CN2604266Y - Graphite electrode double-thread chaser processing machine tool - Google Patents
Graphite electrode double-thread chaser processing machine tool Download PDFInfo
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- CN2604266Y CN2604266Y CN 03220355 CN03220355U CN2604266Y CN 2604266 Y CN2604266 Y CN 2604266Y CN 03220355 CN03220355 CN 03220355 CN 03220355 U CN03220355 U CN 03220355U CN 2604266 Y CN2604266 Y CN 2604266Y
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Abstract
The present utility model relates to a double screw thread processing machine tool, belonging to field of machining technique. A main spindle box and a work holder are installed at two ends and the middle part of the guide rail of the machine bed respectively. A conductivity mechanism is installed at the back of the main spindle box. A carding tool is fixed in the front of the main spindle box. A radial feed motor of the carding tool is fixed on the carding tool seat where electric spindle seat is installed. The carding tool is fixed at the front end of the electric spindle in the electric spindle seat. The bottom of the work holder is supported on the transverse rail and linked up with lead screw mounted under the transverse rail through screw nut. The utility model makes the cutting movement of the be superposed on the spiral movement of the spindle naturally and solves the current supply problem of the moving parts, which realizes the needed resultant motion when processing taper thread by the carding tool individually. The result is that the loads of the moving parts are lightened obviously, the precision is increased, the energy consumption is decreased greatly, the structure of the machine tool and the transmission structure are both simplified significantly. The utility model can also identify the length of work piece automatically and are located floatingly, which saves the clamping time and increases the working efficiency.
Description
Technical field
The utility model relates to a kind of thread cutting machine, and especially a kind of thread cutting machine of graphite electrode belongs to the machining equipment technical field.
Background technology
Graphite electrode is the important Purchased Item of metal smelt industry.Because the graphite electrode material softness, bulky, requirement on machining accuracy is high, so process equipment is special.Especially the inner hole cone screw thread of graphite electrode processing, because need screw and cutting movement complex superposition mutually, and the bond strength the when crudy of workpiece not only directly influences the electrode use, and the electric conductivity of electrode also had fundamental influence, therefore be the most complicated in the graphite electrode processing, also be the most key operation.
Have only a few countries such as the U.S., Japan can make the graphite electrode thread cutting machine at present in the world.Understand according to the applicant, existing graphite electrode thread cutting machine generally adopts the main shaft holding workpiece to realize the design of screw, chasing tool axle clamping cutter realization cutting movement.For example the same category of device of Japan's manufacturing promptly is supported on the excircle of workpiece with spindle end built-in radial claw, and when work, driving its rotation, main axle structure certainly will be very huge as a result, not only the manufacturing cost height, and be easy to generate the wearing clearance that is difficult to eliminate, influence machining accuracy.In addition, also there is following defective in existing process equipment: 1, there are position error twice in screw thread end face and screw thread, and be big with the thread center line error of perpendicularity; 2, transmission system complexity, power consumption is big; 3, repeatedly feeding of chasing tool, depth of cut is difficult to accurate control.
Summary of the invention
The primary and foremost purpose of the utility model patent is: at the problem of above-mentioned prior art workpiece Rotation Design scheme existence, a kind of two screw thread comb of graphite electrode machining tool of realizing spiral and cutting movement complex superposition with comparatively simple drive mechanism is proposed, thereby help guaranteeing machining accuracy, and be convenient to realize automation.
The further purpose of the utility model patent is: at above-mentioned prior art screw thread end face and the big problem of thread center's line error of perpendicularity, a kind of two screw threads comb of graphite electrode machining tool that does not have the secondary position error and can realize floating and control the different length workpiece is proposed, thereby saved tool setting and clamping time, further improved the machining accuracy and the efficient of graphite electrode screw thread.
In order to reach above primary and foremost purpose, main spindle box is installed at the bed ways two ends of the two screw thread comb of the utility model graphite electrode machining tool, work holder is installed at the middle part, the bottom backing plate of two main spindle boxes is connected with the motor-driven screw mandrel of the length feed at lathe bed two ends, constitute longitudinal feed mechanism, main motor on two main spindle boxes is connected with main shaft by the transmission mechanism in the main spindle box, conductive mechanism is equipped with in the main spindle box rear end, the front end of main shaft is the chasing tool seat fixedly, be fixed with the chasing tool feed motor that is electrically connected with conductive mechanism on the chasing tool seat, direction perpendicular to main-shaft axis is installed the chasing tool frame, the front end of chasing tool frame is equipped with the electric main shaft that is electrically connected with conductive mechanism, the electricity front-end of spindle is chasing tool fixedly, constitutes radially delivering gear; The bottom support of work holder is being fixed on the long rails at lathe bed middle part, and is connected the formation clamp mechanism by nut with screw mandrel under being installed in cross track.
Like this, process required screw and be composited with rotatablely moving of main shaft, the realization that rotatablely moves that the feed cutting movement of chasing tool then drives chasing tool by the radial feed motion and the electric main shaft of chasing tool by the motion of the length feed of main spindle box.Because the utility model has adopted chasing tool feed motor and electric main shaft are installed in design on the main shaft, the motion of feed cutting is superimposed upon in the screw of main shaft naturally, the utility model passes through conductive mechanism simultaneously, rationally and dexterously solved the powerup issue of moving component, therefore realized under the motionless situation of workpiece, realizing the required resultant motion of taper thread processing separately by chasing tool.The result, behind the clamping device clamping work pieces, in whole process, bulky workpiece remains static all the time, thereby makes the load of machine tool motion spare obviously alleviate, precision improves, help guaranteeing crudy, and greatly reduce energy consumption, see on the whole, machine tool structure and transmission mechanism are all significantly simplified, and have created desirable condition for realizing numerically controlled automatic.
In order to reach the further purpose of the utility model patent, the front-end of spindle of the two screw thread comb of above graphite electrode machining tool also is fixed with doctor blade holder, and the cutting edge scraper vertical with main-shaft axis is housed on the doctor blade holder, and unsteady alignment sensor is equipped with in doctor blade holder the place ahead.Therefore, workpiece length no matter, sensor can both be discerned automatically, sends signal when sensor and workpiece reach the appropriate location, and system changes worker's process preface over to, need not tool setting or clamping adjustment again, raises the efficiency thereby save time.Add man-hour, as long as scraper is installed in correct position, can make it before screw thread processing or when drawing to an end, the end face strickling of graphite electrode workpiece.Obviously, because scraper and main shaft be connected, so do not exist the secondary position error, can guarantee that end face is vertical with the thread center line, has further improved crudy.
Description of drawings
Below in conjunction with accompanying drawing the utility model patent is further described.
Fig. 1 is the structural representation of an embodiment of the utility model patent.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cutaway view Amplified image of Fig. 1.
Fig. 4 is a front-end of spindle structure enlarged diagram among Fig. 1 embodiment.
The specific embodiment
Embodiment one
Present embodiment is the two screw thread comb of a numerical control graphite electrode machining tool, and its basic structure as depicted in figs. 1 and 2.Main spindle box 3 is installed at lathe bed 9 upper surface guide rail two ends respectively, the bottom backing plate of two main spindle boxes 3 is connected with the screw mandrel that the length feed motor 1 at lathe bed 9 two ends drives, constitute longitudinal feed mechanism, under the driving of length feed motor 1, main spindle box 3 can move horizontally along the guide rail of lathe bed 9, pollute lathe bed for fear of the graphite bits, hiding on the guide rail has telescopic dust cover 5.Main motor 2 on two main spindle boxes 3 is connected with main shaft by the gear drive in the main spindle box 3.Therefore the dust shield 15 that the fixed installation of front-end of spindle appearance links to each other with dust exhaust apparatus can in time get rid of the dust that processing produces.The unsteady alignment sensor 28 of realizing unsteady control is installed on the dust shield 15.
As seen from Figure 4, the front end of main shaft 4 has chasing tool seat 16, the chasing tool feed motor 17 that is electrically connected with conductive mechanism 14 is arranged on it, direction perpendicular to main-shaft axis is equipped with chasing tool frame 18, constitute radially delivering gear of chasing tool with screw mandrel 19, nut 20, the front end of chasing tool frame 18 has the electric spindle drum 21 that is electrically connected with conductive mechanism 14, and electric main shaft 22 front ends in the electric spindle drum 21 are chasing tool 23 fixedly.Chasing tool 23 is by electric main shaft 22 driven rotary, simultaneously with 4 revolution of lathe main shaft like this.In addition, the front end of main shaft 4 also is fixed with doctor blade holder 26 by horizontal stand 24 and vertical support frame 25, and the cutting edge scraper vertical with main-shaft axis 27 is housed on the doctor blade holder 26.
In order to realize numerical control, length feed motor 1 in the present embodiment and chasing tool radially feed motor 17 etc. are servomotor.During work, after workpiece moved on on the workpiece support 8, control system made horizontal clamping hydraulic motor 11 work, drives two clamping devices 6 and is synchronized with the movement, self-centering clamping work pieces cylindrical.Length feed servomotor 1 drives two main spindle boxes 3 along lathe bed 9 guide rail rapid traverses, and after the control sensor 28 that floats was near workpiece and sender, system changed worker's process preface over to.Main motor 2 drives main shafts 4 rotations, makes to rotatablely move and the straight-line feed motion is combined into the required screw of taper thread processing.Meanwhile, the chasing tool 23 that rotates with main shaft 4 rotates at a high speed under the drive of electric main shaft 22, form taper thread processing required be superimposed upon cutting movement on the screw, the radially depth of cut during its cutting by the chasing tool feed motor 17 of numerical control by chasing tool radially delivering gear drive control.Maintain static owing to add the man-hour workpiece, so canonical loading alleviates greatly, the kinematic accuracy of lathe improves, and the high-speed cutting campaign of chasing tool has then guaranteed desirable accuracy of screw machining.
In addition, owing to pass through to adjust horizontal stand and vertical support frame before the processing, make scraper 27 be in the appropriate location, therefore when above four kinds of organic complex superposition of motion, after making chasing tool 23 finish the processing of electrode two ends inside tapered thread, scraper 27 wipes the electrode both ends of the surface off, guaranteed the vertical of electrode end surface and thread center line.
Experimental results show that, the two screw thread comb of the numerical control electrode of present embodiment machining tool has following plurality of advantages: good rigidly, structure is comparatively simple, bearing capacity is strong, environmental pollution is little, and is easy to adjust, the positioning accuracy height, easily be automated, can high efficiency realize that the automatic processing of graphite electrode both-end taper thread and end face wipe off.
Claims (7)
1. the two screw threads of graphite electrode are combed machining tool, and main spindle box is installed at the bed ways two ends, and work holder is installed at the middle part, and the bottom of two main spindle boxes is connected with the motor-driven screw mandrel of the length feed at lathe bed two ends, constitutes longitudinal feed mechanism; Main motor on two main spindle boxes is connected with main shaft by the transmission mechanism in the main spindle box, it is characterized in that: conductive mechanism is equipped with in described main spindle box rear end, the front end of main shaft is the chasing tool seat fixedly, be fixed with the chasing tool feed motor that is electrically connected with conductive mechanism on the chasing tool seat, direction perpendicular to main-shaft axis is installed the chasing tool frame, the front end of chasing tool frame is equipped with the electric main shaft that is electrically connected with conductive mechanism, and electric front-end of spindle is chasing tool fixedly, constitutes radially delivering gear; The bottom support of described work holder is being fixed on the long rails at lathe bed middle part, and is connected the formation clamp mechanism by nut with screw mandrel under being installed in cross track.
2. according to the two screw thread comb of the described graphite electrode of claim 1 machining tool, it is characterized in that: the front end of described main shaft is fixed with doctor blade holder by horizontal stand and vertical support frame, and the cutting edge scraper vertical with main-shaft axis is housed on the doctor blade holder.
3. according to claim 1 or the two screw thread comb of 2 described graphite electrodes machining tool, it is characterized in that: the front side of described work holder is the C clamp card that oblique upper 60 degree and oblique below 60 degree are respectively equipped with bite, rear side is the horizontal mounting board that is provided with horizontal bite, the bottom support of two mounting boards is on the cross track that is fixed in the lathe bed middle part, and be connected with the positive and negative threaded screw rod that revolves under being installed in cross track by nut respectively, constitute vertical clamp mechanism, it is 1: 2 that the positive and negative line that revolves screw thread is counted ratio.
4. according to the two screw thread comb of the described graphite electrode of claim 3 machining tool, it is characterized in that: hiding on the described bed ways has telescopic dust cover.
5. according to the two screw thread comb of the described graphite electrode of claim 1 machining tool, it is characterized in that: the dust shield that described front-end of spindle appearance fixed installation links to each other with dust exhaust apparatus.
6, according to the two screw thread comb of the described graphite electrode of claim 5 machining tool, it is characterized in that: the unsteady alignment sensor of realizing unsteady control is installed on the described dust shield.
7, according to the two screw thread comb of the described graphite electrode of claim 1 machining tool, it is characterized in that: the front end of described chasing tool frame is equipped with the electric spindle drum that is electrically connected with conductive mechanism, the fixing chasing tool that is revolved round the sun with the lathe main shaft by electric main shaft driven rotary, while of the electric front-end of spindle in the described electric spindle drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220355 CN2604266Y (en) | 2003-03-14 | 2003-03-14 | Graphite electrode double-thread chaser processing machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220355 CN2604266Y (en) | 2003-03-14 | 2003-03-14 | Graphite electrode double-thread chaser processing machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604266Y true CN2604266Y (en) | 2004-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220355 Expired - Fee Related CN2604266Y (en) | 2003-03-14 | 2003-03-14 | Graphite electrode double-thread chaser processing machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604266Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182744A (en) * | 2011-12-27 | 2013-07-03 | 泰兴市晨光高新技术开发有限公司 | Continuous processing method and processing production line for graphite electrodes |
| CN108088405A (en) * | 2017-12-22 | 2018-05-29 | 中国平煤神马集团开封炭素有限公司 | A kind of graphite electrode body taper thread parameter automatization measuring device and method |
| CN108253910A (en) * | 2017-12-22 | 2018-07-06 | 中国平煤神马集团开封炭素有限公司 | Graphite electrode ontology or connector taper thread automatic measurement mechanism, system and method |
-
2003
- 2003-03-14 CN CN 03220355 patent/CN2604266Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182744A (en) * | 2011-12-27 | 2013-07-03 | 泰兴市晨光高新技术开发有限公司 | Continuous processing method and processing production line for graphite electrodes |
| CN108088405A (en) * | 2017-12-22 | 2018-05-29 | 中国平煤神马集团开封炭素有限公司 | A kind of graphite electrode body taper thread parameter automatization measuring device and method |
| CN108253910A (en) * | 2017-12-22 | 2018-07-06 | 中国平煤神马集团开封炭素有限公司 | Graphite electrode ontology or connector taper thread automatic measurement mechanism, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |