CN1032633A - Multifunction plate-cutting machine with electrosparking cutting disk - Google Patents
Multifunction plate-cutting machine with electrosparking cutting disk Download PDFInfo
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- CN1032633A CN1032633A CN 88109689 CN88109689A CN1032633A CN 1032633 A CN1032633 A CN 1032633A CN 88109689 CN88109689 CN 88109689 CN 88109689 A CN88109689 A CN 88109689A CN 1032633 A CN1032633 A CN 1032633A
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- lath cutter
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Abstract
A kind of multifunction plate-cutting machine with electrosparking cutting disk provided by the invention, mainly partly form by cutting plate tool electrode, cutting axis, electrical conduction current device, electrical quantity adjuster, coolant system and cutting power supply etc., be characterized in utilizing the cutting plate tool electrode of rotation at a high speed and the galvano-cautery phenomenon that the interpolar discharge between the workpiece produces, the corrosion resistant plate of 1 to 6 millimeters thick and the non-ferrous metal board and the various steel sash of 1 to 10 millimeters thick are carried out cutting processing.Change hard alloy saw blade, can also cut various soft metals and nonmetal plate.Outstanding advantage is: joint-cutting is narrower, and otch fineness is higher, and the heat-affected zone is less.
Description
The invention belongs to the spark erosion technique field.
Spark machined is that the galvano-cautery phenomenon that produces when utilizing the discharge of two interpolars is carried out method for processing to metal material.At present both at home and abroad the most frequently used method of cutting metal material is: the air plasma arc cutting etc. of contracting of flame cutting, Wire EDM, hydraulic pressure.Wherein the flame cutting is used more extensive at home.The advantage of flame cutting is that equipment is simple, easy to operate, the cutting thickness scope is wider, is particularly useful for carbon steel and the low Jin Gang that contains.The shortcoming of flame cutting is the joint-cutting broad, and the otch burr is big and coarse, and the heat-affected zone is big, metallographic structure is subjected to heavy damage and is difficult to recovering, need secondary operations in many cases, not only expend man-hour but also waste raw material, be used for very difficulty of cutting stainless steel and non-ferrous metal.The advantage of Wire EDM is that joint-cutting is very narrow, and kerf quality is very high, and the heat-affected zone is less, but its shortcoming is that range of application is restricted, and is mainly used in cutting die and some parts that the size essence is little, complex-shaped, material is special; Another shortcoming is the electric spark linear cutting machine complex structure, and cost is higher, is not suitable in small-sized factories and miness and township enterprise's extensive use.The contract advantage of arc of recess such as air cutting of hydraulic pressure is that range of application is wider, but its shortcoming is the joint-cutting broad, otch fineness extreme difference, and the groove phenomenon that occurs wide at the top and narrow at the bottom, the heat-affected zone is also bigger, also to carry out secondary operations in the occasion that many precision prescribeies are higher, carbon electrode consumption is too fast too many in cutting process, often change, it needs high-pressure air source and a large amount of cooling fluids simultaneously, not only complex operation, and cutting cost is higher, also is less compliant in small-sized factories and miness and township enterprise's extensive use.
From the retrieval situation, the electric spark cutter sweep that domestic and international 125 kinds of representative patent documentations were introduced over 25 years in 1963 to 1988 all is to adopt wire electrode as tool-electrode.Wire electrode moves with certain speed in cutting process, one side continuously from the entering and coming out from the another side of region of discharge of region of discharge, and in liquid medium, cut.For example, Japan Patent JP59-42223 8504472.All plasma arc cutting equipment all are to adopt the nozzle-type stick electrode as tool-electrode, stick electrode keeps concentric with nozzle bore is strict in cutting process, be maintained fixed the gap between nozzle and the workpiece, and in this gap, form electric arc, realize cutting metal.For example, U.S. Pat 3567898.Never found to adopt the Metal Cutting technology or the equipment of the cutting blade of rotation at a high speed as tool-electrode.
The purpose of this invention is to provide the multi-functional lath cutter of a kind of electric spark cutting plate tool electrode, be widely used in cutting non-ferrous metal board and corrosion resistant plate, and have the overall merit of prior art and overcome the major defect of prior art.
The chief component of multifunction plate-cutting machine with electrosparking cutting disk provided by the invention is seen shown in the accompanying drawing.Wherein 1 is threephase asynchronous, and 4 kilowatts of Revolution Per Minutes of power 2950 change, and are used for cutting power.The 2nd, cutting axis has the double action of transferring power and conduction cutting current.The 3rd, the electrical conduction current device mainly is made up of copper sheathing and carbon brush.Copper sheathing is contained in the inner end of cutting axis, have higher concentricity and
7Above fineness.Copper sheathing length is 40 to 70 millimeters, and there are two or three conduction carbon brush in the outside, with the copper sheathing contact area be 3000 to 4000 square millimeters, and contact is good.Carbon brush is connected to of cutting power supply 5 by cable and extremely goes up.Another utmost point of cutting power supply is connected to and is cut on the metallic plate.Cutting power supply can be a dc source, also can be the pulse power, 60 to 1600 volts of output voltages.The 4th, cutting blade, it is the most important part of this cutter, also is one of key problem in technology of the present invention, it is installed in the other end of cutting axis.The 6th, the electrical quantity adjuster, can be in 30 to 210 peace scopes the size of step-less adjustment cutting current, satisfy the cutting specification requirement.The 7th, coolant system in cutting process, continuously to cutting blade rear portion spray cooling fluid, makes the cutting blade radiating and cooling, simultaneously otch is in time cooled off.The 8th, bearing block has two, is fixedly mounted on the insulating base of insulation jigger 9, and cutting axis just is contained on these two bearing blocks.The 10th, the guiding clamping plate has two, and an end is contained on the base plate of insulation jigger, and the other end is connected with directive wheel 11, and its effect is to keep straight path when making jigger 9 along track 12 walkings, guarantees that joint-cutting is a straight line.
Lath cutter operating process of the present invention is: at first actuating motor (just changeing) makes cutting blade reach rated speed.Restart coolant pump, make it enough cooling fluids and continuously spray on cutting blade rear portion and the slot.And then the startup A.C. contactor, regulate the electric current that the electrical quantity adjuster makes it to reach the cutting specification requirement after the power supply operate as normal to be cut, can begin cutting.Want strict control feed velocity in the cutting process.Work finishes, and the shutdown order is opposite with start process.Must turn off all power supplys at last.
From the result of use of this lath cutter, with the air plasma arc cutting contrast of contracting of flame cutting, Wire EDM, hydraulic pressure, have this lath cutter joint-cutting of many outstanding advantages have only 2 to 3 millimeters anger zinc annotate Tun flesh yarn mace
2～3, the heat affected area is very little, does not generally need secondary operations.Save raw material, tool electrode loss is very little, and cooling fluid is inexpensive and consumption is less.Not only be widely used the various non-ferrous metal boards of cutting 1 to 10 millimeters thick and the corrosion resistant plate of 1 to 6 millimeters thick.Can also cut various steel sashes, can also cut soft metal and various nonmetallic materials after using the hard alloy cutting saw blade instead, kerf quality substantially exceeds electric saw for woodworking.This machine cost has only 1/8th of spark-erosion machine tool.Complete machine weight has only 70 kilograms, and flexible operation is easy to use.Therefore be well suited for being extensive use of at small-sized factories and miness and township enterprise.
Embodiments of the invention mainly contain following several respects:
The firstth, the material mixture ratio of cutting blade and sized data.Have at least following 6 kinds of alloys to manufacture.Cutting blade of the present invention, its material mixture ratio is respectively:
1. molybdenum and tungsten alloy (9: 1),
2. molybdenum silver (3: 2),
3. copper-tungsten (4: 1),
4. copper molybdenum alloy (7: 3),
5. silver-colored hafnium alloy (3: 2),
6. brass tungsten alloy (4: 1).
The thickness of these 6 kinds of cutting blades is 1 to 1.5 millimeter, and diameter is 150 to 300 millimeters, and the present invention has selected 250 millimeters for use.
The secondth, the cutting technique parameter.Be divided into electrical quantity and cutting parameter again.The present invention has selected for use the also available electric welding dc source of plasma power supply to select 30 to 210 peaces for use as the cutting power supply working power, and operating voltage is selected 60 to 260 volts for use, also can select 1000 to 1600 volts the pulse power for use, can further improve cutting speed.Cutting parameter mainly is the tangential velocity and the cutting speed (being feed velocity) of cutting blade.The tangential velocity of the cutting blade of above-mentioned six kinds of materials that the present invention adopts is 46 to 92 meters of per seconds (being equivalent to per minute 3500 to 7000 changes).Ultrahigh rotating speed is used to be cut with non-ferrous metal and corrosion resistant plate also can be cut soft metal sheet.If change hard metal tip, can cut soft metal and non-metal board.Cutting speed is relevant with sheet metal thickness, cuts 3 meters/minute of the corrosion resistant plates of 1 millimeters thick, cuts 0.3 meter/minute of the corrosion resistant plate of 6 millimeters thick.Ultrahigh speed cutting non-ferrous metal board, low speed cutting non-metal plate.
The 3rd is cooling fluid.The present invention has prepared three kinds of cooling fluids, is respectively applied for three kinds of different situations.Its prescription is respectively:
1. ionized water 0.5%, saponification liquor 1%, distilled water 98.5%.
Be used for cutting stainless steel plate and non-ferrous metal board, the occasion of having relatively high expectations.
2. saponification liquor 0.5%, distilled water 99.5%.
Be used to cut general alloy, require not too high occasion.
3. saponification liquor 0.5%, light water 99.5%.
The occasion that is used for the hard alloy saw blade cutting non-metal.
Claims (6)
1, a kind of galvano-cautery that produces when utilizing between two electrodes discharge and metal material is carried out the electric spark lath cutter of cutting processing, it is characterized in that adopting the cutting blade of per minute 3500 to 7000 commentaries on classics as tool-electrode, this cutting blade is contained in the outward extending end of cutting axis, the other end of this cutting axis is equipped with a copper sheathing, there are two or three conduction carbon brush in the copper sheathing outside, copper sheathing contacts with carbon brush comprehensively, constitute the electrical conduction current device, carbon brush is received of cutting power supply by cable and is extremely gone up, being cut metal receives another and extremely goes up, the power consumption parameter adjuster is regulated the output current of cutting power supply, make it to be fit to cutting specification, in cutting process, continuously spray cooling fluid to the cutting blade rear portion of rotation at a high speed by cooling system.
2, according to the said lath cutter of claim 1, it is characterized in that cutting plate tool electrode is a thin rounded flakes, its diameter is 150 to 300 millimeters, and thickness is 1 to 1.5 millimeter, and it can be made of following six kinds of alloys at least, and material mixture ratio is respectively:
1. molybdenum and tungsten alloy (9: 1),
2. molybdenum silver (3: 1),
3. copper-tungsten (4: 1),
4. copper molybdenum alloy (7: 3),
5. silver-colored hafnium alloy (3: 2),
6. brass tungsten alloy (4: 1).
3, according to the said lath cutter of claim 1, the copper sheathing that it is characterized in that the electrical conduction current device is 40 to 70 millimeters, and surface smoothness exists
7More than, and concentric with cutting axis, with the contact area of carbon brush be 3000 to 4000 square millimeters.
4, according to the said lath cutter of claim 1, it is characterized in that the electrical quantity adjuster can step-less adjustment, cutting current is 30 to 210 peaces.
5, according to the said lath cutter of claim 1, it is characterized in that the both available dc source of cutting power supply, the available again pulse power, output voltage are 60 to 1600 volts.
6,, it is characterized in that the cooling liquid formulation that cooling system is used has following three kinds at least according to the said lath cutter of claim 1:
1. ionized water 0.5%, saponification liquor 1%, and distilled water 98.5%,
2. saponification liquor 0.5%, distilled water 99.5%,
3. saponification liquor 0.5%, light water 99.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109689 CN1008891B (en) | 1988-11-02 | 1988-11-02 | Multifunction plate-cutting machine with electrosparking cutting disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88109689 CN1008891B (en) | 1988-11-02 | 1988-11-02 | Multifunction plate-cutting machine with electrosparking cutting disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032633A true CN1032633A (en) | 1989-05-03 |
| CN1008891B CN1008891B (en) | 1990-07-25 |
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ID=4835416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88109689 Expired CN1008891B (en) | 1988-11-02 | 1988-11-02 | Multifunction plate-cutting machine with electrosparking cutting disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008891B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335217C (en) * | 2005-06-30 | 2007-09-05 | 上海交通大学 | Metal hydro-electric cutting method |
| CN103495782A (en) * | 2013-09-30 | 2014-01-08 | 胜利油田康贝石油工程装备有限公司 | Device and method for electric machining with circular electrode and ultrasonic wave used for cutting |
| CN105478938A (en) * | 2015-11-23 | 2016-04-13 | 芜湖楚江合金铜材有限公司 | Soft silver layer plated high-precision copper alloy wire and manufacturing method thereof |
| CN107433372A (en) * | 2017-09-19 | 2017-12-05 | 南通市中京机械有限公司 | The preparation method of aluminium sheet |
-
1988
- 1988-11-02 CN CN 88109689 patent/CN1008891B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335217C (en) * | 2005-06-30 | 2007-09-05 | 上海交通大学 | Metal hydro-electric cutting method |
| CN103495782A (en) * | 2013-09-30 | 2014-01-08 | 胜利油田康贝石油工程装备有限公司 | Device and method for electric machining with circular electrode and ultrasonic wave used for cutting |
| CN105478938A (en) * | 2015-11-23 | 2016-04-13 | 芜湖楚江合金铜材有限公司 | Soft silver layer plated high-precision copper alloy wire and manufacturing method thereof |
| CN107433372A (en) * | 2017-09-19 | 2017-12-05 | 南通市中京机械有限公司 | The preparation method of aluminium sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1008891B (en) | 1990-07-25 |
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