Turbine shell machining tool

Abstract

The utility model discloses a turbine shell machining tool, relates to the technical field of machining tools, and aims to solve the problem that positioning and clamping are tedious when a turbine shell is machined. The turbine shell machining tool comprises an assembly base and an expansion plug, and the expansion plug is installed on a clamping jaw disc of a machine tool through the assembly base. The assembling base is installed on the clamping jaw disc through a positioning bolt. The traditional clamping mode that positioning is conducted firstly and then fixing is conducted through a pressing block is omitted, the cavity of the turbine compressed gas is fixed through expansion of the expansion plug, the positioning and clamping process is simplified, and the machining efficiency is improved. By replacing the expansion plug matched with the to-be-machined blank in size, the tool can adapt to machining of turbine shells of different sizes, repositioning and mounting are not needed, and the machining difficulty and cost are reduced. The positioning base is of a polygonal structure, the number of the positioning base is consistent with the number of opened claws of the expansion plug, the positioning process of installation of the expansion plug is simplified, and the accuracy and stability of positioning are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of turbine shell machining frock, specifically a turbine shell machining frock. BACKGROUND

[0002] In the machining process of the turbine shell, the traditional positioning and clamping mode usually needs to be positioned first, and then fixed through the pressing block, which is complicated and time-consuming. In addition, for turbine shells of different sizes, the positioning and installation process needs to be re-performed, further increasing the processing difficulty. SUMMARY

[0003] To solve the above problems, that is, to solve the problems raised in the above background technology, the utility model provides a turbine shell machining frock, which comprises an assembly base and a swelling plug, the swelling plug is installed on the clamping jaw disc of the machine tool through the assembly base, and the assembly base is installed on the clamping jaw disc through positioning bolts.

[0004] The end of the swelling plug away from the assembly base is machined into a claw that can be opened through elastic deformation after being closed, and the number of claws is at least two.

[0005] The utility model further provides that: the end of the swelling plug close to the assembly base is machined into a polygonal positioning base, the assembly base is machined with a groove matched with the positioning base, and the positioning base is installed on the assembly base through positioning bolts.

[0006] The utility model further provides that: the number of sides of the polygonal positioning base is consistent with the number of claws opened by the swelling plug.

[0007] The utility model further provides that: the center line of the claw opened by the swelling plug is perpendicular to the side of the polygonal positioning base adjacent to it.

[0008] The utility model further provides that: the inner wall of the swelling plug is thickened, and the inner wall of the swelling plug is perpendicular to the clamping surface of the clamping jaw disc.

[0009] The utility model further provides that: the number of claws opened by the swelling plug is consistent with the number of clamping jaws of the clamping jaw disc.

[0010] The utility model discloses the beneficial technical effects are: the utility model discards the traditional first positioning and then through the fixed clamping mode of briquetting, utilizes the chamber of turbine compressed gas fixed with the open of inflation plug, simplifies the positioning clamping process, improves the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The overall structure schematic diagram of the scheme is shown.

[0012] Figure 2 The top view structure schematic diagram of the scheme is shown.

[0013] Figure 3 The plug-in inflation plug schematic diagram of the scheme is shown.

[0014] Figure 4 The expansion inflation plug schematic diagram of the scheme is shown.

[0015] Reference signs 1, inflation plug, 2, assembly base, 3, positioning base. DETAILED DESCRIPTION

[0016] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0017] The utility model discloses a kind of turbine shell machining tool, when being machined to turbine shell, turbine shell needs to be positioned clamped, the scheme discards the traditional first positioning and then through the fixed clamping mode of briquetting, utilizes the chamber of turbine compressed gas fixed with the open of inflation plug, since inflation plug 1 has been completed positioning process when installation, so that worker only needs to complete the process of positioning clamping by turbine shell being set on inflation plug 1, simplifies the process.

[0018] In the installation tool, first, the assembly base 2 is installed on the clamping jaw disc, the positioning of the assembly base is completed through the positioning bolt, then the expansion plug 1 matched with the size of the blank to be machined is selected, the expansion plug 1 is installed on the assembly base 2 through the positioning base 3, the positioning base 3 adopts a polygonal structure, the number of sides of the polygonal structure is consistent with the number of the jaws opened by the expansion plug (except that the expansion plug 1 is opened to separate into two jaws, two jaws adopt a quadrilateral, but since the tension distribution of the two jaws is uneven, at least three jaws of the expansion plug 1 are generally adopted), for example, the expansion plug 1 is separated into three jaws, then the positioning base 3 adopts a triangular structure, and the center line of each side of the polygonal structure on the positioning base 3 is perpendicular to the center line of the adjacent jaw.

[0019] When the clamping force is not required to be large, the turbine shell is only needed to be sleeved on the expansion plug 1, the jaws opened by the expansion plug 1 are compressed to be folded at the axis, then the turbine shell is fixed by being outwardly opened through the elastic deformation capacity of the jaws, and the cavity of the turbine compressed air of the fixed turbine shell is coaxial with the expansion plug 1.

[0020] When the clamping force is required to be large, after clamping, the clamping jaws on the clamping jaw disc are opened, the corresponding expansion plug 1 is selected according to the number of the clamping jaws, the number of the jaws opened by the expansion plug 1 is consistent with the number of the clamping jaws, when the fixed base 2 is installed, it is required that each side of the polygonal groove on the fixed base 2 is perpendicular to the center line of the adjacent clamping jaw, then the expansion plug 1 is installed according to the positioning base 3, the position of the clamping jaw is located at the inner center part of the jaws separated by the expansion plug 1, at this time, the inner wall of the expansion plug 1 is thickened, and the inner wall is perpendicular to the clamping jaw disc, when the turbine shell is clamped, it is only needed to control the clamping jaws to open to push the jaws of the expansion plug to open.

[0021] The size of the required clamping force depends on the material of the machined shell and the feed amount during machining.

[0022] When other sizes of turbine shells are machined, the expansion plug 1 only needs to be replaced through the positioning base 3, and the positioning and installation process does not need to be re-performed.

[0023] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model, and in particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0024] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The term "comprising" or any other similar word is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0027] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A turbine casing machining tooling comprising: It comprises an assembling base (2) and a bulge (1), the bulge (1) is installed on the jaw disc of a machine tool through the assembling base (2), the assembling base (2) is installed on the jaw disc through a positioning bolt; The end of the bulge (1) away from the assembling base (2) is processed into a claw that can be opened through elastic deformation after being closed, and the number of the claw is at least two.

2. A turbine casing machining tooling according to claim 1, wherein: The end of the bulge (1) close to the assembling base (2) is processed into a polygonal positioning base (3), the assembling base (2) is processed with a groove that matches the positioning base (3), and the positioning base (3) is installed on the assembling base (2) through a positioning bolt.

3. A turbine casing machining tooling according to claim 2, wherein: The number of the sides of the polygonal positioning base (3) is consistent with the number of the opened claws of the bulge (1).

4. A turbine casing machining tooling according to claim 3, wherein: The center line of the opened claw of the bulge (1) is perpendicular to the side of the polygon adjacent to it.

5. A turbine casing machining tooling according to any of claims 1 to 4, wherein: The inner wall of the bulge (1) is thickened, and the inner wall of the bulge (1) is perpendicular to the clamping surface of the jaw disc.

6. A turbine casing machining tooling according to claim 5, wherein: The number of the opened claws of the bulge (1) is consistent with the number of the jaws of the jaw disc.

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