CN110193641B - Lathe bed of electrolytic machining lathe - Google Patents

Lathe bed of electrolytic machining lathe Download PDF

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Publication number
CN110193641B
CN110193641B CN201910293931.8A CN201910293931A CN110193641B CN 110193641 B CN110193641 B CN 110193641B CN 201910293931 A CN201910293931 A CN 201910293931A CN 110193641 B CN110193641 B CN 110193641B
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machine tool
bearing table
air
protective cylinder
workpiece
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CN110193641A (en
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蔡晶
张再余
蔡国庆
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NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
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NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00Auxiliary apparatus or details, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The invention discloses a lathe bed of an electrolytic machining machine tool, which is applied to the field of electrolytic machine tools, and the technical scheme is as follows: the machine tool comprises a bearing table which is rotationally connected in the machine tool and used for placing a workpiece, wherein a protective cylinder is sleeved on the machine tool along the periphery of the bearing table, air holes are formed in the bottom of the machine tool between the bearing table and the protective cylinder, and a circle of annular positive pressure air flow is formed at the periphery of the top of the protective cylinder when the air holes are ventilated; the method has the technical effects that: the protective cylinder can be isolated from the electrolyte mist, so that the possibility of contact between the electrolyte mist and the inner part of the protective cylinder is reduced, and the overall working stability of the machine tool body is improved.

Description

Lathe bed of electrolytic machining lathe
Technical Field
The invention relates to the field of electrolytic machine tools, in particular to a lathe bed of an electrolytic machine tool.
Background
An electrolytic machining machine tool is a special machining method for machining and forming a workpiece by utilizing the principle that metal is electrochemically anode dissolved in electrolyte.
Chinese patent publication No. CN202097473U discloses an electrolytic machining machine tool, including power, electrolyte system device, electrolytic machining system device and control system device, electrolytic machining system device includes: a frame; the C-shaped working platform is arranged on the rack and comprises a lower working platform, an upper plate and a vertical wall; the jig upper die mounting plate can be mounted in the C-shaped working platform in a vertically movable manner; the guide rod assemblies are arranged in a plurality and are arranged on the upper plate and connected to the upper die mounting plate of the jig; the power assembly is arranged on the upper plate and used for driving the guide rod assembly; the slide rail is connected with the upper die mounting plate of the jig, and the upper die mounting plate of the jig slides up and down along the slide rail; a screw rod for driving the upper die mounting plate of the jig; and the counterweight device is arranged on the upper plate.
However, in the electrolytic machining machine tool, the electrolyte mist has floatability during machining, so that the electrolyte mist easily enters the installation lathe bed arranged on the working platform, and the whole working stability of the lathe bed is realized.
Disclosure of Invention
The invention aims to provide a lathe bed of an electrolytic machining machine tool, which has the advantages that: the protective cylinder can be isolated from the electrolyte mist, so that the possibility of contact between the electrolyte mist and the inner part of the protective cylinder is reduced, and the overall working stability of the machine tool body is improved.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a lathe bed of electrolytic machining lathe, includes the plummer that rotates to connect in the lathe and be used for placing the work piece, the lathe is followed plummer periphery cover is equipped with the protection section of thick bamboo, the lathe bottom is equipped with the gas pocket between plummer and protection section of thick bamboo, form round annular malleation air current at protection section of thick bamboo top periphery when the gas pocket ventilates.
Through the technical scheme, when the machine tool works, an operator connects the air hole with an external air source, at the moment, the air flow rushes out from the air hole and forms a circle of annular positive pressure air flow at the outer edge of the top of the protective cylinder, so that the protective cylinder is isolated from electrolyte mist, the possibility of contact between the electrolyte mist and the inner part of the protective cylinder is reduced, and the overall working stability of the machine tool body is improved.
The invention is further provided with: and one end of the bearing table, which is close to the workpiece, is provided with a compressed air extension edge, and the compressed air extension edge extends out of the periphery of the protective cylinder.
Through the technical scheme, the compression extension can play a blocking role on the air flow rushing out of the air hole, so that the possibility that the air flow escapes to the upper part of the bearing table and the distribution concentration of electrolyte mist on the surface of a workpiece is influenced is reduced.
The invention is further provided with: an annular air containing groove is arranged between the air compression extension edge and the outer edge of the protection cylinder, and the top of the protection cylinder is inlaid in the annular air containing groove.
Through above-mentioned technical scheme, annular holds the gas tank and can play a buffering, hold, concentrated effect to the air current that dashes out from the gas pocket to with the impact that the air current was concentrated to the protective barrel bottom, thereby form powerful annular air current, reduce the possibility that electrolyte fog got into in the protective barrel.
The invention is further provided with: and a plurality of air guide grooves extending out of the air compression extension edge are formed in the air compression extension edge.
Through the technical scheme, part of air flow can be discharged from the air guide groove and can flow in the horizontal plane direction, so that the possibility of electrolyte mist diffusion to the protective cylinder is reduced.
The invention is further provided with: the bearing table is provided with a positioning core, and the positioning core is detachably connected to the right center of the bearing table.
Through the technical scheme, when the workpiece with the center hole is machined and the center of the workpiece is required to be determined, an operator can connect the positioning core on the center of the bearing table, and the positioning core is matched with the center hole of the workpiece at the moment, so that the workpiece is rapidly and conveniently positioned, and the positioning core can limit the movement of the workpiece on the bearing table when the workpiece rotates, so that the machining precision is ensured.
The invention is further provided with: and the positioning core is connected with a locking nut in a threaded manner.
Through the technical scheme, after the central hole of the workpiece is matched with the positioning core, an operator can screw the lock nut to enable the lock nut to be abutted against the upper surface of the workpiece, so that the workpiece is clamped on the bearing table rapidly and conveniently, the possibility that the workpiece jumps on the bearing table in the machining process is reduced, and the clamping stability of the workpiece is improved.
The invention is further provided with: the locating core is sleeved with a collision block, and the collision block is located between the lock nut and the workpiece.
Through the technical scheme, when the operator rotates the lock nut, the lock nut is abutted against the abutting block and drives the abutting block to move towards the workpiece until the abutting block clamps the workpiece on the bearing table, and the abutting block is sleeved on the positioning core, so that the abutting block does not rotate, the abrasion generated between the lock nut and the workpiece during rotation is reduced, and the surface quality of the workpiece is guaranteed.
The invention is further provided with: the rotary disc is rotationally connected to the machine tool, an insulating disc is arranged between the rotary disc and the bearing table, an insulating cylinder is arranged on the bearing table in a penetrating mode, a bolt is arranged in the insulating cylinder in a penetrating mode, and the bolt penetrates through the insulating disc and is connected to the rotary disc in a threaded mode.
Through above-mentioned technical scheme, insulating disc gets away insulating between plummer and the rolling disc, and screw thread connection is on the rolling disc after the bolt passes insulating cylinder, consequently the bolt can get up rolling disc and plummer stable connection, also can not influence the insulating nature between the two to guarantee plummer and lathe body and insulate mutually.
The invention is further provided with: and a plurality of T-shaped grooves are formed in the surface of the bearing table.
Through the technical scheme, the T-shaped groove is convenient for an operator to connect other clamps on the bearing table, so that workpieces with various different specifications are positioned and clamped, and the expandability of the bearing table is improved.
In summary, the invention has the following beneficial effects:
1. The air flow rushing out of the air hole can form a circle of annular positive pressure air flow at the outer edge of the top of the protective cylinder, so that the protective cylinder is isolated from the electrolyte mist, the possibility of contact between the electrolyte mist and the inner part of the protective cylinder is reduced, and the overall working stability of the machine tool body is improved;
2. the insulating disc insulates the bearing table from the rotating disc, and the bolt passes through the insulating cylinder and then is connected to the rotating disc through threads, so that the rotating disc and the bearing table can be stably connected, and the insulativity between the rotating disc and the bearing table is not influenced.
Drawings
Fig. 1 is a schematic overall structure of the present embodiment.
Fig. 2 is a schematic structural diagram of the square round tube according to the present embodiment.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is an enlarged view of a portion B in fig. 2.
Fig. 5 is an enlarged view of a portion C in fig. 2.
Fig. 6 is a schematic structural diagram of the sink tank according to the present embodiment.
Fig. 7 is a schematic structural diagram of the bearing platform according to the present embodiment.
Fig. 8 is an enlarged view of a portion D in fig. 7.
Fig. 9 is a schematic diagram of the structure of the ram according to the present embodiment.
Fig. 10 is a schematic view of the structure of the Z-shaped plate according to the present embodiment.
Fig. 11 is a schematic structural view showing a headstock according to this embodiment.
Fig. 12 is an enlarged view of the portion E in fig. 11.
Reference numerals: 1. a machine tool; 11. a carrying platform; 12. a cutter head; 13. a fourth motor; 14. a speed reducer; 142. an electrical slip ring; 1420. a lower drive shaft; 15. sinking grooves; 16. a support sheet; 17. an inclined plane; 18. a liquid outlet; 19. square rotating round tube; 10. a workpiece; 2. a driving mechanism; 21. a first carriage; 22. a second carriage; 23. a vertical frame; 24. a first motor; 241. a first screw rod; 25. a second motor; 251. a second screw rod; 26. a third motor; 261. a third screw rod; 3. a first grating scale; 31. a first inductive read head; 32. a second grating scale; 34. a second inductive read head; 35. a third inductive read head; 36. a third grating scale; 4. a protective cylinder; 41. air holes; 42. air compressing and edge extending; 43. an annular gas containing groove; 44. an air guide groove; 5. positioning the core; 51. a lock nut; 52. a collision block; 53. a rotating disc; 54. an insulating disk; 55. an insulating cylinder; 56. a bolt; 57. a T-shaped groove; 6. a ram; 61. a main shaft; 62. a water slip ring; 621. a liquid inlet; 63. a flow passage; 64. a fixed rod; 65. a fixing ring; 651. a threaded hole; 66. a fixed screw; 67. a conductive slip ring; 68. a connection terminal; 681. a wiring hole; 7. a Z-shaped plate; 71. a waist-shaped groove; 72. a connection hole; 73. adjusting a screw; 74. an annular fixing plate; 8. a spindle box; 80. positioning and extending edges; 81. a shaft passing hole; 82. an insulating sleeve; 821. insulating extended edges; 83. an insulating straight tube; 84. stainless steel screw; 85. a collision part; 86. folding waterproof rubber; 87. a connecting sheet; 88. and the heat dissipation strip holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples: an electrolytic machining machine tool, as shown in fig. 1 and 2, comprises a machine tool 1, a carrying table 11 and a tool bit 12 (as shown in fig. 9), wherein the carrying table 11 and the tool bit 12 are arranged on the machine tool 1 and used for placing a workpiece 10, a driving mechanism 2 used for driving the tool bit 12 to move along the three axes of the first carriage 21, a second carriage 22, a vertical frame 23, a first motor 24, a second motor 25 and a third motor 26 are arranged on the machine tool 1, the first carriage 21 is connected to the machine tool 1 in a sliding manner along the Y axis, the second carriage 22 is connected to the first carriage 21 in a sliding manner along the X axis, the vertical frame 23 is fixedly connected to the second carriage 22, the tool bit 12 is connected to the ram 6 in the vertical frame 23 in a sliding manner along the Z axis, the first motor 24 is arranged on the machine tool 1 and used for driving the first carriage 21 to move through a first screw rod 241 in a threaded connection on the first carriage 21, the second motor 25 is arranged on the first carriage 21 and used for driving the second screw rod 251 to move through a second screw rod 251 in a threaded connection on the second carriage 22, the third motor 26 is arranged on the vertical frame 23 and used for driving the third motor 23 to move along the third screw rod 5326 in a sliding manner along the Z axis (the first screw rod 5326 is not connected to the third shaft and the tool bit 12 in a sliding manner) along the Z axis).
As shown in fig. 2, 3, 4 and 5, a first grating scale 3 is fixedly arranged on the machine tool 1 along the moving direction of a first carriage 21, a first induction reading head 31 extending to the first grating scale 3 is arranged on the first carriage 21, and a gap is formed between the first induction reading head 31 and the first grating scale 3; the first carriage 21 is fixedly provided with a second grating ruler 32 along the moving direction of the second carriage 22, the second carriage 22 is provided with a second induction reading head 34 extending to the second grating ruler 32, and a gap is reserved between the second induction reading head 34 and the second grating ruler 32; the second carriage 22 is connected with a third inductive reading head 35, the ram 6 is connected with a third grating scale 36 along the vertical direction, and a gap is reserved between the third inductive reading head 35 and the third grating scale 36. When the first carriage 21 moves, the first sensor head 31 and the first grating scale 3 can detect the moving distance of the first carriage 21, thereby improving the moving accuracy of the first carriage 21. Similarly, the second inductive read head 34 and the second grating scale 32 can also perform a detection function on the moving distance of the second carriage 22, and the third inductive read head 35 and the third grating scale 36 can perform a detection function on the moving distance of the ram 6.
Referring to fig. 7 and 8, a rotating disc 53 is rotatably connected to a machine tool 1, an insulating disc 54 is disposed between the rotating disc 53 and a carrying table 11, insulating cylinders 55 penetrating through the insulating disc 54 are disposed on the carrying table 11, a plurality of insulating cylinders 55 are arrayed along the circumference of the periphery of the rotating disc 53, bolts 56 are disposed in the insulating cylinders 55 in a penetrating manner, when the rotating disc 53 and the insulating disc 54 need to be connected, an operator passes the bolts 56 through the insulating cylinders 55 and is in threaded connection with the rotating disc 53, at the moment, one end of each bolt 56 far away from the insulating cylinder 55 is abutted against the end of the corresponding insulating cylinder 55 and is not in contact with the carrying table 11, so that the rotating disc 53 and the rotating disc 53 are quickly and fixedly connected, the insulating discs 54 are fixedly arranged on the carrying table 11, and the carrying table 11 can be driven to rotate when the rotating disc 53 rotates.
As shown in fig. 6 and 7, a fourth motor 13 and a speed reducer 14 are arranged at the bottom of the machine tool 1, a sink 15 in which the fourth motor 13 and the speed reducer 14 are arranged is arranged at the bottom of the machine tool 1, the fourth motor 13 is connected with the speed reducer 14, and the speed reducer 14 is connected with the rotating disc 53 through an electric slip ring 142 and a lower driving shaft 1420 on the electric slip ring 142, so that when the fourth motor 13 works, the lower driving shaft 1420 can drive the carrying table 11 to rotate. When the circular workpiece 10 needs to be machined, the driving mechanism 2 moves the tool bit 12 (as shown in fig. 9) to the outer edge of the workpiece 10, then the fourth motor 13 drives the bearing table 11 to rotate, and the tool bit 12 rotates around the workpiece 10, so that the circular workpiece 10 is conveniently and quickly electrolytically cut; when the polygonal workpiece 10 is processed, the tool bit 12 is moved along the line by the driving mechanism 2.
As shown in fig. 6 and 7, three supporting plates 16 are arranged at the bottom of the machine tool 1, the three supporting plates 16 are respectively abutted against one end, away from the bearing table 11, of the electric slip ring 142 connected with the speed reducer 14, and the three supporting plates 16 are abutted against the bottom of the machine tool 1, so that the electric slip ring 142 can be supported, the possibility that a gap is generated between the electric slip ring 142 and the machine tool 1 under the action of self gravity is reduced, the sealing stability between the speed reducer 14 and the bottom of the machine tool 1 is improved, the sealing capability between the speed reducer 14 and the machine tool 1 is improved, and the possibility that electrolyte flows out of the machine tool 1 is reduced.
As shown in fig. 2, the inner bottom of the machine tool 1 is provided with an inclined plane 17 so that electrolyte can flow downwards along the inclined plane 17, the machine tool 1 is provided with a liquid outlet 18 at the lowest end of the inclined plane 17, the electrolyte can be discharged out of the machine tool 1 through the liquid outlet 18 when flowing to the lowest position of the inclined plane 17, and the machine tool 1 is provided with a square rotary round tube 19 at the liquid outlet 18, so that the electrolyte can be conveniently and rapidly discharged along the square opening, and the round opening is convenient for an operator to connect the electrolyte with an external pipeline, thereby improving the connection universality of the electrolyte.
Referring to fig. 7, a protection cylinder 4 is sleeved on the machine tool 1 along the periphery of a bearing table 11, a compression extension 42 is arranged at one end of the bearing table 11 close to a workpiece 10, the compression extension 42 extends out of the periphery of the top of the protection cylinder 4, the bottom of the protection cylinder 4 is fixedly connected to the machine tool 1, an air hole 41 is formed in the bottom of the machine tool 1 between the bearing table 11 and the protection cylinder 4, the air hole 41 is connected with an external air source (not shown in the figure), and when air flows out of the air hole 41, a ring-shaped positive pressure air flow is formed between the periphery of the top of the protection cylinder 4 and the compression extension 42, so that the protection cylinder 4 is isolated from electrolyte mist, the possibility that the electrolyte mist contacts with internal components of the protection cylinder 4 is reduced, and the overall working stability of a machine tool 1 body is improved.
As shown in fig. 7, an annular air accommodating groove 43 is arranged between the compression air extension 42 and the outer edge of the protective cylinder 4, the top of the protective cylinder 4 is embedded in the annular air accommodating groove 43, a plurality of air guide grooves 44 extending out of the compression air extension 42 are arranged on the compression air extension 42, the air guide grooves 44 are communicated with the annular air accommodating groove 43, the air guide grooves 44 are distributed along the circumferential array of the compression air extension 42, and when air flow is discharged from the air hole 41, the air flow can impact the top of the protective cylinder 4 and form annular positive pressure air flow. The annular air accommodating groove 43 can play a role in buffering, accommodating and concentrating the air flow rushing out of the air hole 41, so that the concentrated impact of the air flow is towards the periphery of the air compression extension 42, a powerful annular air flow is formed, and the possibility that electrolyte mist enters the protective cylinder 4 is reduced; and a part of the air flow can be discharged from the air guide groove 44, and the part of the air flow can flow in the horizontal plane direction, so that the possibility of the electrolyte mist diffusing to the protective cylinder 4 is reduced.
Referring to fig. 7, in order to clamp the workpiece 10 on the carrying table 11, the center of the carrying table 11 is provided with the positioning core 5, the positioning core 5 is screwed on the carrying table 11, and an operator can flexibly replace the positioning cores 5 with different outer diameters according to the size of the center hole of the workpiece 10. One end of the positioning core 5 far away from the bearing table 11 is in threaded connection with a locking nut 51, and an abutting block 52 is sleeved on the positioning core 5. When installing the work piece 10, the operator first establishes the locating core 5 threaded connection on plummer 11, then establishes work piece 10 cover on locating core 5, establishes conflict piece 52 cover on locating core 5 and place in work piece 10 upper end this moment, last with lock nut 51 threaded connection on locating core 5 and screw up to with conflict piece 52 support tightly in work piece 10 upper end, quick convenient realization clamp operation to work piece 10 to reduce the possibility that produces the removal when work piece 10 rotates.
As shown in fig. 1, four T-shaped grooves 57 are formed in the surface of the carrying table 11, the four T-shaped grooves 57 are distributed at equal intervals along the periphery of the carrying table 11, and the T-shaped grooves 57 can facilitate an operator to connect other clamps to the carrying table 11, so that workpieces 10 with various different specifications are positioned and clamped, and the expandability of the carrying table 11 is improved.
As shown in fig. 9, a spindle 61 is rotatably connected in the ram 6 along a vertical direction, a tool bit 12 is connected at one end of the spindle 61 facing the bearing table 11, a conductive slip ring 67 is arranged at one end of the ram 6 far away from the tool bit 12, the conductive slip ring 67 is composed of a stator and a rotor, and one end of the spindle 61 far away from the tool bit 12 is fixedly connected on the stator of the conductive slip ring 67, so that the rotation stability of the spindle 61 during working is ensured. The main shaft 61 is further provided with a water slip ring 62 at one end far away from the tool bit 12, the inner layer of the water slip ring 62 is a rotor, the outer layer of the water slip ring 62 is a stator, the position of the water slip ring 62 relative to the ram 6 is fixed, the main shaft 61 is connected to the rotor of the water slip ring 62, the stator of the water slip ring 62 is provided with a liquid inlet 621, the main shaft 61 and the tool bit 12 are provided with flow channels 63 communicated with the liquid inlet 621, electrolyte enters the flow channels 63 from the liquid inlet 621, when the main shaft 61 rotates at a high speed, the electrolyte flows out of the flow channels 63 at a high speed and impacts on the workpiece 10, and the electrolyte is dispersed into electrolyte mist, so that the machine tool 1 is convenient for carrying out electrolytic machining on the workpiece 10; and because the main shaft 61 is hollow, electrolyte is introduced into the middle of the main shaft 61, so that the main shaft 61 can be cooled; impact on the work piece 10 after flowing out of the lower end of the hollow tool bit 12, and also play a role in taking away waste residues. During machining, tool tip 12 is energized to a negative power source and work piece 10 is energized to a positive power source.
As shown in fig. 9 and 10, a plurality of waist-shaped grooves 71 are formed in one end, close to the ram 6, of the Z-shaped plate 7,Z, on the side wall of the ram 6, a connecting hole 72 corresponding to the waist-shaped hole is formed in the ram 6, an adjusting screw 73 in threaded connection with the connecting hole 72 is arranged in the waist-shaped hole in a penetrating mode, an operator can adjust the position of the Z-shaped plate 7 through the waist-shaped hole, and then the Z-shaped plate 7 is quickly fixed on the ram 6 through the adjusting screw 73. The one end that ram 6 was kept away from to Z shaped plate 7 is connected with dead lever 64 through the screw can dismantle, and dead lever 64 is kept away from the one end of Z shaped plate 7 and has been set firmly solid fixed ring 65, and fixed ring 65 interference fit is at the stator outer fringe of water slide ring 62 to swift fixed water slide ring 62's position reduces the possibility that water slide ring 62 moved. The fixing ring 65 is provided with a plurality of threaded holes 651 extending into the water slip ring 62 along the periphery, the threaded holes 651 are internally connected with fixing screws 66 (not shown in the figure) in a threaded manner, and the fixing screws 66 can connect the fixing ring 65 with the water slip ring 62, so that the possibility of the water slip ring 62 jumping and relative displacement between the water slip ring and the fixing ring 65 during working is reduced.
As shown in fig. 10, an annular fixing plate 74 is fixedly connected to the Z-shaped plate 7, the outer edge of the annular fixing plate 74 is flush with the outer edge of the conductive slip ring 67, and when the fixing ring 65 is in interference fit with the outer edge of the water slip ring 62, the annular fixing plate 74 abuts against one end of the conductive slip ring 67, which is far away from the ram 6, and at this time, the annular fixing plate 74 has a tensioning force on the Z-shaped plate 7, so that the possibility of bending the Z-shaped plate 7 can be reduced, and the supporting stability of the fixing rod 64 and the fixing ring 65 can be improved.
As shown in fig. 10, the conductive slip ring 67 is provided with a plurality of connection terminals 68, the connection terminals 68 are uniformly distributed at one end of the conductive slip ring 67 far away from the ram 6, each connection terminal 68 is provided with three connection holes 681, and an operator can respectively pass the cables through the connection holes 681 of each connection terminal 68, so that the cables are uniformly distributed, and the possibility that the cables are wound and excessively densely distributed on the conductive slip ring 67 is reduced.
As shown in fig. 11 and 12, in order to insulate the spindle 61 from the ram 6 to avoid machining accidents caused by electrification of the ram 6, both ends of the spindle 61 are rotatably connected with the spindle box 8 through bearings, two ends of the ram 6 in the vertical direction are provided with shaft holes 81 through which the spindle box 8 passes, an insulating sleeve 82 is arranged in the shaft holes 81, and the spindle box 8 is arranged in the insulating sleeve 82 in a penetrating manner, and at this time, the spindle 61 and the ram 6 are insulated by the insulating sleeve 82. The end of the insulating sleeve 82 is provided with an insulating extension 821, the end of the spindle box 8 is provided with a positioning extension 80, the positioning extension 80 is abutted against the insulating extension 821, the positioning extension 80 is provided with an insulating straight pipe 83 penetrating through the positioning extension 80, one end of the insulating straight pipe 83, far away from the insulating sleeve 82, extends out of the positioning extension 80 and is provided with an abutting portion 85, a stainless steel screw 84 in threaded connection with the ram 6 is arranged in the insulating straight pipe 83 in a penetrating manner, an operator can screw the stainless steel screw 84 on the ram 6, at the moment, the end of the stainless steel screw 84 abuts against the abutting portion 85, the rod is connected with the ram 6, the spindle box 8 can be screwed on the ram 6 quickly and conveniently, the abutting portion 85 abuts against the positioning extension 80 towards one side of the positioning extension 80, accordingly the positioning extension 80 can abut against the insulating sleeve 82, gaps between the positioning extension 80 and the insulating sleeve 82 are reduced, and waterproof sealing performance between the spindle box 8 and the insulating sleeve 82 is improved.
As shown in fig. 11 and 12, a folding waterproof rubber 86 is disposed between the end of the ram 6 facing the cutter head 12 and the bottom of the second carriage 22, two ends of the folding waterproof rubber 86 are fixedly provided with connecting pieces 87, and the two connecting pieces 87 are detachably connected to the second carriage 22 and the ram 6 through screws, so that an operator can replace the folding waterproof rubber 86 at any time, the gap between the ram 6 and the second carriage 22 can be reduced by the folding waterproof rubber 86, the possibility that electrolyte mist stretches into the ram 6 is reduced, the insulation of the ram 6 is maintained, and potential safety hazards are reduced.
As shown in fig. 9, the ram 6 is provided with a plurality of heat dissipating strip holes 88 to increase the contact area between the spindle 61 and the outside air, thereby increasing the heat dissipating speed of the spindle 61, so as to rapidly reduce the temperature of the spindle 61, reduce the possibility of influencing the atomization degree of the electrolyte mist due to overheating of the spindle 61, and increase the working stability of the spindle 61.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims (5)

1. A bed of an electrolytic machining machine, characterized in that: the machine tool comprises a bearing table (11) which is rotationally connected in a machine tool (1) and is used for placing a workpiece (10), wherein a protective cylinder (4) is sleeved on the machine tool (1) along the periphery of the bearing table (11), an air hole (41) is formed in the bottom of the machine tool (1) between the bearing table (11) and the protective cylinder (4), and a circle of annular positive pressure air flow is formed at the periphery of the top of the protective cylinder (4) when the air hole (41) is ventilated;
One end of the bearing table (11) close to the workpiece (10) is provided with a compression air extension edge (42), and the compression air extension edge (42) extends out of the periphery of the protective cylinder (4);
an annular air containing groove (43) is arranged between the air compression extension (42) and the outer edge of the protective cylinder (4), and the top of the protective cylinder (4) is inlaid in the annular air containing groove (43);
the air guide grooves (44) extending out of the air compression extension edge (42) are formed in the air compression extension edge (42);
The rotary disc (53) is rotationally connected to the machine tool (1), an insulating disc (54) is arranged between the rotary disc (53) and the bearing table (11), an insulating cylinder (55) is arranged on the bearing table (11) in a penetrating mode, a bolt (56) is arranged in the insulating cylinder (55) in a penetrating mode, and the bolt (56) penetrates through the insulating disc (54) and then is connected to the rotary disc (53) in a threaded mode.
2. The bed of an electrolytic machining machine tool according to claim 1, wherein: the bearing table (11) is provided with a positioning core (5), and the positioning core (5) is detachably connected to the right center of the bearing table (11).
3. The bed of an electrolytic machining machine according to claim 2, wherein: and the positioning core (5) is connected with a locking nut (51) in a threaded manner.
4. A bed of an electrolytic machining machine according to claim 3, characterized in that: the locating core (5) is sleeved with a supporting block (52), and the supporting block (52) is located between the locking nut (51) and the workpiece (10).
5. The bed of an electrolytic machining machine tool according to claim 1, wherein: a plurality of T-shaped grooves (57) are formed in the surface of the bearing table (11).
CN201910293931.8A 2019-04-12 2019-04-12 Lathe bed of electrolytic machining lathe Active CN110193641B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910293931.8A CN110193641B (en) 2019-04-12 2019-04-12 Lathe bed of electrolytic machining lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910293931.8A CN110193641B (en) 2019-04-12 2019-04-12 Lathe bed of electrolytic machining lathe

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