CN112846427A - Operation method of electric spark machining guide device - Google Patents
Operation method of electric spark machining guide device Download PDFInfo
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- CN112846427A CN112846427A CN202110001642.3A CN202110001642A CN112846427A CN 112846427 A CN112846427 A CN 112846427A CN 202110001642 A CN202110001642 A CN 202110001642A CN 112846427 A CN112846427 A CN 112846427A
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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
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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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses an operation method of an electric spark machining guide device, which comprises an electrode clamp head, wherein an adjusting connecting rod is fixedly arranged on one side of the electrode clamp head, a movable sleeve is arranged on the outer side of the adjusting connecting rod, a transmission gear is fixedly arranged on the outer surface of the movable sleeve, an adjusting gear is arranged on one side of the transmission gear, a translation knob is fixedly arranged in the middle of the adjusting gear in a penetrating manner, a rotary connecting block is arranged on the outer side of the translation knob, a rotary scroll rod is fixedly arranged on the surface of one side of the rotary connecting block, and a lifting slide block is arranged on the outer side of the rotary scroll rod. The invention can adjust the direction of the tool electrode in the electric spark machining process by installing the adjusting connecting rod, the rotary connecting block, the rotary scroll rod, the angle adjusting turbine and the motor, so that the tool electrode can machine a chute without an angle, the machining precision of a workpiece is ensured, and the working efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of electric sparks, in particular to an operation method of an electric spark machining guide device.
Background
With the rapid development of social and economic science, electric spark is a machining process, mainly utilizes an electric discharge tool electrode (EDM tool electrode) with a specific geometric shape to burn the geometric shape of the tool electrode on a metal (conductive) part, and an electric spark machining guide device refers to a device for guiding and positioning the tool electrode for electric spark machining.
However, in the conventional tool electrode for electric discharge machining, after being clamped and fixed, the tool electrode needs to be well clamped and enable the positioning surface of the tool electrode handle and the tool electrode to use the same process standard in the electric discharge machining. The main shaft head of the electric spark forming machine tool is provided with a horizontal reference surface, the positioning surface of the tool electrode is attached to the horizontal reference surface of the main shaft head, the tool electrode realizes natural correction, cannot realize angle adjustment and is not suitable for processing the side chute of a workpiece.
CN102489801A discloses an adjustable electric spark tool electrode guiding device, which precisely adjusts the position precision of a tool electrode by the clearance fit between a boss of a transverse adjusting base and a groove of a transverse adjusting plate and the clearance fit between a groove of a longitudinal adjusting plate and the lower surface of a tool electrode mounting seat and a boss of the upper surface of a longitudinal adjusting base, improves the processing quality of parts, reduces the tool electrode loss, reduces the labor intensity of workers, improves the production efficiency, is inconvenient for adjusting the processing angle, and is still not beneficial to processing side edge chutes of workpieces; therefore, the existing requirements are not met, and a cooling liquid-based electric discharge machining guide device is provided, so that a good guide function can be realized, and the side inclined groove of a workpiece can be processed.
Disclosure of Invention
The invention aims to provide an operation method of an electric spark machining guide device, which comprises an electrode clamp head, wherein one side of the electrode clamp head is fixedly provided with an adjusting connecting rod, the outer side of the adjusting connecting rod is provided with a movable sleeve, the outer surface of the movable sleeve is fixedly provided with a transmission gear, one side of the transmission gear is provided with an adjusting gear, the middle of the adjusting gear is fixedly provided with a translation knob in a penetrating way, the outer side of the translation knob is provided with a rotary connecting block, the surface of one side of the rotary connecting block is fixedly provided with a rotary scroll rod, the outer side of the rotary scroll rod is provided with a lifting slide block, one end of the lifting slide block is movably provided with a motor in a penetrating way, the motor is inserted above the end part of the lifting slide block and is provided with an angle adjusting turbine, a threaded sleeve is movably arranged in the middle of the lifting slider, a threaded sleeve turbine is fixedly arranged on the outer surface of the threaded sleeve, a lifting knob is arranged on one side of the threaded sleeve turbine, one end of the lifting knob penetrates through the lifting slider and extends to the outside of the lifting slider, a machine tool fixture connecting rod penetrates through the middle of the threaded sleeve, two ends of the machine tool fixture connecting rod both penetrate through the lifting slider, an upper contact and a lower contact are arranged at the front end of the electrode fixture head, the central lines of the upper contact and the lower contact are perpendicular to the axis of the adjusting connecting rod, the interior of the contact is of a cavity structure, the front end of the contact is of a cone structure, a through hole is formed in the tail end of a cone of the contact, a fixed contact piece is fixed in the contact, a movable insulating rigid ball is arranged in the cone of the contact, and a movable moving, the movable contact is connected with the inner wall of the cone through a plurality of springs, the springs pull the movable contact to press the part of the insulating rigid ball to be exposed out of the through hole, and when the insulating rigid ball is extruded from the outside, the movable contact is contacted with the fixed contact to generate a closing signal; the operation method comprises the following steps:
the motor is controlled manually, the motor drives the angle adjusting turbine to rotate, and then drives the adjusting connecting rod to rotate, so that the end face of the electrode clamp head is basically aligned with the inclined end face, then the motor is set to be in a self-adjusting state, the motor can perform self-adjusting rotation according to the contact condition of the upper contact and the lower contact in the self-adjusting state, then the adjusting translation knob drives the adjusting gear to rotate so that the transmission gear and the moving sleeve synchronously rotate, at the moment, the moving sleeve can drive the adjusting connecting rod to perform transverse feeding through thread transmission between the moving sleeve and the adjusting connecting rod, because the central lines of the upper contact and the lower contact are vertical to the axis of the adjusting connecting rod, in the feeding process of the adjusting connecting rod, one of the two contacts is firstly contacted with the inclined end face of the workpiece, when the upper contact is firstly contacted with the inclined, produce the closure signal, the motor anticlockwise rotates this moment, contact back and produce the closure signal when below contact with the workpiece surface, the motor stall, accomplish two contacts and workpiece surface's complete contact, thereby make tool electrode terminal surface and workpiece oblique terminal surface be completely parallel, contact earlier with workpiece oblique terminal surface contact and the insulating rigid ball of pressure of below removes in the contact, promote the moving contact and contact with the fixed contact piece and contact, produce the closure signal, the motor clockwise rotates this moment, contact back and produce the closure signal when the contact of top and workpiece surface, the motor stall, accomplish two contacts and workpiece surface's complete contact, thereby make tool electrode terminal surface and workpiece oblique terminal surface be completely parallel, so make the electric spark machining to workpiece oblique terminal surface.
Preferably, the outer surface of the machine tool clamp connecting rod and the inner side surface of the threaded sleeve are provided with threads with the same turning directions, and the machine tool clamp connecting rod is in threaded connection with the threaded sleeve.
Preferably, a connecting plate is arranged at the end part of the other end of the adjusting connecting rod, a guide rod penetrates through one end of the connecting plate, and one end of the guide rod is fixed on the surface of the end part of the rotating connecting block.
Preferably, one end of the rotating scroll is fixed with the rotating connecting block by welding, and a ball bearing is arranged between one end of the rotating scroll and the lifting slide block.
Preferably, fastening screws are arranged on two sides of the electrode clamp head, a tool electrode positioning groove is formed in one side of the electrode clamp head, and the fastening screws penetrate through the outer wall of the electrode clamp head and extend into the tool electrode positioning groove.
Preferably, the inner side surface of the movable sleeve and the outer side of the adjusting connecting rod are provided with threads with the same turning direction, and the movable sleeve controls the adjusting connecting rod through the threads.
Preferably, the end part of the bottom end of the machine tool fixture connecting rod is provided with a limiting plate, and the limiting plate is fixed at the bottom end of the machine tool fixture connecting rod through welding.
Preferably, when the electrode holder head holds the tool electrode, the end face of the tool electrode is spaced from the end face of the electrode holder head by a distance of 0.1mm to 0.01 mm.
Preferably, the motor is set to two adjustment modes, wherein the first mode is manual adjustment, the second mode is self-adjustment, when the electrode position mode is the second mode, the motor can perform self-adjustment rotation according to the contact condition of the upper contact and the lower contact, when the upper contact is firstly contacted with the end surface of a workpiece and presses the insulating rigid ball to move inwards the contact, the upper movable contact is contacted with the fixed contact to generate a closing signal, and at the moment, the motor rotates anticlockwise;
when the contact at the lower part is firstly contacted with the inclined end face of the workpiece and presses the insulating rigid ball to move inwards, the movable contact piece at the lower part is contacted with the fixed contact piece to generate a closing signal, and at the moment, the motor 8 rotates clockwise.
Preferably, the diameter of the insulating rigid ball is smaller than that of a through hole formed at the cone end of the contact.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention rotates the motor, the rotating scroll rod can rotate synchronously by driving the angle adjusting turbine to rotate when the motor rotates, the rotating scroll rod can drive the rotating connecting block and the adjusting connecting rod to rotate synchronously, so that the electrode clamp head and the tool electrode arranged in the middle of the electrode clamp head can adjust the angle around the rotating scroll rod until the angle of the tool electrode is consistent with the angle of a groove or a hole to be processed, then the adjusting gear is driven to rotate by the rotating translation knob to enable the transmission gear and the movable sleeve to rotate synchronously, at the moment, the movable sleeve can drive the adjusting connecting rod and the electrode clamp head to move linearly along the axis of the adjusting connecting rod through the thread transmission between the movable sleeve and the adjusting connecting rod, the initial position of the tool electrode is adjusted, the pointing direction of the tool electrode during the electric spark machining can be adjusted in angle, so that the tool electrode can machine a chute, the machining precision of the workpiece is ensured, and the working efficiency is effectively improved;
2. according to the invention, the lifting knob is rotated, and the threaded sleeve is synchronously rotated by driving the threaded sleeve turbine to rotate when the lifting knob rotates, at the moment, the threaded sleeve can move up and down along the surface of the machine tool clamp connecting rod through the thread transmission between the threaded sleeve and the machine tool clamp connecting rod, so that the lifting slider is driven to displace, the positions of the lifting slider and a rotary connecting block connected with the lifting slider through a rotary scroll rod are adjusted until the electrode clamp head and a motor placed in the middle of the electrode clamp head reach specified positions, the position of a tool electrode can be adjusted according to the height of a workpiece machining position, the tool electrode is more favorably machined, and the machining precision is ensured;
3. according to the invention, the front end of the electrode clamp head is provided with the upper contact and the lower contact, the movable insulating rigid ball is arranged in the cone of the contact, the movable moving contact is arranged in the contact at a certain distance from the fixed contact piece, the moving contact is connected with the inner wall of the cone through a plurality of springs, under the action of the springs, the moving contact presses the part of the insulating rigid ball to be exposed out of the through hole, when the insulating rigid ball is extruded from the outside, the moving contact is pushed to be contacted with the fixed contact piece to generate a closing signal, and when the upper contact and the lower contact are completely contacted with the surface of a workpiece and generate the closing signal, the end surface of the tool electrode is completely parallel to the surface of the workpiece, so that accurate correction is realized, the spark machining is better realized, the over-;
4. according to the invention, under the collision action of the electrode clamp heads, the machining gap between the tool electrode and the workpiece can be well maintained, the tool electrode is prevented from being directly contacted with the workpiece and damaging the electrode, and more beneficially, under the action of the two insulating rigid balls, the tool electrode can be conveniently maintained to be fixed in the machining gap to move during machining, so that the uniformity degree of electric spark machining is improved;
5. according to the invention, the two contacts are in complete contact with the surface of the workpiece, so that the end surface of the tool electrode is completely parallel to the inclined end surface of the workpiece, the tool electrode is conveniently adjusted to be accurately positioned when the inclined end surface is adjusted, electric spark machining is smoothly carried out, secondary adjustment is not needed to be carried out by disassembling the workpiece, the consumption of manpower and material resources is reduced, and the tool electrode is more convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural diagram of a lifting slider according to the present invention;
FIG. 3 is a schematic view of the structure of the rotary connecting block of the present invention;
FIG. 4 is a schematic view of the structure of the rotating scroll of the present invention;
FIG. 5 is a schematic view of the electrode holder head of the present invention;
FIG. 6 is a schematic cross-sectional view of an electrode holder head according to the present invention;
FIG. 7 is a schematic view of the overall structure of the apparatus of the present invention for machining the surface of a workpiece;
FIG. 8 is a schematic view of the overall structure of the beveled end face of the workpiece being machined according to the present invention;
fig. 9 is an enlarged view of a portion of fig. 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1 to 4, an electric spark machining guide device based on a cooling liquid includes an electrode clamp head 1, an adjusting link 2 is fixedly installed at one side of the electrode clamp head 1, a moving sleeve 12 is installed at an outer side of the adjusting link 2, a transmission gear 13 is fixedly installed at an outer surface of the moving sleeve 12, an adjusting gear 14 is installed at one side of the transmission gear 13, a translation knob 15 is fixedly installed in the middle of the adjusting gear 14 in a penetrating manner, a rotary connecting block 3 is installed at an outer side of the translation knob 15, a rotary scroll rod 4 is fixedly installed at a surface of one side of the rotary connecting block 3, a lifting slider 5 is installed at an outer side of the rotary scroll rod 4, a motor 8 is movably installed at one end of the lifting slider 5 in a penetrating manner, an angle adjusting turbine 9 is installed above a rotating shaft of the motor 8, the rotating shaft of the motor 8 is in transmission, a threaded sleeve 11 is movably arranged in the middle of the lifting slider 5, a threaded sleeve turbine 10 is fixedly arranged on the outer surface of the threaded sleeve 11, a lifting knob 7 is arranged on one side of the threaded sleeve turbine 10, one end of the lifting knob 7 penetrates through the lifting slider 5 and extends to the outside of the lifting slider 5, a machine tool clamp connecting rod 6 penetrates through the middle of the threaded sleeve 11, two ends of the machine tool clamp connecting rod 6 penetrate through the lifting slider 5, threads with the same turning directions are arranged on the outer surface of the machine tool clamp connecting rod 6 and the inner side surface of the threaded sleeve 11, the machine tool clamp connecting rod 6 is in threaded connection with the threaded sleeve 11, the threaded sleeve 11 can move along the surface of the machine tool clamp connecting rod 6 when rotating through the threaded connection, the lifting slider 5 is driven to move integrally, the height of the device is adjusted, and a connecting, one end of the connecting plate is provided with a guide rod in a penetrating way, one end of the guide rod is fixed on the surface of the end part of the rotary connecting block 3, the guide rod guides the connecting plate when the adjusting connecting rod 2 moves, the connecting plate and the adjusting connecting rod 2 are limited from rotating at the same time, the adjusting connecting rod 2 can be ensured to move only in a linear way, a ball bearing is arranged between one end of the rotary scroll 4 and the lifting slide block 5, the adjusting connecting rod 2 can be driven to move by screw transmission when the movable sleeve 12 rotates, the positions of the electrode clamp head 1 and a tool electrode placed in the electrode clamp head can be adjusted, the electrode clamp head can be better processed, fastening screws are arranged on both sides of the electrode clamp head 1, a tool electrode positioning groove is arranged on one side of the electrode clamp head 1, the fastening screws penetrate through the outer wall of the electrode clamp head 1 and extend into the, adjust electrode holder head 1 and place the position of tool electrode 16 in, better processing, the inboard surface of movable sleeve 12 all is provided with the screw thread of turning to the same completely with the outside of adjusting connecting rod 2, movable sleeve 12 controls adjusting connecting rod 2 through the screw thread, movable sleeve 12 can drive adjusting connecting rod 2 through screw thread transmission when rotatory and move, adjust electrode holder head 1 and the position of placing the tool electrode in, better processing, the bottom tip of machine tool holder connecting rod 6 is provided with the limiting plate, the limiting plate passes through welded fastening in the bottom of machine tool holder connecting rod 6, the whole stroke of lifting slide 5 can be restricted to the limiting plate, avoid lifting slide 5 threaded sleeve 11 and machine tool holder connecting rod 6 separation to appear when removing, lead to the device part separation, unable normal use.
Example 2
In order to better realize the calibration of the tool electrode and the workpiece 22, i.e. ensure that the end surface of the tool electrode 16 is parallel to the surface of the workpiece 22, referring to fig. 5 to 7, in this embodiment, on the basis of embodiment 1, the front end of the electrode clamp head 1 is provided with an upper contact 17 and a lower contact 17, the central lines of the upper contact and the lower contact are perpendicular to the axis of the adjusting link 2, the inside of the contact 17 is of a cavity structure, the front end of the contact 17 is of a cone structure, the cone end of the contact 17 is provided with a through hole, a fixed contact piece 18 is fixed inside the contact 17, a movable insulating rigid ball 19 is arranged inside the cone of the contact 17, the diameter of the insulating rigid ball 19 is smaller than the diameter of the through hole, a movable contact 20 is arranged inside the contact 17 within a certain distance from the fixed contact piece 18, and the movable contact 20 is connected with the inner, when the insulated rigid balls 19 are extruded from the outside, the movable contact piece 20 is pushed to contact with the fixed contact piece 18 to generate a closing signal, when the upper and lower contacts 17 are completely contacted with the surface of the workpiece 22 and both generate the closing signal, the end surface of the tool electrode and the surface of the workpiece 22 are completely parallel, thereby realizing accurate correction, better realizing electric spark machining, avoiding the tool electrode from being damaged by over-rapid corrosion, improving the machining precision, when the electrode clamp head 1 clamps the tool electrode 16, the end surface of the tool electrode 16 keeps a distance of 0.1 mm-0.01 mm from the front end surface of the electrode clamp head 1, under the interference action of the electrode clamp head 1, the machining gap between the tool electrode 16 and the workpiece 22 can be well kept, the tool electrode is prevented from being directly contacted with the workpiece 22 to damage the electrode, more beneficially, under the action of the two insulated rigid balls, the tool electrode is convenient to keep a fixed machining gap to move during machining, the uniformity of the electric spark machining is improved.
Example 3
In actual operation, the machine tool clamp connecting rod 6 is connected with a machine tool, the machine tool can only perform adjusting movement in the X-axis or Y-axis direction, the side chute of the workpiece 22 is processed, the workpiece 22 is often required to be detached from a workpiece electrode and cooling liquid to position a processing surface, the process is complicated, manpower and material resources are consumed, referring to fig. 8 to 9, the applicant further improves on the basis of embodiments 1 and 2, when the side chute of the workpiece 22 is required to be processed, the lifting knob 7 is adjusted according to the body position of the side chute, so that the threaded sleeve 11 can move along the surface of the machine tool clamp connecting rod 6 when rotating, the lifting slide block 5 is driven to move integrally, the height of the device is adjusted, the electrode clamp head 1 is adjusted to the proper position of the side chute of the workpiece 22, then coarse adjustment is performed according to the inclination angle of the side chute, and the motor is set to two adjusting modes, mode one is manual regulation, and mode two is self-adjusting, specifically is: manually controlling the motor 8, wherein the motor 8 drives the adjusting turbine 9 to rotate, and further drives the adjusting connecting rod 2 to rotate, so that the end face of the electrode clamp head 1 is basically aligned with the inclined end face, then the motor is set to be in a self-adjusting state, the motor 8 can perform self-adjusting rotation according to the contact condition of the upper contact 17 and the lower contact 17 in the self-adjusting state, then the adjusting translation knob 15 drives the adjusting gear 14 to rotate, so that the transmission gear 13 and the moving sleeve 12 rotate synchronously, at the moment, the moving sleeve 12 can drive the adjusting connecting rod 2 to perform transverse feeding through the thread transmission between the moving sleeve 12 and the adjusting connecting rod 2, because the central lines of the upper contact and the lower contact are vertical to the axis of the adjusting connecting rod 2, during the feeding process of the adjusting connecting rod 2, any one of the two contacts 17 necessarily contacts with the inclined end face of the workpiece 22, and when the upper, the movable contact piece 20 is pushed to contact with the fixed contact piece 18 to generate a closing signal, the motor 8 rotates anticlockwise at the moment, when the lower contact 17 contacts with the surface of the workpiece 22 and generates a closing signal, the motor 8 stops rotating to complete the complete contact of the two contact pieces 17 with the surface of the workpiece 22, so that the end surface of the tool electrode 16 is completely parallel to the inclined end surface of the workpiece 22, when the lower contact 17 contacts with the inclined end surface of the workpiece 22 first and presses the insulating rigid ball 19 to move into the contact 17 to push the movable contact piece 20 to contact with the fixed contact piece 18 to generate a closing signal, the motor 8 rotates clockwise at the moment, when the upper contact 17 contacts with the surface of the workpiece 22 and generates a closing signal, the motor 8 stops rotating to complete the complete contact of the two contact pieces 17 with the surface of the workpiece 22, so that the end surface of the tool electrode 16 is completely parallel to the inclined end surface of the workpiece 22, the workpiece 22 does not need to be disassembled for secondary adjustment, so that the consumption of manpower and material resources is reduced, and the use is more convenient.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A method of operating an electric discharge machining guide device comprising an electrode-holder head (1), characterized in that: an adjusting connecting rod (2) is fixedly installed on one side of the electrode clamp head (1), a moving sleeve (12) is arranged on the outer side of the adjusting connecting rod (2), a transmission gear (13) is fixedly installed on the outer surface of the moving sleeve (12), an adjusting gear (14) is arranged on one side of the transmission gear (13), a translation knob (15) is fixedly installed in the middle of the adjusting gear (14) in a penetrating mode, a rotary connecting block (3) is arranged on the outer side of the translation knob (15), a rotary scroll rod (4) is fixedly installed on the surface of one side of the rotary connecting block (3), a lifting slide block (5) is arranged on the outer side of the rotary scroll rod (4), a motor (8) is movably arranged at one end of the lifting slide block (5) in a penetrating mode, and an angle adjusting turbine (9) is arranged above the end portion of, the angle adjusting turbine (9) is fixed at the outer side of the end part of the rotating worm rod (4), a threaded sleeve (11) is movably arranged in the middle of the lifting sliding block (5), a threaded sleeve turbine (10) is fixedly mounted on the outer surface of the threaded sleeve (11), a lifting knob (7) is arranged on one side of the threaded sleeve turbine (10), one end of the lifting knob (7) penetrates through the lifting sliding block (5) and extends to the outer part of the lifting sliding block (5), a machine tool fixture connecting rod (6) is arranged in the middle of the threaded sleeve (11) in a penetrating mode, the two ends of the machine tool fixture connecting rod (6) penetrate through the lifting sliding block (5), an upper contact and a lower contact (17) are arranged at the front end of the electrode fixture head (1), the central line of the upper contact and the lower contact (17) is perpendicular to the axis of the adjusting connecting rod (2), and the contact, the front end of the contact (17) is of a cone structure, the tail end of the cone of the contact (17) is provided with a through hole, a fixed contact piece (18) is fixed inside the contact (17), a movable insulating rigid ball (19) is arranged inside the cone of the contact (17), a movable contact (20) is arranged inside the contact (17) in a certain distance from the fixed contact piece (18), the movable contact (20) is connected with the inner wall of the cone through a plurality of springs (21), the springs (21) pull the movable contact (20) to press the insulating rigid ball (19) to partially expose out of the through hole, and when the insulating rigid ball (19) is extruded from the outside, the movable contact (20) is contacted with the fixed contact piece (18) to generate a closing signal; the operation method comprises the following steps:
the motor (8) is manually controlled, the motor (8) drives the angle adjusting turbine (9) to rotate, and then drives the adjusting connecting rod (2) to rotate, so that the end face of the electrode clamp head (1) is basically aligned with the inclined end face, then the motor is set to be in a self-adjusting state, under the self-adjusting state, the motor (8) can perform self-adjusting rotation according to the contact condition of an upper contact (17) and a lower contact (17), then the adjusting translation knob (15) drives the adjusting gear (14) to rotate, so that the transmission gear (13) and the moving sleeve (12) synchronously rotate, at the moment, the moving sleeve (12) can drive the adjusting connecting rod (2) to perform transverse feeding through threaded transmission between the adjusting connecting rod (2), because the central lines of the upper contact and the lower contact are vertical to the axis of the adjusting connecting rod (2), during the feeding process of the adjusting connecting rod (2), one of the two contacts (17, when the upper contact (17) contacts with the inclined end face of a workpiece (22) and presses an insulating rigid ball (19) to move into the contact (17) to push the movable contact (20) to contact with a fixed contact piece (18) to generate a closing signal, the motor (8) rotates anticlockwise, when the lower contact (17) contacts with the surface of the workpiece (22) and generates the closing signal, the motor (8) stops rotating to complete the complete contact of the two contacts (17) with the surface of the workpiece (22), so that the end face of a tool electrode (16) is completely parallel to the inclined end face of the workpiece (22), when the lower contact (17) contacts with the inclined end face of the workpiece (22) and presses the insulating rigid ball (19) to move into the contact (17) to push the movable contact (20) to contact with the fixed contact piece (18) to generate the closing signal, the motor (8) rotates clockwise, and when the upper contact (17) contacts with the surface of the workpiece (22) and generates the closing signal, the motor (8) stops rotating to complete the complete contact between the two contacts (17) and the surface of the workpiece (22), so that the end surface of the tool electrode (16) is completely parallel to the inclined end surface of the workpiece (22), and the electric spark machining of the inclined end surface of the workpiece (22) is facilitated.
2. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the outer surface of the machine tool clamp connecting rod (6) and the inner side surface of the threaded sleeve (11) are provided with threads with the same turning directions, and the machine tool clamp connecting rod (6) is in threaded connection with the threaded sleeve (11).
3. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the other end tip of adjusting connecting rod (2) is provided with the connecting plate, the one end of connecting plate is run through and is provided with the guide bar, the tip surface at swivelling joint piece (3) is fixed to the one end of guide bar.
4. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: one end of the rotary worm (4) is fixed with the rotary connecting block (3) through welding, and a ball bearing is arranged between one end of the rotary worm (4) and the lifting slide block (5).
5. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the electrode clamp is characterized in that fastening screws are arranged on two sides of the electrode clamp head (1), a tool electrode positioning groove is formed in one side of the electrode clamp head (1), and the fastening screws penetrate through the outer wall of the electrode clamp head (1) and extend into the tool electrode positioning groove.
6. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the inner side surface of the movable sleeve (12) and the outer side of the adjusting connecting rod (2) are provided with threads with the same turning directions, and the movable sleeve (12) controls the adjusting connecting rod (2) through the threads.
7. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the limiting plate is arranged at the end part of the bottom end of the machine tool clamp connecting rod (6) and fixed at the bottom end of the machine tool clamp connecting rod (6) through welding.
8. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: when the electrode clamp head (1) clamps the tool electrode (16), the distance between the end surface of the tool electrode (16) and the front end surface of the electrode clamp head (1) is 0.1-0.01 mm.
9. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the motor (8) is set to be in two adjustment modes, wherein the first mode is manual adjustment, the second mode is self-adjustment, when the electrode (8) is in the second mode, the motor can perform self-adjustment rotation according to the contact condition of the upper contact (17) and the lower contact (17), when the upper contact (17) is firstly contacted with the end surface of a workpiece (22) and presses the insulating rigid ball (19) to move into the contact (17), the upper movable contact piece (20) is contacted with the fixed contact piece (18) to generate a closing signal, and at the moment, the motor (8) rotates anticlockwise;
when the lower contact (17) contacts with the inclined end face of the workpiece (22) and presses the insulating rigid ball (19) to move into the contact (17), the lower movable contact (20) contacts with the fixed contact (18) to generate a closing signal, and the motor (8) rotates clockwise.
10. The method of operating an electric discharge machining guide device according to claim 1, characterized in that: the diameter of the insulating rigid ball (19) is smaller than that of a through hole formed in the cone tail end of the contact (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001642.3A CN112846427A (en) | 2021-01-04 | 2021-01-04 | Operation method of electric spark machining guide device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001642.3A CN112846427A (en) | 2021-01-04 | 2021-01-04 | Operation method of electric spark machining guide device |
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| CN112846427A true CN112846427A (en) | 2021-05-28 |
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| CN202110001642.3A Withdrawn CN112846427A (en) | 2021-01-04 | 2021-01-04 | Operation method of electric spark machining guide device |
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| CN (1) | CN112846427A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115780927A (en) * | 2023-02-07 | 2023-03-14 | 成都宝利根创科电子有限公司 | Electrode positioning sheet correction conversion head and method |
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| CN101870020A (en) * | 2010-07-07 | 2010-10-27 | 铜陵精远线模有限责任公司 | Electric spark punching machine capable of punching conical holes |
| CN111889828A (en) * | 2020-08-25 | 2020-11-06 | 合肥工业大学 | Multi-station and multi-angle electric spark machining device and machining method thereof |
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| GB908195A (en) * | 1960-08-12 | 1962-10-17 | Michael Cole | Improvements in and relating to methods and apparatus for machining metal by spark erosion |
| JP2000296420A (en) * | 1999-04-15 | 2000-10-24 | Toshiba Corp | Electric discharge machining device |
| CN2789911Y (en) * | 2005-01-25 | 2006-06-21 | 东莞先得利电子测试配件有限公司 | Needle shape micro-contact device |
| CN101020268A (en) * | 2007-03-09 | 2007-08-22 | 浙江大学 | Fiture with capacity of regulating parallelism of sparker plane and workpiece plane automatically |
| CN101579760A (en) * | 2009-06-03 | 2009-11-18 | 厦门升正机械有限公司 | Electric spark processing equipment |
| CN101774051A (en) * | 2010-02-22 | 2010-07-14 | 西北工业大学 | Inclined hole electrosparking processing device and method for adjusting position and angle of electrode |
| CN101870020A (en) * | 2010-07-07 | 2010-10-27 | 铜陵精远线模有限责任公司 | Electric spark punching machine capable of punching conical holes |
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| CN115780927A (en) * | 2023-02-07 | 2023-03-14 | 成都宝利根创科电子有限公司 | Electrode positioning sheet correction conversion head and method |
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