CN108907377A - A kind of spherical mounted point electrolytic dressing device and method - Google Patents
A kind of spherical mounted point electrolytic dressing device and method Download PDFInfo
- Publication number
- CN108907377A CN108907377A CN201810802106.1A CN201810802106A CN108907377A CN 108907377 A CN108907377 A CN 108907377A CN 201810802106 A CN201810802106 A CN 201810802106A CN 108907377 A CN108907377 A CN 108907377A
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- Prior art keywords
- conductive
- circular arc
- composite cathode
- sharpening block
- bulb
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING 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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
Abstract
The invention discloses a kind of spherical mounted point electrolytic dressing device and methods.The device includes conductive sharpening block, it is connected with the pulse power between composite cathode and conductive sharpening block, composite cathode connects the anode of the pulse power, and conductive sharpening block connects the cathode of the pulse power, circular arc camber is provided on conductive sharpening block, circular arc camber extends different radii arc surface along conductive sharpening block.The present invention is provided with circular arc camber on conductive sharpening block, can satisfy the finishing demand of the bulb of different radii, versatile;The present invention is based on the principles of the accurate digital control of numerical control electrolysis machine tool composite processing machine tool displacement and Electrolyzed Processing, copper base diamond spherical mounted point is fed to taper circular arc while rotating, and the precision of conductive knife sharpening device circular arc can be replicated by the principle that precision ECM is processed.The present invention is based on the principle copper base diamond spherical mounted points of anodic solution to be trimmed, and conductive knife sharpening device arc section is lossless as cathode, can reuse for a long time.
Description
Technical field
The present invention relates to a kind of numerical control electrolysis machine tool Compound Machining copper base diamond balls for non-traditional manufacture field
Shape bistrique restoring on line device and dressing method are mainly used for copper base diamond spherical mounted point in numerical control electrolysis machine tool Compound Machining
On-line electrolytic dissolution precise dressing.
Background technique
Processing used in machine-building at present can be divided into tradition machinery processing and non-traditional processing.
Tradition machinery processing is to lean on cutter material harder than workpiece material, using mechanical energy material removal extra on workpiece
, it is feasible under normal circumstances.But in the case that workpiece material is more and more hard, finished surface is more and more complicated, tradition
Machining then will limit productivity and influence processing quality, can not even process sometimes;If the wall thickness of workpiece is more and more small
(wall thickness is less than 0.5 millimeter), since there are the effects of mechanical force for traditional machining, it is easy to workpiece to be machined is damaged, it is difficult
To complete processing tasks.
Non-traditional processing is the special process, realizes the workpiece hard with soft tool processes, mainly use electricity, chemistry, light,
The energy such as sound and heat are to be processed, and there is no significant machine cut power between tool and workpiece in process.?
In special process method, electrical discharge machining precision is high, but processing efficiency is low;Electrolyzed Processing it is high-efficient, but machining accuracy is poor.Number
It controls electrolytically and mechanically combined processing technology and is integrated with that the flexibility of numerical control, Electrolyzed Processing be high-efficient and mechanical grinding (or grinding) precision is high
Advantage, the composite cathode using rotation with interior spray and outer spray function is as tool.In process, composite cathode connects
The cathode of direct current pulse power source, workpiece connect the anode of direct current pulse power source, and working solution is sprayed between composite cathode and workpiece, multiple
It closes cathode opposite piece and makees numerical control generating motion, the principle based on electrolysis-mechanical grinding (or grinding) Compound Machining can process
Complicated part out.Copper base diamond spherical mounted point is a kind of composite cathode, by replacing different composite cathodes, can be carried out
Numerical control electrolysis cutting, boring and milling are cut, are ground and electrochemical copolymerization polishing.May be implemented on the lathe to the same workpiece into
Row roughing, finishing and polishing eliminate part due to repeating the installation error caused by installing.The technology has such as
Lower feature:(1) complicated part is just can be processed by numerical control programming with the composite cathode of simple shape;(2) narrow slit, narrow can be processed
Slot, thin-walled and Low rigidity part;(3) various high rigidity, high tenacity and high-wearing feature metal difficult-to-machine material can be processed;(4) compare
Mechanical grinding has higher processing efficiency, has higher machining accuracy than Electrolyzed Processing;(5) Anodic dissolution is with metal
Ion scale removes material, and the automation especially suitable for metal surface polishes.
In this process, the workpiece of any complicated shape can be processed with copper base diamond spherical mounted point, still,
The spherical surface precision of bulb will directly affect machining accuracy.
Bulb composite cathode generally uses sintercorundum technique to manufacture, and modifies very difficult.Numerical control electrolysis machine tool is multiple
Closing processing is a kind of light contact processing, and the spherical surface precision of bulb composite cathode determines the precision of processing.Ball in process
The spherical surface of head composite cathode loses circle because of abrasion, therefore, in order to promote the application of numerical control electrolysis machine tool composite processing machine tool, it is necessary to
Solve the problems, such as the online precise dressing of composite cathode.Once solving the problems, such as the On-line electrolytic dissolution precise dressing of bulb composite cathode, just
The bulb abrasion loss of bulb composite cathode can be effectively predicted, to improve the precision of numerical control electrolysis machine tool Compound Machining.
Summary of the invention
In order to solve the problems, such as the online precise dressing of composite cathode existing in the prior art, the present invention provides a kind of spherical shape
Bistrique electrolytic dressing device and method.
Technical scheme is as follows:
The present invention provides a kind of spherical mounted point electrolytic dressing device, and described device is for repairing the bulb of composite cathode
Whole, described device includes conductive sharpening block, is connected with the pulse power between the composite cathode and conductive sharpening block, described compound
Cathode connects the anode of the pulse power, and conductive sharpening block connects the cathode of the pulse power, is provided with circular arc song on the conduction sharpening block
Face, the circular arc camber extend different radii arc surface along conductive sharpening block.
Further, the circular arc camber is conical circular arc camber.
Further, the conductive sharpening block is set on platen.
Further, the Y-direction of conductive sharpening block is parallel with the Y-axis of lathe, the X-direction of conductive sharpening block and the X of lathe
Axis is parallel.
Further, the arc radius of the circular arc camber gradually becomes smaller along the y-axis direction, forms conical circular arc camber.
Further, the conductive sharpening block containing the circular arc camber is processed by unitary conductive material by low-speed WEDM
It is made.
Further, the bulb is copper base diamond material.
The present invention also provides a kind of spherical mounted point electrolytic dressing methods, which is characterized in that including:
To knife:The lowest part of the bulb of composite cathode is moved to the k level position of conductive sharpening block, makes compound yin
The minimum point of the bulb of pole is located at interval above plane;
It whets a knife:Composite cathode is mobile to circular arc camber in X-direction, while in the circular arc camber of bulb and conductive sharpening block
Between spray into working solution, rotate composite cathode;
The selection of sharpening position:In forming finishing processing, as composite cathode is trimmed, the radius of bulb reduces, and leads
The arc radius of the circular arc camber of electric mill cutter block is opposite to be increased, and dressing accuracy is lost, at this point, composite cathode is moved along Y-direction,
Select new sharpening position.
Further, during to knife, it is located at the minimum point of the bulb of composite cathode above plane at 0.1mm.
Further, composite cathode is the trim amount of the bulb of composite cathode in the amount of movement of X-direction, is compiled in numerical control
Cheng Shi, the trim amount are biased compensation to the radius of bulb.
Beneficial effects of the present invention are as follows:
The device of the invention is provided with circular arc camber on conductive sharpening block, can satisfy the finishing of the bulb of different radii
Demand, it is versatile.Using spherical mounted point electrolytic dressing device and method of the invention, bulb composite cathode can effectively solve the problem that
On-line electrolytic dissolution precise dressing problem, so as to be effectively predicted the bulb abrasion loss of bulb composite cathode, and then improve numerical control
The precision of electrolytically and mechanically combined processing.The On-line electrolytic dissolution precise dressing technology of bulb composite cathode electricity more online than bulb composite cathode
Spark dressing technique is high-efficient, and conductive sharpening block is lossless, can be used for a long time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spherical mounted point electrolytic dressing device of the present invention.
It is marked in figure:1, platen;2, conductive sharpening block;2-1, circular arc camber;3, the pulse power;4, compound yin
Pole;4-1, bulb;5, working solution.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
In order to solve the problems, such as the online precise dressing of bulb composite cathode, the present invention provides a kind of spherical mounted point electrolytic dressing
Device, as shown in Figure 1.The device includes conductive sharpening block 2, is connected with the pulse power between composite cathode 4 and conductive sharpening block 2
3, in bulb composite cathode restoring on line, composite cathode 4 connects the anode of the pulse power 3, and conductive sharpening block 2 connects the pulse power 3
Cathode.Circular arc camber 2-1 is provided on conductive sharpening block 2.Circular arc camber 2-1 extends different radii along conductive sharpening block 2
Arc surface.
Preferably, circular arc camber 2-1 is conical circular arc camber.
Preferably, conical circular arc camber conduction sharpening block 2 is by unitary conductive material by low-speed WEDM processing system
At.
Optionally, the material of bulb 4-1 is selected as copper base diamond material.
The part circular arc camber 2-1 of conductive sharpening block 2 is Precision Machining position, form and dimensional precision 0.001mm with
Interior, the big interelectrode gap of the radius of the bulb 4-1 of the radius ratio bulb composite cathode of circular arc camber 2-1 (generally takes
0.1mm), in order to which the bulb for supplementing composite cathode is worn, so arc radius gradually becomes smaller along the y-axis direction, make conductive sharpening block
Arc section does tapered.Conductive sharpening block 2 is mounted on platen 1, makes the Y-direction of conductive sharpening block 2 and the Y-axis of lathe
In parallel, make the X-direction of conductive sharpening block 2 parallel with the X-axis of lathe.
Spherical mounted point electrolytic dressing method of the invention is:
(1) to knife.The bulb 4-1 lowest part of composite cathode is moved to the k level position of conductive sharpening block, made multiple
The bulb 4-1 minimum point for closing cathode is located at 0.1mm above plane.
(2) it whets a knife.Bulb composite cathode 4 is moved to the left in X-direction, while in composite cathode bulb 4-1 and conductive mill
Working solution 5 is sprayed between cutter block 2-1, rotates bulb composite cathode 4, it is ensured that the conductive position sharpening block 2-1 does not generate electric spark, ball
Head composite cathode 4 is moved to the left the synergy with the rotary motion of bulb composite cathode 4 in X-direction, can electrolytic dressing
Process high-precision bulb, bulb composite cathode 4 in the trim amount that the amount of movement of X-direction to the left is exactly bulb composite cathode,
This trim amount will be biased compensation in numerical control programming to Probe-radius, it is ensured that the essence of numerical control electrolysis machine tool Compound Machining
Degree.
(3) selection of sharpening position.In forming finishing processing, as bulb composite cathode is trimmed, Probe-radius subtracts
Small, the position the 2-1 arc radius of conductive sharpening block is opposite to be increased, to lose dressing accuracy.At this moment, as long as allowing composite cathode 4
It moves forward in the Y direction, so that it may select new sharpening position, it is ensured that all conical circular arc portions of conductive sharpening block are all
It can investment electrolysis forming finishing.
The present embodiment has developed a 5-shaft linkage numerical control electricity based on a 5-shaft linkage numerical control High-speed engraving and milling lathe
Solution processing model machine, the equipment realize the On-line electrolytic dissolution precise dressing of bulb composite cathode.
Conductive sharpening block 2 is processed by unitary conductive material-red copper using low-speed WEDM.The 2- of conductive sharpening block
1 position is Precision Machining position, and form and dimensional precision is within 0.001mm.Conductive sharpening block is mounted on 5-shaft linkage numerical control
On the workbench of High-speed engraving and milling lathe, the Y-axis of conductive sharpening block is parallel with the Y-axis of lathe, the X-axis of conductive sharpening block and lathe
X-axis is parallel, and conductive sharpening block is compressed with Machine tool pressure plate, and connects the cathode of the pulse power.Bulb composite cathode is mounted on lathe
Knife handle on, connect the anode of the pulse power, copper-based diamond dust bulb diameter is Φ 17.24mm, and finishing machined parameters see the table below.
Before finishing processing, it should be ensured that the lowest point of the bulb minimum point of copper-based diamond dust composite cathode and conductive sharpening block
Gap be 0.1mm, the speed of mainshaft is 1500r/min, x-axis feed speed 0.1mm/min in processing.It is measured after the completion of finishing multiple
The trim amount for closing cathode is 0.6195mm, and the copper-based diamond dust bulb diameter after finishing is 16.00 1mm of Φ, and circle bounce is
0.002mm。
In conclusion the present invention is displaced using the accurate digital control of numerical control electrolysis machine tool composite processing machine tool, added according to electrolysis
The principle of work devises conductive knife sharpening device, and conductive knife sharpening device is accurate by slow feeding linear cutting bed by conductive metal material
Cutting processing forms, and has one section of taper circular arc on conductive knife sharpening device, precision is up to 0.001mm, copper base diamond pot mill
Head is fed to taper circular arc while rotating, can replicate conductive knife sharpening device circular arc by the principle that precision ECM is processed
Precision.In the online precision ECM finishing of composite cathode, copper base diamond spherical mounted point connects the anode of direct current pulse power source, conductive
Knife sharpening device connects the cathode of the stream pulse power, and working solution sprays between copper base diamond spherical mounted point and conductive knife sharpening device circular arc
Gap, copper base diamond spherical mounted point are fed to taper circular arc while rotating, the principle copper base diamond based on anodic solution
Spherical mounted point is trimmed, and conductive knife sharpening device arc section is lossless as cathode, can reuse for a long time.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.It is all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of spherical mounted point electrolytic dressing device, described device is used to modify the bulb (4-1) of composite cathode (4),
It is characterized in that:Described device includes conductive sharpening block (2), is connected between the composite cathode (4) and conductive sharpening block (2)
The pulse power (3), the composite cathode (4) connect the anode of the pulse power (3), and conductive sharpening block (2) connects the negative of the pulse power (3)
Pole is provided with circular arc camber (2-1) on conduction sharpening block (2), and the circular arc camber (2-1) is prolonged along conductive sharpening block (2)
Stretch out different radii arc surface.
2. a kind of spherical mounted point electrolytic dressing device according to claim 1, it is characterised in that:Circular arc camber (the 2-
It 1) is conical circular arc camber.
3. a kind of spherical mounted point electrolytic dressing device according to claim 1, it is characterised in that:The conduction sharpening block
(2) it is set on platen (1).
4. a kind of spherical mounted point electrolytic dressing device according to claim 3, it is characterised in that:The Y of conductive sharpening block (2)
Direction is parallel with the Y-axis of lathe, and the X-direction of conductive sharpening block (2) is parallel with the X-axis of lathe.
5. a kind of spherical mounted point electrolytic dressing device according to claim 4, it is characterised in that:The circle along the y-axis direction
The arc radius of arc surface (2-1) gradually becomes smaller, and forms conical circular arc camber.
6. a kind of spherical mounted point electrolytic dressing device according to claim 1, it is characterised in that:Containing the circular arc camber
The conductive sharpening block (2) of (2-1) is processed by unitary conductive material by low-speed WEDM.
7. a kind of spherical mounted point electrolytic dressing device according to claim 1, it is characterised in that:The bulb (4-1) is
Copper base diamond material.
8. a kind of spherical mounted point electrolytic dressing method, which is characterized in that including:
To knife:The lowest part of the bulb (4-1) of composite cathode (4) is moved to the k level position of conductive sharpening block (2), is made
The minimum point of the bulb (4-1) of composite cathode (4) is located at interval above plane;
It whets a knife:Composite cathode (4) is mobile to circular arc camber (2-1) in X-direction, while in bulb (4-1) and conductive sharpening block
(2) working solution (5) are sprayed between circular arc camber (2-1), are rotated composite cathode (4);
The selection of sharpening position:In forming finishing processing, as composite cathode (4) is trimmed, the radius of bulb (4-1) subtracts
Small, the arc radius of the circular arc camber (2-1) of conductive sharpening block (2) is opposite to be increased, and dressing accuracy is lost, at this point, by compound yin
Pole (4) is moved along Y-direction, selects new sharpening position.
9. a kind of spherical mounted point electrolytic dressing method according to claim 8, it is characterised in that:During knife, make multiple
The minimum point for closing the bulb (4-1) of cathode (4) is located above plane at 0.1mm.
10. a kind of spherical mounted point electrolytic dressing method according to claim 8, it is characterised in that:Composite cathode (4) is in X
The amount of movement of axis direction is the trim amount of the bulb (4-1) of composite cathode (4), and in numerical control programming, the trim amount is to ball
The radius of head (4-1) is biased compensation.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1509249A (en) * | 1974-08-01 | 1978-05-04 | Skf Ind Trading & Dev | Method for producing an electrode head for use in electro-chemical machining processes |
CN101856800A (en) * | 2010-05-10 | 2010-10-13 | 北京兴华机械厂 | Electrolytic in-process dressing device of concave spherical surface of spherical coupling |
CN205096664U (en) * | 2015-11-24 | 2016-03-23 | 山东大学(威海) | High gyration precision bulb cylindrical electrode's online preparation trimming device |
CN107030343A (en) * | 2017-06-09 | 2017-08-11 | 常州工学院 | Bulb composite cathode restoring on line device and its application method |
-
2018
- 2018-07-20 CN CN201810802106.1A patent/CN108907377A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1509249A (en) * | 1974-08-01 | 1978-05-04 | Skf Ind Trading & Dev | Method for producing an electrode head for use in electro-chemical machining processes |
CN101856800A (en) * | 2010-05-10 | 2010-10-13 | 北京兴华机械厂 | Electrolytic in-process dressing device of concave spherical surface of spherical coupling |
CN205096664U (en) * | 2015-11-24 | 2016-03-23 | 山东大学(威海) | High gyration precision bulb cylindrical electrode's online preparation trimming device |
CN107030343A (en) * | 2017-06-09 | 2017-08-11 | 常州工学院 | Bulb composite cathode restoring on line device and its application method |
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