CN117583921A - Large curvature titanium alloy sawtooth strip plate combination manufacturing fixture and method - Google Patents
Large curvature titanium alloy sawtooth strip plate combination manufacturing fixture and method Download PDFInfo
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- CN117583921A CN117583921A CN202311434717.2A CN202311434717A CN117583921A CN 117583921 A CN117583921 A CN 117583921A CN 202311434717 A CN202311434717 A CN 202311434717A CN 117583921 A CN117583921 A CN 117583921A
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention belongs to the technical field of metal material machining, and particularly relates to a clamp and a method for manufacturing a large-curvature titanium alloy sawtooth band plate in a combined way. The clamp is a split clamp and comprises a bottom plate, a right band plate scribing block, a left band plate scribing block, a right locating pin, a left locating pin and a drilling mechanism. The invention utilizes a set of separable and recovery type multifunctional combined clamp to replace an independent marking clamp, an assembly clamp, a combined state marking clamp and an outline checking clamp in the assembly welding production process of the sawtooth characteristic band plate assembly, thereby avoiding the positioning transmission error of a plurality of manufacturing tools according to the workpiece and the manufacturing error of the tools. By means of the separable characteristic of the combined clamp at the welding seam position, the welding seam involution assembly precision can be further improved, and the repair coordination difficulty is reduced. Finally, high-precision combined manufacturing of the large-curvature band plate can be realized, the welding seam position, the outer contour precision and the coordination precision of the assembly are higher, and the high-precision combined manufacturing method has higher application value for combined assembly processing of the curved thin-wall sheet metal part type.
Description
Technical Field
The invention belongs to the technical field of metal material machining, and relates to a manufacturing method of a large-curvature titanium alloy saw-tooth band plate combination, in particular to a clamp and a manufacturing method of a large-curvature titanium alloy saw-tooth band plate combination.
Background
The titanium alloy material is commonly used for manufacturing structural members of aviation aircrafts, has the advantages of high temperature resistance, corrosion resistance, low specific gravity and the like, and particularly in the field of manufacturing high-performance fighter machines, the use amount of the titanium alloy parts and the materials can directly reflect the advanced degree of the titanium alloy parts and the materials.
Titanium alloy parts in the fighter aircraft structure are mainly concentrated at the rear fuselage part, wherein typical sheet metal part types comprise skins, band plates, mouth frames, bulkhead frames, stringers and the like, and the metal hard shell structures of the whole aircraft are gradually combined and assembled through connection modes such as riveting, welding and the like. At present, the manufacture of titanium alloy sheet metal parts is influenced by the wide size of a rolled plate of a raw material, parts with larger sizes cannot be processed at one time, and a welding combination mode is often needed.
The thin-wall sawtooth titanium alloy belt plate part is positioned on the inner surface of the skin, is attached to the outer skin and is used for connecting the sectional butt joint skin, is influenced by the curvature of the appearance of the airplane, integrally presents a semicircular arc structure, and meanwhile, is uniformly distributed with local reinforcing nest characteristics. Because the local reinforcing nest is normal bulge characteristic, the local part of the reinforcing nest at the outermost sides of the two ends is provided with a closed angle structure, and the single stamping direction can not be formed at one time, so that the large-curvature band plate is further required to be manufactured in a split welding combination way.
The problem that the reinforcing nest cannot be formed once after the large-curvature band plate is split is solved, the conventional plate is used for realizing single-piece forming, but the problems that the welding seam position of two split parts is not coordinated and difficult to repair, the reinforcing nest is not aligned due to offset, the accumulated deformation of the reference transmission errors of a plurality of sets of tools is large and the like can occur in the butt welding process. There is a need to find an efficient, high precision combinatorial fabrication method.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a novel combination process method, which uses a set of split type integral clamps to realize the manufacture of single parts and the combination manufacture of band plate components. Through realizing the expression of single piece, the outline of subassembly and welding seam butt joint limit simultaneously on a set of anchor clamps, avoided the hole location benchmark transmission error of many sets of frock components, coordinated assembly error, finally realized the accurate manufacturing of big camber sawtooth band plate assembly.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the large-curvature titanium alloy sawtooth band plate combined manufacturing clamp is a split clamp and comprises a bottom plate 1, a right band plate scribing block 2, a left band plate scribing block 3, a right locating pin 4, a left locating pin 5 and a drilling mechanism 6; the bottom plate 1 is provided with a plurality of pin perforations, and the right band plate scribing block 2 and the left band plate scribing block 3 are respectively arranged on the bottom plate 1 through a right locating pin 4 and a left locating pin 5; the large curvature titanium alloy sawtooth band plate to be manufactured is divided into a right band plate b and a left band plate a; the upper surface profiles of the right band plate scribing block 2 and the left band plate scribing block 3 are respectively the same as the profiles of the right band plate b and the left band plate a; the right band plate scribing block 2 and the left band plate scribing block 3 are independently arranged on the bottom plate 1 or are simultaneously arranged on the bottom plate 1 according to the requirements of the manufacturing process; when the right band plate scribing block 2 and the left band plate scribing block are simultaneously installed on the bottom plate 1, the inner side edges of the right band plate scribing block 2 and the left band plate scribing block 3 are in contact with each other, the upper surface molded surface formed after the combination is the same as the molded surface of the complete band plate, and the combined profile is the same as the profile of the complete band plate.
The outer side end of the right band plate scribing block 2 is provided with a drilling mechanism 6, and two sides of the inner side end are provided with two drilling mechanisms 6; the outer side end of the left end band plate scribing block 3 is provided with a drilling mechanism 6, and two sides of the inner side end are provided with two drilling mechanisms 6.
The drilling mechanism 6 comprises a base 6.1, a turnover drilling jig 6.2 and a bolt 6.3; the base 6.1 is arranged on the right band plate scribing block 2 or the left band plate scribing block 3; the turnover drill jig 6.2 is installed on the base 6.1 in a shaft inserting mode, so that the turnover drill jig 6.2 rotates in the middle of a fork lug of the base 6.1 and is fixed through the bolt 6.3.
The method for manufacturing the large-curvature titanium alloy serrated strap plate in a combined way adopts the clamp and comprises the following specific steps:
step 1, taking down the right band plate scribing block 2 and a drilling mechanism 6 on the right band plate scribing block from the bottom plate 1, and reserving the left band plate scribing block 3 and the drilling mechanism 6 on the left band plate scribing block, wherein the welding edge outline of the left band plate scribing block 3 is exposed for scribing;
step 2, taking out a bolt 6.3 of a drilling mechanism 6 on the left band plate scribing block 3, rotating to open a turnover drilling jig 6.2, placing the formed left band plate a rough material on the left band plate scribing block 3 in an open state at the moment, positioning according to a corresponding reinforcing nest on the left band plate scribing block 3, and compacting the left band plate a rough material to be attached and fixed on the upper surface of the left band plate scribing block 3;
step 3, rotating the turnover drilling jig 6.2 on the left band plate scribing block 3 to the upper surface of the left band plate a rough material, mounting a bolt 6.3, fixing a drilling tool to make holes, inserting a positioning pin with a corresponding diameter size into the holes, fixing the left band plate a rough material, scribing a welding line on the back of the left band plate a rough material according to the welding edge profile of the left band plate scribing block 3, removing the bolt 6.3 again, rotating to open the turnover drilling jig 6.2, and taking down the left band plate a rough material after scribing;
step 4, taking down the left band plate scribing block 3 and the drilling mechanism 6 on the left band plate scribing block from the bottom plate 1, and then installing the right band plate scribing block 2 and the drilling mechanism 6 on the right band plate scribing block on the bottom plate 1, wherein the welding edge outline of the right band plate scribing block 2 is exposed for scribing;
step 5, taking out a bolt 6.3 of a drilling mechanism 6 on the right band plate scribing block 2, rotating to open a turnover drilling jig 6.2, placing the formed right band plate b rough material on the right band plate scribing block 2 in an open state at the moment, positioning according to a corresponding reinforcing nest on the left band plate scribing block 3, and compacting the right band plate b rough material to be attached and fixed on the upper surface of the right band plate scribing block 2;
step 6, rotating the turnover drilling jig 6.2 on the right band plate scribing block 2 to the upper surface of the blank of the right band plate b, mounting a bolt 6.3, fixing a drilling tool to make holes, inserting a positioning pin with a corresponding diameter size into the holes, fixing the blank of the right band plate b, scribing a welding line position line on the back of the blank of the right band plate b according to the welding edge contour of the right band plate scribing block 2, removing the bolt 6.3 again, rotating to open the turnover drilling jig 6.2, and taking the blank of the right band plate b after the scribing;
step 7, turning over left-end belt plate a rough material and right-end belt plate b rough material after scribing, cutting and welding the edge rough material according to scribing laser respectively, filing and removing an edge oxide layer, and carrying out surface pickling treatment on the rough material respectively to remove attached impurities and greasy dirt;
step 8, aligning the left-end belt plate a woolen and the right-end belt plate b woolen treated in the step 7 with a welding line, and then welding and combining the left-end belt plate a woolen and the right-end belt plate b woolen to form an integrated belt plate woolen;
step 9, polishing and polishing the weld joint surface of the integrated band plate rough material until the weld joint has no protruding material, carrying out vacuum heat treatment annealing processing on the integrated band plate rough material, and correcting welding deformation;
step 10, simultaneously installing and resetting a right band plate scribing block 2 and a left band plate scribing block 3, taking out a bolt 6.3, rotating and opening a turnover drill jig 6.2, fixing the integrated band plate rough material subjected to heat treatment correction on the upper surfaces of the right band plate scribing block 2 and the left band plate scribing block 3, and scribing the profile shape of the integrated band plate on the back of the band plate according to the profile of the scribing block;
step 11, turning over the overall band plate rough material after scribing, cutting the band plate shape according to scribing laser, filing the cutting edge and removing burrs;
and 12, mounting the cut integrated band plate on the right band plate scribing block 2 and the left band plate scribing block 3 again, positioning by using corresponding reinforcing pits on the surface, and checking the saw tooth profile of the band plate at the moment to finally obtain the large-curvature saw tooth band plate.
The invention has the beneficial effects that: by using the process technology, a set of separable and recovery type multifunctional combined clamp is utilized to replace an independent marking clamp, an assembly clamp, a combined state marking clamp and an outline checking clamp in the assembly welding production flow of the sawtooth characteristic band plate assembly, so that a plurality of sets of manufacturing tools are prevented from transmitting errors and tool manufacturing errors according to the positioning of the workpieces. By means of the separable characteristic of the combined clamp at the welding seam position, the welding seam involution assembly precision can be further improved, and the repair coordination difficulty is reduced. Finally, high-precision combined manufacturing of the large-curvature band plate can be realized, the welding seam position, the outer contour precision and the coordination precision of the assembly are higher, and the high-precision combined manufacturing method has higher application value for combined assembly processing of the curved thin-wall sheet metal part type.
Drawings
FIG. 1 is a schematic view of a large curvature titanium alloy toothed belt plate;
FIG. 2 is a schematic view showing a large curvature zigzag belt plate in use on the manufacturing jig of the present invention;
FIG. 3 is a schematic view showing a state of inspection of a small end band plate on a manufacturing jig of the present invention;
fig. 4 is a schematic view showing a state of inspection of a large end band plate on a manufacturing jig of the present invention;
FIG. 5 is a schematic view showing the assembled state of the manufacturing jig of the invention;
fig. 6 is a schematic view of a drilling mechanism on an inventive manufacturing fixture.
In the figure: 1, a bottom plate; 2, a scribing block is arranged at the right end of the belt plate; 3, a scribing block is arranged at the left end of the band plate; 4, right locating pins; 5, a left locating pin; 6, a drilling mechanism; 6.1, a base; 6.2 turning over the drilling jig; 6.3, a bolt; a left end band plate; b right end band plate.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and technical schemes.
As shown in fig. 1, the large curvature titanium alloy saw-tooth band plate to be manufactured is divided into a right band plate b and a left band plate a according to the requirements of actual working conditions.
As shown in fig. 2, the large-curvature titanium alloy serrated strap combination manufacturing clamp is a split clamp and comprises a bottom plate 1, a right strap scribing block 2, a left strap scribing block 3, a right locating pin 4, a left locating pin 5 and a drilling mechanism 6. The bottom plate 1 is used for supporting and bearing other parts of the upper clamp and the band plate burrs; the right band plate scribing block 2 is used for positioning and scribing the right band plate b, the molded surface of the right band plate scribing block is the same as the surface of the right band plate b, the right band plate scribing block has 3 convex hull characteristics, the outer edge contour is the final band plate shape contour, and the right band plate scribing block and the bottom plate 1 are positioned through three right positioning pins 4 and are attached and fixed by gravity; the left band plate scribing block 3 is used for positioning and scribing the left band plate a, the molded surface of the left band plate is the same as the surface of the left band plate a, the left band plate has 2 convex hull characteristics, the outer edge contour is the final band plate shape contour, and the left band plate scribing block and the bottom plate 1 are positioned through three left positioning pins 5 and are attached and fixed by gravity; the right end band plate scribing block 2 and the left end band plate scribing block 3 are respectively processed into a bottom plane, a welding joint surface and other molded surfaces in a numerical control mode, are horizontally placed on the bottom plate 1 by gravity and are positioned by using positioning pins, and then are completely attached and butted at the band plate welding seam position to form a complete combined band plate molded surface and profile.
The outer side end of the right band plate scribing block 2 is provided with a drilling mechanism 6, and two sides of the inner side end are provided with two drilling mechanisms 6; the outer side end of the left end band plate scribing block 3 is provided with a drilling mechanism 6, and two sides of the inner side end are provided with two drilling mechanisms 6.
As shown in fig. 6, the drilling mechanism 6 is a universal module and comprises a base 6.1, a turnover drill jig 6.2 and a bolt 6.3; taking the right band plate scribing block 2 as an example, the base 6.1 and the right band plate scribing block 2 are connected through 2 pins and 2 screws, so that positioning and tight installation can be guaranteed, the overturning jig 6.2 and the base 6.1 are connected through a shaft, the overturning jig 6.2 can rotate in the middle of a fork lug of the base 6.1, the overturning jig can rotate to the outer side of a scribing block matrix under the condition of no use, the use of internal scribing is not affected, the overturning jig is overturned to the upper surface of the matrix during use, and the pins 6.3 are used for penetrating through the overturning jig 6.2 and the fork lug holes of the base 6.1 to form fixation, so that the axial position of a space positioning hole is finally obtained, and the pneumatic or electric drill bit can be utilized for drilling.
The right end band plate b and the left end band plate a are respectively molded and then are combined and welded into a whole, and a thermal molding process is adopted for manufacturing the single band plate, so that the unfolding woolen with the compensation allowance is used. When the left band plate a is manufactured, as shown in fig. 3, taking out the right band plate scribing block 2 and the right locating pin 4, only keeping the left band plate scribing block 3, after forming, matching and locating the left band plate a rough material with the convex hull characteristics of the 2 parts of the left band plate scribing block 3 by utilizing the 2 parts of reinforcing pits, and then manufacturing locating holes of the 3 parts and drawing a position line of a welding edge by using a drilling mechanism 6 on the left band plate scribing block 3; when the right band plate b is manufactured, as shown in fig. 4, taking out the left band plate scribing block 3 and the left locating pin 5, only keeping the right band plate scribing block 2, matching and locating the 3 convex hull features on the formed band plate b blank by using 3 reinforcing pits and the 3 convex hull features on the right band plate scribing block 2, and then manufacturing 3 locating holes and drawing a position line of a welding edge by using a drilling mechanism 6 on the right band plate scribing block 2; in this way, a weld line of similar shape can be obtained on the same set of clamps.
The right-end band plate b and the left-end band plate a are welded by using other special fixtures respectively, so that positioning transmission can be omitted, and the welding band plate can be cut directly according to scribing.
After the unilateral band plate is formed, the convex hull features are utilized to position on the scribing block, 3 drilling mechanisms are respectively used for manufacturing positioning holes, the positioning coordination during rough cutting of the margin can be used, the positioning coordination of the welding edges on the butt welding clamp after scribing and cutting can be realized, and the batch production mode of once positioning, namely welding, during welding can be realized, so that the precision is high and the efficiency is high.
As shown in fig. 5, after the right end band plate scribing block 2 and the left end band plate scribing block 3 are positioned and assembled at the same time, the edge profile of the right end band plate scribing block and the left end band plate scribing block forms a saw-tooth-shaped outer profile of the whole band plate, so that the whole scribing of the band plate after welding can be realized, the saw-tooth-shaped outer profile is cut by utilizing the positioning Kong Jingzhun, the position accuracy of the welding seam position relative to the outer profile of the assembly is relatively high, and the position degree is ensured to be relatively easy.
The method for manufacturing the large-curvature titanium alloy serrated strap plate by adopting the clamp comprises the following specific steps:
step 1, as shown in fig. 3, removing the right locating pin 4, removing the right band plate scribing block 2 together with the drilling mechanism 6 thereon from the bottom plate 1, and only remaining the left band plate scribing block 3 and the left locating pin 5, wherein the welding edge outline of the left band plate scribing block is exposed and can be used for scribing;
step 2, as shown in fig. 3, taking out the bolt 6.3, rotating to open the turnover jig 6.2, placing the left end band plate scribing block 3 with the upper surface in an open state, placing the left end band plate a blank after molding on the scribing block 3, positioning according to the strengthening nest at the position 2 inside, and compacting the whole part to be attached and fixed;
step 3, rotating the turnover drilling jig 6.2 to the upper surface of the left-end belt plate a rough material, installing a bolt 6.3, drilling holes by using a drilling tool after fixing, sequentially drilling 3 positioning holes, inserting positioning pins with corresponding diameter sizes, fixing the left-end belt plate a rough material, scribing a welding line on the back of the left-end belt plate a rough material according to the welding edge profile of the left-end belt plate scribing block 3, removing the bolt 6.3 again, rotating to open the turnover drilling jig 6.2, and taking down the left-end belt plate a rough material;
step 4, as shown in fig. 4, removing the left locating pin 5, removing the left band plate scribing block 3 and the drilling mechanism 6 thereon from the bottom plate 1, and only remaining the right band plate scribing block 2, wherein the welding edge contour of which is exposed and can be used for scribing;
step 5, as shown in fig. 4, taking out the bolt 6.3, rotating to open the turnover jig 6.2, placing the formed blank of the right-end band plate b on the upper molded surface of the right-end band plate scribing block at the moment, positioning according to the reinforcing nest at the 3 parts inside, and compacting the whole part to be attached and fixed;
step 6, rotating the turnover drilling jig 6.2 to the upper surface of the blank of the right-end band plate b, installing a bolt 6.3, drilling holes by using a drilling tool after fixing, sequentially drilling 3 positioning holes, inserting positioning pins with corresponding diameter sizes, fixing the blank, scribing a welding line on the back of the blank of the right-end band plate b according to the welding edge contour of the right-end band plate scribing block 2, removing the bolt 6.3 again, rotating and opening the turnover drilling jig 6.2, and taking down the blank of the right-end band plate b;
step 7, turning over the rough material b of the right-end band plate and the rough material a of the left-end band plate, respectively cutting and welding the rough material b of the left-end band plate by using a general clamping fixture according to scribing laser, filing and removing an edge oxide layer, and respectively carrying out surface pickling treatment on the rough material to remove attached impurities, greasy dirt and the like;
step 8, positioning the band plate a and the band plate b by using a special welding fixture according to the 3 positioning holes, and welding and combining after aligning the welding lines to enable the left-end band plate a and the right-end band plate b to be connected into an integrated structure;
step 9, polishing the surface of the welded seam after welding until the welded seam is free of protruding materials, carrying out vacuum heat treatment annealing processing on the combined integral band plate, clamping by using a heat treatment clamp, positioning by using 6 positioning pins, and correcting welding deformation;
step 10, as shown in fig. 5, the right band plate scribing block 2 and the left band plate scribing block 3 are installed and reset at the same time to form a whole, the bolt 6.3 is taken out, the turnover drilling jig 6.2 is opened in a rotating mode, the whole band plate after heat treatment correction is positioned on the upper surface of a clamp according to the positioning pin at the 6 position to be fixed, and the outline shape of the whole band plate is scribed on the back of the band plate according to the outline of the scribing block;
step 11, turning over the integrated band plate rough material, cutting the appearance of the assembly by using a cutting fixture according to scribing laser, filing the cutting edge and removing burrs;
and step 12, as shown in fig. 2, the cut integral combined band plate is mounted on a clamp again, the 5 reinforcing nest molded surfaces are utilized for positioning, at the moment, the saw-tooth profile of the band plate is inspected, and finally the large-curvature saw-tooth band plate is obtained.
Claims (2)
1. The large-curvature titanium alloy saw-tooth band plate combined manufacturing clamp is characterized by comprising a bottom plate (1), a right band plate scribing block (2), a left band plate scribing block (3), a right locating pin (4), a left locating pin (5) and a drilling mechanism (6); the bottom plate (1) is provided with a plurality of pin perforations, and the right band plate scribing block (2) and the left band plate scribing block (3) are respectively arranged on the bottom plate (1) through a right locating pin (4) and a left locating pin (5); the large curvature titanium alloy sawtooth band plate to be manufactured is divided into a right band plate (b) and a left band plate (a); the upper surface profiles of the right-end band plate scribing block (2) and the left-end band plate scribing block (3) are respectively the same as the profiles of the right-end band plate (b) and the left-end band plate (a); the right band plate scribing block (2) and the left band plate scribing block (3) are independently arranged on the bottom plate (1) or are simultaneously arranged on the bottom plate (1) according to the requirements of the manufacturing process; when the right band plate scribing block (2) and the left band plate scribing block are simultaneously installed on the bottom plate (1), the inner edges of the right band plate scribing block (2) and the left band plate scribing block (3) are in contact with each other, the upper surface molded surface formed after the combination is the same as the molded surface of the complete band plate, and the combined profile is the same as the profile of the complete band plate;
the outer side end of the right-end band plate scribing block (2) is provided with a drilling mechanism (6), and two sides of the inner side end are provided with two drilling mechanisms (6); the outer side end of the left end band plate scribing block (3) is provided with a drilling mechanism (6), and two sides of the inner side end are provided with two drilling mechanisms (6);
the drilling mechanism (6) comprises a base (6.1), a turnover drilling jig (6.2) and a bolt (6.3); the base (6.1) is arranged on the right band plate scribing block (2) or the left band plate scribing block (3); the turnover drill jig (6.2) is installed on the base (6.1) in a shaft inserting mode, so that the turnover drill jig (6.2) rotates in the middle of a fork lug of the base (6.1) and is fixed through a bolt (6.3).
2. The method for manufacturing the large-curvature titanium alloy serrated strap plate by combining, which adopts the clamp as claimed in claim 1, is characterized by comprising the following specific steps:
step 1, taking down a right band plate scribing block (2) and a drilling mechanism (6) on the right band plate scribing block from a bottom plate (1), and reserving a left band plate scribing block (3) and the drilling mechanism (6) on the left band plate scribing block, wherein the welding edge outline of the left band plate scribing block (3) is exposed for scribing;
step 2, taking out a bolt (6.3) of a drilling mechanism (6) on the left band plate scribing block (3), rotating to open a turnover drilling jig (6.2), placing the formed left band plate (a) blank on the left band plate scribing block (3), positioning according to a corresponding reinforcing nest on the left band plate scribing block (3), and pressing the left band plate (a) blank to be attached and fixed on the upper surface of the left band plate scribing block (3);
step 3, rotating a turnover drill jig (6.2) on a left band plate scribing block (3) to the upper surface of the blank of the left band plate (a), mounting a bolt (6.3), drilling holes by a drilling tool after fixing, inserting positioning pins with corresponding diameter sizes into the holes, fixing the blank of the left band plate (a), scribing a welding line on the back surface of the blank of the left band plate (a) according to the welding edge profile of the left band plate scribing block (3), removing the bolt (6.3) again, rotating and opening the turnover drill jig (6.2), and taking down the scribed blank of the left band plate (a);
step 4, taking down the left band plate scribing block (3) and a drilling mechanism (6) on the left band plate scribing block from the bottom plate (1), and then installing the right band plate scribing block (2) and the drilling mechanism (6) on the right band plate scribing block on the bottom plate (1), wherein the welding edge outline of the right band plate scribing block (2) is exposed for scribing;
step 5, taking out a bolt (6.3) of a drilling mechanism (6) on the right-end band plate scribing block (2), rotating to open a turnover drilling jig (6.2), placing the formed coarse material of the right-end band plate (b) on the right-end band plate scribing block (2), positioning according to a corresponding reinforcing nest on the left-end band plate scribing block (3), and pressing the coarse material of the right-end band plate (b) to be attached and fixed on the upper surface of the right-end band plate scribing block (2);
step 6, rotating a turnover drill jig (6.2) on a right-end band plate scribing block (2) to the upper surface of the blank of the right-end band plate (b), mounting a bolt (6.3), drilling holes by a drilling tool after fixing, inserting positioning pins with corresponding diameter sizes into the holes, fixing the blank of the right-end band plate (b), scribing a welding line on the back of the blank of the right-end band plate (b) according to the welding edge profile of the right-end band plate scribing block (2), removing the bolt (6.3) again, rotating and opening the turnover drill jig (6.2), and taking down the blank of the right-end band plate (b) after scribing;
step 7, turning the left-end band plate (a) rough material and the right-end band plate (b) rough material after scribing, cutting and welding the edge rough material according to scribing laser respectively, filing and removing an edge oxide layer, and carrying out surface pickling treatment on the rough material respectively to remove attached impurities and greasy dirt;
step 8, performing welding combination on the left-end belt plate (a) woolen and the right-end belt plate (b) woolen treated in the step 7 after aligning with the welding seam, so that the left-end belt plate (a) woolen and the right-end belt plate (b) woolen are connected into an integrated belt plate woolen;
step 9, polishing and polishing the weld joint surface of the integrated band plate rough material until the weld joint has no protruding material, carrying out vacuum heat treatment annealing processing on the integrated band plate rough material, and correcting welding deformation;
step 10, simultaneously installing and resetting a right band plate scribing block (2) and a left band plate scribing block (3), taking out a bolt (6.3), rotating and opening a turnover drill jig (6.2), fixing the integrated band plate rough material subjected to heat treatment correction on the upper surfaces of the right band plate scribing block (2) and the left band plate scribing block (3), and scribing the profile shape of the integrated band plate on the back of the band plate according to the profile of the scribing block;
step 11, turning over the overall band plate rough material after scribing, cutting the band plate shape according to scribing laser, filing the cutting edge and removing burrs;
and 12, mounting the cut integrated band plate on the right band plate scribing block (2) and the left band plate scribing block (3) again, positioning by utilizing corresponding reinforcing pits on the surface, and at the moment, checking the saw-tooth profile of the band plate to finally obtain the large-curvature saw-tooth band plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311434717.2A CN117583921B (en) | 2023-11-01 | 2023-11-01 | Assembly manufacturing fixture and method for large curvature titanium alloy serrated strip plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311434717.2A CN117583921B (en) | 2023-11-01 | 2023-11-01 | Assembly manufacturing fixture and method for large curvature titanium alloy serrated strip plates |
Publications (2)
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| CN120206179A (en) * | 2025-04-30 | 2025-06-27 | 沈阳飞机工业（集团）有限公司 | A method for accurately manufacturing thick strip plates with sawtooth profile gradient materials |
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