CN-224209233-U - Servo cylinder driven underwater EDM device

CN224209233UCN 224209233 UCN224209233 UCN 224209233UCN-224209233-U

Abstract

The utility model discloses an underwater EDM device driven by a servo cylinder, which comprises a servo electric cylinder actuator used underwater, wherein the bottom of the servo electric cylinder actuator is fixedly connected with a mounting seat, the bottom of the servo electric cylinder actuator penetrates through the mounting seat and is fixedly connected with an electrode device, one side, close to the electrode device, of the mounting seat is symmetrically provided with a cylindrical guide rail, and the top of the mounting seat is provided with an accessory element. The underwater EDM device driven by the servo electric cylinder is matched with the underwater dust collector, the clamping of the control rod guide cylinder fastening bolt can be realized by means of the underwater camera, the post-treatment process is realized, and meanwhile, only the electric control and the EDM power supply are needed, and an expensive hydraulic servo valve, a servo pump station and a hydraulic pipeline are not needed to be equipped. The device has small outline dimension and meets the operation requirement of underwater narrow working space.

Inventors

ZHANG LIANSHUN
FAN BINGZHONG

Assignees

杭州东核能源技术有限公司

Dates

Publication Date: 20260508
Application Date: 20250326

Claims (4)

1. The underwater EDM device driven by the servo cylinder comprises a servo electric cylinder actuator (1) used underwater, and is characterized in that the bottom of the servo electric cylinder actuator (1) is fixedly connected with a mounting seat (5), the bottom of the servo electric cylinder actuator (1) penetrates through the mounting seat (5) and is fixedly connected with an electrode device (2), cylindrical guide rails (3) are symmetrically arranged on one side, close to the electrode device (2), of the mounting seat (5), and accessory elements (4) are arranged on the top of the mounting seat (5); The servo electric cylinder actuator (1) comprises an installation flange (101), a sealing flange (102) is arranged on the surface of the installation flange (101), an actuator end sealing cabin (103) is arranged on the other surface of the sealing flange (102), the actuator end sealing cabin (103) is fixedly connected with the installation flange (101) and the sealing flange (102) through bolts respectively, a servo motor end sealing cabin (104) is fixedly connected with the other end of the actuator end sealing cabin (103), a servo motor (105) is arranged in the servo motor end sealing cabin (104), a precise linear actuator (106) is arranged at the output end of the servo motor (105), a watertight joint (107) is electrically connected with the other end of the servo motor end sealing cabin (104), a pressure gauge (108) and a stop valve (109) are arranged on the surface of the servo motor end sealing cabin (104), and a waterproof cable (110) matched with the watertight joint (107) is arranged on the surface of the watertight joint (107); The servo motor (105) comprises a servo motor host (105-01), a connecting bracket (105-2) is arranged on the surface of the servo motor host (105-01), an encoder (105-3) is arranged on the outer side of the connecting bracket (105-2), a housing (105-4) of a tachogenerator, a rotor (105-5) and an inner housing (105-6) are respectively arranged at the rear end of the servo motor host (105-01), an adapter plate (105-7) is fixedly connected between the rotor (105-5) and the servo motor host (105-01), a first screw (105-8) is fixedly connected with the other end of the rotor (105-5), a switching shaft (105-9) is fixedly connected with the surface of the first screw (105-8), a first coupler (105-10) is fixedly connected with the other end of the switching shaft (105-9), the first coupler (105-10) is matched with the central shaft of the servo motor host (105-01), a second screw (105-11) is arranged on the surface of the encoder (105-3), a second screw (105-11) is fixedly connected with the surface of the second screw (105-11) and the third screw (105-12) is fixedly connected with the housing (105-12), and the third screw (105-12) is fixedly connected with the adapter plate (105-7), a fourth screw (105-13) is arranged on the outer side of the connecting bracket (105-2), and the fourth screw (105-13) is fixedly connected with the adapter plate (105-7).
2. The underwater EDM device driven by the servo cylinder as set forth in claim 1, wherein a first sealing ring (111) is arranged between the actuator end sealing cabin (103) and the servo motor end sealing cabin (104), a guide rod sealing ring (112) is fixedly connected to the surface of the precise linear actuator (106), the guide rod sealing ring (112) is matched with the actuator end sealing cabin (103), and a second sealing ring (113) and a third sealing ring (114) are respectively arranged between the actuator end sealing cabin (103) and the sealing flange (102) and between the sealing flange (102) and the mounting flange (101).
3. The underwater EDM device driven by the servo cylinder as set forth in claim 1, wherein a guide rod end (115) is arranged on one side of the precise linear actuator (106), the guide rod end (115) is matched with the sealing flange (102) through a two-way sealing device, the input end of the precise linear actuator (106) is fixedly connected with a second coupler (116), an adapter flange (117) is sleeved on the surface of the second coupler (116), a bell-shaped cover (118) is arranged on one side of the adapter flange (117), the bell-shaped cover (118) is positioned on the surface of the second coupler (116), a servo motor adapter plate (119) is arranged on the other end of the adapter flange (117), and the servo motor adapter plate (119) is matched with the servo motor (105).
4. The underwater EDM device driven by the servo cylinder as set forth in claim 1, wherein a watertight joint adapter plate (120) is sleeved on the surface of the watertight joint (107), the watertight joint adapter plate (120) is fixedly connected with the servo motor end sealing cabin (104), and a fourth sealing ring (121) is installed between the watertight joint adapter plate (120) and the servo motor end sealing cabin (104).

Description

Servo cylinder driven underwater EDM device Technical Field The utility model relates to the technical field of nuclear power, in particular to an underwater EDM device driven by a servo cylinder. Background The bolt drilling technology is a bolt seizure processing technology which appears in recent years, the method uses portable equipment to take out bolts in a boring mode on a production site, firstly installs a tool to cut the seized bolts, uses the tool to center the bolts to be processed, determines that the spindle of a boring machine coincides with the center of a screw rod, empties residual bolts, processes inner holes of the bolts until the inner diameters are close to the small diameters of threads, and uses a manual tool in a matched mode to roll out threads in the bolts, finally back-taps the threaded holes through screw taps or directly-tap the threaded holes through screw taps. Because the control rod guide cylinder is narrow in installation space and numerous in accessory equipment, the conventional equipment cannot meet the use requirement. Disclosure of utility model In order to solve the technical problems, an underwater EDM device driven by a servo electric cylinder is developed and designed, electric discharge machining is mainly achieved through a servo electric cylinder driving electrode, a clamped bolt is cut, and subsequent operations such as back tapping of a threaded hole or reaming and tapping are performed. The utility model provides a technical scheme that the underwater EDM device driven by a servo cylinder comprises a servo electric cylinder actuator used underwater, wherein the bottom of the servo electric cylinder actuator is fixedly connected with a mounting seat, the bottom of the servo electric cylinder actuator penetrates through the mounting seat and is fixedly connected with an electrode device, one side, close to the electrode device, of the mounting seat is symmetrically provided with a cylindrical guide rail, and the top of the mounting seat is provided with an accessory element; The servo electric cylinder actuator comprises an installation flange, the surface of the installation flange is provided with a sealing flange, the other surface of the sealing flange is provided with an actuator end sealing cabin, the actuator end sealing cabin is fixedly connected with the installation flange and the sealing flange through bolts respectively, the other end of the actuator end sealing cabin is fixedly connected with a servo motor end sealing cabin, the inside of the servo motor end sealing cabin is provided with a servo motor, the output end of the servo motor is provided with a precise linear actuator, the other end of the servo motor end sealing cabin is electrically connected with a watertight joint, the surface of the servo motor end sealing cabin is provided with a pressure gauge and a stop valve respectively, and the surface of the watertight joint is provided with a waterproof cable matched with the watertight joint; The servo motor comprises a servo motor host, a connecting bracket is arranged on the surface of the servo motor host, an encoder is arranged on the outer side of the connecting bracket, a housing, a rotor and an inner housing of a tachogenerator are respectively arranged at the rear end of the servo motor host, an adapter plate is fixedly connected between the rotor and the servo motor host, a first screw is fixedly connected with the other end of the rotor, a transfer shaft is fixedly connected with the surface of the first screw, a first coupling is fixedly connected with the other end of the transfer shaft, the first coupling is matched with a central shaft of the servo motor host, a second screw is arranged on the surface of the encoder, the second screw is fixedly connected with the connecting bracket, a third screw is arranged on the surface of the housing, the third screw is fixedly connected with the adapter plate, a fourth screw is arranged on the outer side of the connecting bracket, and the fourth screw is fixedly connected with the adapter plate. As the preferable mode of the utility model, a first sealing ring is arranged between the actuator end sealing cabin and the servo motor end sealing cabin, a guide rod sealing ring is fixedly connected to the surface of the precise linear actuator, the guide rod sealing ring is matched with the actuator end sealing cabin for use, and a second sealing ring and a third sealing ring are respectively arranged between the actuator end sealing cabin and the sealing flange and between the sealing flange and the mounting flange. As the preferable one of the utility model, one side of the precise linear actuator is provided with a guide rod end, the guide rod end is matched with the sealing flange through a two-way sealing device, the input end of the precise linear actuator is fixedly connected with a second coupler, the surface of the second coupler is sleeved with an adapter flange, one side of the ada