Quick-change tool clamp for machining turbine blade

Abstract

The utility model discloses a quick-change tool clamp for turbine blade machining, and relates to the technical field of turbine blade machining. The clamp comprises a workbench and a clamp assembly, a matching groove is formed in the workbench, the clamp assembly comprises a linkage rod and a connecting plate, and the connecting plate is arranged in the matching groove and fixedly connected with the inner wall of the matching groove. The working table and the clamp assembly are arranged, the turbine blade needing to be machined is placed on the working table, the hollow portion of the turbine blade is inserted into the positioning ring, then the air cylinder is started to drive the linkage rod to move downwards, the linkage rod moves downwards to drive the two sets of driven rods to move, and under the cooperation of the matching base, the turbine blade is machined. The two groups of driven rods are arranged, so that the profiling positioning blocks at the other ends of the two groups of driven rods press down and fix the middle part of the turbine blade, the turbine blade is fixed, subsequent processing is facilitated, the structure is simple, the operation is convenient, and meanwhile, the profiling positioning blocks and the driven rods are fixed through fastening screws and are convenient to detach and replace so as to be suitable for turbine blades with different sizes.

Description

Technical Field

[0001] This utility model belongs to the field of turbine blade processing technology, and in particular relates to a quick-change tooling fixture for turbine blade processing. Background Technology

[0002] Turbine blades are an important component of the turbine section in a gas turbine engine. The high-speed rotating blades are responsible for drawing high-temperature and high-pressure airflow into the combustor to maintain engine operation. During the manufacturing process, turbine blades need to be positioned and clamped to facilitate the operation of the processing equipment.

[0003] Because turbine blades have many curved machining surfaces, they are difficult to clamp securely. However, the middle part of turbine blades is mostly hollow. In order to ensure machining efficiency, a tooling fixture is needed that can quickly change turbine blades while ensuring clamping stability and not hindering the machining of turbine blades. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change tooling fixture for turbine blade machining, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a quick-change tooling fixture for turbine blade machining, comprising a worktable and a fixture assembly. The worktable has a mating groove inside. The fixture assembly includes a linkage rod and a connecting plate. The connecting plate is disposed in the mating groove and is fixedly connected to the inner wall of the mating groove. A mating seat is fixedly connected to one end of the connecting plate. The mating seat is in the shape of an isosceles trapezoid. The linkage rod is disposed in the mating seat and slides with the mating seat. Both sides of one end of the linkage rod are hinged with driven rods. The two sets of driven rods are cross-hinged. The driven rods are disposed in the mating groove and slide with the mating groove. The bottom end of the driven rod is disposed on the inclined surface of the mating seat and slides with the mating seat. A contour positioning block is disposed at the top end of the driven rod. A fastening screw is disposed between the contour positioning block and the driven rod.

[0007] A connecting rod is fixedly connected to one side of the bottom end of each of the two sets of driven rods, and a cooperating spring is installed between the two sets of connecting rods. The cooperating spring is located on one side of the cooperating seat.

[0008] A positioning ring is fixedly connected to the upper surface of the worktable. The positioning ring is located on the periphery of the mating groove, and the contour positioning block is located on the outside of the positioning ring.

[0009] A mounting bracket is fixedly connected to the bottom surface of the workbench, and a cylinder is installed inside the mounting bracket. The output end of the cylinder is fixedly connected to the bottom end of the linkage rod.

[0010] Both sides of the bottom surface of the workbench are fixedly connected to brackets; by setting the brackets, the stability of the workbench is improved, and the use of the cylinder is also facilitated.

[0011] This utility model has the following beneficial effects:

[0012] This invention features a worktable and fixture assembly. The turbine blade to be processed is placed on the worktable, with its hollow portion inserted into a positioning ring. Then, a cylinder is activated, causing a linkage rod to move downwards. This movement of the linkage rod drives two sets of driven rods. With the cooperation of the mating seat, the contour positioning blocks at the other ends of the two sets of driven rods press down and fix the middle of the turbine blade, thus securing the turbine blade for subsequent processing. The structure is simple and easy to operate. Furthermore, the contour positioning blocks and driven rods are fixed with fastening screws, making them easy to replace and adaptable to turbine blades of different sizes.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model;

[0016] Figure 2 This is a left view of the assembly structure of this utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0018] Figure 4 for Figure 3 Enlarged view of region B in the middle;

[0019] Figure 5 This is a top view of the assembly structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Workbench; 101. Positioning ring; 102. Bracket; 103. Cylinder; 104. Mounting bracket; 105. Mating groove; 2. Fixture assembly; 201. Linkage rod; 202. Mating seat; 203. Driven rod; 204. Connecting rod; 205. Mating spring; 206. Fastening screw; 207. Contour positioning block; 208. Connecting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1-5As shown, this utility model is a quick-change tooling fixture for turbine blade machining, including a worktable 1 and a fixture assembly 2. The worktable 1 has a mating groove 105 inside. The fixture assembly 2 includes a linkage rod 201 and a connecting plate 208. The connecting plate 208 is disposed in the mating groove 105 and is fixedly connected to the inner wall of the mating groove 105. A mating seat 202 is fixedly connected to one end of the connecting plate 208. The mating seat 202 is in the shape of an isosceles trapezoid. The linkage rod 201 is disposed in the mating seat 202 and is mated with the mating rod 202. The seat 202 is slidably fitted, and both sides of one end of the linkage rod 201 are hinged with driven rods 203. The two sets of driven rods 203 are cross-hinged. The driven rods 203 are set in the mating groove 105 and are slidably fitted with the mating groove 105. The bottom end of the driven rod 203 is set at the inclined surface of the mating seat 202 and is slidably fitted with the mating seat 202. The top end of the driven rod 203 is provided with a contour positioning block 207, and a fastening screw 206 is provided between the contour positioning block 207 and the driven rod 203.

[0026] A connecting rod 204 is fixedly connected to one side of the bottom end of the two sets of driven rods 203, and a cooperating spring 205 is installed between the two sets of connecting rods 204. The cooperating spring 205 is located on one side of the cooperating seat 202.

[0027] A positioning ring 101 is fixedly connected to the upper surface of the workbench 1. The positioning ring 101 is located on the periphery of the mating groove 105, and the contour positioning block 207 is located on the outside of the positioning ring 101.

[0028] A mounting bracket 104 is fixedly connected to the bottom surface of the workbench 1. A cylinder 103 is installed inside the mounting bracket 104. The output end of the cylinder 103 is fixedly connected to the bottom end of the linkage rod 201.

[0029] Both sides of the bottom surface of the workbench 1 are fixedly connected to the brackets 102; by setting the brackets 102, the stability of the workbench 1 is improved, and the use of the cylinder 103 is also facilitated.

[0030] It should be further explained that, due to the numerous arc-shaped machined surfaces of turbine blades, securing them firmly is somewhat difficult. However, the central portion of the turbine blade is mostly hollow, allowing for fixation through this hollow area. In actual use, the turbine blade to be machined is placed on the worktable 1, with its hollow portion inserted into the positioning ring 101. Then, the cylinder 103 is activated, causing the linkage rod 201 to move downwards. This downward movement of the linkage rod 201 moves two sets of driven rods 203. With the cooperation of the mating seat 202, the contour positioning blocks 207 at the other end of the two sets of driven rods 203 press down and fix the central portion of the turbine blade, thus securing the turbine blade for subsequent machining. The structure is simple and the operation is convenient. Meanwhile, the contour positioning block 207 and the driven rod 203 are fixed by fastening screws 206, which is convenient for disassembly and replacement. Different contour positioning blocks 207 can be replaced according to different sizes of turbine blades to accommodate different sizes of turbine blades. After processing, the cylinder 103 drives the linkage rod 201 to move upward, which in turn drives the two sets of driven rods 203 to move upward. Under the action of the spring 205, the two sets of driven rods 203 swing, releasing the downward pressure of the contour positioning block 207 on the turbine blade, thereby enabling the turbine blade to be removed.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-change tooling fixture for machining turbine blades, comprising a worktable (1) and a fixture assembly (2), characterized in that: The workbench (1) has a mating groove (105) inside. The clamp assembly (2) includes a linkage rod (201) and a connecting plate (208). The connecting plate (208) is disposed in the mating groove (105) and is fixedly connected to the inner wall of the mating groove (105). One end of the connecting plate (208) is fixedly connected to a mating seat (202). The mating seat (202) is in the shape of an isosceles trapezoid. The linkage rod (201) is disposed in the mating seat (202) and slides with the mating seat (202). Both sides of one end are hinged with driven rods (203). The two sets of driven rods (203) are cross-hinged. The driven rods (203) are set in the mating groove (105) and slide in the mating groove (105). The bottom end of the driven rod (203) is set on the inclined surface of the mating seat (202) and slides in the mating seat (202). The top end of the driven rod (203) is provided with a contour positioning block (207). A fastening screw (206) is provided between the contour positioning block (207) and the driven rod (203).

2. The quick-change tooling fixture for turbine blade machining according to claim 1, characterized in that, A connecting rod (204) is fixedly connected to one side of the bottom end of the two sets of driven rods (203), and a cooperating spring (205) is installed between the two sets of connecting rods (204). The cooperating spring (205) is located on one side of the cooperating seat (202).

3. The quick-change tooling fixture for turbine blade machining according to claim 2, characterized in that, A positioning ring (101) is fixedly connected to the upper surface of the workbench (1). The positioning ring (101) is located on the periphery of the mating groove (105), and the contour positioning block (207) is located on the outside of the positioning ring (101).

4. A quick-change tooling fixture for turbine blade machining according to claim 3, characterized in that, The bottom surface of the workbench (1) is fixedly connected to a mounting bracket (104), and a cylinder (103) is installed inside the mounting bracket (104). The output end of the cylinder (103) is fixedly connected to the bottom end of the linkage rod (201).

5. A quick-change tooling fixture for turbine blade machining according to claim 4, characterized in that, The workbench (1) has brackets (102) fixedly connected to both sides of its bottom surface.

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