CN111805020A - Nozzle assembly part swirler electric spark punching auxiliary tool and use method - Google Patents
Nozzle assembly part swirler electric spark punching auxiliary tool and use method Download PDFInfo
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- CN111805020A CN111805020A CN202010693238.2A CN202010693238A CN111805020A CN 111805020 A CN111805020 A CN 111805020A CN 202010693238 A CN202010693238 A CN 202010693238A CN 111805020 A CN111805020 A CN 111805020A
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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
- 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
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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
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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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
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Abstract
The invention provides an electric spark punching auxiliary tool for a nozzle assembly part swirler and a use method thereof, belonging to the technical field of punching of clamp swirlers, aiming at solving the problem that the partial punching precision of the swirler is not enough due to inaccurate positioning of the nozzle assembly part when an air outlet of the existing swirler is formed.
Description
Technical Field
The invention belongs to the technical field of clamp swirler punching, and particularly relates to a nozzle assembly piece swirler electric spark punching auxiliary tool and a use method.
Background
Aiming at the processing of the air outlet of the nozzle assembly component swirler, the air outlet on the swirler needs to be processed after the nozzle assembly is integrally welded and a water pumping test is performed. Because the nozzle assembly part is large in size after being welded integrally, the requirement for concentricity of the rear end flange and the swirler cannot be met during welding, and the accuracy of the air outlet taking the swirler as a reference cannot be met by positioning the rear end flange, the auxiliary punching tool for positioning the swirler by utilizing the axle center of the middle-section flange plate and the axle center of the tail end (the main body axis) of the nozzle assembly part and the use method thereof are in line with actual needs.
Disclosure of Invention
The invention provides an electric spark punching auxiliary tool for a swirler of a nozzle assembly part and a using method thereof, aiming at solving the problem that the partial punching precision of the swirler is not enough due to inaccurate positioning of the nozzle assembly part when an air outlet of the existing swirler is arranged;
an auxiliary tool for electric spark drilling of a swirler of a nozzle assembly part comprises a bottom plate, an index plate, a supporting seat, a rotary positioning seat, a positioning plate and a positioning seat, the supporting seat, the rotary positioning seat and the positioning seat are sequentially arranged on the bottom plate along the length direction of the bottom plate, the supporting seat, the rotary positioning seat and the positioning seat are arranged in parallel, the center line of the supporting seat in the length direction, the center line of the rotary positioning seat in the length direction and the center line of the positioning seat in the length direction are positioned on the same straight line, the supporting seat and the rotary positioning seat are positioned at one end of the upper surface of the base plate, the positioning seat is positioned at the other end of the upper surface of the base plate, the positioning plate is arranged on the upper surface of the positioning seat, the dividing disc is arranged on a flange plate in the nozzle assembly part, the nozzle assembly part is arranged on the supporting seat, the rotary positioning seat and;
furthermore, a through groove is formed in the end portion of the index plate, one end of the through groove is communicated with the edge of the index plate, and the deflection angle of two adjacent first index positioning holes in the index plate is 30 degrees;
furthermore, the supporting seat, the rotary positioning seat and the positioning seat are detachably connected with the bottom plate through a bolt-nut mechanism;
furthermore, arc-shaped surfaces are processed on the upper surfaces of the supporting seat, the rotary positioning seat and the positioning seat, a plurality of through holes are processed at equal intervals along the circumferential direction of the arc surface at one end of the supporting seat, a plurality of second positioning holes are processed at equal intervals along the circumferential direction of the arc surface at one end of the rotary positioning seat, each through hole in the supporting seat and one second indexing positioning hole in the rotary positioning seat are correspondingly arranged, each through hole in the supporting seat and each second indexing positioning hole in the rotary positioning seat are correspondingly arranged with one first indexing positioning hole in the indexing disc, the first indexing positioning hole and the second indexing positioning hole have the same aperture, and the aperture of each through hole is larger than the aperture of the first indexing positioning hole and the aperture of the second;
furthermore, a first through hole is processed on the positioning seat, a positioning hole is processed on the bottom plate, the first through hole is arranged corresponding to the positioning hole, a cylindrical pin is arranged in the first through hole and the positioning hole, and the cylindrical pin is in hard fit with the first through hole and the positioning hole;
furthermore, a plurality of strip-shaped holes are processed on the end face of the dividing disc at equal intervals along the circumferential direction, each strip-shaped hole is arranged corresponding to one connecting hole on a flange plate in the nozzle assembly part, a bolt-nut mechanism is arranged in each strip-shaped hole and one connecting hole on the flange plate, and the dividing disc is detachably connected with the flange plate in the nozzle assembly part through a plurality of bolt-nut mechanisms;
furthermore, the index plate is also provided with a bolt, the bolt is in clearance fit with a first index positioning hole on the index plate, the index plate is also provided with a rhombic bolt, and the rhombic bolt is inserted into the first index positioning hole on the index plate;
furthermore, an embedded groove is respectively processed on the top surfaces of two sides of the arc-shaped surface of the positioning seat, a threaded blind hole is processed at the bottom of the embedded groove, a positioning strip-shaped hole is processed on the positioning plate, the positioning plate is arranged in the embedded groove and is communicated with the threaded blind hole, a bolt is arranged in the positioning strip-shaped hole and the threaded blind hole, the threaded end of the bolt penetrates through the positioning strip-shaped hole and the threaded blind hole, and the bolt is in threaded connection with the threaded blind hole;
furthermore, two connecting grooves are respectively machined on two sides of the bottom plate;
a method of using a nozzle assembly swirler spark-erosion drilling aid, the method comprising:
the method comprises the following steps: mounting the nozzle assembly swirler edm pilot tool of any one of claims 1 to 9 on a table of an edm machine and mounting an electrode on a tool end of the edm machine;
step two: the indexing disc is tightly fixed on a flange plate in the nozzle assembly through a plurality of bolt-nut mechanisms, a bent pipe in the nozzle assembly is arranged in a through groove on the indexing disc, and when the indexing disc is tightly fixed, the inserted pin and the rhombic inserted pin can be simultaneously inserted into indexing positioning holes which are randomly separated by 30 degrees and of the indexing disc and the rotary positioning seat;
step three: arranging a nozzle assembly with an index plate on an auxiliary tool, arranging a flange plate in the nozzle assembly on a supporting seat, attaching the outer circle surface of the flange plate to the upper arc surface of the supporting seat, arranging a shaft section, close to the flange plate, in the nozzle assembly on a rotary positioning seat, attaching the outer circle surface of the shaft section to the upper arc surface of the rotary positioning seat, arranging a swirler in the nozzle assembly on the positioning seat, arranging the end surface of a blade in the swirler on the arc surface in the positioning seat, positioning the tail end of the nozzle assembly through a tail thimble, and ensuring that a through hole in the supporting seat and a second index positioning hole in the rotary positioning seat are coaxially arranged with a first index positioning hole in the index plate;
step four: after the nozzle assembly in the third step is positioned, the tail thimble can be inserted into a positioning hole at the tail end of the nozzle assembly, a positioning plate of the positioning seat is adjusted, the tail end of the positioning plate is arranged between the roots of two swirler vanes nearest to the positioning plate, the nozzle assembly is radially positioned and cannot rotate, the bolt is inserted into one first indexing positioning hole and one second indexing positioning hole corresponding to the first indexing positioning hole, and the rhombic bolt is inserted into the other first indexing positioning hole and the second indexing positioning hole corresponding to the first indexing positioning hole;
step five: controlling the cutter of the machine tool to move to a first punching position preset on the nozzle assembly, and carrying out electric spark punching processing (supplementing processing parameters) on the first punching position;
step six: after the first hole is machined, the bolt and the rhombic bolt are pulled out, the positioning plate is adjusted to be pulled away from the space between the two swirler vanes, the index plate is rotated according to the deviation angle between the second punching position and the first punching position on the nozzle assembly, the index plate is stopped after the preset angle is rotated, the through hole in the supporting seat and the second indexing positioning hole in the rotary positioning seat are coaxially arranged with the first indexing positioning hole in the index plate, and the operation from the fourth step to the fifth step is repeated;
step seven: and repeating the operation from the fourth step to the sixth step, taking the nozzle assembly off the auxiliary tool after primary punching is finished, and performing quality inspection and acceptance on the three processed holes.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an electric spark punching auxiliary tool for a nozzle assembly swirler and a using method thereof, wherein the swirler of the nozzle assembly to be processed is positioned by a special auxiliary device, the integral axis of the nozzle assembly to be welded can be positioned to be horizontal, the position accuracy of an air outlet hole based on the swirler is better ensured compared with the traditional positioning mode, an index plate is arranged on the auxiliary device, the position accuracy of three holes to be processed after a workpiece is rotated can be ensured, simultaneously, when indexing is carried out according to a first indexing positioning hole on the auxiliary tool, the position degrees of all impellers of the swirler are ensured to be the same, the repeatability of the electric spark punching accuracy is ensured, compared with the traditional clamping mode, the method only needs one-time clamping, the process flow that one hole is processed and clamped again is avoided, and the position degrees of all the impellers of the swirler are improved, the processing efficiency is further improved.
Drawings
FIG. 1 is a schematic front view of an auxiliary tool according to the present invention;
FIG. 2 is a schematic top view of the auxiliary tool of the present invention;
FIG. 3 is a schematic view from A-A of the auxiliary tool of the present invention;
FIG. 4 is a schematic top view of a base plate of the auxiliary tool of the present invention;
FIG. 5 is a schematic end view of an index plate of the auxiliary tool of the present invention;
FIG. 6 is a schematic front view of a support base of the auxiliary tool of the present invention;
FIG. 7 is a schematic top view of a support base of the present invention;
FIG. 8 is a schematic front view of a rotational positioning seat of the present invention;
FIG. 9 is a schematic top view of the rotational positioning base of the auxiliary tool of the present invention;
FIG. 10 is a schematic view of the rotary positioning base of the present invention taken from the perspective B-B;
FIG. 11 is a schematic front view of a positioning socket of the auxiliary tool of the present invention;
FIG. 12 is a schematic view of the positioning socket of the auxiliary tool of the present invention from a perspective of C-C;
FIG. 13 is a schematic top view of the positioning socket of the auxiliary tool of the present invention;
in the figure, a bottom plate 1, an index plate 2, a support base 3, a rotary positioning base 4, a positioning plate 5, a positioning base 6, a cylindrical pin 7, a plug 8 and an electrode 9 are shown
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the embodiment provides an auxiliary tool for the electric spark drilling of a swirler of a nozzle assembly, the auxiliary tool comprises a bottom plate 1, an index plate 2, a supporting seat 3, a rotary positioning seat 4, a positioning plate 5 and a positioning seat 6, the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6 are sequentially installed on the bottom plate 1 along the length direction of the bottom plate 1, the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6 are arranged in parallel, the center line of the supporting seat 3 along the length direction, the center line of the rotary positioning seat 4 along the length direction and the center line of the positioning seat 6 along the length direction are located on the same straight line, the supporting seat 3 and the rotary positioning seat 4 are located at one end of the upper surface of the bottom plate 1, the positioning seat 6 is located at the other end of the upper surface of the bottom plate 1, the nozzle assembly is arranged on the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6, and the dividing plate 2 is arranged on the outer side of the supporting seat 3.
The embodiment provides an electric spark punching auxiliary tool for a nozzle assembly part swirler and a using method of the electric spark punching auxiliary tool, the whole axis of a welded nozzle assembly can be positioned to the horizontal, the position accuracy of an air outlet hole taking the swirler as a reference is guaranteed, when a first indexing positioning hole on the auxiliary tool is indexed, the same position degree of all impellers of the swirler is guaranteed, the repeatability of electric spark punching accuracy is guaranteed, and the working efficiency is improved.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 5, which further defines the right-angle index plate 2 according to the first embodiment, in the present embodiment, a through groove is formed at an end portion of the index plate 2, one end of the through groove is provided to communicate with an edge of the index plate 2, a deflection angle of two adjacent first index positioning holes in the index plate 2 is 30 °, and other configurations and connection manners are the same as those of the first embodiment.
In this embodiment, the through groove is added to the index plate 2 to avoid interference caused by the bent pipe portion in the nozzle assembly.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, and further defines the support base 3, the rotation positioning base 4, and the positioning base 6 described in the first embodiment, and in the present embodiment, the support base 3, the rotation positioning base 4, and the positioning base 6 are all detachably connected to the bottom plate 1 by a bolt-nut mechanism, and other components and connection modes are the same as those of the second embodiment.
In this embodiment, it is convenient to replace when a part of the support base 3, the rotation positioning base 4 and the positioning base 6 is damaged.
The fourth concrete implementation mode: referring to fig. 6, 8 and 11, the present embodiment is further defined by the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6 described in the first embodiment, in the present embodiment, the upper surfaces of the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6 are all processed with arc surfaces, one end of the supporting seat 3 is processed with a plurality of through holes equidistantly along the circumferential direction of the arc surfaces, one end of the rotary positioning seat 4 is processed with a plurality of second indexing positioning holes equidistantly along the circumferential direction of the arc surfaces, each dry through hole in the supporting seat 3 and one second indexing positioning hole in the rotary positioning seat 4 are correspondingly arranged, each through hole in the supporting seat 3 and each second indexing positioning hole in the rotary positioning seat 4 are correspondingly arranged with one first indexing positioning hole in the indexing plate 2, and the apertures of the first indexing positioning hole and the second indexing positioning hole are the same, and the aperture of the through hole is larger than the aperture of the first indexing positioning hole and the aperture of the second, other components and connection modes are the same as those of the third embodiment.
In this embodiment, the supporting seat 3, the rotary positioning seat 4 and the positioning seat 6 are processed into arc surfaces to be attached to the spraying assembly, referring to fig. 6 and 8, the positions of the through hole and the second indexing positioning hole can be seen, the second indexing positioning hole is the main hole system mutually positioned with the first indexing positioning hole in actual work, but in order to support the middle flange, the supporting plate 3 is arranged between the index plate 2 and the rotary positioning plate 4, so as to avoid the obstruction of the plate body of the supporting plate 3 to the process that the bolt 8 is inserted into the second indexing positioning hole and the first indexing positioning hole, and therefore, the through hole is processed on the supporting plate 3.
The fifth concrete implementation mode: referring to fig. 2, this embodiment is described, and the present embodiment further defines the positioning seat 6 described in the fourth embodiment, in this embodiment, a first through hole is processed on the positioning seat 6, a positioning hole is processed on the bottom plate 1, the first through hole is disposed corresponding to the positioning hole, a cylindrical pin 7 is disposed in the first through hole and the positioning hole, and the cylindrical pin 7 is in hard fit with the first through hole and the positioning hole. The other components and the connection mode are the same as those of the fourth embodiment.
So set up, in order to guarantee that the position of positioning seat 6 is accurate.
The sixth specific implementation mode: referring to fig. 2, the present embodiment is described, and the present embodiment further defines the index plate 2 according to the fourth embodiment, in the present embodiment, a plurality of holes are processed on the end surface of the index plate 2 at equal intervals along the circumferential direction, each of the plurality of holes is disposed corresponding to one of the plurality of connection holes on the flange plate of the nozzle assembly, one bolt-nut mechanism is disposed in each of the plurality of holes and one of the plurality of connection holes on the flange plate, and the index plate 2 is detachably connected to the flange plate of the nozzle assembly by the plurality of bolt-nut mechanisms. The other components and the connection mode are the same as those of the fourth embodiment.
This is provided to facilitate connection of the indexing disk 2 to the flange in the nozzle assembly.
The seventh embodiment: referring to fig. 1 and 2, the present embodiment is described, and the present embodiment further defines the index plate 2 according to the fourth embodiment, in the present embodiment, a bolt 8 is further provided on the index plate 2, the bolt 8 is in clearance fit with one index positioning hole on the index plate 2, a rhombic bolt is further provided on the index plate 2, and the rhombic bolt is inserted into one index positioning hole on the index plate 2. The other components and the connection mode are the same as those of the fourth embodiment.
In the present embodiment, the pin 8 is used for positioning between the index plate 2 and the rotary positioning seat 4, the index plate 2 is placed to rotate again after the angle is turned, the diamond pin is used for assisting the positioning, and the diamond pin is inserted to further prevent the index plate 2 from rotating again after the angle is turned on the index plate 2.
The specific implementation mode is eight: the embodiment is described with reference to fig. 2, and the embodiment further defines the positioning seat 6 in the fourth embodiment, in the embodiment, an caulking groove is respectively processed on the top surfaces of two sides of the arc-shaped surface of the positioning seat 6, a threaded blind hole is processed at the bottom of the caulking groove, a positioning strip-shaped hole is processed on the positioning plate 5, the positioning plate 5 is arranged in the caulking groove, the positioning strip-shaped hole is communicated with the threaded blind hole, a bolt is arranged in the positioning strip-shaped hole and the threaded blind hole, a threaded end of the bolt penetrates through the positioning strip-shaped hole and the threaded blind hole, and the bolt is in threaded connection with the threaded blind hole. The other components and the connection mode are the same as those of the fourth embodiment.
In the present embodiment, the positioning plate 5 is used to restrict the rotation of the vanes in the swirler during the electrical discharge machining, and functions as a baffle.
The specific implementation method nine: the present embodiment is described with reference to fig. 4 and 5, and is further limited to the positioning seat 6 according to the fourth embodiment, in which two connecting grooves are respectively formed on both sides of the bottom plate 1, and other configurations and connecting manners are the same as those of the fourth embodiment.
In the present embodiment, two connecting grooves are respectively formed on both sides of the base plate 1 for fixing an auxiliary tool to a table of an electric discharge machine during machining.
The detailed implementation mode is ten: a method of using a nozzle assembly swirler spark-erosion drilling aid, the method comprising:
the method comprises the following steps: installing any one of the nozzle assembly swirlers of the first to ninth embodiments on a table of an electric discharge machine, and installing an electrode 9 on a tool end of the electric discharge machine;
step two: tightly fixing the indexing disc 2 on a flange plate in the nozzle assembly through a plurality of bolt-nut mechanisms, wherein a bent pipe in the nozzle assembly is arranged in a through groove on the indexing disc 2, and ensuring that the inserted pin 8 and the rhombic inserted pin 11 can be simultaneously inserted into indexing positioning holes which are arbitrarily separated by 30 degrees and are formed between the indexing disc 2 and the rotary positioning seat 4 when the flange plate is tightly fixed;
step three: arranging a nozzle assembly with an index plate 2 on an auxiliary tool, arranging a flange plate in the nozzle assembly on a supporting seat 3, attaching the outer circular surface of the flange plate to the upper arc surface of the supporting seat 3, arranging a shaft section, close to the flange plate, in the nozzle assembly on a rotary positioning seat 4, attaching the outer circular surface of the shaft section to the upper arc surface of the rotary positioning seat 4, arranging a swirler in the nozzle assembly on a positioning seat 6, arranging the end surface of a blade in the swirler on the arc surface in the positioning seat 6, positioning the tail end of the nozzle assembly through a tail thimble, and ensuring that a through hole in the supporting seat 3 and a second index positioning hole in the rotary positioning seat 4 are coaxially arranged with a first index positioning hole in the index plate 2;
step four: after the nozzle assembly in the third step is positioned, the tail thimble is inserted into a positioning hole at the tail end of the nozzle assembly, a positioning plate 5 of a positioning seat 6 is adjusted, the tail end of the positioning plate 5 is arranged between the roots of two swirler vanes nearest to the positioning plate, the nozzle assembly is radially positioned and cannot rotate, a bolt 8 is inserted into one first indexing positioning hole and one second indexing positioning hole corresponding to the first indexing positioning hole, and a rhombic bolt is inserted into the other first indexing positioning hole and the second indexing positioning hole corresponding to the first indexing positioning hole;
step five: controlling a cutter of the machine tool to move to a first punching position preset on the nozzle assembly, and performing electric spark punching machining on the first punching position to supplement machining parameters;
step six: after the first hole is machined, the bolt 8 and the rhombic bolt are pulled out, the positioning plate 5 is adjusted to be pulled away from the space between the two swirler vanes, the indexing disc 2 is rotated according to the deviation angle between the second punching position and the first punching position on the nozzle assembly, the positioning plate is stopped after rotating the preset angle, the through hole in the supporting seat 3 and the second indexing positioning hole in the rotary positioning seat 4 are coaxially arranged with the first indexing positioning hole in the indexing disc 2, and the operation from the fourth step to the fifth step is repeated;
step seven: and repeating the operation from the fourth step to the sixth step, taking the nozzle assembly off the auxiliary tool after primary punching is finished, and performing quality inspection and acceptance on the three processed holes.
Claims (10)
1. An appurtenance that nozzle assembly spare swirler spark-erosion punched, its characterized in that: the auxiliary tool comprises a bottom plate (1), an index plate (2), a supporting seat (3), a rotary positioning seat (4), a positioning plate (5) and a positioning seat (6), wherein the supporting seat (3), the rotary positioning seat (4) and the positioning seat (6) are sequentially arranged on the bottom plate (1) along the length direction of the bottom plate (1), the supporting seat (3), the rotary positioning seat (4) and the positioning seat (6) are arranged in parallel, a center line of the supporting seat (3) along the length direction, a center line of the rotary positioning seat (4) along the length direction and a center line of the positioning seat (6) along the length direction are all positioned on the same straight line, the supporting seat (3) and the rotary positioning seat (4) are positioned at one end of the upper surface of the bottom plate (1), the positioning seat (6) is positioned at the other end of the upper surface of the bottom plate (1), the positioning plate (5) is arranged on the upper surface of the, the nozzle assembly part is arranged on the supporting seat (3), the rotary positioning seat (4) and the positioning seat (6), and the dividing disc (2) is arranged on the outer side of the supporting seat (3).
2. The nozzle assembly swirler spark-erosion assist tool of claim 1, wherein: a through groove is processed on the end part of the index plate (2), one end of the through groove is communicated with the edge of the index plate (2), and the deflection angle of two adjacent first index positioning holes in the index plate (2) is 30 degrees.
3. The nozzle assembly swirler spark-erosion assist tool of claim 2, wherein: the supporting seat (3), the rotary positioning seat (4) and the positioning seat (6) are detachably connected with the bottom plate (1) through a bolt-nut mechanism.
4. The nozzle assembly swirler spark-erosion assist tool of claim 3, wherein: the supporting seat (3), the upper surface of gyration positioning seat (4) and positioning seat (6) all processes there is the arcwall face, the one end of supporting seat (3) has a plurality of through-holes along the processing of cambered surface circumference equidistance, the one end of gyration positioning seat (4) has a plurality of indexing positioning holes No. two along the processing of cambered surface circumference equidistance, every through-hole in supporting seat (3) and the corresponding setting of No. two indexing positioning holes in gyration positioning seat (4), every through-hole in supporting seat (3) and every No. two indexing positioning holes in gyration positioning seat (4) all correspond the setting with an indexing positioning hole on graduated disk (2), and the aperture of an indexing positioning hole and No. two indexing positioning holes is the same, the aperture of through-hole is greater than the aperture of an indexing positioning hole and the aperture of No. two indexing positioning.
5. The nozzle assembly swirler spark-erosion assist tool of claim 4, wherein: a first through hole is processed on the positioning seat (6), a positioning hole is processed on the bottom plate (1), the first through hole is arranged corresponding to the positioning hole, a cylindrical pin (7) is arranged in the first through hole and the positioning hole, and the cylindrical pin (7) is in hard fit with the first through hole and the positioning hole.
6. An auxiliary tool for edm of a swirler of a nozzle assembly as claimed in claim 5, wherein: a plurality of strip-shaped holes are machined in the end face of the index plate (2) at equal intervals along the circumferential direction, each strip-shaped hole corresponds to one connecting hole in the flange plate in the nozzle assembly part, a bolt-nut mechanism is arranged in each strip-shaped hole and one connecting hole in the flange plate, and the index plate (2) is detachably connected with the flange plate in the nozzle assembly part through the bolt-nut mechanisms.
7. The nozzle assembly swirler spark-erosion assist tool of claim 6, wherein: still be equipped with a bolt (8) on graduated disk (2), bolt (8) and graduated disk (2) go up an index locating hole clearance fit, still be equipped with the rhombus bolt on graduated disk (2), the rhombus bolt cartridge is in graduated disk (2) last an index locating hole.
8. The nozzle assembly swirler spark-erosion assist tool of claim 4, wherein: processing respectively has an caulking groove on positioning seat (6) arcwall face both sides top surface, and caulking groove bottom processing has a screw thread blind hole, and processing has a location bar hole on locating plate (5), and locating plate (5) set up in an caulking groove, and location bar hole and screw thread blind hole intercommunication set up, are equipped with a bolt in location bar hole and the screw thread blind hole, and the screw thread end of bolt passes in location bar hole and the screw thread blind hole, and bolt and screw thread blind hole threaded connection.
9. The nozzle assembly swirler spark-erosion assist tool of claim 1, wherein: two connecting grooves are respectively machined on two sides of the bottom plate (1).
10. A method of using a nozzle assembly swirler spark-erosion drilling aid, the method comprising:
the method comprises the following steps: mounting the nozzle assembly swirler edm pilot tool of any one of claims 1 to 9 on a table of an edm machine and mounting the electrode (9) on a tool end of the edm machine;
step two: tightly fixing the indexing disc (2) on a flange plate in the nozzle assembly through a plurality of bolt-nut mechanisms, arranging a bent pipe in the nozzle assembly in a through groove on the indexing disc (2), and ensuring that a bolt (8) and a rhombic bolt (11) can be simultaneously inserted into indexing positioning holes which are arbitrarily separated by 30 degrees of the indexing disc (2) and the rotary positioning seat (4) during tightening;
step three: arranging a nozzle assembly with an index plate (2) on an auxiliary tool, arranging a flange plate in the nozzle assembly on a supporting seat (3), attaching the outer circular surface of the flange plate to the upper arc surface of the supporting seat (3), arranging a swirler in the nozzle assembly on a positioning seat (6), arranging the end surface of a blade in the swirler on the arc surface in the positioning seat (6), positioning the tail end of the nozzle assembly through a tail thimble, and ensuring that a through hole in the supporting seat (3) and a second index positioning hole in a rotary positioning seat (4) are coaxially arranged with a first index positioning hole in the index plate (2);
step four: after the nozzle assembly in the third step is positioned, the tail thimble is inserted into a positioning hole at the tail end of the nozzle assembly, a positioning plate (5) of a positioning seat (6) is adjusted, the tail end of the positioning plate (5) is arranged between the roots of two swirler blades nearest to the tail end of the positioning plate, the nozzle assembly is radially positioned, a bolt (8) is inserted into one first indexing positioning hole and one second indexing positioning hole corresponding to the first indexing positioning hole, and a rhombic bolt is inserted into the other first indexing positioning hole and the second indexing positioning hole corresponding to the first indexing positioning hole;
step five: controlling a cutter of the machine tool to move to a first punching position preset on the nozzle assembly, and carrying out electric spark punching on the first punching position;
step six: after the first hole is machined, the bolt (8) and the rhombic bolt are pulled out, the positioning plate (5) is adjusted to be pulled away from the space between the two swirler vanes, the index plate (2) is rotated according to the deviation angle between the second punching position and the first punching position on the nozzle assembly, the operation is stopped after the preset angle is rotated, the through hole in the supporting seat (3) and the second indexing positioning hole in the rotary positioning seat (4) are coaxially arranged with the first indexing positioning hole in the index plate (2), and the operation from the fourth step to the fifth step is repeated;
step seven: and repeating the operation from the fourth step to the sixth step, taking the nozzle assembly off the auxiliary tool after primary punching is finished, and performing quality inspection and acceptance on the three processed holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693238.2A CN111805020B (en) | 2020-07-17 | 2020-07-17 | Nozzle assembly part swirler electric spark punching auxiliary tool and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693238.2A CN111805020B (en) | 2020-07-17 | 2020-07-17 | Nozzle assembly part swirler electric spark punching auxiliary tool and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111805020A true CN111805020A (en) | 2020-10-23 |
| CN111805020B CN111805020B (en) | 2023-03-24 |
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Family Applications (1)
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| CN202010693238.2A Active CN111805020B (en) | 2020-07-17 | 2020-07-17 | Nozzle assembly part swirler electric spark punching auxiliary tool and use method |
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