Electrode rod indexable support structure for EDM / electrolysis machine tools

Abstract

The invention discloses an electrode rod indexable support structure of an electric spark / electrolysis machine tool, comprising a frame, a rotating sleeve, a rotating drive component for driving the rotating sleeve to rotate, an indexing support component, an axial limiting component and an active rotating part 2 are arranged on the frame, the indexing support component is eccentrically connected to the rotating sleeve, the indexing support component comprises a V-shaped groove and an anti-slipping device, an electrode rod is clamped in the V-shaped groove, the electrode rod leans against the V-shaped groove to position the electrode rod axis so that the electrode rod axis is coaxial with the rotating sleeve axis, the anti-slipping device prevents the electrode rod from being separated from the V-shaped groove, a driven rotating part is fixed on the electrode rod, the axis of the active rotating part 2 and the axis of the electrode rod have two states of overlap or non-overlap, the active rotating part 2 is linked to the driven rotating part through a swing arm, the rotating sleeve is sleeved on the outer side of the active rotating part 2, the rotating sleeve and the active rotating part 2 rotate independently of each other, the rotating sleeve drives the indexing support component to rotate around the electrode rod so that the indexing support component does not collide with the workpiece.

Description

Technical Field

[0001] The invention relates to a clamping device for an electrode rod, in particular to an indexable support structure for an electrode rod of an electric spark / electrolysis machine tool, which locates the axis of the electrode rod and improves machining accuracy. Background Art

[0002] Electrical Discharge Machining (EDM), also known as electrical discharge machining or electro-erosion machining, is a process in which pulsed spark discharge is continuously generated between the tool and the workpiece during the machining process, and the metal material is eroded away by using the instantaneous local high temperature generated during the discharge; the tool and the workpiece are not in contact during the machining process. This technology has been widely used in the micro-machining of hard and difficult-to-machine materials such as cemented carbide, die steel, hardened steel, polycrystalline diamond, and can also be used for the micro-machining of low-rigidity and complex-shaped workpieces.

[0003] Microelectrochemical machining refers to a processing method that uses electrochemical machining to obtain high-precision, small-sized parts within the micromachining range (1μm~1mm). It is now widely used in precision and ultra-precision micromachining of special-shaped parts such as cylindrical parts, spline holes, internal gears, molds, valve plates, etc.

[0004] Existing wire cutting machines are generally four-axis machining. For example, the machining quality of the Japanese Sodick slow-feed wire cutting machine AQ400LS is Ramax = 0.2-0.5μm, and the dimensional accuracy is 2μm. However, when the wire cutting machine is machining an inclined surface, the UV axis that adjusts the wire cutting machining angle has poor machining accuracy, which is not conducive to machining. In addition, the cutting line of the wire cutting machine is thin, and the cutting line may float during the impact cooling of the coolant, making the machined surface uneven. When the workpiece machining height is 100mm, the unevenness can reach 10μm. For this reason, it is hoped that the wire cutting machine can be replaced by an electrode rod processing machine.

[0005] The 2005 supplement of Volume 32 of Machinery, "Electro-Spark Contour Machining", introduced the A35R-E EDM contour machining machine tool of Japan Sodick, which can actually achieve a surface roughness Ramax = 10-5μm and a dimensional accuracy of 10-5μm. The EDM contour machining machine tool and the above-mentioned wire cutting machine are both produced by Sodick, and the transmission components, CNC system, and temperature control technology of the electric machining power supply of the machine tool are basically the same, but the processing quality of the two is very different.

[0006] For example, a simple micro-EDM / EC machining spindle with publication number CN111283278A includes a power source module, a power transmission module, and a power induction module. The power induction module includes a tool electrode chuck and a tool electrode. The tool electrode is clamped in the tool electrode chuck, and the tool electrode chuck can drive the tool electrode to rotate.

[0007] Problems with existing EDM / electrolysis machines: When machining the inner wall of a large workpiece, the electrode rod needs to be inserted into the slot of the large workpiece. During the machining process, the electrolyte or sparks generated by the electrical machining will produce impact force on the electrode rod, causing the electrode rod to deflect and increase the error of the electrical machining. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide an electrode rod indexable support structure for an electric spark / electrolysis machine tool that can accurately locate the electrode rod axis, improve machining accuracy, and control the indexable support component from contacting the workpiece.

[0009] The technical solution adopted by the present invention to solve the above technical problems is: an electrode rod indexable support structure of an electric spark / electrolysis machine tool includes a frame, which is characterized in that an active rotating part 1, an indexable support assembly and an axial limit assembly are provided on the frame, the indexable support assembly is connected to the active rotating part 1 and can rotate circumferentially around the axis of the active rotating part 1, the indexable support assembly includes a V-shaped groove and an anti-slip device,

[0010] The electrode rod is clamped in the V-shaped groove, and the electrode rod is placed against the two side walls of the V-shaped groove to position the axis of the electrode rod, so that the axis of the electrode rod is coaxial with the axis of the active rotating member. The anti-slip device is used to prevent the electrode rod from escaping from the V-shaped groove, and the axial limit assembly limits the axial movement of the electrode rod.

[0011] When the electrode rod processes the workpiece, the active rotating member drives the indexing support assembly to rotate around the electrode rod, so as to control the indexing support assembly not to collide with the workpiece.

[0012] A further preferred solution of the present invention is: a radial adjustment component is provided on the active rotating part 1, the radial adjustment component includes a radial displacement bracket, the transfer support component is fixed on the radial displacement bracket, and the radial displacement bracket can move relative to the active rotating part 1 in the radial direction of the active rotating part 1.

[0013] A further preferred embodiment of the present invention is: the anti-slip device includes an anti-slip magnetic attraction part with magnetic force, the anti-slip magnetic attraction part is fixed on the V-shaped groove, the electrode rod is provided with a first attracted component that cooperates with the anti-slip magnetic attraction part to apply force, the first attracted component can be magnetized, and the anti-slip magnetic attraction part applies a magnetic attraction force to the first attracted component to make the electrode rod close to the two side walls of the V-shaped groove to prevent the electrode rod from falling off the V-shaped groove.

[0014] A further preferred embodiment of the present invention is: the axial limiting assembly includes an axial magnetic attraction part with magnetic force, the axial magnetic attraction part is fixed on an active rotating part, the axial magnetic attraction part and the active rotating part are combined to form a blocking part with magnetic force, the electrode rod is provided with a second attracted part that cooperates with the axial magnetic attraction part to apply force, the second attracted part can be magnetized, and the blocking part applies a magnetic attraction force to the second attracted part to pull the electrode rod upward in the axial direction, so that the electrode rod and the blocking part are attracted to limit the axial movement of the electrode rod.

[0015] A further preferred solution of the present invention is that the active rotating member is connected to a lifting frame, and the lifting frame can move up and down relative to the frame.

[0016] Another topic: An electrode rod indexable support structure for an electric spark / electrolysis machine tool, comprising a frame, characterized in that the frame is provided with:

[0017] Rotating sleeve;

[0018] A rotary drive assembly, the rotary drive assembly is connected to the rotary sleeve and drives the rotary sleeve to rotate;

[0019] The transfer support assembly is connected to the rotating sleeve and can rotate circumferentially around the axis of the rotating sleeve. The transfer support assembly includes a V-shaped groove and an anti-slip device.

[0020] An electrode rod is clamped in the V-shaped groove, and the electrode rod is placed against two side walls of the V-shaped groove to position the axis of the electrode rod, so that the axis of the electrode rod is coaxial with the axis of the rotating sleeve, and the anti-slip device is used to prevent the electrode rod from slipping out of the V-shaped groove;

[0021] An axial limit assembly, which is used to limit the axial movement of the electrode rod;

[0022] A driven rotating member is fixed on the electrode rod;

[0023] The active rotating part 2 is fixed with a swing arm, the axis of the active rotating part 2 and the axis of the electrode rod have two states of coincidence or non-coincidence, the active rotating part 2 is linked to the driven rotating part through the swing arm, and the axis of the active rotating part 2 and the axis of the electrode rod are not associated and connected,

[0024] The rotating sleeve is sleeved on the outside of the active rotating part 2, and the rotating sleeve and the active rotating part 2 rotate independently of each other. When the electrode rod processes the workpiece, the rotating sleeve drives the indexing support assembly to rotate around the electrode rod to control the indexing support assembly from colliding with the workpiece.

[0025] A further preferred solution of the present invention is: a radial adjustment component is provided on the rotating sleeve, the radial adjustment component includes a radial displacement bracket, the transfer support component is fixed on the radial displacement bracket, and the radial displacement bracket can move relative to the rotating sleeve in the radial direction of the rotating sleeve.

[0026] A further preferred embodiment of the present invention is: the anti-slip device includes an anti-slip magnetic attraction part with magnetic force, the anti-slip magnetic attraction part is fixed on the V-shaped groove, the electrode rod is provided with a first attracted component that cooperates with the anti-slip magnetic attraction part to apply force, the first attracted component can be magnetized, and the anti-slip magnetic attraction part applies a magnetic attraction force to the first attracted component to make the electrode rod close to the two side walls of the V-shaped groove to prevent the electrode rod from falling off the V-shaped groove.

[0027] A further preferred embodiment of the present invention is: the axial limiting assembly includes an axial magnetic attraction part with magnetic force, the axial magnetic attraction part is fixed on the active rotating part two, the axial magnetic attraction part and the active rotating part two are combined to form a blocking part with magnetic force, the electrode rod is provided with a second attracted part that cooperates with the axial magnetic attraction part to apply force, the second attracted part can be magnetized, and the blocking part applies a magnetic attraction force to the second attracted part to pull the electrode rod upward in the axial direction, so that the electrode rod and the blocking part are attracted to limit the axial movement of the electrode rod.

[0028] A further preferred embodiment of the present invention is that the active rotating part 2 and the rotating sleeve are connected to the same lifting frame, the lifting frame can move up and down relative to the frame, a bearing is sleeved on the outer side of the active rotating part 2, the rotating sleeve is sleeved on the outer side of the bearing, the inner ring of the bearing is connected to the active rotating part 2, and the outer ring of the bearing is connected to the rotating sleeve.

[0029] Compared with the prior art, the advantage of the present invention is that the transfer support assembly includes a V-shaped groove and an anti-slip device, and the electrode rod rests on the two side walls of the V-shaped groove to position the axis of the electrode rod, so that the axis of the electrode rod is coaxial with the axis of the active rotating part, and the anti-slip device is used to prevent the electrode rod from being separated from the V-shaped groove. The electrode rod is accurately positioned through the V-shaped groove, and when the electrode rod is processing the workpiece, the transfer support assembly is arranged on one side of the electrode rod, so that the V-shaped groove plays a radial supporting role for the electrode rod, preventing the electrode rod from being deflected by the impact of electrolyte or electric sparks, thereby improving the accuracy of the electrode rod electrical processing.

[0030] The active rotating member can drive the indexing support assembly to rotate around the electrode rod when the electrode rod is processed, and is used to control the indexing support assembly not to collide with the workpiece, thereby avoiding affecting the processing of the workpiece by the electrode rod.

[0031] The active rotating part 2 is linked to the driven rotating part fixed on the electrode rod through a swing arm, and the electrode rod is then driven to rotate by the driven rotating part. Since the axis of the active rotating part 2 and the axis of the electrode rod are not associated and connected, it is not necessary to make the axis of the electrode rod coaxial with the axis of the active rotating part 2, which facilitates the positioning of the axis of the electrode rod and improves the accuracy of the electrical machining of the electrode rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0033] Figure 1 The overall structure of the EDM / electrolysis machine tool of the first embodiment is shown in FIG. Figure 1 ;

[0034] Figure 2 The overall structure of the EDM / electrolysis machine tool of the first embodiment is shown in FIG. Figure 2 ;

[0035] Figure 3 Schematic diagram of the structure of the indexing support assembly for clamping the electrode rod in Example 1 Figure 1 ;

[0036] Figure 4 Schematic diagram of the structure of the indexing support assembly for clamping the electrode rod in Example 1 Figure 2 ;

[0037] Figure 5 Schematic diagram of the structure of the indexing support assembly for clamping the electrode rod in Example 1 Figure 3 ;

[0038] Figure 6 This is a schematic structural diagram of a radial adjustment assembly according to Embodiment 1;

[0039] Figure 7 This is a cross-sectional view of the indexing support assembly of Example 1 clamping the electrode rod;

[0040] Figure 8 This is a state diagram of the lifting frame of Example 1 driving the active rotating member 1 and the indexing support assembly to rise;

[0041] Fig. 9 The overall structure of the electric spark / electrolysis machine tool of the second embodiment is shown in FIG. Figure 1 ;

[0042] Fig.10 The overall structure of the electric spark / electrolysis machine tool of the second embodiment is shown in FIG. Figure 2 ;

[0043] Fig.11 Schematic diagram of the structure of the second embodiment of the indexing support assembly for clamping the electrode rod Figure 1 ;

[0044] Fig.12 Schematic diagram of the structure of the second embodiment of the indexing support assembly for clamping the electrode rod Figure 2 ;

[0045] Fig.13 Schematic diagram of the structure of the second embodiment of the indexing support assembly for clamping the electrode rod Figure 3 ;

[0046] Fig.14 This is a schematic structural diagram of a radial adjustment assembly according to Embodiment 2;

[0047] Fig.15 It is a cross-sectional view of the central axis rotation of the second embodiment;

[0048] Fig.16 It is a cross-sectional view of the rotation of the rotating sleeve of the second embodiment;

[0049] Fig.17 This is a state diagram of the lifting frame of Example 2 driving the active rotating member 2, the rotating sleeve and the indexing support assembly to rise.

[0050] In the figure: 1. machine tool bed; 2. X-axis displacement mechanism; 21. X-axis motor; 22. X-axis lead screw; 23. X-axis fixed guide rail; 24. X-axis moving guide rail; 3. clamping seat; 31. support seat; 32. positioning column; 33. screw rod; 34. pressing nut; 35. pressing plate; 36. workpiece; 37. groove to be processed; 4. Y-axis displacement mechanism; 41. Y-axis motor; 42. Y-axis fixed guide rail; 43. Y-axis moving guide rail; 44. Y Axis screw rod; 5, frame; 51, lifting frame; 52, mounting hole; 521, second bearing; 522, first bearing; 523, first inner ring edge; 53, first gland; 54, Z-axis motor; 55, Z-axis fixed guide rail; 56, Z-axis screw rod; 57, Z-axis moving guide rail; 6, axial limit assembly; 61, axial magnetic suction member; 62, second suction member; 63, axial support member; 7, transfer support assembly; 71, V-shaped groove; 7 2. Electrode rod; 721. Through hole; 722. Driven rotating member; 723. Pushing arm; 73. Co-position retaining frame; 74. Anti-dropping magnetic attraction member; 75. Processing section; 76. Mounting section; 77. First attraction member; 8. Active rotating member 1; 81. First driving motor; 82. First driving wheel; 83. First belt; 84. First driven wheel; 85. Horizontal frame; 86. Radial adjustment assembly; 861. Radial motor; 862 , radial fixed guide rail; 863, radial screw rod; 864, radial displacement bracket; 87, first outer ring edge; 88, rotating sleeve; 89, center hole; 891, second pressure cover; 892, fourth bearing; 893, third bearing; 894, second inner ring edge; 9, active rotating part II; 91, second driven wheel; 92, second belt; 93, second active wheel; 94, second drive motor; 95, swing arm; 96, second outer ring edge. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0052] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0053] Embodiment 1

[0054] Modern electrospark machining or electrolytic machining is performed by immersing the tool cathode and the workpiece anode in the working pool at the same time, or by spraying electrolyte between the tool cathode and the workpiece anode, so that pulse discharge between the two electrodes produces electro-erosion, and the surface of the workpiece 36 is processed. Finally, the surface shape of the workpiece 36 is made to match the working edge shape of the tool cathode used for electrical machining. The workpiece anode is the workpiece 36 to be processed installed on the machine tool bed 1, and the workpiece 36 is connected to the anode. The tool cathode is an electrode rod 72 installed on the machine tool bed 1 and connected to the cathode.

[0055] Figure 1-Figure 8 As shown, the EDM / electrolysis machine tool comprises a machine bed 1 on which a clamping seat 3 for clamping a workpiece 36 to be processed, a frame 5, an X-axis displacement mechanism 1 and a Y-axis displacement mechanism 4 are provided.

[0056] Figure 1 As shown, the X-axis displacement mechanism 1 includes an X-axis fixed guide rail 23 fixed on the machine tool bed 1, an X-axis movable guide rail 24 slidably arranged on the X-axis fixed guide rail 23, and an X-axis motor 21. The X-axis motor 21 is fixed on the machine tool bed 1. An X-axis screw rod 22 is connected to the output shaft of the X-axis motor 21. An X-axis nut is sleeved on the X-axis screw rod 22. The X-axis movable guide rail 24 is fixedly connected to the X-axis nut. The X-axis screw rod 22 is arranged along the X-axis direction. When the X-axis motor 21 drives the X-axis screw rod 22 to rotate, the X-axis screw rod 22 drives the X-axis movable guide rail 24 to move in the X-axis direction. The X-axis displacement mechanism 1 is the same as the displacement drive mechanism on the machine tools on the existing market.

[0057] Figure 2 As shown, the clamping seat 3 is fixed on the X-axis moving guide rail 24 , and the clamping seat 3 includes two support seats 31 arranged on the left and right, with a space between the two support seats 31 , and the support seats 31 are fixed on the X-axis moving guide rail 24 .

[0058] A pressing plate 35 that can move up and down in the vertical direction is provided on the support seat 31. A screw rod 33 arranged in the Z-axis direction is provided on the support seat 31, and a through hole is provided on the pressing plate 35 for the screw rod 33 to pass through. The pressing plate 35 is sleeved on the screw rod 33 and can move up and down in the Z-axis direction. A pressing nut 34 is sleeved on the screw rod 33, and the pressing nut 34 is located above the pressing plate 35. When the workpiece 36 is placed on the two support seats 31, the pressing nut 34 is screwed down so that the pressing nut 34 presses the pressing plate 35 tightly against the workpiece 36. The pressing plates 35 on the two support seats 31 press both sides of the workpiece 36 on the surfaces of the two support seats 31 to fix the workpiece 36. A large groove 37 to be processed is provided on the workpiece 36.

[0059] In addition, the support seat 31 is provided with a positioning column 32 arranged in the Z-axis direction. There are two positioning columns 32, and the two positioning columns 32 are located on both sides of the screw rod 33. The pressure plate 35 is provided with a positioning hole that matches the positioning column 32. The two positioning columns 32 are inserted into the positioning holes to limit the pressure plate 35 to move in the Z-axis direction to prevent the pressure plate 35 from swinging left and right.

[0060] Figure 3 As shown, the Y-axis displacement mechanism 4 includes a Y-axis fixed guide rail 42 fixed on the machine tool bed 1, a Y-axis movable guide rail 43 slidably arranged on the Y-axis fixed guide rail 42, and a Y-axis motor 41. The Y-axis motor 41 is fixed on the machine tool bed 1. A Y-axis screw rod 44 is connected to the output shaft of the Y-axis motor 41. A Y-axis nut is sleeved on the Y-axis screw rod 44. The Y-axis movable guide rail 43 is fixedly connected to the Y-axis nut. The Y-axis screw rod 44 is arranged along the Y-axis direction. When the Y-axis motor 41 drives the Y-axis screw rod 44 to rotate, the Y-axis screw rod 44 drives the Y-axis movable guide rail 43 to move in the Y-axis direction. The Y-axis displacement mechanism 4 is the same as the displacement drive mechanism on the machine tools on the existing market.

[0061] The frame 5 is fixed on the Y-axis moving guide rail 43.

[0062] The frame 5 is provided with a lifting frame 51, an active rotating member 8, a transfer support assembly 7 and an axial limit assembly 6.

[0063] Figure 4As shown, the lifting frame 51 can move up and down relative to the frame 5 in the Z-axis direction. Specifically, a Z-axis fixed guide rail 55 and a Z-axis motor 54 are fixed on the frame 5, a Z-axis moving guide rail 57 is slidably connected to the Z-axis fixed guide rail 55, a Z-axis screw rod 56 is fixedly connected to the output shaft of the Z-axis motor 54, a Z-axis nut is sleeved on the Z-axis screw rod 56, the Z-axis moving guide rail 57 is fixedly connected to the Z-axis nut, and the Z-axis screw rod 56 is arranged along the Z-axis direction. When the Z-axis motor 54 drives the Z-axis screw rod 56 to rotate, the Z-axis screw rod 56 drives the Z-axis moving guide rail 57 to move up and down in the Z-axis direction, and the lifting frame 51 is fixed on the Z-axis moving guide rail 57, and the Z-axis moving guide rail 57 moves up and down with the lifting frame 51. The structure of the coordinated movement of the Z-axis fixed guide rail 55 and the Z-axis moving guide rail 57 is the same as the displacement drive mechanism of the machine tool on the existing market.

[0064] The active rotating member 8 is connected to the lifting frame 51 , and the active rotating member 8 can rotate relative to the lifting frame 51 .

[0065] Specifically, a mounting hole 52 is provided on the lifting frame 51, and the active rotating member 8 is rotatably mounted in the mounting hole 52. The axis of the active rotating member 8 is arranged in the Z-axis direction, and the upper and lower ends of the active rotating member 8 are respectively exposed from the mounting hole 52.

[0066] Figure 7 As shown, a bearing for reducing the rotation friction of the active rotating member 8 is provided between the active rotating member 8 and the mounting hole 52, and the bearing is sleeved on the active rotating member 8. The bearing includes a first bearing 522 and a second bearing 521. A first inner ring edge 523 protruding inward is provided at the lower end of the mounting hole 52. A circle of first outer ring edge 87 is provided on the circumferential outer wall of the active rotating member 8. The first bearing 522 is placed on the first inner ring edge 523. The first inner ring edge 523 supports the outer ring of the first bearing 522. The outer ring of the first bearing 522 is connected to the inner wall of the mounting hole 52. The lower end of the active rotating member 8 is inserted into the first bearing 522 and connected to the inner ring. The lower part of the first outer ring edge 87 contacts and presses on the inner ring of the first bearing 522. On the upper side, the second bearing 521 is sleeved on the upper end of the active rotating member 8, the active rotating member 8 is connected to the inner ring of the second bearing 521, the outer ring of the second bearing 521 is connected to the inner wall of the mounting hole 52, the inner ring of the second bearing 521 is pressed on the upper side of the first outer ring edge 87, the upper end opening of the mounting hole 52 is connected to the first pressure cover 53, the center of the first pressure cover 53 is provided with a hole for the active rotating member 8 to pass through, the first pressure cover 53 is pressed on the outer ring of the second bearing 521 to limit the axial movement of the first bearing 522, the second bearing 521 and the active rotating member 8. The first pressure cover 53 is fixedly connected to the lifting frame 51 by screws.

[0067] Figure 4As shown, the lifting frame 51 is provided with a first driving motor 81, the output shaft of the first driving motor 81 is connected to a first driving wheel 82, the upper end of the driving rotating member 8 is fixed with a first driven wheel 84, a first belt 83 is connected between the first driven wheel 84 and the first driving wheel 82, the first driving motor 81 drives the first driving wheel 82 to rotate, the first driving wheel 82 drives the first driven wheel 84 to rotate through the first belt 83, so that the driving rotating member 8 rotates. The first driven wheel 84 is fixedly connected to the upper end of the driving rotating member 8 by screws.

[0068] Figure 5 , Figure 6 As shown, the indexing support assembly 7 is connected to the active rotating member 8 and can rotate circumferentially around the axis of the active rotating member 8. A cross frame 85 extending outward is provided on the outer wall of the active rotating member 8. The cross frame 85 is integrally formed with the active rotating member 8. The indexing support assembly 7 is connected to the cross frame 85. The indexing support assembly 7 is eccentric to the axis of the active rotating member 8.

[0069] The transfer support assembly 7 includes an open horizontally arranged V-shaped groove 71 and an anti-slip device.

[0070] The electrode rod 72 is clamped in the V-shaped groove 71. The electrode rod 72 is positioned against the two side walls of the V-shaped groove 71 to position the axis of the electrode rod 72, so that the axis of the electrode rod 72 is coaxial with the axis of the active rotating member 8. The V-shaped groove 71 can be a V-shaped long groove with an extension length in the Z-axis direction, and the electrode rod 72 is positioned and supported by the V-shaped long groove; or two V-shaped grooves 71 can be provided, and the two V-shaped grooves 71 are parallel and correspond to each other in the upper and lower positions. The electrode rod 72 is positioned against the two side walls of the two V-shaped grooves 71, and the two V-shaped grooves 71 radially support the electrode rod 72. Part of the electrode rod 72 is exposed from the horizontal opening of the V-shaped groove 71 for processing the workpiece 36.

[0071] Preferably, two V-shaped grooves 71 are provided, and the two V-shaped grooves 71 are connected to the same co-positioned retaining frame 73. The two V-shaped grooves 71 are parallel and have corresponding upper and lower positions. The co-positioned retaining frame 73 is connected to the cross frame 85. The electrode rod 72 includes two mounting sections 76 for matching the V-shaped grooves 71, and a processing section 75 for processing. The two mounting sections 76 have the same diameter. The two mounting sections 76 of the electrode rod 72 are respectively placed on the groove walls of the upper and lower V-shaped grooves 71 to position the axis of the electrode rod 72.

[0072] The anti-slip device is used to prevent the electrode rod 72 from escaping from the V-shaped groove 71 from the horizontal opening. Preferably, the anti-slip device includes an anti-slip magnetic suction member 74 with magnetic force, which can be an electromagnet or a permanent magnet. The anti-slip magnetic suction member 74 is fixed on the V-shaped groove 71. The electrode rod 72 is provided with a first suction component 77 that cooperates with the anti-slip magnetic suction member 74 to apply force. The first suction component 77 can be magnetized, such as iron, cobalt, nickel and alloys thereof. The anti-slip magnetic suction member 74 applies a magnetic suction force to the first suction component 77 to make the electrode rod 72 close to the two side walls of the V-shaped groove 71 to prevent the electrode rod 72 from escaping from the V-shaped groove 71.

[0073] The electrode rod 72 has a through hole 721 extending through the electrode rod 72 along its axis at its center. The first suction receiving component 77 is a rod-shaped structure. The first suction receiving component 77 is inserted into the through hole 721 and is tightly matched with the electrode rod 72 .

[0074] The axial limiting assembly 6 limits the axial movement of the electrode rod 72. Preferably, the axial limiting assembly 6 includes an axial magnetic attraction member 61 with magnetic force. The axial magnetic attraction member 61 can be an electromagnet or a permanent magnet. The axial magnetic attraction member 61 is fixed on the active rotating member 8. The axial magnetic attraction member 61 and the active rotating member 8 are combined to form a blocking member with magnetic force. The electrode rod 72 is provided with a second attracted member 62 that cooperates with the axial magnetic attraction member 61 to apply force. The second attracted member 62 can be magnetized, such as iron, cobalt, nickel and their alloys. The blocking member applies a magnetic force to the second attracted member 62 to pull the electrode rod 72 upward in the axial direction, so that the electrode rod 72 and the blocking member are attracted to each other, so that the end face of the upper end of the electrode rod 72 presses against the blocking member to limit the axial movement of the electrode rod 72. The first attracted component 77 and the second attracted component 62 can be the same component. The anti-slip magnetic attraction component 74 applies a radial magnetic attraction force to the circumference of the above-mentioned rod-like structure, so that the electrode rod 72 can be attracted in the V-shaped groove 71. The axial magnetic attraction component 61 applies an axial magnetic attraction force to the end face of the rod-like structure, so that the end face of the electrode rod 72 can be attracted to the blocking component.

[0075] When the electrode rod 72 processes the workpiece 36, the electrode rod 72 extends into the groove 37 to be processed on the workpiece 36, and the X-axis displacement mechanism 1 and the Y-axis displacement mechanism 4 drive the electrode rod 72 and the workpiece 36 to relative displacement in the X-axis and Y-axis directions, so that the electrode rod 72 can be processed along the side wall of the groove 37 to be processed on the workpiece 36, and the electrode rod 72 processes the surface to be processed of the workpiece 36 into an edge of a desired shape, and the working edge shape of the electrode rod 72 is consistent with the side shape of the workpiece 36 processed by the electrode rod 72. During the processing, the active rotating part 8 rotates through the cross frame 85 to drive the indexing support assembly 7 to rotate around the electrode rod 72, so as to control the indexing support assembly 7 not to collide with the workpiece 36, so as to avoid affecting the electrode rod 72 on the processing of a circle of the inner wall of the groove 37 to be processed in the workpiece 36, and the V-shaped groove 71 plays a role of radial support for the electrode rod 72 during the processing, so as to avoid the electrode rod 72 from swinging and increasing the processing error.

[0076] Preferably, the processing parts of the indexing support assembly 7 and the workpiece 36 are always located on opposite sides of the electrode rod 72 , and at this time, the supporting effect of the V-shaped groove 71 is optimal.

[0077] Figure 8 As shown, after the processing is completed, the active rotating member 8 can be driven upward by the lifting frame 51 to move the electrode rod 72 upward from the groove 37 to be processed of the workpiece 36, and then the electrode rod 72 can be taken out from the V-shaped groove 71.

[0078] Figure 6 As shown, when the electrode rod 72 is worn or replaced with an electrode rod 72 of a different diameter, it is necessary to readjust the position of the electrode rod 72 so that the axis of the electrode rod 72 is coaxial with the axis of the active rotating member 8. Specifically, a radial adjustment assembly 86 is provided on the active rotating member 8, and the radial adjustment assembly 86 includes a radial displacement bracket 864, a radial fixed guide rail 862, a radial motor 861, a radial screw 863 and a radial nut. The radial fixed guide rail 862 and the radial motor 861 are fixed on the cross frame 85, the radial displacement bracket 864 is slidably arranged on the radial fixed guide rail 862, the radial screw 863 is connected to the output shaft of the radial motor 861, the radial screw 863 is arranged radially along the active rotating member 8, the radial nut is sleeved on the radial screw 863, and the radial displacement bracket 864 is fixed to the radial nut. The radial motor 861 drives the radial screw 863 to rotate, and the radial screw 863 drives the radial nut and the radial displacement bracket 864 to move forward and backward relative to the active rotating part 8 in the radial direction of the active rotating part 8. The above-mentioned indexing support assembly 7 is fixed on the radial displacement bracket 864. When the position of the electrode rod 72 needs to be adjusted, the V-shaped groove 71 is driven by the radial displacement bracket 864 to move forward and backward relative to the active rotating part 8 in the radial direction of the active rotating part 8, so that the axis of the electrode rod 72 clamped in the V-shaped groove 71 is coaxial with the axis of the active rotating part 8, which is convenient for adjustment and has stronger applicability. The radial adjustment assembly 86 is the same as the displacement drive mechanism on the machine tool on the existing market.

[0079] Embodiment 2

[0080] Modern electrospark machining or electrolytic machining processes the workpiece surface by immersing the tool cathode and the workpiece anode in the working pool at the same time, or by spraying electrolyte between the tool cathode and the workpiece anode, so that pulse discharge between the two electrodes produces electro-erosion, and finally the surface shape of the workpiece 36 is made to match the working edge shape of the tool cathode used for electrical machining. The workpiece anode is the workpiece 36 to be processed installed on the machine tool bed 1, and the workpiece 36 is connected to the anode. The tool cathode is an electrode rod 72 installed on the machine tool bed 1 and connected to the cathode.

[0081] Figure 9-Figure 17As shown, the EDM / electrolysis machine tool comprises a machine bed 1 on which a clamping seat 3 for clamping a workpiece 36 to be processed, a frame 5, an X-axis displacement mechanism 1 and a Y-axis displacement mechanism 4 are provided.

[0082] Fig. 9 As shown, the X-axis displacement mechanism 1 includes an X-axis fixed guide rail 23 fixed on the machine tool bed 1, an X-axis movable guide rail 24 slidably arranged on the X-axis fixed guide rail 23, and an X-axis motor 21. The X-axis motor 21 is fixed on the machine tool bed 1. An X-axis screw rod 22 is connected to the output shaft of the X-axis motor 21. An X-axis nut is sleeved on the X-axis screw rod 22. The X-axis movable guide rail 24 is fixedly connected to the X-axis nut. The X-axis screw rod 22 is arranged along the X-axis direction. When the X-axis motor 21 drives the X-axis screw rod 22 to rotate, the X-axis screw rod 22 drives the X-axis movable guide rail 24 to move in the X-axis direction. The X-axis displacement mechanism 1 is the same as the displacement drive mechanism on the machine tools on the existing market.

[0083] Fig.10 As shown, the clamping seat 3 is fixed on the X-axis moving guide rail 24 , and the clamping seat 3 includes two support seats 31 arranged on the left and right, with a space between the two support seats 31 , and the support seats 31 are fixed on the X-axis moving guide rail 24 .

[0084] A pressing plate 35 that can move up and down in the vertical direction is provided on the support seat 31. A screw rod 33 arranged in the Z-axis direction is provided on the support seat 31, and a through hole is provided on the pressing plate 35 for the screw rod 33 to pass through. The pressing plate 35 is sleeved on the screw rod 33 and can move up and down in the Z-axis direction. A pressing nut 34 is sleeved on the screw rod 33, and the pressing nut 34 is located above the pressing plate 35. When the workpiece 36 is placed on the two support seats 31, the pressing nut 34 is screwed down so that the pressing nut 34 presses the pressing plate 35 tightly against the workpiece 36. The pressing plates 35 on the two support seats 31 press both sides of the workpiece 36 on the surfaces of the two support seats 31 to fix the workpiece 36. A large groove 37 to be processed is provided on the workpiece 36.

[0085] In addition, the support seat 31 is provided with a positioning column 32 arranged in the Z-axis direction. There are two positioning columns 32, and the two positioning columns 32 are located on both sides of the screw rod 33. The pressure plate 35 is provided with a positioning hole that matches the positioning column 32. The two positioning columns 32 are inserted into the positioning holes to limit the pressure plate 35 to move in the Z-axis direction to prevent the pressure plate 35 from swinging left and right.

[0086] Fig.11As shown, the Y-axis displacement mechanism 4 includes a Y-axis fixed guide rail 42 fixed on the machine tool bed 1, a Y-axis movable guide rail 43 slidably arranged on the Y-axis fixed guide rail 42, and a Y-axis motor 41. The Y-axis motor 41 is fixed on the machine tool bed 1. A Y-axis screw rod 44 is connected to the output shaft of the Y-axis motor 41. A Y-axis nut is sleeved on the Y-axis screw rod 44. The Y-axis movable guide rail 43 is fixedly connected to the Y-axis nut. The Y-axis screw rod 44 is arranged along the Y-axis direction. When the Y-axis motor 41 drives the Y-axis screw rod 44 to rotate, the Y-axis screw rod 44 drives the Y-axis movable guide rail 43 to move in the Y-axis direction. The Y-axis displacement mechanism 4 is the same as the displacement drive mechanism on the machine tools on the existing market.

[0087] The frame 5 is fixed on the Y-axis moving guide rail 43.

[0088] The frame 5 is provided with a lifting frame 51 , a rotating sleeve 88 , a rotating driving assembly, a transfer supporting assembly 7 and an axial limiting assembly 6 .

[0089] Fig.12 As shown, the lifting frame 51 can move up and down relative to the frame 5 in the Z-axis direction. Specifically, a Z-axis fixed guide rail 55 and a Z-axis motor 54 are fixed on the frame 5, a Z-axis moving guide rail 57 is slidably connected to the Z-axis fixed guide rail 55, a Z-axis screw rod 56 is fixedly connected to the output shaft of the Z-axis motor 54, a Z-axis nut is sleeved on the Z-axis screw rod 56, the Z-axis moving guide rail 57 is fixedly connected to the Z-axis nut, and the Z-axis screw rod 56 is arranged along the Z-axis direction. When the Z-axis motor 54 drives the Z-axis screw rod 56 to rotate, the Z-axis screw rod 56 drives the Z-axis moving guide rail 57 to move up and down in the Z-axis direction, and the lifting frame 51 is fixed on the Z-axis moving guide rail 57, and the Z-axis moving guide rail 57 moves up and down with the lifting frame 51. The structure of the coordinated movement of the Z-axis fixed guide rail 55 and the Z-axis moving guide rail 57 is the same as the displacement drive mechanism of the machine tool on the existing market.

[0090] The rotating sleeve 88 is connected to the lifting frame 51 , and the rotating sleeve 88 can rotate relative to the lifting frame 51 .

[0091] Fig.15 , Fig.16 As shown, specifically: a mounting hole 52 is opened on the lifting frame 51, and the rotating sleeve 88 is rotatably installed in the mounting hole 52. The axis of the rotating sleeve 88 is arranged in the Z axial direction, and the upper and lower ends of the rotating sleeve 88 are respectively exposed from the mounting hole 52.

[0092] A bearing is provided between the rotating sleeve 88 and the mounting hole 52 to reduce the rotation friction of the rotating sleeve 88, and the bearing is sleeved on the rotating sleeve 88. The bearing includes a first bearing 522 and a second bearing 521. A first inner ring edge 523 protruding inward is provided at the lower end of the mounting hole 52. A circle of first outer ring edge 87 is provided on the circumferential outer wall of the rotating sleeve 88. The first bearing 522 is placed on the first inner ring edge 523. The first inner ring edge 523 supports the outer ring of the first bearing 522. The outer ring of the first bearing 522 is connected to the inner wall of the mounting hole 52. The lower end of the rotating sleeve 88 is inserted into the first bearing 522 and connected to the inner ring. The lower part of the first outer ring edge 87 contacts and presses against the inner ring of the first bearing 522. The second bearing 521 is sleeved on the upper end of the rotating sleeve 88, the rotating sleeve 88 is connected to the inner ring of the second bearing 521, the outer ring of the second bearing 521 is connected to the inner wall of the mounting hole 52, the inner ring of the second bearing 521 is pressed on the upper side of the first outer ring edge 87, the upper end opening of the mounting hole 52 is connected with a first gland 53, the center of the first gland 53 is provided with a hole for the rotating sleeve 88 to pass through, the first gland 53 is pressed on the outer ring of the second bearing 521 to limit the axial movement of the first bearing 522, the second bearing 521 and the rotating sleeve 88. The first gland 53 is fixedly connected to the lifting frame 51 by screws.

[0093] Fig.12 As shown, the rotary drive assembly includes a first drive motor 81 fixed on the lifting frame 51, a first driving wheel 82 connected to the output shaft of the first drive motor 81, and a first driven wheel 84 connected to the upper end of the rotating sleeve 88. A first belt 83 is connected between the first driven wheel 84 and the first driving wheel 82. The first drive motor 81 drives the first driving wheel 82 to rotate, and the first driving wheel 82 drives the first driven wheel 84 to rotate through the first belt 83, thereby rotating the rotating sleeve 88. The first driven wheel 84 is fixedly connected to the upper end of the rotating sleeve 88 by screws.

[0094] Fig.13 , Fig.14 As shown, the indexing support assembly 7 is connected to the rotating sleeve 88 and can rotate circumferentially around the axis of the rotating sleeve 88. A horizontal frame 85 extending outward is provided on the outer wall of the rotating sleeve 88. The horizontal frame 85 is integrally formed with the rotating sleeve 88. The indexing support assembly 7 is connected to the horizontal frame 85. The indexing support assembly 7 is eccentric to the axis of the rotating sleeve 88.

[0095] The transfer support assembly 7 includes an open horizontally arranged V-shaped groove 71 and an anti-slip device.

[0096] The electrode rod 72 is clamped in the V-shaped groove 71. The electrode rod 72 is positioned against the two side walls of the V-shaped groove 71 to position the axis of the electrode rod 72, so that the axis of the electrode rod 72 is coaxial with the axis of the rotating sleeve 88. The V-shaped groove 71 can be a V-shaped long groove with an extension length in the Z-axis direction, and the electrode rod 72 is positioned and supported by the V-shaped long groove; or two V-shaped grooves 71 can be provided, and the two V-shaped grooves 71 are parallel and correspond to each other in the upper and lower positions. The electrode rod 72 is positioned against the two side walls of the two V-shaped grooves 71, and the two V-shaped grooves 71 radially support the electrode rod 72. Part of the electrode rod 72 is exposed from the horizontal opening of the V-shaped groove 71 for processing the workpiece 36.

[0097] Preferably, two V-shaped grooves 71 are provided, and the two V-shaped grooves 71 are connected to the same co-positioned retaining frame 73. The two V-shaped grooves 71 are parallel and have corresponding upper and lower positions. The co-positioned retaining frame 73 is connected to the cross frame 85. The electrode rod 72 includes two mounting sections 76 for matching the V-shaped grooves 71, and a processing section 75 for processing. The two mounting sections 76 have the same diameter. The two mounting sections 76 of the electrode rod 72 are respectively placed on the groove walls of the upper and lower V-shaped grooves 71 to position the axis of the electrode rod 72.

[0098] The anti-slip device is used to prevent the electrode rod 72 from escaping from the V-shaped groove 71 from the horizontal opening. Preferably, the anti-slip device includes an anti-slip magnetic suction member 74 with magnetic force, which can be an electromagnet or a permanent magnet. The anti-slip magnetic suction member 74 is fixed on the V-shaped groove 71. The electrode rod 72 is provided with a first suction component 77 that cooperates with the anti-slip magnetic suction member 74 to apply force. The first suction component 77 can be magnetized, such as iron, cobalt, nickel and alloys thereof. The anti-slip magnetic suction member 74 applies a magnetic suction force to the first suction component 77 to make the electrode rod 72 close to the two side walls of the V-shaped groove 71 to prevent the electrode rod 72 from escaping from the V-shaped groove 71.

[0099] The electrode rod 72 has a through hole 721 extending through the electrode rod 72 along its axis at its center. The first suction receiving component 77 is a rod-shaped structure. The first suction receiving component 77 is inserted into the through hole 721 and is tightly matched with the electrode rod 72 .

[0100] Fig.13 , Fig.14As shown, the frame 5 is also provided with an active rotating member 29 and a driven rotating member 722. The driven rotating member 722 is fixed on the electrode rod 72. The axis of the active rotating member 29 and the electrode rod 72 have two states of overlap or non-overlap. A swing arm 95 is fixed on the active rotating member 29. The active rotating member 29 is linked to the driven rotating member 722 through the swing arm 95. When the active rotating member 29 rotates, it is linked with the driven rotating member 722 through the swing arm 95, thereby driving the driven rotating member 722 to rotate. The driven rotating member 722 drives the electrode rod 72 to rotate. The axis of the active rotating member 29 and the axis of the electrode rod 72 are not associated, that is, the axis of the electrode rod 72 is not connected to the axis of the active rotating member 29. The swing arm 95 is fixedly connected to the active rotating member 29 by screws.

[0101] The active rotating member 29 is arranged on the lifting frame 51, the swing arm 95 is eccentric to the axis of the active rotating member 29, the swing arm 95 has a vertical extension length, the driven rotating member 722 is provided with a closed loop or non-closed loop slot, or the driven rotating member 722 is provided with a push arm 723, the swing arm 95 leans against the inner wall of the slot or the push arm 723 to push the driven rotating member 722 to rotate, and then drives the electrode rod 72 to rotate through the driven rotating member 722. The swing arm 95 can freely move relative to the slot or the push arm 723 in the axial and radial directions so that the vibration of the active rotating member 29 will not be transmitted to the electrode rod 72 through the swing arm 95, so as to avoid affecting the stability of the electrode rod 72, and the structure of the swing arm 95 will not affect the positioning of the axis of the electrode rod 72.

[0102] The rotating sleeve 88 is sleeved on the outside of the active rotating part 29, and the rotating sleeve 88 and the active rotating part 29 rotate independently of each other. Preferably, the active rotating part 29 is the central axis, and the rotating sleeve 88 has a central hole 89 extending axially therethrough. The central axis passes through the central hole 89, and both ends of the central axis are exposed from the openings at both ends of the central hole 89. A bearing for reducing the rotational friction of the central axis is provided between the central axis and the inner wall of the central hole 89, and the bearing is sleeved on the central axis for supporting the central axis. The bearing includes a third bearing 893 and a fourth bearing 892. A second inner ring edge 894 protruding inward is provided at the lower end of the center hole 89. A second outer ring edge 96 is provided on the circumferential outer wall of the center shaft. The third bearing 893 is placed on the second inner ring edge 894 to support the center shaft. The second inner ring edge 894 supports the outer ring of the third bearing 893. The outer ring of the third bearing 893 is connected to the inner wall of the center hole 89. The lower end of the center shaft is inserted into the third bearing 893 and connected to the inner ring. The lower part of the second outer ring edge 96 contacts and presses on the third shaft. On the inner ring of the bearing 893, the fourth bearing 892 is sleeved on the upper end of the central shaft, the central shaft is connected to the inner ring of the fourth bearing 892, the outer ring of the fourth bearing 892 is connected to the inner wall of the central hole 89, the inner ring of the fourth bearing 892 touches and presses on the upper side of the second outer ring edge 96, the upper end opening of the central hole 89 is connected with a second pressure cap 891, the center of the second pressure cap 891 is provided with a hole for the central shaft to pass through, and the second pressure cap 891 is pressed on the outer ring of the fourth bearing 892 to limit the axial movement of the third bearing 893, the fourth bearing 892 and the central shaft. The second pressure cap 891 is fixedly connected to the rotating sleeve 88 by screws. When the third bearing 893 and the fourth bearing 892 rotate, the inner and outer rings will deflect, causing the axis of the active rotating member 29 to deflect, resulting in the axis of the active rotating member 29 and the axis of the electrode rod 72 having two states of overlap or non-overlap.

[0103] The lifting frame 51 is provided with a second driving motor 94, the output shaft of the second driving motor 94 is connected to a second driving wheel 93, the upper end of the central shaft is fixed with a second driven wheel 91, a second belt 92 is connected between the second driven wheel 91 and the second driving wheel 93, the second driving motor 94 drives the second driving wheel 93 to rotate, and the second driving wheel 93 drives the second driven wheel 91 to rotate through the second belt 92, thereby rotating the central shaft. The second driven wheel 91 is fixedly connected to the upper end of the central shaft by screws, and the swing arm 95 is fixed to the lower end of the central shaft by screws.

[0104] The driven rotating member 722 is a sleeve ring, which is sleeved on the electrode rod 72 . The sleeve ring can be fixedly connected to the electrode rod 72 by screws, and the sleeve ring can also be tightly matched with the electrode rod 72 .

[0105] Fig.15 , Fig.16As shown, the axial limiting assembly 6 limits the axial movement of the electrode rod 72. Preferably, the axial limiting assembly 6 includes an axial magnetic attraction member 61 with magnetic force. The axial magnetic attraction member 61 can be an electromagnet or a permanent magnet. The axial magnetic attraction member 61 is fixed on the active rotating member 9. The axial magnetic attraction member 61 and the active rotating member 9 are combined to form a blocking member with magnetic force. The electrode rod 72 is provided with a second attracted member 62 that cooperates with the axial magnetic attraction member 61 to apply force. The second attracted member 62 can be magnetized, such as iron, cobalt, nickel and their alloys. The blocking member applies a magnetic force to the second attracted member 62 to pull the electrode rod 72 upward in the axial direction, so that the electrode rod 72 and the blocking member are attracted to each other, so that the end face of the upper end of the electrode rod 72 presses against the blocking member to limit the axial movement of the electrode rod 72. The first attracted component 77 and the second attracted component 62 can be the same component. The anti-slip magnetic attraction component 74 applies a radial magnetic attraction force to the circumference of the above-mentioned rod-like structure, so that the electrode rod 72 can be attracted in the V-shaped groove 71. The axial magnetic attraction component 61 applies an axial magnetic attraction force to the end face of the rod-like structure, so that the end face of the electrode rod 72 can be attracted to the blocking component.

[0106] In addition, an axial support member 63 can be provided between the end face of the electrode rod 72 and the blocking member. When the electrode rod 72 is pulled upward by the magnetic attraction force and attracted to the blocking member, the axial support member 63 is used to contact and connect the electrode rod 72 and the blocking member to reduce the friction force when the electrode rod 72 rotates. The axial support member 63 is a member fixed to the upper end face of the electrode rod 72, or the axial support member 63 is a member fixed to the blocking member, or the axial support member 63 is an independent member between the blocking member and the end face of the electrode rod 72, such as a ball.

[0107] And when the electrode rod 72 is pulled to one side by the magnetic force and engaged with the blocking component, the axial support member 63 is located at the center of the upper end surface of the electrode rod 72, the contact portion on the axial support member 63 is in point contact with the adjacent contact component, and the contact point of the axial support member 63 is on the axis of the electrode rod 72.

[0108] When the electrode rod 72 processes the workpiece 36, the electrode rod 72 extends into the groove 37 to be processed on the workpiece 36, and the active rotating member 29 drives the swing arm 95 to rotate eccentrically. The swing arm 95 rotates by pushing the driven rotating member 722 to rotate, thereby rotating the electrode rod 72. The X-axis displacement mechanism 1 and the Y-axis displacement mechanism 4 drive the electrode rod 72 and the workpiece 36 to relatively displace in the X-axis and Y-axis directions, so that the electrode rod 72 can be processed along the side wall of the groove 37 to be processed on the workpiece 36, and the electrode rod 72 processes the surface of the workpiece 36 to be processed. The working edge shape of the electrode rod 72 is consistent with the side shape of the workpiece 36 after being processed by the electrode rod 72. During the processing, the rotating sleeve 88 rotates through the cross frame 85 to drive the transfer support assembly 7 to rotate around the electrode rod 72, which is used to control the transfer support assembly 7 not to collide with the workpiece 36, avoiding affecting the electrode rod 72 on the inner wall processing of the groove 37 to be processed in the workpiece 36. The V-shaped groove 71 plays a role of radial support for the electrode rod 72 during the processing, avoiding the deviation of the electrode rod 72 and increasing the processing error.

[0109] Preferably, the processing parts of the indexing support assembly 7 and the workpiece 36 are always located on opposite sides of the electrode rod 72 , and at this time, the supporting effect of the V-shaped groove 71 is optimal.

[0110] Fig.17 As shown, after the processing is completed, since the rotating sleeve 88, the active rotating part 29 and the transfer support assembly 7 are all arranged on the same lifting frame 51, the lifting frame 51 can drive the rotating sleeve 88, the active rotating part 29 and the transfer support assembly 7 to move upward, so that the electrode rod 72 is moved upward from the groove 37 to be processed of the workpiece 36, and then the electrode rod 72 is taken out from the V-shaped groove 71.

[0111] Fig.14As shown, when the electrode rod 72 is worn or replaced with an electrode rod 72 of a different diameter, it is necessary to readjust the position of the electrode rod 72 so that the axis of the electrode rod 72 is coaxial with the axis of the rotating sleeve 88. Specifically, a radial adjustment assembly 86 is provided on the rotating sleeve 88, and the radial adjustment assembly 86 includes a radial displacement bracket 864, a radial fixed guide rail 862, a radial motor 861, a radial screw 863 and a radial nut. The radial fixed guide rail 862 and the radial motor 861 are fixed on the cross frame 85, the radial displacement bracket 864 is slidably set on the radial fixed guide rail 862, the radial screw 863 is connected to the output shaft of the radial motor 861, the radial screw 863 is arranged radially along the rotating sleeve 88, the radial nut is sleeved on the radial screw 863, and the radial displacement bracket 864 and the radial nut are connected. The radial motor 861 drives the radial screw 863 to rotate, and the radial screw 863 drives the radial nut and the radial displacement bracket 864 to move back and forth relative to the rotating sleeve 88 in the radial direction of the rotating sleeve 88. The above-mentioned indexing support assembly 7 is fixed on the radial displacement bracket 864. When it is necessary to adjust the position of the electrode rod 72, the V-shaped groove 71 is driven by the radial displacement bracket 864 to move back and forth relative to the rotating sleeve 88 in the radial direction of the rotating sleeve 88, so that the axis of the electrode rod 72 clamped in the V-shaped groove 71 is coaxial with the axis of the rotating sleeve 88, which is convenient for adjustment and has stronger applicability.

[0112] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0113] The above is a detailed introduction to the electrode rod indexable support structure of the electric spark / electrolysis machine provided by the present invention. The principle and implementation method of the present invention are described in detail using specific examples. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An electrode rod indexable support structure for an electric spark / electrolysis machine tool, comprising a frame, characterized in that: An active rotating part, a transfer support assembly and an axial limit assembly are provided on the frame. The transfer support assembly is connected to the active rotating part and can rotate circumferentially around the axis of the active rotating part. The transfer support assembly includes a V-shaped groove and an anti-slip device. An electrode rod is clamped in the V-shaped groove. The electrode rod rests on the two side walls of the V-shaped groove to position the axis of the electrode rod so that the axis of the electrode rod is coaxial with the axis of the active rotating part. The anti-slip device is used to prevent the electrode rod from escaping from the V-shaped groove. The anti-slip device includes an anti-slip magnetic suction member with magnetic force. The anti-slip magnetic suction member is fixed on the V-shaped groove. The electrode rod is provided with a first suction component that cooperates with the anti-slip magnetic suction member to apply force. The first suction component The part can be magnetized, and the anti-demagnetic attraction part applies a magnetic attraction force to the first attracted part so that the electrode rod is close to the two side walls of the V-shaped groove to prevent the electrode rod from being separated from the V-shaped groove. The axial limiting component limits the axial movement of the electrode rod. The axial limiting component includes an axial magnetic attraction part with magnetic force, and the axial magnetic attraction part is fixed on the active rotating part. The axial magnetic attraction part and the active rotating part are combined to form a blocking part with magnetic force. The electrode rod is provided with a second attracted part that cooperates with the axial magnetic attraction part to apply force. The second attracted part can be magnetized, and the blocking part applies a magnetic attraction force to the second attracted part to pull the electrode rod upward in the axial direction, so that the electrode rod and the blocking part are attracted to limit the axial movement of the electrode rod. When the electrode rod processes the workpiece, the active rotating member drives the indexing support assembly to rotate around the electrode rod, so as to control the indexing support assembly not to collide with the workpiece.

2. The electrode rod indexable support structure of the electric spark / electrolysis machine tool according to claim 1, characterized in that: The active rotating member 1 is provided with a radial adjustment component, which includes a radial displacement bracket. The indexing support component is fixed on the radial displacement bracket, and the radial displacement bracket can move relative to the active rotating member 1 in the radial direction of the active rotating member 1.

3. The electrode rod indexable support structure of the electric spark / electrolysis machine tool according to claim 1, characterized in that: The active rotating member is connected to the lifting frame, and the lifting frame can move up and down relative to the frame.

4. An electrode rod indexable support structure for an electric spark / electrolysis machine tool, comprising a frame, characterized in that: The rack is equipped with: Rotating sleeve; A rotary drive assembly, the rotary drive assembly is connected to the rotary sleeve and drives the rotary sleeve to rotate; The transfer support assembly is connected to the rotating sleeve and can rotate circumferentially around the axis of the rotating sleeve. The transfer support assembly includes a V-shaped groove and an anti-slip device. An electrode rod is clamped in the V-shaped groove. The electrode rod leans against the two side walls of the V-shaped groove to position the axis of the electrode rod so that the axis of the electrode rod is coaxial with the axis of the rotating sleeve. The anti-slip device is used to prevent the electrode rod from escaping from the V-shaped groove. The anti-slip device includes an anti-slip magnetic suction member with magnetic force. The anti-slip magnetic suction member is fixed on the V-shaped groove. A first suction member that cooperates with the anti-slip magnetic suction member to apply force is provided on the electrode rod. The first suction member can be magnetized. The anti-slip magnetic suction member applies a magnetic suction force to the first suction member so that the electrode rod is close to the two side walls of the V-shaped groove to prevent the electrode rod from escaping from the V-shaped groove. An axial limit assembly, which is used to limit the axial movement of the electrode rod; A driven rotating member is fixed on the electrode rod; The active rotating part 2 is fixed with a swing arm, the axis of the active rotating part 2 and the axis of the electrode rod have two states of coincidence or non-coincidence, the active rotating part 2 is linked to the driven rotating part through the swing arm, and the axis of the active rotating part 2 and the axis of the electrode rod are not associated and connected, The rotating sleeve is sleeved on the outside of the active rotating part 2, and the rotating sleeve and the active rotating part 2 rotate independently of each other. When the electrode rod processes the workpiece, the rotating sleeve drives the transfer support assembly to rotate around the electrode rod, which is used to control the transfer support assembly not to collide with the workpiece. The axial limiting assembly includes an axial magnetic attraction member with magnetic force, and the axial magnetic attraction member is fixed on the active rotating part 2. The axial magnetic attraction member and the active rotating part 2 are combined to form a blocking member with magnetic force. The electrode rod is provided with a second receiving member that cooperates with the force applied by the axial magnetic attraction member. The second receiving member can be magnetized, and the blocking member applies a magnetic force to the second receiving member to pull the electrode rod upward in the axial direction, so that the electrode rod and the blocking member are attracted to limit the axial movement of the electrode rod.

5. The electrode rod indexable support structure of the electric spark / electrolysis machine tool according to claim 4, characterized in that: The rotating sleeve is provided with a radial adjustment component, which includes a radial displacement bracket. The indexing support component is fixed on the radial displacement bracket, and the radial displacement bracket can move relative to the rotating sleeve in the radial direction of the rotating sleeve.

6. The electrode rod indexable support structure of the electric spark / electrolysis machine tool according to claim 4, characterized in that: The active rotating part 2 and the rotating sleeve are connected to the same lifting frame, and the lifting frame can move up and down relative to the frame. A bearing is sleeved on the outer side of the active rotating part 2, and the rotating sleeve is sleeved on the outer side of the bearing. The inner ring of the bearing is connected to the active rotating part 2, and the outer ring of the bearing is connected to the rotating sleeve.

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