CN114226885A - Electric spark integrated machining quick-change device and method for multi-hole series communication hole - Google Patents
Electric spark integrated machining quick-change device and method for multi-hole series communication hole Download PDFInfo
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- CN114226885A CN114226885A CN202111680250.0A CN202111680250A CN114226885A CN 114226885 A CN114226885 A CN 114226885A CN 202111680250 A CN202111680250 A CN 202111680250A CN 114226885 A CN114226885 A CN 114226885A
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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
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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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of electromachining processes, in particular to a device and a method for quickly changing a multi-hole series communication hole through electric spark integrated machining, wherein the device comprises a bottom plate, an adapter plate and a limiting block; the bottom plate is of a plate body structure, a square inner groove is formed in the middle of the bottom plate, and at least one groove is formed in the edge of the square inner groove; the adapter plate is of a plate body structure, a male die is arranged in the middle of the adapter plate, a cross groove is formed in the male die, and a groove of the base plate is in clearance fit with the male die of the adapter plate; the invention discloses a multi-hole workpiece oil channel groove through hole electric spark integrated machining method, which is characterized in that a limiting block is of a plate body structure and is in clearance fit with a cross groove of a male die of an adapter plate to fix the adapter plate.
Description
Technical Field
The invention relates to the technical field of electromachining processes, in particular to a device and a method for quickly and integrally machining a multi-hole series communication hole by electric sparks.
Background
At present, the multi-hole series workpiece belongs to the characteristics of multiple varieties and small batch, the internal structure is complex, the requirement on form and position precision is high, and the internal cavity, the hole series and the oil circuit are various. The oil-way communication holes between each working hole system and the hole system in some porous workpieces are as many as hundreds, and the cross sections of the porous workpieces have circular, rectangular and kidney-shaped shapes and different angles. Due to the structural space limitation, the oil passage groove through holes can only be processed on an electric spark machine tool.
The traditional machining method in the industry is to install and position a workpiece through dozens of hundreds of sets of combined clamps or special clamps and to manufacture more machining electrodes with different shapes, only one communication electric spark hole can be machined by one-time clamping, and the machining efficiency is very low; meanwhile, limited working time is greatly consumed on the factors of workpiece replacement, electrode manufacturing, electrode alignment, electrode discharge loss correction, product detection and the like, so that the equipment is long in shutdown waiting time, and the equipment utilization rate is very low.
The multi-hole workpiece oil passage communication hole has high requirements on the skill level and the responsibility of a processing operator and an inspector, the batch quality problem can be caused as long as the angle and the position of one hole are wrong, the workpiece processing period is long, the electric spark processing is generally arranged at the tail end of the whole workpiece manufacturing process, and once batch quality accidents occur, the labor cost, the economic cost and the time cost are too high.
Disclosure of Invention
The purpose of the invention is as follows: a device and a method for quickly changing a multi-hole communication hole through electric spark integrated machining are provided, so that the machining efficiency, the equipment utilization rate and the product percent of pass of workpieces are improved.
The technical scheme of the invention is as follows:
a multi-hole series communication hole electric spark integrated processing quick change device comprises a bottom plate, an adapter plate and a limiting block;
the bottom plate is of a plate body structure, a square inner groove is formed in the middle of the bottom plate, and at least one groove is formed in the edge of the square inner groove;
the adapter plate is of a plate body structure, a male die is arranged in the middle of the adapter plate, a cross groove is formed in the male die, and a groove of the base plate is in clearance fit with the male die of the adapter plate;
the limiting block is of a plate body structure and is in clearance fit with the cross groove of the convex die of the adapter plate to fix the adapter plate.
Preferably, the device also comprises a pin which passes through an inner hole on the limiting block to be matched with the threaded hole of the bottom plate, so that the bottom plate and the limiting block are fixed.
Preferably, the pin is a revolution body structure, and a threaded rod is axially arranged and penetrates through an inner hole in the limiting block to be matched with a threaded hole in the bottom plate.
Preferably, the bottom plate is provided with two blind rivet holes for installing the centering blind rivet and the directional blind rivet, and the centering blind rivet and the directional blind rivet are locked by a zero positioning system on the working table of the electric spark equipment, so that the centering and directional processing of the workpiece is realized.
Preferably, two positioning holes are formed in the bottom plate and are in clearance fit with positioning pins on the manipulator, and the manipulator is stabilized to automatically transfer and process workpieces.
Preferably, the groove of the bottom plate and the male die of the adapter plate are of a face-to-face joint tenon-and-mortise structure.
Preferably, the mortise and tenon structure is a dovetail structure or a key slot structure.
Preferably, the adapter plate is provided with a positioning pin hole and a mounting hole for mounting a machined workpiece or connecting the adapter plate suitable for different types of workpieces.
A method for using a quick-change device for electric spark integrated machining of a porous communication hole comprises the following steps:
step 1: making a processing electrode by tabulating the specification and dimension statistics of the oil channel ditch through holes of the porous workpiece, and grouping the same specification;
step 2: setting electric machining parameters according to the specification requirements of the oil way communication hole and the discharge gap, and compiling an electric spark integrated machining program;
and step 3: mounting and fixing the porous workpiece on a quick-change device, so that each working hole of the porous workpiece is perpendicular to the working table surface of the electric spark equipment;
and 4, step 4: mounting a machining electrode of one specification on a main shaft of an electric spark device C;
and 5: starting a program to perform electric spark integrated machining on a group of oil way communication holes, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
step 6: replacing the machining electrode 7 of the next specification and installing the machining electrode on the main shaft of the electric spark equipment C;
and 7: starting a program to perform electric spark integrated machining on the oil way communication holes of the next group, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
and 8: and (6) repeating the step (6) to the step (7) until all the oil way communication holes of the porous workpiece are completely processed.
Preferably, the quick-change device can clamp one multi-hole series workpiece at a time, and can clamp two multi-hole series workpieces at a time; the quick-change device realizes the quick change of different types of workpieces by changing or connecting different adapter plates; the oil passage communication holes between the internal hole systems of the multi-hole system workpiece have different depth positions and different angles.
Preferably, the machining electrodes may be of different specifications.
The invention has the beneficial effects that:
the invention relates to an electric spark integrated machining method for oil way ditch through holes of a multi-hole workpiece, which is combined with a quick-change device, so that the holes of the workpiece are vertical to the working table surface of electric spark equipment, the workpiece is clamped on the built-in C-axis type electric spark equipment at one time to realize the integrated machining of electric sparks of the plurality of ditch through holes, and the machining efficiency and the equipment utilization rate are improved.
The quick-change device is in precise clearance fit through a mortise and tenon structure, and is used for positioning and fastening the workpiece through a positioning pin and a screw, so that the workpiece is quickly installed and fixed; the quick-change device realizes the quick change of workpieces of different varieties by connecting or replacing different adapter plates, improves the processing flexibility and develops the potential of equipment. The electric spark equipment is internally provided with a C main shaft, and can rotate a machining electrode for machining. And finishing the processing requirements of the oil way groove through holes with different depths and different angles in the workpiece through a processing program. The electric spark integrated machining method plays an important role in meeting the requirement of realizing the electric spark integrated machining of a plurality of groove through holes by one-time clamping.
Drawings
FIG. 1 is a top plan view of the base plate;
FIG. 2 is a side view of the base plate;
FIG. 3 is a top view of an interposer;
FIG. 4 is a side view of an adapter plate;
FIG. 5 is a front view of the adapter plate;
FIG. 6 is a top view of a stop block;
FIG. 7 is a side view of a stop block;
FIG. 8 is a top view of the quick-change device;
FIG. 9 is a side view of the quick-change device;
FIG. 10 is a rear elevational view of the quick-change device configuration;
FIG. 11 is a front view of the quick-change device;
fig. 12 is a schematic view of the quick-change device installation of the present invention;
the machining method comprises the following steps of 1-base plate, 2-adapter plate, 3-limiting block, 4-pin, 5-quick-change device, 6-workpiece and 7-machining electrode.
Detailed Description
The quick-change device will be described in further detail with reference to the accompanying drawings.
The invention provides a quick-change device, which comprises a bottom plate 1, an adapter plate 2 and a limiting block 3, wherein:
the bottom plate 1 is of a plate body structure, a square inner groove is formed in the middle of the bottom plate, and at least one groove is formed in the edge of the square inner groove;
the adapter plate 2 is of a plate body structure, a male die is arranged in the middle of the adapter plate, a cross groove is formed in the male die, and a groove of the base plate is in clearance fit with the male die of the adapter plate;
the limiting block 3 is of a plate body structure and is in clearance fit with a cross groove of the convex die of the adapter plate to fix the adapter plate 2.
Preferably, the fixing device further comprises a pin 4, and the pin 4 penetrates through an inner hole in the limiting block to be matched with a threaded hole in the bottom plate so as to fix the bottom plate 1 and the limiting block 3.
Preferably, the pin 4 is a revolving body structure, and a threaded rod is axially arranged and penetrates through an inner hole in the limiting block to be matched with a threaded hole in the bottom plate.
Preferably, the bottom plate 1 is provided with two blind rivet holes for installing the centering blind rivet and the directional blind rivet, and the centering blind rivet and the directional blind rivet are locked by a zero positioning system on the working table of the electric spark equipment, so that the centering and directional processing of the workpiece is realized.
Preferably, two positioning holes are formed in the bottom plate 1 and are in clearance fit with positioning pins on the manipulator, and the manipulator is stabilized to automatically transfer and process workpieces.
Preferably, the groove of the bottom plate 1 and the male die of the adapter plate 2 are in a face-to-face joint tenon-and-mortise structure.
Preferably, the mortise and tenon structure is a dovetail structure or a key slot structure.
Preferably, the adapter plate 2 is provided with a positioning pin hole and a mounting hole for mounting a machined workpiece or connecting the adapter plate 2 suitable for different types of workpieces.
Example one
Referring to fig. 8 and 9, in the embodiment, a quick change device for automatic production of electric sparks for a porous shell, two dovetail grooves are formed in four inner grooves of a bottom plate 1. The dovetail groove of bottom plate 1 and the forked tail terrace die clearance fit of keysets 2, stopper 3 and the cross slot clearance fit of the forked tail terrace die of keysets 2 fix a position, and pin 4 passes the hole on the stopper 3 and the screw hole cooperation of bottom plate 1, fastens all structures. Two positioning holes are formed in the bottom plate 1 and are in clearance fit with positioning pins on the manipulator, and the manipulator can be stabilized to automatically transfer and process products. The adapter plate 2 is provided with a positioning pin hole and a mounting hole for connecting a variety of workpieces. The dovetail structure can be replaced by other suitable mortise and tenon structures.
Example two
Referring to fig. 10 and 11, in the embodiment, a quick change device for automatic production of electric sparks for a porous shell, two dovetail grooves are formed in four inner grooves of a bottom plate 1. The dovetail groove of bottom plate 1 and keysets 2A's forked tail terrace die clearance fit, stopper 3 and keysets 2A's forked tail terrace die's cross slot clearance fit fix a position, and pin 4 passes the hole on the stopper 3 and the screw hole cooperation of bottom plate 1, fastens all structures. Two positioning holes are formed in the bottom plate (1) and are in clearance fit with positioning pins on the manipulator, and the manipulator can be stabilized to automatically transfer and process products. The adapter plate 2A is provided with a positioning pin hole and a mounting hole which are connected with the adapter plate 2B, and the adapter plate 2B is connected with another variety of workpieces. The dovetail structure can be replaced by other suitable mortise and tenon structures. The quick-change device 5 realizes the quick change of different types of workpieces by changing or connecting different adapter plates 2.
The invention refers to fig. 12, a method for integrated electric spark machining of a through hole of a porous oil way ditch, which is combined with a quick change device 5, and comprises the following steps:
step 1: making a machining electrode 7 by tabulating the specification sizes of oil path communication holes of the porous workpiece 6, and grouping the same specifications into one group;
step 2: setting electric machining parameters according to the specification requirements of the oil way communication hole and the discharge gap, and compiling an electric spark integrated machining program;
and step 3: mounting and fixing the porous workpiece 6 on the quick-change device 5, so that each working hole of the porous workpiece 6 is vertical to the working table of the electric spark equipment;
and 4, step 4: mounting a machining electrode 7 of one specification on a main shaft of the electric spark equipment C;
and 5: starting a program to perform electric spark integrated machining on a group of oil way communication holes, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
step 6: replacing the machining electrode 7 of the next specification and installing the machining electrode on the main shaft of the electric spark equipment C;
and 7: starting a program to perform electric spark integrated machining on the oil way communication holes of the next group, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
and 8: and (6) repeating the step (6) to the step (7) until all the oil way communication holes of the porous workpiece (6) are completely processed.
Preferably, the quick-change device 5 can clamp one porous workpiece 6 at a time, and can clamp two porous workpieces 6 at a time; the quick-change device 5 realizes the quick change of different types of workpieces by changing or connecting different adapter plates 2.
Preferably, the oil path communication holes between the hole systems in the porous workpiece 6 have different depth positions and different angles;
preferably, the machining electrode 7 may be of different specifications.
Claims (9)
1. A multi-hole series communication hole electric spark integrated processing quick change device (5) is characterized in that: comprises a bottom plate (1), an adapter plate (2) and a limiting block (3);
the bottom plate (1) is of a plate body structure, a square inner groove is formed in the middle of the bottom plate, and at least one groove is formed in the edge of the square inner groove;
the adapter plate (2) is of a plate body structure, a male die is arranged in the middle of the adapter plate, a cross groove is formed in the male die, and a groove of the base plate is in clearance fit with the male die of the adapter plate;
the limiting block (3) is of a plate body structure and is in clearance fit with the cross groove of the convex die of the adapter plate to fix the adapter plate (2).
2. The quick-change device for the electrical discharge machining integrated processing of the porous communication hole as claimed in claim 1, wherein: the bottom plate fixing device is characterized by further comprising a pin (4), wherein the pin (4) penetrates through an inner hole in the limiting block to be matched with a threaded hole in the bottom plate, and the bottom plate (1) and the limiting block (3) are fixed.
3. The rapid-change device (5) for electrical discharge machining integrated processing of porous communication holes as claimed in claim 2, wherein: the pin (4) is of a revolving body structure, a threaded rod is axially arranged, and the threaded rod penetrates through an inner hole in the limiting block to be matched with a threaded hole in the bottom plate.
4. The rapid-change device (5) for electrical discharge machining integrated processing of porous communication holes as claimed in claim 1, wherein: two blind rivet holes are formed in the bottom plate (1) and used for installing centering blind rivets and directional blind rivets, and the centering blind rivets and the directional blind rivets are locked through a zero positioning system on a working table of the electric spark equipment, so that workpieces are centered and directionally machined.
5. The electrical discharge machining rapid-change device (5) for the porous communication hole as claimed in claim 4, wherein: two positioning holes are formed in the bottom plate (1) and are in clearance fit with positioning pins on the manipulator, and the manipulator is stabilized to automatically transfer and process workpieces.
6. The rapid-change device (5) for electrical discharge machining integrated processing of porous communication holes as claimed in claim 1, wherein: the groove of the bottom plate (1) and the male die of the adapter plate (2) are in a face-to-face joint tenon-and-mortise structure.
7. The electrical discharge machining rapid-change device (5) for the porous communication hole as claimed in claim 6, wherein: the mortise and tenon structure is a dovetail structure or a key groove structure.
8. The rapid-change device (5) for electrical discharge machining integrated processing of porous communication holes as claimed in claim 1, wherein: the adapter plate (2) is provided with a positioning pin hole and a mounting hole and is used for mounting and processing workpieces or connecting the adapter plate (2) suitable for different types of workpieces.
9. The method for integrated processing of porous communication hole spark erosion machining of the quick change device (5) according to any one of claims 1 to 8, comprising the steps of:
step 1: making machining electrodes (7) by tabulating the specification and size of oil passage communication holes of the porous workpiece (6) and grouping the same specifications;
step 2: setting electric machining parameters according to the specification requirements of the oil way communication hole and the discharge gap, and compiling an electric spark integrated machining program;
and step 3: mounting and fixing the porous workpiece (6) on the quick-change device (5) to ensure that each working hole of the porous workpiece (6) is vertical to the working table of the electric spark equipment;
and 4, step 4: mounting a machining electrode (7) of one specification on a main shaft of an electric discharge device C;
and 5: starting a program to perform electric spark integrated machining on a group of oil way communication holes, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
step 6: replacing a machining electrode (7) with the next specification and installing the machining electrode on a main shaft of the electric spark equipment C;
and 7: starting a program to perform electric spark integrated machining on the oil way communication holes of the next group, wherein the voltage is U: 100V, current I: 8A, discharging for 0.2-0.6S;
and 8: and (5) repeating the step (6) to the step (7) until all the oil way communication holes of the porous workpiece (6) are completely processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680250.0A CN114226885B (en) | 2021-12-30 | 2021-12-30 | Electric spark integrated machining quick-change device and method for porous communication holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680250.0A CN114226885B (en) | 2021-12-30 | 2021-12-30 | Electric spark integrated machining quick-change device and method for porous communication holes |
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| Publication Number | Publication Date |
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| CN114226885A true CN114226885A (en) | 2022-03-25 |
| CN114226885B CN114226885B (en) | 2023-07-25 |
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| CN202111680250.0A Active CN114226885B (en) | 2021-12-30 | 2021-12-30 | Electric spark integrated machining quick-change device and method for porous communication holes |
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| CN113649838A (en) * | 2021-09-24 | 2021-11-16 | 武汉联塑精密模具有限公司 | Anchor clamps and clamping system in batches are divided on four sides |
| CN215509360U (en) * | 2020-12-11 | 2022-01-14 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Universal clamping quick-change device |
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| CN2887523Y (en) * | 2006-03-20 | 2007-04-11 | 许晓华 | Circular workpiece hole machining clamp for wire-cutting |
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| CN114226885B (en) | 2023-07-25 |
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