CN109719357B - Reciprocating wire-moving electric spark wire-electrode cutting machine tool - Google Patents
Reciprocating wire-moving electric spark wire-electrode cutting machine tool Download PDFInfo
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- CN109719357B CN109719357B CN201711021247.1A CN201711021247A CN109719357B CN 109719357 B CN109719357 B CN 109719357B CN 201711021247 A CN201711021247 A CN 201711021247A CN 109719357 B CN109719357 B CN 109719357B
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Abstract
The invention discloses a reciprocating wire-moving electric spark wire-electrode cutting machine tool, which comprises a wire storage mechanism (400) and a wire conveying mechanism (500), wherein the wire conveying mechanism (500) comprises a first main guide wheel (505), a second main guide wheel (506) and a first guide wheel (525), in a space rectangular coordinate system taking an X, Y, Z axis as a coordinate axis, a wire electrode (600) can sequentially bypass the first guide wheel (525), the first main guide wheel (505) and the second main guide wheel (506) from a wire storage barrel (402), and the wire electrode (600) positioned between the first main guide wheel (505) and the second main guide wheel (506) inclines relative to the horizontal plane or is parallel to the horizontal plane. The reciprocating wire-moving electric spark wire-electrode cutting machine tool can realize transverse cutting of the quick wire-moving wire-electrode cutting machine tool, so that the phenomenon that a workpiece clamps a wire electrode along the fracture of a cutting seam before cutting is finished can be avoided.
Description
Technical Field
The invention relates to a reciprocating wire-moving electric spark wire-electrode cutting machine tool.
Background
At present, the wire cut electric discharge machine is increasingly widely applied in the manufacturing industry. The fast wire cutting machine tool is used as an important branch of an electric spark machine tool and has the advantages of high machining efficiency, low machining cost and the like. Fig. 1 shows a reciprocating wire-conveying mechanism widely used in the fast wire-moving linear cutting machine. In the mechanism, the electrode wire wound on the wire storage barrel 10 finally returns to the wire storage barrel through the guide wheel 43, the guide wheel 45, the main guide wheel 41, the main guide wheel 21, the guide wheel 25 and the guide wheel 23, and a circulation loop of the reciprocating motion of the electrode wire is formed. A tension mechanism for applying tension to the wire electrode is arranged in the loop. The weight 116 is connected to the idler mounting plate 111 via a rope 115 passing over the pulley 113. The guide wheel 45 and the guide wheel 25 are fixed on the guide wheel mounting plate 111 and connected with the rail slider 112. The weight 116 drives the guide wheel mounting plate 111 to move back and forth along the guide rail 114 under the action of its own gravity. The weight 116 is composed of a plurality of removable weight blocks, and the tension acting on the wire electrode 3 can be adjusted by increasing or decreasing the number of the weight blocks.
The wire-moving mechanism is generally used in a fast-moving wire machine for longitudinal cutting, and the general arrangement of the machine is shown in fig. 2. The cutting plane of the workpiece is perpendicular to the table plane when the machine tool is used for machining. When the workpiece is close to cutting off, the fine connection between the two parts of the cut workpiece is not enough to bear the gravity of the workpiece, so that the workpiece is broken along the cutting seam and the cutting wire is clamped off. Therefore, before cutting, the traditional fast wire-moving machine tool usually fixes the part of the workpiece to be fallen in advance by using magnet or glue, so as to avoid the workpiece from directly falling off and clamping the metal wire. If the workpiece shown in fig. 3 is cut, the fallen workpiece part is difficult to recover, the process of the workpiece entering the next station is complicated, and the manual intervention degree is high. This seriously affects the mass production of the work pieces.
Disclosure of Invention
In order to solve the problem that a workpiece is easy to clamp and break a wire electrode, the invention provides a reciprocating wire-moving electric spark linear cutting machine, which can realize transverse cutting of a quick wire-moving electric spark linear cutting machine, and avoids the phenomenon that the workpiece clamps and breaks the wire electrode along a cutting seam before cutting is finished. Meanwhile, the part of the falling workpiece can vertically fall into a recovery box which is arranged below the workpiece in advance under the action of self weight and is directly conveyed to the next station through manpower or a mechanical arm, so that smooth transmission of the workpiece among stations of the production line is realized.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a reciprocal wire cut electrical discharge machining bed of walking, including storing silk mechanism and fortune silk mechanism, it contains stores the silk bucket to store silk mechanism, fortune silk mechanism contains first leading wheel, second leading wheel and first leading wheel, in the space rectangular coordinate system who uses X, Y, Z axles as the coordinate axis, the axis of first leading wheel and the axis of second leading wheel all are on a parallel with the Y axle, the wire electrode can follow and store the silk bucket and go around first leading wheel in proper order, return again and store the silk bucket behind first leading wheel and the second leading wheel, the wire electrode that is located between first leading wheel and the second leading wheel inclines or is on a parallel with the horizontal plane for the horizontal plane.
The invention has the beneficial effects that: the wire conveying mechanism of the rapid-wire-moving reciprocating wire-moving electric spark wire-cutting machine tool is simple in structure, economical and reliable, changes the cutting section of the traditional rapid-wire-moving machine tool from the longitudinal direction to the transverse direction, and can be used for immersion machining. Due to the change of the cutting plane, the electrode wire is prevented from being clamped and broken before the cutting of the workpiece is finished, and meanwhile, convenience is provided for recycling the falling part of the workpiece. The mass production of the workpieces is realized, the production efficiency of the machine tool is improved, and the economic benefit is improved for customers.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic diagram of a conventional wire conveying mechanism.
Fig. 2 is a schematic view of a conventional wire conveying mechanism in a use state.
Fig. 3 is a schematic view of the structure of a tool to be processed.
Fig. 4 is a perspective view of the wire storing mechanism and the wire transporting mechanism of the reciprocating wire-cut electric discharge machine according to the present invention.
Fig. 5 is a cross-sectional view of a wire storing mechanism of the reciprocating wire electric discharge machine according to the present invention.
Fig. 6 is a rear perspective view of the wire storing mechanism of the reciprocating wire electric discharge machine according to the present invention.
FIG. 7 is a schematic diagram of the position relationship between the detecting block and the limiting block.
Fig. 8 is a perspective view of the wire feeding mechanism of the reciprocating wire electric discharge machine according to the present invention.
10. Cutting a plane; 20. a workpiece drop-off portion; 30. a workpiece holding portion;
400. a wire storage mechanism; 401. a drive unit; 402. a silk storage barrel; 403. a wire storage barrel slide plate base; 404. a wire storage barrel sliding plate; 405. a guide rail; 406. a slider; 407. a coupling; 408. a small belt pulley; 409. a lead screw; 410. a large belt pulley; 411. a synchronous belt; 412. a bearing seat; 413. a nut; 414. a nut seat; 415. a filament storage barrel seat; 416. a bull gear; 417. an elastic member; 418. a pinion gear;
421. a detection block; 422. a limiting block; 423. adjusting the screw; 424. a plain screw; 425. a support; 426. a proximity switch; 427. a contact switch; 428. a plate;
500. a wire conveying mechanism; 501. a main wire conveying plate; 502. a mounting seat; 503. a wire feeding motor assembly; 504. a forward wire conveying plate; 505. a first main sheave; 506. a second main sheave; 507. a main guide wheel seat; 508. a wire guide nozzle assembly; 509. a conductive block; 510. a wire clamp;
521. a fifth guide wheel; 522. a first fixed guide wheel; 523. a first movable guide wheel; 524. a second guide wheel; 525. a first guide wheel; 526. a third guide wheel; 527. a fourth guide wheel; 528. a second movable guide wheel; 529. a second fixed guide wheel; 530. a sixth guide wheel; 531. a seventh leading wheel;
550. a fixed pulley; 551. a wheel axle; 552. mounting a plate; 553. a rope; 554. a pulley seat; 555. a weight; 556. a slide rail; 557. a slider; 558. a pin;
600. and (4) electrode wires.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A reciprocating wire-moving electric spark wire cutting machine comprises a wire storage mechanism 400 and a wire conveying mechanism 500, wherein the wire storage mechanism 400 comprises a wire storage barrel 402, the wire conveying mechanism 500 comprises a first main guide wheel 505, a second main guide wheel 506 and a first guide wheel 525, in a space rectangular coordinate system taking X, Y, Z axes as coordinate axes, the axis of the first main guide wheel 505 and the axis of the second main guide wheel 506 are both parallel to the Y axis, a wire electrode 600 can sequentially wind around the first guide wheel 525, the first main guide wheel 505 and the second main guide wheel 506 from the wire storage barrel 402 and then return to the wire storage barrel 402, and the wire electrode 600 positioned between the first main guide wheel 505 and the second main guide wheel 506 is inclined or parallel to the horizontal plane, as shown in figure 4.
In a rectangular spatial coordinate system with X, Y, Z axes as coordinate axes, the Z-axis direction is vertical, and the plane on which the X-axis and the Y-axis are located is horizontal. The wire electrode 600 forms a closed loop, and a section of the wire electrode 600 between the first main guide pulley 505 and the second main guide pulley 506 is a cutting section of the wire electrode 600 of the reciprocating wire-cut electric discharge machine. In the prior art, the cutting sections are all arranged along the Z-axis direction, and the invention is characterized in that the position relation of the cutting sections of the wire electrode 600 in the space is changed, namely the cutting sections of the wire electrode 600 are arranged obliquely relative to the horizontal plane in the invention, for example, the cutting sections of the wire electrode 600 are inclined 0-60 degrees relative to the horizontal plane, or the cutting sections of the wire electrode 600 are parallel to the horizontal plane. When the cutting segment of the wire electrode 600 cuts a workpiece, the cutting segment moves in a vertical direction with respect to the workpiece, thereby cutting the workpiece (at this time, the workpiece shown in fig. 3 is rotated counterclockwise by 90 ° and clamped and fixed).
In the present embodiment, it is preferable that the wire electrode 600 located between the first main guide pulley 505 and the second main guide pulley 506 is parallel to the horizontal plane, for convenience of expression and understanding, as shown in fig. 4 and 8, the wire electrode 600 located between the first main guide pulley 505 and the second main guide pulley 506 is parallel to the X-axis. The axis of the first capstan 505, the axis of the second capstan 506, and the axis of the first capstan 525 are all parallel to the Y-axis, the first capstan 505 and the second capstan 506 are at the same height, and the first capstan 525 and the yarn storage barrel 402 are above the first capstan 505.
For convenience of expression, the invention adopts a space rectangular coordinate system with X, Y, Z axes as coordinate axes, and also adopts orientation words, such as front, back, left, right, up and down. In the rectangular space coordinate system, the front direction is the same as the positive direction of the Y axis in the rectangular space coordinate system, the rear direction is the same as the negative direction of the Y axis in the rectangular space coordinate system, the left direction is the same as the negative direction of the X axis in the rectangular space coordinate system, the right direction is the same as the positive direction of the X axis in the rectangular space coordinate system, the upper direction is the same as the positive direction of the Z axis in the rectangular space coordinate system, and the lower direction is the same as the negative direction of the Z axis in the rectangular space coordinate system.
In this embodiment, the wire storage mechanism 400 further includes a wire storage barrel sliding plate base 403 and a wire storage barrel sliding plate 404, the wire storage barrel 402 is mounted on the wire storage barrel sliding plate 404 through a wire storage barrel base 415, the wire storage barrel sliding plate base 403 is provided with a guide rail 405, the guide rail 405 is arranged along the axial direction of the wire storage barrel 402, the wire storage barrel sliding plate 404 is connected with the guide rail 405 of the wire storage barrel sliding plate base 403 through a sliding block 406, the wire storage barrel 402 and the wire storage barrel sliding plate 404 are relatively fixed, and the wire storage barrel 402 and the wire storage barrel sliding plate 404 can reciprocate along the axial direction of the wire storage barrel 402. The silk storage barrel 402, the silk storage barrel sliding plate 404 and the silk storage barrel sliding plate base 403 are arranged from top to bottom in sequence.
In this embodiment, the wire storage mechanism 400 further includes a driving unit 401 and a lead screw 409, an axis of the lead screw 409 is parallel to an axis of the wire storage barrel 402, the axis of the lead screw 409 is arranged along the X-axis direction, a nut 413 is sleeved outside the lead screw 409, the nut 413 is connected and fixed with the wire storage barrel sliding plate base 403, a large pulley 410 is fixedly sleeved outside one end of the lead screw 409, a small pulley 408 is fixed at one end of the wire storage barrel 402, the large pulley 410 is connected with the small pulley 408 through a synchronous belt 411, and the driving unit 401 is connected with the other end of the wire storage barrel 402, as shown in fig. 5.
In this embodiment, a large gear 416 and a gear shaft are arranged in the wire barrel holder 415, the large gear 416 is sleeved outside the gear shaft, the gear shaft is fixedly connected with the wire barrel holder 415, the large gear 416 can rotate around the gear shaft, a groove for rotating the large gear 416 is formed in the surface of the large gear 416, the axis of the large gear 416 is parallel to the axis of the wire barrel 402, the large gear 416 can also move along the axis direction of the gear shaft, that is, the large gear 416 can move in the left-right direction in fig. 5, an elastic component 417 for axially resetting the large gear 416 is arranged outside the gear shaft, a small gear 418 is further fixed at one end of the wire barrel 402, and when the large gear 416 moves along the axis direction of the gear shaft, the large gear 416 can be meshed with the small gear 418.
Specifically, the driving unit 401 is a motor, and the elastic member 417 is a spring. The wire storage mechanism 400 mainly comprises a driving unit 401, a wire storage barrel 402, a wire storage barrel sliding plate base 403, a wire storage barrel sliding plate 404 and a transmission mechanism thereof. The guide rail 405 is fixed on the base of the wire storage barrel sliding plate, and the wire storage barrel sliding plate 404 is connected with the sliding block 406 through a screw. The drive unit 401 is coupled to the right end of the wire storage barrel 402 by a coupling 407, as shown in FIG. 5, which are both secured to a wire storage barrel slide 404. The left end of the wire storage barrel 402 is fixed with a small belt pulley 408, and is connected with a large belt pulley 410 fixed at the end of a lead screw 409 through a synchronous belt 411. The lead screw 409 is fixed on the wire storage barrel sliding plate 404 through a bearing seat 412, and the nut 413 is fixed on the wire storage barrel sliding plate base 403 through a nut seat 414. When the driving unit 401 (motor) rotates, the wire storage barrel 402 rotates along with the driving unit, and the lead screw 409 below the wire storage barrel sliding plate 404 is driven to rotate through the synchronous belt 411, so that the wire storage barrel sliding plate 404 moves transversely (in the direction of the X axis) along the guide rail 405. Therefore, in the wire storing mechanism 400, the driving unit 401 is a power source for rotating the wire storing barrel 402 and a power source for transversely moving the wire storing barrel sliding plate 404. The handle is inserted into the groove on the end face of the large gear 416 fixed on the wire storage barrel seat 415, the large gear 416 is pressed with force, the elastic component 417 is compressed, and the large gear 416 can be meshed with the small gear 418 fixed at the left end of the wire storage barrel 402. The handle is rotated and the filament storage barrel 402 rotates therewith. This function is used for manual feeding of the filament storage barrel 402.
By reasonably designing the lead of the lead screw 409 and the transmission ratio of the large belt wheel 410 and the small belt wheel 408, the displacement of the transverse movement of the wire storage barrel sliding plate 404 can be accurately controlled when the wire electrode 600 is wound on the wire storage barrel 402 for each circle. Since this displacement determines the distance between the wire electrode 600 and the wire storage barrel 402, care should be taken in the design to match the widest wire electrode diameter selected for the machine tool. Let the pitch circle diameter of the small pulley 408 be d1The pitch circle diameter of the large pulley 410 is d2If the lead of the lead screw 409 is p, the displacement x of the wire electrode 600 in the transverse direction of the wire storage barrel sliding plate 404 per winding of the wire storage barrel 402 can be calculated by equation 1. The wire electrode 600 can be continuously recycled due to the transverse reciprocating movement of the wire storage barrel sliding plate 404.
The above equation 1 is:
wherein x is in mm; d1In units of mm; d2In units of mm; of pIn mm.
The wire storage mechanism 400 is further provided with a stroke protection device, wherein the detection block 421 and the limit block 422 are respectively fixed on a bracket 425 through an adjusting screw 423 and a common screw 424, and the bracket 425 is fixed on the wire storage barrel sliding plate 404. Proximity switch 426 and contact switch 427 are mounted on plate 428, and plate 428 is secured to the wire bucket slide base 403. Along with the transverse reciprocating movement of the wire storage barrel sliding plate 404, the detection block 421 and the limiting block 422 also do transverse reciprocating movement. In the moving process, when the left proximity switch 426 detects the left detection block 421, the left proximity switch 426 sends a signal, the wire storage barrel sliding plate 404 moves and reverses, until the right proximity switch 426 detects the right detection block 421, the right proximity switch 426 sends a signal, the wire storage barrel sliding plate 404 moves and reverses again, and the wire storage barrel sliding plate 404 reciprocates in a circulating manner to realize the left and right reciprocating movement of the wire storage barrel sliding plate 404. If the proximity switch 426 is damaged and fails to send a signal during the movement of the filament storage barrel 402, the filament storage barrel 402 will continue to move in the original direction until the contact switch 427 hits the stop block 422, and the contact switch 427 will send a signal to stop the movement of the filament storage barrel 402. The contact switch 427 is thus a safety switch for the movement of the wire barrel slide 404, preventing the wire barrel slide 404 from moving beyond a safe range causing damage to the machine tool, as shown in fig. 6 and 7.
In this embodiment, the axis of the wire storage barrel 402 is parallel to the X axis, the wire storage barrel 402 is located behind the first capstan 505, the wire storage barrel 402 is located between the first capstan 505 and the second capstan 506 along the X axis, the second capstan 524 is located between the first capstan 525 and the wire storage barrel 402, the third capstan 526 and the fourth capstan 527 are located between the second capstan 506 and the wire storage barrel 402, and the wire electrode 600 can go from the wire storage barrel 402 and sequentially go around the second capstan 524, the first capstan 525, the first capstan 505, the second capstan 506, the third capstan 526, and the fourth capstan 527 and then return to the wire storage barrel 402.
In this embodiment, the first guide wheel 525 is located directly above the first main guide wheel 505, the third guide wheel 526 is located directly above the second main guide wheel 506, the first main guide wheel 505 and the second main guide wheel 506 are arranged in bilateral symmetry and are mirror images of each other, the axis of the first guide wheel 525 and the axis of the third guide wheel 526 are both parallel to the Y axis, the first guide wheel 525 and the third guide wheel 526 are arranged in bilateral symmetry and are mirror images of each other, the axis of the second guide wheel 524 and the axis of the fourth guide wheel 527 are both parallel to the Z axis, and the second guide wheel 524 and the fourth guide wheel 527 are arranged in bilateral symmetry and are mirror images of each other, as shown in fig. 4 and 8.
In this embodiment, the first guide wheel 525, the second guide wheel 524, the fourth guide wheel 527 and the third guide wheel 526 are arranged in sequence along the X-axis direction, and the wire transporting mechanism 500 further includes a main wire transporting plate 501 and a tensioning mechanism for tensioning the wire electrode 600, the tensioning mechanism is located between the second guide wheel 524 and the fourth guide wheel 527 along the X-axis direction, and the tensioning mechanism is located between the second guide wheel 524 and the wire storage barrel 402 along the Y-axis direction.
Specifically, the tensioning mechanism comprises a first fixed guide wheel 522, a second fixed guide wheel 529, a mounting plate 552, a sliding rail 556, a heavy hammer 555 and a fixed pulley 550, wherein the sliding rail 556 is fixed on the main wire conveying plate 501, the mounting plate 552 is connected with the sliding rail 556 through a sliding block 557, the sliding rail 556 is arranged along the Y-axis direction, the mounting plate 552 can slide along the Y-axis direction, the first fixed guide wheel 522 and the second fixed guide wheel 529 are both fixed on the main wire conveying plate 501, the first fixed guide wheel 522 and the second fixed guide wheel 529 are arranged in bilateral symmetry and are mirror images of each other, a first movable guide wheel 523 is fixed at the right end of the mounting plate 552, a second movable guide wheel 528 is fixed at the left end of the mounting plate 552, and the first movable guide wheel 523 and the second movable guide wheel 528 are arranged. The axis of the first fixed guide wheel 522, the axis of the second fixed guide wheel 529, the axis of the first movable guide wheel 523, and the axis of the second movable guide wheel 528 are all arranged in the Z-axis direction, as shown in fig. 8.
In the Y-axis direction, the first fixed guide wheel 522 is located between the second guide wheel 524 and the first movable guide wheel 523, and the second fixed guide wheel 529 is located between the fourth guide wheel 527 and the second movable guide wheel 528. In the X-axis direction, first movable guide wheel 523 is located between first fixed guide wheel 522 and second guide wheel 524, and second movable guide wheel 528 is located between second fixed guide wheel 529 and fourth guide wheel 527. In the Y-axis direction, weight 555 is located between mounting plate 552 and wire bucket 402, weight 555 is connected to slider 557 (or mounting plate 552) via cable 553, cable 553 passes around fixed pulley 550, and fixed pulley 550 is fixed to main wire plate 501 via axle 551 and pulley seat 554, as shown in FIG. 8. The wire electrode 600 can sequentially bypass the first fixed guide wheel 522, the first movable guide wheel 523, the second guide wheel 524 and the first guide wheel 525 from the wire storage barrel 402, and the wire electrode 600 can sequentially bypass the fourth guide wheel 527, the second movable guide wheel 528 and the second fixed guide wheel 529 from the third guide wheel 526 and then return to the wire storage barrel 402.
A fifth guide wheel 521, a sixth guide wheel 530 and a seventh guide wheel 531 are arranged between the tensioning mechanism and the wire storage barrel 402. The axis of the fifth guide wheel 521 is arranged along the Z-axis direction, the axis of the sixth guide wheel 530 and the axis of the seventh guide wheel 531 are both arranged along the X-axis direction, and the axis of the seventh guide wheel 531 and the axis of the sixth guide wheel 530 are vertically parallel. The fifth guide wheel 521, the second guide wheel 524, the fourth guide wheel 527, the first fixed guide wheel 522, the second fixed guide wheel 529, the first movable guide wheel 523, and the second movable guide wheel 528 are located at the same height.
The electrode wire 600 can go from the wire storage barrel 402, sequentially wind around a fifth guide wheel 521, a first fixed guide wheel 522, a first movable guide wheel 523, a second guide wheel 524 and a first guide wheel 525, and then return to the wire storage barrel 402 after passing through a first main guide wheel 505, a second main guide wheel 506, a third guide wheel 526, a fourth guide wheel 527, a second movable guide wheel 528, a second fixed guide wheel 529, a sixth guide wheel 530 and a seventh guide wheel 531. The wire electrode 600 forms a closed loop in the process.
In this embodiment, the reciprocating wire-feeding electric spark wire-electrode cutting machine comprises two front wire-feeding plates 504, the two front wire-feeding plates 504 are arranged in a bilateral symmetry manner, a first main guide wheel 505 and a second main guide wheel 506 are fixed on the two front wire-feeding plates 504 in a one-to-one correspondence manner, a wire guide nozzle assembly 508 is arranged on the front wire-feeding plates 504, the wire guide nozzle assembly 508 is located between the first main guide wheel 505 and the second main guide wheel 506, the electrode wire 600 can penetrate through the wire guide nozzle assembly 508, and the wire guide nozzle assembly 508 is provided with a nozzle capable of spraying liquid to the electrode wire 600.
In addition, the wire conveying mechanism 500 further comprises a mounting seat 502, a wire feeding motor assembly 503, a main guide wheel seat 507, a conductive block 509 and a wire clamping device 510. The wire storage barrel 402 can rotate by taking the axis of the wire storage barrel 402 as an axis, and the wire storage barrel 402 can also move back and forth along the X axis, so that a circular motion loop of the electrode wire 600 is finally established. A tensioning mechanism is provided in the circuit for tensioning the wire electrode 600. The slide rail 556 is fixed to the main wire conveying plate 501, and the mounting plate 552 provided with the first movable guide roller 523 and the second movable guide roller 528 is fixed to the slider 557. Fixed pulley 550 is fixed to pulley seat 554 by axle 551, and weight 555 is connected to slider 557 by cable 553. The tension of the wire electrode 600 can be changed by increasing the number of the counter weights on the weight 555. When the wire electrode 600 is manually wound, the wire electrode can be temporarily fixed on the wire clamp 510, so that the convenience of manual winding is improved. The wire guide nozzle assembly 508 limits radial run-out of the wire electrode 600, and is internally provided with an annular groove communicated with working fluid, and the working fluid is sprayed out through a nozzle on the end face of the wire electrode during machining, so that liquid spraying machining of a machine tool is realized. When the wire coil is fixed on the wire feeding motor assembly 503 and the pin 558 is inserted into the hole of the main wire conveying plate 501, the pin 558 fixedly inserts the mounting plate 552, the slide rail 556 and the main wire conveying plate 501, the mounting plate 552 and the slide rail 556 can not move relatively any more, and the tensioning mechanism can not work. The tensioning mechanism can only tension the wire electrode 600 after the pin 558 is pulled down. When the wire is required to be fed to the wire storage barrel 402, the wire electrode 600 is wound on the wire storage barrel 402 from a wire coil through the first movable guide wheel 523 and the fifth guide wheel 521, and the wire storage barrel 402 is rotated until the wire feeding is completed.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (5)
1. A reciprocating wire-moving electric spark wire cutting machine is characterized by comprising a wire storage mechanism (400) and a wire conveying mechanism (500), wherein the wire storage mechanism (400) comprises a wire storage barrel (402), the wire conveying mechanism (500) comprises a first main guide wheel (505), a second main guide wheel (506) and a first guide wheel (525), and in a spatial rectangular coordinate system taking an X, Y, Z axis as a coordinate axis, the axis of the first main guide wheel (505) and the axis of the second main guide wheel (506) are both parallel to the Y axis;
the wire electrode (600) positioned between the first main guide wheel (505) and the second main guide wheel (506) is parallel to an X shaft, the axis of the first main guide wheel (505), the axis of the second main guide wheel (506) and the axis of the first guide wheel (525) are all parallel to a Y shaft, the first main guide wheel (505) and the second main guide wheel (506) are positioned at the same height, and the first guide wheel (525) and the wire storage barrel (402) are both positioned above the first main guide wheel (505);
the axis of the wire storage barrel (402) is parallel to the X axis, the wire storage barrel (402) is positioned behind the first main guide wheel (505), the wire storage barrel (402) is positioned between the first main guide wheel (505) and the second main guide wheel (506) along the X axis direction, the second guide wheel (524) is arranged between the first guide wheel (525) and the wire storage barrel (402), and the third guide wheel (526) and the fourth guide wheel (527) are arranged between the second main guide wheel (506) and the wire storage barrel (402);
the first guide wheel (525) is positioned right above the first main guide wheel (505), the third guide wheel (526) is positioned right above the second main guide wheel (506), the axis of the first guide wheel (525) and the axis of the third guide wheel (526) are both parallel to the Y axis, the first guide wheel (525) and the third guide wheel (526) are arranged in bilateral symmetry and are mirror images of each other, the axis of the second guide wheel (524) and the axis of the fourth guide wheel (527) are both parallel to the Z axis, and the second guide wheel (524) and the fourth guide wheel (527) are arranged in bilateral symmetry and are mirror images of each other;
the first guide wheel (525), the second guide wheel (524), the fourth guide wheel (527) and the third guide wheel (526) are sequentially arranged along the X-axis direction, the wire conveying mechanism (500) further comprises a main wire conveying plate (501) and a tensioning mechanism for tensioning the wire electrode (600), the tensioning mechanism is positioned between the second guide wheel (524) and the fourth guide wheel (527) along the X-axis direction, and the tensioning mechanism is positioned between the second guide wheel (524) and the wire storage barrel (402) along the Y-axis direction;
the tensioning mechanism comprises a first fixed guide wheel (522), a second fixed guide wheel (529), a mounting plate (552), a slide rail (556), a heavy hammer (555) and a fixed pulley (550), the guide rail (556) is fixedly connected with the main wire conveying plate (501), the mounting plate (552) is connected with the guide rail (556) through a sliding block (557), the guide rail (556) is arranged along the Y-axis direction, the mounting plate (552) can slide along the Y-axis direction, the first fixed guide wheel (522) and the second fixed guide wheel (529) are both fixed on the main wire conveying plate (501), the first fixed guide wheel (522) and the second fixed guide wheel (529) are arranged in bilateral symmetry and are mirror images of each other, the right end of the mounting plate (552) is provided with a first movable guide wheel (523), the left end of the mounting plate (552) is provided with a second movable guide wheel (528), and the first movable guide wheel (523) and the second movable guide wheel (528) are arranged in bilateral symmetry and are mirror images of each other;
in the Y-axis direction, the first fixed guide wheel (522) is positioned between the second guide wheel (524) and the first movable guide wheel (523), and the second fixed guide wheel (529) is positioned between the fourth guide wheel (527) and the second movable guide wheel (528);
in the X-axis direction, a first movable guide wheel (523) is positioned between a first fixed guide wheel (522) and a second guide wheel (524), and a second movable guide wheel (528) is positioned between a second fixed guide wheel (529) and a fourth guide wheel (527);
along the Y-axis direction, a heavy hammer (555) is positioned between the mounting plate (552) and the wire storage barrel (402), the heavy hammer (555) is connected with the mounting plate (552) through a rope (553), the rope (553) passes through a fixed pulley (550), and the fixed pulley (550) is fixed on the main wire conveying plate (501) through a wheel shaft (551) and a pulley seat (554);
a fifth guide wheel (521), a sixth guide wheel (530) and a seventh guide wheel (531) are further arranged between the tensioning mechanism and the wire storage barrel (402), the axis of the fifth guide wheel (521) is arranged along the Z-axis direction, the axis of the sixth guide wheel (530) and the axis of the seventh guide wheel (531) are arranged along the X-axis direction, the axis of the seventh guide wheel (531) and the axis of the sixth guide wheel (530) are vertically parallel, and the fifth guide wheel (521), the second guide wheel (524), the fourth guide wheel (527), the first fixed guide wheel (522), the second fixed guide wheel (529), the first movable guide wheel (523) and the second movable guide wheel (528) are positioned at the same height;
the electrode wire (600) can sequentially go around a fifth guide wheel (521), a first fixed guide wheel (522), a first movable guide wheel (523), a second guide wheel (524) and a first guide wheel (525) from the wire storage barrel (402) and then return to the wire storage barrel (402) after passing through the fifth guide wheel (521), the first fixed guide wheel (522), the first movable guide wheel (523), the second guide wheel (524) and the first guide wheel (525), the first main guide wheel (505), the second main guide wheel (506), the third guide wheel (526), the fourth guide wheel (527), the second movable guide wheel (528), the second fixed guide wheel (529), the sixth guide wheel (530) and the seventh guide wheel (531.
2. The wire-cut electric discharge machine according to claim 1, wherein the wire-storing mechanism (400) further comprises a wire-storing barrel slide plate base (403) and a wire-storing barrel slide plate (404), the wire-storing barrel (402) is mounted on the wire-storing barrel slide plate (404) through a wire-storing barrel base (415), the wire-storing barrel slide plate base (403) is provided with a guide rail (405), the guide rail (405) is arranged along the axial direction of the wire-storing barrel (402), the wire-storing barrel slide plate (404) is connected with the guide rail (405) of the wire-storing barrel slide plate base (403) through a slider (406), and the wire-storing barrel (402) and the wire-storing barrel slide plate (404) can reciprocate along the axial direction of the wire-storing barrel (402).
3. The wire cut electric discharge machine of claim 2, wherein the wire storage mechanism (400) further comprises a driving unit (401) and a lead screw (409), the axis of the lead screw (409) is parallel to the axis of the wire storage barrel (402), a nut (413) is sleeved outside the lead screw (409), the nut (413) is fixedly connected with a sliding plate base (403) of the wire storage barrel, a large belt pulley (410) is sleeved outside one end of the lead screw (409), a small belt pulley (408) is fixed at one end of the wire storage barrel (402), the large belt pulley (410) is connected with the small belt pulley (408) through a synchronous belt (411), and the driving unit (401) is connected with the other end of the wire storage barrel (402).
4. The reciprocating wire-cut electric discharge machine according to claim 3, wherein a gear wheel (416) and a gear shaft are arranged in the wire storage barrel seat (415), the gear wheel (416) is sleeved outside the gear shaft, the gear shaft is connected and fixed with the silk storage barrel seat (415), the large gear (416) can rotate by taking the gear shaft as a shaft, the surface of the large gear (416) is provided with a groove for rotating the large gear (416), the axis of the large gear (416) is parallel to the axis of the silk storage barrel (402), the large gear (416) can also move along the axis direction of the gear shaft, an elastic component (417) for axially resetting the large gear (416) is arranged outside the gear shaft, a small gear (418) is fixed at one end of the wire storage barrel (402), when the large gear (416) moves along the axial direction of the gear shaft, the large gear (416) can mesh with the small gear (418).
5. The wire electric discharge machine of reciprocating motion according to claim 1, characterized in that, the wire electric discharge machine of reciprocating motion comprises two front wire conveying plates (504), the two front wire conveying plates (504) are arranged symmetrically left and right, the first main guide wheel (505) and the second main guide wheel (506) are fixed on the two front wire conveying plates (504) in a one-to-one correspondence manner, a wire guide nozzle component (508) is arranged on the front wire conveying plate (504), the wire guide nozzle component (508) is arranged between the first main guide wheel (505) and the second main guide wheel (506), the wire electrode (600) can pass through the wire guide nozzle component (508), and the wire guide nozzle component (508) is provided with a nozzle capable of spraying liquid to the wire electrode (600).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021247.1A CN109719357B (en) | 2017-10-27 | 2017-10-27 | Reciprocating wire-moving electric spark wire-electrode cutting machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711021247.1A CN109719357B (en) | 2017-10-27 | 2017-10-27 | Reciprocating wire-moving electric spark wire-electrode cutting machine tool |
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| Publication Number | Publication Date |
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| CN109719357A CN109719357A (en) | 2019-05-07 |
| CN109719357B true CN109719357B (en) | 2020-10-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112475498B (en) * | 2020-11-20 | 2022-04-01 | 浙江万能精机有限公司 | Pure water wire cutting processing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6847002B1 (en) * | 2003-12-26 | 2005-01-25 | Industrial Technology Research Institute | Microelectrode machining device |
| CN201950310U (en) * | 2011-01-10 | 2011-08-31 | 苏州市金马机械电子有限公司 | Horizontal cutting linear cutting machine |
| CN204277147U (en) * | 2014-10-28 | 2015-04-22 | 苏州市宝玛数控设备有限公司 | A kind of electric spark |
| CN205496721U (en) * | 2016-03-15 | 2016-08-24 | 北京安德建奇数字设备股份有限公司 | Double two -way permanent tensioner constructs |
| CN106001802A (en) * | 2016-06-07 | 2016-10-12 | 陈婷 | Novel precise electric spark cutting machine |
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2017
- 2017-10-27 CN CN201711021247.1A patent/CN109719357B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6847002B1 (en) * | 2003-12-26 | 2005-01-25 | Industrial Technology Research Institute | Microelectrode machining device |
| CN201950310U (en) * | 2011-01-10 | 2011-08-31 | 苏州市金马机械电子有限公司 | Horizontal cutting linear cutting machine |
| CN204277147U (en) * | 2014-10-28 | 2015-04-22 | 苏州市宝玛数控设备有限公司 | A kind of electric spark |
| CN205496721U (en) * | 2016-03-15 | 2016-08-24 | 北京安德建奇数字设备股份有限公司 | Double two -way permanent tensioner constructs |
| CN106001802A (en) * | 2016-06-07 | 2016-10-12 | 陈婷 | Novel precise electric spark cutting machine |
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