CN111906398B - Seven-axis linkage linear cutting equipment - Google Patents
Seven-axis linkage linear cutting equipment Download PDFInfo
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- CN111906398B CN111906398B CN201910386000.2A CN201910386000A CN111906398B CN 111906398 B CN111906398 B CN 111906398B CN 201910386000 A CN201910386000 A CN 201910386000A CN 111906398 B CN111906398 B CN 111906398B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims description 32
- 238000012545 processing Methods 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009763 wire-cut EDM Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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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
-
- 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
- B23H7/104—Wire tension control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention belongs to the technical field of machining equipment, and particularly relates to seven-axis linkage linear cutting equipment, which comprises a lathe bed, wherein the lathe bed is provided with an X-axis platform, a Y-axis platform and a Z-axis platform, the Z-axis platform is provided with a UV (ultraviolet) axis moving device, a wire barrel device and an operation panel, the UV axis moving device is provided with a wire frame device, the wire barrel device is provided with a swinging rod component, a workbench is arranged above the lathe bed, a servo driving unit is arranged below the lathe bed, and the wire barrel device forms a cutting loop with the wire frame device through an electrode cutting wire.
Description
Technical Field
The invention belongs to the technical field of machining equipment, and particularly relates to seven-axis linkage linear cutting equipment.
Background
Static wire-moving wire-cut electrical discharge machining is an advanced workpiece machining technology and plays a vital role in die manufacturing, cutter manufacturing, composite material machining and high-precision complex part machining. The static wire cutting control system and the wire cut electrical discharge machining process are core parts of a static wire cutting machine tool, and have great influence on stability, machining precision and machining efficiency in the machining process of the machine tool.
The conventional wire cutting device is generally four-axis or five-axis device, but cannot meet the requirements of mass production and high-precision processing in terms of working stability, processing precision and personnel, and especially cannot meet the processing conditions of such materials for multi-form workpieces such as special materials, and is difficult to be used as a preferable processing platform of the leading-edge industry for enterprise production or new product research and development, so that a novel wire cutting device is required to meet the requirements.
Disclosure of Invention
Aiming at the technical defects in the background technology, the invention provides novel seven-axis linkage linear cutting equipment, which solves the technical problems in the background technology, and the specific technical scheme is as follows:
Seven-axis linkage linear cutting equipment comprises a lathe bed, wherein the lathe bed is provided with an X-axis platform, a Y-axis platform and a Z-axis platform, the Z-axis platform is provided with a UV (ultraviolet) axis moving device, a wire barrel device and an operation panel, the UV axis moving device is provided with a wire frame device, the wire barrel device is provided with a swing rod assembly, a workbench is arranged above the lathe bed, a servo driving unit is arranged below the lathe bed, and the wire barrel device forms a cutting loop with the wire frame device through an electrode cutting wire; the X-axis platform is arranged in the middle of the Y-axis platform and comprises an X-axis guide rail pair, an X-axis motor, an X-axis screw rod and an X-axis moving platform, wherein the center line of the X-axis moving platform is arranged on the X-axis screw rod in a penetrating way, two ends of the X-axis moving platform are arranged on the X-axis guide rail pair arranged on the bed body at two sides in a erecting way, one end of the X-axis screw rod is connected with the output end of the X-axis motor arranged on the bed body, and the other end of the X-axis screw rod is fixed through a bearing; The Y-axis platform comprises a Y-axis guide rail pair, a Y-axis motor and a Y-axis screw rod, wherein the Y-axis motor is arranged on the lathe bed, the Y-axis guide rail pair is symmetrically arranged at two sides of the Y-axis motor, one end of the Y-axis screw rod is connected with the output end of the Y-axis motor, and the other end of the Y-axis screw rod is fixed through a bearing; the bottom end of the Z-axis platform is arranged on the X-axis moving platform and comprises a Z-axis motor, a Z-axis screw rod, a Z-axis moving platform and a Z-axis guide rail pair, wherein the Z-axis motor is arranged at the top end of the Z-axis platform, the Z-axis screw rod is vertically and downwards connected to the output end of the Z-axis motor, the other end of the Z-axis screw rod is fixed at the bottom end of the Z-axis platform through a bearing, the Z-axis guide rail pair is symmetrically arranged on two sides of the Z-axis screw rod, the Z-axis moving platform penetrates through the Z-axis screw rod, and two side frames of the Z-axis moving platform are arranged on the Z-axis guide rail pair; The UV shaft moving device comprises a U shaft moving part and a V shaft moving part, wherein the U shaft moving part comprises a U shaft guide rail pair, a U shaft motor, a U shaft screw and a U shaft moving platform, the U shaft motor is arranged on one side of the Z shaft moving platform, one end of the U shaft screw is connected with the output end of the U shaft motor, the other end of the U shaft screw is fixed on the other side of the Z shaft moving platform through a bearing, the U shaft guide rail pair is symmetrically arranged on two sides of the U shaft screw, the U shaft moving platform is of an L-shaped plate structure, the vertical surface of the U shaft moving platform is arranged on the U shaft screw in a penetrating manner, and the two sides of the U shaft guide rail pair are erected on the U shaft guide rail pair; the V-axis moving part comprises a V-axis guide rail pair, a V-axis motor and a V-axis screw rod, the V-axis motor is arranged at one end, far away from the bending part, of the bottom of the horizontal plane of the U-axis moving platform, the V-axis screw rod is connected with the output end of the V-axis motor and is perpendicular to the U-axis screw rod through a bearing to be fixed on the U-axis moving platform, and the V-axis guide rail pair is symmetrically arranged at two sides of the V-axis screw rod; The wire cylinder device comprises an upper wire cylinder storage part and a lower wire cylinder storage part, wherein the upper wire cylinder storage part comprises an upper wire cylinder, an upper motor, a W-axis motor and a W-axis guide rail, the W-axis guide rail is arranged on a Z-axis platform in parallel with a Y-axis screw rod, the upper motor is arranged at one end of the W-axis guide rail, and the upper wire cylinder and the upper motor are connected into a whole, are arranged on the W-axis guide rail and are in transmission connection with the output end of the upper motor; the lower wire storage cylinder part comprises a lower wire storage cylinder, a lower motor, an F-axis motor and an F-axis guide rail, wherein the F-axis guide rail is parallel to a Y-axis screw rod and arranged below a W-axis guide rail of the Z-axis platform, the lower motor is arranged at one end of the F-axis guide rail on the same side as the upper motor, and the lower wire storage cylinder is connected with the lower motor into a whole, is arranged on the F-axis guide rail and is in transmission connection with the output end of the lower motor; The wire frame device comprises an upper wire frame, a lower wire frame and a swinging rod, wherein the upper wire frame comprises an upper bearing seat, an upper transmission shaft, an upper connecting rod, an upper guide wheel and an upper conductive block, the upper bearing seat is arranged on a V-axis lead screw in a penetrating manner and is erected on a V-axis guide rail pair 510, the upper transmission shaft is arranged in the upper bearing seat in a penetrating manner, one end of the upper transmission shaft is connected with the upper conductive block and the upper guide wheel, and the upper guide wheel is hinged with one end of the upper connecting rod; the lower wire frame comprises a lower bearing seat, a lower transmission shaft, a lower connecting rod, a lower guide wheel and a lower conductive block, wherein the lower bearing seat is fixed on the same side of the Z-axis platform as the upper bearing seat, the lower transmission shaft penetrates through the lower bearing seat, one end of the lower transmission shaft is connected with the lower conductive block and the lower guide wheel, and the lower guide wheel is hinged with one end of the lower connecting rod; The other end of the upper transmission shaft is hinged with the other section of the upper connecting rod through a swinging rod, and the other end of the lower transmission shaft is hinged with the other section of the lower connecting rod through a swinging rod; the swing rod assembly comprises a swing rod motor, an encoder, a swing rod, an upper wire discharge guide wheel, a lower wire discharge guide wheel and an auxiliary guide wheel set, wherein the swing rod motor is arranged between the Z-axis platform and the wire cylinder device, the output end of the swing rod motor is connected with the swing rod through the encoder, the swing arm of the swing rod is provided with the auxiliary guide wheel set, one side of the swing rod, which is close to the wire cylinder device, is provided with the auxiliary guide wheel set, the lower wire discharge guide wheel set is arranged between the auxiliary guide wheel set and the wire cylinder device, the upper wire discharge guide wheel set is arranged above the lower wire discharge guide wheel, and the number of the guide wheels of the auxiliary guide wheel set is not less than 2; As a further embodiment of the invention, an upper wire guide is arranged at the joint of the upper guide wheel and the upper connecting rod, and a lower wire guide is arranged at the joint of the lower guide wheel and the lower connecting rod.
As a further embodiment of the invention, the workbench comprises a water tank, a processing platform and a baffle plate, wherein the periphery of the processing platform is nested at the bottom of the water tank, the lower part of the processing platform is arranged on a Y-axis lead screw in a penetrating manner, two sides of the processing platform are arranged on a Y-axis guide rail pair in a erecting manner, the periphery of the water tank is provided with the baffle plate, and the baffle plates on two adjacent surfaces are provided with drawing type loose-leaf doors.
As a further embodiment of the invention, the X-axis platform, the Y-axis platform and the Z-axis platform are all provided with dust covers, the servo driving unit is connected with the X-axis platform, the Y-axis platform, the Z-axis platform, the UV-axis moving device, the wire cylinder device, the wire frame device and the swing rod assembly through circuits, and the operation panel is connected with the servo driving unit through circuits.
The invention has the beneficial effects that: the linear cutting machining platform with 7 shafts is used, the shafts are coordinated and matched with each other, the tension variation amplitude of the electrode cutting wire in the working engineering is stabilized, and simultaneously, the posture of the electrode cutting wire in the working process can be adjusted according to requirements, so that the material type, the size range, the machining precision, the machining stability and the like of the electrode cutting wire are greatly improved compared with those of the traditional product, the manual quantity in the working engineering is reduced, and the comprehensive production efficiency is improved by not less than 30%.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a partial enlarged view of the X-axis table 2.
Fig. 3 is a partial enlarged view of the Y-axis stage 3.
Fig. 4 is a schematic structural view of the Z-axis stage 4.
Fig. 5 is a schematic structural view of the UV axis moving device 5.
Fig. 6 is a schematic structural view of the wire cylinder device 6.
Fig. 7 is a schematic view 1 of a wire frame device 8.
Fig. 8 is a schematic diagram 2 of the structure of the wire frame device 8.
Fig. 9 is a schematic structural view of the swing link assembly 9.
Fig. 10 is a schematic view of the structure of the table 10.
Wherein: machine bed 1, X-axis table 2, X-axis guide rail pair 20, X-axis motor 21, X-axis screw 22, X-axis moving table 23, Y-axis table 3, Y-axis guide rail pair 30, Y-axis motor 31, Y-axis screw 32, Z-axis table 4, Z-axis motor 40, Z-axis screw 41, Z-axis moving table 42, Z-axis guide rail pair 43, UV-axis moving device 5, U-axis moving section 50, U-axis guide rail pair 500, U-axis motor 501, U-axis screw 502, U-axis moving table 503, V-axis moving section 51, V-axis guide rail pair 510, V-axis motor 511, V-axis screw 512, wire cylinder device 6, upper wire cylinder 60, upper wire cylinder 600, upper motor 601, W-axis motor 602 and W-axis guide rail 603, lower wire cylinder 61, lower wire cylinder 610 lower motor 611, F-axis motor 612, F-axis guide 613, operation panel 7, wire holder device 8, upper wire holder 80, upper bearing block 800, upper transmission shaft 801, upper link 802, upper guide roller 803, upper conductive block 804, upper wire guide 815, lower wire holder 81, lower bearing block 810, lower transmission shaft 811, lower link 812, lower guide roller 813, lower conductive block 814, lower wire guide 815, swing lever 82, swing lever assembly 9, swing lever motor 90, encoder 91, swing lever 92, upper wire guide roller 93, lower wire guide roller 94, auxiliary guide roller set 95, auxiliary guide roller 96, table 10, water tank 100, processing platform 101, baffle 102, drawing type hinge door 103, servo drive unit 11, dust cover 12.
Detailed Description
The following description of the embodiments of the present invention is given with reference to the accompanying drawings and related examples, and it should be noted that the following related examples are merely preferred examples for better illustration of the present invention itself, but the embodiments of the present invention are not limited to the following examples, and the present invention relates to the relevant essential parts in the technical field, and should be regarded as known and understood by those skilled in the art.
In the description of the present invention, it should be understood that the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely used to describe the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
As shown in fig. 1, the seven-axis linkage linear cutting device comprises a machine body 1, wherein the machine body 1 is provided with an X-axis platform 2, a Y-axis platform 3 and a Z-axis platform 4, the Z-axis platform 4 is provided with a UV (ultraviolet) axis moving device 5, a wire cylinder device 6 and an operation panel 8, the UV axis moving device 5 is provided with a wire frame device 8, the wire cylinder device 6 is provided with a swing rod assembly 9, a workbench 10 is arranged above the machine body 1, a servo driving unit 11 is arranged below the machine body, and the wire cylinder device 6 forms a cutting loop with the wire frame device 8 through electrode cutting wires.
The principle of the present invention is that the seven axes include an XY axis, a Z axis, a UV axis, and W and F axes of the wire barrel device 6, the XY axis is independently and linearly moved, the Z axis is independently and linearly moved to adjust the height of the workpiece, the UV axis is independently and linearly moved to adjust the verticality of the wire electrode and simultaneously move to adjust the taper, the WF axis is independently and linearly moved to arrange the wire electrode gap and simultaneously move to adjust the wire electrode tension value, the swing rod assembly 9 performs fine adjustment of the tension, the operation panel 8 operates the servo driving unit 11 to enable the apparatus of the present invention to operate according to a predetermined processing program, the seven axes linkage structure described in the present invention realizes that the wire feeding tension is constant, thereby achieving the purpose of cutting workpieces of various forms, and in addition, although not described in the present invention, it should be understood that the electrode wire cutting operation is required to form a loop, the specific wire lapping method is set up according to the actual wire feeding structure, which belongs to the known technical scope in the field, and the required pulse excitation device for the electrode wire cutting operation is also known in the industry, therefore belongs to one of the technical matters of the present invention.
Referring to fig. 2 and 3, in a preferred embodiment, the X-axis platform 2 is disposed in the middle of the Y-axis platform 3, the X-axis platform 2 includes an X-axis guide rail pair 20, an X-axis motor 21, an X-axis screw 22, and an X-axis moving platform 23, the center line of the X-axis moving platform 23 is threaded with the X-axis screw, two ends of the X-axis screw are erected on the X-axis guide rail pair 20 disposed on the machine body 1 at two sides, one end of the X-axis screw 21 is connected with the output end of the X-axis motor 21 disposed on the machine body 1, and the other end of the X-axis screw is fixed by a bearing; the Y-axis platform 3 comprises a Y-axis guide rail pair 30, a Y-axis motor 31 and a Y-axis screw rod 32, wherein the Y-axis motor 31 is arranged on the lathe bed 2, the Y-axis guide rail pair 30 is symmetrically arranged on two sides of the Y-axis motor, one end of the Y-axis screw rod 32 is connected with the output end of the Y-axis motor 31, and the other end of the Y-axis screw rod is fixed through a bearing.
The implementation principle under this embodiment is: the X-axis platform 2 and the Y-axis platform 3 provide basic conditions for machining in the horizontal direction, and due to the cooperation of the lead screw and the guide rail pair, the X-axis platform 2 and the Y-axis platform 3 provide stable feeding speed, feeding precision and feeding load, meanwhile, the structure has the same technical effects on other similar structures described in the invention, particularly the X-axis moving platform 23 for carrying the Z-axis platform 4, and the structure can ensure the work under the condition of high load, preferably, the motor of the invention is a high-precision high-torque servo motor so as to meet all requirements of large-platform machining, and the reversing process of the electrode cutting wire comprises high frequency breaking, speed reducing, stopping, counter starting, accelerating to set speed and high frequency, and the running speed of the electrode cutting wire can be switched among 13 gear positions of 1m/s, 2m/s, 3m/s … … m/s and the like, and the reversing time does not exceed 2 seconds.
As shown in fig. 4, in a preferred embodiment, the bottom end of the Z-axis platform 4 is disposed on the X-axis moving platform 23, and includes a Z-axis motor 40, a Z-axis screw 41, a Z-axis moving platform 42, and a Z-axis guide pair 43, where the Z-axis motor 40 is disposed at the top end of the Z-axis platform 4, the Z-axis screw 41 is vertically connected to the output end of the Z-axis motor 40 downward, the other end of the Z-axis screw 41 is fixed to the bottom end of the Z-axis platform 4 through a bearing, the Z-axis guide pair 43 is symmetrically disposed on two sides of the Z-axis screw 41, the Z-axis moving platform 42 is disposed through the Z-axis screw 41, and two side frames of the Z-axis moving platform 42 are disposed on the Z-axis guide pair 43.
The implementation principle under this embodiment is: the Z-axis platform 4 provides a change in the Z-axis direction, and the Z-axis motor 40 drives the Z-axis screw 41, so that the Z-axis moving platform 42 acting on the electrode cutting wire can move in the Z-axis direction, specifically, the vertical direction, on the track surface of the Z-axis guide rail pair 43, and further, the invention can have higher degree of freedom compared with the general linear cutting device.
As shown in fig. 5, in a preferred embodiment, the UV-axis moving device 5 includes a U-axis moving portion 50 and a V-axis moving portion 51, the U-axis moving portion 50 includes a U-axis guide rail pair 500, a U-axis motor 501, a U-axis screw 502, and a U-axis moving platform 503, the U-axis motor 501 is disposed on one side of the Z-axis moving platform 42, one end of the U-axis screw 502 is connected to an output end of the U-axis motor 501, the other end is fixed to the other side of the Z-axis moving platform 42 through a bearing, the U-axis guide rail pair 500 is symmetrically disposed on two sides of the U-axis screw 502, the U-axis moving platform 503 is in an L-shaped plate structure, a vertical surface of the U-axis moving platform is disposed on the U-axis screw 502, and two sides of the U-axis screw pair 500 are disposed on the U-axis guide rail pair 500; the V-axis moving part 51 comprises a V-axis guide rail pair 510, a V-axis motor 511 and a V-axis screw 512, wherein the V-axis motor 511 is arranged at one end of the bottom of the horizontal plane of the U-axis moving platform 503, which is far away from the bending part, the V-axis screw 512 is connected with the output end of the V-axis motor 511 and is fixed on the U-axis moving platform 503 through a bearing perpendicular to the U-axis screw 502, and the V-axis guide rail pair 510 is symmetrically arranged at two sides of the V-axis screw 512.
The implementation principle under this embodiment is: the Z-axis platform can provide Z-axis coordinate variation for processing, realize processing environments of materials with different thicknesses, and provide coordinate references for the UV-axis moving device 5 through the Z-axis moving platform 42, while the U-axis motor 501 and the Y-axis motor 511 preferably should be provided with encoders to improve precision, and the U-axis moving part 50 and the V-axis moving part 51 can drive the corresponding platforms or connectors to move through the U-axis motor 501 or the V-axis motor 511 at the positions, so as to generate offset variation of the U-axis or the V-axis, so that the invention can be applied to more kinds of processing materials and processing technologies.
As shown in fig. 6, in a preferred embodiment, the wire cylinder device 6 includes an upper wire storage cylinder portion 60 and a lower wire storage cylinder portion 61, the upper wire storage cylinder portion 60 includes an upper wire storage cylinder 600, an upper motor 601, a W-axis motor 602 and a W-axis guide rail 603, the W-axis guide rail 603 is parallel to the Y-axis screw 32 and is disposed on the Z-axis platform 4, the upper motor 601 is disposed at one end of the W-axis guide rail 603, and the upper wire storage cylinder 600 is integrally connected with the upper motor 601, is disposed on the W-axis guide rail 603, and is in transmission connection with an output end of the upper motor 601; the lower wire storage cylinder portion 61 comprises a lower wire storage cylinder 610, a lower motor 611, an F-axis motor 612 and an F-axis guide rail 613, wherein the F-axis guide rail 613 is parallel to the Y-axis screw 32 and arranged below the W-axis guide rail 603 of the Z-axis platform 4, the lower motor 611 is arranged at one end of the F-axis guide rail 613 on the same side as the upper motor 601, and the lower wire storage cylinder 610 is connected with the lower motor 611 into a whole, arranged on the F-axis guide rail 613 and in transmission connection with the output end of the lower motor 611.
The implementation principle under this embodiment is: the upper wire storage cylinder part 60 and the lower wire storage cylinder part 61 provide sources of wire material storage and tension density adjustment for the electrode cutting wires, and the relative positions of the upper wire storage cylinder 600 or the lower wire storage cylinder 610 are changed through the functions of the W-axis motor 602 and the F-axis motor 612, so that the electrode cutting wires generate different tensions and density changes of wires when being routed, thereby meeting the requirements of processing different types of materials, and providing sufficient standby wire materials when the working interval of the electrode cutting wires is problematic, and ensuring that the processing precision and efficiency are not affected.
As shown in fig. 7 and 8, in a preferred embodiment, the wire holder device 8 includes an upper wire holder 80, a lower wire holder 81 and a swinging rod 82, the upper wire holder 80 includes an upper bearing block 800, an upper transmission shaft 801, an upper connecting rod 802, an upper guide wheel 803 and an upper conductive block 804, the upper bearing block 800 is penetrated through the V-axis screw 512 and is erected on the V-axis guide rail pair 510, the upper transmission shaft 801 is penetrated in the upper bearing block 800, one end of the upper transmission shaft 801 is connected with the upper conductive block 804 and the upper guide wheel 803, and the upper guide wheel 803 is hinged with one end of the upper connecting rod 802; the lower wire frame 81 comprises a lower bearing seat 810, a lower transmission shaft 811, a lower connecting rod 812, a lower guide wheel 813 and a lower conductive block 814, wherein the lower bearing seat 810 is fixed on the same side of the Z-axis platform 4 as the upper bearing seat 800, the lower transmission shaft 811 is arranged in the lower bearing seat 810 in a penetrating way, one end of the lower transmission shaft 811 is connected with the lower conductive block 814 and the lower guide wheel 813, and the lower guide wheel 813 is hinged with one end of the lower connecting rod 812; the other end of the upper transmission shaft 801 is hinged to the other section of the upper connecting rod 802 through a swinging rod 82, and the other end of the lower transmission shaft 811 is hinged to the other section of the lower connecting rod 812 through a swinging rod 82.
The implementation principle under this embodiment is: when the upper wire frame 80 and the lower wire frame 81 do not generate displacement on the UV axis, the electrode cutting wires led out by the upper guide wheel 803 and the lower guide wheel 813 are vertical to the ground, when the UV displacement is generated, the upper wire frame 80 will deviate according to the set displacement value, under the linkage action of the swinging rod 82, the relative positions of the upper wire frame and the lower wire frame in the UV coordinate system will change within the preset range, thus taper processing can be realized, the roughness can be controlled within the range of Ra0.8, and the upper conductive block 804 and the lower conductive block 814 provide current required by the working for the electrode cutting wires through the connecting circuit.
As shown in fig. 9, in a preferred embodiment, the swing rod assembly 9 includes a swing rod motor 90, an encoder 91, a swing rod 92, an upper wire discharge guide wheel 93, a lower wire discharge guide wheel 94 and an auxiliary guide wheel set 95, the swing rod motor 90 is disposed between the Z-axis platform 4 and the wire cylinder device 6, an output end of the swing rod motor 90 is connected with the swing rod 92 through the encoder 91, an auxiliary guide wheel 96 is disposed on a swing arm of the swing rod 92, an auxiliary guide wheel set 95 is disposed on a side of the swing rod 92 close to the wire cylinder device 6, a lower wire discharge guide wheel 94 is disposed between the auxiliary guide wheel set 95 and the wire cylinder device 6, an upper wire discharge guide wheel 93 is disposed above the lower wire discharge guide wheel 94, and the number of guide wheels of the auxiliary guide wheel set 95 is not less than 2.
The implementation principle under this embodiment is: in the swing rod assembly 9, the electrode cutting wires led out of the wire cylinder device 6 are conveyed back and forth by the upper wire arranging guide wheel 93 and the lower wire arranging guide wheel 95, the electrode cutting wires can keep a set degree of density in the moving process, the auxiliary guide wheel set 95 assists the electrode cutting wires to stably run and conduct, the swing rod 92 is driven by the swing rod motor 90, the posture state is recorded in real time through the encoder 91, so that the posture amplitude of the swing rod 92 can be adjusted according to a set program, the tension of the electrode cutting wires can be finely adjusted at any time, the change amplitude of the tension can be controlled at 0.005N/s, the machining precision and the machining speed can be guaranteed, and the production efficiency can be maximized.
As shown in fig. 7 and 8, in a preferred embodiment, an upper wire guide 805 is disposed at the hinge of the upper guide 803 and the upper link 802, and a lower wire guide 815 is disposed at the hinge of the lower guide 813 and the lower link 812.
The implementation principle under this embodiment is: the upper wire guide 805 and the lower wire guide 815 can enable the electrode cutting wire to smoothly perform reciprocating cutting operation, and the upper wire guide 805 and the lower wire guide 815 can be provided with water spray nozzles, so that the temperature of the cut materials is effectively reduced, the electrode cutting wire is prevented from being fused prematurely, and the lubrication and protection effects of the cutting edge of the cutting part are achieved.
As shown in fig. 10, the workbench 10 includes a water tank 100, a processing platform 101 and a baffle 102, the processing platform 101 is nested at the bottom of the water tank 100, the lower part of the processing platform 101 is arranged on the Y-axis screw rod 32 in a penetrating manner, two sides of the processing platform are arranged above the Y-axis guide rail pair 30, the baffle 102 is arranged at the periphery of the water tank 100, and the baffle 102 on two adjacent surfaces is provided with a drawing type hinge door 103.
The implementation principle is as follows: the workpiece to be processed is placed on the processing platform 101 for fixing, and water is usually required to be sprayed during wire cutting, so that the water can be effectively prevented from being sprayed everywhere through the water tank 100 and the baffle plate 102, and materials can enter and exit through the drawing type loose-leaf door 103.
The X-axis platform 2, the Y-axis platform 3 and the Z-axis platform 4 are respectively provided with a dust cover 12, the servo driving unit 11 is connected with the X-axis platform 2, the Y-axis platform 3, the Z-axis platform 4, the UV-axis moving device 5, the wire cylinder device 6, the wire frame device 8 and the swing rod assembly 9 through circuits, and the operation panel 7 is connected with the servo driving unit 11 through circuits.
The implementation principle is as follows: the servo driving unit 11 is operated through the operation panel 7, the whole operation of the equipment is realized, the set operation system and the processing programming are matched, so that the efficient high-precision processing of different materials is realized, the dust cover 12 can prevent waste materials, waste water and pollutants in the air during processing from entering the working space of the servo motor, and the processing process is prevented from being influenced.
The invention has the beneficial effects that: the linear cutting machining platform with 8 shafts is used, the shafts are coordinated and matched with each other, the tension variation amplitude of the electrode cutting wire in the working engineering is stabilized, and simultaneously, the posture of the electrode cutting wire in the working process can be adjusted according to requirements, so that the material type, the size range, the machining precision, the machining stability and the like of the electrode cutting wire are greatly improved compared with those of the traditional product, the manual quantity in the working engineering is reduced, and the comprehensive production efficiency is improved by not less than 30%.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (3)
1. Seven-axis linkage linear cutting equipment comprises a lathe bed and is characterized in that the lathe bed is provided with an X-axis platform, a Y-axis platform and a Z-axis platform, the Z-axis platform is provided with a UV (ultraviolet) axis moving device, a wire barrel device and an operation panel, the UV axis moving device is provided with a wire frame device, the wire barrel device is provided with a swing rod assembly, a workbench is arranged above the lathe bed, a servo driving unit is arranged below the lathe bed, and the wire barrel device forms a cutting loop with the wire frame device through an electrode cutting wire;
The X-axis platform is arranged in the middle of the Y-axis platform and comprises an X-axis guide rail pair, an X-axis motor, an X-axis screw rod and an X-axis moving platform, wherein the center line of the X-axis moving platform is arranged on the X-axis screw rod in a penetrating way, two ends of the X-axis moving platform are arranged on the X-axis guide rail pair arranged on the bed body at two sides in a erecting way, one end of the X-axis screw rod is connected with the output end of the X-axis motor arranged on the bed body, and the other end of the X-axis screw rod is fixed through a bearing; the Y-axis platform comprises a Y-axis guide rail pair, a Y-axis motor and a Y-axis screw rod, wherein the Y-axis motor is arranged on the lathe bed, the Y-axis guide rail pair is symmetrically arranged at two sides of the Y-axis motor, one end of the Y-axis screw rod is connected with the output end of the Y-axis motor, and the other end of the Y-axis screw rod is fixed through a bearing;
The bottom end of the Z-axis platform is arranged on the X-axis moving platform and comprises a Z-axis motor, a Z-axis screw rod, a Z-axis moving platform and a Z-axis guide rail pair, wherein the Z-axis motor is arranged at the top end of the Z-axis platform, the Z-axis screw rod is vertically and downwards connected to the output end of the Z-axis motor, the other end of the Z-axis screw rod is fixed at the bottom end of the Z-axis platform through a bearing, the Z-axis guide rail pair is symmetrically arranged on two sides of the Z-axis screw rod, the Z-axis moving platform penetrates through the Z-axis screw rod, and two side frames of the Z-axis moving platform are arranged on the Z-axis guide rail pair;
The UV shaft moving device comprises a U shaft moving part and a V shaft moving part, wherein the U shaft moving part comprises a U shaft guide rail pair, a U shaft motor, a U shaft screw and a U shaft moving platform, the U shaft motor is arranged on one side of the Z shaft moving platform, one end of the U shaft screw is connected with the output end of the U shaft motor, the other end of the U shaft screw is fixed on the other side of the Z shaft moving platform through a bearing, the U shaft guide rail pair is symmetrically arranged on two sides of the U shaft screw, the U shaft moving platform is of an L-shaped plate structure, the vertical surface of the U shaft moving platform is arranged on the U shaft screw in a penetrating manner, and the two sides of the U shaft guide rail pair are erected on the U shaft guide rail pair; the V-axis moving part comprises a V-axis guide rail pair, a V-axis motor and a V-axis screw rod, the V-axis motor is arranged at one end, far away from the bending part, of the bottom of the horizontal plane of the U-axis moving platform, the V-axis screw rod is connected with the output end of the V-axis motor and is perpendicular to the U-axis screw rod through a bearing to be fixed on the U-axis moving platform, and the V-axis guide rail pair is symmetrically arranged at two sides of the V-axis screw rod;
The wire cylinder device comprises an upper wire cylinder storage part and a lower wire cylinder storage part, wherein the upper wire cylinder storage part comprises an upper wire cylinder, an upper motor, a W-axis motor and a W-axis guide rail, the W-axis guide rail is arranged on a Z-axis platform in parallel with a Y-axis screw rod, the upper motor is arranged at one end of the W-axis guide rail, and the upper wire cylinder and the upper motor are connected into a whole, are arranged on the W-axis guide rail and are in transmission connection with the output end of the upper motor; the lower wire storage cylinder part comprises a lower wire storage cylinder, a lower motor, an F-axis motor and an F-axis guide rail, wherein the F-axis guide rail is parallel to a Y-axis screw rod and arranged below a W-axis guide rail of the Z-axis platform, the lower motor is arranged at one end of the F-axis guide rail on the same side as the upper motor, and the lower wire storage cylinder is connected with the lower motor into a whole, is arranged on the F-axis guide rail and is in transmission connection with the output end of the lower motor;
The wire frame device comprises an upper wire frame, a lower wire frame and a swinging rod, wherein the upper wire frame comprises an upper bearing seat, an upper transmission shaft, an upper connecting rod, an upper guide wheel and an upper conductive block, the upper bearing seat is arranged on a V-axis lead screw in a penetrating manner and is erected on a V-axis guide rail pair, the upper transmission shaft is arranged in the upper bearing seat in a penetrating manner, one end of the upper transmission shaft is connected with the upper conductive block and the upper guide wheel, and the upper guide wheel is hinged with one end of the upper connecting rod; the lower wire frame comprises a lower bearing seat, a lower transmission shaft, a lower connecting rod, a lower guide wheel and a lower conductive block, wherein the lower bearing seat is fixed on the same side of the Z-axis platform as the upper bearing seat, the lower transmission shaft penetrates through the lower bearing seat, one end of the lower transmission shaft is connected with the lower conductive block and the lower guide wheel, and the lower guide wheel is hinged with one end of the lower connecting rod; the other end of the upper transmission shaft is hinged with the other section of the upper connecting rod through a swinging rod, and the other end of the lower transmission shaft is hinged with the other section of the lower connecting rod through a swinging rod;
The swing rod assembly comprises a swing rod motor, an encoder, a swing rod, an upper wire discharge guide wheel, a lower wire discharge guide wheel and an auxiliary guide wheel set, wherein the swing rod motor is arranged between the Z-axis platform and the wire cylinder device, the output end of the swing rod motor is connected with the swing rod through the encoder, the swing arm of the swing rod is provided with the auxiliary guide wheel set, one side of the swing rod, which is close to the wire cylinder device, is provided with the auxiliary guide wheel set, the lower wire discharge guide wheel set is arranged between the auxiliary guide wheel set and the wire cylinder device, the upper wire discharge guide wheel set is arranged above the lower wire discharge guide wheel, and the number of the guide wheels of the auxiliary guide wheel set is not less than 2;
An upper wire guide is arranged at the joint of the upper guide wheel and the upper connecting rod, and a lower wire guide is arranged at the joint of the lower guide wheel and the lower connecting rod.
2. The seven-axis linkage linear cutting device according to claim 1, wherein the workbench comprises a water tank, a processing platform and baffles, the processing platform is nested at the bottom of the water tank all around, the lower part of the processing platform is arranged on a Y-axis lead screw in a penetrating manner, two sides of the processing platform are arranged on a Y-axis guide rail pair in a erecting manner, the baffles are arranged at the periphery of the water tank, and the baffles on two adjacent surfaces are provided with drawing type loose-leaf doors.
3. The seven-axis linkage linear cutting device according to claim 1, wherein the X-axis platform, the Y-axis platform and the Z-axis platform are all provided with dust covers, the servo driving unit is connected with the X-axis platform, the Y-axis platform, the Z-axis platform, the UV-axis moving device, the wire cylinder device, the wire frame device and the swing rod assembly through circuits, and the operation panel is connected with the servo driving unit through circuits.
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| EP0211085B1 (en) * | 1985-01-18 | 1991-05-02 | Inoue Japax Research Incorporated | Wire-cutting electric discharge processing method and apparatus |
| CN2178579Y (en) * | 1993-11-03 | 1994-10-05 | 中国科学院电工研究所 | Multifunction electrod cutting lathe for electric spark wire |
| CN102350551B (en) * | 2011-09-29 | 2013-03-27 | 李二强 | Wire-feed twin-wire exchange wire feeding system in WEDM (wire cut electrical discharge machining) |
| CN103406622B (en) * | 2013-08-22 | 2016-01-06 | 苏州科技学院 | A kind of mariages cylinder multilayer wrapping wire to-and-fro thread silk drive mechanism of linear cutting machine |
| CN205551703U (en) * | 2016-03-05 | 2016-09-07 | 上饶市江旺数控机床制造有限公司 | Electric spark wire -electrode cutting machine tool |
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Effective date of registration: 20240726 Address after: 511300 first floor of C1, high tech industrial base (plant) in the east of Zengjiang street, Zengcheng District, Guangzhou, Guangdong Patentee after: Guangzhou jingyuetai Technology Co.,Ltd. Country or region after: China Address before: No. 61, Donglitun Village, Litun Administrative Village, Shawo Township, Dongming County, Heze City, Shandong Province, 274500 Patentee before: Dongguan Jingchuang Intelligent Equipment Co.,Ltd. Country or region before: China |
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