Aviation turbine blade tenon full-tooth positioning and clamping mistake proofing device

Abstract

The utility model relates to an aviation turbine blade tenon full-tooth positioning and clamping mistake-proofing device which comprises a vertical plate, a bottom plate, a positioning tooth block, a pressing tooth block, a support and a mistake-proofing pin. A vertical plate and a support are installed on the bottom plate, one side of a positioning tooth block is installed on one side of the vertical plate, a pressing tooth block is installed on the other side of the positioning tooth block, tooth-shaped grooves are formed in tooth heads of the positioning tooth block and the pressing tooth block, and the tooth shapes of the tooth-shaped grooves of the positioning tooth block and the tooth shapes of the tooth-shaped grooves of the pressing tooth block are opposite and are symmetrically arranged. A groove is formed in the middle of the pressing tooth block, the support is installed on the bottom plate, a mistake-proof pin is installed on the top of the support, and an inclined face is arranged at the end of the mistake-proof pin. By means of the structure, the problems that due to blade tenon symmetry and a full-tooth positioning and clamping mode in the prior art, errors are prone to occurring, basin back tooth profiles are clamped in an interchanging mode, the machining process completely deviates from the original process intention, and blades are scrapped are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbine blade processing tooling design, in particular to an aviation turbine blade tenon full-tooth positioning clamping error-proofing device. Background Art

[0002] During the processing of turbine blades, many processes require the full positioning and clamping of the tenon tooth profile to maintain the stability and accuracy of the blade processing state, thereby achieving high-precision grinding and electrical machining. However, this clamping method has a common problem. That is, due to the symmetry of the blade tenon, the full-tooth positioning clamping method is prone to errors, resulting in interchangeable clamping of the basin and back tooth profiles, causing the processing process to completely deviate from the original process intent and resulting in blade scrapping. Utility Model Content

[0003] The utility model provides an anti-error device for positioning and clamping the full teeth of the tenon of an aviation turbine blade, which solves the problem that due to the symmetry of the blade tenon, the existing full-tooth positioning and clamping method is prone to errors, resulting in interchangeable clamping of the basin and back teeth, causing the processing process to completely deviate from the original process intention and causing the blade to be scrapped.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A vertical plate and a support are installed on the bottom plate, one side of the positioning tooth block is installed on one side of the vertical plate, and a clamping tooth block is installed on the other side of the positioning tooth block. Tooth grooves are provided at the tooth heads of the positioning tooth block and the clamping tooth block, and the tooth shapes of the tooth grooves of the positioning tooth block and the tooth grooves of the clamping tooth block are opposite and symmetrically arranged. A groove is provided in the middle of the clamping tooth block, and the support is installed on the bottom plate. An anti-misalignment pin is installed on the top of the support, and the end of the anti-misalignment pin has an inclined surface.

[0006] The beneficial effect of the utility model is that the tenon part of the blade is clamped in the tooth groove of the positioning tooth block and the tooth groove of the clamping tooth block, an anti-error pin is installed at the end of the support, and the inclined surface of the end of the anti-error pin is installed according to the bending trend direction of the blade body, so that it can block the feeding of the wrong blade and avoid the airborne trajectory of the correct blade clamping.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the inclined surface of the anti-misalignment pin is consistent with the bending trend of the blade body.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that the inclined surface of the anti-error pin is consistent with the bending trend of the blade body, and the inclined surface at the end of the anti-error pin is installed according to the bending trend of the blade body, so that it can block the feeding of the wrong blade while avoiding the airborne trajectory of the correct blade clamping.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the anti-error pin is connected to the support by interference fit.

[0012] The beneficial effect of adopting the above further solution is that the anti-misalignment pin is connected to the support by interference fit, which prevents the anti-misalignment pin from moving in series and affecting the correct clamping of the blade.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, a positioning pin is provided on the top of the support, and the top of the positioning pin is abutted against the bottom of the blade tenon.

[0015] The beneficial effect of adopting the above further scheme is that a positioning pin is provided on the top of the support, which can support and position the blade tenon, while limiting the freedom of the tenon direction of the blade to prevent the blade tenon from falling and causing damage to the blade.

[0016] On the basis of the above technical solution, the present invention can also be improved as follows.

[0017] Furthermore, the positioning pin is connected to the support by interference fit.

[0018] The beneficial effect of adopting the above further solution is that the positioning pin is connected with the support by interference fit, which prevents the positioning pin from moving out of control and affecting the correct clamping of the blade.

[0019] On the basis of the above technical solution, the present invention can also be improved as follows.

[0020] Furthermore, locking blocks are provided at the tails of the positioning tooth block and the pressing tooth block, and the tails of the positioning tooth block and the pressing tooth block are fixed by the locking blocks.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that the tail of the positioning tooth block and the clamping tooth block are locked and fixed by the locking block. Since a groove is provided in the middle of the clamping tooth block, the clamping tooth block can use the locking block as a fulcrum to fine-tune the clamping degree of the tooth groove of the clamping tooth block and the positioning tooth block at the groove, so as to facilitate the tenon of the blade to be inserted into the tooth groove.

[0022] On the basis of the above technical solution, the present invention can also be improved as follows.

[0023] Furthermore, the positioning tooth block and the pressing tooth block are fixedly connected via a connecting piece.

[0024] The beneficial effect of adopting the above-mentioned further scheme is that the positioning tooth block and the clamping tooth block are fixedly connected by a connecting piece, and the connection between the clamping tooth block and the positioning tooth block can be loosened, so that the clamping tooth block can use the locking block as a fulcrum to fine-tune the clamping degree of the tooth groove of the clamping tooth block and the positioning tooth block at the groove, so that the tenon part of the blade can be smoothly installed in the tooth groove between the positioning tooth block and the clamping tooth block.

[0025] On the basis of the above technical solution, the present invention can also be improved as follows.

[0026] Furthermore, the pressing tooth block can be detachably mounted on the positioning tooth block.

[0027] The beneficial effect of adopting the above further solution is that the pressing tooth block can be detachably mounted on the positioning tooth block, so that the pressing tooth block and the positioning tooth block can be easily disassembled and replaced.

[0028] On the basis of the above technical solution, the present invention can also be improved as follows.

[0029] Furthermore, the vertical plate and the support can be detachably installed on the bottom plate.

[0030] The beneficial effect of adopting the above further solution is that both the vertical plate and the support can be detachably installed on the bottom plate, which facilitates the adjustment of the installation of the vertical plate and the support.

[0031] On the basis of the above technical solution, the present invention can also be improved as follows.

[0032] Furthermore, the positioning tooth block is fixedly mounted on the vertical plate.

[0033] The beneficial effect of adopting the above further solution is that the positioning tooth block is fixedly installed on the vertical plate to determine the position where the blade tenon is inserted into the tooth-shaped groove, thereby preventing damage to the blade tenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of a full-tooth positioning and clamping error-proofing device for tenons of aviation turbine blades according to the utility model;

[0035] Figure 2 It is a front structural schematic diagram of the utility model;

[0036] Figure 3 It is a side structural schematic diagram of the utility model;

[0037] Figure 4 It is a top view of the utility model;

[0038] Figure 5 This is another side structural schematic diagram of the utility model.

[0039] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 110-vertical plate; 120-bottom plate; 130-positioning tooth block; 140-pressing tooth block; 141-toothed groove; 143-locking block; 145-connecting piece; 147-groove; 150-support; 160-anti-misalignment pin; 161-inclined surface; 170-positioning pin. DETAILED DESCRIPTION

[0040] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0041] Example 1

[0042] like Figure 1-5 As shown, a vertical plate 110 and a support 150 are installed on the bottom plate 120, one side of the positioning tooth block 130 is installed on one side of the vertical plate 110, and a clamping tooth block 140 is installed on the other side of the positioning tooth block 130. Tooth-shaped grooves 141 are provided at the tooth heads of the positioning tooth block 130 and the clamping tooth block 140. The tooth shapes of the tooth-shaped grooves 141 of the positioning tooth block 130 and the tooth-shaped grooves 141 of the clamping tooth block 140 are opposite and symmetrically arranged, a groove 147 is provided in the middle of the clamping tooth block 140, the support 150 is installed at the tooth-shaped grooves 141 of the positioning tooth block 130 and the clamping tooth block 140, and an anti-misalignment pin 160 is installed on the top of the support 150, and the end of the anti-misalignment pin 160 has an inclined surface 161.

[0043] Specifically, adjust the direction of blade placement, place the bending trend of the blade tail in the direction of the inclined surface 161 of the anti-error pin 160, and then place the tenon of the blade in the toothed groove 141 formed by the positioning tooth block 130 and the clamping tooth block 140, so that the bending trend of the blade tail is consistent with the direction of the inclined surface 161 of the anti-error pin 160, and finally, process and feed the blade.

[0044] like Figure 1-5 As shown, the inclined surface 161 of the anti-misalignment pin 160 is consistent with the bending trend of the blade body.

[0045] Specifically, the inclined surface 161 of the anti-error pin 160 is kept consistent with the bending trend of the blade body, and there is a certain gap between the inclined surface 161 of the anti-error pin 160 and the curved surface of the blade body. Since the blade size has a tolerance value, the inclined surface 161 of the anti-error pin 160 is prevented from causing damage to the blade body.

[0046] like Figure 1-5 As shown, the anti-misalignment pin 160 is connected to the support 150 by interference fit.

[0047] Specifically, the anti-error pin 160 is connected to the support 150 by interference fit, so as to prevent the anti-error pin 160 from moving in a disorderly manner and affecting the correct clamping of the blade.

[0048] like Figure 1-5 As shown, a positioning pin 170 is also provided at the top of the support 150, and the top of the positioning pin 170 is abutted against the bottom of the blade tenon.

[0049] Specifically, a matching positioning pin 170 is selected according to the specifications of the blade body. Then, the tenon of the blade is placed in the toothed groove 141 of the positioning tooth block 130 and the pressing tooth block 140, and the top of the positioning pin 170 is against the bottom of the blade tenon to support the blade tenon and limit the directional freedom of the blade tenon teeth to prevent the blade tenon from falling and causing damage to the blade.

[0050] like Figure 1-5 As shown, the positioning pin 170 is connected to the support 150 by interference fit.

[0051] Specifically, the positioning pin 170 is connected to the support 150 by interference fit, so as to prevent the positioning pin 170 from moving and affecting the correct clamping of the blade.

[0052] like Figure 1-5 As shown, a locking block 143 is further provided at the tail of the positioning tooth block 130 and the pressing tooth block 140 , and the tail of the positioning tooth block 130 and the pressing tooth block 140 are fixed by the locking block 143 .

[0053] Specifically, when installing the tenon of the blade, the clamping tooth block 140 uses the locking block 143 as a fulcrum, and fine-tunes the clamping degree of the clamping tooth block 140 and the tooth groove 141 of the positioning tooth block 130 at the groove 147 to facilitate the tenon of the blade to be inserted into the tooth groove 141.

[0054] like Figure 1-5 As shown, the positioning tooth block 130 and the pressing tooth block 140 are fixedly connected via a connecting piece 145 .

[0055] Specifically, when installing the tenon of the blade, loosen the connection between the clamping tooth block 140 and the positioning tooth block 130, use the locking block 143 as a fulcrum, and fine-tune the clamping degree of the clamping tooth block 140 and the tooth groove 141 of the positioning tooth block 130 at the groove 147, and then, insert the tenon of the blade into the tooth groove 141.

[0056] like Figure 1-5 As shown, the pressing tooth block 140 can be detachably mounted on the positioning tooth block 130 .

[0057] Specifically, the pressing tooth block 140 can be detachably mounted on the positioning tooth block 130 , so that the pressing tooth block 140 and the positioning tooth block 130 can be easily disassembled and replaced.

[0058] like Figure 1-5 As shown, the vertical plate 110 and the support 150 can be detachably mounted on the bottom plate 120 .

[0059] Specifically, the installation positions of the stand plate 110 and the support 150 are adjusted according to the size of the blade.

[0060] like Figure 1-5 As shown, the positioning tooth block 130 is fixedly mounted on the vertical plate 110 .

[0061] Specifically, the positioning tooth block 130 is fixedly mounted on the vertical plate 110 to determine the position where the blade tenon is inserted into the tooth-shaped groove 141 to prevent damage to the blade tenon.

[0062] The beneficial effects of this embodiment are: the tenon part of the blade is clamped in the tooth groove 141 of the positioning tooth block 130 and the tooth groove 141 of the clamping tooth block 140, and the anti-error pin 160 is installed at the end of the support 150. The inclined surface 161 at the end of the anti-error pin 160 is tilted and adjusted according to the curvature direction of the blade body, so that it can block the feeding of the wrong blade and avoid the airborne trajectory of the correct blade clamping.

[0063] The working process of this embodiment is as follows: when installing the tenon of the blade, the connection between the pressing tooth block 140 and the positioning tooth block 130 is loosened, and the pressing tooth block 140 uses the locking block 143 as a fulcrum, and the clamping degree of the pressing tooth block 140 and the tooth groove 141 of the positioning tooth block 130 is finely adjusted at the groove 147, and then the direction of the blade placement is adjusted, and the curved surface of the blade tail is placed in the direction of the inclined surface 161 of the anti-error pin 160, and then the tenon of the blade is placed in the tooth groove 141 opened by the positioning tooth block 130 and the pressing tooth block 140, so that the bending trend direction of the blade tail is consistent with the inclined direction of the inclined surface 161 of the anti-error pin 160, and then the tenon of the blade is inserted into the tooth groove 141. At the same time, the top end of the positioning pin 170 is against the bottom of the blade tenon, which is used to support the blade tenon and limit the directional freedom of the blade tenon to prevent the blade tenon from falling and causing damage to the blade.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like 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 the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device, characterized in that: The invention comprises a vertical plate (110), a bottom plate (120), a positioning tooth block (130), a pressing tooth block (140), a support (150) and an anti-error pin (160), wherein the vertical plate (110) and the support (150) are installed on the bottom plate (120), one side of the positioning tooth block (130) is installed on one side of the vertical plate (110), and the other side of the positioning tooth block (130) is installed with the pressing tooth block (140), and the positioning tooth block (130) and the pressing tooth block (140) are installed on the bottom plate (120). The tooth heads of the tooth blocks (130) are provided with tooth grooves (141), the tooth shapes of the tooth grooves (141) of the positioning tooth block (130) and the tooth grooves (141) of the pressing tooth block (140) are opposite and symmetrically arranged, a groove (147) is provided in the middle of the pressing tooth block (140), the support (150) is installed on the base plate (120), the anti-misalignment pin (160) is installed on the top of the support (150), and the end of the anti-misalignment pin (160) has an inclined surface (161).

2. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1 is characterized in that: The inclined surface (161) of the anti-error pin (160) is consistent with the bending trend of the blade body.

3. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1 is characterized in that: The anti-error pin (160) is connected to the support (150) by interference fit.

4. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1 is characterized in that: A positioning pin (170) is also provided at the top of the support (150), and the top of the positioning pin (170) is pressed against the bottom of the blade tenon.

5. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 4 is characterized in that: The positioning pin (170) is connected to the support (150) by interference fit.

6. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1 is characterized in that: The tails of the positioning tooth block (130) and the pressing tooth block (140) are also provided with locking blocks (143), and the tails of the positioning tooth block (130) and the pressing tooth block (140) are fixed by the locking blocks (143).

7. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1 is characterized in that: The positioning tooth block (130) and the pressing tooth block (140) are fixedly connected via a connecting piece (145).

8. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 7, characterized in that: The pressing tooth block (140) is detachably mounted on the positioning tooth block (130).

9. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1, characterized in that: The vertical plate (110) and the support (150) can both be detachably mounted on the bottom plate (120).

10. The aircraft turbine blade tenon full-tooth positioning and clamping error-proofing device according to claim 1, characterized in that: The positioning tooth block (130) is fixedly mounted on the vertical plate (110).

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