CN217476304U

CN217476304U - Numerical control small electrode double-end-face processing machine tool

Info

Publication number: CN217476304U
Application number: CN202221557971.2U
Authority: CN
Inventors: 王任平; 张兵; 祝国胜
Original assignee: Shanshan Longsheng Carbon Manufacturing Co ltd
Current assignee: Shanshan Longsheng Carbon Manufacturing Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-09-23
Anticipated expiration: 2032-06-21

Abstract

The utility model relates to an industry silicon electric furnace eye burns and wears ware small electrode processing technology field, a numerical control small electrode bi-polar face machine tool, it includes the lathe bed, the auxiliary stay frame, left side gyration clamping device, right gyration clamping device, left side numerical control slip table and right numerical control slip table, the lathe bed middle part is fixed with has V form groove and can place the auxiliary stay frame of treating the processing blank, install the left gyration clamping device that can remove about on the lathe bed of auxiliary stay frame left side, install the right gyration clamping device that can remove on the lathe bed of the auxiliary stay frame right side. The utility model has the advantages of reasonable and compact structure, convenient to use, it can be with treating all manufacturing procedure that the processing blank processing becomes little electrode, through the both ends simultaneous processing of treating the processing blank, the little electrode of acquisition is from taking public female joint, through the degree of automation that promotes the processing equipment, can effectively reduce the recruitment number, is showing reduction in production cost, improves production efficiency, has safety, laborsaving, simple and convenient, efficient characteristics.

Description

Numerical control small electrode double-end-face processing machine tool

Technical Field

The utility model relates to the technical field of small electrode processing of industrial silicon electric furnace eye burnthrough devices, in particular to a numerical control small electrode double-end-face processing machine tool.

Background

The industrial silicon production in China adopts quartz ore (main component silicon dioxide) as a raw material, adopts a carbonaceous material as a reducing agent and adopts the extraction principle of SiO2+2C → Si +2 CO. The reducing agent mainly comprises charcoal, petroleum coke and bituminous coal at the early stage. At present, carbon electrodes (carbon electrodes and graphite electrodes) are mostly adopted as reduction and conductive materials in industrial silicon furnaces in China. In the industrial silicon smelting process, after a certain amount of silicon liquid is accumulated in the electric furnace, in order to prevent the influence on the furnace condition, a furnace eye is opened in time to discharge silicon. When silicon is produced, a graphite rod burnthrough device is needed to burn out a furnace eye, silicon liquid at the bottom of an electric furnace is far away from the furnace eye, the furnace eye is easily blocked in the outflow process, in order to smoothly produce the silicon, the graphite rod burnthrough device must burn out the silicon while producing the silicon, a graphite rod used by the existing graphite rod burnthrough device is a small electrode, two electrode rods with threaded holes are formed by connecting cylindrical connector bodies with external threads, and during production, the blank of the electrode rod needs three common machine tools to be processed, the outer circle of the electrode is turned, the inner hole of the electrode is processed, the internal thread is processed, the blank needs to be clamped for many times, and the blank of the connector bodies needs the processes of turning the outer circle, processing the external thread, cutting and the like. In the operation, the process route for processing the electrode rod is as follows: 1. manually putting the 120 electrode bar blank in the middle section on a machine tool, clamping the 120 electrode bar blank by using a chuck, jacking one end of the 120 electrode bar blank by using a tailstock center, then starting to process the outer circle diameter of the electrode to the middle section of 100MM, and after the processing is finished, loosening the chuck and lifting the electrode off the machine tool; 2. manually placing the 100MM electrode in the finished processing section on a second machine tool, clamping one end of the second machine tool by using a chuck, supporting one end of the second machine tool by using a central bracket, processing internal threads after the size of the inner hole is reached, and loosening the chuck; 3. and turning the electrode around to process the other end. The process route for processing the joint body is as follows: 1. manually placing the 120 electrode blank on a machine tool, clamping one end of the electrode blank by using a chuck, jacking one end of the electrode blank by using a tailstock center, starting to process the excircle to a specified size, and after the machining is finished, loosening the chuck to lift the electrode off the machine tool; 2. and (3) putting the joint body with the excircle machined to the specified size into a second machine tool to clamp by using a chuck, starting to machine the external thread to the specified size, measuring the length by using a steel plate ruler, and cutting by using a turning tool. Because the processing procedures are more, the efficiency is low, the quality can not be ensured, a plurality of persons are required to lift and place the blank to be processed and clamp the blank for a plurality of times in a coordinated manner, the labor cost is high, the labor intensity is high, the manufacturing is time-consuming and labor-consuming, the consumption of auxiliary labor is more, the working efficiency is lower, and potential safety hazards exist.

Disclosure of Invention

An object of the utility model is to provide a numerical control microelectrode double-end-face machining machine tool has overcome above-mentioned prior art not enough, and it can effectively be solved current industrial silicon electric furnace eye and burn the manufacturing procedure of ware microelectrode more, needs many people interoperation, clamping many times, makes waste time and energy, work efficiency is lower, has the problem of potential safety hazard moreover.

The purpose of the utility model is realized like this: a numerical control small electrode double-end-face processing machine tool, which comprises a machine tool body, an auxiliary supporting frame and a left rotary clamping device, the left rotary clamping device capable of moving left and right is installed on the lathe bed on the left side of the left rotary clamping device, a left tool bit seat frame is arranged on the left tool bit seat frame, a left tool bit capable of processing the left part of the blank to be processed is installed on the lathe bed on the right side of the auxiliary supporting frame, a right rotary clamping device capable of moving left and right is installed on the lathe bed on the right side of the right rotary clamping device, a right tool bit seat frame is arranged on the right numerical control sliding table, and a right tool bit capable of processing the right part of the blank to be processed is installed on the right lathe bed on the right side of the right rotary clamping device.

Further, a left numerical control sliding table and a right numerical control sliding table are arranged on the lathe body through machine tool guide rails, a left transverse shaft servo motor capable of controlling the left numerical control sliding table to move left and right is arranged at the left end of the lathe body, a left longitudinal shaft servo motor capable of controlling the left tool apron frame to move front and back is arranged at the rear end of the left numerical control sliding table, the left tool bit comprises a left outer circle tool bit, a left inner cone tool bit and a left comb milling tool bit, the left outer circle tool bit, the left inner cone tool bit and the left comb milling tool bit are respectively arranged on the left tool apron frame from back to front through corresponding tool apron rotating shafts, cutter shaft driving motors are respectively and fixedly arranged at the upper ends of the left tool apron frame corresponding to the positions of the left outer circle tool bit, the left inner cone tool bit and the left comb milling tool bit, output shafts of each cutter shaft driving motor are respectively connected with the corresponding tool apron rotating shafts of the left outer circle tool bit, the left inner cone tool bit and the left comb milling tool bit through transmission belts, a right transverse shaft servo motor capable of controlling the right numerical control sliding table to move left and right is arranged at the right end of the lathe body, the right numerical control sliding table rear end is equipped with the right axis of ordinates servo motor that can control right blade holder frame back-and-forth movement, right tool bit includes right excircle tool bit, right outer cone tool bit, right side comb milling cutter head is installed on right blade holder frame through corresponding blade holder pivot respectively by back to the front, correspond right excircle tool bit, right outer cone tool bit, the right blade holder frame upper end of right side comb milling cutter head position is fixed mounting respectively has arbor driving motor, each arbor driving motor's output shaft is connected through drive belt and corresponding right excircle tool bit, right outer cone tool bit, the blade holder pivot of right side comb milling cutter head respectively.

Furthermore, a left outer circular lathe tool is fixedly mounted on the left outer circular cutter head, a left inner circular boring tool and a left end face tool are fixedly mounted on the left inner circular cutter head, a left comb thread tool is fixedly mounted on the left comb milling cutter head, a right outer circular lathe tool is fixedly mounted on the right outer circular cutter head, a right outer circular boring tool and a right end face tool are fixedly mounted on the right outer circular cutter head, and a right comb thread tool is fixedly mounted on the right comb milling cutter head.

Furthermore, the left rotary clamping device comprises a left clamping seat frame, a clamping hydraulic cylinder and a clamping chuck, the left clamping seat frame is installed on the machine tool body through a machine tool guide rail, the driving hydraulic cylinder is arranged at the rear part of the left clamping seat frame, the left clamping seat frame can move left and right relative to the machine tool body through a ball screw mechanism installed at the rear side of the machine tool body, a rotary device with a rotary motor is arranged in the middle of the rear side of the machine tool body, the clamping chuck capable of automatically clamping and loosening a blank to be processed is arranged on the left clamping seat frame, the rotary device is connected with the clamping chuck of the left clamping seat frame through gear transmission and can drive the blank to be processed to rotate, the clamping hydraulic cylinder is fixedly installed at the upper end of the left clamping seat frame, a piston rod of the clamping hydraulic cylinder is connected with a locking device of the clamping chuck and can clamp the blank to be processed, and the right rotary clamping device is identical in structure with the left rotary clamping device.

Furthermore, an electrical cabinet is arranged on the left part of the rear of the bed body, a hydraulic station is arranged on the right part of the rear of the bed body, a left operating table is arranged on the left part of the front of the bed body, and a right operating table is arranged on the right part of the front of the bed body.

Further, a blank bracket for placing a plurality of blanks to be processed is arranged in front of the lathe bed, a blank clamping manipulator capable of transferring the blanks to be processed on the blank bracket to the auxiliary support frame is arranged behind or on the side of the blank bracket, the blank clamping manipulator comprises a rotating arm base, a lower arm base driver, a lower rotating arm, a lower arm driver, an upper arm base driver, a middle rotating arm driver, an upper rotating arm, an upper arm driver, a rotating claw base, a claw base rotating driver, a left claw driving cylinder, a right claw and a right claw driving cylinder, the lower part of the rotating arm base is fixedly arranged on a rack in front of the lathe bed, the lower arm base with the lower arm base driver is arranged on the upper part of the base and can rotate according to the required angle, the lower rotating arm with the lower rotating arm driver is arranged on the lower arm base and can rotate according to the required angle, the upper rotating arm seat with an upper arm seat driver is arranged at the upper end of a lower rotating arm and can rotate according to a required angle, a middle rotating arm with a middle rotating arm driver is arranged at the left end of the upper rotating arm seat and can rotate according to a required angle, an upper rotating arm with an upper rotating arm driver is arranged at the left end of the middle rotating arm and can rotate according to a required angle, a rotating claw seat with a claw seat rotating driver is arranged at the lower end of an upper rotating arm and can rotate according to a required angle, a left claw with a left claw driving cylinder is arranged at the left part of the rotating claw seat, a right claw with a right claw driving cylinder is arranged at the right part of the rotating claw seat, the left claw comprises a front clamping finger and a rear clamping finger, the lower part of the front clamping finger and the lower part of the front clamping finger can clamp a blank to be processed, and the structure of the right claw is the same as that of the left claw.

The utility model has the advantages of reasonable and compact structure, convenient to use, it can be with treating all manufacturing procedure that the processing blank processing becomes little electrode, through the both ends simultaneous processing of treating the processing blank, the little electrode of acquisition is from taking public female joint, through the degree of automation that promotes the processing equipment, can effectively reduce the recruitment number, is showing reduction in production cost, improves production efficiency, has safety, laborsaving, simple and convenient, efficient characteristics.

Drawings

The specific structure of the utility model is given by the following figures and embodiments:

FIG. 1 is a schematic view of the preferred embodiment of the present invention in a partially sectional, elevational view;

FIG. 2 is a schematic top view of the preferred embodiment of the present invention;

fig. 3 is a left enlarged structural view of the left numerical control slide table 5 in fig. 1;

fig. 4 is a left enlarged structural view of the left rotary clamping device 3 in fig. 1;

fig. 5 is a schematic view of the left and right cutting heads of fig. 1.

Legend: 1 is a lathe bed, 2 is an auxiliary support frame, 3 is a left rotary clamping device, 4 is a right rotary clamping device, 5 is a left numerical control sliding table, 6 is a right numerical control sliding table, 7 is a blank to be processed, 8 is a left tool apron frame, 9 is a left transverse-axis servo motor, 10 is a left longitudinal-axis servo motor, 11 is a left outer-circle tool bit, 12 is a left inner-cone tool bit, 13 is a left comb milling tool bit, 14 is a tool-axis driving motor, 15 is a right transverse-axis servo motor, 16 is a right longitudinal-axis servo motor, 17 is a right outer-circle tool bit, 18 is a right outer-cone tool bit, 19 is a right comb milling tool bit, 20 is a left outer-circle turning tool, 21 is a left inner-circle boring tool, 22 is a left end face tool, 23 is a left comb threading tool, 24 is a right outer-circle turning tool, 25 is a right outer-circle boring tool, 26 is a right end face tool, 27 is a right comb threading tool, 28 is a clamping liquid cylinder, 29 is a clamping liquid chuck, 30 is a rotary motor, 31 is a rotary device, 32 is an electrical cabinet, reference numeral 33 denotes a hydraulic station, 34 denotes a left console, 35 denotes a right console, 36 denotes a boom base, 37 denotes a lower boom base, 38 denotes a lower boom base driver, 39 denotes a lower boom, 40 denotes a lower boom driver, 41 denotes an upper boom base, 42 denotes an upper boom base driver, 43 denotes a middle boom, 44 denotes a middle boom driver, 45 denotes an upper boom, 46 denotes an upper boom driver, 47 denotes a swing jaw base, 48 denotes a jaw base rotary driver, 49 denotes a left jaw, 50 denotes a left jaw cylinder, 51 denotes a right jaw cylinder, and 52 denotes a right jaw cylinder.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

Example (b): as shown in fig. 1-2, the numerical control small electrode double end face processing machine tool comprises a machine tool body 1, an auxiliary support frame 2, a left rotary clamping device 3, a right rotary clamping device 4, a left numerical control sliding table 5 and a right numerical control sliding table 6, wherein the middle part of the machine tool body 1 is fixedly provided with the auxiliary support frame 2 which is provided with a V-shaped groove and can be used for placing a blank 7 to be processed, the left rotary clamping device 3 which can move left and right is installed on the machine tool body 1 on the left side of the auxiliary support frame 2, the right rotary clamping device 4 which can move left and right is installed on the machine tool body 1 on the right side of the auxiliary support frame 2, the left numerical control sliding table 5 which can move left and right is installed on the machine tool body 1 on the left side of the left rotary clamping device 3, a left tool apron frame 8 is installed on the left tool apron frame 8, the right numerical control sliding table 6 which can move left and right is installed on the machine tool body 1 on the right side of the right rotary clamping device 4, and a right tool apron frame is arranged on the right numerical control sliding table 6, and a right tool bit capable of machining the right part of the blank 7 to be machined is arranged on the right tool apron frame. Through the utility model discloses an equipment can accomplish and will wait to process all manufacturing procedure that blank 7 processing becomes the small electrode, and through the both ends simultaneous processing of treating processing blank 7, the small electrode of acquisition is from taking public female joint, and through the degree of automation that promotes the processing equipment, can effectively reduce the recruitment number, is showing reduction in production cost, improvement production efficiency, produces higher economic benefits.

As shown in fig. 1-2, a left numerical control sliding table 5 and a right numerical control sliding table 6 are mounted on a machine tool body 1 through machine tool guide rails, the left end of the machine tool body 1 is provided with a left transverse axis servo motor 9 capable of controlling the left and right movement of the left numerical control sliding table 5, the rear end of the left numerical control sliding table 5 is provided with a left longitudinal axis servo motor 10 capable of controlling the front and back movement of a left tool apron frame 8, the left tool apron comprises a left outer circle tool head 11, a left inner cone tool head 12 and a left comb milling tool head 13, the left outer circle tool head 11, the left inner cone tool head 12 and the left comb milling tool head 13 are mounted on the left tool apron frame 8 from back to front through corresponding tool apron rotating shafts respectively, the upper ends of the left tool apron frame 8 corresponding to the positions of the left outer circle tool head 11, the left inner cone tool head 12 and the left comb milling tool head 13 are respectively and fixedly provided with cutter shaft driving motors 14, output shafts of the cutter shaft driving motors 14 are respectively connected with the tool apron rotating shafts of the corresponding left outer circle tool head 11, left inner cone tool head 12 and left comb milling tool head 13 through transmission belts, the right end of the lathe bed 1 is provided with a right transverse shaft servo motor 15 capable of controlling the right numerical control sliding table 6 to move left and right, the rear end of the right numerical control sliding table 6 is provided with a right longitudinal shaft servo motor 16 capable of controlling the right tool apron frame to move front and back, the right tool bit comprises a right outer circle tool bit 17, a right outer cone tool bit 18 and a right comb milling tool bit 19, the right outer circle tool bit 17, the right outer cone tool bit 18 and the right comb milling tool bit 19 are respectively installed on the right tool apron frame through corresponding tool apron rotating shafts from back to front, the upper ends of the right tool apron frame corresponding to the positions of the right outer circle tool bit 17, the right outer cone tool bit 18 and the right comb milling tool bit 19 are respectively and fixedly provided with a cutter shaft driving motor 14, and the output shaft of each cutter shaft driving motor 14 is respectively connected with the tool apron rotating shafts of the corresponding right outer circle tool bit 17, the right outer cone tool bit 18 and the right comb milling tool bit 19 through a transmission belt.

As shown in fig. 1-2, a left outer circle lathe tool 20 is fixedly mounted on the left outer circle tool bit 11, a left inner cone boring tool 21 and a left end face tool 22 are fixedly mounted on the left inner cone tool bit 12, a left comb thread tool 23 is fixedly mounted on the left comb milling tool bit 13, a right outer circle lathe tool 24 is fixedly mounted on the right outer circle tool bit 17, a right outer cone boring tool 25 and a right end face tool 26 are fixedly mounted on the right outer cone tool bit 18, and a right comb thread tool 27 is fixedly mounted on the right comb milling tool bit 19.

As shown in fig. 1-2, the left swivel clamp assembly 3 includes a left clamp mount, the clamping device comprises a clamping hydraulic cylinder 28 and a clamping chuck 29, a left clamping seat frame is installed on a machine tool body 1 through a machine tool guide rail, a driving hydraulic cylinder is arranged at the rear part of the left clamping seat frame, the left clamping seat frame can move left and right relative to the machine tool body 1 through a ball screw mechanism installed at the rear side of the machine tool body 1, a rotating device 31 with a rotating motor 30 is arranged in the middle of the rear side of the machine tool body 1, the clamping chuck 29 capable of automatically clamping and loosening a blank 7 to be machined is arranged on the left clamping seat frame, the rotating device 31 is connected with the clamping chuck 29 of the left clamping seat frame through gear transmission and can drive the blank 7 to be machined to rotate, the clamping hydraulic cylinder 28 is fixedly installed at the upper end of the left clamping seat frame, a piston rod of the clamping hydraulic cylinder 28 is connected with a locking device of the clamping chuck 29 and can clamp the blank 7 to be machined, and the right rotating clamping device 4 is identical in structure with the left rotating clamping device 3.

As shown in fig. 1-2, an electrical cabinet 32 is arranged on the left part of the rear of the bed body 1, a hydraulic station 33 is arranged on the right part of the rear of the bed body 1, a left operating table 34 is arranged on the left part of the front of the bed body 1, and a right operating table 35 is arranged on the right part of the front of the bed body 1.

As shown in fig. 1-2, a blank bracket for placing a plurality of blanks to be processed 7 is arranged in front of the bed 1, a blank clamping manipulator for transferring the blanks to be processed 7 on the blank bracket to the auxiliary support frame 2 is arranged behind or on the side of the blank bracket, the blank clamping manipulator comprises a rotating arm base 36, a lower arm base 37, a lower arm base driver 38, a lower rotating arm 39, a lower arm driver 40, an upper arm base 41, an upper arm base driver 42, a middle rotating arm 43, a middle arm driver 44, an upper rotating arm 45, an upper arm driver 46, a rotating claw base 47, a claw base rotating driver 48, a left claw 49, a left claw driving cylinder 50, a right claw 51 and a right claw driving cylinder 52, the lower part of the rotating arm base 36 is fixedly arranged on the frame in front of the bed 1, the lower arm base 37 with the lower arm base driver 38 is arranged on the upper part of the rotating arm base 36 and can rotate according to a required angle, the lower rotating arm 39 with the lower arm driver 40 is arranged on the lower arm base 37 and can rotate according to a required angle An upper swing arm base 41 with an upper swing arm base driver 42 is mounted on the upper end of a lower swing arm 39 and can rotate according to a required angle, a middle swing arm 43 with a middle swing arm driver 44 is mounted on the left end of the upper swing arm base 41 and can rotate according to a required angle, an upper swing arm 45 with an upper swing arm driver 46 is mounted on the left end of the middle swing arm 43 and can rotate according to a required angle, a swing claw base 47 with a claw base rotating driver 48 is mounted on the lower end of the upper swing arm 45 and can rotate according to a required angle, a left claw 49 with a left claw driving cylinder 50 is mounted on the left part of the swing claw base 47, a right claw 51 with a right claw driving cylinder 52 is mounted on the right part of the swing claw base 47, the left claw 49 comprises a front clamping finger and a rear clamping finger with the lower parts capable of clamping a blank 7 to be processed, and the right claw 51 and the left claw 49 are identical in structure. The manipulator is got through pressing from both sides at 1 the place ahead installation blank of lathe bed, can further improve the automation level of equipment material loading to raise the efficiency, reduce the human cost. During actual operation, firstly, a blank to be machined 7 is clamped to an auxiliary supporting frame 2 through a blank clamping mechanical arm, then the blank clamping mechanical arm loosens the blank to be machined 7, the left rotary clamping device 3 and the right rotary clamping device 4 on the two sides are controlled to move to clamping positions, the length direction of one end is leaned against the positions, the blank to be machined 7 is clamped by the clamping chuck 29, the main shaft motor rotates to drive the blank to be machined 7 to rotate, the left numerical control sliding table 5 and the right numerical control sliding table 6 on the two ends drive a three-shaft power head to be under the action of a servo motor, a special combined cutter is utilized to machine outer circles on the two ends through the left outer circle cutter head 11 and the right outer circle cutter head 17 on one station, then machining of an electrode outer cone head and an end face is carried out through one end of the right outer cone cutter head 18 on the two stations, machining of an inner cone hole and an end face is carried out through the left inner cone cutter head 12 on the other end, and machining of the end face is carried out through the left comb milling cutter head 13 on the three stations, The right comb milling cutter head 19 processes inner and outer threads of a blank 7 to be processed in a comb milling mode at two ends, then the left numerical control sliding table 5 and the right numerical control sliding table 6 at the two ends return to the initial positions, then the clamping chucks 29 at the two sides loosen workpieces and return to the initial positions, and finally the blank clamping manipulator clamps the workpieces for blanking. The utility model can process single end and double ends simultaneously; not only can be manually operated, but also can realize semi-automatic and full-automatic processing. The process route of three machine tools can be completed on one device, the two ends of the electrode are simultaneously machined, the labor cost is greatly saved, and the machining efficiency is improved.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present invention. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides a numerical control small electrode bi-polar face machine tool which characterized in that: comprises a lathe bed, an auxiliary supporting frame and a left rotary clamping device, the left rotary clamping device capable of moving left and right is installed on the lathe bed on the left side of the auxiliary support frame, a left tool bit seat frame is arranged on the left tool bit seat frame, a left tool bit capable of processing the left part of the blank to be processed is installed on the lathe bed on the right side of the auxiliary support frame, a right rotary clamping device capable of moving left and right is installed on the lathe bed on the right side of the right rotary clamping device, a right tool bit seat frame is arranged on the right numerical control sliding table, and a right tool bit capable of processing the right part of the blank to be processed is installed on the right tool bit seat frame.

2. The numerical control small electrode double-end-face processing machine tool as claimed in claim 1, characterized in that: the left numerical control sliding table and the right numerical control sliding table are arranged on a machine tool through a machine tool guide rail, the left end of the machine tool is provided with a left transverse shaft servo motor capable of controlling the left numerical control sliding table to move left and right, the rear end of the left numerical control sliding table is provided with a left longitudinal shaft servo motor capable of controlling the left blade holder to move front and back, the left blade head comprises a left outer circular blade head, a left inner conical blade head and a left comb milling blade head, the left outer circular blade head, the left inner conical blade head and the left comb milling blade head are respectively arranged on a left blade holder frame from back to front through corresponding blade holder rotating shafts, the upper ends of the left blade holder frames corresponding to the left outer circular blade head, the left inner conical blade head and the left comb milling blade head are respectively and fixedly provided with cutter shaft driving motors, output shafts of the cutter shaft driving motors are respectively connected with the corresponding blade holder rotating shafts of the left outer circular blade head, the left inner conical blade head and the left comb milling blade head through transmission belts, and the right end of the machine tool is provided with a right transverse shaft servo motor capable of controlling the right numerical control sliding table to move left and right, right numerical control slip table rear end is equipped with the right side axis of ordinates servo motor that can control right blade holder frame back-and-forth movement, right tool bit includes right excircle tool bit, right outer cone tool bit, right side comb milling cutter head is installed on right blade holder frame through corresponding blade holder pivot respectively to the front by the back, correspond right excircle tool bit, right outer cone tool bit, the right blade holder frame upper end of right side comb milling cutter head position is fixed mounting respectively has arbor driving motor, each arbor driving motor's output shaft is respectively through drive belt and corresponding right excircle tool bit, right outer cone tool bit, right side comb milling cutter head's blade holder pivot is connected.

3. The numerical control small electrode double-end-face processing machine tool as claimed in claim 2, characterized in that: the left outer circular cutter head is fixedly provided with a left outer circular lathe tool, the left inner conical boring cutter and the left end face cutter are fixedly arranged on the left inner conical cutter head, the left comb thread cutter is fixedly arranged on the left comb milling cutter head, the right outer circular cutter head is fixedly arranged on the right outer circular cutter head, the right outer conical boring cutter and the right end face cutter are fixedly arranged on the right outer circular cutter head, and the right comb thread cutter is fixedly arranged on the right comb milling cutter head.

4. A numerical control small electrode double-end-face processing machine tool as defined in claim 1, 2 or 3, characterized in that: the left rotary clamping device comprises a left clamp seat frame, a clamping hydraulic cylinder and a clamping chuck, the left clamp seat frame is installed on a lathe bed through a machine tool guide rail, a driving hydraulic cylinder is arranged at the rear part of the left clamp seat frame, the left clamp seat frame can move left and right relative to the lathe bed through a ball screw mechanism installed at the rear side of the lathe bed, a rotary device with a rotary motor is arranged at the middle part of the rear side of the lathe bed, the left clamp seat frame is provided with the clamping chuck capable of automatically clamping and loosening a blank to be machined, the rotary device is connected with the clamping chuck of the left clamp seat frame through gear transmission and can drive the blank to be machined to rotate, the clamping hydraulic cylinder is fixedly installed at the upper end of the left clamp seat frame, a piston rod of the clamping hydraulic cylinder is connected with a locking device of the clamping chuck and can clamp the blank to be machined, and the right rotary clamping device is identical to the left rotary clamping device in structure.

5. A numerical control small electrode double-end-face processing machine tool as defined in claim 1, 2 or 3, characterized in that: the left part behind the lathe bed is provided with an electric cabinet, the right part behind the lathe bed is provided with a hydraulic station, the left part in front of the lathe bed is provided with a left operating table, and the right part in front of the lathe bed is provided with a right operating table.

6. The numerical control small electrode double-end-face processing machine tool as claimed in claim 4, characterized in that: the left part behind the lathe bed is provided with an electric cabinet, the right part behind the lathe bed is provided with a hydraulic station, the left part in front of the lathe bed is provided with a left operating table, and the right part in front of the lathe bed is provided with a right operating table.

7. The numerical control small electrode double-end-face processing machine tool as claimed in claim 1, 2, 3 or 6, characterized in that: the front part of the lathe bed is provided with a blank bracket for placing a plurality of blanks to be processed, the rear part or the side part of the blank bracket is provided with a blank clamping mechanical arm which can transfer the blanks to be processed on the blank bracket to an auxiliary supporting frame, the blank clamping mechanical arm comprises a rotating arm base, a lower arm seat driver, a lower rotating arm driver, an upper arm seat driver, a middle rotating arm driver, an upper rotating arm driver, a rotating claw seat, a claw seat rotating driver, a left claw driving cylinder, a right claw and a right claw driving cylinder, the lower part of the rotating arm base is fixedly arranged on the frame in front of the lathe bed, the lower arm seat with the lower arm seat driver is arranged on the upper part of the rotating arm base and can rotate according to the required angle, the lower rotating arm with the lower rotating arm driver is arranged on the lower arm seat and can rotate according to the required angle, the upper arm seat with the upper arm driver is arranged on the upper end of the lower arm seat and can rotate according to the required angle, the middle rotating arm with a middle rotating arm driver is arranged at the left end of the upper rotating arm seat and can rotate according to a required angle, the upper rotating arm with an upper rotating arm driver is arranged at the left end of the middle rotating arm and can rotate according to a required angle, the rotating claw seat with a claw seat rotating driver is arranged at the lower end of the upper rotating arm and can rotate according to a required angle, a left claw with a left claw driving cylinder is arranged at the left part of the rotating claw seat, a right claw with a right claw driving cylinder is arranged at the right part of the rotating claw seat, the left claw comprises a front clamping finger and a rear clamping finger, the lower part of the front clamping finger and the lower part of the rear clamping finger can clamp a blank to be processed, and the right claw and the left claw have the same structure.

8. The numerical control small electrode double-end-face machining tool of claim 4, characterized in that: the front part of the lathe bed is provided with a blank bracket for placing a plurality of blanks to be processed, the rear part or the side part of the blank bracket is provided with a blank clamping mechanical arm which can transfer the blanks to be processed on the blank bracket to an auxiliary supporting frame, the blank clamping mechanical arm comprises a rotating arm base, a lower arm seat driver, a lower rotating arm driver, an upper arm seat driver, a middle rotating arm driver, an upper rotating arm driver, a rotating claw seat, a claw seat rotating driver, a left claw driving cylinder, a right claw and a right claw driving cylinder, the lower part of the rotating arm base is fixedly arranged on the frame in front of the lathe bed, the lower arm seat with the lower arm seat driver is arranged on the upper part of the rotating arm base and can rotate according to the required angle, the lower rotating arm with the lower rotating arm driver is arranged on the lower arm seat and can rotate according to the required angle, the upper arm seat with the upper arm driver is arranged on the upper end of the lower arm seat and can rotate according to the required angle, the middle rotating arm with a middle rotating arm driver is arranged at the left end of the upper rotating arm seat and can rotate according to a required angle, the upper rotating arm with an upper rotating arm driver is arranged at the left end of the middle rotating arm and can rotate according to a required angle, the rotating claw seat with a claw seat rotating driver is arranged at the lower end of the upper rotating arm and can rotate according to a required angle, a left claw with a left claw driving cylinder is arranged at the left part of the rotating claw seat, a right claw with a right claw driving cylinder is arranged at the right part of the rotating claw seat, the left claw comprises a front clamping finger and a rear clamping finger, the lower part of the front clamping finger and the lower part of the rear clamping finger can clamp a blank to be processed, and the right claw and the left claw have the same structure.