CN113681099B - Universal tool and method for cutting ring segment parts - Google Patents

Universal tool and method for cutting ring segment parts Download PDF

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Publication number
CN113681099B
CN113681099B CN202111041982.5A CN202111041982A CN113681099B CN 113681099 B CN113681099 B CN 113681099B CN 202111041982 A CN202111041982 A CN 202111041982A CN 113681099 B CN113681099 B CN 113681099B
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China
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key
positioning
circumferential
sliding block
extension plate
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CN113681099A (en
Inventor
包大陆
王柱
陈泽贺
陈磊
张懿霏
杨海涛
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AECC Shenyang Liming Aero Engine Co Ltd
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AECC Shenyang Liming Aero Engine Co Ltd
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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
    • B23H11/003—Mounting of workpieces, e.g. working-tables
    • 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
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • 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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The invention relates to a universal tool and a method for cutting ring segment parts, comprising a base main body, a circumferential positioning transfer sliding block, a circumferential transfer sliding block, an extension plate and a positioning joint, wherein the circumferential positioning transfer sliding block and the circumferential transfer sliding block are arranged on the base main body in a matching way through key grooves, the extension plate and the positioning joint are sequentially arranged at the upper parts of the circumferential positioning transfer sliding block and the circumferential transfer sliding block, one end of the extension plate is fastened with the positioning joint and the circumferential positioning transfer sliding block or the circumferential transfer sliding block through screws, one end of the extension plate at the upper part of the circumferential positioning transfer sliding block is provided with a key positioning shaft and a guide piece, one end of the extension plate at the circumferential transfer sliding block part is provided with a key positioning shaft and a pressing piece, and the parts to be processed are clamped and pressed. The invention can be used in both fixed-type and rotary-type worktable wire-cut electric discharge machines, and the traditional fixed-type worktable wire-cut electric discharge machine has the capability of angular indexing cutting processing of ring segment parts.

Description

Universal tool and method for cutting ring segment parts
Technical Field
The invention belongs to the technical field of ring segment part machining, and particularly relates to a universal tool and a universal tool method for cutting-off machining of ring segment parts.
Background
At present, in the field of machining of ring segment parts of aero-engines, an electric spark linear cutting machine tool of a rotary workbench is mainly used for indexing cutting machining. When the ring segment type part is cut off by the wire cut electric discharge machine, the part needs to be clamped by using special fixtures, and each special fixture usually only can be used for processing one type of part, so that the universality of the special fixtures is poor.
The types of ring-segment parts of the aeroengine are multiple, the batch is small, the conversion is frequent, the number is large, the special fixture is long in design and manufacturing period, high in cost and long in fixture conversion time, and the requirements of development and processing cannot be met. Meanwhile, the wire cut electric discharge machine with the work table partially fixed can not process ring segment parts because the work table can not rotate, so that productivity waste is caused.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a universal tool and a universal method for cutting ring segment parts, which can simultaneously meet the machining requirements of a fixed-type worktable wire-cut electric discharge machine and a rotary-type worktable wire-cut electric discharge machine, so that the traditional fixed-type worktable wire-cut electric discharge machine has the capability of angular indexing cutting of ring segment parts, can clamp the parts with different diameters, different heights, different shapes, different arc lengths, different chord heights and different segment numbers for machining, and has strong universality. The invention solves the problems of multiple types of ring segment parts, small batch, frequent conversion, multiple numbers, large demand for special fixtures, difficult fixture conversion and high frequency.
The utility model provides a omnipotent frock for ring segment class part cut-off processing, including the base main part, circumferential direction location switching slider, circumferential direction switching slider, extension board and location joint, circumferential direction location switching slider, circumferential direction switching slider passes through the keyway cooperation setting on the base main part, upper portion of circumferential direction location switching slider and circumferential direction switching slider has set gradually extension board and location joint, and through screw with extension board one end and location joint and circumferential direction location switching slider or circumferential direction switching slider fastening, the extension board other end on circumferential direction location switching slider upper portion is provided with key location axle and guide, the extension board other end on circumferential direction switching slider upper portion is provided with key location axle and compact disc, the clamping compresses tightly the part that treats jointly.
The base main body comprises two parts with different outer diameters, namely a small end positioned at the upper part and a large end positioned at the lower part; the small end is annular, a T-shaped annular key groove is formed in the upper surface of the small end, and a ring groove at the lower part of the T-shaped annular key groove is used for installing a T-shaped nut; the upper surface of the small end is provided with a small end surface centripetal straight key groove, and the lower surface of the large end is provided with a large end surface centripetal straight key groove for positioning the base main body on a machine tool.
The number of the small end face centripetal straight key grooves is larger than 1.
Circular arc keys are arranged on the lower surface of the circumferential positioning transfer sliding block, cross key grooves are arranged on the upper surface of the circumferential positioning transfer sliding block, the circular arc keys are matched with upper annular grooves of T-shaped annular key grooves arranged on the small end face of the base body, vertical key grooves are arranged on the inner and outer sides of the circumferential positioning transfer sliding block along the height direction towards the central position, and a key is arranged in each vertical key groove and matched with the small end face centripetal straight key groove.
Circular arc keys are arranged on the lower surface of the circumferential transfer sliding block, cross key grooves are arranged on the upper surface of the circumferential transfer sliding block, and the circular arc keys are matched with upper annular grooves of the T-shaped annular key grooves arranged on the small end face of the base body.
The upper surface of the extension plate is used for a plane for axially positioning a part to be processed, cross key grooves are formed in the upper surface and the lower surface of the extension plate, cross keys are arranged in the cross key grooves in the lower surface of the extension plate and are matched with the circumferential positioning transfer sliding blocks or the cross key grooves in the upper surface of the circumferential transfer sliding blocks, a key positioning shaft is arranged at the other end of the extension plate, cross key grooves are formed in the lower surface of the key positioning shaft, a cross key is arranged in the cross key grooves and is matched with centripetal key grooves in the cross key grooves in the upper surface of the extension plate; a T-shaped screw is arranged in a centripetal key slot in a cross key slot on the upper surface of the extension plate at the upper part of the circumferential transfer sliding block, and a pressing piece is arranged on the T-shaped screw; t-shaped screws are arranged in centripetal key grooves in cross key grooves on the upper surface of the extension plate on the upper part of the circumferential positioning transfer sliding block, and guide pieces are arranged on the T-shaped screws.
The universal tool for cutting ring segment parts is processed on a wire-cut electric discharge machine tool of a fixed workbench, and specifically comprises the following steps:
step one: mounting the base main body on a machine tool workbench, straightening reference surfaces on two sides of a positioning block at the large end of the base main body, and aligning the tool;
step two: installing corresponding numbers of circumferential positioning transfer sliding blocks, circumferential transfer sliding blocks, extension plates and positioning joints according to the number of sections of the part to be processed, wherein one end of each extension plate faces the center of the tool, and the other end of each extension plate is flush with the outer circle of the small end of the base body; the number of the key positioning shafts is 3-4;
step three: the extension board is indexed, and three indexing modes of the extension board are adopted, wherein the first mode is to compare angular center lines on the inner side and the outer side of the circumferential transfer sliding block with angular scale lines on the inner circle and the outer circle of the small end of the base main body, so that quick indexing is realized; the second is to use a small end face centripetal straight key slot of the small end of the base main body as a 0 degree position, use the small end face centripetal straight key slot of the 0 degree position as an angular zero point, index the circumferential transfer sliding block and the extension plate according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate by measuring the center distance between a positioning joint required to be indexed and a positioning joint on the circumferential transfer sliding block at the angular zero point; thirdly, inserting a positioning pin into the reference hole, and realizing accurate indexing of the extension plate by measuring the center distance between the positioning pin and the key positioning shaft;
step four: one end of an extension plate facing to the center of the tool is provided with a key positioning shaft through a straight key, the key positioning shaft provided with the straight key moves in a centripetal key slot of the extension plate, and the size of a spigot is accurately adjusted by measuring the center distance between the key positioning shaft and a positioning joint;
step five: installing and compacting a part to be machined: placing a part to be processed on the upper surface of the extension plate, enabling the side surface to be in contact with the side surface of the key positioning shaft, and then compacting the compacting piece and the guiding piece on the upper surface of the part to be processed;
step six: the molybdenum wire is subjected to linear interpolation processing of an X axis and a Z axis on the inner side of the base body to obtain the required size.
The universal tool for cutting ring segment parts is processed on a wire-cut electric discharge machine of a rotary workbench, and specifically comprises the following steps:
step one: mounting the base main body on a machine tool workbench, straightening reference surfaces on two sides of a positioning block at the large end of the base main body, and aligning the tool;
step two: installing corresponding numbers of circumferential positioning transfer sliding blocks, circumferential transfer sliding blocks, extension plates and positioning joints according to the number of sections of the part to be processed, wherein one end of each extension plate faces to the outer side of the tool, and the other end of each extension plate is flush with the inner circle of the small end of the base body; the number of the key positioning shafts is 3-4;
step three: the extension board is indexed, and three indexing modes of the extension board are adopted, wherein the first mode is to compare angular center lines on the inner side and the outer side of the circumferential transfer sliding block with angular scale lines on the inner circle and the outer circle of the small end of the base main body, so that quick indexing is realized; the second is to use a small end face centripetal straight key slot of the small end of the base main body as a 0 degree position, use the small end face centripetal straight key slot of the 0 degree position as an angular zero point, index the circumferential transfer sliding block and the extension plate according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate by measuring the center distance between a positioning joint required to be indexed and a positioning joint on the circumferential transfer sliding block at the angular zero point; thirdly, inserting a positioning pin into the reference hole, and realizing accurate indexing of the extension plate by measuring the center distance between the positioning pin and the key positioning shaft;
step four: one end of an extension plate facing to the center of the tool is provided with a key positioning shaft through a straight key, the key positioning shaft provided with the straight key moves in a centripetal key slot of the extension plate, and the size of a spigot is accurately adjusted by measuring the center distance between the key positioning shaft and a positioning joint;
step five: installing and compacting a part to be machined: mounting a part to be processed on an extension plate, placing the part to be processed on the upper surface of the extension plate, enabling the side surface to be in contact with the side surface of the key positioning shaft, and then compacting the compacting piece and the guiding piece on the upper surface of the part to be processed;
step six: the molybdenum wire is subjected to linear interpolation processing of the X axis and the Z axis on the outer side of the base body to obtain the required size.
The beneficial effects of the invention are as follows: the invention realizes the universalization, labeling, serialization and modularization of the indexing cutting processing tool for the ring segment parts, ensures the development and delivery schedule, reduces the cost of the special tool and reduces the tool conversion time. The invention has simple structure, easy installation, simple operation, convenient clamping, low cost and obvious application effect. The invention has been successfully applied to the indexing cutting processing of ring segment parts of large turbofan engines, certain turbofan engines, subcontracting and other projects, solves the tooling problem of about 20 pieces by using the universal tooling and the method, realizes the standardization and modularization of the indexing cutting processing tooling of the ring segment parts, ensures the development and delivery schedule, reduces the 790 remainder of the special tooling, saves about 57.65 ten thousand yuan tooling cost, reduces 1100 hours of the design working hour of the special tooling, and shortens the production preparation period by 85%. The method has wide popularization, and can bring economic benefit in the aspects of saving special tooling cost, reducing part quality loss, reducing processing time and shortening production preparation time, and save about hundreds of thousands of yuan.
Drawings
FIG. 1 is a schematic clamping diagram of a universal tool provided by an embodiment of the invention;
FIG. 2 is a front view of a universal tool according to an embodiment of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a view in the A-A direction of FIG. 3;
fig. 5 is an enlarged view of a portion a in fig. 1;
wherein,
the device comprises a base body, a 2-circumferential transfer sliding block, a 3-angular center line, a 4-reference hole, a 5-reference surface, a 6-circumferential positioning transfer sliding block, a 7-extension plate, an 8-guide piece, a 9-compression piece, a 10-key positioning shaft, an 11-positioning joint, a 12-T nut, a 13-small end face centripetal straight key groove, a 14-angular scale line, a 15-T annular key groove, a 16-large end face centripetal straight key groove and a 17-part to be processed.
Detailed Description
For better explanation of the present invention, for easy understanding, the technical solution and effects of the present invention will be described in detail below by way of specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, a universal tool for cutting ring segment parts comprises a base body 1, a circumferential positioning transfer sliding block 6, a circumferential transfer sliding block 2, an extension plate 7 and a positioning joint 11, wherein the circumferential positioning transfer sliding block 6 and the circumferential transfer sliding block 2 are arranged on the base body 1 through key slot matching, the upper parts of the circumferential positioning transfer sliding block 6 and the circumferential transfer sliding block 2 are sequentially provided with the extension plate 7 and the positioning joint 11, one end of the extension plate 7 is fastened with the positioning joint 11 and the circumferential positioning transfer sliding block 6 or the circumferential transfer sliding block 2 through screws, the other end of the extension plate 7 at the upper part of the circumferential positioning transfer sliding block 6 is provided with a key positioning shaft 10 and a guide piece 8, and the other end of the extension plate 7 at the part of the circumferential transfer sliding block 2 is provided with a key positioning shaft 10 and a pressing piece 9, so as to jointly clamp and press a part 17 to be processed.
As shown in fig. 2-4, the base main body 1 is a main body part of the device, and the base main body 1 comprises two parts with different outer diameters, namely a small end positioned at the upper part and a large end positioned at the lower part; the small end is annular, a T-shaped annular key groove 15 is formed in the upper surface of the small end, an upper annular groove of the T-shaped annular key groove 15 is used for converting radial dimension and angular dimension references between the base body 1 and the circumferential transfer sliding block 2 and between the lower annular groove of the T-shaped annular key groove 15 and the circumferential positioning transfer sliding block 6, and a T-shaped nut 12 is arranged in the lower annular groove of the T-shaped annular key groove 15; the upper surface of the small end is provided with a small end surface centripetal straight key groove 13 for angular positioning during indexing of the circumferential transfer sliding block 2; the lower surface of the big end is provided with a big end surface centripetal straight key groove 16 for positioning the base main body 1 on a machine tool. The number of the small end face centripetal straight key grooves 13 in the embodiment is four, and the small end face centripetal straight key grooves are uniformly distributed along the circumferential direction of the T-shaped annular key groove 15; the number of the large end face centripetal straight key grooves 16 in the embodiment is four, and the large end face centripetal straight key grooves are uniformly distributed along the circumferential direction of the large end.
As shown in fig. 5, the lower surface of the circumferential positioning transfer sliding block 6 is provided with an arc key, the upper surface of the circumferential positioning transfer sliding block 6 is provided with a cross key slot, the arc key is matched with an upper ring slot of a T-shaped annular key slot 15 provided on a small end surface of the base body 1, and the circumferential positioning transfer sliding block 6 can slide along the T-shaped annular key slot 15. The cooperation of the circular arc key and the T-shaped annular key groove 15 converts the radial reference of the base body 1 to the center of the cross key groove on the upper surface of the circumferential positioning transfer sliding block 6. The center of the circumferential positioning transfer sliding block 6 is provided with a through hole along the height direction for compressing and fixing. The angular center positions of the inner side and the outer side of the circumferential positioning transfer sliding block 6 are provided with vertical key grooves along the height direction, a key is arranged in each vertical key groove and is matched with the small end-face centripetal straight key groove 13, and the angular reference of the base body 1 is converted to the center of the cross key groove on the upper surface of the circumferential positioning transfer sliding block 6.
As shown in fig. 5, the lower surface of the circumferential adapting slide block 2 is provided with an arc key, the upper surface of the circumferential adapting slide block 2 is provided with a cross key slot, the arc key is matched with an upper ring slot of a T-shaped annular key slot 15 provided on a small end surface of the base body 1, and the circumferential adapting slide block 2 can slide along the T-shaped annular key slot 15. The cooperation of the circular arc key and the T-shaped annular key groove 15 converts the radial reference of the base body 1 to the center of the cross key groove on the upper surface of the circumferential transfer sliding block 2. The center of the circumferential transfer sliding block 2 is provided with a through hole along the height direction for compressing and fixing.
The upper surface of the extension plate 7 is used for a plane for axially positioning a part 17 to be processed, cross key grooves are formed in the upper surface and the lower surface of the extension plate 7, cross keys are installed in the cross key grooves in the lower surface of the extension plate 7 and matched with the cross key grooves in the upper surface of the circumferential positioning transfer sliding block 6 or the circumferential transfer sliding block 2, and the radial direction and the angular direction size standard of the base main body 1 are converted to the center of the cross key grooves in the upper surface of the extension plate 7. The key location axle 10 is installed to the extension board 7 other end, and the cross keyway has been seted up to key location axle 10 lower surface, installs a key in the cross keyway, cooperates with the centripetal keyway in the cross keyway of extension board 7 upper surface, and key location axle 10 can slide along the centripetal keyway in the cross keyway of extension board 7 upper surface. Through the key positioning shaft 10 provided with the key, the size of the positioning spigot can be adjusted by moving the key positioning shaft 10, so that the side surface of the key positioning shaft 10 is contacted with the side surface of the part 17 to be processed, and the part is positioned.
The middle part of the extension plate 7 is provided with a through hole along the height direction.
When the fixed workbench wire-cut electric discharge machine is used for machining, one end of the extension plate 7 faces the center of the tool, the other end of the extension plate is flush with the outer circle of the small end of the base body 1, and the molybdenum wire is subjected to linear interpolation machining to obtain the required size inside the base body 1. When the wire cut electrical discharge machining tool of the rotary workbench is used for machining, one end of the extension plate 7 faces the outer side of the tool, the other end of the extension plate is flush with the inner circle of the small end of the base body 1, and the molybdenum wire is subjected to linear interpolation machining to obtain the required size on the outer side of the base body 1.
T-shaped screws are arranged in centripetal keyways in cross keyways on the upper surface of the extension plate 7 on the upper part of the circumferential transfer sliding block 2, and pressing pieces 9 are arranged on the T-shaped screws and used for clamping and pressing parts 17 to be processed.
T-shaped screws are arranged in centripetal keyways in cross keyways on the upper surface of an extension plate 7 on the upper part of the circumferential positioning transfer sliding block 6, and guide pieces 8 are arranged on the T-shaped screws and used for guiding and clamping parts 17 to be processed.
In this embodiment, the ring segment parts to be processed are eight segments, and are provided with seven circumferential transfer sliding blocks 2 and one circumferential positioning transfer sliding block 6, and four key positioning shafts 10.
The lower surface of the positioning joint 11 is provided with a cross key slot, a cross key is arranged in the cross key slot on the upper surface of the extension plate 7, and the cross key slot is matched with the cross key slot on the lower surface of the positioning joint 11 to convert the radial and angular dimension references of the base main body 1 into the center of the positioning joint 11. Through holes are formed in the middle of the positioning joint 11 along the height direction, and screws sequentially penetrate through the positioning joint 11, the extension plate 7, the circumferential positioning transfer sliding block 6 or the circumferential transfer sliding block 2 and are matched with the T-shaped nuts 12 in the T-shaped annular key grooves 15 to be compressed.
The large end of the base main body 1 is symmetrically provided with reference holes 4 along the height direction thereof for angular positioning during indexing of the circumferential transfer sliding block 2; the side surfaces of the large end of the base main body 1, which are positioned on two sides of the reference hole 4, are reference surfaces 5, are symmetrical relative to the center of the base main body 1 and are used for alignment of the whole tool. The reference hole 4 in this embodiment has a size of phi 21H7.
The inner circle and the outer circle of the small end of the base body 1 are provided with angular scale marks 14 for quick indexing of the circumferential transfer sliding block 2.
Angular center score lines 3 are arranged at the angular center positions of the inner side and the outer side of the circumferential transfer sliding block 2 and are used for rapid indexing of the circumferential transfer sliding block 2.
During processing, according to the corresponding quantity of circumference location switching slider 6, circumference switching slider 2, extension board 7 and location joint 11 of the number of sections of waiting to process part 17, the total number of circumference location switching slider 6 and circumference switching slider 2 equals with waiting to process the number of sections of part 17, and wherein the quantity of circumference location switching slider 6 is greater than 1. The first way of indexing the extension plate 7 is to compare the angular center lines 3 on the inner side and the outer side of the circumferential transfer sliding block 2 with the angular scale lines 14 on the inner circle and the outer circle of the small end of the base main body 1, so as to realize quick indexing; the second is to use a small end face centripetal key groove of the small end of the base body 1 as a 0 degree position, use the small end face centripetal key groove of the 0 degree position as an angular zero point, index the circumferential transfer slide block 2 and the extension plate 7 according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate 7 by measuring the center distance between a positioning joint 11 required to be indexed and a positioning joint 11 on the circumferential positioning transfer slide block 6 at the angular zero point; the third is to insert a positioning pin in the reference hole 4, and to achieve accurate indexing of the extension plate 7 by measuring the center distance of the positioning pin from the key positioning shaft 10.
By adopting the universal tool for cutting ring segment parts, the universal tool is processed on a wire-cut electric discharge machine tool of a fixed workbench, and specifically comprises the following steps:
step one: the base body 1 is arranged on a machine tool workbench, the reference surfaces 5 on two sides of the positioning block at the large end of the base body 1 are straightened, and the tool is aligned.
Step two: according to the number of sections of the part 17 to be processed, a corresponding number of circumferential positioning transfer sliding blocks 6, circumferential transfer sliding blocks 2, extension plates 7 and positioning connectors 11 are arranged, one ends of the extension plates 7 face the center of the tool, and the other ends of the extension plates are flush with the outer circle of the small end of the base body 1.
Step three: the extension board 7 is indexed, and three indexing modes of the extension board 7 are provided, wherein the first mode is to compare the angular center score lines 3 on the inner side and the outer side of the circumferential transfer sliding block 2 with the angular scale lines 14 on the inner circle and the outer circle of the small end of the base main body 1, so that quick indexing is realized; the second is to use a small end face centripetal straight key 13 groove at the small end of the base main body 1 as a 0 degree position, use the small end face centripetal straight key groove at the 0 degree position as an angular zero point, index the circumferential transfer slide block 2 and the extension plate 7 according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate 7 by measuring the center distance between a positioning joint 11 required to be indexed and a positioning joint 11 on the circumferential positioning transfer slide block 6 at the angular zero point; the third is to insert a positioning pin in the reference hole 4, and to achieve accurate indexing of the extension plate 7 by measuring the center distance of the positioning pin from the key positioning shaft 10. The second indexing method is used in this embodiment.
Step four: one end of the extension plate 7 facing the center of the tool is provided with a key positioning shaft 10 through a key, the key positioning shaft 10 provided with the key moves in a centripetal key groove of the extension plate 7, and the size of the spigot is accurately adjusted by measuring the center distance between the key positioning shaft 10 and the positioning joint 11.
Step five: installing and pressing the part to be machined 17: the part to be machined 17 is placed on the upper surface of the extension plate 7 with the side surface in contact with the side surface of the key positioning shaft 10, and then the pressing member 9 and the guide member 8 are pressed against the upper surface of the part to be machined 17.
Step six: the molybdenum wire is subjected to linear interpolation of an X axis and a Z axis on the inner side of the base main body 1 to obtain a required size.
By adopting the universal tool for cutting ring segment parts, the universal tool is processed on a wire-cut electric discharge machine tool of a rotary workbench, and specifically comprises the following steps:
step one: the base body 1 is arranged on a machine tool workbench, the reference surfaces 5 on two sides of the positioning block at the large end of the base body 1 are straightened, and the tool is aligned.
Step two: according to the number of sections of the part 17 to be processed, a corresponding number of circumferential positioning transfer sliding blocks 6, circumferential transfer sliding blocks 2, extension plates 7 and positioning connectors 11 are arranged, one ends of the extension plates 7 face the outer side of the tool, and the other ends of the extension plates are flush with the inner circle of the small end of the base body 1.
Step three: the extension board 7 is indexed, and three indexing modes of the extension board 7 are provided, wherein the first mode is to compare the angular center score lines 3 on the inner side and the outer side of the circumferential transfer sliding block 2 with the angular scale lines 14 on the inner circle and the outer circle of the small end of the base main body 1, so that quick indexing is realized; the second is to use a small end face centripetal straight key groove 13 at the small end of the base main body 1 as a 0 degree position, use the small end face centripetal straight key groove 13 at the 0 degree position as an angular zero point, index the circumferential transfer slide block 2 and the extension plate 7 according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate 7 by measuring the center distance between a positioning joint 11 required to be indexed and a positioning joint 11 on the circumferential positioning transfer slide block 6 at the angular zero point; the third is to insert a positioning pin in the reference hole 4, and to achieve accurate indexing of the extension plate 7 by measuring the center distance of the positioning pin from the key positioning shaft 10. The second indexing method is used in this embodiment.
Step four: one end of the extension plate 7 facing the center of the tool is provided with a key positioning shaft 10 through a key, the key positioning shaft 10 provided with the key moves in a centripetal key groove of the extension plate 7, and the size of the spigot is accurately adjusted by measuring the center distance between the key positioning shaft 10 and the positioning joint 11.
Step five: installing and pressing the part to be machined 17: the part to be machined 17 is mounted on the extension plate 7, the part to be machined 17 is placed on the upper surface of the extension plate 7, the side surface is in contact with the side surface of the key positioning shaft 10, and then the pressing member 9 and the guide member 8 are pressed against the upper surface of the part to be machined 17.
Step six: the molybdenum wire is subjected to linear interpolation processing of an X axis and a Z axis on the outer side of the base main body 1 to obtain a required size.

Claims (3)

1. A omnipotent frock for ring section class part cutting off processing, its characterized in that: the device comprises a base body, a circumferential positioning transfer sliding block, a circumferential transfer sliding block, an extension plate and a positioning joint, wherein the circumferential positioning transfer sliding block and the circumferential transfer sliding block are arranged on the base body in a matching way through key grooves, the extension plate and the positioning joint are sequentially arranged on the upper parts of the circumferential positioning transfer sliding block and the circumferential transfer sliding block, one end of the extension plate is fastened with the positioning joint and the circumferential positioning transfer sliding block or the circumferential transfer sliding block through screws, a key positioning shaft and a guide piece are arranged at the other end of the extension plate on the upper part of the circumferential positioning transfer sliding block, and a key positioning shaft and a compression piece are arranged at the other end of the extension plate on the upper part of the circumferential transfer sliding block so as to clamp and compress a part to be processed together;
the base main body comprises two parts with different outer diameters, namely a small end positioned at the upper part and a large end positioned at the lower part; the small end is annular, a T-shaped annular key groove is formed in the upper surface of the small end, and a ring groove at the lower part of the T-shaped annular key groove is used for installing a T-shaped nut; the upper surface of the small end is provided with a small end surface centripetal straight key groove, and the lower surface of the large end is provided with a large end surface centripetal straight key groove for positioning the base main body on the machine tool;
the number of the small end face centripetal straight key grooves is more than 1;
the lower surface of the circumferential positioning transfer sliding block is provided with an arc key, the upper surface of the circumferential positioning transfer sliding block is provided with a cross key groove, the arc key is matched with an upper annular groove of a T-shaped annular key groove formed in a small end face of the base main body, the angular center positions of the inner side and the outer side of the circumferential positioning transfer sliding block are provided with vertical key grooves along the height direction, and a key is arranged in each vertical key groove and is matched with the small end face centripetal straight key groove;
the lower surface of the circumferential transfer sliding block is provided with an arc key, the upper surface of the circumferential transfer sliding block is provided with a cross key groove, and the arc key is matched with an upper annular groove of a T-shaped annular key groove formed in the small end surface of the base main body;
the upper surface of the extension plate is used for a plane for axially positioning a part to be processed, cross key grooves are formed in the upper surface and the lower surface of the extension plate, cross keys are arranged in the cross key grooves in the lower surface of the extension plate and are matched with the circumferential positioning transfer sliding blocks or the cross key grooves in the upper surface of the circumferential transfer sliding blocks, a key positioning shaft is arranged at the other end of the extension plate, cross key grooves are formed in the lower surface of the key positioning shaft, a cross key is arranged in the cross key grooves and is matched with centripetal key grooves in the cross key grooves in the upper surface of the extension plate; a T-shaped screw is arranged in a centripetal key slot in a cross key slot on the upper surface of the extension plate at the upper part of the circumferential transfer sliding block, and a pressing piece is arranged on the T-shaped screw; t-shaped screws are arranged in centripetal key grooves in cross key grooves on the upper surface of the extension plate on the upper part of the circumferential positioning transfer sliding block, and guide pieces are arranged on the T-shaped screws.
2. The universal tool for cutting ring segment parts is used for machining on a wire cut electric discharge machine of a fixed workbench, and is characterized by comprising the following steps:
step one: mounting the base main body on a machine tool workbench, straightening reference surfaces on two sides of a positioning block at the large end of the base main body, and aligning the tool;
step two: installing corresponding numbers of circumferential positioning transfer sliding blocks, circumferential transfer sliding blocks, extension plates and positioning joints according to the number of sections of the part to be processed, wherein one end of each extension plate faces the center of the tool, and the other end of each extension plate is flush with the outer circle of the small end of the base body; the number of the key positioning shafts is 3-4;
step three: the extension board is indexed, and three indexing modes of the extension board are adopted, wherein the first mode is to compare angular center lines on the inner side and the outer side of the circumferential transfer sliding block with angular scale lines on the inner circle and the outer circle of the small end of the base main body, so that quick indexing is realized; the second is to use a small end face centripetal straight key slot of the small end of the base main body as a 0 degree position, use the small end face centripetal straight key slot of the 0 degree position as an angular zero point, index the circumferential transfer sliding block and the extension plate according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate by measuring the center distance between a positioning joint required to be indexed and a positioning joint on the circumferential transfer sliding block at the angular zero point; thirdly, inserting a positioning pin into the reference hole, and realizing accurate indexing of the extension plate by measuring the center distance between the positioning pin and the key positioning shaft;
step four: one end of an extension plate facing to the center of the tool is provided with a key positioning shaft through a straight key, the key positioning shaft provided with the straight key moves in a centripetal key slot of the extension plate, and the size of a spigot is accurately adjusted by measuring the center distance between the key positioning shaft and a positioning joint;
step five: installing and compacting a part to be machined: placing a part to be processed on the upper surface of the extension plate, enabling the side surface to be in contact with the side surface of the key positioning shaft, and then compacting the compacting piece and the guiding piece on the upper surface of the part to be processed;
step six: the molybdenum wire is subjected to linear interpolation processing of an X axis and a Z axis on the inner side of the base body to obtain the required size.
3. The universal tool for cutting ring segment parts is adopted to process on a wire cut electric discharge machine of a rotary workbench, and is characterized by comprising the following steps:
step one: mounting the base main body on a machine tool workbench, straightening reference surfaces on two sides of a positioning block at the large end of the base main body, and aligning the tool;
step two: installing corresponding numbers of circumferential positioning transfer sliding blocks, circumferential transfer sliding blocks, extension plates and positioning joints according to the number of sections of the part to be processed, wherein one end of each extension plate faces to the outer side of the tool, and the other end of each extension plate is flush with the inner circle of the small end of the base body; the number of the key positioning shafts is 3-4;
step three: the extension board is indexed, and three indexing modes of the extension board are adopted, wherein the first mode is to compare angular center lines on the inner side and the outer side of the circumferential transfer sliding block with angular scale lines on the inner circle and the outer circle of the small end of the base main body, so that quick indexing is realized; the second is to use a small end face centripetal straight key slot of the small end of the base main body as a 0 degree position, use the small end face centripetal straight key slot of the 0 degree position as an angular zero point, index the circumferential transfer sliding block and the extension plate according to corresponding angles, and the indexing is to realize the accurate indexing of the extension plate by measuring the center distance between a positioning joint required to be indexed and a positioning joint on the circumferential transfer sliding block at the angular zero point; thirdly, inserting a positioning pin into the reference hole, and realizing accurate indexing of the extension plate by measuring the center distance between the positioning pin and the key positioning shaft;
step four: one end of an extension plate facing to the center of the tool is provided with a key positioning shaft through a straight key, the key positioning shaft provided with the straight key moves in a centripetal key slot of the extension plate, and the size of a spigot is accurately adjusted by measuring the center distance between the key positioning shaft and a positioning joint;
step five: installing and compacting a part to be machined: mounting a part to be processed on an extension plate, placing the part to be processed on the upper surface of the extension plate, enabling the side surface to be in contact with the side surface of the key positioning shaft, and then compacting the compacting piece and the guiding piece on the upper surface of the part to be processed;
step six: the molybdenum wire is subjected to linear interpolation processing of the X axis and the Z axis on the outer side of the base body to obtain the required size.
CN202111041982.5A 2021-09-07 2021-09-07 Universal tool and method for cutting ring segment parts Active CN113681099B (en)

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CN114888341B (en) * 2022-05-24 2024-09-03 广东韶钢工程技术有限公司 Device for machining shaft parts by milling machine and application method of device

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CN203956737U (en) * 2014-07-25 2014-11-26 成都飞机工业（集团）有限责任公司 360 ° of circumference graduation grinding fixtures
CN210648885U (en) * 2019-08-20 2020-06-02 无锡市润和机械有限公司 Aeroengine wheel disk mortise linear cutting indexing fixture

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6158728A (en) * 1999-12-01 2000-12-12 Smith; Gregory C. Workpiece holding device
CN101487345A (en) * 2009-02-20 2009-07-22 江阴纳尔捷机器人有限公司 Positioning fixture bench for multi-rod crossing valve type net shell node
CN202861855U (en) * 2012-10-24 2013-04-10 成都市新筑路桥机械股份有限公司 Chain wheel keywaying fixture
CN203956737U (en) * 2014-07-25 2014-11-26 成都飞机工业（集团）有限责任公司 360 ° of circumference graduation grinding fixtures
CN210648885U (en) * 2019-08-20 2020-06-02 无锡市润和机械有限公司 Aeroengine wheel disk mortise linear cutting indexing fixture

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