CN107186297B - Precise electrode numerical control electric spark machining device and machining method - Google Patents
Precise electrode numerical control electric spark machining device and machining method Download PDFInfo
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- CN107186297B CN107186297B CN201710521706.6A CN201710521706A CN107186297B CN 107186297 B CN107186297 B CN 107186297B CN 201710521706 A CN201710521706 A CN 201710521706A CN 107186297 B CN107186297 B CN 107186297B
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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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model provides a precision electrode numerical control electric spark processingequipment and processing method, includes host computer seat, stand, L type stand, Z axle guide rail seat, Z axle driving motor, workstation, Y axle guide rail, Y axle lead screw pair, Y axle driving motor, Z axle carousel, servo main shaft, seal wire mechanism, X axle guide rail, X axle driving motor etc. the host computer seat be its main part supporter, the stand is fixed on the host computer seat, L type stand is fixed on the stand, Z axle carousel is connected with the connection pad and is locked through Z axle carousel fastening bolt, Y axle guide rail and Z axle guide rail and X guide rail mutually perpendicular, set up Y axle driving motor in the host computer seat right-hand member, fixed X axle guide rail slide and X axle lead screw below the workstation, X axle driving motor passes through the coupling with X axle lead screw and connects. The invention is applied to precise numerical control electric spark machining of complex and low-rigidity parts, can realize machining of parts with complex structures such as revolution bodies, non-revolution bodies, low rigidity, high strength and the like, and is applied to the technical field of non-traditional machining.
Description
Technical Field
The invention relates to a precise electrode numerical control electric spark machining device and a machining method in the technical field of non-traditional machining.
Background
At present, the micro electric spark machining has the flexible non-contact machining advantage of high material selection, has a unique process in micro machining, and particularly has outstanding advantages in machining, material performance, high aspect ratio and the like. The micro electric spark is widely applied to important fields such as micropores, diaphragms, molds and the like on aviation equipment, medical equipment and microelectronic devices. The fabrication of tool electrodes has become one of the key technologies that have affected the progress of microfabrication technology to practical use.
The micro electric spark machining is mainly an electric spark forming machining method and an electric spark wire cutting method, and the electric spark machining technology is widely applied in multiple subjects and fields at present. But for some special requirements parts processing such as: the machining of the variable-section micro parts and the stepped parts with different section shapes cannot meet the requirements, and even cannot be performed. Therefore, by applying the characteristics that the tool workpiece in the metal material is not contacted by utilizing the electrode discharge in the electric spark machining, no obvious cutting force is generated in the machining process, and the cutting heat influence is small, the research of the precise numerical control electric spark machining method for machining the parts with complex structures and fine low rigidity has very important significance. Therefore, research and development of a precision electrode numerical control electric spark machining device and a machining method are always new problems to be solved.
Disclosure of Invention
The invention aims to provide a precise electrode numerical control electric spark machining device and a machining method, which are applied to precise numerical control electric spark machining of complex and low-rigidity parts, can realize machining of parts with a complex structure and low rigidity and high strength, and meet the requirements of scientific research and production development.
The purpose of the invention is realized in the following way: a precision electrode numerical control electric spark machining device comprises a machine tool body part, a wire electrode machining part, a power supply and a control system part, and comprises a main machine seat, a stand column seat, an L-shaped stand column, a connecting disc, a Z-axis guide rail seat, a Z-axis screw pair, a Z-axis synchronous pulley assembly, a Z-axis driving motor, a Z-axis connecting frame, a Z-axis guide rail, a main shaft power supply connecting terminal, a main shaft chuck, a workbench, a Y-axis guide rail, a Y-axis screw pair, a Y-axis driving motor, a Z-axis turntable fastening bolt, a front protective cover, a servo main shaft, a pulse power supply, a guide wire mechanism, an X-axis guide rail, an X-axis screw pair, an X-axis driving motor, a coupler and a screw seat, wherein the main machine seat is a main body support body, the stand column seat is fixed on the main machine seat, the L-shaped stand column is fixed on the stand column seat, an annular groove at the upper end of the stand column seat is connected with the connecting disc, the Z-axis turntable is connected with the connecting disc and locked by a Z-axis turntable fastening bolt, the upper end of the upright post seat is a circular disc, an open-loop groove is formed in the circular disc, a Y-axis guide rail is mutually perpendicular to the Z-axis guide rail and the X-axis guide rail, a guide rail seat and a screw seat are arranged on the connecting disc, the guide rail seat is connected with a Z-axis screw pair, the Z-axis screw pair is connected with a Z-axis connecting frame and the Z-axis guide rail, a Z-axis synchronous belt wheel assembly and a Z-axis driving motor are arranged on the Z-axis connecting frame, a front protective cover, a servo spindle and a pulse power supply are arranged on the right part of the Z-axis connecting frame, a spindle power supply connecting terminal and a spindle chuck are arranged on the servo spindle, a Y-axis driving motor is arranged on the right end of the main seat, an X-axis guide rail slide seat and an X-axis screw are fixed below the workbench, the X-axis driving motor and the X-axis screw pair are fixed on a platform of the main seat through a coupling, one end of an output pulse electric signal of the pulse power supply is connected with the main shaft power supply connecting terminal;
the wire guiding mechanism consists of a wire guiding frame, a wire guiding cylinder motor, a shaft coupling, an electrode wire, a wire guiding steering wheel, a wire guiding power supply wheel, a wire guiding working wheel, a Zuo Zhangli control wheel, a left wire guiding cylinder, a right wire guiding cylinder and a right tension control wheel, wherein the wire guiding mechanism is fixed on a workbench through a U-shaped hole B of the wire guiding frame;
the working principle of the precise electrode numerical control electric spark machining device is as follows: the guide rail seat and the screw seat are arranged on the connecting disc, the Z-axis screw pair is driven by the Z-axis driving motor to rotate, the servo spindle moves up and down, the X-axis guide rail and the X-axis screw are fixed below the workbench, the X-axis driving motor is connected with the X-axis screw through a coupler, the X-axis screw is driven to rotate to drive the workbench to move along the X-axis, one end of an output pulse electric signal of the pulse power supply is connected with a main shaft power supply connecting terminal, power is supplied to a workpiece clamped on the servo spindle through the servo spindle in the axial direction, the other end of the output pulse electric signal is supplied with power through a guide wire power supply wheel in the guide wire mechanism, a discharging loop is formed, and the wire cylinder motor drives the left wire cylinder and the right wire cylinder to rotate respectively to retract and release electrode wires; the electrode between the two guide wire working wheels is an electrode working section;
the machining method of the precise electrode numerical control electric spark machining device comprises the following steps: the workpiece is connected with the main shaft through the chuck to ensure the rotation precision, the gravity generates bending, the machining tool is a wire electrode, the wire electrode is fixed on the workbench, the workpiece moves in a rotation and up-down motion, and during machining, the wire electrode and the workpiece are subjected to non-contact electric discharge machining to ensure that the workpiece is not subjected to cutting force and cutting heat during machining, and during machining, the wire electrode can carry out generating machining on any section on the workpiece to carry out machining on complex curved surfaces of the workpiece.
The key point of the invention is its structure and working principle and processing method.
Compared with the prior art, the precise electrode numerical control electric spark machining device and the machining method have the advantages that the precise electrode numerical control electric spark machining device and the machining method are applied to precise numerical control electric spark machining of complex and low-rigidity parts, can realize machining of parts with complex structures such as revolving bodies, non-revolving bodies, low rigidity and high strength, meet the requirements of scientific research and production development, and are widely applied to the technical field of non-traditional machining.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is A-A view of fig. 2.
Fig. 4 is a view in the K-direction of fig. 1.
Fig. 5 is a schematic view of the structure of the guide wire mechanism portion of the present invention.
Fig. 6 is a right side view of fig. 5.
Fig. 7 is a top view of fig. 6.
Detailed Description
Referring to the drawings, the precision electrode numerical control electric spark machining device consists of a machine tool body part, a wire electrode machining part, a power supply and control system part, and comprises a main machine seat 1, a stand column seat 2, an L-shaped stand column 3, a connecting disc 4, a Z-axis guide rail seat 5, a Z-axis guide screw pair 6, a Z-axis synchronous belt pulley assembly 7, a Z-axis driving motor 8, a Z-axis connecting frame 9, a Z-axis guide rail 10, a main shaft power supply connecting terminal 11, a main shaft chuck 12, a workbench 13, a Y-axis guide rail 14, a Y-axis guide screw pair 15, a Y-axis driving motor 16, a Z-axis turntable 17, a Z-axis turntable fastening bolt 18, a front protective cover 19, a servo main shaft 20, a pulse power supply 21, a guide wire mechanism 22, an X-axis guide rail 23, an X-axis guide screw pair 24, an X-axis driving motor 25, a coupler 26 and a guide screw seat 27, wherein the main machine seat 1 is a main body supporting body, the column seat 2 is fixed on the main seat 1, the L-shaped column 3 is fixed on the column seat 2, an annular groove at the upper end of the column seat 2 is connected with the connecting disc 4, the Z-axis rotary disc 17 is connected with the connecting disc 4 and is locked by a Z-axis rotary disc fastening bolt 18, the upper end of the column seat 2 is a circular disc, an annular groove is arranged on the circular disc, the Y-axis guide rail 14 is mutually perpendicular to the Z-axis guide rail 10 and the X-axis guide rail 23, the connecting disc 4 is provided with the guide rail seat 5 and the screw seat 27, the guide rail seat 5 is connected with the Z-axis screw pair 6, the Z-axis screw pair 6 is connected with the Z-axis connecting frame 9 and the Z-axis guide rail 10, the Z-axis synchronous pulley assembly 7 and the Z-axis driving motor 8 are arranged on the Z-axis connecting frame 9, the front protective cover 19, the servo spindle 20 and the pulse power source 21 are arranged on the right part of the Z-axis connecting frame 9, the spindle power supply connecting terminal 11 and the spindle chuck 12 are arranged on the right end of the main seat 1, an X-axis guide rail sliding seat 23 and an X-axis screw 24 are fixed below the workbench 13, an X-axis driving motor 25 is connected with the X-axis screw 24 through a coupler 26, a Y-axis guide rail 14 and a Y-axis screw pair 15 are fixed on a platform of the main machine base 1, and one end of an output pulse electric signal of the pulse power supply 21 is connected with the main shaft power supply connecting terminal 11.
The wire guiding mechanism 22 consists of a wire guiding frame 22-1, a wire cylinder motor 22-2, a coupler 22-3, an electrode wire 22-4, a wire guiding steering wheel 22-5, a wire guiding power supply wheel 22-6, a wire guiding working wheel 22-7, a left tension control wheel 22-8, a left wire cylinder 22-9, a right wire cylinder 22-10 and a right tension control wheel 11, wherein the wire guiding mechanism 22 is fixed on a workbench 13 through a U-shaped hole B of the wire guiding frame, two wire cylinder motors 22-2 are arranged on the wire guiding frame 22-1, the two wire cylinder motors 22-2 are respectively connected with the two couplers 22-3, the two couplers 22-3 are respectively connected with the left wire cylinder 22-9 and the right wire cylinder 22-10, and the electrode wire 22-4 on the left wire cylinder 22-9 bypasses the left tension control wheel 22-8, the wire guiding wheel 22-5, the wire guiding power supply wheel 22-6, the wire guiding working wheel 22-7, the wire guiding power supply wheel 22-6, the wire guiding steering wheel 22-6 and the wire guiding steering wheel 11.
The working principle of the precise electrode numerical control electric spark machining device is as follows: the connecting disc 4 is provided with a guide rail seat 5 and a screw seat 27, a Z-axis screw pair 6 is driven by a Z-axis driving motor 8 to rotate, a servo spindle 20 moves up and down, an X-axis guide rail 23 and an X-axis screw 24 are fixed below the workbench 13, an X-axis driving motor 25 is connected with the X-axis screw 24 through a coupler 26, the X-axis screw 24 is driven to rotate to drive the workbench 13 to move along the X axis, one end of an output pulse electric signal of a pulse power supply 21 is connected with a spindle power supply connecting terminal 11, power is supplied to a workpiece clamped on the servo spindle 20 through the servo spindle 20, the other end of the pulse electric signal is supplied with power through a guide wire power supply wheel 22-6 in a guide wire mechanism 21 to form a discharge loop, and a wire cylinder motor 22-2 drives a left wire cylinder 22-9 and a right wire cylinder 22-10 to rotate respectively to receive and release electrode wires 22-4; the electrode between the two wire wheels 22-7 is the electrode working section.
The machining method of the precise electrode numerical control electric spark machining device comprises the following steps: the workpiece is connected with the main shaft through the chuck to ensure the rotation precision, because the gravity generates bending, the processing tool is a wire electrode, the wire electrode is fixed on the workbench 13, the movement of the workpiece is rotation and up-down movement, and during processing, the wire electrode and the workpiece are in non-contact electric discharge machining, so that the workpiece is ensured to be free of cutting force and little in cutting heat influence during processing, and during processing, the wire electrode can perform generating processing on any section on the workpiece to process complex curved surfaces of the workpiece.
Claims (2)
1. A processing method of a precision electrode numerical control electric spark processing device is characterized in that: the machining method of the precise electrode numerical control electric spark machining device comprises the following steps: the workpiece is connected with the main shaft through the chuck, so that the rotation precision of the workpiece is ensured, the machining tool is a wire electrode which is fixed on the workbench because of the bending generated by gravity, the workpiece moves rotationally and vertically, and during machining, the wire electrode and the workpiece are subjected to non-contact electric discharge machining, so that the workpiece is ensured not to generate cutting force and have little influence on cutting heat during machining, and during machining, the wire electrode can carry out generating machining on any section on the workpiece to carry out machining on complex curved surfaces of the workpiece; the precision electrode numerical control electric spark machining device consists of a machine tool body part, a wire electrode machining part, a power supply and control system part, and comprises a main machine seat, a stand column seat, an L-shaped stand column, a connecting disc, a Z-axis guide rail seat, a Z-axis screw pair, a Z-axis synchronous belt wheel assembly, a Z-axis driving motor, a Z-axis connecting frame, a Z-axis guide rail, a main shaft power supply connecting terminal, a main shaft chuck, a workbench, a Y-axis guide rail, a Y-axis screw pair, a Z-axis turntable fastening bolt, a front protective cover, a servo main shaft, a pulse power supply, a guide wire mechanism, an X-axis guide rail, an X-axis screw pair, an X-axis driving motor, a coupler and a screw seat, wherein the main machine seat is a main body support body, the stand column seat is fixed on the main machine seat, the L-shaped stand column is fixed on the stand column seat, an annular groove at the upper end of the stand column seat is connected with the connecting disc, the Z-axis turntable is connected with the connecting disc and locked by a Z-axis turntable fastening bolt, the upper end of the upright post seat is a circular disc, an open-loop groove is formed in the circular disc, a Y-axis guide rail is mutually perpendicular to the Z-axis guide rail and the X-axis guide rail, a guide rail seat and a screw seat are arranged on the connecting disc, the guide rail seat is connected with a Z-axis screw pair, the Z-axis screw pair is connected with a Z-axis connecting frame and the Z-axis guide rail, a Z-axis synchronous belt wheel assembly and a Z-axis driving motor are arranged on the Z-axis connecting frame, a front protective cover, a servo spindle and a pulse power supply are arranged on the right part of the Z-axis connecting frame, a spindle power supply connecting terminal and a spindle chuck are arranged on the servo spindle, a Y-axis driving motor is arranged on the right end of the main seat, an X-axis guide rail slide seat and an X-axis screw are fixed below the workbench, the X-axis driving motor and the X-axis screw pair are fixed on a platform of the main seat through a coupling, one end of an output pulse electric signal of the pulse power supply is connected with the main shaft power supply connecting terminal; the wire guiding mechanism consists of a wire guiding frame, a wire guiding cylinder motor, a shaft coupling, an electrode wire, a wire guiding steering wheel, a wire guiding power supply wheel, a wire guiding working wheel, a left tension control wheel, a left wire guiding cylinder, a right wire guiding cylinder and a right tension control wheel, wherein the wire guiding mechanism is fixed on a workbench through a U-shaped hole B of the wire guiding frame, two wire guiding cylinder motors are arranged on the wire guiding frame and are respectively connected with the two shaft couplings, the two shaft couplings are respectively connected with the left wire guiding cylinder and the right wire guiding cylinder, and an electrode wire on the left wire guiding cylinder bypasses the left tension control wheel, the wire guiding steering wheel, the wire guiding power supply wheel, the wire guiding working wheel, the wire guiding power supply wheel, the wire guiding steering wheel, the right tension control wheel and the right wire guiding cylinder.
2. The method for machining the precision electrode numerical control electric spark machining device according to claim 1, wherein the machining method comprises the following steps of: the working principle of the precise electrode numerical control electric spark machining device is as follows: the guide rail seat and the screw seat are arranged on the connecting disc, the Z-axis screw pair is driven by the Z-axis driving motor to rotate, the servo spindle moves up and down, the X-axis guide rail and the X-axis screw are fixed below the workbench, the X-axis driving motor is connected with the X-axis screw through a coupler, the X-axis screw is driven to rotate to drive the workbench to move along the X-axis, one end of an output pulse electric signal of the pulse power supply is connected with a main shaft power supply connecting terminal, power is supplied to a workpiece clamped on the servo spindle through the servo spindle in the axial direction, the other end of the output pulse electric signal is supplied with power through a guide wire power supply wheel in the guide wire mechanism, a discharging loop is formed, and the wire cylinder motor drives the left wire cylinder and the right wire cylinder to rotate respectively to retract and release electrode wires; the electrode between the two guide wire working wheels is an electrode working section.
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| CN201710521706.6A CN107186297B (en) | 2017-06-30 | 2017-06-30 | Precise electrode numerical control electric spark machining device and machining method |
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| CN201710521706.6A CN107186297B (en) | 2017-06-30 | 2017-06-30 | Precise electrode numerical control electric spark machining device and machining method |
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| CN107186297A CN107186297A (en) | 2017-09-22 |
| CN107186297B true CN107186297B (en) | 2023-08-18 |
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| CN110153966A (en) * | 2018-02-13 | 2019-08-23 | 苏州宝时得电动工具有限公司 | Hand held power machine |
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