CN114932425B - Processing method for assembling inner back arc guide blade T blade root and clamp used by same - Google Patents
Processing method for assembling inner back arc guide blade T blade root and clamp used by same Download PDFInfo
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- CN114932425B CN114932425B CN202210601215.3A CN202210601215A CN114932425B CN 114932425 B CN114932425 B CN 114932425B CN 202210601215 A CN202210601215 A CN 202210601215A CN 114932425 B CN114932425 B CN 114932425B
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- 238000003672 processing method Methods 0.000 title abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 18
- 238000003801 milling Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a processing method for assembling an inner back arc guide blade T blade root and a clamp used by the processing method, which belong to the technical field of blade processing, and aim to solve the problems that the processing mode of a milling machine special for a disc milling or numerical control blade root can produce an over-cutting condition, and the precision of the blade root is difficult to be ensured due to the fact that a tolerance is accumulated after a groove on one side is processed and then the groove on the other side is processed by the positioning and overturning scheme of the groove; the clamp is used for clamping the machined workpiece in the five-axis machining center, and milling the blade root grooves, so that machining accumulated errors are reduced by reducing clamping times, machining efficiency is improved, 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. The universal processing of four-axis and five-axis equipment is realized by using tools such as a connecting disc, and the flexibility of production arrangement is improved.
Description
Technical Field
The invention belongs to the technical field of blade processing, and particularly relates to a processing method for assembling an inner back arc guide blade T-shaped blade root and a clamp used by the processing method.
Background
The assembled blade with the inner back arc structure has high bonding requirement, the inner back arc is processed by adopting a mode of matching a profile milling cutter and a powerful mill at present, the blade root part is separately distributed and processed, and blank materials generally do not need to leave a process head. And the five-axis integrated processing type blade generally needs to reserve at least 40mm process heads for topping pin holes on two sides and stable clamping.
The traditional structure is assembled with inner back arc guide vanes, and most of the vanes are in the form of single-side vane root grooves. The reversing guide blade is a T-shaped blade root, the symmetry degree, concentricity and machining precision of blade root grooves on two sides are strict, the two small shoulders of the blade root are inscribed arcs, and the traditional milling machine machining mode special for the disc milling or numerical control blade root can produce over-cutting conditions. The scheme of processing the groove on one side and then processing the groove on the other side by positioning and overturning the groove on the other side can accumulate tolerance, so that the precision of the blade root is difficult to ensure. The addition of five-axis clamping on the process head only for machining the blade root part causes serious waste of blanks.
Disclosure of Invention
The invention aims to solve the problems that the machining mode of a milling machine special for a disc milling or numerical control blade root can generate an over-cutting condition, and the machining scheme of machining a groove on one side and then positioning and overturning the groove on the other side can accumulate tolerance and is difficult to ensure the precision of the blade root, and further provides a machining method for assembling an inner back arc guide blade T blade root and a clamp used by the machining method;
the fixture comprises a connecting plate, a supporting plate, a longitudinal compression assembly, a transverse clamping assembly and a height adjusting assembly;
the support plate is horizontally arranged on one end face of the connecting plate, one end of the support plate is fixedly connected with one end of the connecting plate, the height adjusting component is arranged on the upper surface of the support plate and is detachably connected with the support plate, the longitudinal compression component is arranged on one side of the height adjusting component and is detachably connected with the support plate, the transverse clamping component is arranged on the other side of the height adjusting component and is arranged opposite to the longitudinal compression component, the transverse clamping component is detachably connected with the support plate, the blade square steel is arranged on the height adjusting component and is detachably connected with the clamp through the longitudinal compression component and the transverse clamping component;
further, the longitudinal compression assembly includes a support riser, a plurality of compression units, and a plurality of connecting pins;
the area of the support plate, which is provided with the longitudinal compression assembly, is provided with a plurality of first positioning blind holes at equal intervals along the length direction of the support vertical plate, the upper surface of the support vertical plate is provided with a plurality of first positioning through holes at equal intervals along the length direction of the support vertical plate, each first positioning blind hole is correspondingly arranged with 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 holes are formed in the upper surface of the support vertical plate at equal intervals along the length direction of the support vertical plate, each compression unit is correspondingly arranged in one first strip hole, and each compression unit is detachably connected with the support vertical plate;
further, the compressing unit comprises a pressing block and a stud nut assembly, the stud nut assembly 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, a second strip-shaped hole is formed in the upper surface of the pressing block along the length direction of the pressing block, the pressing block 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, the nut is arranged above the pressing block, the nut is sleeved on the threaded portion of the stud, and the nut is in threaded connection with the stud;
further, a gasket is arranged between the nut and the pressing block, and the gasket is sleeved on the stud;
further, the transverse clamping assembly comprises a mounting plate, a plurality of first mounting screws and a plurality of clamping bolts;
the area of the support plate, in which the transverse clamping assembly is arranged, is provided with a plurality of first positioning threaded holes in an equidistant manner along the length direction of the mounting plate, the top of the mounting plate is provided with a plurality of first countersunk holes in 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 one first positioning threaded hole, one side of the mounting plate is provided with a plurality of clamping threaded holes in an equidistant manner along the length direction of the mounting plate, each clamping screw is correspondingly inserted in one clamping threaded hole, each clamping screw is in threaded connection with the clamping threaded hole, and the screwing part of each clamping screw is arranged on one side of the mounting plate, which is far away from the support vertical plate;
further, the height adjustment assembly comprises a height spacer and a plurality of second mounting screws;
the area of the supporting plate provided with the height adjusting component is provided with a plurality of second positioning threaded holes in an equidistant manner along the length direction of the height gasket, the top of the height gasket is provided with a plurality of second countersunk holes in a processing manner 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 the threaded part of each second mounting screw is in threaded connection with the corresponding second positioning threaded hole;
further, 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;
the processing method for assembling the T blade root of the inner back arc guide blade is realized by the following steps:
step one: milling a blade square steel base surface to provide a reference surface for clamping blade square steel;
step two: placing the milled blade square steel on a height adjusting assembly, and selecting a height gasket with proper thickness for supporting according to the thickness of the blade square steel;
step three: the pressing block is arranged at the top of the square steel of the blade, and the pressing block (4) is tightly contacted with the square steel of the blade by screwing a nut in the stud nut assembly to longitudinally clamp the square steel of the blade;
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: the clamped blade square steel is moved and installed on a workbench of a five-axis machining center, and a main shaft of a machine tool jumps by 0.01mm; x, Y, Z axis positioning accuracy 0.015 mm/full length; x, Y, Z axis repetition precision is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill blade root slotting, the spindle rotating speed is 3500r/min, and the cutter feeding amount is 500mm/min;
step six: and taking the square steel of the blade with the processed blade root slot out of 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 inner back arc guide blade T blade root and the clamp used by the processing method, under the condition that a blank process head is not added, the blade realizes five-axis single-side stable clamping, the finished blade root is integrated, and the working load of machining the blade root end face and jacking pin holes is reduced while the product precision requirement is met;
the design thought of the clamp is that the blade part of the blade is wrapped as much as possible in clamping, the blade root part to be processed is exposed, the clamping is effectively prevented from being unstable, the radial reference surface center is guaranteed to be consistent with the rotation center of a machine tool, the clamp is of a pressing plate structure, and compared with a traditional cage-mounted structure, the clamp is stronger in universality, more convenient to clamp, easy to adjust, convenient to change materials and simple to manufacture;
the fixture provided by the application can realize that the fixture is clamped only once when being processed by five-axis processing equipment, the processing accumulated error is reduced by reducing the clamping times, the processing efficiency is improved, the processing precision and consistency of the blade are improved, the finished product of the blade meets various high requirements of drawing size, precision, position degree and the like, the processing precision of the root of the blade can be ensured by adopting the integrated processing mode of the root part of the blade, the problems of over-cutting and over-low precision of the product caused by the traditional processing mode are solved, and the subsequent assembly is facilitated;
the universal processing of four-axis and five-axis equipment is realized by using tools such as a connecting disc, and the flexibility of production arrangement is improved. The processing quality of the finished blade product is improved, precious processing period is saved, and good assembly effect is realized. The method disclosed by the invention has been popularized and applied to five-axis integrated finish machining of the T-shaped grooved blade root of the inner back arc moving blade, and has the advantages of good effect, fewer machining steps and obviously improved machining precision.
Drawings
Fig. 1 is a schematic front view of a fixture 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 cut-away view of a middle clamp of the present invention;
in the figure, a connecting plate 1, a supporting plate 2, a supporting vertical plate 3, a pressing block 4, a stud nut component 5, a connecting pin 6, a mounting plate 7, a first mounting screw 8, a clamping bolt 9, a gasket 10, a second mounting screw 11, a supporting rib plate 12 and a square steel 13 blade.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and provides a machining fixture for assembling a T blade root of an inner back arc guide blade, the fixture comprising a connecting plate 1, a supporting plate 2, a longitudinal compression assembly, a transverse clamping assembly and a height adjustment assembly;
the backup pad 2 level sets up on the terminal surface of one end 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, vertical hold-down subassembly sets up in one side of altitude mixture control subassembly, and vertical hold-down subassembly can dismantle with backup pad 2 and be connected, horizontal clamping assembly sets up the opposite side at altitude mixture control subassembly, and horizontal clamping assembly sets up with vertical hold-down subassembly relatively, horizontal clamping assembly 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 is through vertical hold-down subassembly and horizontal clamping assembly and anchor clamps dismantlement connection.
The second embodiment is as follows: the present embodiment is further limited to the longitudinal pressing assembly described in the first embodiment, which includes the support riser 3, the plurality of pressing units, and the plurality of connecting pins 6, described with reference to fig. 1 to 3:
the area that sets up vertical compression assembly in the backup pad 2 has a plurality of locating blind holes along the length direction equidistance processing of supporting riser 3, the upper surface of supporting riser 3 has a plurality of locating through holes along the length direction equidistance processing of supporting riser 3, and every locating blind hole corresponds the setting with a locating through hole, every connecting pin 6 corresponds the setting in a locating blind hole and a locating through hole, and every connecting pin 6 is interference fit setting with a locating blind hole and a locating through hole of place, the upper surface of supporting riser 3 is gone up along the length direction equidistance processing of supporting riser 3 has a plurality of bar holes, every compression unit corresponds the setting in a bar hole, and every compression unit is dismantled with supporting riser 3 and is connected. Other components and connection modes are the same as in the first embodiment.
In the embodiment, the workpiece can be longitudinally clamped through the longitudinal pressing assembly, and the purpose of arranging the strip-shaped holes on the support vertical plate 3 is to adjust the position of the pressing unit according to different sizes of workpieces, so that the purpose of accurate clamping is achieved.
And a third specific embodiment: referring to fig. 1 to 3, the present embodiment is further limited by the pressing unit according to the second embodiment, in this embodiment, the pressing 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 bar hole, a second bar hole is machined 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 bar 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, and is sleeved on the threaded portion of the stud, and the nut is in threaded connection with the stud. Other components and connection modes are the same as those of the second embodiment.
In the embodiment, a cushion block is arranged between the tail part of the pressing block 4 and the supporting plate 2 when the pressing block is used, and is used for supporting the tail part of the pressing block 4, so that the stability of the pressing block 4 during working is ensured.
The specific embodiment IV is as follows: the present embodiment is further limited to the nut described in the third embodiment, in which a washer is provided between the nut and the pressing block 4, and the washer is sleeved on the stud, as described in the third embodiment, with reference to fig. 1 to 3. Other components and connection modes are the same as in the third embodiment.
So arranged, the upper surface of the pressing block 4 is protected.
Fifth embodiment: the present embodiment is further limited to the transverse clamping assembly according to the fourth embodiment, and the transverse clamping assembly includes a mounting plate 7, a plurality of first mounting screws 8, and a plurality of clamping bolts 9, as described in reference to fig. 1 to 3;
the area that sets up horizontal clamping assembly on the backup pad 2 has a plurality of locating screw holes along the length direction equidistance processing of mounting panel 7, the top of mounting panel 7 has a plurality of countersunk holes along the length direction processing of mounting panel 7, and every countersunk hole corresponds the setting with a locating screw hole is coaxial, every mounting screw 8 corresponds the setting in a countersunk hole and a locating screw hole, and the screw thread portion of every mounting screw 8 and the locating screw hole threaded connection of a place, a plurality of clamp screw holes have been processed along the length direction equidistance of mounting panel 7 to one side of mounting panel 7, every clamp bolt 9 corresponds to insert and establishes in a clamp screw hole, and every clamp bolt 9 and the clamp screw hole threaded connection of place, the portion of screwing of every clamp bolt 9 sets up the one side that supports riser 3 is kept away from to mounting panel 7. Other compositions and connection modes are the same as those of the fourth embodiment.
In the embodiment, the transverse clamping assembly is used for transversely clamping the workpiece, and the workpiece is stably clamped through transverse clamping and longitudinal clamping.
Specific embodiment six: the present embodiment is further limited to the height adjustment assembly according to the fifth embodiment, and the height adjustment assembly includes a height pad 10 and a plurality of second mounting screws 11;
the area of setting up high adjusting part on the backup pad 2 has a plurality of No. two locating screw holes along the length direction equidistance processing of high gasket 10, and the top of high gasket 10 has a plurality of No. two countersinks along the length direction processing of high gasket 10, and every No. two countersinks and a No. two locating screw holes coaxial corresponding setting, and every No. two mounting screw 11 corresponds to set up in a No. two countersinks and a No. two locating screw holes, and the screw thread portion of every No. two mounting screw 11 and a No. two locating screw hole threaded connection of place. Other components and connection modes are the same as those of the fifth embodiment.
By means of the arrangement, the clamping height of the workpiece can be adjusted by replacing the thicknesses of the gaskets 10 with different heights, so that the effect of accurate clamping is achieved.
Seventh embodiment: referring to fig. 1 to 3, the present embodiment is further limited to the fixture described in the sixth embodiment, in this embodiment, the fixture further includes two support ribs 12, the two support ribs 12 are symmetrically disposed below the support plate 2 along a center line of the support plate 2 in a width direction, a top of each support rib 12 is fixedly connected with a lower surface of the support plate 2, and one side of each support rib 12 is fixedly connected with one end of the connection plate 1. Other components and connection modes are the same as those of the sixth embodiment.
Thus, the support strength of the support plate 2 can be improved.
Eighth embodiment: referring to fig. 1 to 3, the present embodiment provides a processing method for assembling an inner back arc guide vane T blade root, the method is implemented by the following steps:
step one: milling a basal plane of the blade square steel 13 to provide a reference plane 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 proper thickness according to the thickness of the blade square steel 13 for supporting;
step three: the pressing block 4 is arranged at the top of the square steel blade 13, and the square steel blade 13 is longitudinally clamped by screwing nuts in the stud nut assemblies 5 to enable the pressing block 4 to be in close contact with the square steel blade 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 square steel blade 13, and transversely clamping the square steel blade 13;
step five: the clamped blade square steel 13 is moved and installed on a workbench of a five-axis machining center, and a main shaft of a machine tool jumps by 0.01mm; x, Y, Z axis positioning accuracy 0.015 mm/full length; x, Y, Z axis repetition precision is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill blade root slotting, the spindle rotating speed is 3500r/min, and the cutter feeding amount is 500mm/min;
step six: and taking the blade square steel 13 with the processed blade root slots out of the machine tool for subsequent blade processing.
The present invention has been described in terms of preferred embodiments, but is not limited to the above-described embodiments, and any simple modification, equivalent changes and variation of the above-described embodiments according to the technical principles of the present invention will be within the scope of the present invention when the above-described structures and technical principles can be utilized to make a few equivalent embodiments without departing from the technical scope of the present invention.
Claims (1)
1. The machining method for the T blade root of the assembled inner back arc guide blade is realized based on a machining clamp for the T blade root of the assembled inner back arc guide blade, and the clamp comprises a connecting plate (1), a supporting plate (2), a longitudinal compression assembly, a transverse clamping assembly and a height adjusting assembly;
the supporting plate (2) is horizontally arranged on one end face of the connecting plate (1), one end of the supporting plate (2) is fixedly connected with one end of the connecting plate (1), the height adjusting component is arranged on the upper surface of the supporting plate (2), the height adjusting component is detachably connected with the supporting plate (2), the longitudinal pressing component is arranged on one side of the height adjusting component, the longitudinal pressing component is detachably connected with the supporting plate (2), the transverse clamping component is arranged on the other side of the height adjusting component, the transverse clamping component is opposite to the longitudinal pressing component, the transverse clamping component is detachably connected with the supporting plate (2), the blade square steel (13) is arranged on the height adjusting component, and the blade square steel (13) is detachably connected with the clamp through the longitudinal pressing component and the transverse clamping component;
the longitudinal compression assembly comprises a supporting vertical plate (3), a plurality of compression units and a plurality of connecting pins (6);
the area of the support plate (2) provided with the longitudinal compression assembly is provided with a plurality of first positioning blind holes in an equidistant manner along the length direction of the support vertical plate (3), the upper surface of the support vertical plate (3) is provided with a plurality of first positioning through holes in an equidistant manner along the length direction of the support vertical plate (3), each first positioning blind hole is correspondingly arranged with one first positioning through hole, each connecting pin (6) is correspondingly arranged in one first positioning blind hole and one first positioning through hole, each connecting pin (6) is in interference fit with the first positioning blind hole and the first positioning through hole, a plurality of first strip holes are formed in the upper surface of the support vertical plate (3) in an equidistant manner along the length direction of the support vertical plate (3), each compression unit is correspondingly arranged in one first strip hole, and each compression unit is detachably connected with the support vertical plate (3);
the compression 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 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 formed in 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 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 (4), the nut is arranged above the pressing block (4), the nut is sleeved on the threaded part of the stud, and the nut is in threaded connection with the stud;
a gasket is arranged between the nut and the pressing block (4), and the gasket is sleeved on the stud;
the transverse clamping assembly comprises a mounting plate (7), a plurality of first mounting screws (8) and a plurality of clamping bolts (9);
the area of the support plate (2) provided with the transverse clamping assembly is provided with a plurality of first positioning threaded holes in an equidistant manner along the length direction of the mounting plate (7), the top of the mounting plate (7) is provided with a plurality of first countersunk holes in the length direction of the mounting plate (7), each first countersunk hole and each first positioning threaded hole are coaxially and correspondingly arranged, each first mounting screw (8) is correspondingly arranged in one first countersunk hole and one first positioning threaded hole, the threaded part of each first mounting screw (8) is in threaded connection with the first positioning threaded hole, one side of the mounting plate (7) is provided with a plurality of clamping threaded holes in an equidistant manner along the length direction of the mounting plate (7), each clamping screw (9) is correspondingly inserted in one clamping threaded hole, each clamping screw (9) is in threaded connection with the corresponding clamping threaded hole, and the screwing part of each clamping screw (9) is arranged on one side of the mounting plate (7) far away from the support vertical plate (3);
the height adjusting assembly comprises a height gasket (10) and a plurality of second mounting screws (11);
the support plate (2) is provided with a plurality of second positioning threaded holes at equal intervals along the length direction of the height gasket (10), the top of the height gasket (10) is provided with a plurality of second countersunk holes along the length direction of the height gasket (10), each second countersunk hole and one second positioning threaded hole are coaxially and correspondingly arranged, each second mounting screw (11) is correspondingly arranged in one second countersunk hole and one second positioning threaded hole, and the threaded part of each second mounting screw (11) is in threaded connection with the corresponding second positioning threaded hole;
the clamp also comprises two supporting rib plates (12), wherein the two supporting rib plates (12) are symmetrically arranged below the supporting plate (2) along the central 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);
the method is characterized in that: the method is realized through the following steps:
step one: milling a basal plane of the blade square steel (13) to provide a reference plane 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 proper thickness according to the thickness of the blade square steel (13) for supporting;
step three: the pressing block (4) is arranged at the top of the blade square steel (13), and the pressing block (4) is tightly contacted with the blade square steel (13) by screwing a nut in the stud nut component (5) 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 installed on a workbench of a five-axis machining center, and a main shaft of a machine tool jumps by 0.01mm; x, Y, Z axis positioning accuracy 0.015 mm/full length; x, Y, Z axis repetition precision is 0.008 mm/full length, a groove milling cutter is adopted to roughly and finely mill blade root slotting, the spindle rotating speed is 3500r/min, and the cutter feeding amount is 500mm/min;
step six: and taking the blade square steel (13) with the processed blade root slots out of 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114932425A CN114932425A (en) | 2022-08-23 |
| CN114932425B true CN114932425B (en) | 2024-04-12 |
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| CN202210601215.3A Active 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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