CN204771656U - Anchor clamps suitable for four -axis machine tool machining turbine blade sagittal plane - Google Patents

Abstract

The utility model relates to a fixture suitable for machining the radial surface of a steam turbine blade by a four-axis machine tool, and relates to a fixture for machining the radial surface of a steam turbine blade. The utility model aims to solve the problem of low precision in processing steam turbine blades by using ordinary fixtures and ordinary three-axis machine tools in the past. A fixture suitable for machining the radial surface of a steam turbine blade by a four-axis machine tool, including a vise fixture and a vise fixing device; the vise fixing device includes a thimble seat, a tailstock, four cylindrical pins and a bottom plate; the thimble seat is arranged on the bottom of the bottom plate At one end, the tailstock is set at the other end on the same side of the base plate; multiple plane fixing holes are provided on the mounting surface of the base plate; multiple side fixing holes are provided on the side of the base plate; four cylindrical pin holes of the base plate are provided on the mounting surface of the base plate, Respectively form a complete cylindrical pin hole with the cylindrical pin hole of the top seat of the top seat and the cylindrical pin hole of the tailstock of the tailstock; the cylindrical pin is arranged in the cylindrical pin hole. The utility model is suitable for machining the radial surface of the steam turbine blade.

Description

A Fixture Suitable for Machining Radial Surface of Steam Turbine Blade by Four-Axis Machine Tool

technical field

The utility model relates to a fixture for processing the radial surface of a steam turbine blade.

Background technique

The number of steam turbine blades is large, and the machining accuracy is very high. Each stage has dozens or hundreds of blades. The machining and repair work of the radial surface of the steam turbine blade is cumbersome. The inclined plane (the angles are all in degrees, minutes and seconds) further increases the difficulty of processing. In the past, processing and repairing with ordinary three-axis machine tools required a large number of special fixtures to ensure the accuracy of the angle. Blade manufacturing costs increase. At the same time, the manufacturing error of the angle of the fixture affects the processing quality of the blade. The quality of each blade finally affects the composite work of the whole circle of blades.

Contents of the invention

In order to solve the problem of low accuracy of processing steam turbine blades by ordinary fixtures and ordinary three-axis machine tools in the past, the utility model further proposes a fixture suitable for four-axis machine tools to process the radial surface of steam turbine blades.

A fixture suitable for machining the radial surface of a steam turbine blade by a four-axis machine tool, comprising a vise fixture (I) and a vise fixing device (II); the vise fixture (I) is used for clamping the steam turbine blade (V); the vise The fixing device (II) includes a thimble seat (1), a tailstock (2), four cylindrical pins (3) and a bottom plate (4);

The thimble seat (1) is arranged at one end of the bottom plate (4), and the tailstock (2) is arranged at the other end on the same side of the bottom plate (4);

The top seat (1) is provided with four top seat fixing holes (1-1), top hole (1-2) and two top seat cylindrical pin holes (1-3);

Four top seat fixing holes (1-1) are arranged at the four corners of the top seat (1) perpendicular to the bottom plate (4), and the top seat (1) and the bottom plate (4) are fixed with bolts;

The center hole (1-2) is arranged on the center seat (1) parallel to the bottom plate (4); the thimble (Ⅲ) of the machine tool is connected to the center hole (1-2), and the thimble seat (1) and The relative fixation of the machine tool;

Two cylindrical pin holes (1-3) of the top seat are arranged on the top seat (1) in turn perpendicular to the bottom plate (4);

The tailstock (2) is provided with two tailstock vertical fixing holes (2-1), two tailstock horizontal fixing holes (2-2) and two tailstock cylindrical pin holes (2-3);

Two tailstock vertical fixing holes (2-1) are arranged on the tailstock (2) perpendicular to the bottom plate (4); bolts are used to connect the tailstock (2) and the bottom plate (4) through the tailstock vertical fixing holes (2-1). ) for fixation;

Two tailstock horizontal fixing holes (2-2) are arranged on the tailstock (2) parallel to the bottom plate (4); use bolts to pass through the tailstock horizontal fixing holes (2-2) to align the machine tool rotary table (IV) and the tailstock (2) Connect to realize the relative fixation of the tailstock (2) and the rotary table (Ⅳ) of the machine tool;

Two tailstock cylindrical pin holes (2-3) are arranged on the tailstock (2) perpendicular to the bottom plate (4);

The top seat (1) and the tail stock (2) are installed on the same side of the bottom plate (4), and the plane of the bottom plate (4) on which the top seat (1) and the tail stock (2) are installed is the installation surface, and the installation of the bottom plate (4) There are multiple plane fixing holes (4-1) on the surface; multiple plane fixing holes (4-1) are used to fix the vise fixture (I) and the pressure plate;

A plurality of side fixing holes (4-2) are provided on the side of the bottom plate (4) perpendicular to the installation surface; the plurality of side fixing holes (4-2) are used to fix the vise clamp (I) and the pressure plate;

The base plate (4) is provided with four base plate cylindrical pin holes (4-3), two base plate cylindrical pin holes (4-3) and two top seat cylindrical pin holes in the four base plate cylindrical pin holes (4-3) (1-3) are set correspondingly to form two complete cylindrical pin holes; the other two bottom plate cylindrical pin holes (4-3) in the four bottom plate cylindrical pin holes (4-3) are connected with the two tailstock cylindrical pin holes (2-3) Corresponding settings form two complete cylindrical pin holes;

The four cylindrical pins (3) are respectively arranged inside the four complete cylindrical pin holes to realize the connection between the thimble seat (1) and the base plate (4), the tailstock (2) and the base plate (4). The relative position is fixed.

The utility model has the following advantages:

Utilizing the utility model to process the blades of the steam turbine realizes the machining of the radial reference plane of the blades on the four-axis machine tool; since the radial angle is guaranteed by the rotation accuracy of the CNC machine tool itself, the machining accuracy of the radial surface of the blades is improved and the The processing quality of the blade increases the pass rate of the blade by about 15% and ensures the subsequent assembly of the whole machine. Moreover, the manufacturing cost is greatly saved, and the manufacturing cost is reduced by about 1%. Moreover, using the utility model to process steam turbine blades avoids the problem that a large number of ordinary clamps are required to fix the blades when using ordinary three-axis machine tools to process steam turbine blades, which can further reduce the amount of tools used and improve work efficiency.

Description of drawings

Fig. 1 is the front view of fixture;

Fig. 2 is the top view of fixture;

Fig. 3 is the left view of fixture;

Figure 4 is a right side view of the jig.

Detailed ways

Specific Embodiment 1: This embodiment is described in conjunction with Fig. 1 to Fig. 4, a fixture suitable for machining the radial surface of a steam turbine blade by a four-axis machine tool, including a vise fixture (I) and a vise fixing device (II); The clamp (Ⅰ) is used to clamp the steam turbine blade (Ⅴ); the vise fixing device (Ⅱ) includes the thimble seat (1), tailstock (2), four cylindrical pins (3) and the bottom plate (4);

The thimble seat (1) is arranged at one end of the bottom plate (4), and the tailstock (2) is arranged at the other end on the same side of the bottom plate (4);

The top seat (1) is provided with four top seat fixing holes (1-1), top hole (1-2) and two top seat cylindrical pin holes (1-3);

Four top seat fixing holes (1-1) are arranged at the four corners of the top seat (1) perpendicular to the bottom plate (4), and the top seat (1) and the bottom plate (4) are fixed with bolts;

The center hole (1-2) is arranged on the center seat (1) parallel to the bottom plate (4); the thimble (Ⅲ) of the machine tool is connected to the center hole (1-2), and the thimble seat (1) and The relative fixation of the machine tool;

Two cylindrical pin holes (1-3) of the top seat are arranged on the top seat (1) in turn perpendicular to the bottom plate (4);

The tailstock (2) is provided with two tailstock vertical fixing holes (2-1), two tailstock horizontal fixing holes (2-2) and two tailstock cylindrical pin holes (2-3);

Two tailstock vertical fixing holes (2-1) are arranged on the tailstock (2) perpendicular to the bottom plate (4); bolts are used to connect the tailstock (2) and the bottom plate (4) through the tailstock vertical fixing holes (2-1). ) for fixation;

Two tailstock horizontal fixing holes (2-2) are arranged on the tailstock (2) parallel to the bottom plate (4); use bolts to pass through the tailstock horizontal fixing holes (2-2) to align the machine tool rotary table (IV) and the tailstock (2) Connect to realize the relative fixation of the tailstock (2) and the rotary table (Ⅳ) of the machine tool;

Two tailstock cylindrical pin holes (2-3) are arranged on the tailstock (2) perpendicular to the bottom plate (4);

The top seat (1) and the tail stock (2) are installed on the same side of the bottom plate (4), and the plane of the bottom plate (4) on which the top seat (1) and the tail stock (2) are installed is the installation surface, and the installation of the bottom plate (4) There are multiple plane fixing holes (4-1) on the surface; multiple plane fixing holes (4-1) are used to fix the vise fixture (I) and the pressure plate;

A plurality of side fixing holes (4-2) are provided on the side of the bottom plate (4) perpendicular to the installation surface; the plurality of side fixing holes (4-2) are used to fix the vise clamp (I) and the pressure plate;

The base plate (4) is provided with four base plate cylindrical pin holes (4-3), two base plate cylindrical pin holes (4-3) and two top seat cylindrical pin holes in the four base plate cylindrical pin holes (4-3) (1-3) are set correspondingly to form two complete cylindrical pin holes; the other two bottom plate cylindrical pin holes (4-3) in the four bottom plate cylindrical pin holes (4-3) are connected with the two tailstock cylindrical pin holes (2-3) Corresponding settings form two complete cylindrical pin holes;

The four cylindrical pins (3) are respectively arranged inside the four complete cylindrical pin holes to realize the connection between the thimble seat (1) and the base plate (4), the tailstock (2) and the base plate (4). The relative position is fixed.

Specific implementation mode two: this implementation mode

The two tailstock horizontal fixing holes (2-2) are two tailstock horizontal fixing gaps; through the two tailstock horizontal fixing gaps, the machine tool rotary table (IV) and tailstock (2) are connected by bolts , to realize the relative fixation of the tailstock (2) and the rotary table (Ⅳ) of the machine tool.

Other parameters are the same as in the first embodiment.

Embodiment 3: The plurality of planar fixing holes ( 4 - 1 ) described in this embodiment are arranged in an array.

Other parameters are the same as in the second embodiment.

Embodiment 4: The plurality of side fixing holes (4-2) described in this embodiment are arranged in an array.

Other parameters are the same as those in the first to third specific embodiments.

Embodiment 5: The center hole (1-2) of the thimble seat (1) described in this embodiment is arranged coaxially with the connecting shaft of the machine tool rotary table (IV) connected to the tailstock (2).

Other parameters are the same as one of the specific embodiments 1 to 4.

Claims (5)

1. be applicable to a fixture for four axle machine tooling turbine blade sagittal planes, comprise vice clamp (I) and vice fixture (II); Vice clamp (I) is for clamping turbine blade (V); It is characterized in that: vice fixture (II) comprises thimble seat (1), tailstock (2), four straight pins (3) and base plate (4);

Thimble seat (1) is arranged on one end of base plate (4), and tailstock (2) is arranged on the other end of base plate (4) homonymy;

Described dead head (1) is provided with four dead head fixing holes (1-1), center hole (1-2) and two dead head cylinder pin holes (1-3);

Four dead head fixing holes (1-1) are arranged on the corner place of dead head (1) perpendicular to base plate (4), be fixed dead head (1) and base plate (4) with bolt;

Center hole (1-2) is parallel to base plate (4) and is arranged on the upper of dead head (1); Lathe carries thimble (III) apical grafting center hole (1-2) of thimble seat, realizes the relative fixing of thimble seat (1) and lathe;

Two dead head cylinder pin holes (1-3) are successively set on dead head (1) perpendicular to base plate (4);

Described tailstock (2) is provided with two vertical fixing holes of tailstock (2-1), two horizontal fixing holes of tailstock (2-2) and two tailstock cylinder pin holes (2-3);

Two vertical fixing holes of tailstock (2-1) are arranged on tailstock (2) perpendicular to base plate (4);

Two horizontal fixing holes of tailstock (2-2) are parallel to base plate (4) and are arranged on tailstock (2);

Two tailstock cylinder pin holes (2-3) are arranged on tailstock (2) perpendicular to base plate (4);

Dead head (1) and tailstock (2) are arranged on the homonymy of base plate (4), base plate (4) plane being provided with dead head (1) and tailstock (2) is installed surface, and the installed surface of base plate (4) is provided with multiple plane fixing hole (4-1); Multiple plane fixing hole (4-1) is for standing vice fixture (I) and pressing plate;

Multiple sides fixing hole (4-2) are provided with perpendicular on base plate (4) side of installed surface; Multiple sides fixing hole (4-2) are for standing vice fixture (I) and pressing plate;

Base plate (4) is provided with four base plate cylinder pin holes (4-3), two base plate cylinder pin holes (4-3) in four base plate cylinder pin holes (4-3) are corresponding with two dead head cylinder pin holes (1-3) to be arranged, and forms two complete cylinder pin holes; Two other base plate cylinder pin hole (4-3) in four base plate cylinder pin holes (4-3) is corresponding with two tailstock cylinder pin holes (2-3) to be arranged, and forms two complete cylinder pin holes;

It is inner that four described straight pins (3) are separately positioned on described four complete cylinder pin holes, for realizing relative position fixing of thimble seat (1) and base plate (4), tailstock (2) and base plate (4).

2. a kind of fixture being applicable to four axle machine tooling turbine blade sagittal planes according to claim 1, is characterized in that two described horizontal fixing holes of tailstock (2-2) are two horizontal fixed gap of tailstock; By two horizontal fixed gap of tailstock, with bolt, machine tool rotary dish (IV) is connected with tailstock (2), realizes the relative fixing of tailstock (2) and machine tool rotary dish (IV).

3. a kind of fixture being applicable to four axle machine tooling turbine blade sagittal planes according to claim 2, is characterized in that described multiple plane fixing hole (4-1) arrays are arranged.

4. a kind of fixture being applicable to four axle machine tooling turbine blade sagittal planes according to claim 3, is characterized in that described multiple sides fixing hole (4-2) array is arranged.

5. a kind of fixture being applicable to four axle machine tooling turbine blade sagittal planes according to claim 4, the center hole (1-2) that it is characterized in that described thimble seat (1) is coaxially arranged with the connecting axle of the machine tool rotary dish (IV) being connected tailstock (2).