CN101264537A - Electric spark truing method for complex surface metallic anchoring agent diamond wheel - Google Patents
Electric spark truing method for complex surface metallic anchoring agent diamond wheel Download PDFInfo
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- CN101264537A CN101264537A CNA2008100614084A CN200810061408A CN101264537A CN 101264537 A CN101264537 A CN 101264537A CN A2008100614084 A CNA2008100614084 A CN A2008100614084A CN 200810061408 A CN200810061408 A CN 200810061408A CN 101264537 A CN101264537 A CN 101264537A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 12
- 239000010432 diamond Substances 0.000 title claims abstract description 12
- 238000004873 anchoring Methods 0.000 title claims description 10
- 239000003795 chemical substances by application Substances 0.000 title claims description 10
- 238000010892 electric spark Methods 0.000 title claims description 10
- 238000007493 shaping process Methods 0.000 claims abstract description 140
- 230000007704 transition Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003595 mist Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 230000008439 repair process Effects 0.000 claims description 4
- 238000012549 training Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 6
- 239000007767 bonding agent Substances 0.000 abstract 2
- 229910001651 emery Inorganic materials 0.000 description 13
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to an electrical spark shaping method of complicated profile metal bonding agent diamond grinding wheel, which comprises the following steps: (1) according to the forming method, producing electrical spark precise shaping tool electrode; (2) dividing the shaping procedure into a pre-shaping stage, a transition shaping stage, a fast shaping stage, a semi-precision shaping stage, and a precise shaping stage; selecting the pulse electrical parameter and the feed rate corresponding to each stage; the pulse electrical parameters comprise a shaping current and a shaping voltage, the medium is water or high pressure water mist, and the discharge gap is controlled to 0.005 to 0.02mm. The electrical spark shaping method of complicated profile metal bonding agent diamond grinding wheel has the advantages of high efficiency and high machining accuracy.
Description
Technical field
The present invention relates to the shaping process of metal anchoring agent diamond wheel.
Background technology
At present, as a guardian technique difficult problem in the precision grinding machining field, the complex profile metal anchoring agent diamond wheel develops towards further complexity, direction that dimensional requirement is higher, traditional machining process can not adapt to such processing already, occurred the electric spark precision truing process thereupon, can obtain the high-precision shaping effect of high efficiency with this process.
Summary of the invention
For the deficiency that working (machining) efficiency is low, precision is not high of the shaping process that overcomes existing metal anchoring agent diamond wheel, the invention provides the electric discharge dressing method of a kind of working (machining) efficiency height, complex profile metal anchoring agent diamond wheel that precision is high.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of electric discharge dressing method of complex profile metal anchoring agent diamond wheel, described shaping methods may further comprise the steps:
(1), makes the electric spark precision truing tool-electrode according to form cutting;
(2), the shaping stage is divided into: pre-shaping stage, transition shaping stage, rapid shaping stage, half finishing shape stage, finishing shape stage; Select each corresponding corresponding Pulse Electric parameter of stage and feed speed, the Pulse Electric parameter comprises shaping electric current and shaping voltage, and media is water or high-pressure water mist, and the control discharging gap is 0.005～0.02mm.
As preferred a kind of scheme: in described step (2), described shaping current range: 0～I
MaxA, I
MaxBe maximum current; Described shaping voltage: U
MinAnd U
Max, U
MinBe small voltage, U
MaxBe big voltage; Whole training time is t; The shaping amount of feeding altogether is L; Maximum each amount of feeding is V.The shaping voltage in pre-shaping stage is U
Min, the shaping maximum current is I
Max/ 4, each feeding V/2 repairs time spent t/3 in advance, and this stage is feeding L/3 altogether; Shaping voltage was U when the transition shaping stage began
Min, the shaping maximum current is I
Max/ 3, each amount of feeding is 2V/3, improves the shaping electric current gradually, when the amount of feeding reaches L/2, strengthens voltage to U
Max, transition shaping time spent t/3, this stage is feeding L/4 altogether; The shaping voltage in rapid shaping stage is U
Max, the shaping electric current is I
Max, each amount of feeding is V, rapid shaping time spent t/5, and this stage is feeding L/4 altogether; The initial shaping voltage in half finishing shape stage is U
Min, initial shaping electric current is 2/3I
Max, and progressively reduce the shaping electric current to I
Max/ 3, each amount of feeding is V/5, half finishing shape time spent t/10, and this stage is feeding L/10 altogether; The shaping voltage in finishing shape stage is U
Min, the shaping electric current gradually reduces I
MaxBelow/12, each amount of feeding is V/5, finishing shape time spent t/20, and this stage is feeding L/40 altogether.
Technical conceive of the present invention is: the present invention realizes following process, utilizes form cutting to make the electric spark precision truing tool-electrode; Formulate processing pulse parameter and operation stage according to the emery wheel profile of wanting shaping: shaping electric current: 0-6A; Shaping voltage: 120V, 160V; Media: water, high-pressure water mist; Operation stage generally is divided into pre-shaping stage, transition shaping stage, rapid shaping stage, half finishing shape stage, finishing shape stage; Select each corresponding corresponding pulse parameter of stage and feed speed; The control discharging gap: discharging gap is controlled to be 0.005～0.02mm; Select the rational shaping feed speed and the degree of depth; Reduced the technology difficulty of electric spark precision truing, gone out to have the emery wheel of complex profile in shaping, the shaping process index has reached higher level.
Beneficial effect of the present invention mainly shows: 1, working (machining) efficiency height, precision height; 2, technology is simple.
Description of drawings
Fig. 1 is a design hard alloy cutter design drawing.
Fig. 2 is the tool-electrode design drawing that utilizes the form cutting design.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1～Fig. 2, a kind of electric discharge dressing method of complex profile metal anchoring agent diamond wheel, described shaping methods may further comprise the steps:
(1), makes the electric spark precision truing tool-electrode according to form cutting;
(2), the shaping stage is divided into: pre-shaping stage, transition shaping stage, rapid shaping stage, half finishing shape stage, finishing shape stage; Select each corresponding corresponding Pulse Electric parameter of stage and feed speed, the Pulse Electric parameter comprises shaping electric current and shaping voltage, and media is water or high-pressure water mist, and the control discharging gap is 0.005～0.02mm.
In described step (2), described shaping current range: 0～I
MaxA, I
MaxBe maximum current; Described shaping voltage: U
MinAnd U
Max, U
MinBe small voltage, U
MaxBe big voltage; Whole training time is t; The shaping amount of feeding altogether is L; Maximum each amount of feeding is V.The shaping voltage in pre-shaping stage is U
Min, the shaping maximum current is I
Max/ 4, each feeding V/2 repairs time spent t/3 in advance, and this stage is feeding L/3 altogether; Shaping voltage was U when the transition shaping stage began
Min, the shaping maximum current is I
Max/ 3, each amount of feeding is 2V/3, improves the shaping electric current gradually, when the amount of feeding reaches L/2, strengthens voltage to U
Max, transition shaping time spent t/3, this stage is feeding L/4 altogether; The shaping voltage in rapid shaping stage is U
Max, the shaping electric current is I
Max, each amount of feeding is V, rapid shaping time spent t/5, and this stage is feeding L/4 altogether; The initial shaping voltage in half finishing shape stage is U
Min, initial shaping electric current is 2/3I
Max, and progressively reduce the shaping electric current to I
Max/ 3, each amount of feeding is V/5, half finishing shape time spent t/10, and this stage is feeding L/10 altogether; The shaping voltage in finishing shape stage is U
Min, the shaping electric current gradually reduces I
MaxBelow/12, each amount of feeding is V/5, finishing shape time spent t/20, and this stage is feeding L/40 altogether.
The process tool of present embodiment is to carry out electric spark precision truing on the MM7120A precision surface grinding machine with horizontal spindle and rectangular table in model as shown in Figure 1, and the process step is as follows:
Step 1: make the electric spark precision truing tool-electrode according to form cutting, as shown in Figure 2, and when all stages are shared 2750 minutes, feeding 2.5mm altogether, the fastest feeding speed is each 5um;
Step 2: pre-shaping stage
The pre-shaping stage mainly is the marginal portion of removing emery wheel, and will guarantee that tool electrode loss reaches minimum, if tool electrode loss is very big, will influence ensuing emery wheel dressing precision, so must reduce the energy of individual pulse discharge.In this stage, because the corner angle of workpiece (emery wheel) are outstanding, with the relative area little (only being two parallel lines) of electrode, point discharge phenomenon is more serious, in order to reduce the loss of tool-electrode, shaping voltage in the pre-shaping stage is 120V, and the shaping maximum current is controlled in the 1.5A, the strict control amount of feeding, but fast feed, but at every turn can only feeding 2.5um, repair the time spent 900 (± 10min) min, amount of feeding 0.9mm altogether in advance;
Step 3: transition shaping stage
The transition shaping stage is connected pre-shaping stage and rapid shaping stage, relative area between emery wheel and tool-electrode becomes big gradually at this moment, therefore can satisfy under the prerequisite of shaping quality, improve shaping efficient as far as possible, half finishing has improved electrical quantity with respect to pre-shaping, shaping voltage is 120V during beginning, the shaping electric current is 2A, electric discharge dressing efficient is compared the pre-shaping stage and is improved, so each feeding can be brought up to 3.3um, improves the shaping electric current simultaneously gradually, when wheel face quilt ablation gradually, when working depth proceeded to 1.2 millimeter, the relative area of emery wheel and electrode had been two faces, and relative area is bigger.Spark discharge in this time is stable, electric spark is oblique line shape, effect is relatively good, can consider that strengthening voltage processes to 160V this time, the corresponding amount of feeding also can be suitable increase to 3.3um, enter the rapid shaping stage this moment, transition shaping time spent in stage 900 (± 10min) min, feeding 0.64mm altogether;
Step 4: rapid shaping stage
The rapid shaping stage, it also is the thick shaping stage, because this moment, the surface of emery wheel was shaped substantially, so mainly be in order to reduce deviation from circular from and to remove the cast iron adhesive fast, accurate according to this experiment rapid shaping rule, the setting shaping voltage is 160V, and the shaping electric current is 6A, and each feeding is 0.5um.When the spark that spills when processing becomes two crossing spark lines, illustrate that emery wheel is shaped, entered for half finishing shape stage this moment, the time in rapid shaping stage is 540 (± 10min) min, feeding 0.58mm altogether;
Step 5: half finishing shape stage
Half finishing shape mainly is because at rapid shaping during the stage, the shaping of the whole wide types of emery wheel is come out, mainly in order to guarantee the surface roughness of emery wheel, so change electrical guiding rule.Half finishing shape is the transition stage in rapid shaping stage and finishing shape stage, the setting shaping voltage is 160V, the shaping electric current is reduced to 4A, lower simultaneously the shaping electric current gradually, up to shaping voltage is 120V, and the shaping electric current is reduced to 2A, and each feeding is strict controlled in 0.1um, half finishing shape time spent in stage 270 (± 10min) min, feeding 0.28mm altogether;
Step 6: finishing shape stage
In order to continue to improve the precision truing precision of emery wheel, electric discharge dressing enters the last stage, i.e. the finishing shape stage, in order to improve the emery wheel dressing precision, reduce discharge trace diameter, just reduce the energy of individual pulse discharge, realize by reducing the shaping electric current, feeding slightly simultaneously, each feeding is controlled at 0.1um, and the setting shaping voltage is 120V, allows the shaping electric current be reduced to below the 0.5A gradually, finishing shape time spent in stage 140 (± 5min) min, feeding 0.02mm altogether.
Claims (2)
1, a kind of electric discharge dressing method of complex profile metal anchoring agent diamond wheel, it is characterized in that: described shaping methods may further comprise the steps:
(1), makes the electric spark precision truing tool-electrode according to form cutting;
(2), the shaping stage is divided into: pre-shaping stage, transition shaping stage, rapid shaping stage, half finishing shape stage, finishing shape stage; Select each corresponding corresponding Pulse Electric parameter of stage and feed speed, the Pulse Electric parameter comprises shaping electric current and shaping voltage, and media is water or high-pressure water mist, and the control discharging gap is 0.005～0.02mm.
2, the electric discharge dressing method of complex profile metal anchoring agent diamond wheel as claimed in claim 1 is characterized in that: in described step (2), and described shaping current range: 0～I
MaxA, I
MaxBe maximum current, described shaping voltage: U
MinAnd U
Max, U
MinBe small voltage, U
MaxBe big voltage, whole training time is t, and the shaping amount of feeding altogether is L, and maximum each amount of feeding is V; The shaping voltage in pre-shaping stage is U
Min, the shaping maximum current is I
Max/ 4, each feeding V/2 repairs time spent t/3 in advance, and this stage is feeding L/3 altogether; Shaping voltage was U when the transition shaping stage began
Min, the shaping maximum current is I
Max/ 3, each amount of feeding is 2V/3, improves the shaping electric current gradually, when the amount of feeding reaches L/2, strengthens voltage to U
Max, transition shaping time spent t/3, this stage is feeding L/4 altogether; The shaping voltage in rapid shaping stage is U
Max, the shaping electric current is I
Max, each amount of feeding is V, rapid shaping time spent t/5, and this stage is feeding L/4 altogether; The initial shaping voltage in half finishing shape stage is U
Min, initial shaping electric current is 2/3I
Max, and progressively reduce the shaping electric current to I
Max/ 3, each amount of feeding is V/5, half finishing shape time spent t/10, and this stage is feeding L/10 altogether; The shaping voltage in finishing shape stage is U
Min, the shaping electric current gradually reduces I
MaxBelow/12, each amount of feeding is V/5, finishing shape time spent t/20, and this stage is feeding L/40 altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100614084A CN101264537A (en) | 2008-05-09 | 2008-05-09 | Electric spark truing method for complex surface metallic anchoring agent diamond wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100614084A CN101264537A (en) | 2008-05-09 | 2008-05-09 | Electric spark truing method for complex surface metallic anchoring agent diamond wheel |
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| CN101264537A true CN101264537A (en) | 2008-09-17 |
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| CNA2008100614084A Pending CN101264537A (en) | 2008-05-09 | 2008-05-09 | Electric spark truing method for complex surface metallic anchoring agent diamond wheel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433583A (en) * | 2013-09-06 | 2013-12-11 | 福耀玻璃（重庆）配件有限公司 | Tool electrode assembly and grinding wheel repair machine |
| CN111230761A (en) * | 2020-03-03 | 2020-06-05 | 沈阳工业大学 | Grinding wheel manufacturing method and device for chamfering silicon wafer |
| CN111515482A (en) * | 2020-04-27 | 2020-08-11 | 北京工业大学 | Metal-based grinding wheel precision forming and shaping method |
| CN112454171A (en) * | 2020-12-04 | 2021-03-09 | 郑州磨料磨具磨削研究所有限公司 | Method and device for dressing superhard material grinding wheel |
-
2008
- 2008-05-09 CN CNA2008100614084A patent/CN101264537A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433583A (en) * | 2013-09-06 | 2013-12-11 | 福耀玻璃（重庆）配件有限公司 | Tool electrode assembly and grinding wheel repair machine |
| CN103433583B (en) * | 2013-09-06 | 2015-10-28 | 福耀玻璃（重庆）配件有限公司 | Tool-electrode assembly and emery wheel repair machine |
| CN111230761A (en) * | 2020-03-03 | 2020-06-05 | 沈阳工业大学 | Grinding wheel manufacturing method and device for chamfering silicon wafer |
| CN111515482A (en) * | 2020-04-27 | 2020-08-11 | 北京工业大学 | Metal-based grinding wheel precision forming and shaping method |
| CN112454171A (en) * | 2020-12-04 | 2021-03-09 | 郑州磨料磨具磨削研究所有限公司 | Method and device for dressing superhard material grinding wheel |
| CN112454171B (en) * | 2020-12-04 | 2022-03-01 | 郑州磨料磨具磨削研究所有限公司 | Method and device for dressing superhard material grinding wheel |
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Open date: 20080917 |