CN2537501Y - Electric spark forming machine tool main shaft travel driving mechanism - Google Patents
Electric spark forming machine tool main shaft travel driving mechanism Download PDFInfo
- Publication number
- CN2537501Y CN2537501Y CN 02218991 CN02218991U CN2537501Y CN 2537501 Y CN2537501 Y CN 2537501Y CN 02218991 CN02218991 CN 02218991 CN 02218991 U CN02218991 U CN 02218991U CN 2537501 Y CN2537501 Y CN 2537501Y
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- China
- Prior art keywords
- spindle
- driving mechanism
- loop chain
- main shaft
- chain
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- Expired - Fee Related
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model relates to a stroke driving device for the spindle of the electric discharge machine, wherein, the spindle is connected with the head through a vertical sliding pair, a driving device is arranged on the head above the spindle; the driving device comprises a chain wheel transmission mechanism with an open-loop chain, a speed reducer, and a motor; the motor is connected with the chain wheel through the speed reducer, the chain wheel is meshed with the open-loop chain; one end of the open-loop chain is connected with the spindle, while a counter weight block is suspended at the other end of the open-loop chain. The utility model is characterized in that the original rigid drive which is mainly in the way of screw and nut transmission is changed into the flexible drive which is mainly in the way of the chain wheel with the open-loop chain. The spindle is sliding upwards due to the pull of the open-loop chain, while the open-loop chain releases, the spindle is sliding downwards due to the deadweight of the spindle and the electrode; furthermore, the chain is flexible and does not press the spindle directly while the spindle is sliding. The utility model has the advantages that: 1. the driving structure is simple, and the transmission is labor saving; 2. the bearing weight of the electrode increases by one time; 3. the electrode is prevented from striking the die during correction and process effectively; 4. the manufacture and assembly is easy.
Description
Technical field
The utility model relates to a kind of EDM shaping machine, comprises general purpose common EDM shaping machine and high-precision numerical control electric spark molding machine.Furtherly, the utility model relates to the travel of spindle driving mechanism of above-mentioned lathe, or claims main shaft driving device.
Background technology
EDM shaping machine has extensive use in machine-building and Mould Machining.In this class machine tool structure, the travel of spindle driving mechanism is one of its key position, its effect mainly is to drive shaped electrode to move up and down according to certain rules, and its structure and performance not only directly influence the working condition of axis system, but also directly influence the processing effect of whole lathe.In the prior art, the travel of spindle driving mechanism more approaching with the utility model is: main shaft is slidingly connected by vertically arranged linear guides and head, the lower end of main shaft is provided with chuck, shaped electrode is fixed on the chuck, the upper end of main shaft is provided with drives structure, this drives structure is driven by DC servo motor, through being with synchronously and the synchromesh gear transmission mechanism, the screw-drive mechanism that constitutes through bolt and nut transmits motion on the main shaft again, main shaft property along the line guide rail is slided up and down, see shown in the accompanying drawing 3.When motor rotated by a direction, main shaft drove electrode and moves downward, and main shaft drive electrode moves upward when the motor backward rotation, back and forth realizes Electric Discharge Machining with this.The advantage of above-mentioned travel of spindle driving mechanism is that kinematic accuracy is higher, but also have many deficiencies: 1, travel of spindle adopts screw-and-nut mechanism, because transmission accuracy is had relatively high expectations, frictional force is bigger, thereby make the work effort of motor, the load and the loss of motor have been increased so on the one hand, the service life of having reduced motor on the other hand; 2, behind the employing screw-and-nut mechanism, because it is very accurate that the direction of linear guides and screw-and-nut mechanism requires, bring certain difficulty therefore for manufacturing and assembling, otherwise not only can produce very big resistance, and quicken the wearing and tearing of linear guides and bolt and nut; 3, adopt behind the screw-and-nut mechanism because frictional resistance increases the bearing capacity reduction that makes electrode; 4, adopt screw-and-nut mechanism after, especially electrode man-hour can occur hitting the mould phenomenon proofreading and correct and add.For this reason, the utility model has designed a kind of open loop chain transmission driving mechanism of flexibility, to overcome above-mentioned deficiency from improving the angle of travel of spindle drives structure.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of EDM shaping machine travel of spindle driving mechanism, main shaft is connected through vertical sliding pair with head, the head of main shaft top is provided with driving mechanism, driving mechanism comprises open loop chain sprocket transmission mechanism, decelerator and motor, and motor is connected with sprocket wheel through decelerator, sprocket wheel and open loop chain engages, one end of open loop chain is connected with main shaft, and the other end suspends.
Related content in the technique scheme is explained as follows:
1, described " main shaft is connected through vertical sliding pair with head " is the structure that prior art adopts, and wherein vertical sliding pair has two layers of meaning, and one deck is meant that sliding pair is arranged vertically, and the relative head of main shaft is slided up and down; Another layer is meant the notion of sliding pair, sliding pair described here is the annexation of main shaft and head, and sliding pair can be made of the rail type syndeton, as linear guides, dovetail grooved guide rail etc., also can be constituted, as cooperating of guide pillar and sliding sleeve by sliding sleeve type syndeton.
2, described " main shaft top " is meant the position that main shaft is above.
3, in the technique scheme, keep normal meshing relation between open loop chain and the sprocket wheel, prevent that chain from taking off chain, hold suspending of open loop chain to be provided with balancing weight, transmission better effects if like this in order to make.
4, in the technique scheme, in order to make the better effects if of chain transmission drive shaft, can be provided with jockey sprocket in open loop chain sprocket transmission mechanism, the open loop chain is connected with main shaft through jockey sprocket, make the open loop chain be connected with main shaft one section be in main shaft directly over.
5, in the technique scheme, described decelerator is a kind of reduction gearing mechanism, specifically can be made of Worm and worm-wheel gearing, also can be made of gear drive.
6, in the technique scheme,, certain is with synchronously and synchromesh gear is in transmission connection for needing to increase between motor and decelerator.Also can between motor and decelerator, directly be connected by power transmission shaft.
7, in the technique scheme, described motor generally adopts DC servo motor or AC servo motor, certainly also can adopt the motor of other kind from the principle argumentation, but DC servo motor or AC servo motor are controlled easily by contrast, and adopting DC servo motor under the condition that satisfies needs such as power is optimal selection.
The utility model principle and technological core are: original rigidity based on the bolt and nut transmission is driven the soft drive mode that is modified into based on the transmission of open loop chain sprocket, utilize the open loop chain on draw main shaft upwards slided, opposite open loop chain loosens, the deadweight that utilizes main shaft and electrode is to lower slider, and is flexible can directly not oppress main shaft at main shaft chain in the stroke of lower slider.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, the utility model has reduced the frictional resistance in the transmission process, and transmission is more laborsaving, can prolong the service life of motor.
2, the utility model original bolt and nut drive mechanism of electrode weight ratio that can carry doubles, and the scope of application of electrode weight further enlarges.
3, the utility model can effectively prevent to proofread and correct and add the electrode in man-hour and hit the mould phenomenon, has avoided the damage of mould and electrode.
4, an end of the utility model open loop chain in assembling process can be avoided original and make or assembling neutral line guide rail and the point-device directionality requirement of screw-and-nut mechanism as long as be connected with main shaft under natural plumbness, has reduced assembly difficulty.
5, the utility model has reduced the requirement of head section machining, such as this operation etc. of boring a hole of the bearing block of supporting screw.
Description of drawings
Accompanying drawing 1 is first kind of scheme schematic diagram of the utility model travel of spindle driving mechanism;
Accompanying drawing 2 is second kind of scheme schematic diagram of the utility model travel of spindle driving mechanism;
Accompanying drawing 3 is the third scheme schematic diagram of the utility model travel of spindle driving mechanism;
Accompanying drawing 4 is existing EDM shaping machine travel of spindle driving mechanism principle.
In the above accompanying drawing: 1, motor; 2, worm reducer; 3, sprocket wheel; 4, balancing weight; 5, chain; 6, jockey sprocket; 7, main shaft; 8, electrode; 9, workpiece; 10, workbench; 11, head; 12, synchromesh gear; 13, be with synchronously; 14, synchromesh gear; 15, screw drive mechanism; 16, bearing block.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1, a kind of EDM shaping machine travel of spindle driving mechanism, main shaft 7 is connected through vertical ball linear guides with head 11, main shaft 7 can be slided up and down in head 11, the head 11 of main shaft 7 tops is provided with driving mechanism, and described driving mechanism is made up of open loop chain sprocket transmission mechanism, worm reducer 2, synchronous belt drive mechanism and motor 1.Motor 1 through synchromesh gear 12, be with 13 synchronously, synchromesh gear 14 is connected with worm reducer 2, the output shaft of worm reducer 2 is connected with sprocket wheel 3, sprocket wheel 3 and 5 engagements of open loop chain, one end of open loop chain 5 is connected with main shaft 7, the position of sprocket wheel 3 makes chain 5 naturally vertically directly over main shaft 7, the other end suspends through jockey sprocket 6, and the end that suspends is provided with balancing weight 4.Described motor 1 is a DC servo motor.During work, electrode 8 is equipped with in the lower end of main shaft 7, workpiece 9 is fixed on the workbench 10, when motor 1 is rotated in the forward, it rotates exports by passing on the sprocket wheel 3 after worm reducer 2 decelerations, and sprocket wheel 3 drives open loop chains 5 to a direction motion, and the motion of chain 5 upwards spurs main shaft 7 together with electrode 8, guiding lower main axis 7 at the ball linear guides upwards slides along guide rail, makes electrode 8 leave workpiece 9.Opposite when motor 1 reverse rotation, electrode 8 is near processing work 9, because chain 5 is a kind of flexible structures, can be crooked behind electrode 8 contact workpieces, and therefore in correction and process, can not produce and hit the mould phenomenon.The controlled circuit control of DC servo motor in Electric Discharge Machining.
Embodiment two: shown in accompanying drawing 2, and a kind of EDM shaping machine travel of spindle driving mechanism.With the difference part of embodiment one be: motor 1 directly is connected with worm reducer 2, and the output shaft of worm reducer 2 is connected with sprocket wheel 3, and other is identical.
Embodiment three: shown in accompanying drawing 3, and a kind of EDM shaping machine travel of spindle driving mechanism.With the difference of embodiment two be: the other end of open loop chain 5 is without jockey sprocket, but leans against on the inclined-plane, and other is identical.
Claims (8)
1, a kind of EDM shaping machine travel of spindle driving mechanism, main shaft is connected through vertical sliding pair with head, the head of main shaft top is provided with driving mechanism, it is characterized in that: driving mechanism comprises open loop chain sprocket transmission mechanism, decelerator and motor, motor is connected with sprocket wheel through decelerator, sprocket wheel and open loop chain engages, an end of open loop chain is connected with main shaft, and the other end suspends.
2, EDM shaping machine travel of spindle driving mechanism according to claim 1 is characterized in that: the end that suspends of described open loop chain is provided with balancing weight.
3, EDM shaping machine travel of spindle driving mechanism according to claim 1 is characterized in that: be provided with jockey sprocket in the described open loop chain sprocket transmission mechanism, the open loop chain is connected with main shaft through jockey sprocket.
4, EDM shaping machine travel of spindle driving mechanism according to claim 1, it is characterized in that: described decelerator is made of Worm and worm-wheel gearing.
5, EDM shaping machine travel of spindle driving mechanism according to claim 1, it is characterized in that: described decelerator is made of gear drive.
6, EDM shaping machine travel of spindle driving mechanism according to claim 1 is characterized in that: be in transmission connection by synchronous band and synchromesh gear between described motor and the decelerator.
7, EDM shaping machine travel of spindle driving mechanism according to claim 1 is characterized in that: directly be connected by power transmission shaft between described motor and the decelerator.
8, EDM shaping machine travel of spindle driving mechanism according to claim 1, it is characterized in that: described motor is DC servo motor or AC servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218991 CN2537501Y (en) | 2002-02-19 | 2002-02-19 | Electric spark forming machine tool main shaft travel driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218991 CN2537501Y (en) | 2002-02-19 | 2002-02-19 | Electric spark forming machine tool main shaft travel driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537501Y true CN2537501Y (en) | 2003-02-26 |
Family
ID=33697556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218991 Expired - Fee Related CN2537501Y (en) | 2002-02-19 | 2002-02-19 | Electric spark forming machine tool main shaft travel driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537501Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905361A (en) * | 2010-06-24 | 2010-12-08 | 无锡微研有限公司 | Feeding balance mechanism of ultra-fine electric spark machine tool |
-
2002
- 2002-02-19 CN CN 02218991 patent/CN2537501Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905361A (en) * | 2010-06-24 | 2010-12-08 | 无锡微研有限公司 | Feeding balance mechanism of ultra-fine electric spark machine tool |
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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 |