CN114932425A - Machining method for assembling T blade root of inner and back arc guide blade and used clamp - Google Patents
Machining method for assembling T blade root of inner and back arc guide blade and used clamp Download PDFInfo
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- CN114932425A CN114932425A CN202210601215.3A CN202210601215A CN114932425A CN 114932425 A CN114932425 A CN 114932425A CN 202210601215 A CN202210601215 A CN 202210601215A CN 114932425 A CN114932425 A CN 114932425A
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- 238000003754 machining Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 13
- 238000003801 milling Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 12
- 238000003672 processing method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a processing method for assembling a T blade root of an inner and back arc guide blade and a clamp used by the same, belonging to the technical field of blade processing, aiming at solving the problems that an over-cutting condition can be generated in a special milling machine processing mode for a disc milling or numerical control blade root, and the blade root precision is difficult to guarantee due to accumulated tolerance in a scheme of processing a groove on one side and then processing a groove on the other side by positioning and overturning the groove on the other side; the fixture clamps the processed workpiece in the five-axis machining center, and performs root groove milling on the workpiece, reduces accumulated machining errors by reducing clamping times, improves machining efficiency, improves machining precision and consistency of the blade, and enables the finished blade to meet high requirements on drawing size, precision, position degree and the like. Through utilizing frock such as connection pad, realize the commonality of four-axis, five-axis equipment processing, promoted production arrangement flexibility.
Description
Technical Field
The invention belongs to the technical field of blade processing, and particularly relates to a processing method for assembling a T-shaped blade root of an inner-back arc guide blade and a clamp used in the method.
Background
The assembly of the blades with the inner-back arc structure has high requirements on attachment, the inner-back arc is machined in a mode of matching a molded line milling cutter and a powerful mill at present, the blade root part is separately distributed and machined, and a blank material generally does not need to leave a process head. And at least 40mm of process heads are usually reserved for blades of five-axis integrated machining type and are used for punching top pinholes on two sides and stably clamping.
Back arc guide blade in traditional structure assembly is mostly unilateral root slot form. The reversing guide blade is a T-shaped blade root, the requirements on the symmetry, the concentricity and the processing precision of blade root grooves on two sides are strict, two small shoulders of the blade root are in inscribed arcs, and the processing mode of a special milling machine for a traditional disc milling or numerical control blade root can generate an over-cutting condition. The scheme that the groove on one side is machined and then the groove on the other side is machined in a positioning and overturning manner can accumulate tolerance and can hardly ensure the precision of the blade root. Only five-axis clamping machining on the process head is added for machining the blade root part, and then serious waste of the blank can be caused.
Disclosure of Invention
The invention provides a processing method for assembling a T blade root of an inner and back arc guide blade and a clamp used by the same, aiming at solving the problems that an over-cut condition is generated in a disc milling or numerical control special milling machine for the blade root, and the blade root precision is difficult to guarantee due to accumulated tolerance in a scheme of processing a groove on one side and then processing a groove on the other side by positioning and overturning the groove;
a processing clamp for assembling a T blade root of an inner back arc guide blade comprises a connecting plate, a supporting plate, a longitudinal pressing assembly, a transverse clamping assembly and a height adjusting assembly;
the blade square steel is arranged on the height adjusting assembly, and the blade square steel is detachably connected with a clamp through the longitudinal pressing assembly and the transverse clamping assembly;
further, the longitudinal pressing assembly comprises a supporting vertical plate, a plurality of pressing units and a plurality of connecting pins;
a plurality of first positioning blind holes are processed in an area, provided with a longitudinal pressing assembly, of the supporting plate at equal intervals along the length direction of the supporting vertical plate, a plurality of first positioning through holes are processed in the upper surface of the supporting vertical plate at equal intervals along the length direction of the supporting vertical plate, each first positioning blind hole is arranged corresponding to one first positioning through hole, each connecting pin is correspondingly arranged in one first positioning blind hole and one first positioning through hole, each connecting pin is in interference fit with the corresponding first positioning blind hole and the corresponding first positioning through hole, a plurality of first strip-shaped holes are processed in the upper surface of the supporting vertical plate at equal intervals along the length direction of the supporting vertical plate, each pressing unit is correspondingly arranged in one first strip-shaped hole, and each pressing unit is detachably connected with the supporting vertical plate;
furthermore, the compressing unit comprises a pressing block and a stud nut assembly, the stud nut assembly comprises a stud and a nut, the upper part of the stud is a threaded part, the lower part of the stud is a polished rod part, the polished rod part of the stud is correspondingly inserted into a first strip-shaped hole, a second strip-shaped hole is processed on the upper surface of the pressing block along the length direction of the pressing block, the pressing block is correspondingly sleeved on the threaded part of the stud through the second strip-shaped hole, the threaded part of the stud extends out of the top of the pressing block, the nut is arranged above the pressing block, the nut is sleeved on the threaded part of the stud, and the nut is in threaded connection with the stud;
furthermore, a washer is arranged between the nut and the pressing block, and the washer is sleeved on the stud;
further, the lateral clamping assembly comprises a mounting plate, a plurality of first mounting screws and a plurality of clamping bolts;
a plurality of first positioning threaded holes are processed in an area, provided with a transverse clamping assembly, of the supporting plate at equal intervals along the length direction of the mounting plate, a plurality of first countersunk holes are processed in the top of the mounting plate along the length direction of the mounting plate, each first countersunk hole is coaxially and correspondingly arranged with one first positioning threaded hole, each first mounting screw is correspondingly arranged in one first countersunk hole and one first positioning threaded hole, the threaded part of each first mounting screw is in threaded connection with the corresponding first positioning threaded hole, a plurality of clamping threaded holes are processed in one side of the mounting plate at equal intervals along the length direction of the mounting plate, each clamping bolt is correspondingly inserted in one clamping threaded hole, each clamping bolt is in threaded connection with the corresponding clamping threaded hole, and the screwing part of each clamping bolt is arranged on one side, far away from the supporting vertical plate, of the mounting plate;
further, the height adjustment assembly comprises a height gasket and a plurality of mounting screws No. two;
a plurality of second positioning threaded holes are processed in an area, provided with the height adjusting assembly, of the supporting plate at equal intervals along the length direction of the height gasket, a plurality of second countersunk holes are processed in the top of the height gasket along the length direction of the height gasket, each second countersunk hole is coaxially and correspondingly arranged with one second positioning threaded hole, each second mounting screw is correspondingly arranged in one second countersunk hole and one second positioning threaded hole, and a threaded part of each second mounting screw is in threaded connection with the second positioning threaded hole;
furthermore, the clamp also comprises two supporting rib plates, the two supporting rib plates are symmetrically arranged below the supporting plate along the central line of the width direction of the supporting plate, the top of each supporting rib plate is fixedly connected with the lower surface of the supporting plate, and one side of each supporting rib plate is fixedly connected with one end of the connecting plate;
a processing method for assembling a T blade root of an inner back arc guide blade is realized by the following steps:
the method comprises the following steps: milling a square steel base surface of the blade to provide a reference surface for clamping the square steel of the blade;
step two: placing the milled blade square steel on a height adjusting assembly, and selecting a height gasket with proper thickness according to the thickness of the blade square steel for supporting;
step three: arranging a pressing block at the top of the blade square steel, and screwing a nut in the stud nut assembly to enable the pressing block (4) to be in close contact with the blade square steel so as to longitudinally clamp the blade square steel;
step four: screwing the screwing part of the clamping bolt to enable the tail end of the clamping bolt to be in close contact with the side part of the blade square steel, and transversely clamping the blade square steel;
step five: moving and mounting the clamped blade square steel on a workbench of a five-axis machining center, wherein the main shaft of the machine tool jumps by 0.01 mm; x, Y, Z axle positioning accuracy 0.015 mm/full length; x, Y, Z, the repeat precision of the shaft is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill the root of the blade to open the groove, the rotating speed of the main shaft is 3500r/min, and the feed amount of the cutter is 500 mm/min;
step six: and taking down the blade square steel with the processed blade root slot from the machine tool for subsequent blade processing.
Compared with the prior art, the invention has the following beneficial effects:
according to the processing method for assembling the T blade root of the inner and back arc guide blade and the clamp used by the processing method, under the condition that a blank process head is not added, five-axis single-side stable clamping is realized on the blade, a fine machining blade root is integrated, the product precision requirement is met, and meanwhile the workload of machining the end face of the blade root and punching a pin hole is reduced;
the clamp is of a pressure plate structure, and compared with a traditional cage structure, the clamp is stronger in universality, more convenient to clamp, easy to adjust, convenient to change materials and simple to manufacture;
by adopting the clamp provided by the application, only one-time clamping can be realized when five-axis machining equipment is used for machining, the machining accumulated error is reduced by reducing the clamping times, the machining efficiency is improved, the machining precision and consistency of the blade are improved, and the finished blade product meets various high requirements of drawing size, precision, position degree and the like;
through utilizing frock such as connection pad, realize the commonality of four-axis, five-axis equipment processing, promoted production arrangement flexibility. The processing quality of the finished blade product is improved, the precious processing period is saved, and a good assembling effect is realized. The method is popularized and applied to five-axis integrated finish machining of T-shaped grooved blade roots of the moving blades with the inner and back arcs, good effects are achieved, machining steps are reduced, and machining precision is obviously improved.
Drawings
FIG. 1 is a schematic front view of a clamp according to the present invention:
FIG. 2 is a schematic top view of the clamp of the present invention;
FIG. 3 is a schematic right sectional view of the middle clamp of the present invention;
in the figure, 1 connecting plate, 2 supporting plates, 3 supporting vertical plates, 4 pressing blocks, 5 stud-nut assemblies, 6 connecting pins, 7 mounting plates, 8 first mounting screws, 9 clamping bolts, 10 height gaskets, 11 second mounting screws, 12 supporting rib plates and 13 blade square steel are arranged on the supporting vertical plates.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the embodiment provides a processing clamp for assembling the root of an inner-back arc guide blade T, which comprises a connecting plate 1, a supporting plate 2, a longitudinal pressing assembly, a transverse clamping assembly and a height adjusting assembly;
the level of backup pad 2 sets up on the one end terminal surface of connecting plate 1, and the one end of backup pad 2 and the one end fixed connection of connecting plate 1, altitude mixture control subassembly sets up on the upper surface of backup pad 2, and altitude mixture control subassembly can dismantle with backup pad 2 and be connected, vertically compress tightly the subassembly setting in one side of altitude mixture control subassembly, and vertically compress tightly the subassembly and can dismantle with backup pad 2 and be connected, horizontal clamping component sets up the opposite side at altitude mixture control subassembly, and horizontal clamping component sets up with vertical clamping component relatively, horizontal clamping component can dismantle with backup pad 2 and be connected, blade square steel 13 sets up on altitude mixture control subassembly, and blade square steel 13 dismantles with anchor clamps through vertically compressing tightly the subassembly and transversely clamping component and be connected.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the present embodiment further defines the longitudinal pressing assembly described in the first embodiment, and the longitudinal pressing assembly in the present embodiment includes a supporting vertical plate 3, a plurality of pressing units, and a plurality of connecting pins 6:
the regional length direction equidistance processing along supporting riser 3 that sets up the vertical subassembly that compresses tightly in backup pad 2 has a plurality of location blind holes, the upper surface that supports riser 3 has a plurality of positioning hole along the length direction equidistance processing that supports riser 3, and every location blind hole corresponds the setting with a positioning hole, every connecting pin 6 corresponds the setting in a location blind hole and a positioning hole, and every connecting pin 6 is interference fit with a location blind hole and a positioning hole at place and sets up, the processing of length direction equidistance along supporting riser 3 on the upper surface of supporting riser 3 has a plurality of bar holes, every compresses tightly the unit and corresponds the setting in a bar hole, and every compresses tightly the unit and supports riser 3 dismantlements and be connected. Other components and connection modes are the same as those of the first embodiment.
The workpiece can be longitudinally clamped through the longitudinal pressing assembly in the embodiment, and the strip-shaped holes in the supporting vertical plates 3 can be used for adjusting the positions of the pressing units according to different sizes of the workpiece, so that the purpose of accurate clamping is achieved.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, and the embodiment further defines the compressing unit according to the second embodiment, where the compressing unit includes a pressing block 4 and a stud nut assembly 5, the stud nut assembly 5 includes a stud and a nut, the upper portion of the stud is a threaded portion, the lower portion of the stud is a polished rod portion, the polished rod portion of the stud is correspondingly inserted into a first strip-shaped hole, a second strip-shaped hole is processed on the upper surface of the pressing block 4 along the length direction of the pressing block 4, the pressing block 4 is correspondingly sleeved on the threaded portion of the stud through the second strip-shaped hole, the threaded portion of the stud extends out of the top of the pressing block 4, the nut is disposed above the pressing block 4, the nut is sleeved on the threaded portion of the stud, and the nut is in threaded connection with the stud. The other components and the connection mode are the same as those of the second embodiment.
In the embodiment, a cushion block is arranged between the tail of the pressing block 4 and the supporting plate 2 when the pressing block is used, so that the tail of the pressing block 4 is supported, and the stability of the pressing block 4 in working is ensured.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 3, and the present embodiment further defines the nut described in the third embodiment, and in the present embodiment, a washer is provided between the nut and the pressing block 4, and the washer is fitted over the stud. Other components and connection modes are the same as those of the third embodiment.
So set up, be favorable to protecting the upper surface of briquetting 4.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 3, and is further defined by a lateral clamp assembly according to the fourth embodiment, which includes a mounting plate 7, a plurality of first mounting screws 8 and a plurality of clamp bolts 9;
a plurality of first positioning threaded holes are processed in the area, provided with the transverse clamping component, of the supporting plate 2 along the length direction of the mounting plate 7 at equal intervals, a plurality of first countersunk holes are processed at the top of the mounting plate 7 along the length direction of the mounting plate 7, each first counter sink is coaxially and correspondingly arranged with one first positioning threaded hole, each first mounting screw 8 is correspondingly arranged in one first counter sink and one first positioning threaded hole, the thread part of each first mounting screw 8 is in threaded connection with one first positioning threaded hole, a plurality of clamping threaded holes are processed on one side of the mounting plate 7 at equal intervals along the length direction of the mounting plate 7, each clamping bolt 9 is correspondingly inserted into one clamping threaded hole, and each clamping bolt 9 is in threaded connection with the corresponding clamping threaded hole, and the screwing part of each clamping bolt 9 is arranged on one side, far away from the supporting vertical plate 3, of the mounting plate 7. Other components and connection modes are the same as those of the fourth embodiment.
The transverse clamping assembly is used for transversely clamping the workpiece in the embodiment, and the workpiece is stably clamped through transverse clamping and longitudinal clamping.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 3, and is further limited to the height adjusting assembly according to the fifth embodiment, which includes a height gasket 10 and a plurality of second mounting screws 11;
the regional length direction equidistance along high gasket 10 that sets up altitude mixture control subassembly on backup pad 2 is processed and is had a plurality of No. two positioning screw hole, the top of high gasket 10 has a plurality of counterbores along the length direction processing of high gasket 10, and every No. two counterbores sets up with the coaxial correspondence of a No. two positioning screw hole, every No. two mounting screw 11 corresponds the setting in a No. two counterbores and a No. two positioning screw hole, and the screw portion of every No. two mounting screw 11 and No. two positioning screw hole threaded connection at place. The other components and the connection mode are the same as the fifth embodiment mode.
By the arrangement, the clamping height of the workpiece can be adjusted by replacing the thicknesses of the height gaskets 10, so that the effect of accurate clamping is achieved.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 3, and is further limited to the fixture described in the sixth embodiment, and the fixture further includes two support ribs 12, the two support ribs 12 are symmetrically disposed below the support plate 2 along the center line of the support plate 2 in the width direction, the top of each support rib 12 is fixedly connected to the lower surface of the support plate 2, and one side of each support rib 12 is fixedly connected to one end of the connecting plate 1. Other components and connection modes are the same as those of the sixth embodiment.
With this arrangement, the supporting strength of the supporting plate 2 can be improved.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 3, and the embodiment provides a processing method for assembling a root of an inner-back arc guide blade T, which is realized by the following steps:
the method comprises the following steps: milling a base surface of the blade square steel 13 to provide a reference surface for clamping the blade square steel 13;
step two: placing the milled blade square steel 13 on a height adjusting assembly, and selecting a height gasket 10 with a proper thickness according to the thickness of the blade square steel 13 for supporting;
step three: arranging the pressing block 4 at the top of the blade square steel 13, and screwing the nut in the stud nut assembly 5 to enable the pressing block 4 to be in close contact with the blade square steel 13 so as to longitudinally clamp the blade square steel 13;
step four: screwing the screwing part of the clamping bolt 9 to enable the tail end of the clamping bolt 9 to be in close contact with the side part of the blade square steel 13, and transversely clamping the blade square steel 13;
step five: moving and mounting the clamped blade square steel 13 on a workbench of a five-axis machining center, wherein the main shaft of the machine tool jumps by 0.01 mm; x, Y, Z axle positioning accuracy 0.015 mm/full length; x, Y, Z, the repeat precision of the shaft is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill the root of the blade to open the groove, the rotating speed of the main shaft is 3500r/min, and the feed amount of the cutter is 500 mm/min;
step six: and taking down the blade square steel 13 with the processed blade root slot from the machine tool for subsequent blade processing.
The present invention is not limited to the above embodiments, and any person skilled in the art can make many modifications and equivalent variations by using the above-described structures and technical contents without departing from the scope of the present invention.
Claims (8)
1. The utility model provides a back arc leads adds clamping apparatus of blade T blade root in assembly which characterized in that: the clamp comprises a connecting plate (1), a supporting plate (2), a longitudinal pressing assembly, a transverse clamping assembly and a height adjusting assembly;
backup pad (2) level sets up on the one end terminal surface of connecting plate (1), and the one end of backup pad (2) and the one end fixed connection of connecting plate (1), altitude mixture control subassembly sets up on the upper surface of backup pad (2), and altitude mixture control subassembly can dismantle with backup pad (2) and be connected, vertically compress tightly the subassembly and set up the one side at altitude mixture control subassembly, and vertically compress tightly the subassembly and can dismantle with backup pad (2) and be connected, horizontal clamping component sets up the opposite side at altitude mixture control subassembly, and horizontal clamping component sets up with vertically compressing tightly the subassembly relatively, horizontal clamping component can dismantle with backup pad (2) and be connected, blade square steel (13) set up on altitude mixture control subassembly, and blade square steel (13) are connected through vertically compressing tightly subassembly and horizontal clamping component and anchor clamps dismantlement.
2. The machining fixture for assembling the root of the inner-back arc guide blade T as claimed in claim 1, wherein: the longitudinal pressing assembly comprises a supporting vertical plate (3), a plurality of pressing units and a plurality of connecting pins (6);
the regional length direction equidistance processing along supporting riser (3) that sets up the vertical subassembly that compresses tightly in backup pad (2) has a plurality of location blind holes, the upper surface that supports riser (3) has a plurality of positioning hole along the length direction equidistance processing that supports riser (3), and every location blind hole corresponds the setting with a positioning hole, every connecting pin (6) correspond the setting in a location blind hole and a positioning hole, and every connecting pin (6) are interference fit setting with a location blind hole and a positioning hole at place, the upper surface that supports riser (3) is gone up and is processed along the length direction equidistance that supports riser (3) has a plurality of bar holes, every compresses tightly the unit correspondence and sets up in a bar hole, and every compresses tightly the unit and supports riser (3) and dismantles and be connected.
3. The machining fixture for assembling the root of the inner back arc guide blade T as claimed in claim 2, wherein: the compressing unit comprises a pressing block (4) and a stud nut assembly (5), the stud nut assembly (5) comprises a stud and a nut, the upper portion of the stud is a threaded portion, the lower portion of the stud is a polished rod portion, the polished rod portion of the stud is correspondingly inserted into a first strip-shaped hole, the upper surface of the pressing block (4) is provided with a second strip-shaped hole along the length direction of the pressing block (4), the pressing block (4) is correspondingly sleeved on the threaded portion of the stud through the second strip-shaped hole, the threaded portion of the stud extends out of the top of the pressing block (4), the nut is arranged above the pressing block (4), the nut is sleeved on the threaded portion of the stud, and the nut is connected with the stud in a threaded manner.
4. The machining fixture for assembling the root of the inner-back arc guide blade T as claimed in claim 3, wherein: and a washer is arranged between the nut and the pressing block (4), and the washer is sleeved on the stud.
5. The machining fixture for assembling the T-shaped blade root of the inner-back arc guide blade as claimed in claim 4, wherein: the transverse clamping assembly comprises a mounting plate (7), a plurality of first mounting screws (8) and a plurality of clamping bolts (9);
the region of setting up horizontal clamping assembly on backup pad (2) is processed along the length direction equidistance of mounting panel (7) and is had a plurality of location screw hole No. one, the top of mounting panel (7) is processed along the length direction of mounting panel (7) and is had a plurality of counter bores No. one, and every counter bore corresponds the setting with a location screw hole is coaxial, every mounting screw (8) correspond the setting in a counter bore and a location screw hole, and the screw thread portion of every mounting screw (8) and a location screw hole threaded connection at place, one side of mounting panel (7) is processed along the length direction equidistance of mounting panel (7) has a plurality of tight screw holes of clamp, every clamp bolt (9) correspond to be inserted and are established in a tight screw hole of clamp, and every clamp bolt (9) and the tight screw hole threaded connection of clamp at place, the portion of twisting of every clamp bolt (9) sets up the one side of keeping away from supporting riser (3) at mounting panel (7).
6. The machining fixture for assembling the T-shaped blade root of the inner-back arc guide blade as claimed in claim 5, wherein: the height adjusting assembly comprises a height gasket (10) and a plurality of second mounting screws (11);
the processing of the length direction equidistance along high gasket (10) in the region that sets up altitude mixture control subassembly on backup pad (2) has a plurality of No. two positioning screw hole, the processing of the length direction equidistance along high gasket (10) in the top of high gasket (10) has a plurality of No. two counter bores, and every No. two counter bores sets up with the coaxial correspondence of No. two positioning screw hole, every No. two mounting screw (11) correspond the setting in No. two counter bores and No. two positioning screw hole, and the screw portion of every No. two mounting screw (11) and No. two positioning screw hole threaded connection at place.
7. The machining fixture for assembling the root of the inner-back arc guide blade T as claimed in claim 6, wherein: the fixture further comprises two supporting rib plates (12), the two supporting rib plates (12) are symmetrically arranged below the supporting plate (2) along the center line of the width direction of the supporting plate (2), the top of each supporting rib plate (12) is fixedly connected with the lower surface of the supporting plate (2), and one side of each supporting rib plate (12) is fixedly connected with one end of the connecting plate (1).
8. A machining method for assembling a root of an inner and back arc guide blade T, which is realized by using the machining fixture for assembling the root of the inner and back arc guide blade T of any one of claims 1 to 7, and is characterized in that: the method is realized by the following steps:
the method comprises the following steps: milling a base surface of the blade square steel (13) to provide a reference surface for clamping the blade square steel (13);
step two: placing the milled blade square steel (13) on a height adjusting assembly, and selecting a height gasket (10) with a proper thickness according to the thickness of the blade square steel (13) for supporting;
step three: arranging a pressing block (4) at the top of the blade square steel (13), and screwing a nut in the stud nut assembly (5) to enable the pressing block (4) to be in close contact with the blade square steel (13) so as to longitudinally clamp the blade square steel (13);
step four: screwing the screwing part of the clamping bolt (9) to enable the tail end of the clamping bolt (9) to be in close contact with the side part of the blade square steel (13) so as to transversely clamp the blade square steel (13);
step five: the clamped blade square steel (13) is moved and arranged on a workbench of a five-axis machining center, and the main shaft of a machine tool jumps by 0.01 mm; x, Y, Z axle positioning accuracy 0.015 mm/full length; x, Y, Z, the repeat precision of the shaft is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill the root of the blade to open the groove, the rotating speed of the main shaft is 3500r/min, and the feed amount of the cutter is 500 mm/min;
step six: and taking down the blade square steel (13) with the processed blade root slot from the machine tool for subsequent blade processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601215.3A CN114932425B (en) | 2022-05-30 | 2022-05-30 | Processing method for assembling inner back arc guide blade T blade root and clamp used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210601215.3A CN114932425B (en) | 2022-05-30 | 2022-05-30 | Processing method for assembling inner back arc guide blade T blade root and clamp used by same |
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| CN114932425A true CN114932425A (en) | 2022-08-23 |
| CN114932425B CN114932425B (en) | 2024-04-12 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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