A split-type vibration slide table for linear friction welding equipment

Abstract

This application relates to a split-type vibratory slide table for linear friction welding equipment, comprising an upper slide table and a lower slide table; the upper slide table and the lower slide table are connected by a long blade clamp; the end face distance between the upper slide table and the lower slide table is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide table and the lower slide table, and the length of the long blade is greater than the length of the long blade clamp. This application can reduce the overturning torque, improve the load force on the guide rail and guide rail slider, and make the slide table movement more reliable, thereby enabling linear friction welding of long blades.

Description

Technical Field

[0001] This application relates to the field of linear friction welding technology, and in particular to a split-type vibration slide table for linear friction welding equipment. Background Technology

[0002] Linear friction welding (LFD) is a rapidly developing welding method primarily used in the manufacture of titanium alloy parts. LFD technology can be used to weld blades onto a rotor. A blade consists of a welding table, a clamping table, and the blade body. Before welding, the blade is first installed in a fixture, positioned by fixing the clamping table, and then the blade and fixture are mounted onto the slide of the LFD equipment. The slide is mounted on a guide rail slider, and the piston rod of a hydraulic cylinder drives the fixture, slide, and guide rail slider to vibrate up and down along the guide rail. The guide rail and hydraulic cylinder are mounted on a mounting base. During welding, the welding table end face of the blade is subjected to a vertical welding force and a horizontal upsetting force. For longer blades, conventional methods require manufacturing a long blade fixture to fix the long blade, and then mounting the long blade fixture onto the equipment's slide. When the welding table end face of a long blade is subjected to the vertical welding force and the horizontal upsetting force, the resulting overturning torque is very large, easily causing the guide rail slider to be unable to withstand the force and become damaged, thus preventing LFD welding.

[0003] Therefore, the inventors have provided a split-type vibration slide for linear friction welding equipment. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] This application provides a split-type vibrating slide table for linear friction welding equipment. The technical problem to be solved is that when the welding table end face of the long blade is subjected to vertical welding force and horizontal upsetting force, the overturning torque generated by the welding force is very large, which can easily cause the guide rail slider to be unable to withstand the force and be damaged, thus making it impossible to achieve linear friction welding.

[0006] (2) Technical solution

[0007] This application provides a split-type vibration slide table for linear friction welding equipment, including an upper slide table and a lower slide table; the upper slide table and the lower slide table are connected by a long blade clamp; the end face distance between the upper slide table and the lower slide table is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide table and the lower slide table, and the length of the long blade is greater than the length of the long blade clamp;

[0008] It also includes a slider, a guide rail, and a mounting base. The upper slide and the lower slide are respectively mounted on the slider, the slider is mounted on the guide rail, and the guide rail is mounted on the mounting base. The mounting base has a notch, and the long blade is located in the notch.

[0009] Furthermore, the upper part of the long blade clamp is mounted on the upper slide table, and the lower part of the long blade clamp is mounted on the lower slide table.

[0010] Furthermore, the range of the notch is greater than the range of the long blade during its up-and-down vibration.

[0011] Furthermore, the split-type vibration slide of the linear friction welding equipment also includes a hydraulic cylinder; the hydraulic cylinder is mounted on the mounting base; the piston rod of the hydraulic cylinder is connected to the lower slide and is used to drive the lower slide and the long blade clamp to vibrate up and down.

[0012] (3) Beneficial effects

[0013] The above-mentioned technical solution of this application has the following advantages:

[0014] The linear friction welding equipment provided in this application features a split-type vibratory slide table. This design breaks away from the traditional integral slide table structure by employing an upper slide table and a lower slide table, which are connected as a single unit by a clamp. The split-type vibratory slide table structure allows the line of action of the welding force to be closer to the guide rail, significantly reducing the overturning torque and improving the load on the guide rail and guide rail slider. This makes the slide table movement more reliable, thereby enabling linear friction welding of long blades. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of linear friction welding;

[0017] Figure 2 A schematic diagram of a bladed disk completed by linear friction welding;

[0018] Figure 3 A schematic diagram of the blades used in the welding process;

[0019] Figure 4 A schematic diagram of the blade and clamp installation;

[0020] Figure 5 A schematic diagram of the vibrating components of existing equipment;

[0021] Figure 6 A schematic diagram of a long blade subjected to linear friction welding;

[0022] Figure 7 A schematic diagram of welding long blades using existing equipment;

[0023] Figure 8 A schematic diagram of the split-type vibration slide table for the linear friction welding equipment provided in this application;

[0024] Figure 9 This is a schematic diagram of the long blade and long blade fixture provided in this application. Detailed Implementation

[0025] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0026] It should be understood that, when used in this application specification and appended claims, the term "comprising" indicates the presence of the described feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. The terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, in the description of this application specification and appended claims, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0029] Linear friction welding is a welding method that has seen rapid development in recent years. It is mainly used in the manufacture of titanium alloy parts. Its welding principle is described in [link to article]. Figure 1 The weldment 2 vibrates linearly in the vertical direction at a certain frequency and amplitude; the weldment 1, under the action of upsetting in the horizontal direction, contacts the end face of the weldment 2, and high-frequency friction generates heat on the contact surface. As the temperature rises, the material on the contact surface softens and is extruded. When the extrusion reaches a certain extent, the vibration is quickly stopped, and upsetting force is applied to connect the two weldments into one, completing the welding process. Linear friction welding technology can be used to weld blades to a wheel disk, such as... Figure 2 As shown, the wheel is located in the center, and dozens of blades are evenly distributed around the circumference of the wheel.

[0030] In the linear friction welding process, blade design needs to be tailored to the characteristics of the welding process, such as... Figure 3 As shown, the blade consists of three parts: a welding table, a clamping table, and the blade body. Before welding, the blade is first installed in the fixture, and the blade is positioned by fixing the clamping table, as shown. Figure 4 As shown. Then, install the blades and fixtures onto the slide of the linear friction welding equipment, as follows. Figure 5 The diagram shows the vibration slide of the linear friction welding equipment. The guide rail and hydraulic cylinder are mounted on the mounting base, and the slide is mounted on the guide rail slider. The piston rod of the hydraulic cylinder drives the clamp, slide, and guide rail slider to vibrate up and down along the guide rail. During welding, the welding table end face of the blade is subjected to a vertical welding force and a horizontal upsetting force.

[0031] For blades shorter than 300mm, current equipment can weld them; for longer blades, such as... Figure 6 As shown, the longest blade currently reaches 600mm, making welding impossible. If conventional methods are used, a long blade clamp needs to be manufactured to hold the long blade in place, and then the clamp needs to be mounted onto the equipment's slide, as shown below. Figure 7 As shown in the figure, dimension L1 is too large. When the welding table end face of the long blade is subjected to vertical welding force and horizontal upsetting force, the overturning torque generated by the welding force is very large, causing the guide rail slider to be unable to withstand it and thus be damaged.

[0032] Solving the welding problem of long blades by increasing the length and specifications of the guide rails, increasing the number of guide rail sliders, and increasing the height of the slide table would significantly increase the mass of the slide table, the driving force required for the hydraulic cylinders to withstand high-frequency vibration (commonly 50Hz), the internal dimensions of the hydraulic cylinders, the required flow rate of the hydraulic cylinders, and consequently, the power of the hydraulic system and the volume of the oil tank supplying the flow to the cylinders. Therefore, a new structure needs to be developed to achieve the welding of long blades and other long components.

[0033] To address the current challenge of linear friction welding for long blades (approximately 300-600mm in length), this application provides a split-type vibrating slide table for linear friction welding equipment. The main improvement is that the original single integral slide table is replaced with two split-type vibrating slide table structures. At the same time, the fixture structure is modified to adapt to the changes in the slide table, ultimately enabling the welding of long blades.

[0034] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0035] like Figure 8 As shown, the linear friction welding equipment split-type vibration slide provided in this embodiment includes an upper slide and a lower slide; the upper slide and the lower slide are connected by a long blade clamp; the end face distance between the upper slide and the lower slide is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide and the lower slide, and the length of the long blade is greater than the length of the long blade clamp; it also includes a slider, a guide rail, and a mounting base, the upper slide and the lower slide are respectively mounted on the slider, the slider is mounted on the guide rail, and the guide rail is mounted on the mounting base; the mounting base has a notch, and the long blade is located in the notch.

[0036] In some embodiments, the upper part of the long blade clamp is mounted on the upper slide table, and the lower part of the long blade clamp is mounted on the lower slide table.

[0037] In some embodiments, the range of the notch is greater than the range of the long blade when it vibrates up and down.

[0038] In some embodiments, the split-type vibration slide of the linear friction welding equipment further includes a hydraulic cylinder; the hydraulic cylinder is mounted on the mounting base; the piston rod of the hydraulic cylinder is connected to the lower slide and is used to drive the lower slide and the long blade clamp to vibrate up and down.

[0039] In application, firstly, such as Figure 8As shown, the fixture structure for fixing long blades can be optimized. While ensuring the rigidity of the fixture, the dimension L2 can be reduced, allowing most of the long blade to protrude outside the fixture, such as... Figure 9 As shown, the dimension H is also appropriately extended because the split-type vibration slide structure requires a proper increase in dimension H.

[0040] like Figure 8 and Figure 9 As shown, the linear friction welding equipment with a split-type vibrating slide provided in this application adopts a split-type vibrating slide structure design, including a lower slide and an upper slide. The distance between the end faces of the upper slide and the lower slide is dimension A, which should meet the height requirements of the long blade to be welded. The lower part of the long blade fixture is mounted and fixed on the lower slide, and the upper part of the long blade fixture is mounted and fixed on the upper slide. The long blade fixture acts as a bridge, connecting the lower slide and the upper slide into one unit, which is the reason for appropriately increasing dimension H. When the piston rod drives the lower slide and the long blade fixture to vibrate up and down, the long blade fixture drives the upper slide to vibrate up and down.

[0041] At the location of the mounting base corresponding to the blade, a notch is designed to avoid interference with the blade, and the range of the notch is larger than the range of the long blade's vertical vibration, thus ensuring that the vertical vibration of the long blade is not hindered. Since dozens of blades are evenly distributed along the entire circumference of the bladed disk component, this notch not only avoids the blade shown in the figure, but also the blades surrounding the blade shown in the figure. This is also the reason for completely separating the integral slide table into a split vibration slide table.

[0042] The linear friction welding equipment provided in this application features a split-type vibratory slide table. This design breaks away from the traditional integral slide table structure by employing an upper slide table and a lower slide table, which are connected as a single unit by a clamp. The split-type vibratory slide table structure allows the line of action of the welding force to be closer to the guide rail, significantly reducing the overturning torque and improving the load on the guide rail and guide rail slider. This makes the slide table movement more reliable, enabling linear friction welding of long blades. It eliminates the need to increase the power of the equipment's hydraulic system, allowing for the welding of long blades or other relatively long parts, thus expanding the range of parts that can be welded using linear friction welding technology.

[0043] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A split-type vibrating slide table for linear friction welding equipment, characterized in that, It includes an upper slide and a lower slide; the upper slide and the lower slide are connected by a long blade clamp; the end face distance between the upper slide and the lower slide is greater than the height of the long blade; wherein, when the long blade clamp is installed, the long blade is located between the upper slide and the lower slide, and the length of the long blade is greater than the length of the long blade clamp; It also includes a slider, a guide rail, and a mounting base. The upper slide and the lower slide are respectively mounted on the slider, the slider is mounted on the guide rail, and the guide rail is mounted on the mounting base. The mounting base has a notch, and the long blade is located in the notch.

2. The split-type vibrating slide table of the linear friction welding equipment as described in claim 1, characterized in that, The upper part of the long blade clamp is mounted on the upper slide table, and the lower part of the long blade clamp is mounted on the lower slide table.

3. The split-type vibrating slide table of the linear friction welding equipment as described in claim 1, characterized in that, The range of the notch is greater than the range of the long blade when it vibrates up and down.

4. The split-type vibratory slide table of the linear friction welding equipment as described in claim 1, characterized in that, It also includes a hydraulic cylinder; the hydraulic cylinder is mounted on the mounting base; the piston rod of the hydraulic cylinder is connected to the lower slide table and is used to drive the lower slide table and the long blade clamp to vibrate up and down.

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