CN117600588A - Electrolytic machining method for mortise - Google Patents

Abstract

The invention relates to the technical field of precision electrolytic machining, and provides an electrolytic machining method for a mortice.

Description

Electrolytic machining method for mortise

Technical Field

The invention relates to the technical field of precision electrolytic machining, in particular to an electrolytic machining method of a mortise.

Background

At present, in the machining of a tongue-and-groove structure of a wheel disc workpiece, conventional machining methods are a machining method and a wire-cut electric discharge machining method. Such as milling, broaching, grinding, etc. The machining method has the problems of complex cutter shape, small cutter rigidity, easy loss, burrs, sharp edges and the like of the workpiece, so that the tongue-and-groove machining cost is high, the working procedure is complex, the machining efficiency is low by adopting the wire-cut electric discharge machining method, a recast layer, a heat affected zone and the like are easy to generate on the surface of the workpiece, and the durability of the wheel disc workpiece is influenced.

In summary, the existing processing technology of the tongue-and-groove structure has the technical problems of high processing cost, complex processing procedures and the like.

Disclosure of Invention

The invention aims to at least solve the defects in the prior art to a certain extent, and provides an electrolytic machining method for a mortise so as to reduce the machining cost and difficulty of a workpiece.

The electrolytic machining method of the mortise provided by the invention comprises the following steps:

s101, preparing a mortise broaching electrode, wherein the mortise broaching electrode comprises a broaching electrode body and a stepped electrode part; the interior of the broaching electrode body is used for conducting current; the stepped electrode part is arranged on the outer wall of the broaching electrode body and is electrically communicated with the interior of the broaching electrode body; the step-type electrode part comprises a plurality of electrode steps, the electrode steps are distributed along a straight line which is inclined and ascended, and a step shape with gradually ascending step height and gradually widening step width is formed;

s102, assembling the mortise broaching electrode into a liquid cover of a machine table, wherein a mortise electrolytic machining opening is formed in the liquid cover, electrolyte is circulated in the liquid cover, and the electrolyte submerges the mortise electrolytic machining opening; assembling the angle positioning piece onto a main shaft of the electrolytic machine tool, assembling the workpiece rotary positioning piece onto the angle positioning piece, and assembling the workpiece onto the workpiece rotary positioning piece;

s103, driving a workpiece to be positioned above the electrolytic machining opening of the mortise by driving a main shaft of the electrolytic machine tool, and rotationally aligning the machining position of the workpiece to the electrolytic machining opening of the mortise by driving a workpiece rotary positioning piece;

s104, driving the mortise broaching electrode to move in the liquid cover through an electrode dragging mechanism arranged in a machine table, so that the stepped electrode part carries out mortise electrolytic machining on a workpiece, and when the workpiece is machined, the electrode step carries out step feeding with height first and height second and width first on the machining position of the workpiece according to the step height and the step width so as to broach the workpiece at the machining position to form a mortise;

and S105, after the current mortises on the workpiece are machined, controlling the spindle of the electrolytic machine tool to drive and reset, controlling the electrode dragging mechanism to drive and reset, and repeating the step S103 to carry out the mortises electrolytic machining at the next machining position of the current workpiece.

Further, the electrolytic machining method of the mortise comprises the following steps:

setting the broaching electrode body as a strip-shaped body, and setting the strip-shaped body to comprise an electrode area setting region and a body end;

the body end head is provided with a first end head and a second end head, the electrode area setting area is positioned between the first end head and the second end head and is used for setting the stepped electrode part.

Further, the electrolytic machining method of the mortise comprises the following steps:

disposing the first end head to include a first flange and a first groove;

disposing the second head to include a second flange and a second groove; the first flange is positioned on one side of the first groove, and the second flange is positioned on one side of the second groove; the electrode region arrangement region is located between the first groove and the second groove.

Further, the electrolytic machining method of the mortise comprises the following steps:

arranging a plurality of electrode steps comprising an inclined platform connection step area and a step direct connection area;

the inclined table connecting step area is communicated with the step direct-connection area, and the step height of the inclined table connecting step area is lower than that of the step direct-connection area.

Further, the electrolytic machining method of the mortise comprises the following steps:

each electrode step of the inclined table connecting step area and the step direct connection area comprises a step bottom and a step top;

the top of the step is positioned at the upper end of the bottom of the step, and the heights of the bottoms of all the steps are equal; all the step tops are correspondingly distributed at the upper ends of all the step bottoms along the inclined ascending straight line, so that a step shape with gradually increased step heights is formed.

Further, the electrolytic machining method of the mortise comprises the following steps:

the top of the step of the inclined platform joint step area comprises an inclined platform broaching part and a platform broaching part, and the inclined platform broaching part is connected with the platform broaching part.

Further, the electrolytic machining method of the mortise comprises the following steps:

the step top of the step direct connection area comprises a plurality of step tops which are directly connected.

Further, the electrolytic machining method of the mortise comprises the following steps:

setting the inclined bench broaching part as a conductor or an insulator, and setting the platform broaching part as a conductor; when the inclined bench broaching part is a conductor, the inclined bench broaching part in a conductor state is electrically communicated with the interior of the broaching electrode body; the land broach is in electrical communication with an interior of the broaching electrode body.

Further, through the drive of the main shaft of electrolysis lathe, drive the work piece and be located tongue-and-groove electrolytic machining mouth top includes:

and driving the workpiece to be positioned above the mortise electrolytic machining opening by driving the main shaft of the electrolytic machine tool in the vertical direction and the horizontal direction of the machine table.

Further, by driving the workpiece rotating positioning member, the processing position of the workpiece is rotationally aligned with the slot electrolytic processing port, comprising:

and the machining position of the workpiece is rotationally aligned with the tongue-and-groove electrolytic machining opening through the driving of the workpiece rotary positioning piece to rotate clockwise or anticlockwise.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides an electrolytic machining method of a mortice, which comprises the steps of preparing a mortice broaching electrode, enabling the mortice broaching electrode to comprise a broaching electrode body and a stepped electrode part, enabling the stepped electrode part to comprise a plurality of electrode steps, enabling the electrode steps to be distributed along an inclined ascending straight line, forming a stepped shape with gradually rising step heights and gradually widening step widths, assembling the mortice broaching electrode into a liquid cover of a machine table, circulating electrolyte in the cover, immersing a mortice electrolytic machining opening by the electrolyte, assembling an angle positioning piece onto a spindle of an electrolytic machine tool, assembling a workpiece rotary positioning piece onto the angle positioning piece, driving the workpiece to be located above the mortice electrolytic machining opening by driving the workpiece rotary positioning piece, enabling the machining position of the workpiece to be rotationally aligned with the mortice electrolytic machining opening, driving the mortice broaching electrode to move in the liquid cover, enabling the machining position of the workpiece to be low, enabling the step to be high after the step to be narrow after the step width is carried out according to the step heights and the step widths, enabling the workpiece to be machined by the step heights, enabling the workpiece to be reset, and enabling the current mortice machining to be finished by the step to be controlled, and the current machining cost to be reduced after the mortice is machined.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic flow chart of an electrolytic machining method of a tongue and groove according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a tongue and groove broaching electrode in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of another construction of a tongue and groove broach electrode in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of another construction of a tongue and groove broach electrode in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of another construction of a tongue and groove broach electrode in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of another construction of a tongue and groove broach electrode in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of another construction of a tongue and groove broach electrode in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view showing a structure of an electrolytic device according to an embodiment of the present invention;

FIG. 9 is a schematic view showing a partial structure of an electrolytic device according to an embodiment of the present invention;

FIG. 10 is a schematic view showing another partial structure of an electrolytic device according to an embodiment of the present invention;

FIG. 11 is a schematic view of an electrolytic machine tool according to an embodiment of the present invention.

In the drawings, each reference numeral denotes:

1. a tongue and groove broaching electrode; 10. broaching the electrode body; 100. an electrode region arrangement region; 101. a body end; 1010. a first end; 10100. a first flange; 10101. a first groove; 1011. a second end; 10110. a second flange; 10111 second grooves; 11. a stepped electrode portion; 110. an electrode step; 1100. the inclined table is connected with the step area; 1101. a step direct connection area; 1102. the bottom of the step; 1103. a step top; 1104. a ramp broaching portion; 1105. a platform broaching portion; 1106. a segmented rectangular body 1106; 1107. an integral rectangular body 1107;

2. a workpiece; 20. a tongue and groove;

3. a machine table;

4. a liquid cover; 40. a tongue-and-groove electrolytic machining port;

5. a main shaft of an electrolytic machine tool;

6. an angle positioning member;

7. the workpiece rotates the positioning member.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar methods or methods having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present invention.

Example 1

Referring to fig. 1-11, the present embodiment provides an electrolytic machining method of a tongue-and-groove, comprising the steps of:

s101, preparing a mortise broaching electrode, wherein the mortise broaching electrode comprises a broaching electrode body and a stepped electrode part; the interior of the broaching electrode body is used for conducting current; the stepped electrode part is arranged on the outer wall of the broaching electrode body and is electrically communicated with the interior of the broaching electrode body; the step-type electrode part comprises a plurality of electrode steps, the electrode steps are distributed along a straight line which is inclined and ascended, and a step shape with gradually ascending step height and gradually widening step width is formed;

s102, assembling the mortise broaching electrode into a liquid cover of a machine table, wherein a mortise electrolytic machining opening is formed in the liquid cover, electrolyte is circulated in the liquid cover, and the electrolyte submerges the mortise electrolytic machining opening; assembling the angle positioning piece onto a main shaft of the electrolytic machine tool, assembling the workpiece rotary positioning piece onto the angle positioning piece, and assembling the workpiece onto the workpiece rotary positioning piece;

s103, driving a workpiece to be positioned above the electrolytic machining opening of the mortise by driving a main shaft of the electrolytic machine tool, and rotationally aligning the machining position of the workpiece to the electrolytic machining opening of the mortise by driving a workpiece rotary positioning piece;

s104, driving the mortise broaching electrode to move in the liquid cover through an electrode dragging mechanism arranged in a machine table, so that the stepped electrode part carries out mortise electrolytic machining on a workpiece, and when the workpiece is machined, the electrode step carries out step feeding with height first and height second and width first on the machining position of the workpiece according to the step height and the step width so as to broach the workpiece at the machining position to form a mortise;

and S105, after the current mortises on the workpiece are machined, controlling the spindle of the electrolytic machine tool to drive and reset, controlling the electrode dragging mechanism to drive and reset, and repeating the step S103 to carry out the mortises electrolytic machining at the next machining position of the current workpiece.

In this embodiment, the mortice broaching electrode is prepared, so that the mortice broaching electrode includes a broaching electrode body and a stepped electrode portion, the stepped electrode portion includes a plurality of electrode steps, the plurality of electrode steps are distributed along a straight line with an inclined elevation, the height of the step is gradually increased, the step width is gradually widened, the mortice broaching electrode is assembled into a liquid cover of a machine table, electrolyte circulates in the cover, the electrolyte submerges a mortice electrochemical machining opening, an angle positioning piece is assembled onto a spindle of an electrochemical machine tool, a workpiece rotating positioning piece is assembled onto the angle positioning piece, the workpiece is driven to be located above the mortice electrochemical machining opening by driving the workpiece rotating positioning piece, the machining position of the workpiece is rotationally aligned with the slot electrochemical machining opening, the mortice broaching electrode is driven to move in the liquid cover to perform mortice electrochemical machining, the step height and the step width are performed on the machining position of the workpiece according to the step height, the step width is performed to form a step with a low height and a step width, the mortice is performed on the workpiece, the current machining position is performed, and the mortice machining position is performed after the step width is reduced, the current position is reset, and the current machining position is performed, and the mortice machining is performed, and the current machining position is performed, and the complicated.

It should be noted that, in this embodiment, after the current mortises on the workpiece are machined, the spindle of the electrolytic machine tool is controlled to drive and reset, and the electrode dragging mechanism is controlled to drive and reset, and step S103 is repeated to perform the mortises electrolytic machining at the next machining position of the current workpiece, so that a plurality of mortises distributed at intervals can be machined on the workpiece, and the cost and complexity of the mortises machining are reduced.

It should be noted that the workpiece may be a disc-shaped workpiece, and the machining position of the disc-shaped workpiece may be rotationally aligned with the slot electrolytic machining opening by driving the workpiece rotational positioning member, so that a plurality of slots distributed at intervals are machined on the disc-shaped workpiece, thereby reducing the cost and complexity of slot machining.

In some preferred embodiments, the driving of the spindle of the electrolytic machine tool to drive the workpiece to be located above the tongue-and-groove electrolytic machining port may include: and driving the workpiece to be positioned above the mortise electrolytic machining opening by driving the main shaft of the electrolytic machine tool in the vertical direction and the horizontal direction of the machine table.

In some preferred embodiments, rotationally aligning the machining position of the workpiece with the slot electrolytic machining port by actuation of the workpiece rotational positioning member includes: and the machining position of the workpiece is rotationally aligned with the tongue-and-groove electrolytic machining opening through the driving of the workpiece rotary positioning piece to rotate clockwise or anticlockwise.

Example two

Referring to fig. 1 to 11, the present embodiment provides a tongue-and-groove broaching electrode 1, comprising:

a broaching electrode body 10, an interior of the broaching electrode body 10 for conducting an electric current;

a stepped electrode portion 11, the stepped electrode portion 11 being provided on an outer wall of the broaching electrode body 10 and being in electrical communication with an inside of the broaching electrode body 10; the step-type electrode part 11 includes a plurality of electrode steps 110, and the plurality of electrode steps 110 are distributed along a straight line of inclined rising, forming a step shape in which the step height gradually rises; when the stepped electrode 11 performs the electrolytic machining of the mortise 20 on the workpiece 2, the electrode step 110 performs step feeding of the machining position of the workpiece 2, which is lower before higher and narrower before wider, according to the step height, so as to broach the mortise 20 at the machining position.

It should be noted that, the mortise 20 is an a-shaped slot with a complex structure, the inner wall of the mortise 20 has a plurality of pairs of inner wall grooves with opposite openings, and the opening of the mortise 20 varies from wide to narrow. In the prior art, in order to form the mortise slot 20, a machining method and a wire electric discharge machining method are mainly used. The machining method has the problems of complex cutter shape, small cutter rigidity, easy loss, burrs, sharp edges and the like of the workpiece 2, so that the tongue-and-groove 20 has high machining cost and complex working procedure, while the wire-cut electric discharge machining method has lower machining efficiency, and a recast layer, a heat affected zone and the like are easily generated on the surface of the workpiece 2.

In this embodiment, by providing the broaching electrode body 10, the interior of the broaching electrode body 10 is used for conducting current, and the outer wall of the broaching electrode body 10 is provided with the stepped electrode portion 11, so that the stepped electrode portion 11 is electrically communicated with the interior of the broaching electrode body 10, and meanwhile, the stepped electrode portion 11 includes a plurality of electrode steps 110, and the plurality of electrode steps 110 are distributed along a straight line with an obliquely rising height, so as to form a stepped shape with gradually rising step heights; when the stepped electrode 11 performs the electrolytic machining of the mortise 20 on the workpiece 2, the electrode step 110 performs step feeding with the height of the step being lower before higher and narrower before wider on the machining position of the workpiece 2, so as to broach the mortise 20 on the machining position, thereby realizing efficient machining.

In some preferred embodiments, the broaching electrode body 10 is an elongated shaped body; the strip-shaped body comprises an electrode region arrangement region 100 and a body end 101, and the body end 101 comprises a first end 1010 and a second end 1011; the electrode region setting region 100 is located between the first end 1010 and the second end 1011 for setting the stepped electrode part 11. Further, the first end 1010 includes a first flange 10100 and a first groove 10101; the second head 1011 includes a second flange 10110 and a second groove 10111; the first flange 10100 is located at one side of the first groove 10101, and the second flange 10110 is located at one side of the second groove 10111; the electrode region arrangement region 100 is located between the first recess 10101 and the second recess 10111.

The elongated body has a plurality of electrode steps 110 with gradually increasing heights. The strip-shaped body comprises a body end 101, the body end 101 comprises a first end 1010 and a second end 1011, and the electrode area arrangement area 100 is located between the first end 1010 and the second end 1011, so that the strip-shaped body can be conveniently assembled on the machine 3.

In some preferred embodiments, the plurality of electrode steps 110 includes a ramp engagement step region 1100 and a step direct region 1101; the ramp engagement step area 1100 is communicated with the step direct connection area 1101, and the step height of the ramp engagement step area 1100 is lower than that of the step direct connection area 1101. Further, each electrode step 110 of the ramp engagement step region 1100 and the step direct connection region 1101 includes a step bottom 1102 and a step top 1103; the step top 1103 is positioned at the upper end of the step bottom 1102, and all the step bottoms 1102 are equal in height; all the step tops 1103 are correspondingly distributed at the upper ends of all the step bottoms 1102 along the inclined ascending straight line, so as to form a step shape with gradually rising step heights. Further, the step top 1103 of the ramp engagement step area 1100 includes a ramp broaching portion 1104 and a land broaching portion 1105, the ramp broaching portion 1104 connecting with the land broaching portion 1105. Further, the step top 1103 of the step direct connection region 1101 includes a plurality of step tops 1103 that are directly connected. Further, the ramp broaching portion 1104 is a conductor or an insulator, and the land broaching portion 1105 is a conductor; when the truncated broaching portion 1104 is a conductor, the truncated broaching portion 1104 in a conductor state is electrically connected to the inside of the broaching electrode body 10; the land broach 1105 is in electrical communication with the interior of the broaching electrode body 10.

It should be noted that, the plurality of electrode steps 110 include an inclined platform connecting step area 1100 and a step direct connection area 1101, the inclined platform connecting step area 1100 is communicated with the step direct connection area 1101, the step height of the inclined platform connecting step area 1100 is lower than that of the step direct connection area 1101, and during processing, the electrode steps 110 of the inclined platform connecting step area 1100 sequentially process the processing position of the workpiece 2 according to the rule of increasing step height. After all the electrode steps 110 of the inclined table connecting step area 1100 process the processing position of the workpiece 2, the electrode steps 110 of the step direct connecting area 1101 process the processing position of the workpiece 2 according to the rule of increasing the step height, so that a high-precision mortise 20 is formed at the processing position of the workpiece 2.

It should be noted that, each electrode step 110 of the ramp connecting step area 1100 and the step direct connecting area 1101 includes a step bottom 1102 and a step top 1103, the step top 1103 is located at an upper end of the step bottom 1102, all the step bottoms 1102 are equal in height, all the step tops 1103 are correspondingly distributed at an upper end of all the step bottoms 1102 along a straight line that is inclined and raised, a step shape with a step height gradually raised is formed, and after the processing positions of the workpieces 2 are sequentially processed by the electrode steps 110 of the step shape according to a rule that the step heights are gradually raised, high-precision mortises 20 are formed at the processing positions of the workpieces 2.

It should be noted that, the step top 1103 of the ramp engagement step area 1100 includes a ramp broaching portion 1104 and a platform broaching portion 1105, the ramp broaching portion 1104 is connected to the platform broaching portion 1105, and the step top 1103 of the step direct connection area 1101 includes a plurality of directly connected step tops 1103, so that after the machining position of the workpiece 2 is machined, a high-precision tongue-and-groove 20 is formed at the machining position of the workpiece 2.

The table broaching portion 1104 is a conductor or an insulator, the table broaching portion 1105 is a conductor, and when the table broaching portion 1104 is a conductor, the table broaching portion 1104 in a conductive state is electrically connected to the inside of the broaching electrode body 10, and the table broaching portion 1105 is electrically connected to the inside of the broaching electrode body 10, so that when the machining position of the workpiece 2 is machined, different machining requirements are satisfied.

In a further preferred embodiment, the step bottom 1102 of the ramp engagement step area 1100 is a segmented rectangular body 11061109, and the step top 1103 of the ramp engagement step area 1100 is correspondingly located in the middle of the segmented rectangular body 11061109, so as to divide the segmented rectangular body 11061109 into equal width sides; the step bottom 1102 of the step direct connection region 1101 is an integral rectangular body 11071110, and the step top 1103 of the step direct connection region 1101 is positioned in the middle of the integral rectangular body 11071110 and separates the integral rectangular body 11071110 to form equal-width side surfaces.

It should be noted that, the step bottom 1102 of the ramp engagement step area 1100 is a segmented rectangular body 11061109, and the ramp broaching portion 1104 and the platform broaching portion 1105 of the step top 1103 of the ramp engagement step area 1100 may be arranged on each corresponding segment of rectangular body in a segmented manner. The step bottom 1102 of the step direct connection region 1101 is an integral rectangular body 11071110, and the step top 1103 of the step direct connection region 1101 may be integrally disposed on the integral rectangular body 11071110.

Example III

Referring to fig. 1 to 11, the present embodiment provides an electrolysis apparatus comprising:

a machine 3; the machine table 3 is provided with a liquid cover 4, the liquid cover 4 is provided with a tongue-and-groove electrolytic machining opening 40, electrolyte is circulated in the liquid cover 4, and the electrolyte submerges the tongue-and-groove electrolytic machining opening 40;

the tongue-and-groove broaching electrode 1 according to any of the above embodiments; the mortise broaching electrode 1 is assembled in the liquid cover 4, the mortise broaching electrode 1 is driven by a driving mechanism to linearly move in the liquid cover 4, and step feeding with height-first-height-last-narrow-last-wide is carried out on a processing position of the workpiece 2 so as to broach at the processing position to form a mortise 20;

a main shaft 5 of the electrolytic machine tool; the main shaft 5 of the electrolytic machine tool is assembled on one side of the machine table 3 and is positioned above the liquid cover 4;

an angle positioning member 6; one end of the angle positioning piece 6 is connected with the main shaft 5 of the electrolytic machine tool, the other end of the angle positioning piece 6 is connected with the workpiece rotating positioning piece 7, and the workpiece rotating positioning piece 7 is connected with the workpiece 2; the angle positioning piece 6 drives the workpiece 2 to be positioned above the mortise electrolytic machining opening 40 under the drive of the spindle 5 of the electrolytic machine tool, and the workpiece rotating positioning piece 7 rotates the machining position of the workpiece 2 to be aligned with the mortise electrolytic machining opening 40.

It should be noted that, one end of the angle positioning piece 6 is connected with the spindle 5 of the electrolytic machine tool, the other end of the angle positioning piece 6 is connected with the workpiece rotating positioning piece 7, the workpiece rotating positioning piece 7 is connected with the workpiece 2, and the angle positioning piece 6 drives the workpiece 2 to be located above the tongue-and-groove electrolytic machining opening 40 under the driving of the spindle 5 of the electrolytic machine tool, so that the positioning of the workpiece 2 can be realized. In addition, the workpiece rotating and positioning member 7 rotates and aligns the processing position of the workpiece 2 with the slot electrolytic processing opening 40, the slot broaching electrode 1 is driven by a driving mechanism to linearly move in the liquid cover 4, and the step feeding of the processing position of the workpiece 2 is performed with the steps of height from top to bottom, width from top to bottom, and width from top to bottom, so that the slot 20 is broached at the processing position.

The electrolytic device includes the tongue-and-groove broaching electrode 1 according to any of the above embodiments, and the tongue-and-groove broaching electrode 1 includes: broaching the electrode body 10 and the stepped electrode portion 11; the interior of the broaching electrode body 10 is used for conducting current; the stepped electrode part 11 is provided on the outer wall of the broaching electrode body 10 and is in electrical communication with the interior of the broaching electrode body 10; the step-type electrode part 11 includes a plurality of electrode steps 110, and the plurality of electrode steps 110 are distributed along a straight line of inclined rising, forming a step shape in which the step height gradually rises; when the stepped electrode 11 performs the electrolytic machining of the mortise 20 on the workpiece 2, the electrode step 110 performs step feeding of the machining position of the workpiece 2, which is lower before higher and narrower before wider, according to the step height, so as to broach the mortise 20 at the machining position. In addition, the electrolytic device comprises the mortise broaching electrode 1, and the electrolytic machine tool comprises the mortise broaching electrode 1. Since the step electrode portion 11 performs step feeding with the step height being lower before higher, narrower before wider on the processing position of the workpiece 2 according to the step height when the groove 20 is electrolytically processed on the workpiece 2, the step can be electrolytically finished in stages from shallow to deep on the processing position of the workpiece 2, so as to form the groove 20 by broaching on the processing position, and reduce the processing cost and complexity of the groove 20.

Example IV

Referring to fig. 1 to 11, the present embodiment provides an electrolytic machine tool including: the electrolysis apparatus in the above embodiment.

The electrolytic machine tool includes an electrolytic device including the tongue-and-groove broaching electrode 1. The tongue-and-groove broaching electrode 1 includes: broaching the electrode body 10 and the stepped electrode portion 11; the interior of the broaching electrode body 10 is used for conducting current; the stepped electrode part 11 is provided on the outer wall of the broaching electrode body 10 and is in electrical communication with the interior of the broaching electrode body 10; the step-type electrode part 11 includes a plurality of electrode steps 110, and the plurality of electrode steps 110 are distributed along a straight line of inclined rising, forming a step shape in which the step height gradually rises; when the stepped electrode 11 performs the electrolytic machining of the mortise 20 on the workpiece 2, the electrode step 110 performs step feeding of the machining position of the workpiece 2, which is lower before higher and narrower before wider, according to the step height, so as to broach the mortise 20 at the machining position. Since the step electrode portion 11 performs step feeding with the step height being lower before higher, narrower before wider on the processing position of the workpiece 2 according to the step height when the groove 20 is electrolytically processed on the workpiece 2, the step can be electrolytically finished in stages from shallow to deep on the processing position of the workpiece 2, so as to form the groove 20 by broaching on the processing position, and reduce the processing cost and complexity of the groove 20.

The foregoing is a description of the embodiments of the present invention, and is not to be construed as limiting the invention, since modifications in the detailed description and the application scope will become apparent to those skilled in the art upon consideration of the teaching of the embodiments of the present invention.

Claims (10)

1. An electrolytic machining method of a mortise is characterized by comprising the following steps:

s101, preparing a mortise broaching electrode, wherein the mortise broaching electrode comprises a broaching electrode body and a stepped electrode part; the interior of the broaching electrode body is used for conducting current; the stepped electrode part is arranged on the outer wall of the broaching electrode body and is electrically communicated with the interior of the broaching electrode body; the step-type electrode part comprises a plurality of electrode steps, the electrode steps are distributed along a straight line which is inclined and ascended, and a step shape with gradually ascending step height and gradually widening step width is formed;

s102, assembling the mortise broaching electrode into a liquid cover of a machine table, wherein a mortise electrolytic machining opening is formed in the liquid cover, electrolyte is circulated in the liquid cover, and the electrolyte submerges the mortise electrolytic machining opening; assembling the angle positioning piece onto a main shaft of the electrolytic machine tool, assembling the workpiece rotary positioning piece onto the angle positioning piece, and assembling the workpiece onto the workpiece rotary positioning piece;

s103, driving a workpiece to be positioned above the electrolytic machining opening of the mortise by driving a main shaft of the electrolytic machine tool, and rotationally aligning the machining position of the workpiece to the electrolytic machining opening of the mortise by driving a workpiece rotary positioning piece;

s104, driving the mortise broaching electrode to move in the liquid cover through an electrode dragging mechanism arranged in a machine table, so that the stepped electrode part carries out mortise electrolytic machining on a workpiece, and when the workpiece is machined, the electrode step carries out step feeding with height first and height second and width first on the machining position of the workpiece according to the step height and the step width so as to broach the workpiece at the machining position to form a mortise;

and S105, after the current mortises on the workpiece are machined, controlling the spindle of the electrolytic machine tool to drive and reset, controlling the electrode dragging mechanism to drive and reset, and repeating the step S103 to carry out the mortises electrolytic machining at the next machining position of the current workpiece.

2. The method of electrolytic machining of a mortise in accordance with claim 1 further comprising:

setting the broaching electrode body as a strip-shaped body, and setting the strip-shaped body to comprise an electrode area setting region and a body end;

the body end head is provided with a first end head and a second end head, the electrode area setting area is positioned between the first end head and the second end head and is used for setting the stepped electrode part.

3. The method of electrolytic machining of a mortise as recited in claim 2 further comprising:

disposing the first end head to include a first flange and a first groove;

disposing the second head to include a second flange and a second groove; the first flange is positioned on one side of the first groove, and the second flange is positioned on one side of the second groove; the electrode region arrangement region is located between the first groove and the second groove.

4. The method of electrolytic machining of a mortise in accordance with claim 1 further comprising:

arranging a plurality of electrode steps comprising an inclined platform connection step area and a step direct connection area;

the inclined table connecting step area is communicated with the step direct-connection area, and the step height of the inclined table connecting step area is lower than that of the step direct-connection area.

5. The method of electrolytic machining of a dovetail groove according to claim 4, further comprising:

each electrode step of the inclined table connecting step area and the step direct connection area comprises a step bottom and a step top;

the top of the step is positioned at the upper end of the bottom of the step, and the heights of the bottoms of all the steps are equal; all the step tops are correspondingly distributed at the upper ends of all the step bottoms along the inclined ascending straight line, so that a step shape with gradually increased step heights is formed.

6. The method of electrolytic machining of a dovetail groove according to claim 5, further comprising:

the top of the step of the inclined platform joint step area comprises an inclined platform broaching part and a platform broaching part, and the inclined platform broaching part is connected with the platform broaching part.

7. The method of electrolytic machining of a dovetail groove according to claim 5, further comprising:

the step top of the step direct connection area comprises a plurality of step tops which are directly connected.

8. The method of electrolytic machining of a dovetail groove according to claim 6, further comprising:

setting the inclined bench broaching part as a conductor or an insulator, and setting the platform broaching part as a conductor; when the inclined bench broaching part is a conductor, the inclined bench broaching part in a conductor state is electrically communicated with the interior of the broaching electrode body; the land broach is in electrical communication with an interior of the broaching electrode body.

9. A method of electrolytically machining a dovetail in accordance with any one of claims 1 to 8, wherein driving the workpiece over the dovetail electrolytic machining slot by actuation of the spindle of the electrolytic machine tool comprises:

and driving the workpiece to be positioned above the mortise electrolytic machining opening by driving the main shaft of the electrolytic machine tool in the vertical direction and the horizontal direction of the machine table.

10. A method of electrolytically machining a dovetail in accordance with any one of claims 1 to 8, wherein rotationally aligning a machining position of a workpiece to said dovetail slot by actuation of said workpiece rotational positioning member, comprises:

and the machining position of the workpiece is rotationally aligned with the tongue-and-groove electrolytic machining opening through the driving of the workpiece rotary positioning piece to rotate clockwise or anticlockwise.