Method for electrochemical machining of mortise and tenon joints

Abstract

The present application relates to the technical field of precision electrolytic processing, and provides an electrolytic processing method for tenon grooves. The tenon groove broaching electrode is prepared so that the tenon groove broaching electrode forms a ladder shape with gradually increasing step height and gradually widening step width. The tenon groove broaching electrode is assembled into a liquid cover of a machine table. The workpiece is driven to be located above the tenon groove electrolytic processing opening by the driving of the main shaft of the electrolytic machine tool. The processing position of the workpiece is rotated and aligned with the tenon groove electrolytic processing opening by the driving of the workpiece rotating positioning member. The tenon groove broaching electrode is driven to move in the liquid cover for tenon groove electrolytic processing. The electrode steps perform step feeding from low to high and from narrow to wide according to the step height and the step width of the workpiece processing position, so as to form the tenon groove by broaching at the processing position. After the current tenon groove processing of the workpiece is completed and the reset control is performed, the next processing position of the current workpiece is subjected to tenon groove electrolytic processing, so as to reduce the cost and complexity of tenon groove processing.

Description

An electrolytic machining method for tenons and grooves Technical Field

[0001] This invention relates to the field of precision electrochemical machining technology, and in particular to an electrochemical machining method for tenon grooves. Background Technology

[0002] Currently, the conventional methods for machining the tenon and groove structure of wheel discs are mechanical machining and wire electrical discharge machining (EDM). Examples include milling, broaching, and grinding. Mechanical machining methods suffer from problems such as complex tool shapes, low tool rigidity leading to easy wear, and burrs and sharp edges on the workpiece, resulting in high machining costs and complex processes. Wire electrical discharge machining, on the other hand, has lower machining efficiency and is prone to creating a recast layer and heat-affected zone on the workpiece surface, affecting the durability of the wheel disc.

[0003] In summary, existing mortise and tenon structure processing technologies suffer from high processing costs and complex processing procedures. Summary of the Invention

[0004] The purpose of this invention is to at least partially address the shortcomings of the prior art and provide an electrolytic machining method for tenons and grooves, so as to reduce the processing cost and difficulty of the workpiece.

[0005] The electrolytic machining method for tenons and grooves provided by this invention includes the following steps:

[0006] S101. Prepare a tenon and groove broaching electrode, wherein the tenon and groove broaching electrode includes 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 disposed on the outer wall of the broaching electrode body and is electrically connected to the interior of the broaching electrode body; the stepped electrode part includes multiple electrode steps, the multiple electrode steps are distributed along an inclined upward straight line, forming a stepped shape in which the step height gradually increases and the step width gradually widens.

[0007] S102. The tenon and groove broaching electrode is assembled into the liquid cover of the machine tool. The liquid cover is provided with a tenon and groove electrolytic machining port. Electrolyte flows inside the liquid cover and the electrolyte immerses the tenon and groove electrolytic machining port. An angle positioning component is assembled onto the spindle of the electrolytic machine tool, and a workpiece rotation positioning component is assembled onto the angle positioning component. The workpiece is then assembled onto the workpiece rotation positioning component.

[0008] S103. Driven by the spindle of the electrolytic machine tool, the workpiece is positioned above the mortise and tenon electrolytic machining opening. Driven by the workpiece rotation positioning component, the machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining opening.

[0009] S104. The mortise and tenon broaching electrode is driven to move within the liquid shroud by the electrode dragging mechanism installed in the machine tool, so that the stepped electrode part performs mortise and tenon electrolytic machining on the workpiece. During machining, the electrode steps feed the workpiece stepwise according to the step height and the step width, so as to broach and form a mortise and tenon at the machining position.

[0010] S105. After the current tenon groove on the workpiece is processed, control the spindle drive of the electrolytic machine tool to reset and control the electrode drag mechanism to reset. Repeat step S103 to perform tenon groove electrolytic processing at the next processing position of the current workpiece.

[0011] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0012] The broaching electrode body is configured as an elongated body, and the elongated body includes an electrode area and a body end.

[0013] The body end is configured to include a first end and a second end, such that the electrode area is located between the first end and the second end, for setting the stepped electrode portion.

[0014] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0015] The first end is provided with a first flange and a first groove;

[0016] The second end is provided with a second flange and a second groove; the first flange is located on one side of the first groove, and the second flange is located on one side of the second groove; the electrode area is located between the first groove and the second groove.

[0017] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0018] The plurality of electrode steps are configured to include a ramp-connected step area and a step-direct connection area.

[0019] The inclined platform connecting step area is connected to the step direct connection area, and the step height of the inclined platform connecting step area is lower than the step height of the step direct connection area.

[0020] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0021] Each electrode step that connects the inclined platform to the step area and the step direct connection area includes a step bottom and a step top;

[0022] The top of the step is located above the bottom of the step, and all the bottoms of the steps are at the same height; all the tops of the steps are distributed at the top of all the bottoms of the steps along an inclined upward straight line, forming a stepped shape with gradually increasing step height.

[0023] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0024] The top of the step connecting the inclined platform to the step area includes an inclined platform broaching part and a platform broaching part, and the inclined platform broaching part is connected to the platform broaching part.

[0025] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0026] The top of the steps in the direct connection area of ​​the steps includes multiple directly connected step tops.

[0027] Furthermore, the electrolytic machining method for tenons and mortises also includes:

[0028] The inclined platform broaching section is configured as a conductor or an insulator, and the platform broaching section is configured as a conductor; when the inclined platform broaching section is a conductor, the inclined platform broaching section in the conductor state is electrically connected to the interior of the broaching electrode body; the platform broaching section is electrically connected to the interior of the broaching electrode body.

[0029] Furthermore, the workpiece is driven above the mortise and tenon electrolytic machining opening by the spindle of the electrolytic machine tool, including:

[0030] Driven by the spindle of the electrolytic machine tool in both the vertical and horizontal directions of the machine, the workpiece is positioned above the mortise and tenon electrolytic machining port.

[0031] Furthermore, by driving the workpiece rotation positioning component, the machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining opening, including:

[0032] Driven by the clockwise or counterclockwise rotation of the workpiece rotation positioning component, the machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining port.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] This invention provides a method for electrolytic machining of tenons and mortises. The method involves preparing a tenon and mortise broaching electrode, comprising an electrode body and a stepped electrode portion. The stepped electrode portion includes multiple electrode steps distributed along an inclined, ascending straight line, forming a stepped shape with gradually increasing step height and width. The tenon and mortise broaching electrode is assembled into a liquid shroud of a machine tool, where an electrolyte flows, immersing the tenon and mortise electrolytic machining port. An angle positioning component is assembled onto the spindle of the electrolytic machine tool, and a workpiece rotation positioning component is assembled onto the angle positioning component. The workpiece is then assembled onto the workpiece rotation positioning component. Driven by the spindle of the electrolytic machine tool, the workpiece is positioned above the mortise and tenon electrolytic machining port. Driven by the workpiece rotation positioning component, the workpiece's machining position is rotated to align with the mortise and tenon electrolytic machining port. The mortise and tenon broaching electrode is driven to move within the liquid shroud to perform mortise and tenon electrolytic machining. The electrode steps feed the workpiece's machining position stepwise, from low to high and from narrow to wide, according to the step height and step width, so as to broach and form a mortise and tenon at the machining position. After the current mortise and tenon on the workpiece is completed, after reset control, the next machining position of the current workpiece is processed for mortise and tenon electrolytic machining, thereby reducing the cost and complexity of mortise and tenon machining. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 is a schematic flowchart of an electrolytic machining method for tenon grooves according to an embodiment of the present invention;

[0037] Figure 2 is a schematic diagram of a tenon groove broaching electrode according to an embodiment of the present invention;

[0038] Figure 3 is a schematic diagram of another structure of the tenon groove broaching electrode according to an embodiment of the present invention;

[0039] Figure 4 is a schematic diagram of another structure of the tenon groove broaching electrode according to an embodiment of the present invention;

[0040] Figure 5 is a schematic diagram of another structure of the tenon groove broaching electrode according to an embodiment of the present invention;

[0041] Figure 6 is a schematic diagram of another structure of the tenon groove broaching electrode according to an embodiment of the present invention;

[0042] Figure 7 is a schematic diagram of another structure of the tenon groove broaching electrode according to an embodiment of the present invention;

[0043] Figure 8 is a schematic diagram of an electrolysis device according to an embodiment of the present invention;

[0044] Figure 9 is a partial structural schematic diagram of an electrolysis device according to an embodiment of the present invention;

[0045] Figure 10 is a schematic diagram of another partial structure of the electrolysis device according to an embodiment of the present invention;

[0046] Figure 11 is a schematic diagram of the structure of an electrolysis machine tool according to an embodiment of the present invention.

[0047] In the accompanying drawings, the reference numerals indicate:

[0048] 1. Tenon and groove broaching electrode; 10. Broaching electrode body; 100. Electrode area setting area; 101. Body end; 1010. First end; 10100. First flange; 10101. First groove; 1011. Second end; 10110. Second flange; 10111. Second groove; 11. Stepped electrode section; 110. Electrode step; 1100. Inclined platform connecting step area; 1101. Step direct connection area; 1102. Step bottom; 1103. Step top; 1104. Inclined platform broaching section; 1105. Platform broaching section; 1106. Segmented rectangular body 1106; 1107. Integrated rectangular body 1107;

[0049] 2. Workpiece; 20. Mortise and tenon;

[0050] 3. Machine tool;

[0051] 4. Liquid cover; 40. Electrolytically machined tenon groove;

[0052] 5. Spindle of an electrolysis machine tool;

[0053] 6. Angle positioning components;

[0054] 7. Workpiece rotation positioning component. Detailed Implementation

[0055] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar methods or methods having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0056] Example 1

[0057] Referring to Figures 1-11, this embodiment provides an electrolytic machining method for tenons and grooves, including the following steps:

[0058] S101. Prepare a tenon and groove broaching electrode, wherein the tenon and groove broaching electrode includes 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 disposed on the outer wall of the broaching electrode body and is electrically connected to the interior of the broaching electrode body; the stepped electrode part includes multiple electrode steps, the multiple electrode steps are distributed along an inclined upward straight line, forming a stepped shape in which the step height gradually increases and the step width gradually widens.

[0059] S102. The tenon and groove broaching electrode is assembled into the liquid cover of the machine tool. The liquid cover is provided with a tenon and groove electrolytic machining port. Electrolyte flows inside the liquid cover and the electrolyte immerses the tenon and groove electrolytic machining port. An angle positioning component is assembled onto the spindle of the electrolytic machine tool, and a workpiece rotation positioning component is assembled onto the angle positioning component. The workpiece is then assembled onto the workpiece rotation positioning component.

[0060] S103. Driven by the spindle of the electrolytic machine tool, the workpiece is positioned above the mortise and tenon electrolytic machining opening. Driven by the workpiece rotation positioning component, the machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining opening.

[0061] S104. The mortise and tenon broaching electrode is driven to move within the liquid shroud by the electrode dragging mechanism installed in the machine tool, so that the stepped electrode part performs mortise and tenon electrolytic machining on the workpiece. During machining, the electrode steps feed the workpiece stepwise according to the step height and the step width, so as to broach and form a mortise and tenon at the machining position.

[0062] S105. After the current tenon groove on the workpiece is processed, control the spindle drive of the electrolytic machine tool to reset and control the electrode drag mechanism to reset. Repeat step S103 to perform tenon groove electrolytic processing at the next processing position of the current workpiece.

[0063] It should be noted that in this embodiment, the tenon broaching electrode is fabricated by comprising a broaching electrode body and a stepped electrode portion. The stepped electrode portion includes multiple electrode steps, which are distributed along an inclined upward straight line, forming a stepped shape with gradually increasing step height and gradually widening step width. The tenon broaching electrode is assembled into the liquid shroud of the machine tool, where electrolyte flows. The electrolyte immerses the tenon groove electrolytic machining port. The angle positioning component is assembled onto the spindle of the electrolytic machine tool, and the workpiece rotation positioning component is assembled onto the angle positioning component. The workpiece is then assembled onto the workpiece rotation positioning component. Driven by the spindle of the electrolytic machine tool, the workpiece is positioned above the mortise and tenon electrolytic machining port. Driven by the workpiece rotation positioning component, the workpiece's machining position is rotated and aligned with the mortise and tenon electrolytic machining port. The mortise and tenon broaching electrode is driven to move within the liquid shroud to perform mortise and tenon electrolytic machining. The electrode steps feed the workpiece's machining position stepwise, from low to high and from narrow to wide, according to the step height and step width, so as to broach and form a mortise and tenon at the machining position. After the current mortise and tenon on the workpiece is completed, after reset control, the next machining position of the current workpiece is processed for mortise and tenon electrolytic machining, thereby reducing the cost and complexity of mortise and tenon machining.

[0064] It should be noted that in this embodiment, after the current tenon groove on the workpiece is processed, the spindle drive of the electrolytic machine tool is controlled to reset, and the electrode dragging mechanism is controlled to reset. Step S103 is repeated to perform tenon groove electrolytic processing at the next processing position of the current workpiece, thereby forming multiple spaced tenons grooves on the workpiece, reducing the cost and complexity of tenon groove processing.

[0065] It should be noted that the workpiece can be a disc-shaped workpiece. By driving the workpiece rotation positioning component, the processing position of the disc-shaped workpiece can be rotated to align with the mortise and tenon electrolytic machining port, thereby forming multiple spaced mortises on the disc-shaped workpiece, reducing the cost and complexity of mortise and tenon machining.

[0066] In some preferred embodiments, driving the workpiece to be positioned above the mortise and tenon electrolytic machining opening by driving the spindle of the electrolytic machine tool can include: driving the workpiece to be positioned above the mortise and tenon electrolytic machining opening by driving the spindle of the electrolytic machine tool in the vertical and horizontal directions of the machine table.

[0067] In some preferred embodiments, the machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining opening by driving the workpiece rotation positioning component, including: rotating the machining position of the workpiece to align with the mortise and tenon electrolytic machining opening by driving the workpiece rotation positioning component to rotate clockwise or counterclockwise.

[0068] Example 2

[0069] Referring to Figures 1-11, this embodiment provides a tenon and groove broaching electrode 1, comprising:

[0070] A broaching electrode body 10, the interior of which is used for conducting current;

[0071] A stepped electrode section 11 is disposed on the outer wall of the broaching electrode body 10 and electrically connected to the interior of the broaching electrode body 10. The stepped electrode section 11 includes multiple electrode steps 110, which are distributed along an inclined upward straight line to form a stepped shape with gradually increasing step height. When the stepped electrode section 11 performs electrolytic machining of the tenon groove 20 on the workpiece 2, the electrode steps 110 feed the workpiece 2 stepwise according to the step height, from low to high and from narrow to wide, so as to broach and form the tenon groove 20 at the machining position.

[0072] It should be noted that the tenon 20 is a complex A-shaped groove. The inner wall of the tenon 20 has multiple pairs of opposing inner wall grooves, and the openings of the tenon 20 vary from wide to narrow. In the prior art, the primary methods for machining the tenon 20 are machining and wire electrical discharge machining (EDM). Machining methods suffer from problems such as complex tool shapes, low tool rigidity leading to easy wear, and burrs and sharp edges on the workpiece 2, resulting in high machining costs and complex processes for the tenon 20. Wire EDM, on the other hand, has lower machining efficiency and is prone to creating a recast layer and heat-affected zone on the surface of the workpiece 2.

[0073] In this embodiment, a broaching electrode body 10 is provided, the interior of which is used to conduct current. A stepped electrode section 11 is provided on the outer wall of the broaching electrode body 10, allowing the stepped electrode section 11 to be electrically connected to the interior of the broaching electrode body 10. At the same time, the stepped electrode section 11 includes multiple electrode steps 110, which are distributed along an inclined upward straight line to form a stepped shape with gradually increasing step height. When the stepped electrode section 11 performs electrolytic machining of the tenon groove 20 on the workpiece 2, the electrode steps 110 feed the workpiece 2 stepwise according to the step height, from low to high and from narrow to wide, so as to broach and form the tenon groove 20 at the machining position, thereby achieving efficient machining.

[0074] In some preferred embodiments, the broaching electrode body 10 is an elongated body; the elongated body includes an electrode area setting area 100 and a body end 101, the body end 101 including a first end 1010 and a second end 1011; the electrode area setting area 100 is located between the first end 1010 and the second end 1011, and is used to set the stepped electrode portion 11. Further, the first end 1010 includes a first flange 10100 and a first groove 10101; the second end 1011 includes a second flange 10110 and a second groove 10111; the first flange 10100 is located on one side of the first groove 10101, and the second flange 10110 is located on one side of the second groove 10111; the electrode area setting area 100 is located between the first groove 10101 and the second groove 10111.

[0075] It should be noted that the elongated body has multiple electrode steps 110 with gradually increasing heights, which facilitates the installation of the elongated body. The elongated body includes a body end 101, which includes a first end 1010 and a second end 1011. The electrode area 100 is located between the first end 1010 and the second end 1011, which facilitates the assembly of the elongated body onto the machine tool 3.

[0076] In some preferred embodiments, the plurality of electrode steps 110 include a ramp connecting step area 1100 and a step direct connection area 1101; the ramp connecting step area 1100 connects to the step direct connection area 1101, and the step height of the ramp connecting step area 1100 is lower than the step height of the step direct connection area 1101. Further, each electrode step 110 of the ramp connecting step area 1100 and the step direct connection area 1101 includes a step bottom 1102 and a step top 1103; the step top 1103 is located above the step bottom 1102, and all step bottoms 1102 are of equal height; all step tops 1103 are distributed along an inclined upward straight line corresponding to the upper ends of all step bottoms 1102, forming a stepped shape with gradually increasing step height. Furthermore, the top 1103 of the step in the inclined platform connecting step area 1100 includes an inclined platform broaching portion 1104 and a platform broaching portion 1105, wherein the inclined platform broaching portion 1104 is connected to the platform broaching portion 1105. Furthermore, the top 1103 of the step in the step direct connection area 1101 includes multiple directly connected tops 1103 of the steps. Furthermore, the inclined platform broaching portion 1104 is a conductor or an insulator, and the platform broaching portion 1105 is a conductor; when the inclined platform broaching portion 1104 is a conductor, the conductor-state inclined platform broaching portion 1104 is electrically connected to the interior of the broaching electrode body 10; the platform broaching portion 1105 is electrically connected to the interior of the broaching electrode body 10.

[0077] It should be noted that the plurality of electrode steps 110 include a ramp connecting step area 1100 and a step direct connection area 1101. The ramp connecting step area 1100 connects to the step direct connection area 1101. The step height of the ramp connecting step area 1100 is lower than the step height of the step direct connection area 1101. During processing, the electrode steps 110 of the ramp connecting step area 1100 process the workpiece 2 sequentially according to the increasing step height. After all the electrode steps 110 of the ramp connecting step area 1100 have processed the workpiece 2, the electrode steps 110 of the step direct connection area 1101 then process the workpiece 2 sequentially according to the increasing step height, thereby forming a high-precision tenon groove 20 at the processing position of the workpiece 2.

[0078] It should be noted that each electrode step 110 of the inclined platform connecting step area 1100 and the step direct connection area 1101 includes a step bottom 1102 and a step top 1103. The step top 1103 is located at the upper end of the step bottom 1102. All the step bottoms 1102 are of equal height, and all the step tops 1103 are distributed at the upper end of all the step bottoms 1102 along an inclined upward straight line, forming a stepped shape with gradually increasing step height. After the stepped electrode steps 110 process the processing position of the workpiece 2 according to the law of increasing step height, a high-precision tenon groove 20 is formed at the processing position of the workpiece 2.

[0079] It should be noted that the top 1103 of the step in the inclined platform connecting step area 1100 includes an inclined platform broaching part 1104 and a platform broaching part 1105. The inclined platform broaching part 1104 is connected to the platform broaching part 1105. The top 1103 of the step in the step direct connection area 1101 includes multiple directly connected tops 1103 of the steps, so that after processing the processing position of the workpiece 2, a high-precision tenon groove 20 is formed at the processing position of the workpiece 2.

[0080] It should be noted that the inclined broaching section 1104 is a conductor or an insulator, and the platform broaching section 1105 is a conductor. When the inclined broaching section 1104 is a conductor, the inclined broaching section 1104 in the conductor state is electrically connected to the inside of the broaching electrode body 10, and the platform broaching section 1105 is electrically connected to the inside of the broaching electrode body 10, thereby satisfying different processing requirements when processing the workpiece 2 at the processing position.

[0081] In a further preferred embodiment, the bottom 1102 of the ramp connecting step area 1100 is a segmented rectangular body 11061109, and the top 1103 of the ramp connecting step area 1100 is located in the middle of the segmented rectangular body 11061109, dividing the segmented rectangular body 11061109 into equal-width sides; the bottom 1102 of the step of the step direct connection area 1101 is a one-piece rectangular body 11071110, and the top 1103 of the step of the step direct connection area 1101 is located in the middle of the one-piece rectangular body 11071110, dividing the one-piece rectangular body 11071110 into equal-width sides.

[0082] It should be noted that the bottom 1102 of the inclined platform connecting step area 1100 is a segmented rectangular body 11061109, and the inclined platform broaching part 1104 and the platform broaching part 1105 of the top 1103 of the inclined platform connecting step area 1100 can be segmented on each corresponding rectangular body. The bottom 1102 of the step of the direct connection area 1101 is a one-piece rectangular body 11071110, and the top 1103 of the step of the direct connection area 1101 can be integrally set on the one-piece rectangular body 11071110.

[0083] Example 3

[0084] Referring to Figures 1-11, this embodiment provides an electrolysis apparatus, including:

[0085] Machine base 3; a liquid cover 4 is provided on the machine base 3, and a tenon groove electrolytic machining port 40 is provided on the liquid cover 4. Electrolyte flows inside the liquid cover 4, and the electrolyte immerses the tenon groove electrolytic machining port 40.

[0086] The tenon and groove broaching electrode 1 described in any of the above embodiments; the tenon and groove broaching electrode 1 is assembled in the liquid cover 4, and the tenon and groove broaching electrode 1 is driven by a driving mechanism to move in a straight line in the liquid cover 4, so as to broach the machining position of the workpiece 2 in a step feed of first low and then high, first narrow and then wide, so as to form a tenon 20 at the machining position.

[0087] The main spindle 5 of the electrolysis machine tool is mounted on one side of the machine base 3 and located above the liquid cover 4.

[0088] Angle positioning component 6; one end of the angle positioning component 6 is connected to the spindle 5 of the electrolytic machine tool, and the other end of the angle positioning component 6 is connected to the workpiece rotation positioning component 7, which is connected to the workpiece 2; under the drive of the spindle 5 of the electrolytic machine tool, the angle positioning component 6 drives the workpiece 2 to be positioned above the tenon and groove electrolytic machining opening 40, and the workpiece rotation positioning component 7 rotates the machining position of the workpiece 2 to align with the tenon and groove electrolytic machining opening 40.

[0089] It should be noted that one end of the angle positioning component 6 is connected to the spindle 5 of the electrolytic machine tool, and the other end is connected to the workpiece rotation positioning component 7. The workpiece rotation positioning component 7 is connected to the workpiece 2. Driven by the spindle 5 of the electrolytic machine tool, the angle positioning component 6 moves the workpiece 2 to be positioned above the tenon groove electrolytic machining opening 40, thereby achieving the positioning of the workpiece 2. In addition, the workpiece rotation positioning component 7 rotates and aligns the machining position of the workpiece 2 with the tenon groove electrolytic machining opening 40. The tenon groove broaching electrode 1 is driven by the drive mechanism to move linearly within the liquid cover 4, providing a step feed of first low and then high, first narrow and then wide to the machining position of the workpiece 2, thereby broaching to form the tenon groove 20 at the machining position.

[0090] It should be noted that the electrolysis device includes the tenon and groove broaching electrode 1 described in any of the above embodiments. The tenon and groove broaching electrode 1 includes: a broaching electrode body 10 and a stepped electrode section 11; the interior of the broaching electrode body 10 is used for conducting current; the stepped electrode section 11 is disposed on the outer wall of the broaching electrode body 10 and is electrically connected to the interior of the broaching electrode body 10; the stepped electrode section 11 includes multiple electrode steps 110, which are distributed along an inclined upward straight line to form a stepped shape with gradually increasing step height; when the stepped electrode section 11 performs electrolytic machining of the tenon and groove 20 on the workpiece 2, the electrode steps 110 feed the workpiece 2 stepwise according to the step height, from low to high and from narrow to wide, so as to broach and form the tenon and groove 20 at the machining position. In addition, the electrolysis device includes this tenon and groove broaching electrode 1, and the electrolysis machine tool includes this tenon and groove broaching electrode 1. Since the stepped electrode section 11 feeds the workpiece 2 to the machining position of the workpiece 2 in a step-by-step manner from low to high and from narrow to wide according to the step height, the workpiece 2 can be electrolytically precision machined in stages from shallow to deep at the machining position, so as to broach and form the tenon 20 at the machining position, thereby reducing the cost and complexity of the tenon 20 machining.

[0091] Example 4

[0092] Referring to Figures 1-11, this embodiment provides an electrolysis machine tool, including the electrolysis device described in the above embodiments.

[0093] It should be noted that the electrolytic machine tool includes an electrolytic device, which includes a tenon and groove broaching electrode 1. The tenon and groove broaching electrode 1 includes a broaching electrode body 10 and a stepped electrode section 11; the interior of the broaching electrode body 10 is used for conducting current; the stepped electrode section 11 is disposed on the outer wall of the broaching electrode body 10 and is electrically connected to the interior of the broaching electrode body 10; the stepped electrode section 11 includes multiple electrode steps 110, which are distributed along an inclined upward straight line to form a stepped shape with gradually increasing step height; when the stepped electrode section 11 performs electrolytic machining of the tenon and groove 20 on the workpiece 2, the electrode steps 110 feed the workpiece 2 stepwise according to the step height, from low to high and from narrow to wide, so as to broach and form the tenon and groove 20 at the machining position. Since the stepped electrode section 11 feeds the workpiece 2 to the machining position of the workpiece 2 in a step-by-step manner from low to high and from narrow to wide according to the step height, the workpiece 2 can be electrolytically precision machined in stages from shallow to deep at the machining position, so as to broach and form the tenon 20 at the machining position, thereby reducing the cost and complexity of the tenon 20 machining.

[0094] The above is a description of the technical solution provided by the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for electrolytic machining of tenons and grooves, characterized in that, Includes the following steps: S101. Prepare a tenon / groove broaching electrode, the tenon / groove broaching electrode comprising a broaching electrode body and a stepped electrode portion; the interior of the broaching electrode body is used for conducting current; the stepped electrode portion is disposed on the outer wall of the broaching electrode body and is electrically connected to the interior of the broaching electrode body; the stepped electrode portion comprises multiple electrode steps, the multiple electrode steps being distributed along an inclined upward straight line, forming a stepped shape with gradually increasing step height and gradually widening step width; S102. Assemble the tenon / groove broaching electrode into the liquid shroud of the machine tool, the liquid shroud being provided with a tenon / groove electrolytic machining port, the interior of the liquid shroud being circulated. An electrolyte is used to immerse the mortise and tenon groove electrolytic machining opening. An angle positioning component is assembled onto the spindle of the electrolytic machine tool, and a workpiece rotation positioning component is assembled onto the angle positioning component, and the workpiece is assembled onto the workpiece rotation positioning component. S103: Driven by the spindle of the electrolytic machine tool, the workpiece is positioned above the mortise and tenon groove electrolytic machining opening. Driven by the workpiece rotation positioning component, the machining position of the workpiece is rotated to align with the mortise and tenon groove electrolytic machining opening. S104: The mortise and tenon broaching electrode is moved within the liquid shroud by an electrode dragging mechanism installed inside the machine tool, so that the stepped electrode section performs mortise and tenon groove electrolysis on the workpiece. During processing, the electrode steps, based on the step height and step width, perform a step feed to the workpiece's processing position, first low then high, first narrow then wide, to broach and form a tenon groove at the processing position; S105, after the current tenon groove on the workpiece is processed, the spindle drive of the electrolytic machine tool is controlled to reset, and the electrode dragging mechanism is controlled to reset, repeating step S103 to perform tenon groove electrolytic processing at the next processing position of the current workpiece; the multiple electrode steps are configured to include a ramp connecting step area and a step direct connection area; the ramp connecting step area is connected to the step direct connection area, and the ramp connecting step area... The step height is lower than the step height of the direct connection area of ​​the steps; each electrode step of the inclined platform connecting the step area and the direct connection area of ​​the steps includes a step bottom and a step top; the step top is located above the step bottom, and all step bottoms are at the same height; all step tops are distributed along an inclined upward straight line at the upper end of all step bottoms, forming a stepped shape with gradually increasing step height; the step top of the inclined platform connecting the step area includes an inclined platform broaching part and a platform broaching part, and the inclined platform broaching part is connected to the platform broaching part; the step top of the direct connection area of ​​the steps includes multiple directly connected step tops.

2. The electrolytic machining method for tenon grooves according to claim 1, characterized in that, Also includes: The broaching electrode body is configured as an elongated body, and the elongated body includes an electrode area and a body end; the body end includes a first end and a second end, and the electrode area is located between the first end and the second end, for setting the stepped electrode portion.

3. The electrolytic machining method for tenon grooves according to claim 2, characterized in that, Also includes: The first end is provided with a first flange and a first groove; the second end is provided with a second flange and a second groove; the first flange is located on one side of the first groove, and the second flange is located on one side of the second groove; the electrode area is located between the first groove and the second groove.

4. The electrolytic machining method for tenon grooves according to claim 1, characterized in that, Also includes: The inclined platform broaching section is configured as a conductor or an insulator, and the platform broaching section is configured as a conductor; when the inclined platform broaching section is a conductor, the inclined platform broaching section in the conductor state is electrically connected to the interior of the broaching electrode body; the platform broaching section is electrically connected to the interior of the broaching electrode body.

5. The electrolytic machining method for tenons and mortises according to any one of claims 1-4, characterized in that, The workpiece is moved above the mortise and tenon electrolytic machining port by driving the spindle of the electrolytic machine tool, including: driving the spindle of the electrolytic machine tool in the vertical and horizontal directions of the machine table to move the workpiece above the mortise and tenon electrolytic machining port.

6. The electrolytic machining method for tenons according to any one of claims 1-4, characterized in that, The machining position of the workpiece is rotated to align with the mortise and tenon electrolytic machining opening by driving the workpiece rotation positioning component, including: rotating the workpiece to align with the mortise and tenon electrolytic machining opening by driving the workpiece rotation positioning component to rotate clockwise or counterclockwise.

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