Titanium alloy swage work fixture

Abstract

The application relates to a titanium alloy die forging tool clamp which comprises a supporting assembly, a bridging assembly and a clamping assembly. The supporting assembly is composed of a sleeve ring and symmetrically arranged arc supports which are attached to the inner wall of a titanium alloy pipe body and are provided with soft pads, and the sleeve ring is connected with an extension rod. The bridging assembly comprises a storage cylinder, and the clamping assembly is composed of an upper pressing block, a main sleeve column and a secondary sleeve column. The storage cylinder is connected with a guide pipe through a gas nozzle, and the guide pipe is connected with a gas storage tank; a spring and a piston are arranged in the storage cylinder, the piston drives the main sleeve column and the upper pressing block, and a sealing ring on the upper pressing block is in contact with the inner wall of the pipe body. The sealing ring is a hollow buffer structure, a plurality of convex structures are arranged on the top of the sealing ring, and the adhesion and sealing effect are enhanced. The piston is divided into a first piston and a second piston, and the upper pressing block is elastically clamped to the pipe body under the action of gas pressure, so that deformation is avoided. In addition, inert gas enters a sealed cavity through the guide pipe, oxidation is prevented during laser cutting, and the pipe body can be repaired. The application has the functions of fixing, anti-oxidation and repairing, and is suitable for the hole opening operation of a thin-walled titanium alloy pipe body.

Description

Technical Field

[0001] This invention relates to the field of titanium alloy tube processing and fixing technology, and in particular to a tooling fixture for titanium alloy forgings. Background Technology

[0002] When using laser cutting, thin-walled titanium alloy tubes need to be fixed with clamps. Because the tube walls are very thin, the titanium alloy tubes are easily deformed or scratched during the clamping process. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] To address the aforementioned problems, the present invention provides the following technical solution: a titanium alloy forging tooling fixture includes a support assembly, one end of which is connected to a bridging assembly, and the bridging assembly is provided with a clamping assembly.

[0005] Preferably, the support assembly includes a collar and an arc bracket. The arc bracket is symmetrically arranged at both ends of the collar and is in close contact with the inner wall of the titanium alloy tube. The outer surface of the collar is connected to the extension rod, and the contact surface between the arc bracket and the titanium alloy tube is provided with a soft pad. The bridging assembly includes a storage cylinder, and the clamping assembly includes an upper top block, a main sleeve column, and a secondary sleeve column.

[0006] Preferably, a storage cylinder is fixed inside the collar, the storage cylinder is connected to an air nozzle, one end of the air nozzle is connected to a conduit, and the other end is connected to a valve on the gas tank. The extension rod is provided with a slot, and the conduit is located in the slot.

[0007] Preferably, one end of the storage cylinder is connected to the inside of the spring, the other end of the spring is connected to one end of the piston, the piston is connected to the bottom of the main sleeve, the bottom of the main sleeve is provided with a secondary sleeve, both of which are fitted onto the storage cylinder, the other end of the main sleeve is provided with an upper top block, the sealing cavity of the upper top block is connected to the communicating cavity of the main sleeve, the outer ring of the upper top block is provided with a sealing ring, and the sealing ring abuts against the inner wall of the titanium alloy tube.

[0008] Preferably, the sealing ring has a hollow structure with a buffer space, and the sealing ring has side recesses on both sides.

[0009] Preferably, the top of the sealing ring is provided with a top protrusion, which has a first protrusion, a second protrusion, a third protrusion, a fourth protrusion and a fifth protrusion, and the top protrusion is recessed into the buffer space of the sealing ring.

[0010] Preferably, the piston assembly, the first piston, the second piston, and the intermediate body are arranged such that the first piston is sleeved in the chamber, and the inner wall of the storage cylinder has an inner groove. In the initial stage, the first piston is located between the inner groove of the storage cylinder and the air nozzle.

[0011] Preferably, the first piston is connected to the second piston through an intermediate body, and there is a partition cavity between the first piston and the second piston.

[0012] Preferably, the second piston is located at the bottom of the main sleeve and is sleeved in the cavity, and both the second piston and the main sleeve have through holes that communicate with the communicating cavity.

[0013] The beneficial effects of the present invention are: by using the arc-shaped upper top block and the sealing ring thereon, and the soft pad of the arc support, the upper top block is driven by the piston body to elastically clamp the inner wall of the titanium alloy tube by the gas pressure, and the force characteristics of the circular shape of the pipe are utilized to fully prevent the titanium alloy tube from deforming due to the clamp fixation when fixing the titanium alloy tube.

[0014] Inert gas is introduced through a conduit, and after being pressed against the inner wall of the titanium alloy tube by a top block, the gas enters the sealed upper top block cavity. After laser cutting, the inert gas is ejected from the opening due to the gas pressure, which has the function of preventing oxidation at the cut. At the same time, if the titanium alloy tube is a defective product with a dent, it can be clamped by aligning the dented inner wall of the tube with this clamp. By continuously introducing gas through the conduit, the dent is bulged out by the gas pressure, which has the function of repairing the titanium alloy tube.

[0015] After cutting, the air pressure in the storage cylinder decreases, the force of the upper block pushing out decreases, and the tension of the spring causes the upper block to detach from the inner wall of the tube, thus achieving the effect of automatically retracting the clamping of the tube. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a perspective view of the entire embodiment.

[0018] Figure 2 This is an example. Figure 1 A three-dimensional view of the fixture assembled with the titanium alloy tube.

[0019] Figure 3 This is an example. Figure 1 A 3D view of the bridge component.

[0020] Figure 4 This is an example. Figure 1 A 3D view of the clamping component.

[0021] Figure 5 This is an example. Figure 1 Partial sectional view.

[0022] Figure 6 This is an example. Figure 5 The sectional view in the image.

[0023] Figure 7 This is an example. Figure 1 A three-dimensional view of the sealing ring of the clamping component.

[0024] In the figure; support component 100, collar 101, extension rod 102, slot 102a, connecting rod 103, arc bracket 104;

[0025] Bridging assembly 200, storage cylinder 201, chamber 201a, limiting recess 201b, inner wall groove 201c, partition cavity 201e, air nozzle 202, conduit 203, spring 204, piston 205, first piston 205a, second piston 205b, intermediate body 205c, through hole 400;

[0026] Clamping assembly 300, upper top block 301, sealing cavity 301a, sealing ring 302, buffer space 302a, side concave 302b, top convex 302c, first convex 302c-1, second convex 302c-2, third convex 302c-3, fourth convex 302c-4, fifth convex 302c-5, main sleeve post 303, connecting cavity 303a, secondary sleeve post 304, avoidance shear 304a, intermediate groove 305, titanium alloy tube body 500. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example

[0031] Reference Figures 1 to 7 This embodiment of the present invention provides a tooling fixture for titanium alloy forgings, including a support assembly 100, one end of which is connected to a bridging assembly 200, and a clamping assembly 300 is provided on the bridging assembly 200.

[0032] The support assembly 100 includes a collar 101 and an arc bracket 104. The arc bracket 104 is symmetrically arranged at both ends of the collar 101 and is in close contact with the inner wall of the titanium alloy tube 500. The outer surface of the collar 101 is connected to the extension rod 102, and the contact surface between the arc bracket 104 and the titanium alloy tube 500 is provided with a soft pad. The bridging assembly 200 includes a storage cylinder 201, and the clamping assembly 300 includes an upper top block 301, a main sleeve post 303, and a secondary sleeve post 304.

[0033] A storage cylinder 201 is fixed inside the collar 101. The storage cylinder 201 is connected to an air nozzle 202. The air nozzle 202 is connected to one end of the conduit 203, and the other end is connected to a valve on the gas tank. The extension rod 102 is provided with a slot 102a, and the conduit 203 is located in the slot 102a.

[0034] The storage cylinder 201 is connected to one end of the spring 204, and the other end of the spring 204 is connected to one end of the piston 205. The spring 204 serves to reset the piston 205 and support it in its initial state. The piston 205 is connected to the bottom of the main sleeve column 303. The bottom of the main sleeve column 303 is provided with a secondary sleeve column 304. Both are fitted onto the storage cylinder 201. The other end of the main sleeve column 303 is provided with an upper top block 301. The sealing cavity 301a of the upper top block 301 is connected to the communicating cavity 303a of the main sleeve column 303. The outer ring of the upper top block 301 is provided with a sealing ring 302, which abuts against the inner wall of the titanium alloy tube 500.

[0035] The sealing ring 302 has a hollow structure with a buffer space 302a, and the two sides of the sealing ring 302 are provided with side recesses 302b.

[0036] The top of the sealing ring 302 is provided with a top protrusion 302c, which has a first protrusion 302c-1, a second protrusion 302c-2, a third protrusion 302c-3, a fourth protrusion 302c-4 and a fifth protrusion 302c-5, and the top protrusion 302c is recessed into the buffer space 302a of the sealing ring 302.

[0037] The piston component 205, the first piston 205a, the second piston 205b and the intermediate body 205c are provided. The first piston 205a is sleeved in the chamber 201a. The inner wall of the storage cylinder 201 is provided with an inner groove 201c. In the initial stage, the first piston 205a is located between the inner groove 201c of the storage cylinder 201 and the air nozzle 202.

[0038] The first piston 205a is connected to the second piston 205b through an intermediate body 205c, and there is a partition cavity 201e between the first piston 205a and the second piston 205b.

[0039] The second piston 205b is located at the bottom of the main sleeve 303 and is sleeved in the chamber 201a. Both the second piston 205b and the main sleeve 303 have through holes 400 that are connected to the communicating chamber 303a.

[0040] Specifically, the clamp is inserted into the titanium alloy tube 500. The symmetrically arranged arc support 104 contacts the inner wall of the tube through the soft pad on its surface to achieve initial centering and positioning, preventing radial displacement. The external gas storage tank contains inert gas such as argon and is injected into the storage cylinder 201 through the conduit 203 and the gas nozzle 202. The gas pressure begins to rise, and the gas pressure pushes the first piston 205a to disengage from the inner groove 201c, causing it to move upward along the storage cylinder 201. The first piston 205a is linked to the second piston 205b through the intermediate body 205c, which drives the main sleeve column 303 to be pushed out axially. The main sleeve column 303 pushes the upper top block 301 to extend outward, so that the sealing ring 302 initially contacts the inner wall of the titanium alloy tube, forming a pre-clamping.

[0041] When the second piston 205b moves to the set position, its through hole 400 aligns with the communicating cavity 303a of the main sleeve 303. Inert gas enters the sealing cavity 301a. After the sealing cavity 301a is filled with gas, the buffer space 302a of the hollow structure sealing ring 302 expands. The multi-level protrusions 302c-1 to 302c-5 of the top protrusion 302c press the tube wall in layers, realizing flexible multi-layer sealing clamping. At the same time, the inert gas slowly overflows from the micro gap between the sealing ring 302 and the tube wall, forming a local oxygen-free environment in the laser processing area to prevent high-temperature oxidation of the titanium alloy (this over-filling inert gas usage will be reduced, and it has a gas pressure support effect on the laser cutting part. This fixture can also be used in the machining process of titanium alloy tube body 500). When the laser head drills or cuts on the outer wall of the tube body, the overflowing inert gas... Gases such as argon continuously cover the high-temperature processing area to prevent titanium from reacting with oxygen to form an oxide layer such as TiO2. After laser cutting, the gas supply from the conduit 203 is stopped. If a small hole is to be opened, the gas supply from the conduit 203 is stopped before cutting. The upper block 301 automatically stops contacting the titanium alloy tube 500, thus automatically releasing the clamping pipe. In addition, if the titanium alloy tube 500 cannot be dented, the storage cylinder 201 can be continuously filled with gas through this fixture, so that the gas continuously enters the sealed cavity 301a of the upper block 301 and is pushed out by the gas pressure. For this reason, the fixture can also repair the titanium alloy tube 500 before laser cutting (in order to reduce unnecessary loss of inert gas and maintain the gas pressure of the cavity 201a after cutting, the size of the through hole 400 should theoretically be as small as possible).

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tooling fixture for titanium alloy forgings, characterized in that: It includes a support component (100), one end of which is connected to a bridging component (200), and the bridging component (200) is provided with a clamping component (300). The support assembly (100) includes a collar (101) and an arc bracket (104). The arc bracket (104) is symmetrically arranged at both ends of the collar (101) and is in contact with the inner wall of the titanium alloy tube (500). The outer surface of the collar (101) is connected to the extension rod (102), and the contact surface between the arc bracket (104) and the titanium alloy tube (500) is provided with a soft pad. The bridging assembly (200) includes a storage cylinder (201), and the clamping assembly (300) includes an upper top block (301), a main sleeve column (303), and a secondary sleeve column (304). A storage cylinder (201) is fixed inside the collar (101). The storage cylinder (201) is connected to an air nozzle (202). The air nozzle (202) is connected to one end of a conduit (203), and the other end is connected to a valve on the gas tank. A slot (102a) is provided on the extension rod (102), and the conduit (203) is located in the slot (102a). The storage cylinder (201) is connected to one end of the spring (204), and the other end of the spring (204) is connected to one end of the piston (205). The piston (205) is connected to the bottom of the main sleeve (303). The bottom of the main sleeve (303) is provided with a secondary sleeve (304). Both are fitted onto the storage cylinder (201). The other end of the main sleeve (303) is provided with an upper top block (301). The sealing cavity (301a) of the upper top block (301) is connected to the communicating cavity (303a) of the main sleeve (303). The outer ring of the upper top block (301) is provided with a sealing ring (302). The sealing ring (302) abuts against the inner wall of the titanium alloy tube (500). The piston component (205) includes a first piston (205a), a second piston (205b) and an intermediate body (205c). The first piston (205a) is sleeved in the chamber (201a). The inner wall of the storage cylinder (201) is provided with an inner groove (201c). In the initial stage, the first piston (205a) is located between the inner groove (201c) of the storage cylinder (201) and the air nozzle (202). The second piston (205b) is located at the bottom of the main sleeve (303) and is sleeved in the chamber (201a). Both the second piston (205b) and the main sleeve (303) are provided with through holes (400) that are connected to the communicating chamber (303a).

2. The tooling fixture for titanium alloy forgings as described in claim 1, characterized in that: The sealing ring (302) has a hollow structure with a buffer space (302a), and the sealing ring (302) has side recesses (302b) on both sides.

3. The tooling fixture for titanium alloy forgings as described in claim 2, characterized in that: The top of the sealing ring (302) is provided with a top protrusion (302c), the top protrusion (302c) having a first protrusion (302c-1), a second protrusion (302c-2), a third protrusion (302c-3), a fourth protrusion (302c-4) and a fifth protrusion (302c-5), the top protrusion (302c) being recessed into the buffer space (302a) of the sealing ring (302).

4. The tooling fixture for titanium alloy forgings as described in claim 3, characterized in that: The first piston (205a) is connected to the second piston (205b) through an intermediate body (205c), and there is a partition cavity (201e) between the first piston (205a) and the second piston (205b).

Images