Multi-connection guide vane profile detection tooling

Abstract

The utility model provides a kind of multi-connection guide vane profile detection tool, including bottom plate, first support, second support, first connection bottom reference strip and tail connection bottom reference strip are fixed on the bottom plate upper surface, first support and second support are respectively located the opposite sides of bottom plate, first connection bottom reference strip and tail connection bottom reference strip are respectively located the other opposite sides of bottom plate;It further includes multiple top reference strips, the first end of top reference strip is articulated with the top of first support, the second end of top reference strip is detachably connected with the top of second support.The utility model is adopted, and the whole constraint support of multi-connection guide vane is carried out by bottom plate, first connection, tail connection bottom reference strip can be used as the basin of vane profile detection reference, top reference strip can be used as the back of each connection vane profile detection reference, can cooperate with detection tool and detect the every connection profile of multi-connection guide vane, and detection efficiency is high;Detection reference position is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, specifically to a multi-section guide vane profile testing tooling. Background Technology

[0002] When inspecting multi-unit guide vanes, a profile template is required to inspect the blade profile of each unit. Inspection parameters include chord length deviation and blade profile accuracy. Previous methods for inspecting the profiles of multi-unit guide vanes did not provide overall constraint and fixation for the entire multi-unit guide vane system; instead, each unit's blade profile was inspected individually. This required multiple movements of the reference plate and other inspection tools, resulting in low efficiency. Furthermore, each unit lacked a stable inspection reference, making it prone to introducing inspection errors. With increasingly stringent product quality requirements, the previous methods for inspecting the profiles of multi-unit guide vanes are no longer sufficient. Therefore, there is an urgent need for a fixture capable of inspecting the profiles of each unit of a multi-unit guide vane system. Utility Model Content

[0003] To solve at least one of the above technical problems, this utility model provides a multi-section guide vane profile inspection fixture.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a multi-section guide vane profile inspection fixture, including a base plate, on which a first support, a second support, a first-section bottom reference strip, and a tail-section bottom reference strip are fixed. The first support and the second support are located on opposite sides of the base plate, and the first-section bottom reference strip and the tail-section bottom reference strip are located on the other opposite sides of the base plate. It also includes multiple top reference strips, which are distributed along the direction from the first-section bottom reference strip to the tail-section bottom reference strip. The first end of the top reference strip is hinged to the top of the first support, and the second end of the top reference strip is detachably connected to the top of the second support.

[0005] The beneficial effects of this utility model are: By employing this utility model, the multi-section guide vanes are constrained and supported as a whole by the base plate. This allows for the inspection of the profile of each section of the multi-section guide vanes in conjunction with inspection tools, resulting in high inspection efficiency. The bottom reference plate strips of the first section and the bottom reference plate strip of the tail section can serve as the inspection reference for the basin-shaped profile of the first and tail sections of the vanes, while the top reference plate strip can serve as the inspection reference for the back profile of each section of the vanes. This eliminates the need for multiple movement of the reference plate, ensuring stable and reliable inspection reference positions and improving inspection accuracy.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the first support is provided in multiple forms, all located on the same side of the base plate, and multiple top reference plates correspond one-to-one with the multiple first supports and are hinged together.

[0008] The use of multiple first supports facilitates the arrangement of the first supports and top reference plates according to the shape of the multi-section guide vanes during manufacturing, ensuring that the direction of the top reference plates is the same as that of the corresponding section of vanes, thus facilitating inspection. At the same time, when installing the multi-section guide vanes, it is convenient to lift multiple top reference plates to the same side, making installation easy.

[0009] Furthermore, the top reference strip includes a first-connection top reference strip, a middle-connection top reference strip, and a tail-connection top reference strip, which are distributed sequentially along the direction from the first-connection bottom reference strip to the tail-connection bottom reference strip; the second support has bosses on both sides, the second end of the first-connection top reference strip and the second end of the tail-connection top reference strip are respectively connected to the side of a corresponding boss by horizontal screws, and the second end of the middle-connection top reference strip is connected to the middle part of the second support by vertical screws.

[0010] The horizontal screws can be removed and installed from the outside of the boss, so that the operation of the horizontal screws and the vertical screws do not interfere with each other, making installation convenient.

[0011] Furthermore, both the bottom of the first support and the bottom of the second support are provided with mounting plates. The mounting plates are provided with pin holes and bolt holes. The pin holes are positioned with the base plate by support positioning pins, and the bolt holes are connected to the base plate by support bolts.

[0012] After positioning by the support positioning pin, the bolt holes of the mounting plate naturally correspond to the installation positions on the base plate, which facilitates the installation of the first and second supports and makes installation convenient.

[0013] Furthermore, the mounting plate is rectangular, with support positioning pins at two opposite corners and support bolts at the other two opposite corners.

[0014] This facilitates improved stability during the installation of the first and second supports.

[0015] Furthermore, a central bottom reference strip is fixed in the middle of the base plate.

[0016] The central reference plate strip can be used to support the central section of multi-section guide vanes, and can also serve as a reference for the inspection of the basin profile of the central section vanes, which facilitates the improvement of the comprehensiveness of vane inspection.

[0017] Furthermore, both ends of the middle bottom reference strip, both ends of the first bottom reference strip, and both ends of the tail bottom reference strip are fixed to the base plate with screws.

[0018] It is easy to assemble and disassemble, and the bottom reference plate strips of different heights can be replaced according to the specifications of the multi-section guide vanes and the clearance requirements between the guide vanes and the base plate during testing, making it highly adaptable.

[0019] Furthermore, the base plate is provided with multiple positioning pin holes in the area on both sides of the central base plate strip, and blade positioning pins are inserted into the positioning pin holes.

[0020] By inserting blade positioning pins adapted to the multi-section guide vanes into the positioning pin holes, it is easy to position the multi-section guide vanes during installation, ensuring accurate placement of the multi-section guide vanes and improving detection accuracy.

[0021] Furthermore, at least one blade positioning pin on each side of the central bottom reference plate strip is fixed with a positioning ball at its top.

[0022] Positioning the multi-stage guide vanes with a positioning ball helps reduce friction and avoids scratches from the vane positioning pins when fine-tuning the position of the multi-stage guide vanes.

[0023] Furthermore, multiple support legs are fixed to the lower side of the base plate.

[0024] It facilitates stable placement of the base plate, reduces the impact of uneven ground, and increases the height of the base plate for convenient testing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 for Figure 1 Top view.

[0027] Figure 3 for Figure 1 A sectional view along line AA.

[0028] In the accompanying drawings, the technical features represented by each reference numeral are as follows: 1-Base plate; 2-First support; 3-Second support; 4-First connecting bottom reference strip; 5-Tail connecting bottom reference strip; 6-First connecting top reference strip; 7-Middle connecting top reference strip; 8-Tail connecting top reference strip; 9-Boss; 10-Horizontal screw; 11-Vertical screw; 12-Support locating pin; 13-Support bolt; 14-Middle connecting bottom reference strip; 15-Blade locating pin; 16-Locking ball; 17-Foot. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] This utility model refers to Figure 1-3 .

[0031] This utility model provides a multi-section guide vane profile inspection fixture, including a base plate 1. A first support 2, a second support 3, a first-section bottom reference strip 4, and a tail-section bottom reference strip 5 are fixed on the base plate 1. The first support 2 and the second support 3 are located on opposite sides of the base plate 1, and the first-section bottom reference strip 4 and the tail-section bottom reference strip 5 are located on the other opposite sides of the base plate 1. It also includes multiple top reference strips, which are distributed along the direction from the first-section bottom reference strip 4 to the tail-section bottom reference strip 5. The first end of the top reference strip is hinged to the top of the first support 2, and the second end of the top reference strip is detachably connected to the top of the second support 3.

[0032] principle: When inspecting the profile of a multi-section guide vane, first loosen the other end of the top reference strip, lift the top reference strip upwards around its hinge axis, place the multi-section guide vane on the base plate 1, and support it with the first section bottom reference strip 4 and the last section bottom reference strip 5 to complete the installation. When inspecting a section of the multi-section guide vane, the other end of the top reference strip corresponding to that section is fixed to the top of the second support 3. The top reference strip can serve as the inspection reference for the back profile (i.e., the upper side) of the vane in that section, and the profile can be inspected in conjunction with the profile template. After inspection, loosen the top reference strip to avoid interfering with the inspection of the next section of vane, and then fix the other end of the top reference strip corresponding to the next section to the top of the second support 3 to inspect the next section of vane. In addition, the first section bottom reference strip 4 can serve as the inspection reference for the basin-shaped profile (i.e., the lower side) of the first section of vane, and the last section bottom reference strip 5 can serve as the inspection reference for the basin-shaped profile of the last section of vane.

[0033] By employing this utility model, the base plate 1 provides overall constraint and support for the multi-section guide vanes, enabling the inspection of each section's profile in conjunction with inspection tools, resulting in high inspection efficiency. The first section's bottom reference plate 4 and the tail section's bottom reference plate 5 can serve as inspection references for the basin-shaped profiles of the first and tail sections' vanes, while the top reference plate can serve as inspection references for the back-shaped profiles of each section's vanes. This eliminates the need for multiple movements of the reference plates, ensuring stable and reliable inspection reference positions and improving inspection accuracy.

[0034] Furthermore, the first support 2 is provided in multiple ways, all located on the same side of the base plate 1, and multiple top reference plates correspond one-to-one with and are hinged to the multiple first supports 2.

[0035] The presence of multiple first supports 2 facilitates the arrangement of the first supports 2 and top reference strips according to the shape of the multi-section guide vanes during manufacturing, ensuring that the direction of the top reference strips is the same as that of the corresponding section of vanes, thus simplifying inspection. At the same time, when installing the multi-section guide vanes, it is convenient to lift multiple top reference strips to the same side, making installation easier.

[0036] Furthermore, the top reference strip includes a first-connection top reference strip 6, a middle-connection top reference strip 7, and a tail-connection top reference strip 8, which are distributed sequentially along the direction from the first-connection bottom reference strip 4 to the tail-connection bottom reference strip 5; the second support 3 is provided with bosses 9 on both sides, the second end of the first-connection top reference strip 6 and the second end of the tail-connection top reference strip 8 are respectively connected to the side of a corresponding boss 9 by horizontal screws 10, and the second end of the middle-connection top reference strip 7 is connected to the middle part of the second support 3 by vertical screws 11.

[0037] Preferably, the top reference plate 7 of the central link is provided with one piece, and the first support 2 is provided with three pieces, which facilitates the surface inspection of the three guide vanes.

[0038] The horizontal screw 10 can be removed and installed from the outside of the boss 9, so that the operation of the horizontal screw 10 and the vertical screw 11 does not interfere with each other, making installation convenient.

[0039] Furthermore, both the bottom of the first support 2 and the bottom of the second support 3 are provided with mounting plates. The mounting plates are provided with pin holes and bolt holes. The pin holes are positioned with the base plate 1 by support positioning pins 12, and the bolt holes are connected to the base plate 1 by support bolts 13.

[0040] After being positioned by the support positioning pin 12, the bolt holes of the mounting plate naturally correspond to the installation positions on the base plate 1, which facilitates the installation of the first support 2 and the second support 3, making installation convenient.

[0041] Furthermore, the mounting plate is rectangular, with the support positioning pins 12 at two opposite corners and the support bolts 13 at the other two opposite corners.

[0042] Preferably, the mounting plate of the second support 3 is also provided with a support bolt 13 on the inner side of the middle of the long side.

[0043] This facilitates the improvement of the stability of the installation of the first support 2 and the second support 3.

[0044] Furthermore, a central bottom reference plate strip 14 is fixed in the middle of the base plate 1.

[0045] The central reference plate 14 can be used to support the central link of the multi-link guide vane, and can also serve as a reference for the inspection of the basin profile of the central link vane, which facilitates the improvement of the comprehensiveness of the vane inspection.

[0046] Furthermore, both ends of the middle bottom reference strip 14, both ends of the first bottom reference strip 4, and both ends of the tail bottom reference strip 5 are fixed to the base plate 1 with screws.

[0047] It is easy to assemble and disassemble, and the bottom reference plate strips of different heights can be replaced according to the specifications of the multi-section guide vanes and the clearance requirements between the guide vanes and the base plate 1 during testing, making it highly adaptable.

[0048] Furthermore, the base plate 1 is provided with a plurality of positioning pin holes in the area on both sides of the central bottom reference plate strip 14, and blade positioning pins 15 are inserted into the positioning pin holes.

[0049] By inserting a blade positioning pin 15 adapted to the multi-section guide blade into the positioning pin hole, it is easy to position the multi-section guide blade during installation, ensuring the accurate placement of the multi-section guide blade and improving the detection accuracy.

[0050] Furthermore, at least one blade positioning pin 15 on each side of the central bottom reference plate 14 is fixed with a positioning ball 16 at its top.

[0051] The multi-stage guide vanes are positioned by the positioning ball 16, which helps to reduce friction and avoids scratches from the vane positioning pin 15 when fine-tuning the position of the multi-stage guide vanes.

[0052] Furthermore, multiple support legs 17 are fixed to the lower side of the base plate 1.

[0053] It facilitates the stable placement of the base plate 1, reduces the impact of uneven ground, and increases the height of the base plate 1, making inspection convenient.

[0054] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0055] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0057] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0058] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., 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. The illustrative expressions of the above terms in this specification 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A multi-stage guide vane profile inspection fixture, characterized in that: The system includes a base plate (1), on which a first support (2), a second support (3), a first bottom reference strip (4), and a last bottom reference strip (5) are fixed. The first support (2) and the second support (3) are located on opposite sides of the base plate (1), and the first bottom reference strip (4) and the last bottom reference strip (5) are located on the other opposite sides of the base plate (1). The system also includes multiple top reference strips, which are distributed along the direction from the first bottom reference strip (4) to the last bottom reference strip (5). The first end of the top reference strip is hinged to the top of the first support (2), and the second end of the top reference strip is detachably connected to the top of the second support (3).

2. The multi-section guide vane profile inspection fixture according to claim 1, characterized in that: The first support (2) is provided in multiple ways and is located on the same side of the base plate (1). Multiple top reference plates correspond one-to-one with multiple first supports (2) and are hinged together.

3. The multi-section guide vane profile inspection fixture according to claim 2, characterized in that: The top reference strip includes a first-connection top reference strip (6), a middle-connection top reference strip (7), and a tail-connection top reference strip (8) distributed sequentially along the direction from the first-connection bottom reference strip (4) to the tail-connection bottom reference strip (5); the second support (3) is provided with bosses (9) on both sides, the second end of the first-connection top reference strip (6) and the second end of the tail-connection top reference strip (8) are respectively connected to the side of a corresponding boss (9) by a horizontal screw (10), and the second end of the middle-connection top reference strip (7) is connected to the middle part of the second support (3) by a vertical screw (11).

4. The multi-section guide vane profile inspection fixture according to claim 2, characterized in that: The bottom of the first support (2) and the bottom of the second support (3) are provided with mounting plates. The mounting plates are provided with pin holes and bolt holes. The pin holes are positioned with the base plate (1) by the support positioning pin (12), and the bolt holes are connected with the base plate (1) by the support bolts (13).

5. The multi-section guide vane profile inspection fixture according to claim 4, characterized in that: The mounting plate is rectangular, with the support positioning pins (12) at two opposite corners and the support bolts (13) at the other two opposite corners.

6. The multi-section guide vane profile inspection fixture according to any one of claims 1-5, characterized in that: The base plate (1) is also fixed with a central bottom reference plate strip (14) in the middle.

7. The multi-section guide vane profile inspection fixture according to claim 6, characterized in that: Both ends of the middle bottom reference strip (14), both ends of the first bottom reference strip (4), and both ends of the tail bottom reference strip (5) are fixed to the base plate (1) with screws.

8. The multi-section guide vane profile inspection fixture according to claim 6, characterized in that: The base plate (1) is provided with multiple positioning pin holes in the area on both sides of the central bottom reference plate strip (14), and blade positioning pins (15) are inserted into the positioning pin holes.

9. The multi-section guide vane profile inspection fixture according to claim 8, characterized in that: At least one blade positioning pin (15) on each side of the central bottom reference plate strip (14) has a positioning ball (16) fixed to the top of it.

10. The multi-section guide vane profile inspection fixture according to claim 1, characterized in that: The bottom plate (1) is also fixed with multiple support legs (17).

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