide wire hole 71 are substantially coincident, and the axial wire of the segment of the wire electrode 18 and the connecting rod 14
  • the lines are parallel, and the wire 18 is only slightly in contact with the upper guide 6 and the lower guide 7, so that the upper guide 6 and the lower guide 7 maintain a stable and reliable guide to the wire 18. Position to prevent it from shaking.
  • the U-direction-V drive device 26 drives the upper shaft 2 to move forward.
  • the wire frame 32 moves. Specifically, the distance between the rear end of the upper shaft 2 and the rear end of the lower shaft 4 becomes longer as the upper shaft 2 moves forward, and the upper portion of the link 14 moves forward and slides relative to the link sleeve 16, while the link 14 also drives The upper follower shaft 3 moves forward relative to the upper shaft 2 and drives the lower follower shaft 5 to move rearward relative to the lower shaft 4.
  • the upper follower link 82 of the upper follower device 8 slides relative to the upper sliding sleeve 81 and simultaneously drives the upper sliding sleeve 81 and the upper guide 6 to be clockwise.
  • the flip angle thereof coincides with the flip angle of the link 14;
  • the lower follower link 92 of the lower follower 9 slides relative to the slide sleeve 91 and drives the slide sleeve 91 to rotate clockwise in synchronism with the lower guide 7
  • the flip angle also coincides with the flip angle of the link 14.
  • the amplitude of the forward direction of the upper guide 6 and the lower guide 7 always coincides with the inversion range of the link 14, and is located between the front upper guide wheel 10 and the front lower guide wheel 12.
  • the axial line of the wire electrode 18, the upper wire guide hole 61 and the axis line of the lower wire guide hole 71 are always substantially coincident, and the wire electrode 18 of the segment is parallel with the axis line of the connecting rod 14, so that the upper guide 6 and the lower guide 7 maintain a stable and reliable guiding and positioning of the wire electrode 18, effectively preventing the wire electrode 18 from shaking.
  • the upper shaft 2 is driven backward by the U-to-V driving device 26.
  • the movement causes the wire guide 32 to move backward.
  • the link 14 is deflected rearward to drive the upper follower shaft 3 to move backward and the lower follower shaft 5 to move forward, and the upper follower link 82 and the lower follower link 92 are respectively counterclockwise.
  • the flipping and flipping angle coincides with the flip angle of the link 14, such that the upper guide 6 and the lower guide 7 are also flipped counterclockwise by the same angle, between the front upper guide wheel 10 and the front lower guide wheel 12.
  • the axial line of the electrode wire 18, the upper guide wire hole 61 and the axial line of the lower guide wire hole 71 are always substantially coincident, and the wire electrode 18 of the segment is parallel with the axial line of the connecting rod 14, so that the upper guide 6
  • the guide wire 7 is stably and reliably guided and positioned with the lower guide 7 to effectively prevent the wire 18 from being shaken.
  • the electrode wire 18 when the electrode wire 18 is inclined at a certain angle along the U and the front, the front upper guide wheel 10 and the front lower guide wheel 12 are respectively tangent to the electrode wire 18 at points D and C, due to the tangent point ( The wire 18 will be displaced as a function of the position of point D and point C in each drawing, but the displacement of the wire 18 is limited by the presence of the upper guide 6 and the lower guide 7.
  • the wire guide 32 moves forward or backward by a large angle, the displacement of the wire 18 is relatively large, and the wire 18 is offset from the upper wire hole in the upper wire guide hole 61 and the lower wire hole 71.
  • the axial center line of 61 and the axial center line of the lower guide wire hole 71 form a slight cut of the upper guide 6 and the lower guide 7.
  • the upper shaft 2 is driven to the left by the U-to-V driving device 26.
  • the wire frame 32 moves to the left. Specifically, the upper shaft 2 is moved to the left such that the upper end of the link 14 swings to the left correspondingly, and the link 14 swings to rotate the lower shaft 4 counterclockwise about its own axis, while the link 14 slides relative to the link sleeve 16.
  • Both the device 7 and the front lower guide wheel 12 are synchronized in the left and right direction, and the upper guide 6 and the lower guide 7 are always kept in the same straight line, and are located on the front upper guide wheel 10 and the front lower guide wheel 12.
  • the axial line between the wire electrode 18 and the upper wire guide hole 61 and the axial center line of the lower wire guide hole 71 are always substantially coincident, and the wire electrode 18 of the segment is parallel to the axis of the connecting rod 14 so that the upper portion The guide 6 and the lower guide 7 maintain a stable and reliable guiding and positioning of the wire 18.
  • the upper shaft 2 is driven to the right by the U-to-V drive unit 26.
  • the movement causes the wire carriage 32 to move to the right.
  • the upper shaft 2 is moved to the right such that the link 14 swings to the right correspondingly, and the link 14 swings to rotate the lower shaft 4 clockwise about its own axis, while the link 14 slides relative to the link sleeve 16.
  • the upper follower shaft 3 rotates about the axis of the lower rotating shaft 4 and is deflected to the right.
  • the lower follower shaft 5 is rotated about the axis of the lower shaft 4 to be deflected to the left.
  • the front upper guide wheel 10, the upper guide 6, the lower guide 7, and the front lower guide wheel 12 are all synchronized in the left and right direction, and the axis of the upper guide 6 and the lower guide 7 are always Keeping on the same line, the axial line of the wire 18 and the upper wire guide 61 between the front upper guide wheel 10 and the front lower guide wheel 12 substantially coincide with the axis line of the lower guide wire hole 71, and The length of the wire 18 and the connecting rod 14 The axial lines are parallel such that the upper guide 6 and the lower guide 7 maintain a stable and reliable guiding and positioning of the wire 18.
  • the U-direction-V drive device 26 is driven to move the U-axis and the V direction correspondingly, thereby correspondingly
  • the wire frame 32 realizes a composite movement of the U direction and the V direction.
  • 27, 28 shows the wire carriage 32 moving forward and to the right; as shown in Figures 29, 30, the wire carriage 32 is moved rearward and to the right; as shown in Figures 31, 32, the wire carriage 32 is shown. Moving forward and to the left; as shown in Figures 33, 34, the wire guide 32 is moved rearward and to the left.
  • the upper guide 6 and the lower guide 7 are always kept in the same direction and at the same angle as the link 14, so that it is located between the front upper guide wheel 10 and the front lower guide wheel 12.
  • the axial wire of the wire electrode 18 and the upper wire guide hole 61 and the axial center line of the lower wire guide hole 71 are substantially coincident, and the wire electrode 18 of the segment is parallel with the axis line of the connecting rod 14, thereby making the upper guide 6 and the lower guide 7 maintain a stable and reliable guiding and positioning of the wire 18, so that the guide is not severely cut, the wire is curled and broken, and the guide wire is damaged and the life of the wire is shortened, thereby improving the processing. Precision and machined surface finish.
  • the difference from the first embodiment is mainly that the arrangement structure of the link 14 is different.
  • the link between the upper shaft 2 and the upper follower shaft 3, the link between the upper shaft 2 and the lower shaft 4, and the lower shaft 4 and the lower shaft 5 The connecting rods respectively adopt telescopic rods which are slidably connected by at least two sections along the axial direction of the connecting rod 14.
  • the rear portions of the links 14 are rotatably coupled to the rear portion of the upper follower shaft 3, the rear portion of the upper shaft 2, the rear portion of the lower shaft 4, and the rear portion of the lower follower shaft 5 by respective rotation axes.
  • the difference from the first embodiment is mainly that the arrangement structure of the link 14 is different.
  • the connecting rod between the upper rotating shaft 2 and the upper follower shaft 3 and the connecting rod between the upper rotating shaft 2 and the lower rotating shaft 4 are respectively adopted by at least two sections along the axial center of the connecting rod 14
  • the telescopic rods slidably connected in the line direction are rotatably connected to the rear portion of the upper follower shaft 3, the rear portion of the upper shaft 2, and the rear portion of the lower shaft 4 by respective rotation axes.
  • the rear portion of the lower follower shaft 5 is rotatably coupled to the link sleeve 17 via a rotating shaft, and the link 14 is slidably disposed in the link sleeve 17 in the direction of its own axis.
  • the difference from the first embodiment is mainly that the arrangement structure of the link 14 is different.
  • the connecting rod between the lower rotating shaft 4 and the lower follower shaft 5 adopts a telescopic rod which is slidably connected by at least two sections along the axial direction of the connecting rod 14, and the connecting rod 14 respectively passes through the respective
  • the rotation shaft is rotatably coupled to the rear portion of the lower shaft 4 and the rear portion of the lower follower shaft 5.
  • the connecting rod between the upper rotating shaft 2 and the lower rotating shaft 4 also adopts a telescopic rod which is slidably connected by at least two sections along the axial direction of the connecting rod 14, and the rear sliding part of the upper rotating shaft 2 is rotatably connected with the connecting rod sliding sleeve 16,
  • a connecting rod sliding sleeve 15 is rotatably connected to the rear portion of the follower shaft 3, and the connecting rod 14 can be along its own axis line
  • the sliding sleeve 15 and the connecting rod sleeve 16 are slidably disposed.
  • the difference from the first embodiment is mainly in the difference in the arrangement of the links 14.
  • the connecting rod between the upper rotating shaft 2 and the lower rotating shaft 3 adopts a telescopic rod which is slidably connected by at least two sections along the axial direction of the connecting rod 14, and the connecting rods 14 respectively pass the respective rotating shafts.
  • the rear portion of the upper shaft 2 and the rear portion of the lower shaft 4 are rotatably connected.
  • a connecting rod sliding sleeve 15 is rotatably connected to the rear portion of the upper follower shaft 3, and a connecting rod sliding sleeve 17 is rotatably connected to the rear portion of the lower follower shaft 5, and the connecting rod 14 is slidably disposed along the axis line of the shaft
  • the connecting rod sleeve 15 and the connecting rod sleeve 17 are.
  • the difference from the first embodiment is mainly that the upper follower link 82 and the lower follower link 92 are arranged differently.
  • the upper follower link 82 is a telescopic rod that is slidably connected by at least two sections along the length direction of the upper follower link 82, and the lower follower link 92 is used by at least two.
  • the telescopic rod is slidably connected along the longitudinal direction of the lower follower link 92.

Landscapes

  • 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 un usinage à décharge électrique à coupe à effilement important (WEDM). Lors de l'usinage d'une pièce à travailler devant être traitée, un râtelier de fil (32) peut se déplacer dans une direction vers l'avant et vers l'arrière ou dans une direction vers la gauche et vers la droite, de façon à infléchir un fil d'électrode (18) d'un angle établi pour couper la pièce à travailler devant être traitée avec un effilement important. Pendant le mouvement du râtelier de fil (32) dans la direction vers l'avant et vers l'arrière et dans la direction vers la gauche et vers la droite, la section de fil d'électrode entre une poulie de guidage supérieure avant (10) et une poulie de guidage inférieure avant (12) et les lignes centrales des trous de guidage supérieur et inférieur sont maintenues sensiblement en coïncidence entre elles, et la section de fil d'électrode est parallèle à la ligne axiale d'une tige de liaison (14). Le fil d'électrode et les guides supérieur et inférieur (6, 7) peuvent n'avoir qu'un faible contact dans la direction coaxiale, de telle sorte que les guides supérieur et inférieur peuvent toujours produire une orientation et un positionnement stables et fiables pour le fil d'électrode, de manière à ne pas provoquer les problèmes qui sont que le guide est coupé en profondeur, et la détérioration du guide et la durée de vie raccourcie du fil d'électrode provoquées par le pincement et la rupture du fil d'électrode, de façon à améliorer ainsi la précision de traitement et le fini de surface de traitement.
PCT/CN2016/105062 2015-11-23 2016-11-08 Usinage à décharge électrique à coupe à fil à effilement important Ceased WO2017088657A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201510811687.1 2015-11-23
CN201510811687 2015-11-23
CN201610915280.8A CN106735647B (zh) 2015-11-23 2016-10-20 大锥度线切割机床
CN201610915280.8 2016-10-20

Publications (1)

Publication Number Publication Date
WO2017088657A1 true WO2017088657A1 (fr) 2017-06-01

Family

ID=58763940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/105062 Ceased WO2017088657A1 (fr) 2015-11-23 2016-11-08 Usinage à décharge électrique à coupe à fil à effilement important

Country Status (1)

Country Link
WO (1) WO2017088657A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111283285A (zh) * 2020-04-12 2020-06-16 林土炳 一种新型走丝切割机
CN112792419A (zh) * 2021-01-29 2021-05-14 南通星汉机械有限公司 一种四轴联动高精度大锥度线切割装置
CN119368846A (zh) * 2024-12-24 2025-01-28 苏州亚马森机床有限公司 扶丝装置和电火花穿孔机
CN120115768A (zh) * 2025-05-13 2025-06-10 泰州市雄峰机械有限公司 一种新型精密中走丝大摇摆线切割机床
CN120170183A (zh) * 2025-04-16 2025-06-20 苏州瑞钧智能科技有限公司 线切割调节模块、调节机构及其线切割机床和切割方法

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CN2406762Y (zh) * 2000-01-07 2000-11-22 袁大伟 线切割机床的大锥度装置
CN102806396A (zh) * 2012-09-04 2012-12-05 南京航空航天大学 电火花线切割机床六连杆大锥度随动导丝及喷水机构
CN203140912U (zh) * 2013-01-17 2013-08-21 姜多安 一种往复走丝数控线切割机床的大锥度摇摆线架机构
CN203649587U (zh) * 2013-10-21 2014-06-18 南京航空航天大学 电火花线切割机床无交切误差大锥度随动导丝及喷水机构

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Publication number Priority date Publication date Assignee Title
US5073691A (en) * 1989-04-27 1991-12-17 Mitsubishi Denki K.K. Wire electrode feeding device in wire cut electric discharge machine
CN2406763Y (zh) * 2000-01-07 2000-11-22 袁大伟 线切割机床的大锥度切割机构
CN2406762Y (zh) * 2000-01-07 2000-11-22 袁大伟 线切割机床的大锥度装置
CN102806396A (zh) * 2012-09-04 2012-12-05 南京航空航天大学 电火花线切割机床六连杆大锥度随动导丝及喷水机构
CN203140912U (zh) * 2013-01-17 2013-08-21 姜多安 一种往复走丝数控线切割机床的大锥度摇摆线架机构
CN203649587U (zh) * 2013-10-21 2014-06-18 南京航空航天大学 电火花线切割机床无交切误差大锥度随动导丝及喷水机构

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111283285A (zh) * 2020-04-12 2020-06-16 林土炳 一种新型走丝切割机
CN112792419A (zh) * 2021-01-29 2021-05-14 南通星汉机械有限公司 一种四轴联动高精度大锥度线切割装置
CN119368846A (zh) * 2024-12-24 2025-01-28 苏州亚马森机床有限公司 扶丝装置和电火花穿孔机
CN120170183A (zh) * 2025-04-16 2025-06-20 苏州瑞钧智能科技有限公司 线切割调节模块、调节机构及其线切割机床和切割方法
CN120115768A (zh) * 2025-05-13 2025-06-10 泰州市雄峰机械有限公司 一种新型精密中走丝大摇摆线切割机床

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