Universal tension straightening clamping jaw for titanium alloy extruded profile with complex section

Abstract

The utility model provides a general type complex section titanium alloy extruded section tension straightening clamping jaw which comprises two wedge-shaped pliers and two plane pliers, a plurality of first fine threads are arranged on the opposite sides of the two wedge-shaped pliers, and a plurality of second fine threads are arranged on the opposite sides of the two plane pliers. And the workpiece main body is arranged between the two wedge-shaped pliers and the two plane pliers. According to the universal tension straightening clamping jaw for the titanium alloy extruded section with the complex section, the two wedge-shaped pliers with the first fine threads and the two plane pliers with the second fine threads are operated in a matched mode, the universality is high, the universal tension straightening clamping jaw can be used for sections with the same section, and the universality is high. The complexity of jaws of similar section profiles is reduced, the cost is reduced, the efficiency is improved, and the straightening production difficulty of the complicated section titanium alloy profiles can be effectively reduced by selecting proper process parameters through a reasonable tension straightening process route.

Description

Technical Field

[0001] The utility model relates to the field of titanium alloy material preparation and processing, in particular to a universal tension straightening clamping jaw for complex-section titanium alloy extruded profiles. Background Art

[0002] Titanium alloy extrusions are widely used in the aerospace industry due to their high structural efficiency and weight-reduction properties. They are often used directly as aircraft components, such as stringers or secondary load-bearing frames, significantly reducing aircraft weight and improving loading capacity and maneuverability. Titanium industry powerhouses like the United States and Russia have been developing titanium alloy extrusions since the 1960s, and their production and application technologies are now well-established. Titanium alloy extrusions are widely used in various aircraft components.

[0003] In recent years, titanium alloys have been increasingly used in aircraft structural components to achieve the goal of weight reduction and improved structural efficiency. The cross-sectional shapes of these structural parts are becoming increasingly complex, the cross-sectional shapes are more compact, and they require one-piece molding and long molding lengths. These characteristics greatly increase the overall processing difficulty, especially in straightening and shaping. Straightening devices are used to assist in the straightening operation of the workpiece.

[0004] However, the current straightening device often produces shape defects such as bending and twisting during the processing of titanium alloy extruded profiles due to various factors.

[0005] Poor applicability: Traditional clamping jaws are usually designed for simple cross-section profiles, such as circular, rectangular and other simple geometric shapes. For complex cross-section titanium alloy extruded profiles, the existing jaws are difficult to fully fit the surface of the profile, resulting in uneven distribution of clamping force during the straightening process.

[0006] Easy to cause damage: The surface shape of complex cross-section profiles is irregular. When using traditional jaws for clamping, local stress concentration is likely to occur on the profile surface, resulting in scratches, indentations and other damage on the profile surface. This has an impact on titanium alloy profiles that have extremely high surface quality requirements.

[0007] Low straightening accuracy: Since the existing jaws cannot adapt well to the shape of complex cross-section profiles, they cannot accurately control the stress conditions of each part of the profile during the straightening process, which in turn affects the straightening accuracy and makes it difficult to meet the strict requirements of modern high-end manufacturing for the shape accuracy of titanium alloy profiles.

[0008] Therefore, it is necessary to provide a universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw to solve the above technical problems. Utility Model Content

[0009] The utility model provides a universal tension straightening clamping jaw for titanium alloy extruded profiles with complex cross-sections, which solves the problem that the existing clamping jaws have limitations in use.

[0010] In order to solve the above technical problems, the utility model provides a universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles, comprising:

[0011] Two wedge-shaped pliers and two flat pliers, wherein the two wedge-shaped pliers are provided with a plurality of first fine teeth on opposite sides thereof, and the two flat pliers are provided with a plurality of second fine teeth on opposite sides thereof;

[0012] A workpiece body is provided between the two wedge-shaped pliers and the two plane pliers.

[0013] Preferably, one side of the two wedge-shaped pliers and the two flat-surface pliers is connected with a rectangular block.

[0014] Preferably, the surfaces of the two wedge-shaped pliers, the two flat pliers and the plurality of rectangular blocks are all provided with mounting through holes.

[0015] Preferably, the two wedge pliers and the two flat pliers are used for clamping the workpiece body.

[0016] Preferably, a disassembly assembly is provided between the two wedge-shaped pliers and the two flat pliers and the plurality of rectangular blocks. The disassembly assembly includes a disassembly block, and a disassembly groove adapted to the disassembly block is provided on the surface of the wedge-shaped pliers.

[0017] Preferably, rubber pads are bonded to both the left and right sides of the inner wall of the disassembly groove.

[0018] Preferably, a fixing bolt is provided between the wedge-shaped pliers and the disassembly block.

[0019] Compared with the related art, the universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles provided by the utility model has the following beneficial effects:

[0020] The utility model provides a universal tension straightening clamping jaw for titanium alloy extruded profiles with complex cross-sections. Through the coordinated operation between two wedge-shaped pliers with multiple first fine teeth and two flat pliers with multiple second fine teeth, the utility model has strong versatility and can be used for profiles with similar cross-sections, thereby reducing the complexity of the jaws for profiles with similar cross-sections, reducing costs and increasing efficiency. A reasonable tension straightening process route and the selection of appropriate process parameters can effectively reduce the difficulty of straightening production of such titanium alloy profiles with complex cross-sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a structural schematic diagram of a first embodiment of a universal tension straightening clamping jaw for complex-section titanium alloy extruded profiles provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown;

[0023] Figure 3 for Figure 1 A schematic diagram of the overall planar structure of the device shown;

[0024] Figure 4 Schematic diagram of the structure for fixing the workpiece;

[0025] Figure 5 This is a structural schematic diagram of a second embodiment of a universal tension straightening clamping jaw for complex-section titanium alloy extruded profiles provided by the utility model;

[0026] Figure 6 for Figure 5 An enlarged schematic diagram of part A is shown.

[0027] Numbers in the figure: 1, wedge pliers; 2, flat pliers; 3, first fine thread; 4, second fine thread; 5, rectangular block; 6, mounting hole;

[0028] 7. Disassembly assembly; 71. Disassembly block; 72. Disassembly slot; 73. Rubber pad; 74. Fixing bolt;

[0029] 8. Workpiece body. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0031] First embodiment

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in, Figure 1 This is a structural schematic diagram of a first embodiment of a universal tension straightening clamping jaw for complex-section titanium alloy extruded profiles provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the overall three-dimensional structure of the device shown; Figure 3 for Figure 1 A schematic diagram of the overall planar structure of the device shown; Figure 4 A universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles, comprising:

[0033] Two wedge pliers 1 and two flat pliers 2, wherein the two wedge pliers 1 are provided with a plurality of first fine teeth 3 on opposite sides thereof, and the two flat pliers 2 are provided with a plurality of second fine teeth 4 on opposite sides thereof;

[0034] The workpiece body 8 is arranged between the two wedge pliers 1 and the two flat pliers 3 .

[0035] The first fine teeth 3 provided on the two wedge-shaped pliers 1 and the second fine teeth 4 provided on the plane pliers 2 are both pentahedral pyramidal fine teeth.

[0036] A rectangular block 5 is connected to one side of the two wedge pliers 1 and the two flat pliers 2 .

[0037] Mounting through holes 6 are formed on the surfaces of the two wedge pliers 1 , the two flat pliers 2 and the plurality of rectangular blocks 5 .

[0038] The two wedge pliers 1 and the two flat pliers 2 are used for clamping the workpiece body 8 .

[0039] When loading, the jaws can be loosened and the material placed in the center of the two wedge-shaped pliers 1 and the two flat-surface pliers 2. First clamp the two flat-surface pliers 2, then the two wedge-shaped pliers 1. After adjusting the profile to the center, clamp the four jaws simultaneously. Pay attention to the flat contact of the clamping. After clamping one end, clamp the other end. The clamped end can be appropriately deflected according to the actual twisting of the profile to facilitate adjustment and clamping of the other end. The heating temperature for tension straightening is 680-700℃, the current value is 4600-5000A, and the current display is stable. At this temperature, tensioning is performed with a tension of 23-30 tons and a stable tension display. Straighten first and then twist. Correct the straightness first, then the twisting. Then keep warm for a period of time to ensure a smooth release of stress.

[0040] The working principle of the universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles provided by the utility model is as follows:

[0041] During use, when straightening the workpiece body 8, first place the workpiece body 8 between the two wedge pliers 1 and the two plane pliers 2 inside the device, then start the device to push the two wedge pliers 1 and the two plane pliers 2 to squeeze and straighten the workpiece body 8.

[0042] Compared with the related art, the universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles provided by the utility model has the following beneficial effects:

[0043] The utility model provides a universal tension straightening clamping jaw for titanium alloy extruded profiles with complex cross-sections. Through the coordinated operation between two wedge-shaped pliers 1 with multiple first fine teeth 3 and two flat pliers 2 with multiple second fine teeth 4, the utility model has strong versatility and can be used for profiles with similar cross-sections, thereby reducing the complexity of jaws for profiles with similar cross-sections, reducing costs and increasing efficiency. A reasonable tension straightening process route and the selection of appropriate process parameters can effectively reduce the difficulty of straightening production of such titanium alloy profiles with complex cross-sections.

[0044] Second embodiment

[0045] Please refer to Figure 5 and Figure 6 Based on the first embodiment of this application, which provides a universal tension-straightening clamping jaw for titanium alloy extruded profiles with complex cross-sections, the second embodiment of this application provides another universal tension-straightening clamping jaw for titanium alloy extruded profiles with complex cross-sections. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0046] Specifically, the difference of the universal complex-section titanium alloy extruded profile tension straightening clamping jaws provided in the second embodiment of the present application is that, in the universal complex-section titanium alloy extruded profile tension straightening clamping jaws, a disassembly assembly 7 is provided between the two wedge-shaped pliers 1 and the two flat pliers 2 and the multiple rectangular blocks 5, and the disassembly assembly 7 includes a disassembly block 71, and the surface of the wedge-shaped pliers 1 is provided with a disassembly groove 72 adapted to the disassembly block 71.

[0047] One end of the disassembly block 71 is connected to the rectangular block 5. The disassembly block 71 and the disassembly groove 72 are adapted to be T-shaped. A fixing hole adapted to the fixing bolt 74 is provided on the rear inner wall of the disassembly groove 72. The rubber pad 73 plays the role of squeezing the disassembly block 71 when in use.

[0048] Rubber pads 73 are bonded to both the left and right sides of the inner wall of the disassembly groove 72 .

[0049] A fixing bolt 74 is provided between the wedge pliers 1 and the disassembly block 71 .

[0050] The working principle of the universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles provided by the utility model is as follows:

[0051] During use, when disassembling the plane pliers 2 or the wedge pliers 1 and the rectangular block 5, first remove the fixing bolt 74 between the disassembly block 71 and the plane pliers 2 or the wedge pliers 1. After the fixing bolt 74 is removed, pull the plane pliers 2 or the wedge pliers 1 to separate the disassembly groove 72 from the disassembly block 71.

[0052] Compared with the related art, the universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles provided by the utility model has the following beneficial effects:

[0053] The utility model provides a universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles. A disassembly component 7 is provided between two wedge pliers 1 and two flat pliers 2 and a plurality of rectangular blocks 5 to facilitate disassembly and installation of the wedge pliers 1 or the flat pliers 2 on the device.

[0054] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A universal tension straightening clamping jaw for complex cross-section titanium alloy extruded profiles, characterized by: include: Two wedge-shaped pliers and two flat pliers, wherein the two wedge-shaped pliers are provided with a plurality of first fine teeth on opposite sides thereof, and the two flat pliers are provided with a plurality of second fine teeth on opposite sides thereof; The workpiece body is arranged between the two wedge-shaped pliers and the two flat pliers; one side of the two wedge-shaped pliers and the two flat pliers is connected with a rectangular block.

2. The universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw according to claim 1 is characterized in that: The surfaces of the two wedge-shaped pliers, the two flat pliers and the plurality of rectangular blocks are all provided with mounting through holes.

3. The universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw according to claim 1 is characterized in that: The two wedge pliers and the two plane pliers are used for clamping the workpiece body.

4. The universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw according to claim 1 is characterized in that: A disassembly assembly is provided between the two wedge-shaped pliers and the two flat pliers and the plurality of rectangular blocks. The disassembly assembly includes a disassembly block. A disassembly groove adapted to the disassembly block is provided on the surface of the wedge-shaped pliers.

5. The universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw according to claim 4 is characterized in that: Rubber pads are bonded to the left and right sides of the inner wall of the disassembly groove.

6. The universal complex cross-section titanium alloy extruded profile tension straightening clamping jaw according to claim 4 is characterized in that: A fixing bolt is provided between the wedge-shaped pliers and the disassembly block.

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