CN203556973U - Three-dimensional numerically controlled wire cut electrical discharge machining tool - Google Patents
Three-dimensional numerically controlled wire cut electrical discharge machining tool Download PDFInfo
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- CN203556973U CN203556973U CN201320519549.2U CN201320519549U CN203556973U CN 203556973 U CN203556973 U CN 203556973U CN 201320519549 U CN201320519549 U CN 201320519549U CN 203556973 U CN203556973 U CN 203556973U
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- 238000009763 wire-cut EDM Methods 0.000 title abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 54
- 238000004804 winding Methods 0.000 claims abstract description 15
- 238000009760 electrical discharge machining Methods 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model discloses a three-dimensional numerically controlled wire cut electrical discharge machining tool. The three-dimensional numerically controlled wire cut electrical discharge machining tool comprises a tool body, a cross carriage arranged on the tool body and stand columns disposed at the left side and the right side and fixed on the tool body. Upper portions of the stand columns disposed at the left side and the right side are provided with a connection crossbeam. A left wire arm guide rail is arranged on a stand column disposed at the left side. A left wire arm is arranged on the left wire arm guide rail. A right wire arm guide rail is arranged on a stand column disposed at the right side. A right wire arm is arranged on the right wire arm guide rail. Two ends of the left wire arm and the right wire arm are provided with fixed blocks. The fixed blocks are movably connected with lead screws. Lead screw pairs are also fixed on the left wire arm and the right wire arm. The three-dimensional numerically controlled wire cut electrical discharge machining tool has following beneficial effects: the three-dimensional numerically controlled wire cut electrical discharge machining tool is simple in structure; three guide wheels are added on the basis of an original wire cut electrical discharge machining; a group of UV carriages is added; a wire winding path of a wire electrode is changed; one-time clamping of a workpiece is achieved; cutting operation of a three-dimensional surface is achieved; and the three-dimensional numerically controlled wire cut electrical discharge machining tool is cost in low and good in popularization and is easy to use.
Description
Technical Field
The utility model relates to a numerical control wire cut electrical discharge machining bed, concretely relates to three-dimensional numerical control spark-erosion wire cutting machine.
Background
The common numerical control wire cut electrical discharge machine comprises a machine body, a column, an upper wire arm, a lower wire arm, a cross planker, a wire feeding mechanism and an electrical control device, wherein in the wire feeding mechanism, a closed circulating loop is formed by a wire electrode through a wire winding drum and upper and lower guide wheels, and a high-frequency cutting head is formed in the loop; and the wire inlet end of the electrode wire is provided with a conductive block which is connected with the negative electrode of a high-frequency power supply to enable the electrode wire to be charged with high-frequency negative electricity, the workpiece clamp is connected with the positive electrode of the high-frequency power supply to enable the workpiece to be charged with high-frequency positive electricity, so that the electrode wire and the workpiece are subjected to an electroerosion action, and the electrode wire cuts the workpiece.
Nowadays, a method for cutting a three-dimensional surface by using a wire electric discharge machine:
A. and (3) using a common linear cutting machine, rotating the workpiece or the clamp, and cutting after cumbersomely calibrating. Two methods are summarized: a. generally, a method of rotating a workpiece for multiple times, then clamping and then correcting is adopted; the limitations are as follows: the checking is complicated, the number of human factors is large, the precision is low, the intersection angles of the multi-dimensional cutting surfaces of the finished product are different every time, and the accumulated error of secondary clamping is large. b. The method of positioning by using a clamp has the following limitations: the checking fixture and the clamping workpiece are frequently accumulated, the accumulated error is large, and the cost of the fixture is high.
The limitations of the machine type and method for cutting the three-dimensional solid surface in the existing wire cutting industry affect the utilization rate of wire cutting in the processing of the three-dimensional solid surface. The processing of three-dimensional surfaces mostly refers to a processing center for filtering. However, the machining center has the disadvantages of excessive cutting materials, complex mechanical structure, complex linkage system with more than four shafts, complex three-dimensional modeling and programming, expensive labor and high machine price.
The numerical control wire cut electrical discharge machining almost has no cutting machining force, and has the advantages of high machining efficiency, stability, reliability, economy, durability, convenient maintenance, small machining allowance, high machining precision, capability of cutting superhard workpieces and the like; in recent years, the wire-cutting high-frequency processing speed is increased by several times; and the roughness of the medium-speed wire cutting is greatly reduced. As long as the limitation of the existing cutting method of the three-dimensional surface is solved, the utilization rate of the wire-electrode cutting in the three-dimensional surface processing is greatly improved. Therefore, a wire cutting machine or a technical process which is simple, labor-saving and accurate in cutting a three-dimensional surface is expected by the mechanical processing industry.
SUMMERY OF THE UTILITY MODEL
To the above problems, the utility model provides a numerical control spark-erosion wire cutting machine that comprises a plurality of high frequency cutting heads is equipped with a plurality of high frequency cutting heads on this numerical control spark-erosion wire cutting machine, and parallel cut, mitre cut, perpendicular cut are carried out respectively to the path of transform wire electrode wire winding and are realized three-dimensional cutting, still can process a plurality of work pieces or the work piece of superpose of x direction range simultaneously.
The utility model provides a technical scheme that above-mentioned problem adopted is: a three-dimensional numerical control wire cut electric discharge machine comprises a machine body, a cross planker arranged on the machine body and upright posts fixed on the left side and the right side of the machine body, the upper parts of the left and right side upright posts are provided with connecting beams, the middle part of the left side upright post is provided with a lower wire arm, the middle part of the cross beam is provided with an upper wire arm and a fixed block, the cross planker is provided with a working table surface, the working table surface is provided with a workpiece clamp and further comprises a wire winding drum fixed on the lathe bed, the left side upright post is provided with a left wire arm guide rail, a left wire arm is arranged on the left wire arm guide rail, a left guide wheel is arranged at the lower end of the left wire arm, a right wire arm guide rail is arranged on the right upright post, the wire winding machine is characterized in that a right wire arm is mounted on the right wire arm guide rail, a right guide wheel is arranged at the lower end of the right wire arm, fixed blocks are mounted at the upper end and the lower end of the left wire arm and the right wire arm, a lead screw is movably connected onto the fixed blocks, and a lead screw pair is further connected onto the left wire arm and the right wire arm.
Furthermore, a conductive block is arranged on the right wire arm.
Furthermore, an internal thread is arranged on the screw rod pair and meshed with an external thread on the screw rod, a screw rod gear is fixedly arranged on the screw rod and meshed with a motor gear, and the motor gear is connected with a UV shaft driving motor.
Further, the left wire arm guide rail is perpendicular to the working table.
Further, the right wire arm guide rail is perpendicular to the working table.
Furthermore, left side stand upper portion is equipped with upper left guide pulley, and left side stand lower part is equipped with lower left guide pulley, be equipped with upper left guide pulley on the automatic tight silk device, when controlling the line arm asynchronous, the automatic tight silk device adjusts the degree of tension of wire electrode.
Furthermore, the upper part of the right upright post is provided with a right upper guide wheel.
Furthermore, an upper guide wheel and a conductive block are arranged on the upper wire arm, the upper wire arm comprises an upper wire arm fixing part and an upper wire arm adjustable moving part, and the upper wire arm fixing part and the upper wire arm adjustable moving part are connected through a guide rail.
Furthermore, a lower guide wheel is arranged on the lower wire arm.
Further, the wire winding barrel is wound with the electrode wire.
Furthermore, the wire electrode is wound on the upper guide wheel, the lower guide wheel, the upper left guide wheel and the lower left guide wheel respectively to form a vertical high-frequency cutting head, and the wire electrode is wound on the right guide wheel, the left guide wheel, the upper right guide wheel, the upper left guide wheel and the lower left guide wheel respectively to form a parallel high-frequency cutting head.
Further, the automatic wire tensioning device may be a gravity automatic wire tensioning device.
Compared with the prior art, the utility model, the advantage is:
1. compared with the common linear cutting machine, the complex process is changed into single operation, the efficiency is improved, the wage is reduced, and the clamp cost is saved. a. Cutting, manufacturing or purchasing a clamp is avoided; b. a calibration-free clamp; c. more than half of workload of re-clamping and correcting the workpiece is reduced; d. the clamp is not cleaned before the workpiece is clamped every time; e. the utility model has good universality, the utility model has large application range of workpiece weight, size, shape and clamping excess material, and convenient operation and high efficiency; f. accumulated errors caused by multiple clamping are avoided, the unification of the intersection angles of the cutting surfaces with several dimensions of the finished product is guaranteed, the accuracy and the stability are high, the quality management cost is reduced, and defective products are reduced; g. the simultaneous transverse cutting of a plurality of x-direction display workpieces is realized, and the efficiency is high.
2. Compared with a taper or large-swing linear cutting machine tool, the utility model adopts a mechanical structure with four shafts (four plankers) and a shaft linkage electric control device, so that the mechanical structure with more than five shafts and the electric control device with more than four shafts can be saved, the machine cost is low, and the machine maintenance cost is low; the uv planker is small in volume, simple and easy to use, and easy to popularize, the utility model only adds three guide wheels on the basis of the original common wire cutting machine tool, adds a group of uv plankers, changes the wire winding path of the wire electrode, changes an unstable single-upright-post wire frame into a stable gantry wire frame, does not change other parts, and does not add other parts, thereby realizing one-time clamping of the workpiece and realizing the cutting of the three-dimensional abnormal-shaped solid surface; when the electrode wire is parallel to the working table surface, a plurality of displayed workpieces in the x direction can be cut simultaneously and parallelly; the machine type is low in cost, easy to use and easy to popularize.
When uv is synchronous, two carriages are equivalent to uv carriages, namely four shafts of three carriages, and a simple two-dimensional plan program is used during work.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the following drawings
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of a three-dimensional numerical control wire cut electric discharge machine of the present invention;
FIG. 2 is a partial top enlarged view of the screw rod in the A-A direction of the present invention;
FIG. 3 is a schematic circuit wiring diagram of the vertical high-frequency cutting head and the workpiece clamp part of the three-dimensional numerical control wire cut electric discharge machine of the present invention; and
fig. 4 is the circuit wiring schematic diagram of the parallel high-frequency cutting head and the workpiece clamp part of the three-dimensional numerical control wire cut electric discharge machine of the utility model. Wherein,
reference numerals:
1 is a wire winding drum, 2 is an upper guide wheel, 3 is a lower guide wheel, 4 is an upper wire arm, 4-1 is an upper wire arm fixing part, 4-2 is an upper wire arm adjustable moving part, 5 is a lower wire arm, 6 is a lathe bed, 7 is a column, 8 is a cross planker, 9 is a workbench surface, 10 is an electrode wire, 11 is a conductive block, 11-1 is a conductive block, 11-2 is a conductive block, 12 is a workpiece clamp, 13-1 is a vertical high-frequency cutting head, 13-2 is a parallel high-frequency cutting head, 14 is a right wire arm guide rail, 15 is a left wire arm guide rail, 16 is a z-axis screw rod, 17 is a cross beam, 18 is a workpiece, 19 is a connecting cross arm, 20 is a right wire arm, 21 is a left wire arm, 22 is a right guide wheel, 23 is a left guide wheel, 24 is a right upper guide wheel, 25 is a left upper guide wheel, 26 is a left lower guide wheel, 33 is a screw rod pair, 34 is a screw rod gear, 35, A UV shaft driving motor 37, a motor gear 38 and an automatic wire tightening device 39.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 to 4, a three-dimensional numerical control wire cut electric discharge machine shown in fig. 1 and 2 comprises a machine body 6, a cross planker 8 arranged on the machine body 6, and columns 7 fixed on the left and right sides of the machine body 6, wherein a cross beam 17 is arranged on the upper portions of the columns 7 on the left and right sides, a lower wire arm 5 is arranged in the middle of the column 7 on the left side, an upper wire arm 4 and a fixed block 33 are arranged in the middle of the cross beam 17, a working table 9 is arranged on the cross planker 8, a workpiece fixture 12 is arranged on the working table 9, the machine further comprises a wire winding drum 1 fixed on the machine body 6, a left wire arm guide rail 15 is arranged on the column 7 on the left side, a left wire arm 21 is arranged on the left wire arm guide rail 15, a left guide wheel 23 is arranged at the lower end of the left wire arm 21, a right wire arm guide rail 14 is arranged on the column 7 on, the upper end and the lower end of the left wire arm 21 and the right wire arm 20 are provided with fixing blocks 36, the fixing blocks 36 are movably connected with screw rods 35, and the left wire arm 21 and the right wire arm 20 are further fixedly provided with screw rod pairs 33.
Preferably, the left and right side columns 7 are connected with the cross beam 17 to form a gantry type wire frame, and the gantry type is more stable than a bed sheet column wire frame of a common wire cutting machine.
The right screw rod 35 (corresponding to the u axis of the three-dimensional coordinate) is arranged on the right wire arm 20, the left screw rod 35 (corresponding to the v axis of the three-dimensional coordinate) is arranged on the left wire arm 21, and the screw rod 35 is fixed on the gantry wire frame upright post 7.
Preferably, the right wire arm 20 is provided with a conductive block 11.
Preferably, the screw rod pair 33 is provided with an internal thread, the internal thread is meshed with an external thread on the screw rod 35, the screw rod 35 is fixedly provided with a screw rod gear 34, the screw rod gear 34 is meshed with a motor gear 38, and the motor gear 38 is connected with a UV shaft driving motor 37.
Preferably, the left and right wire arm guides 15, 14 are perpendicular to the work surface 9.
Preferably, the upper part of the left upright post 7 is provided with a left upper guide wheel 25, the lower part of the left upright post 7 is provided with a left lower guide wheel 26, and the automatic wire tensioning device 39 is provided with the left upper guide wheel 25.
Preferably, the upper part of the right upright post 7 is provided with a right upper guide wheel 24.
Preferably, the upper wire arm 4 is provided with an upper guide wheel 2 and a conductive block 11, the upper wire arm 4 comprises an upper wire arm fixing part 4-1 and an upper wire arm adjustable moving part 4-2, and the upper wire arm fixing part 4-1 and the upper wire arm adjustable moving part 4-2 are connected through a guide rail.
Preferably, the lower wire arm 5 is provided with a lower guide wheel 3.
Preferably, the wire winding cylinder 1 is wound with the electrode wire 10.
Preferably, the wire electrode 10 is wound on the upper guide wheel 2, the lower guide wheel 3, the left upper guide wheel 25 and the left lower guide wheel 26 respectively to form a vertical high-frequency cutting head 13-1, and the wire electrode 10 is wound on the right guide wheel 22, the left guide wheel 23, the right upper guide wheel 24, the left upper guide wheel 25 and the left lower guide wheel 26 respectively to form a parallel high-frequency cutting head 13-2.
As shown in fig. 3 and 4, one end of the vertical high-frequency cutting head 13-1 is provided with a conductive block ll-2, one end of the parallel high-frequency cutting head 13-2 is provided with a conductive block 11-1, the conductive block 11-1 and the conductive block 11-2 are connected with the wire electrode 10, the conductive block ll-1 and the conductive block l1-2 are connected in parallel with the negative electrode of the same high-frequency power supply, and the work holder 12 is connected with the positive electrode of the high-frequency power supply, so as to form a parallel power supply structure of the vertical high-frequency cutting head 13-1 and the parallel high-frequency cutting head 13-2; the conductive block 11-2 is arranged on the upper wire arm 4 or on the cross beam 17, and the conductive block 11-2 is positioned on the left side of the upper guide wheel 2; the conductive block 11-1 is arranged on the right wire arm 20 and positioned above the right guide wheel 22; the vertical high-frequency cutting head 11-1 is vertical to the working table top 9; the parallel high-frequency cutting head 13-2 is parallel or obliquely intersected with the worktable surface 9.
When a workpiece 18 is subjected to yz plane track cutting, one wire electrode 10 led out of the wire winding drum 1 is wound on a right guide wheel 22, a left guide wheel 23, a right upper guide wheel 24, a left upper guide wheel 25, a left lower guide wheel 26 and a conducting block ll-1, corresponding u-axis, v-axis and y-axis driving motors are selected to be in signal communication with a controller, a y-carriage in the cross-shaped carriage 8 is linked with u-axis and v-carriage on the gantry wire frame, and a parallel high-frequency cutting head 13-2 is used for carrying out yz plane track cutting on the workpiece 18 to finish special-shaped cutting surfaces.
When u, v are synchronized, cutting heads 13-2 are parallel at different times.
When the trace of a workpiece 18 on an xy plane is cut, one wire electrode 10 led out from a wire winding drum is wound on an upper guide wheel 2, a lower guide wheel 3, a left upper guide wheel 25, a left lower guide wheel 26 and a conducting block ll-2, corresponding x-axis and y-axis driving motors are selected to be communicated with a controller through signals, an x-axis planker and a y-axis planker in a cross planker 8 are linked, and a vertical high-frequency cutting head 13-1 is used for cutting the trace of the workpiece 18 on the xy plane.
The foregoing is only a preferred embodiment of the present invention, which includes but is not limited to the present example, and the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a three-dimensional numerical control spark-erosion wire cutting machine bed, includes the lathe bed, establishes the cross planker on the lathe bed and fixes the stand of the left and right sides on the lathe bed, left and right sides stand upper portion is equipped with the connection crossbeam, left side stand middle part is equipped with the line arm of inserting, the middle part of crossbeam is equipped with line arm and fixed block, be equipped with table surface on the cross planker, table surface is last to be equipped with work piece holder, still including fixing the wire winding section of thick bamboo on the lathe bed, its characterized in that: the novel wire winding machine is characterized in that a left wire arm guide rail is arranged on the left side stand column, a left wire arm is installed on the left wire arm guide rail, a left guide wheel is arranged at the lower end of the left wire arm, a right wire arm guide rail is arranged on the right side stand column, a right wire arm is installed on the right wire arm guide rail, a right guide wheel is arranged at the lower end of the right wire arm, fixed blocks are installed at the upper end and the lower end of the left wire arm and the right wire arm, a lead screw is movably connected to the fixed blocks, and a lead screw pair is further connected to the left.
2. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: and the right wire arm is provided with a conductive block.
3. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: the UV shaft driving motor is characterized in that an internal thread is arranged on the screw rod pair and meshed with an external thread on the screw rod, a screw rod gear is fixedly arranged at the upper end of the screw rod and meshed with a motor gear, and the motor gear is connected with the UV shaft driving motor.
4. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1 or 2, characterized in that: the left wire arm guide rail and the right wire arm guide rail are perpendicular to the working table surface.
5. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: the automatic wire tightening device is arranged on the upper portion of the left side stand column, the lower portion of the left side stand column is provided with a left lower guide wheel, and the automatic wire tightening device is provided with a left upper guide wheel.
6. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: and the upper part of the right upright post is provided with a right upper guide wheel.
7. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: the wire feeding arm is provided with a wire feeding guide wheel and a conductive block, and comprises a wire feeding arm fixing part and a wire feeding arm adjustable moving part, and the wire feeding arm fixing part and the wire feeding arm adjustable moving part are connected through a guide rail.
8. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: and a lower guide wheel is arranged on the lower coil arm.
9. The three-dimensional numerical control wire-cut electric discharge machine according to claim 1, characterized in that: the wire winding barrel is wound with electrode wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320519549.2U CN203556973U (en) | 2013-08-23 | 2013-08-23 | Three-dimensional numerically controlled wire cut electrical discharge machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320519549.2U CN203556973U (en) | 2013-08-23 | 2013-08-23 | Three-dimensional numerically controlled wire cut electrical discharge machining tool |
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| Publication Number | Publication Date |
|---|---|
| CN203556973U true CN203556973U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320519549.2U Expired - Fee Related CN203556973U (en) | 2013-08-23 | 2013-08-23 | Three-dimensional numerically controlled wire cut electrical discharge machining tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN203556973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406618A (en) * | 2013-08-23 | 2013-11-27 | 王三月 | Three-dimensional numerical control wire-cut electric discharge machine |
| CN106249698A (en) * | 2016-09-26 | 2016-12-21 | 武汉益模科技股份有限公司 | Intelligent programming for wire cutting method and system based on three-dimensional graphics design platform |
-
2013
- 2013-08-23 CN CN201320519549.2U patent/CN203556973U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406618A (en) * | 2013-08-23 | 2013-11-27 | 王三月 | Three-dimensional numerical control wire-cut electric discharge machine |
| CN103406618B (en) * | 2013-08-23 | 2015-09-09 | 王三月 | Three-dimensional numerical control wire-cut electric discharge machine |
| CN106249698A (en) * | 2016-09-26 | 2016-12-21 | 武汉益模科技股份有限公司 | Intelligent programming for wire cutting method and system based on three-dimensional graphics design platform |
| CN106249698B (en) * | 2016-09-26 | 2019-02-05 | 武汉益模科技股份有限公司 | Intelligent programming for wire cutting method and system based on three-dimensional graphics design platform |
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Granted publication date: 20140423 Termination date: 20140823 |
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| EXPY | Termination of patent right or utility model |